Linear cutting workpiece clamp

Abstract

The utility model relates to the technical field of workpiece clamping, in particular to a linear cutting workpiece clamp which comprises a supporting mechanism and a clamping mechanism. The clamping mechanism comprises two groups of clamping assemblies which are symmetrically arranged; the clamping assembly comprises a mounting assembly, the mounting assembly is in transmission connection with a clamping piece, the clamping piece comprises an abutting plate, a positioning block is fixedly mounted in the middle of the abutting face of the abutting plate, a V-shaped positioning groove is formed in the middle of the side face, away from the abutting plate, of the positioning block, and a supporting plate is fixedly mounted at the bottom end of the positioning block; according to the utility model, the purpose of stably clamping and supporting the cylindrical workpiece can be achieved through the supporting mechanism and the matched arrangement of the mounting assembly and the clamping piece in the clamping mechanism, and the workpiece can be supported at the edge position of the bottom surface of the workpiece through the arrangement of the supporting plate, so that a larger area is reserved for the cutting track of the workpiece; and interference with a wiring track is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece clamping, in particular to a wire cutting workpiece fixture. Background Technique

[0002] Wire cutting is a processing method that uses electric pulses to generate high-temperature and high-energy electric sparks to cut conductive materials into the required shapes. In wire cutting, a discharge channel is formed between the workpiece and the electrode through a working liquid (usually deionized water removed). Through continuous electric pulse discharges, the materials on the surface of the workpiece are evaporated, melted or oxidized, and finally cut into the required shapes. When performing wire cutting processing, selecting a suitable workpiece clamping method and strictly clamping the workpiece according to specifications and requirements are of great significance for ensuring cutting quality, improving work efficiency and ensuring operation safety.

[0003] In the prior art, a patent with the application number CN202321680742.4 provides a clamping tooling for wire cutting of cylindrical workpieces. The clamping tooling is installed on the workbench surface of a wire cutting machine tool. The clamping tooling includes a seat plate, a support plate and a clamping component. The seat plate is symmetrically installed on the workbench surface through bolts. The support plates are symmetrically arranged and slidably installed on the seat plate. The seat plate and the support plate are locked through bolts. The two clamping components are symmetrically arranged and respectively installed on the two support plates, and a clamping cavity for the cylindrical workpiece is formed between the two clamping components. This clamping tooling can be adapted to clamping toolings for cylindrical workpieces of various specifications.

[0004] However, the above technical solution still has the following deficiencies in the use process:

[0005] According to its content, a support rod is arranged on the workbench surface to support the workpiece. In the actual wire cutting process, the cutting wire will cut along a preset trajectory in the plane. Therefore, during the wire walking process, the support rod under the workpiece is prone to interfere with the wire walking trajectory, resulting in the support rod being easily cut off during the cutting process, thus losing the vertical support effect on the workpiece, and thus the workpiece may be displaced in the vertical direction, easily causing the cutting wire to break. Content of the Utility Model

[0006] The purpose of the utility model is to provide a wire cutting workpiece fixture to solve the problems raised in the above background technique.

[0007] The purpose of the utility model can be realized by the following technical solutions:

[0008] A wire cutting workpiece clamp comprises a supporting mechanism and a clamping mechanism, wherein the supporting mechanism comprises two supporting bars 1 fixedly mounted on the wire cutting work surface, the two supporting bars 1 being arranged in parallel, a slide rail being fixedly mounted on the top surface of the supporting bar 1, a V-shaped groove being provided on the outer surface of the slide rail, two supporting bars 2 being arranged in parallel being provided between the two supporting bars 1, a plurality of positioning holes being provided in an array along the length direction of the supporting bar 2 on the top surface, the two ends of the bottom surface of the supporting bar 2 being slidably mounted on the top surface of the corresponding supporting bar 1 through the two slide rails respectively, and locking bolts used in conjunction with the V-shaped grooves being threadedly mounted on both ends of the supporting bar 2;

[0009] The clamping mechanism comprises two groups of clamping components, the two groups of clamping components are respectively fixedly mounted on the top surfaces of the two support bars 2 by bolts matching the positioning holes, and the two groups of clamping components are symmetrically arranged with each other;

[0010] The clamping assembly includes an installation assembly that is detachably fixedly installed on the top surface of the second support bar, the installation assembly is transmission-connected with a clamping member, the clamping member includes a contact plate, a positioning block is fixedly installed in the middle position of the contact surface of the contact plate, a V-shaped positioning groove is provided in the middle position of the side of the positioning block away from the contact plate, and a support plate is fixedly installed at the bottom end of the positioning block.

[0011] Further, the mounting assembly includes a base, and protrusions are fixedly connected to both sides of the base, and a through hole is opened on the top surface of the protrusion, the diameter of the through hole is equal to the diameter of the positioning hole, and the distance between the two through holes is equal to the distance between two adjacent positioning holes;

[0012] Mounting seats are fixedly installed at both ends of the top surface of the base, a screw rod 1 is rotatably installed between the two mounting seats, and two sliding rods 1 symmetrically distributed about the screw rod 1 are also fixedly installed between the two mounting seats, one end of the screw rod 1 close to the outer side of the support bar 2 rotates through the mounting seat at the corresponding position, and a hand wheel 1 is fixedly installed;

[0013] A sliding seat is installed with a through-threaded thread on the outer periphery of the screw rod 1, and the sliding seat is slidably connected with the two sliding rods 1. A mounting plate is fixedly installed on the top of the sliding seat, and the resistance plate is fixedly installed on one end of the mounting plate close to the inner side of the supporting bar 2.

[0014] Furthermore, a reinforcement component is installed on the contact plate, and the reinforcement component includes two screws and two sliding rods. The two sliding rods are slidably installed at both ends of the side of the contact plate, and one end of the two sliding rods close to the outer side of the supporting strip is commonly fixedly connected to the strip plate. A screw is threadedly installed at the middle position of the side of the strip plate, and the end of the screw close to the contact plate is rotatably connected to the contact plate, and a hand wheel is fixedly installed at the other end of the screw.

[0015] Further, an installation groove is formed at one end of the second sliding rod away from the strip plate, and a pin shaft perpendicular to the top surface of the second support strip is fixedly installed between the top and bottom ends of the installation groove;

[0016] A convex plate is rotatably installed around the pin shaft in a damping manner. One end of the convex plate away from the pin shaft extends to the outside of the installation groove and is fixedly installed with a clamping plate. A support block is fixedly installed at the bottom end of the clamping plate, and the bottom surface of the support block is flush with the top surface of the support plate.

[0017] Further, a pressing component is arranged on the top surface of the abutting plate. The pressing component includes a third threaded rod and a third sliding rod;

[0018] The third threaded rod is rotatably connected to the center position of the top surface of the abutting plate, and two third sliding rods symmetrically arranged about the third threaded rod are fixedly connected to the top surface of the abutting plate. The top ends of the two third sliding rods are fixedly connected together with a connecting block. The top end of the third threaded rod threadedly penetrates through the connecting block and is fixedly installed with a third handwheel;

[0019] A lifting block is threadedly installed through the periphery of the third threaded rod, and the lifting block is slidably connected through the two third sliding rods. One side of the lifting block close to the inner side of the second support strip is fixedly installed with a pressing plate, and the side surface of the pressing plate away from the lifting block is flush with the side surface of the support plate away from the abutting plate.

[0020] The beneficial effects of the present utility model:

[0021] 1. In the present utility model, through the cooperation of the support mechanism and the installation components and clamping members in the clamping mechanism, the purpose of stably clamping and supporting the cylindrical workpiece can be achieved. And through the setting of the support plate, the workpiece can be supported at the edge position of the bottom surface of the workpiece, leaving a large area for the cutting trajectory of the workpiece, effectively solving the problem in the prior art that when using a supporting rod for support, it is easy to interfere with the wire routing trajectory, resulting in the supporting rod being easily cut off during the cutting process, thus losing the vertical supporting effect on the workpiece, and the workpiece may displace in the vertical direction, easily causing the cutting wire to break.

[0022] 2. When the diameter of the workpiece is relatively large, there may be a risk of instability when only supported by the support plate and clamped by the positioning block. At this time, by rotating the second screw rod with the second handwheel, the rotation of the second screw rod drives the mounting seat to move towards the direction close to the abutting plate, thereby driving the two second sliding rods to move towards the direction close to the workpiece until the second sliding rods are in pressing contact with the periphery of the workpiece. Through the pressing contact of the two second sliding rods on the periphery of the workpiece, the workpiece can be further limited and clamped, thereby improving the clamping stability of the workpiece.

[0023] 3. After the workpiece is clamped and installed, the present utility model rotates the threaded rod three by turning the handwheel three, so that the lifting block drives the pressing plate to descend until the bottom surface of the pressing plate is in pressing contact with the top surface of the workpiece, thereby pressing the workpiece tightly between the pressing plate and the support plate, improving the stability of the workpiece in the vertical direction, and further improving the installation stability of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is a three-dimensional schematic diagram of the overall structure of the present utility model;

[0026] Figure 2 is Figure 1 an enlarged view of part A in

[0027] Figure 3 is a three-dimensional schematic diagram of the clamping assembly in the present utility model;

[0028] Figure 4 is Figure 3 a three-dimensional schematic diagram from another angle;

[0029] Figure 5 is Figure 5 an enlarged view of part B in

[0030] Among them, the reference numerals are as follows:

[0031] 1 - first support bar, 2 - slide rail, 3 - second support bar, 4 - positioning hole, 5 - clamping assembly, 6 - V-shaped groove, 7 - locking bolt, 8 - base, 9 - convex block, 10 - mounting seat, 11 - first slide bar, 12 - first screw rod, 13 - slide seat, 14 - first handwheel, 15 - mounting plate, 16 - abutting plate, 17 - second slide bar, 18 - second screw rod, 19 - strip plate, 20 - second handwheel, 21 - third slide bar, 22 - third screw rod, 23 - lifting block, 24 - connecting block, 25 - third handwheel, 26 - pressing plate, 27 - support plate, 28 - positioning block, 29 - V-shaped positioning groove, 30 - mounting groove, 31 - clamping plate, 32 - support block, 33 - convex plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Embodiment 1:

[0034] See also Figures 1 to 4 In the embodiment of the utility model, a wire cutting workpiece clamp includes a supporting mechanism and a clamping mechanism, the supporting mechanism includes two supporting bars 1 fixedly installed on the wire cutting work surface, the two supporting bars 1 are arranged in parallel, a slide rail 2 is fixedly installed on the top surface of the supporting bar 1, a V-shaped groove 6 is provided on the outer surface of the slide rail 2, two supporting bars 2 3 arranged in parallel are arranged between the two supporting bars 1, a plurality of positioning holes 4 are arranged in an array along the length direction of the supporting bar 2 3 on the top surface, the two ends of the bottom surface of the supporting bar 2 3 are respectively slidably installed on the top surface of the corresponding supporting bar 1 through the two slide rails 2, and the two ends of the supporting bar 2 3 are threadedly installed with locking bolts 7 used in conjunction with the V-shaped groove 6;

[0035] The clamping mechanism includes two sets of clamping components 5, which are respectively fixedly mounted on the top surfaces of the two support bars 3 by bolts and positioning holes 4, and the two sets of clamping components 5 are symmetrically arranged with each other;

[0036] The clamping assembly 5 includes a mounting assembly that is detachably fixedly mounted on the top surface of the support bar 23, the mounting assembly is transmission-connected with a clamping member, the clamping member includes a contact plate 16, a positioning block 28 is fixedly mounted in the middle position of the contact surface of the contact plate 16, a V-shaped positioning groove 29 is provided in the middle position of the side of the positioning block 28 away from the contact plate 16, and a support plate 27 is fixedly mounted at the bottom end of the positioning block 28.

[0037] The mounting assembly includes a base 8, and protrusions 9 are fixedly connected to both sides of the base 8. A through hole is opened on the top surface of the protrusion 9. The diameter of the through hole is equal to the diameter of the positioning hole 4, and the distance between the two through holes is equal to the distance between two adjacent positioning holes 4.

[0038] Mounting seats 10 are fixedly installed at both ends of the top surface of the base 8, a screw rod 12 is rotatably installed between the two mounting seats 10, and two sliding rods 11 symmetrically distributed about the screw rod 12 are also fixedly installed between the two mounting seats 10, one end of the screw rod 12 close to the outer side of the support bar 23 rotates through the mounting seat 10 at the corresponding position, and a hand wheel 14 is fixedly installed;

[0039] A sliding seat 13 is installed with a threaded penetration on the outer periphery of the screw rod 12, and the sliding seat 13 is slidably connected with the two sliding rods 11. A mounting plate 15 is fixedly installed on the top of the sliding seat 13, and a resistance plate 16 is fixedly installed on one end of the mounting plate 15 close to the inner side of the support bar 2 3.

[0040] Among them, a reinforcement component is installed on the contact plate 16, and the reinforcement component includes a screw rod 18 and a slide rod 17. The slide rods 17 are slidably installed through both ends of the side of the contact plate 16. The two slide rods 17 are fixedly connected to a strip plate 19 at one end close to the outer side of the support strip 23. A screw rod 18 is threadedly installed through the middle position of the side of the strip plate 19. The end of the screw rod 18 close to the contact plate 16 is rotatably connected to the contact plate 16, and the other end of the screw rod 18 is fixedly installed with a hand wheel 20.

[0041] When the utility model is in use:

[0042] First, adjust the distance between the two support bars 23 according to the diameter of the workpiece. Specifically, loosen the locking bolt 7 so that the support bar 23 and the slide rail 2 can slide, and then slide the two support bars 23 so that the distance between the two support bars 23 is adapted to the diameter of the workpiece, specifically, the diameter of the workpiece is larger than the distance between the two support plates 27 and smaller than the distance between the two positioning blocks 28; then place the workpiece between the two groups of clamping assemblies 5 so that the bottom edge of the workpiece is located on the top surface of the support plate 27, and then in one group of clamping assemblies 5, turn the screw 12 by means of the hand wheel 14 to drive the slide 13 to move toward the workpiece, so that the workpiece is clamped between the two positioning blocks 28. At the same time, cooperate with the setting of the V-shaped positioning groove 29 to achieve a relatively stable limit on the workpiece to avoid the workpiece from being easily displaced in the plane.

[0043] Therefore, the utility model can achieve the purpose of stably clamping and supporting the cylindrical workpiece through the coordinated arrangement of the mounting components and the clamping parts in the support mechanism and the clamping mechanism, and can support the workpiece at the edge of the bottom surface of the workpiece through the arrangement of the support plate 27, reserving a larger area for the workpiece cutting trajectory, and effectively solves the problem in the prior art that when using the support rod support, it is easy to interfere with the routing trajectory, resulting in the support rod being easily cut off during the cutting process, thereby losing the vertical support effect on the workpiece, which may cause the workpiece to be displaced in the vertical direction, and easily cause the cutting wire to break.

[0044] Furthermore, in the utility model, multiple groups of clamping mechanisms can be installed on the two support bars 2 3 at the same time, and multiple workpieces can be clamped and installed in advance, thereby providing convenience for processing operations and having better practicality.

[0045] When the diameter of the workpiece is relatively large, there may be a risk of instability when only supported by the support plate 27 and clamped by the positioning block 28. At this time, by rotating the second screw rod 18 through the second handwheel 20, the rotation of the second screw rod 18 drives the mounting seat 10 to move towards the direction close to the contact plate 16, thereby driving the two second slide rods 17 to move towards the workpiece at the same time until the second slide rods 17 are in extrusion contact with the periphery of the workpiece. Through the extrusion contact of the two second slide rods 17 on the periphery of the workpiece, the workpiece can be further limited and clamped, thereby improving the clamping stability of the workpiece.

[0046] Embodiment 2:

[0047] Please refer to Figure 4 and Figure 5 Based on Embodiment 1, an installation groove 30 is formed at one end of the second slide rod 17 away from the strip plate 19. A pin shaft perpendicular to the top surface of the second support strip 3 is fixedly installed between the top and bottom ends of the installation groove 30.

[0048] A convex plate 33 is rotatably installed around the pin shaft in a damping manner. One end of the convex plate 33 away from the pin shaft extends to the outside of the installation groove 30 and is fixedly installed with a clamping plate 31. A support block 32 is fixedly installed at the bottom end of the clamping plate 31, and the bottom surface of the support block 32 is flush with the top surface of the support plate 27.

[0049] When it is necessary to further clamp the workpiece stably, one side of the clamping plate 31 away from the convex plate 33 is in extrusion contact with the periphery of the workpiece, the top surface of the support block 32 is in contact with the bottom surface of the workpiece, and the convex plate 33 rotates adaptively with the pin shaft according to the peripheral dimension of the workpiece, so that the side surface of the clamping plate 31 away from the convex plate 33 is in a tangent state with the periphery of the workpiece. Through this setting, the clamping force direction between the clamping plate 31 and the workpiece intersects with the axis of the workpiece, which is beneficial to ensuring the clamping stability of the workpiece. At the same time, the support of the support block 32 to the workpiece increases the total area of the bottom surface support of the workpiece and also improves the support stability of the workpiece. It should be noted that the diameter of the workpiece needs to be greater than the distance between the axes of the two second slide rods 17.

[0050] Embodiment 3:

[0051] Please refer to Figure 3 Based on Embodiment 1, a pressing component is arranged on the top surface of the contact plate 16. The pressing component includes a third screw rod 22 and a third slide rod 21;

[0052] The third screw rod 22 is rotatably connected to the center position of the top surface of the contact plate 16, and two third slide rods 21 symmetrically arranged with respect to the third screw rod 22 are fixedly connected to the top surface of the contact plate 16. The top ends of the two third slide rods 21 are fixedly connected to a connecting block 24 together. The top end of the third screw rod 22 threadedly penetrates through the connecting block 24 and is fixedly installed with a third handwheel 25;

[0053] A lifting block 23 is installed on the periphery of the threaded rod three 22 through threading, and the lifting block 23 is slidably connected to the two slide rods three 21 through threading. A pressing plate 26 is fixedly installed on one side of the lifting block 23 close to the inner side of the support bar two 3, and the side surface of the pressing plate 26 away from the lifting block 23 is flush with the side surface of the support plate 27 away from the contact plate 16.

[0054] After the workpiece is clamped and installed, the threaded rod three 22 is rotated by the handwheel three 25, so that the lifting block 23 drives the pressing plate 26 to descend until the bottom surface of the pressing plate 26 is in pressing contact with the top surface of the workpiece, thereby pressing the workpiece between the pressing plate 26 and the support plate 27, improving the stability of the workpiece in the vertical direction, and further improving the installation stability of the workpiece.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A wire cutting workpiece fixture, comprising a support mechanism and a clamping mechanism, characterized in that, The support mechanism comprises two support bars (1) fixedly mounted on the wire cutting work surface, the two support bars (1) being arranged in parallel, a slide rail (2) being fixedly mounted on the top surface of the support bar (1), a V-shaped groove (6) being provided on the outer surface of the slide rail (2), two support bars (3) being arranged in parallel between the two support bars (1), a plurality of positioning holes (4) being provided in an array along the length direction of the support bar (3) on the top surface, the two ends of the bottom surface of the support bar (3) being slidably mounted on the top surface of the corresponding support bar (1) through the two slide rails (2), and locking bolts (7) used in conjunction with the V-shaped groove (6) being threadedly mounted on both ends of the support bar (3); The clamping mechanism comprises two groups of clamping assemblies (5), the two groups of clamping assemblies (5) are respectively fixedly mounted on the top surfaces of the two support bars (3) by means of bolts cooperating with the positioning holes (4), and the two groups of clamping assemblies (5) are symmetrically arranged with respect to each other; The clamping assembly (5) comprises a mounting assembly which is detachably fixedly mounted on the top surface of the second support bar (3), the mounting assembly being drivingly connected to a clamping member, the clamping member comprising a contact plate (16), a positioning block (28) being fixedly mounted in the middle of the contact surface of the contact plate (16), a V-shaped positioning groove (29) being provided in the middle of a side surface of the positioning block (28) away from the contact plate (16), and a support plate (27) being fixedly mounted at the bottom end of the positioning block (28).

2. The wire cutting workpiece fixture according to claim 1, wherein The mounting assembly comprises a base (8), and protrusions (9) are fixedly connected to both sides of the base (8), and a through hole is formed on the top surface of the protrusion (9), the diameter of the through hole is equal to the diameter of the positioning hole (4), and the distance between the two through holes is equal to the distance between two adjacent positioning holes (4); Mounting seats (10) are fixedly installed at both ends of the top surface of the base (8), a screw rod (12) is rotatably installed between the two mounting seats (10), and two sliding rods (11) symmetrically distributed about the screw rod (12) are also fixedly installed between the two mounting seats (10), one end of the screw rod (12) close to the outer side of the second support bar (3) is rotatably inserted through the mounting seat (10) at the corresponding position, and a hand wheel (14) is fixedly installed; A sliding seat (13) is installed with a threaded through-hole on the outer periphery of the screw rod one (12), and the sliding seat (13) is slidably connected with the two sliding rods one (11) in a through-hole manner. A mounting plate (15) is fixedly installed on the top of the sliding seat (13), and the abutment plate (16) is fixedly installed on one end of the mounting plate (15) close to the inner side of the support bar two (3).

3. The wire cutting workpiece fixture according to claim 1, characterized in that, The contact plate (16) is provided with a reinforcement component, the reinforcement component comprising two screw rods (18) and two slide rods (17), the two slide rods (17) are slidably mounted through both ends of the side surface of the contact plate (16), one end of the two slide rods (17) close to the outer side of the two support strips (3) is fixedly connected to a strip plate (19), the middle position of the side surface of the strip plate (19) is threadedly mounted with two screw rods (18), one end of the two screw rods (18) close to the contact plate (16) is rotatably connected to the contact plate (16), and the other end of the two screw rods (18) is fixedly mounted with two hand wheels (20).

4. The wire cutting workpiece fixture according to claim 3, characterized in that, An installation groove (30) is formed at one end of the second slide bar (17) away from the strip plate (19), and a pin shaft perpendicular to the top surface of the second support bar (3) is fixedly installed between the top and bottom ends of the installation groove (30); A convex plate (33) is mounted on the outer periphery of the pin shaft in a damped rotation manner. The convex plate (33) extends to the outside of the mounting groove (30) at one end away from the pin shaft and is fixedly mounted with a clamping plate (31). A support block (32) is fixedly mounted at the bottom end of the clamping plate (31). The bottom surface of the support block (32) is flush with the top surface of the support plate (27).

5. The wire cutting workpiece fixture according to claim 1, characterized in that, A clamping assembly is provided on the top surface of the contact plate (16), and the clamping assembly comprises a threaded rod three (22) and a sliding rod three (21); The threaded rod three (22) is rotatably connected to the center position of the top surface of the contact plate (16), and the top surface of the contact plate (16) is fixedly connected to two sliding rods three (21) symmetrically arranged with respect to the threaded rod three (22), the top ends of the two sliding rods three (21) are fixedly connected to a connecting block (24), the top end of the threaded rod three (22) is threaded through the connecting block (24), and a hand wheel three (25) is fixedly installed thereon; A lifting block (23) is installed with a threaded through-hole on the outer periphery of the threaded rod three (22), and the lifting block (23) is slidably connected with the two sliding rods three (21). A pressure plate (26) is fixedly installed on one side of the lifting block (23) close to the inner side of the supporting bar two (3), and the side of the pressure plate (26) away from the lifting block (23) is flush with the side of the supporting plate (27) away from the contact plate (16).

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