Linear cutting positioning clamp

Abstract

The utility model provides a linear cutting positioning clamp, which belongs to the technical field of positioning clamps and comprises a positioning connecting base, a taking support frame, a clamping driving lead screw, a taking mounting plate, a plurality of groups of clamping mechanisms and a taking driving mechanism, the connecting sliding blocks are fixedly connected to the front end and the rear end of the lower portion of the positioning connecting base correspondingly. The taking supporting frames are fixedly connected to the left side and the right side of the rear end of the upper portion of the positioning connecting base correspondingly. The clamping driving lead screw is rotationally connected to the inner side of the positioning connecting base; the taking mounting plate is rotationally connected to the inner side of the taking supporting frame. The multiple sets of clamping mechanisms are arranged on the inner side of the positioning connecting base. And the taking driving mechanism is arranged on the outer side of the taking mounting plate, workers can conveniently take the cut workpieces, unified taking of the workpieces is achieved, and the machining efficiency of the workpieces is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning fixtures, and more specifically, particularly relates to a wire cutting positioning fixture. Background Art

[0002] When processing workpieces, it is often necessary to perform linear cutting on the workpieces. Linear cutting uses a moving metal wire (such as molybdenum wire, copper wire or alloy wire) as an electrode wire. The high temperature generated by the pulse electric spark discharge between the electrode wire and the workpiece causes the metal to melt or vaporize, thereby forming a cut to achieve the purpose of cutting the material. When performing linear cutting, it is often necessary to slice the workpiece. When slicing the workpiece, a positioning fixture is required to clamp and position the workpiece.

[0003] The utility model with the existing application number 202320338012.X discloses a wire cutting positioning fixture, which belongs to the field of fixture technology, including a base, and two groups of positioning structures are symmetrically installed on the upper end of the base, each group of the positioning structures includes a lower positioning seat and an upper positioning seat, and the lower positioning seat and the upper positioning seat have the same structure. In the utility model, when encountering a cylindrical workpiece, the length of the positioning column on the upper positioning seat and the lower positioning seat entering the mounting shell will be different. Some positioning columns will continue to move after entering the mounting shell to a depth that reaches the marking line. At this time, the positioning column will push the support sleeve to move in the sleeve. When the workpiece is clamped stably, the coil sleeve is energized to make the positioning column generate magnetism so that the limit head is extended again and inserted into the limit groove to limit the support sleeve. In this way, the positioning structure can clamp the cylindrical workpiece, and in this way, the arc-shaped workpiece can also be clamped, so that the positioning fixture can adapt to different working environments and improve the reliability of the positioning fixture.

[0004] Based on the above, after the workpiece is clamped using a positioning fixture, the cutting wire generates a large amount of heat when cutting the workpiece, resulting in the cut portion of the workpiece needing to be cooled before the worker can remove it from the positioning fixture, which affects the processing efficiency of the workpiece. Utility Model Content

[0005] In order to solve the above technical problems at least to a certain extent, the utility model provides a wire cutting positioning fixture.

[0006] The purpose and effect of the wire cutting positioning fixture of the utility model are achieved by the following specific technical means:

[0007] A wire cutting positioning fixture comprises a positioning connection base, a connection slide block, a pick-up support frame, a clamping drive lead screw, a pick-up mounting plate, a plurality of clamping mechanisms and a pick-up drive mechanism;

[0008] The connecting sliders are provided in two groups, and the two groups of connecting sliders are respectively fixedly connected to the front and rear ends below the positioning connecting base;

[0009] The picking support frame is provided with two groups in total, and the two groups of picking support frames are respectively fixedly connected to the left and right sides of the upper rear end of the positioning connection base, and the two groups of picking support frames are both C-shaped structures;

[0010] The clamping drive screw is rotatably connected to the inner side of the positioning connection base;

[0011] The taking and mounting plate is rotatably connected to the inner side of the taking and supporting frame;

[0012] The multiple groups of clamping mechanisms are arranged on the inner side of the positioning and connecting base;

[0013] The taking drive mechanism is arranged on the outer side of the taking installation plate.

[0014] Further, the plurality of clamping mechanisms include: a clamping guide rod, a first clamping member and a second clamping member;

[0015] The clamping guide rods are provided in two groups, and the two groups of clamping guide rods are respectively fixedly connected to the inner side of the positioning connection base;

[0016] The first clamping member is slidably connected to the outer periphery of the clamping guide rod, and the first clamping member is threadedly connected to the clamping drive screw;

[0017] The second clamping members are provided in multiple groups, and the multiple groups of second clamping members are respectively slidably connected to the outer periphery of the clamping guide rod, and the multiple groups of second clamping members are all arranged on the left side of the first clamping member.

[0018] Furthermore, the plurality of clamping mechanisms further include: a clamping transmission rod;

[0019] The clamping transmission rods are provided with multiple groups, which are hinged to each other and together form a scissor-type mechanism, wherein the rotating shaft of the leftmost group of clamping transmission rods is rotatably connected to the upper left side of the positioning connection base, and the rotating shafts of the middle multiple groups of clamping transmission rods are rotatably connected to the lower ends of the first clamping member and the second clamping member.

[0020] Further, the taking drive mechanism includes: a taking connecting piece and an absorption fan;

[0021] The taking connecting piece is fixedly connected to the upper rear end of the taking installation plate, and the rear end of the taking connecting piece is connected to the outside through a hose;

[0022] The absorption fan is a negative pressure fan structure, and the absorption fan is fixedly connected to the inside of the taking connecting piece.

[0023] Furthermore, the pick-up drive mechanism also includes: a pick-up fixing member, a pick-up contact member and a pick-up connecting spring;

[0024] The pick-up fixing member is a rectangular frame-shaped structure, the pick-up fixing member is fixedly connected to the lower end of the pick-up mounting plate, and the pick-up fixing member is connected to the pick-up connecting member;

[0025] The pick-up contact piece is a rectangular frame-shaped rubber structure, and the pick-up contact piece is slidably connected to the inner side of the pick-up fixing piece;

[0026] The two groups of taking connection springs are arranged in total, and the two groups of taking connection springs are respectively fixedly connected to the left and right sides of the lower end of the taking installation plate, and the lower ends of the two groups of taking connection springs are fixedly connected to the taking contact piece.

[0027] Furthermore, the pick-up drive mechanism also includes: a pick-up reset spring and a pick-up trigger rod;

[0028] The pick-up reset spring is a right-angle spring structure, and the pick-up reset spring is fixedly connected to the left end of the rotating shaft of the pick-up mounting plate;

[0029] There are two groups of picking trigger rods, which are respectively fixedly connected to the left and right sides below the picking installation plate, and both groups of picking trigger rods are ceramic rod structures.

[0030] Compared with the prior art, the utility model has the following beneficial effects:

[0031] The utility model arranges multiple groups of clamping mechanisms, places the workpiece on the inner side of the second clamping member and the first clamping member, rotates the clamping driving screw, and the rotation of the clamping driving screw drives the first clamping member to move leftward. The leftward movement of the first clamping member drives the second clamping member to move leftward under the action of the clamping transmission rod. At this time, simultaneous clamping of multiple groups of workpieces is achieved, which facilitates the subsequent unified linear cutting of the workpieces and improves the cutting efficiency of the workpieces.

[0032] The utility model adopts the setting of the picking drive mechanism, the cutting line squeezes the picking trigger rod, the picking trigger rod is squeezed and rotated, the picking trigger rod rotates and drives the picking installation plate to rotate, the picking installation plate rotates and drives the picking contact piece to flip forward and contact the cut workpiece, turn on the absorption fan, the absorption fan generates negative pressure to achieve the adsorption of the slice, when the cutting line passes through the picking trigger rod, the picking trigger rod is reset under the action of the picking reset spring, and when the cutting line moves forward, the cutting line touches the picking trigger rod again, the picking trigger rod is squeezed and rotated forward, the picking trigger rod rotates forward and drives the picking installation plate to reverse, the reversal of the picking installation plate makes it convenient for workers to pick up the cut workpiece, realizes the unified picking of the workpiece, avoids scalding the workers by the workpieces that have just been cut, realizes the protection of the workers, and improves the processing efficiency of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0034] Figure 2 It is a schematic diagram of the structure of the trigger lever of the utility model.

[0035] Figure 3 It is a schematic diagram of the structure of multiple clamping mechanisms of the utility model.

[0036] Figure 4 It is a structural schematic diagram of the taking drive mechanism of the utility model.

[0037] Figure 5 It is a schematic cross-sectional structure diagram of the taking drive mechanism of the utility model.

[0038] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0039] 1. Position the connecting base; 101. Clamp the guide rod; 102. The first clamping piece; 103. The second clamping piece; 104. Clamp the transmission rod; 2. Connect the slider; 3. Take the support frame; 4. Clamp the drive screw; 5. Take the mounting plate; 501. Take the connecting piece; 502. Absorption fan; 503. Take the fixing piece; 504. Take the contact piece; 505. Take the connecting spring; 506. Take the reset spring; 507. Take the trigger rod. DETAILED DESCRIPTION

[0040] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0041] Embodiment 1:

[0042] like Figures 1 to 3 As shown:

[0043] This embodiment provides a wire cutting positioning fixture, including a positioning connection base 1, a connection slider 2, a pick-up support frame 3, a clamping drive screw 4, a pick-up mounting plate 5 and a plurality of clamping mechanisms; two groups of connection sliders 2 are provided, and the two groups of connection sliders 2 are respectively fixedly connected to the front and rear ends below the positioning connection base 1;

[0044] There are two groups of taking support frames 3, which are respectively fixedly connected to the left and right sides of the upper rear end of the positioning connection base 1, and both groups of taking support frames 3 are C-shaped structures;

[0045] The clamping driving screw 4 is rotatably connected to the inner side of the positioning connection base 1;

[0046] The taking and mounting plate 5 is rotatably connected to the inner side of the taking and supporting frame 3;

[0047] A plurality of clamping mechanisms are arranged on the inner side of the positioning and connecting base 1 .

[0048] The multiple clamping mechanisms include: a clamping guide rod 101, a first clamping member 102, a second clamping member 103 and a clamping transmission rod 104;

[0049] There are two groups of clamping guide rods 101, and the two groups of clamping guide rods 101 are respectively fixedly connected to the inner side of the positioning connection base 1;

[0050] The first clamping member 102 is slidably connected to the outer periphery of the clamping guide rod 101, and the first clamping member 102 is threadedly connected to the clamping driving screw 4;

[0051] The second clamping members 103 are provided in multiple groups, and the multiple groups of second clamping members 103 are respectively slidably connected to the outer periphery of the clamping guide rod 101, and the multiple groups of second clamping members 103 are all arranged on the left side of the first clamping member 102;

[0052] There are multiple groups of clamping transmission rods 104, which are hinged to each other and together form a scissor-type mechanism, wherein the rotating shaft of the leftmost group of clamping transmission rods 104 is rotatably connected to the upper left side of the positioning connection base 1, and the rotating shafts of the middle multiple groups of clamping transmission rods 104 are rotatably connected to the lower ends of the first clamping member 102 and the second clamping member 103.

[0053] During use, when the workpiece needs to be clamped, the workpiece is placed on the inner side of the second clamping member 103 and the first clamping member 102, and the clamping drive screw 4 is rotated. The clamping drive screw 4 rotates to drive the first clamping member 102 to move to the left. The first clamping member 102 moves to the left and drives the second clamping member 103 to move to the left under the action of the clamping transmission rod 104. At this time, multiple groups of workpieces can be clamped simultaneously, which facilitates the subsequent unified linear cutting of the workpieces and improves the cutting efficiency of the workpieces.

[0054] Embodiment 2:

[0055] The utility model provides a wire cutting positioning fixture, based on the first embodiment, such as Figures 1 to 5 As shown, it also includes a take-up drive mechanism, which is arranged on the outside of the take-up mounting plate 5.

[0056] The taking driving mechanism includes: a taking connecting piece 501, an absorption fan 502, a taking fixing piece 503, a taking contact piece 504, a taking connecting spring 505, a taking reset spring 506 and a taking trigger rod 507;

[0057] The taking connecting piece 501 is fixedly connected to the upper rear end of the taking installation plate 5, and the rear end of the taking connecting piece 501 is connected to the outside through a hose;

[0058] The absorption fan 502 is a negative pressure fan structure, and the absorption fan 502 is fixedly connected to the inside of the taking connecting piece 501;

[0059] The pick-up fixing member 503 is a rectangular frame structure, and the pick-up fixing member 503 is fixedly connected to the lower end of the pick-up mounting plate 5, and the pick-up fixing member 503 is connected to the pick-up connecting member 501;

[0060] The pick-up contact member 504 is a rectangular frame-shaped rubber structure, and the pick-up contact member 504 is slidably connected to the inner side of the pick-up fixing member 503;

[0061] There are two groups of pick-up connection springs 505, which are respectively fixedly connected to the left and right sides of the lower end of the pick-up mounting plate 5, and the lower ends of the two groups of pick-up connection springs 505 are fixedly connected to the pick-up contact piece 504;

[0062] The pick-up reset spring 506 is a right-angle spring structure, and the pick-up reset spring 506 is fixedly connected to the left end of the rotating shaft of the pick-up mounting plate 5;

[0063] There are two groups of taking trigger rods 507 , which are respectively fixedly connected to the left and right sides below the taking installation plate 5 . Both groups of taking trigger rods 507 are ceramic rod structures.

[0064] When the cutting line finishes cutting the workpiece, the cutting line continues to move backward, and the cutting line squeezes the picking trigger rod 507, and the picking trigger rod 507 is squeezed and rotated. The picking trigger rod 507 rotates and drives the picking mounting plate 5 to rotate. The picking mounting plate 5 rotates and drives the picking contact piece 504 to flip forward and contact the cut workpiece, and turn on the absorption fan 502. The absorption fan 502 generates negative pressure to achieve the adsorption of the slice. When the cutting line passes the picking trigger rod 507, the picking trigger rod 507 is reset under the action of the picking reset spring 506. When the cutting line moves forward, the cutting line touches the picking trigger rod 507 again, and the picking trigger rod 507 is squeezed and rotated forward. The picking trigger rod 507 rotates forward and drives the picking mounting plate 5 to reverse. The reversal of the picking mounting plate 5 makes it convenient for workers to pick up the cut workpiece and improves the cutting efficiency of the workpiece.

Claims

1. A wire cutting positioning fixture, comprising a positioning connection base (1), a connection slider (2), a pick-up support frame (3), a clamping drive screw (4), a pick-up mounting plate (5), a plurality of clamping mechanisms and a pick-up drive mechanism; characterized in that: The connecting slide blocks (2) are provided in two groups, and the two groups of connecting slide blocks (2) are respectively fixedly connected to the front and rear ends of the lower part of the positioning connecting base (1); the picking support frames (3) are provided in two groups, and the two groups of picking support frames (3) are respectively fixedly connected to the left and right sides of the upper rear end of the positioning connecting base (1); the clamping drive screw (4) is rotatably connected to the inner side of the positioning connecting base (1); the picking installation plate (5) is rotatably connected to the inner side of the picking support frame (3); the multiple groups of clamping mechanisms are arranged on the inner side of the positioning connecting base (1); and the picking drive mechanism is arranged on the outer side of the picking installation plate (5).

2. The wire cutting positioning fixture according to claim 1, characterized in that: The multiple groups of clamping mechanisms include: a clamping guide rod (101), a first clamping member (102) and a second clamping member (103); the clamping guide rod (101) is provided with two groups in total, and the two groups of clamping guide rods (101) are respectively fixedly connected to the inner side of the positioning connection base (1); the first clamping member (102) is slidably connected to the outer periphery of the clamping guide rod (101), and the first clamping member (102) is threadedly connected to the clamping drive screw (4); the second clamping member (103) is provided with multiple groups, and the multiple groups of second clamping members (103) are respectively slidably connected to the outer periphery of the clamping guide rod (101), and the multiple groups of second clamping members (103) are all arranged on the left side of the first clamping member (102).

3. The wire cutting positioning fixture according to claim 2, characterized in that: The multiple groups of clamping mechanisms also include: clamping transmission rods (104); the clamping transmission rods (104) are provided in multiple groups, the multiple groups of clamping transmission rods (104) are hinged to each other, and the multiple groups of clamping transmission rods (104) together form a scissor-fork mechanism, wherein the rotating shaft of the leftmost group of clamping transmission rods (104) is rotatably connected to the upper left side of the positioning connection base (1), and the rotating shafts of the middle multiple groups of clamping transmission rods (104) are rotatably connected to the lower ends of the first clamping member (102) and the second clamping member (103).

4. The wire cutting positioning fixture according to any one of claims 1 to 3, characterized in that: The taking drive mechanism comprises: a taking connecting piece (501) and an absorption fan (502); the taking connecting piece (501) is fixedly connected to the upper rear end of the taking installation plate (5), and the rear end of the taking connecting piece (501) is connected to the outside through a hose; the absorption fan (502) is fixedly connected inside the taking connecting piece (501).

5. The wire cutting positioning fixture according to claim 4, characterized in that: The pick-up drive mechanism further comprises: a pick-up fixing member (503), a pick-up contact member (504) and a pick-up connecting spring (505); the pick-up fixing member (503) is fixedly connected to the lower end of the pick-up mounting plate (5), and the pick-up fixing member (503) is connected to the pick-up connecting member (501); the pick-up contact member (504) is a rectangular frame-shaped rubber structure, and the pick-up contact member (504) is slidably connected to the inner side of the pick-up fixing member (503); two groups of the pick-up connecting springs (505) are provided, and the two groups of the pick-up connecting springs (505) are respectively fixedly connected to the left and right sides of the lower end of the pick-up mounting plate (5), and the lower ends of the two groups of the pick-up connecting springs (505) are fixedly connected to the pick-up contact member (504).

6. The wire cutting positioning fixture according to claim 5, characterized in that: The picking drive mechanism further comprises: a picking reset spring (506) and a picking trigger rod (507); the picking reset spring (506) is a right-angle spring structure, and the picking reset spring (506) is fixedly connected to the left end of the rotating shaft of the picking installation plate (5); two groups of picking trigger rods (507) are provided, and the two groups of picking trigger rods (507) are respectively fixedly connected to the left and right sides below the picking installation plate (5).

7. The wire cutting positioning fixture according to claim 6, characterized in that: Both sets of trigger rods (507) are ceramic rod structures.

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