Split type tool clamp

Abstract

The utility model discloses a split type tool clamp and aims to solve the problem that in the prior art, when a workpiece with a large size is positioned through an integrated clamp, the size of the clamp is large, so that the internal space of a company is large. According to the technical scheme, the clamp comprises a machine tool workbench and a positioning assembly, the positioning assembly comprises a clamp bottom plate and a clamping workpiece, a plurality of bottom plate positioning holes are distributed in the clamp bottom plate in a rectangular mode, and the clamping workpiece is fixedly arranged on the bottom plate positioning holes through bolts; the clamping workpiece comprises a positioning screw rod arranged in the vertical direction, a positioning sliding block arranged on the positioning screw rod in a sliding mode and a positioning nut matched with the positioning screw rod. According to the split type tool, the position of the positioning assembly can be set according to the actual size of the workpiece, when the positioning assembly does not need to be used, the positioning assembly can be detached, and occupation of the internal site of a company is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fixtures, and more specifically, it relates to a split-type tooling fixture. Background Art

[0002] In order to meet the needs of different customers, enterprises need to process different workpieces according to the requirements of customers. During the processing of workpieces, fixtures are required to position the workpieces. For smaller workpieces, an integrated fixture is usually used to clamp the workpiece, thereby realizing the clamping and positioning of the workpiece. For larger workpieces, if an integrated fixture is used to clamp the larger workpiece, the volume of the fixture will be too large, and the internal space of the company is limited, which will lead to a very large internal space of the company. Content of the Utility Model

[0003] The utility model overcomes the problem that when positioning a larger workpiece through an integrated fixture in the prior art, the volume of the fixture itself is large, resulting in a large occupation of the internal space of the company; a split-type tooling fixture is provided, which can freely set the position of the positioning component around the workpiece according to the actual size of the workpiece to realize the positioning of the larger workpiece; since the workpiece is positioned through the positioning component, and the volume of the positioning component is small, the purpose of reducing the occupation of the workpiece is achieved, and the internal floor space of the company is saved.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a split-type tooling fixture, including a machine tool workbench and a positioning component. The positioning component includes a fixture bottom plate and a workpiece clamp. A number of bottom plate positioning holes are distributed in a rectangular pattern on the fixture bottom plate, and the workpiece clamp is fixedly arranged on the bottom plate positioning holes through bolts; the workpiece clamp includes a positioning screw rod arranged vertically, a positioning slider slidably arranged on the positioning screw rod, and a positioning nut cooperating with the positioning screw rod.

[0005] In the utility model, the fixture bottom plate can be fixed at any position of the machine tool workbench according to the actual shape of the workpiece. Then, the workpiece clamp is arranged on the fixture bottom plate according to the actual shape of the workpiece. Then, by rotating the positioning nut, the positioning slider is pressed against the workpiece to realize the positioning of the workpiece. Therefore, the split-type tooling in this application can set the position of the positioning component according to the actual size of the workpiece, so as to realize the positioning of the larger workpiece. When the positioning component is not needed, the positioning component can be disassembled and placed in a toolbox, thereby reducing the volume of the overall tooling fixture and reducing the occupation of the internal space of the company.

[0006] Preferably, a plurality of parallel workbench slide rails are arranged along the length direction of the machine tool workbench. A workbench slider is arranged in the workbench slide rail, and a slider positioning hole is arranged on the workbench slider. A bottom plate through hole is arranged through the fixture bottom plate, and a slider positioning bolt passes through the bottom plate through hole and is threadedly connected with the slider positioning hole to fixedly arrange the fixture bottom plate on the machine tool workbench.

[0007] Through the cooperation between the workbench slider and the slider positioning hole, the workbench slider can be installed at any position on the machine tool workbench.

[0008] Preferably, the positioning component further includes a side auxiliary positioning workpiece for the workpiece. The side auxiliary positioning workpiece includes a side auxiliary positioning block fixedly arranged on the fixture bottom plate. The side auxiliary positioning block is L-shaped, and a side auxiliary positioning hole arranged in the horizontal direction is arranged on the side auxiliary positioning block. A side auxiliary positioning pin threadedly matched with it is arranged in the side auxiliary positioning hole. The side auxiliary positioning pin abuts against the side of the workpiece to position the workpiece.

[0009] Through the side auxiliary positioning workpiece, the workpiece to be machined can be machined more precisely, and at the same time, the workpiece can be prevented from shifting during machining.

[0010] Preferably, the positioning component further includes a bottom auxiliary positioning workpiece for the workpiece. The bottom auxiliary positioning workpiece includes a bottom auxiliary positioning block fixedly arranged on the fixture bottom plate. A bottom auxiliary positioning hole arranged in the vertical direction is arranged on the bottom auxiliary positioning block. A bottom auxiliary positioning pin threadedly matched with it is arranged in the bottom auxiliary positioning hole. The bottom auxiliary positioning pin abuts against the end face at the lower end of the workpiece to position the workpiece.

[0011] The bottom auxiliary positioning pin can cooperate with the clamped workpiece. The bottom auxiliary positioning pin and the clamped workpiece are respectively located at the upper and lower ends of the workpiece to be machined for machining and positioning of the workpiece to be machined.

[0012] Preferably, the bottom auxiliary positioning pin includes a threaded rod and a butting rod arranged at the upper end of the threaded rod. The threaded rod is matched with the bottom auxiliary positioning hole. An auxiliary limiting nut is threadedly matched on the threaded rod, and the auxiliary limiting nut abuts against the end of the bottom auxiliary positioning hole.

[0013] Since the bottom auxiliary positioning pin mainly bears the force exerted by the workpiece to be machined through the thread between the bottom auxiliary positioning pin and the bottom auxiliary positioning hole when positioning the workpiece to be machined, the thread on the bottom auxiliary positioning pin is extremely vulnerable to damage. Therefore, an auxiliary limiting nut is arranged on the threaded rod so that the force exerted by the workpiece on the bottom auxiliary positioning pin can be transferred to the auxiliary limiting nut, and the auxiliary limiting nut provides a supporting force for the bottom auxiliary positioning pin, thereby preventing the thread between the bottom auxiliary positioning pin and the bottom auxiliary positioning hole from being damaged.

[0014] Preferably, a polygonal tightening ring is fixedly arranged on the periphery of the abutting rod.

[0015] The setting of the tightening ring enables the abutting rod to be conveniently rotated by a wrench.

[0016] Preferably, the workpiece clamp further includes an auxiliary support column arranged in parallel with the positioning screw rod. An auxiliary support hole is arranged in the auxiliary support column in the vertical direction, and an auxiliary support rod is threadedly connected in the auxiliary support hole; one end of the positioning slider abuts against the workpiece, and the other end of the positioning slider abuts against the upper end of the auxiliary support rod.

[0017] When using the positioning slider, one end of the positioning slider abuts against the workpiece, and the other end of the positioning slider abuts against the upper end of the auxiliary support rod, so that the forces at both ends of the positioning slider are balanced, and the threads between the positioning nut and the positioning screw rod are also prevented from being damaged.

[0018] Preferably, at least three groups of positioning components are provided.

[0019] The three groups of positioning components perform positioning in three directions of the workpiece to be processed, so that the positioning stability can be improved.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] The fixture base plate in the present utility model can be fixed at any position of the machine tool workbench according to the actual shape of the workpiece. Then, the workpiece clamp is arranged on the fixture base plate according to the actual shape of the workpiece. Then, by rotating the positioning nut, the positioning slider is pressed against the workpiece to achieve the positioning of the workpiece. And by setting the auxiliary positioning workpiece at the bottom and the auxiliary positioning workpiece on the side, better positioning of the workpiece to be processed can be achieved.

[0022] Therefore, the split-type tooling in the present application can set the positions of the positioning components according to the actual size of the workpiece, so as to achieve the positioning of larger workpieces. When the positioning components are not needed, the positioning components can be disassembled and placed in the toolbox, thereby reducing the volume of the overall tooling fixture and reducing the occupation of the internal space of the company. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of the present utility model during actual use.

[0024] Figure 2 is a schematic structural diagram of the fixed connection between the machine tool workbench and the fixture base plate of the present utility model.

[0025] Figure 3 is a schematic structural diagram of the workpiece clamp of the present utility model.

[0026] Figure 4 It is a schematic structural view of the side auxiliary positioning workpiece of the present utility model.

[0027] Figure 5 It is a schematic structural view of the bottom auxiliary positioning workpiece of the present utility model.

[0028] Figure 6 It is a cross-sectional view of the clamping workpiece in Embodiment 3 of the present utility model.

[0029] In the figure: 1. Machine tool workbench, 11. Workbench slide rail, 12. Workbench slider, 121. Slider positioning hole;

[0030] 2. Fixture base plate, 21. Base plate positioning hole;

[0031] 3. Clamping workpiece, 31. Clamping base, 32. Positioning screw rod, 33. Positioning slider, 34. Positioning nut, 35. Auxiliary support column, 351. Auxiliary support hole, 36. Auxiliary support rod, 361. Piston head, 37. Support spring, 38. Oil pipe, 39. Oil storage bladder;

[0032] 4. Side auxiliary positioning workpiece, 41. Side auxiliary positioning block, 42. Side auxiliary positioning hole, 43. Side auxiliary positioning pin;

[0033] 5. Bottom auxiliary positioning workpiece, 51. Bottom auxiliary positioning block, 52. Bottom auxiliary positioning hole, 53. Bottom auxiliary positioning pin, 531. Threaded rod, 532. Abutting rod, 533. Tightening ring, 54. Auxiliary limit nut. Specific embodiments

[0034] The following will further specifically describe the technical solution of the present utility model through specific embodiments and in conjunction with the drawings:

[0035] Embodiment 1: Refer to Figures 1 to 5 As shown, a split-type tooling fixture includes a machine tool workbench 1 and a positioning component. The positioning component includes a fixture base plate 2 and a clamping workpiece 3. A plurality of base plate positioning holes 21 are rectangularly distributed on the fixture base plate 2, and the clamping workpiece 3 is fixedly arranged on the base plate positioning holes 21 through bolts; the clamping workpiece 3 includes a positioning screw rod 32 arranged in the vertical direction, a positioning slider 33 slidably arranged on the positioning screw rod 32, and a positioning nut 34 cooperating with the positioning screw rod 32.

[0036] The fixture base plate 2 can be fixed at any position on the machine tool workbench 1 according to the actual shape of the workpiece. Then, the clamping workpiece 3 is arranged on the fixture base plate 2 according to the actual shape of the workpiece. After that, by rotating the positioning nut 34, the positioning slider 33 is pressed against the workpiece to realize the positioning of the workpiece. Therefore, the split-type tooling in this application can set the position of the positioning component according to the actual size of the workpiece, so as to realize the positioning of larger workpieces. When the positioning component is not needed, the positioning component can be disassembled and placed in the toolbox, thus reducing the volume of the overall tooling fixture and the occupation of the internal space of the company.

[0037] Embodiment 2: Refer to Figures 1 to 5 As shown, a split-type tooling fixture includes a machine tool workbench 1 and a positioning component. The positioning component includes a fixture base plate 2 and a clamping workpiece 3. The positioning component can be fixedly arranged at any position on the machine tool workbench 1 according to the shape of the workpiece to be machined, so as to facilitate the clamping workpiece 3 to position the workpiece to be machined. A plurality of base plate positioning holes 21 are distributed in a rectangular pattern on the fixture base plate 2, and the plurality of base plate positioning holes 21 are evenly distributed.

[0038] In one embodiment, a plurality of parallel workbench slide rails 11 are arranged along the length direction on the machine tool workbench 1. A workbench slider 12 is arranged in the workbench slide rail 11, and the workbench slider 12 can slide freely in the workbench slide rail 11. A slider positioning hole 121 is arranged on the workbench slider 12; a base plate through hole is penetrated on the fixture base plate 2, and a slider positioning bolt passes through the base plate through hole and is threadedly connected with the slider positioning hole 121. By tightening the slider positioning bolt, the fixture base plate 2 can be fixedly arranged on the machine tool workbench 1.

[0039] The clamping workpiece 3 is fixedly arranged on the base plate positioning hole 21 by bolts. Specifically, the clamping workpiece 3 includes a clamping base 31, and the clamping base 31 is fixedly connected with the base plate positioning hole 21 by bolts. A positioning screw rod 32 is arranged vertically on the clamping base 31, a positioning slider 33 slidably arranged on the positioning screw rod 32, and a positioning nut 34 cooperating with the positioning screw rod 32. During use, by tightening the positioning nut 34, the positioning slider 33 can be pressed against the workpiece to be machined, so as to realize the positioning of the workpiece to be machined.

[0040] When the positioning slider 33 presses tightly against the workpiece to be machined, usually only one end of the positioning slider 33 presses tightly against the workpiece to be machined. Therefore, in order to keep the positioning slider 33 balanced, an auxiliary support rod 36 is provided at the other end of the positioning slider 33. An auxiliary support column 35 parallel to the positioning screw 32 is provided on the clamping base 31. An auxiliary support hole 351 arranged in the vertical direction is provided in the auxiliary support column 35, and an auxiliary support rod 36 is threadedly connected in the auxiliary support hole 351. When using the positioning slider 33, one end of the positioning slider 33 abuts against the workpiece, and the other end of the positioning slider 33 abuts against the upper end of the auxiliary support rod 36, so that the forces at both ends of the positioning slider 33 are balanced, and the thread between the positioning nut 34 and the positioning screw 32 is also prevented from being damaged.

[0041] In one embodiment, in order to improve the positioning accuracy of the workpiece to be machined, a side auxiliary positioning workpiece 4 is further provided on the fixture bottom plate 2 of the present application to position the side of the workpiece to be machined. The side auxiliary positioning workpiece 4 includes a side auxiliary positioning block 41 fixedly arranged on the fixture bottom plate 2. The side auxiliary positioning block 41 is L-shaped, and a side auxiliary positioning hole 42 arranged in the horizontal direction is provided on the side auxiliary positioning block 41. A side auxiliary positioning pin 43 threadedly engaged with it is arranged in the side auxiliary positioning hole 42. The side auxiliary positioning pin 43 abuts against the side of the workpiece to be machined to position the workpiece. When in use, first fix the side auxiliary positioning block 41 on the fixture bottom plate 2 through bolts, and then rotate the side auxiliary positioning pin 43 so that the end of the side auxiliary positioning pin 43 abuts against the side of the workpiece to be machined, thereby positioning the workpiece to be machined. Through the side auxiliary positioning workpiece 4, the workpiece to be machined can be machined more precisely, and at the same time, the workpiece can be prevented from shifting during machining.

[0042] In one embodiment, the positioning assembly further includes a bottom auxiliary positioning workpiece 5. The bottom auxiliary positioning workpiece 5 includes a bottom auxiliary positioning block 51 fixedly arranged on the fixture bottom plate 2. A bottom auxiliary positioning hole 52 arranged in the vertical direction is provided on the bottom auxiliary positioning block 51. A bottom auxiliary positioning pin 53 threadedly engaged with it is arranged in the bottom auxiliary positioning hole 52. When in use, rotate the bottom auxiliary positioning pin 53 so that the end of the bottom auxiliary positioning pin 53 abuts against the end face of the lower end of the workpiece to position the workpiece. The bottom auxiliary positioning pin 53 can cooperate with the clamping workpiece 3. The bottom auxiliary positioning pin 53 and the clamping workpiece 3 are respectively located at the upper and lower ends of the workpiece to be machined to perform machining positioning on the workpiece to be machined.

[0043] The bottom auxiliary positioning pin 53 includes a threaded rod 531 and a contact rod 532 arranged at the upper end of the threaded rod 531; the threaded rod 531 is in threaded fit with the bottom auxiliary positioning hole 52; an auxiliary limiting nut 54 is in threaded fit on the threaded rod 531, and the auxiliary limiting nut 54 abuts against the end of the bottom auxiliary positioning hole 52.

[0044] When the bottom auxiliary positioning pin 53 positions the workpiece to be machined, the force exerted on the workpiece to be machined is mainly borne by the thread between the bottom auxiliary positioning pin 53 and the bottom auxiliary positioning hole 52, which makes the thread on the bottom auxiliary positioning pin 53 extremely vulnerable to damage. Therefore, an auxiliary limiting nut 54 is arranged on the screw rod, so that the force exerted by the workpiece on the bottom auxiliary positioning pin 53 can be transferred to the auxiliary limiting nut 54, and the auxiliary limiting nut 54 provides a supporting force for the bottom auxiliary positioning pin 53, thereby preventing the thread between the bottom auxiliary positioning pin 53 and the bottom auxiliary positioning hole 52 from being damaged.

[0045] In addition, in order to facilitate the rotation of the bottom auxiliary positioning pin 53, a polygonal tightening ring 533 is fixedly arranged on the periphery of the contact rod 532. The tightening ring 533 in this embodiment is an octagonal tightening ring 533, so that the tightening ring 533 can be rotated more easily by a wrench.

[0046] The working principle of this embodiment is as follows:

[0047] The first step is to install the bottom plate fixture on the machine tool workbench 1 according to the size of the workpiece to be machined;

[0048] The second step is to fixedly connect the clamping base 31 to the bottom plate positioning hole 21 through bolts, and then adjust the height of the auxiliary support rod 36 so that the height of the top end of the auxiliary support rod 36 is the same as the height of the workpiece to be machined. Then rotate the positioning nut 34 so that both ends of the positioning slider 33 are pressed against the workpiece to be machined and the top end of the auxiliary support rod 36 respectively;

[0049] The fourth step is to fixedly arrange the side auxiliary positioning block 41 on the fixture bottom plate 2 through bolts, and then rotate the side auxiliary positioning pin 43 so that the end of the side auxiliary positioning pin 43 abuts against the side of the workpiece to be machined, thereby positioning the side of the workpiece to be machined;

[0050] The fifth step is to fixedly arrange the bottom auxiliary positioning block 51 on the fixture bottom plate 2 through bolts, and then rotate the bottom auxiliary positioning pin 53 so that the end of the bottom auxiliary positioning pin 53 abuts against the end face of the lower end of the workpiece, positioning the lower end of the workpiece.

[0051] In addition, for the same type of workpieces to be processed, in order to save the time for positioning and installing on each side, symbols can be marked on the machine tool workbench 1 and the fixture base plate 2 to facilitate the next installation and clamping of workpieces such as the clamping base 31, the side auxiliary positioning block 41, and the bottom auxiliary positioning block 51. It should be noted that the clamped workpiece 3, the side auxiliary positioned workpiece 4, and the bottom auxiliary positioned workpiece 5 in this embodiment can be directly installed on the machine tool workbench 1.

[0052] The fixture base plate 2 can be fixed at any position on the machine tool workbench 1 according to the actual shape of the workpiece. Then, the clamped workpiece 3 is arranged on the fixture base plate 2 according to the actual shape of the workpiece. After that, by rotating the positioning nut 34, the positioning slider 33 is pressed against the workpiece to achieve the positioning of the workpiece. And by setting the bottom auxiliary positioned workpiece 5 and the side auxiliary positioned workpiece 4, better positioning of the workpiece to be processed can be achieved.

[0053] Therefore, the split-type tooling in this application can set the position of the positioning component according to the actual size of the workpiece, so as to achieve the positioning of larger workpieces. When the positioning component is not needed, the positioning component can be disassembled and placed in the toolbox, thus reducing the volume of the overall tooling fixture and the occupation of the internal space of the company.

[0054] Embodiment 3: Refer to Figures 1 to 6 As shown, a split-type tooling fixture includes a machine tool workbench 1 and a positioning component. The positioning component includes a fixture base plate 2 and a clamped workpiece 3. The positioning component can be selectively and fixedly arranged at any position on the machine tool workbench 1 according to the shape of the workpiece to be processed, so as to facilitate the clamped workpiece 3 to position the workpiece to be processed. A plurality of base plate positioning holes 21 are distributed in a rectangular pattern on the fixture base plate 2, and the plurality of base plate positioning holes 21 are evenly distributed.

[0055] In one embodiment, a plurality of parallel workbench slide rails 11 are arranged along the length direction on the machine tool workbench 1. A workbench slider 12 is arranged in the workbench slide rail 11, and the workbench slider 12 can freely slide in the workbench slide rail 11. A slider positioning hole 121 is arranged on the workbench slider 12; a base plate through hole is penetrated on the fixture base plate 2, and a slider positioning bolt passes through the base plate through hole and is threadedly connected with the slider positioning hole 121. By tightening the slider positioning bolt, the fixture base plate 2 can be fixedly arranged on the machine tool workbench 1.

[0056] The clamping workpiece 3 is fixedly arranged on the positioning hole 21 of the bottom plate through bolts. Specifically, the clamping workpiece 3 includes a clamping base 31, and the clamping base 31 is fixedly connected to the positioning hole 21 of the bottom plate through bolts. A positioning screw rod 32 arranged vertically, a positioning slider 33 slidably arranged on the positioning screw rod 32, and a positioning nut 34 cooperating with the positioning screw rod 32 are arranged on the clamping base 31. During use, the positioning nut 34 can be tightened to press the positioning slider 33 against the workpiece to be machined, thereby realizing the positioning of the workpiece to be machined.

[0057] In one embodiment, in order to improve the positioning accuracy of the workpiece to be machined, a side auxiliary positioning workpiece 4 is further arranged on the fixture bottom plate 2 in this application to position the side of the workpiece to be machined. The side auxiliary positioning workpiece 4 includes a side auxiliary positioning block 41 fixedly arranged on the fixture bottom plate 2. The side auxiliary positioning block 41 is L-shaped, and a side auxiliary positioning hole 42 arranged horizontally is arranged on the side auxiliary positioning block 41. A side auxiliary positioning pin 43 threadedly matched with the side auxiliary positioning hole 42 is arranged in the side auxiliary positioning hole 42; the side auxiliary positioning pin 43 abuts against the side of the workpiece to be machined to position the workpiece. During use, the side auxiliary positioning block 41 is first fixedly arranged on the fixture bottom plate 2 through bolts, and then the side auxiliary positioning pin 43 is rotated so that the end of the side auxiliary positioning pin 43 abuts against the side of the workpiece to be machined, thereby positioning the workpiece to be machined. Through the side auxiliary positioning workpiece 4, the workpiece to be machined can be machined more precisely, and at the same time, the workpiece can be prevented from shifting during machining.

[0058] In one embodiment, the positioning assembly further includes a bottom auxiliary positioning workpiece 5. The bottom auxiliary positioning workpiece 5 includes a bottom auxiliary positioning block 51 fixedly arranged on the fixture bottom plate 2. A bottom auxiliary positioning hole 52 arranged vertically is arranged on the bottom auxiliary positioning block 51. A bottom auxiliary positioning pin 53 threadedly matched with the bottom auxiliary positioning hole 52 is arranged in the bottom auxiliary positioning hole 52. During use, the bottom auxiliary positioning pin 53 is rotated so that the end of the bottom auxiliary positioning pin 53 abuts against the end face of the lower end of the workpiece to position the workpiece. The bottom auxiliary positioning pin 53 can cooperate with the clamping workpiece 3. The bottom auxiliary positioning pin 53 and the clamping workpiece 3 are respectively located at the upper and lower ends of the workpiece to be machined to perform machining positioning on the workpiece to be machined.

[0059] The bottom auxiliary positioning pin 53 includes a threaded rod 531 and an abutting rod 532 arranged at the upper end of the threaded rod 531; the threaded rod 531 is threadedly matched with the bottom auxiliary positioning hole 52; an auxiliary limiting nut 54 is threadedly matched on the threaded rod 531, and the auxiliary limiting nut 54 abuts against the end of the bottom auxiliary positioning hole 52.

[0060] Since the bottom auxiliary positioning pin 53 mainly bears the force exerted on the workpiece to be machined through the thread between the bottom auxiliary positioning pin 53 and the bottom auxiliary positioning hole 52 during the positioning of the workpiece to be machined, the thread on the bottom auxiliary positioning pin 53 is extremely vulnerable to damage. Therefore, an auxiliary limit nut 54 is provided on the screw rod, so that the force exerted by the workpiece on the bottom auxiliary positioning pin 53 can be transferred to the auxiliary limit nut 54, enabling the auxiliary limit nut 54 to provide a supporting force for the bottom auxiliary positioning pin 53, thereby preventing damage to the thread between the bottom auxiliary positioning pin 53 and the bottom auxiliary positioning hole 52.

[0061] In addition, in order to facilitate the rotation of the bottom auxiliary positioning pin 53, a polygonal tightening ring 533 is fixedly provided on the periphery of the abutting rod 532. The tightening ring 533 in this embodiment is an octagonal tightening ring 533, making it easier to rotate the tightening ring 533 with a wrench.

[0062] When the positioning slider 33 presses tightly on the workpiece to be machined, usually only one end of the positioning slider 33 presses tightly on the workpiece to be machined. Therefore, in order to keep the positioning slider 33 balanced, an auxiliary support rod 36 is provided at the other end of the positioning slider 33. An auxiliary support column 35 parallel to the positioning screw rod 32 is provided on the clamping base 31. An auxiliary support hole 351 arranged in the vertical direction is provided in the auxiliary support column 35, and an auxiliary support rod 36 is arranged in the auxiliary support hole 351; when using the positioning slider 33, one end of the positioning slider 33 abuts against the workpiece, and the other end of the positioning slider 33 abuts against the upper end of the auxiliary support rod 36, so that the forces at both ends of the positioning slider 33 are balanced, and it also prevents damage to the thread between the positioning nut 34 and the positioning screw rod 32.

[0063] Refer to Figure 6 As shown, the structure in this embodiment is similar to that in Embodiment 1 or Embodiment 2. The difference is that a piston head 361 is provided at the bottom of the auxiliary support rod 36, and the piston head 361 slides in the auxiliary support hole 351; a support spring 37 is provided between the piston head 361 and the bottom of the auxiliary support hole 351; an oil pipe 38 communicating with it is provided on the side wall of the auxiliary support hole 351, and the end of the oil pipe 38 far from the auxiliary support hole 351 is communicated with an oil storage bladder 39, and the oil storage bladder 39 is communicated with the auxiliary support hole 351 through the oil pipe 38. Hydraulic oil is filled in the oil storage bladder 39 and the auxiliary support hole 351. The oil storage bladder 39 is made of rubber material and can freely contract and expand. A valve is provided on the oil pipe 38, and the valve can block the flow of hydraulic oil in the oil pipe 38.

[0064] During normal use, the valve can be opened first so that the hydraulic oil can flow freely in the oil pipe 38. The piston head 361 is subjected to the acting force of the support spring 37, causing the auxiliary support rod 36 to always move upward. The upper end of the auxiliary support rod 36 will always abut against the positioning slider 33. When the positioning nut 34 rotates, the positioning slider 33 will also move downward. When the positioning slider 33 positions and locks the workpiece to be processed, the valve is then closed to prevent the hydraulic oil from flowing in the oil pipe 38. At this time, the auxiliary support hole 351 is a closed space, and the hydraulic oil is incompressible. The auxiliary support rod 36 plays a supporting role for the positioning slider 33.

[0065] Therefore, through the above settings, it is not necessary to specifically adjust the height of the auxiliary support rod 36. Compared with adjusting the height of the copy support rod through threads, it has the characteristic of more convenient use.

[0066] The working principle of this embodiment is as follows:

[0067] First step, install the bottom fixture on the machine tool workbench 1 according to the size of the workpiece to be processed;

[0068] Second step, fixedly connect the clamping base 31 to the bottom plate positioning hole 21 through bolts. Then adjust the height of the auxiliary support rod 36 so that the height of the top end of the auxiliary support rod 36 is the same as the height of the workpiece to be processed. Then rotate the positioning nut 34 so that both ends of the positioning slider 33 are respectively pressed against the workpiece to be processed and the top end of the auxiliary support rod 36;

[0069] Fourth step, fixedly set the side auxiliary positioning block 41 on the fixture bottom plate 2 through bolts. Then rotate the side auxiliary positioning pin 43 so that the end of the side auxiliary positioning pin 43 abuts against the side of the workpiece to be processed, thereby positioning the side of the workpiece to be processed;

[0070] Fifth step, fixedly set the bottom auxiliary positioning block 51 on the fixture bottom plate 2 through bolts. Then rotate the bottom auxiliary positioning pin 53 so that the end of the bottom auxiliary positioning pin 53 abuts against the end face of the lower end of the workpiece to position the lower end of the workpiece.

[0071] In addition, for the same type of workpiece to be processed, in order to save the time for positioning and installing on each side, symbols can be marked on the machine tool workbench 1 and the fixture bottom plate 2 to facilitate the next installation and clamping of the base 31, side auxiliary positioning block 41, bottom auxiliary positioning block 51 and other workpieces. And it should be noted that the clamping workpiece 3, side auxiliary positioning workpiece 4, and bottom auxiliary positioning workpiece 5 in this embodiment can be directly installed on the machine tool workbench 1.

[0072] The fixture base plate 2 can be fixed at any position of the machine tool workbench 1 according to the actual shape of the workpiece. Then, the clamping workpiece 3 is arranged on the fixture base plate 2 according to the actual shape of the workpiece. After that, by rotating the positioning nut 34, the positioning slider 33 is pressed against the workpiece to achieve the positioning of the workpiece. And by setting the bottom auxiliary positioning workpiece 5 and the side auxiliary positioning workpiece 4, better positioning of the workpiece to be machined can be achieved.

[0073] Therefore, the split-type tooling in this application can set the position of the positioning component according to the actual size of the workpiece, so as to achieve the positioning of larger workpieces. When the positioning component is not needed, the positioning component can be disassembled and placed in the toolbox, thus reducing the volume of the overall tooling fixture and reducing the occupation of the internal space of the company.

[0074] The above-described embodiments are only the preferred solutions of the present invention, and do not impose any form of limitation on the present invention. There are other variations and modifications without exceeding the technical solutions described in the claims.

Claims

1. A split-type tooling fixture, characterized in that, It includes a machine tool workbench and a positioning component. The positioning component includes a fixture base plate and a workpiece clamping member. A number of base plate positioning holes are distributed in a rectangular pattern on the fixture base plate, and the workpiece clamping member is fixedly arranged on the base plate positioning holes through bolts. The workpiece clamping member includes a positioning screw rod arranged vertically, a positioning slider slidably arranged on the positioning screw rod, and a positioning nut cooperating with the positioning screw rod.

2. The split-type tooling fixture according to claim 1, characterized in that, A number of parallel workbench slide rails are arranged along the length direction of the machine tool workbench. A workbench slider is arranged in the workbench slide rail, and a slider positioning hole is arranged on the workbench slider. A base plate through hole is arranged through the fixture base plate, and a slider positioning bolt passes through the base plate through hole and is threadedly connected with the slider positioning hole to fixedly arrange the fixture base plate on the machine tool workbench.

3. The split-type tooling fixture according to claim 1, characterized in that, The positioning component further includes a side auxiliary positioning workpiece. The side auxiliary positioning workpiece includes a side auxiliary positioning block fixedly arranged on the fixture base plate. The side auxiliary positioning block is L-shaped, and a side auxiliary positioning hole arranged horizontally is arranged on the side auxiliary positioning block. A side auxiliary positioning pin threadedly cooperating with it is arranged in the side auxiliary positioning hole. The side auxiliary positioning pin abuts against the side of the workpiece to position the workpiece.

4. The split-type tooling fixture according to claim 1, characterized in that, The positioning component further includes a bottom auxiliary positioning workpiece. The bottom auxiliary positioning workpiece includes a bottom auxiliary positioning block fixedly arranged on the fixture base plate. A bottom auxiliary positioning hole arranged vertically is arranged on the bottom auxiliary positioning block. A bottom auxiliary positioning pin threadedly cooperating with it is arranged in the bottom auxiliary positioning hole. The bottom auxiliary positioning pin abuts against the end face of the lower end of the workpiece to position the workpiece.

5. The split-type tooling fixture according to claim 4, characterized in that, The bottom auxiliary positioning pin includes a threaded rod and a butting rod arranged at the upper end of the threaded rod. The threaded rod cooperates with the bottom auxiliary positioning hole. An auxiliary limiting nut is threadedly arranged on the threaded rod, and the auxiliary limiting nut abuts against the end of the bottom auxiliary positioning hole.

6. The split-type tooling fixture according to claim 5, characterized in that, A polygonal tightening ring is fixedly arranged on the periphery of the butting rod.

7. The split-type tooling fixture according to any one of claims 1 to 6, characterized in that, The workpiece clamping member further includes an auxiliary support column arranged parallel to the positioning screw rod. An auxiliary support hole arranged vertically is arranged in the auxiliary support column, and an auxiliary support rod is threadedly connected in the auxiliary support hole. One end of the positioning slider abuts against the workpiece, and the other end of the positioning slider abuts against the upper end of the auxiliary support rod.

8. The split-type tooling fixture according to any one of claims 1 to 6, characterized in that At least three groups of positioning components are arranged.

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