摘要:
A cutting machine is provided with a machine main body and an NC device. The NC device controls the machine main body and has a tool radius compensation amount calculation unit, a machining path calculation unit, and a drive control unit. The tool radius compensation amount calculation unit generates tool radius compensation information. The machining path calculation unit generates a tool radius compensation control signal. The drive control unit generates a drive control signal. The machine main body has a machining unit and a tool path control unit. The machining unit cuts a workpiece by changing a relative position thereof with respect to the workpiece. Based on the drive control signal, the tool path control unit controls a tool path corresponding to a cutting tool and having a non-circular shape.
摘要:
A determination part determines whether or not a shadow of an upper mold is expanded to a photodiode by laser beam projected to a light receiver side based on a light receiving state of a photodiode positioned in a vicinity of the upper mold. When it is determined that the shadow of the upper mold is expanded to the photodiode positioned in the nearest vicinity of the upper mold, the invalidation unit invalidates the photodiode. A detection unit detects a presence or absence of a foreign body between the upper mold and a lower mold based on light receiving states of the effective plurality of photodiodes during a lowering operation of an upper table.
摘要:
A product sorting apparatus includes a pallet station supporting a pallet on which a product is placed and moves up and down between a base position and a raised position, a transfer device transferring the product to a first area that is on a first side of the pallet station, a first cart movable between the first area and a second area that is on a second side of the pallet station, and a second cart movable between the first area and the second area and able to pass through the inside of the first cart. Through the inside of the pallet station set at the base position, the first cart is unable to pass and the second cart is able to pass, and through the inside of the pallet station set at the raised position, both the first and second carts are able to pass.
摘要:
The present invention relates to a bending press comprising an upper table (130) and a lower table (132) placed edge-to-edge in the vertical direction, with one of the tables being movable relative to the other in the vertical direction, and with one of the tables presenting slots (134, 136) that are placed symmetrically relative to the midplane (P′P). Each slot has an open outside end and comprises a first slot portion (135a, 137a) and a second slot portion (135b, 137b) that is situated on the inside relative to the first slot portion and that is connected thereto, the shapes of said slot portions being such that the stiffness of the table portion situated between the slot and the tool fastener is greater between the first slot portion and the tool fastener than between the second slot portion and the tool fastener. At least one element (180) for adjusting the flexing of said table is disposed in the first slot portion.
摘要:
A material table 39 supporting materials W is provided so as to be able to move between a plate material taking-in/out area 11 and material wait area 13, and when the material table 39 is positioned in the plate material taking-in/out area 11, the material table 39 is positioned in a lower position adjacent to an upper end portion of a slat conveyor 33.
摘要:
The basic technical concept of the invention resides in a horizontal type band saw machine adapted to utilize the method of maintaining the band saw blade at a travelling speed selected depending upon the property and shape of the material to be machined, of introducing operating fluid or an hydraulic mechanism controlling raising and lowering of a housing accommodating said band saw blade into a plunger pump at a speed in accordance with an effective weight of the housing, and of sending out the thus introduced operating fluid by driving the plunger pump periodically in a cycle corresponding to the travelling speed of the band saw blade. The machine of the invention comprises novel mechanisms such as a mechanism for imparting a predetermined tension to the band saw blade, a safety mechanism for detecting slippage of the band saw blade, a guide mechanism comprising a combination of specially arranged rollershaped guide member and plate-like guide member, a mechanism comprising a plurality of supporting means for supporting the back of the band saw blade, a mechanism for detecting conditions of the feeding material, a feed roller mechanism, and a mechanism for securely clamping sawn pieces.
摘要:
A proportional reducing valve is disclosed wherein an ''''entering'''' fluid flow is received through an inlet port in communication with a first valve bore containing a first reciprocal valve member. The first bore is connected through an intermediate passageway to a second parallel valve bore containing a second reciprocal valve member. The second valve bore is in communication with an outlet port through which fluid received from the first valve bore through said passageway exits from the valve housing as an ''''exiting'''' fluid flow. The second valve member includes a passageway which, depending on the position of the second valve member within the second cylinder, may communicate with a drainage passageway leading to a drain port. The valve members are biased by springs against a rocker arm supported on a fulcrum, the position of which is adjustable in relation to the axes of the first and second valve bores to provide a means of controlling the pressure of the exiting fluid flow in proportion to that of the entering fluid flow.
摘要:
Apparatus for feeding a workpiece into cutting position on a cutting device, especially on a band-sawing device, wherein a work feed roller is raised above or lowered below the upper surface of the base of the cutting device by using hydraulic pressure for operating a hydraulic vice, thus relieving manual labor for feeding the workpiece, and enabling an extremely simplified feeding operation.
摘要:
Method to control the feeding amount in hydraulically controlled band sawing machines having a pivotable frame which supports the band saw, and a hydraulic cylinder for lifting and lowering the frame with respect to the material to be cut, comprising a hydraulic pressure control means for cylinder, valve means (preferably with a knife-edge shaped outlet) for controlling the quantity of hydraulic fluid reaching the cylinder, and at least one hydraulic connection, namely between the outlet of the control means and the inlet of the valve means.
摘要:
For use with a bending press, a jig apparatus of relatively simple design for setting a lower die in complete alignment with an upper head. The apparatus includes a die holding member having recessed grooves of the shape of the letter Omega ( omega) turned up side down, and semi-cylindrical members suitably shaped to fit into the recessed grooves. The semi-cylindrical member is urged to the inner surface of the recessed groove by a bolt threaded into the bottom of the lower die, but with the pressure limited by the collar inserted between the bolt head and the lower die. With this limited pressure, the lower die is preliminarily set, yet it is still movable, for example, by a hammering action. After further fine adjustment, the lower die is solidly fixed to the holding member, for which purpose, a means is provided to forcibly deform the semi-cylindrical member within the confinement of the recessed groove, preventing further movement of the semi-cylindrical member and of the lower die relative to the die holding member.