A machine tool fixture device for securing computer components
Patent Information
- Application Number
- CN202610851710.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-12
- Publication Date
- 2026-10-16
AI Technical Summary
[0004]本发明的目的在于：为了解决现有机床夹具使用时工件定位流程复杂，效率低，定位稳定性差，影响加工效率与加工质量的问题，而提供一种用于固定计算机零件的机床夹具装置
[0025] The machine tool clamping device of the present invention drives the second inclined slide plate to move horizontally through the setting of the inclined plane height adjustment mechanism. With the help of the guide inclined surfaces of the two inclined slide plates, the first inclined slide plate can be lifted or lowered under the action of gravity, thereby realizing the docking support or separation of the support block and the workpiece for unloading. The segmented structure composed of the contour support groove of the support block and the contour surface of the limiting pressure block is used to perform the abutment clamping and radial limiting of the workpiece, preventing radial shaking during processing and improving the limiting stability. Furthermore, based on the lead screw drive of the second inclined slide plate, a synchronous belt mechanism is used to link the rotation drive of the limiting pressure block with the operation of the inclined plane height adjustment mechanism. In use, the workpiece is initially placed on the contour support groove and clamped by a fixed fixture. Then, the rotary drive operates, causing the second inclined slide plate to move and lift the first inclined slide plate, achieving a tight connection between the contour support groove and the workpiece, ensuring their axes overlap. Simultaneously, the synchronous belt mechanism drives the limiting pressure block to rotate, causing the contour surface to flip onto the workpiece surface. This, in conjunction with the contour support groove, achieves clamping and radial limiting of the workpiece, thereby achieving synchronous position correction and clamping positioning, improving production efficiency. The contour support groove and workpiece are coaxial, allowing for subsequent interference-free relative movement drive, and achieving non-destructive clamping and radial limiting, improving the workpiece's positioning strength and machining accuracy. The machine tool fixture adopts a modular design, facilitating disassembly and replacement to adapt to the machining and positioning requirements of different workpieces, improving the ease of use and machining efficiency.
Smart Images
Figure CN122913901A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of machine tool fixture technology, and more specifically to a machine tool fixture device for fixing computer parts. Background Technology
[0002] The equipment for processing computer parts such as pipes and rods mainly includes a clamping mechanism, a processing mechanism, and corresponding moving drive and feeding mechanisms. For workpieces with large lengths, machine tool fixtures are generally required to support local nodes of the workpiece and prevent them from deforming and collapsing, which would affect the processing quality.
[0003] When using machine tool fixtures, the fit between the positioning groove and the workpiece surface must be considered. Therefore, during workpiece positioning, the positioning groove and the workpiece need to be moved relative to each other to ensure sufficient support. Existing positioning grooves are mostly U-shaped, with the workpiece pressed in through the opening. After docking, due to the lack of contact and restraint on the opening side, an additional locking structure is generally required to radially restrict the workpiece. This locking structure can be locked or unlocked manually or through automated equipment control. However, in existing machine tool fixtures, the positioning process of the positioning groove docking with the workpiece and the locking process of the locking structure are performed independently. This results in long workpiece positioning time, low positioning efficiency, and poor positioning stability, thus affecting machining efficiency and quality. Summary of the Invention
[0004] The purpose of this invention is to provide a machine tool fixture device for fixing computer parts, in order to solve the problems of complex workpiece positioning process, low efficiency, poor positioning stability, and impact on processing efficiency and quality when using existing machine tool fixtures.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a machine tool clamping device for fixing computer parts, comprising:
[0006] The clamp base is equipped with a barrier, the top of which has a vertical guide groove, and the side of which extends a horizontal guide groove.
[0007] The positioning seat is raised and lowered above the enclosure. It is equipped with a support block, and the support block has a contour support groove. The side of the contour support groove is provided with a rotating groove. The limiting pressure block is rotatably positioned in the rotating groove through a rotating frame. When the contour surface of the limiting pressure block rotates to align with the edge of the contour support groove, it abuts against the surface of the workpiece and radially limits its movement.
[0008] The inclined plane height adjustment mechanism includes a first inclined plane slide, a second inclined plane slide, a lead screw, and a rotary drive device. The first inclined plane slide and the second inclined plane slide are slidably disposed in the vertical guide groove and the horizontal guide groove, respectively, and their guide inclined surfaces abut against each other. The positioning seat is disposed on the first inclined plane slide. The lead screw rotatably passes through the through hole on the side of the enclosure, and its inner end is screwed into the screw hole of the second inclined plane slide, and its outer end is connected to the output end of the rotary drive device on the clamp base.
[0009] The synchronous belt mechanism is associated with the limiting pressure block and the lead screw and drives them to rotate synchronously.
[0010] As a further description of the above technical solution:
[0011] The surface of the contour support groove and the contour surface are both arc surfaces, and the corresponding central angle after splicing is greater than 180°.
[0012] As a further description of the above technical solution:
[0013] The lead screw and screw hole are provided in several corresponding positions. The thread directions of adjacent lead screws are opposite, and the first gear at their outer ends meshes with each other.
[0014] As a further description of the above technical solution:
[0015] The rotating groove and the local arc surface of the limiting pressure block can rotate relative to each other and fit tightly together.
[0016] As a further description of the above technical solution:
[0017] The synchronous belt mechanism includes a tensioning section and a driving section. The tensioning section includes a first synchronous pulley, a second synchronous pulley, a tensioning pulley, and a first synchronous belt. The first synchronous pulley is positioned at the outer end of the lead screw, and the second synchronous pulley is positioned on a first transmission shaft. The first transmission shaft is rotatably mounted on the support block. The enclosure is equipped with a tensioning drive device, and the output end of the tensioning drive device is connected to the tensioning pulley. The first synchronous belt is sleeved on the first synchronous pulley, the second synchronous pulley, and the tensioning pulley.
[0018] As a further description of the above technical solution:
[0019] The drive section includes a first drive shaft, a second drive shaft, and a second synchronous belt. The second drive shaft is located at the end of the limiting pressure block and rotates to engage with the rotating frame. The second synchronous belt is sleeved on the second drive shaft of the limiting pressure block at one end of the first drive shaft and on one side of the contour support groove.
[0020] As a further description of the above technical solution:
[0021] The limiting pressure blocks are arranged in pairs on both sides of the contour support groove. The first drive shaft passes through the support block, and the third drive shaft is rotatably mounted on the support block. The other end of the third drive shaft and the first drive shaft are positioned with a second gear that meshes with each other. The third synchronous belt is sleeved on the second drive shaft of the limiting pressure block on the other side of the third drive shaft and the contour support groove.
[0022] As a further description of the above technical solution:
[0023] The support block is embedded in the mounting groove of the positioning seat. The positioning seat is provided with several fixing plates. Bolts are inserted into the first mounting holes of the fixing plates and screwed onto the second mounting holes of the positioning seat. The fixing plates abut against the outer surface of the support block, and their edges are embedded in the recesses of the support block.
[0024] In summary, due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:
[0025] The machine tool clamping device of the present invention drives the second inclined slide plate to move horizontally through the setting of the inclined plane height adjustment mechanism. With the help of the guide inclined surfaces of the two inclined slide plates, the first inclined slide plate can be lifted or lowered under the action of gravity, thereby realizing the docking support or separation of the support block and the workpiece for unloading. The segmented structure composed of the contour support groove of the support block and the contour surface of the limiting pressure block is used to perform the abutment clamping and radial limiting of the workpiece, preventing radial shaking during processing and improving the limiting stability. Furthermore, based on the lead screw drive of the second inclined slide plate, a synchronous belt mechanism is used to link the rotation drive of the limiting pressure block with the operation of the inclined plane height adjustment mechanism. In use, the workpiece is initially placed on the contour support groove and clamped by a fixed fixture. Then, the rotary drive operates, causing the second inclined slide plate to move and lift the first inclined slide plate, achieving a tight connection between the contour support groove and the workpiece, ensuring their axes overlap. Simultaneously, the synchronous belt mechanism drives the limiting pressure block to rotate, causing the contour surface to flip onto the workpiece surface. This, in conjunction with the contour support groove, achieves clamping and radial limiting of the workpiece, thereby achieving synchronous position correction and clamping positioning, improving production efficiency. The contour support groove and workpiece are coaxial, allowing for subsequent interference-free relative movement drive, and achieving non-destructive clamping and radial limiting, improving the workpiece's positioning strength and machining accuracy. The machine tool fixture adopts a modular design, facilitating disassembly and replacement to adapt to the machining and positioning requirements of different workpieces, improving the ease of use and machining efficiency. Attached Figure Description
[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 This is a front view of a machine tool fixture for fixing computer parts.
[0028] Figure 2 This is a left view of a machine tool fixture used to hold computer parts.
[0029] Figure 3 This describes the usage state of a positioning seat in a machine tool fixture used to fix computer parts. Figure 1 .
[0030] Figure 4 This describes the usage state of a positioning seat in a machine tool fixture used to fix computer parts. Figure 2 .
[0031] Figure 5 This is a right view of a positioning seat in a machine tool fixture used to fix computer parts.
[0032] Legend:
[0033] 1. Fixture base; 2. Enclosure; 3. Vertical guide groove; 4. Horizontal guide groove; 5. Positioning seat; 6. Support block; 7. Contouring support groove; 8. Rotating groove; 9. Limiting pressure block; 10. Rotating frame; 11. Contouring surface; 12. First inclined slide plate; 13. Second inclined slide plate; 14. Lead screw; 15. Rotary drive device; 16. Guide inclined surface; 17. Screw hole; 18. First gear; 19. First synchronous pulley; 20. Second synchronous pulley; 21. Tensioning pulley; 22. First synchronous belt; 23. First drive shaft; 24. Tensioning drive device; 25. Second drive shaft; 26. Second synchronous belt; 27. Third drive shaft; 28. Second gear; 29. Third synchronous belt; 30. Mounting groove; 31. Fixing plate; 32. First assembly hole; 33. Second assembly hole; 34. Notch; 100. Workpiece. Detailed Implementation
[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0035] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.
[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0037] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.
[0038] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0039] Example 1:
[0040] Please see Figure 1-5 The present invention provides a technical solution: a machine tool fixture device for fixing computer parts, comprising:
[0041] The clamp base 1 is provided with a barrier 2, the top of the barrier 2 is provided with a vertical guide groove 3, and the side of the vertical guide groove 3 extends into a horizontal guide groove 4.
[0042] The positioning seat 5 is raised and lowered above the enclosure 2. It is equipped with a support block 6. The support block 6 has a contour support groove 7. The side of the contour support groove 7 is provided with a rotating groove 8. The limiting pressure block 9 is rotatably positioned in the rotating groove 8 through the rotating frame 10. When the contour surface 11 on its surface rotates to align with the edge of the contour support groove 7, it together abuts against and radially limits the surface of the workpiece 100.
[0043] The inclined plane height adjustment mechanism includes a first inclined plane slide plate 12, a second inclined plane slide plate 13, a lead screw 14, and a rotary drive device 15. The first inclined plane slide plate 12 and the second inclined plane slide plate 13 are slidably disposed in the vertical guide groove 3 and the horizontal guide groove 4, respectively, and their guide inclined surfaces 16 abut against each other. The positioning seat 5 is disposed on the first inclined plane slide plate 12. The lead screw 14 rotatably passes through the through hole on the side of the enclosure 2, and its inner end is screwed into the screw hole 17 of the second inclined plane slide plate 13. Its outer end is connected to the output end of the rotary drive device 15 on the clamp base 1. The rotary drive device 15 may be a servo motor.
[0044] The synchronous belt mechanism is associated with the limiting pressure block 9 and the lead screw 14 and drives them to rotate synchronously.
[0045] The inclined plane height adjustment mechanism drives the second inclined plane slide 13 to move horizontally. With the help of the guide inclined plane 16 of the two inclined plane slides, the first inclined plane slide 12 can be lifted or lowered by gravity, thereby adjusting the height of the support block 6. When the workpiece 100 is also positioned by other external fixed fixtures, the movable design of the machine tool fixture, in conjunction with the fixed fixture, can realize the docking support or separation of the support block 6 and the workpiece 100.
[0046] A segmented structure consisting of the contoured support groove 7 of the support block 6 and the contoured surface 11 of the limiting pressure block is adopted to clamp and radially limit the workpiece 100, preventing radial swaying during processing and improving the limiting stability.
[0047] Furthermore, based on the lead screw 14 driving the second inclined slide plate 13, the linkage between the rotation drive of the limiting pressure block 9 and the operation of the inclined plate height adjustment mechanism is realized through the synchronous belt mechanism. In use, the workpiece 100 is initially placed on the contour support groove 7 and clamped by the fixed fixture. Then, the rotation drive device 15 runs, causing the second inclined slide plate 13 to move and lift the first inclined slide plate 12, completing the tight docking of the contour support groove 7 and the workpiece 100, so that their axes overlap. At the same time, the synchronous belt mechanism drives the limiting pressure block 9 to rotate, causing the contour surface 11 to flip onto the surface of the workpiece 100, which, together with the contour support groove 7, achieves clamping and radial limiting of the workpiece 100. This achieves synchronous position correction and clamping positioning, improves production efficiency, and makes the contour support groove 7 and the workpiece 100 coaxial, so as to enable subsequent interference-free relative movement drive, and complete non-destructive clamping and radial limiting, thereby improving the positioning strength and processing accuracy of the workpiece 100.
[0048] The surfaces of the contour support groove 7 and the contour surface 11 are both arc surfaces, and the corresponding central angle after splicing is greater than 180°. This achieves clamping and limiting of the cylindrical, rod-shaped or tubular workpiece 100 around its perimeter. Compared with the conventional U-shaped support structure, it can additionally limit the insertion side of the workpiece and improve the positioning strength.
[0049] Specifically, the synchronous belt mechanism includes a tensioning section and a driving section. The tensioning section includes a first synchronous pulley 19, a second synchronous pulley 20, a tensioning pulley 21, and a first synchronous belt 22. The first synchronous pulley 19 is positioned at the outer end of the lead screw 14, and the second synchronous pulley 20 is positioned on a first transmission shaft 23. The first transmission shaft 23 is rotatably mounted on the support block 6. The enclosure 2 is equipped with a tensioning drive device 24, the output end of which is connected to the tensioning pulley 21. The first synchronous belt 22 is sleeved on the first synchronous pulley 19, the second synchronous pulley 20, and the tensioning pulley 21. The driving section includes a first transmission shaft 23, a second transmission shaft 25, and a second synchronous belt 26. The second transmission shaft 25 is located at the end of the limiting pressure block 9 and rotatably connects to the rotating frame 10. The second synchronous belt 26 is sleeved on the second transmission shaft 25 of the limiting pressure block 9 at one end of the first transmission shaft 23 and on one side of the contoured support groove 7. The limiting blocks 9 are arranged in pairs on both sides of the contour support groove 7. The first drive shaft 23 passes through the support block 6, and the third drive shaft 27 is rotatably mounted on the support block 6. The other end of the third drive shaft 27 and the first drive shaft 23 are positioned with a second gear 28 that meshes with each other. The third synchronous belt 29 is sleeved on the second drive shaft 25 of the limiting block 9 on the other side of the third drive shaft 27 and the contour support groove 7.
[0050] The working principle of a machine tool fixture device for fixing computer parts in this embodiment includes: when in use, the workpiece 100 is first limited by an external fixed fixture, and then the machine tool fixture moves to support and limit the area around the workpiece 100 for processing, or to remove the workpiece 100 and take the finished product away from the fixed fixture.
[0051] Specifically, when the synchronous belt mechanism is in use, the lead screw 14 is driven to rotate, causing the first synchronous pulley 19 to rotate and drive the first synchronous belt 22 to rotate. The second synchronous pulley 20 and the first transmission shaft 23 rotate synchronously. This part is mainly used to accommodate the lifting and lowering of the positioning seat 5. When the positioning seat 5 is lifted or lowered, the tensioning drive device 24 (which can be...) Figure 2The linear drive devices (cylinders, electric cylinders, hydraulic cylinders, etc.) shown in the image operate synchronously, driving the tensioning wheel 21 to move. This ensures that the tensioning wheel 21 always abuts against the first synchronous belt 22 when the positioning seat 5 is in different positions, guaranteeing tension and stable transmission. The rotation of the first drive shaft 23 drives the second synchronous belt 26 to rotate, achieving forward rotation of one side of the limiting pressure block 9. Simultaneously, through the meshing transmission of the second gear 28, the third drive shaft 27 and the third synchronous belt 29 rotate, thereby driving the other side of the limiting pressure block 9 to rotate in the opposite direction. This causes the two limiting pressure blocks 9 to rotate synchronously toward or away from the workpiece 100, achieving contact or disengagement with the workpiece 100. This allows for the synchronous positioning of the positioning seat 5, which is lifted, and the contour support groove 7 fully engages with the workpiece 100. Simultaneously, the limiting pressure block 9 flips inward, and the contour surface 11 abuts against the workpiece 100 in the workpiece positioning process. Alternatively, the positioning seat 5 may descend, the contour support groove 7 may separate from the workpiece 100, and the limiting pressure block 9 may flip outward, causing the contour surface 11 to detach from the workpiece 100. This continuous operation of workpiece release positioning and removal improves production efficiency.
[0052] Example 2:
[0053] Please see Figure 2 The figure shows a machine tool fixture device for fixing computer parts according to Embodiment 2 of the present invention. Based on the above embodiments, this embodiment further improves upon the following technical solution: Several lead screws 14 and screw holes 17 are correspondingly arranged, with adjacent lead screws 14 having opposite thread directions, and their outer ends having meshing first gears 18. This enables multiple lead screws 14 to operate synchronously, driving the second inclined slide plate 13 to slide, improving its sliding stability, and further improving the stability of the first inclined slide plate 12 and its positioning seat 5. This makes the docking of the support block 6, the limiting pressure block 9, and the workpiece 100 more precise, and the separation more stable and efficient.
[0054] Example 3:
[0055] Please see Figure 2-5 The figure shows a machine tool fixture device for fixing computer parts according to Embodiment 3 of the present invention. Based on the above embodiments, this embodiment further improves upon the following technical solution: the rotating groove 8 and the partial arc surface of the limiting block 9 can rotate relative to each other and fit tightly together. This full fit achieves stable structural guidance, making the rotation and positioning of the limiting block 9 more stable.
[0056] Example 4:
[0057] Please see Figure 2-5The figure shows a machine tool fixture device for fixing computer parts according to Embodiment 4 of the present invention. This embodiment further improves upon the previous embodiment by making the following technical improvements: the support block 6 is embedded in the mounting groove 30 of the positioning seat 5. The positioning seat 5 is provided with several fixing plates 31. Bolts are inserted into the first mounting holes 32 of the fixing plates 31 and screwed onto the second mounting holes 33 of the positioning seat 5. The fixing plates 31 abut against the outer surface of the support block 6, and their edges are embedded in the recesses 34 of the support block 6. This achieves a detachable design for the support block 6 to adapt to the processing requirements of different workpieces 100. During disassembly, the tensioning drive device 24 operates, causing the tensioning wheel 21 to disengage from the first synchronous belt 22. The first synchronous belt 22 is then removed from the second synchronous wheel 20. Afterward, the bolts are unscrewed, the fixing plates 31 are removed, and the support block 6 and its drive section can be taken out for replacement. During installation, the disassembly process is reversed. This enables modular design of machine tool fixtures, making disassembly, assembly, inspection and maintenance more convenient, component changeover operations simple, and production efficiency improved.
[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A machine tool clamping device for fixing computer parts, characterized in that, include: The clamp base is equipped with a barrier, the top of which has a vertical guide groove, and the side of which extends a horizontal guide groove. The positioning seat is raised and lowered above the enclosure. It is equipped with a support block, and the support block has a contour support groove. The side of the contour support groove is provided with a rotating groove. The limiting pressure block is rotatably positioned in the rotating groove through a rotating frame. When the contour surface of the limiting pressure block rotates to align with the edge of the contour support groove, it together abuts against the surface of the workpiece and radially limits its movement. The inclined plane height adjustment mechanism includes a first inclined plane slide plate, a second inclined plane slide plate, a lead screw, and a rotary drive device. The first inclined plane slide plate and the second inclined plane slide plate are slidably disposed in the vertical guide groove and the horizontal guide groove, respectively, and the guide inclined surfaces of their opposite faces abut against each other. The positioning seat is disposed on the first inclined plane slide plate. The lead screw rotatably passes through the through hole on the side of the enclosure, and its inner end is screwed into the screw hole of the second inclined plane slide plate. Its outer end is connected to the output end of the rotary drive device on the clamp base. The synchronous belt mechanism is associated with the limiting pressure block and the lead screw and drives them to rotate synchronously.
2. A machine tool clamping device for fixing computer parts according to claim 1, characterized in that, The surface of the contour support groove and the contour surface are both arc surfaces, and the corresponding central angle after splicing is greater than 180°.
3. A machine tool clamping device for fixing computer parts according to claim 1, characterized in that, The lead screw and screw hole are provided in several corresponding positions. The thread directions of adjacent lead screws are opposite, and the first gear at their outer ends meshes with each other.
4. A machine tool clamping device for fixing computer parts according to claim 1, characterized in that, The rotating groove and the local arc surface of the limiting pressure block can rotate relative to each other and fit tightly together.
5. A machine tool clamping device for fixing computer parts according to claim 1, characterized in that, The synchronous belt mechanism includes a tensioning section and a driving section. The tensioning section includes a first synchronous pulley, a second synchronous pulley, a tensioning pulley, and a first synchronous belt. The first synchronous pulley is positioned at the outer end of the lead screw, and the second synchronous pulley is positioned on a first transmission shaft. The first transmission shaft is rotatably mounted on the support block. The enclosure is equipped with a tensioning drive device, and the output end of the tensioning drive device is connected to the tensioning pulley. The first synchronous belt is sleeved on the first synchronous pulley, the second synchronous pulley, and the tensioning pulley.
6. A machine tool clamping device for fixing computer parts according to claim 5, characterized in that, The drive section includes a first drive shaft, a second drive shaft, and a second synchronous belt. The second drive shaft is located at the end of the limiting pressure block and rotates to engage with the rotating frame. The second synchronous belt is sleeved on the second drive shaft of the limiting pressure block at one end of the first drive shaft and on one side of the contour support groove.
7. A machine tool clamping device for fixing computer parts according to claim 6, characterized in that, The limiting pressure blocks are arranged in pairs on both sides of the contour support groove. The first drive shaft passes through the support block, and the third drive shaft is rotatably mounted on the support block. The other end of the third drive shaft and the first drive shaft are positioned with a second gear that meshes with each other. The third synchronous belt is sleeved on the second drive shaft of the limiting pressure block on the other side of the third drive shaft and the contour support groove.
8. A machine tool clamping device for fixing computer parts according to claim 1, characterized in that, The support block is embedded in the mounting groove of the positioning seat. The positioning seat is provided with several fixing plates. Bolts are inserted into the first mounting holes of the fixing plates and screwed onto the second mounting holes of the positioning seat. The fixing plates abut against the outer surface of the support block, and their edges are embedded in the recesses of the support block.