Positioning tool for zirconium oxide porcelain block processing

Abstract

The utility model relates to the technical field of zirconia ceramic processing, and provides a zirconia ceramic block processing positioning tool which comprises a first bearing table, a second bearing table and a control table fixed on the upper surfaces of the first bearing table and the second bearing table, the driving part is mounted on the control table; the first clamping part and the second clamping part are arranged on the first bearing table and the second bearing table respectively and are in transmission connection with the driving part; the position control part is mounted on the second bearing table and is connected with the second clamping part; according to the highway anti-collision guardrail, through the arranged centering part, quick centering can be achieved before zirconia porcelain blocks are clamped, the polishing machining precision of the zirconia porcelain blocks is effectively improved, the workload of manual centering is reduced, machining and fixing of the zirconia porcelain blocks of different sizes are conveniently met, the use range of the device is effectively widened, and the practicability is high. The production benefit is improved.

Description

Technical Field

[0001] This utility model relates to the field of zirconia ceramic processing technology, and more specifically, to a positioning fixture for processing zirconia ceramic blocks. Background Technology

[0002] Zirconia ceramics have excellent properties such as high melting and boiling points, high hardness, and are insulators at room temperature but conductive at high temperatures. Zirconia ceramics are white, but turn yellow or gray when they contain impurities. They are not easy to separate. Due to the rough edges and burrs on the surface of ceramic products during the production process, in order to ensure production quality, they often need to be positioned by fixtures before grinding.

[0003] However, in the use of existing grinding equipment, it is not convenient to automatically center the round zirconia ceramic blocks. When grinding the workpiece, manual centering may produce errors. In batch processing, since positioning operation is required every time the workpiece is clamped, misalignment and positioning deviation are easy to occur. As a result, the processing accuracy and quality of the zirconia ceramic blocks are inconsistent. In addition, manual centering increases the workload of workers and requires a long time for manual labor. Utility Model Content

[0004] The purpose of this invention is to provide a positioning fixture for processing zirconia ceramic blocks to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides a positioning fixture for processing zirconia ceramic blocks, including: a first support platform and a second support platform, and a control console fixed on the upper surface of the first support platform and the second support platform;

[0006] The drive unit is mounted on the console;

[0007] The first clamping part and the second clamping part are respectively disposed on the first support platform and the second support platform, and are both connected to the driving part for transmission.

[0008] A positioning control unit is mounted on the second support platform to push the second clamping unit closer to the first clamping unit;

[0009] A centering part is disposed on the first clamping part;

[0010] An adjustment unit, mounted on the first clamping unit, is used to drive the centering unit to move horizontally.

[0011] The drive unit, in conjunction with the adjustment unit, moves to bring the centering unit closer to the zirconium oxide material, and can control the first clamping unit and the second clamping unit to simultaneously rotate the clamped material.

[0012] Furthermore, the centering part includes a control ring sleeved on the first clamping part, a positioning ring rotatably mounted on the control ring, a plurality of positioning rods fixed in a ring array outside the positioning ring, a plurality of movable grooves respectively opened in the plurality of positioning rods, a plurality of sliders respectively slidably mounted in the plurality of movable grooves, a plurality of centering clamps respectively rotatably connected to the plurality of sliders, and a plurality of return springs respectively disposed in the plurality of movable grooves and fixedly connected at one end to the inner wall of the plurality of movable grooves.

[0013] The other end of each of the reset springs is fixedly connected to one of the sliders.

[0014] Furthermore, the centering part also includes a take-up groove formed on the control ring, a plurality of positioning blocks fixed in a ring array within the take-up groove, a plurality of connecting rings movably sleeved on the outside of the plurality of positioning blocks, and a plurality of control ropes with one end fixed to the plurality of connecting rings and the other end fixed to the plurality of centering clamps.

[0015] Furthermore, the first clamping part includes a first control seat fixed on the first support platform, a first rotating shaft rotatably installed in the first control seat, and a first clamping seat and a first transmission wheel respectively fixed to both ends of the first rotating shaft;

[0016] The second clamping part includes a second control seat near the second support platform, a second rotating shaft rotatably installed in the second control seat, and a second clamping seat and a second transmission wheel respectively fixed to both ends of the first rotating shaft;

[0017] The control ring is movably sleeved on the outside of the first clamping seat.

[0018] Furthermore, the adjustment unit includes two electric push rods symmetrically fixed on the first control seat, two connecting rods with one end fixedly connected to the telescopic ends of the two electric push rods respectively, and the other end fixedly connected to the positioning ring, a plurality of control blocks fixed in a ring array outside the first clamping seat, and a plurality of control slots in a ring array opened on the inner wall of the control ring and corresponding to the plurality of control blocks.

[0019] Furthermore, the drive unit includes a control motor fixed on the console, a drive shaft rotatably mounted on the console and fixedly connected at one end to the output end of the control motor, a first drive wheel fixedly sleeved on the drive shaft and corresponding to the first transmission wheel, a second drive wheel slidably mounted on the drive shaft and corresponding to the second transmission wheel, and two transmission belts sleeved on the outside of the first transmission wheel and the first drive wheel and the outside of the second transmission wheel and the second drive wheel.

[0020] Furthermore, the positioning unit includes a hydraulic rod mounted on the second support platform, a positioning platform fixed on the telescopic end of the hydraulic rod and fixedly connected to the second control seat, two guide rods symmetrically fixed on the second support platform, two guide blocks slidably mounted on the two guide rods and fixedly connected to the positioning platform, a positioning wheel movably sleeved outside the drive shaft and rotatably connected to the second drive wheel, a positioning groove formed on the positioning wheel, one end of the positioning plate on the positioning platform and the other end extending into the positioning groove.

[0021] Compared with the prior art, the embodiments of this utility model have the following beneficial effects:

[0022] This highway crash barrier, through the installation of a drive assembly and adjustment unit, can drive the positioning unit to quickly self-center the zirconia ceramic blocks to be processed. This ensures that the center end of the zirconia ceramic block and the center end of the first clamping unit are on the same axis, guaranteeing the positional consistency of the zirconia ceramic blocks in batch processing and avoiding inconsistencies caused by positioning deviations. This significantly improves product consistency and pass rate, while reducing the workload of manual centering by workers. Furthermore, by controlling the movement distance of several centering blocks in the centering unit, clamping and centering of zirconia ceramic blocks of different sizes can be achieved, effectively improving the practicality of the device. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 A perspective view of the present invention is shown;

[0025] Figure 2 A top view of the present invention is shown;

[0026] Figure 3 A side view of the present invention is shown;

[0027] Figure 4 A partial side view of the present invention is shown;

[0028] Figure 5 A partially disassembled perspective view of this utility model is shown;

[0029] Figure 6 This invention provides a partially cross-sectional perspective view. Figure 1 ;

[0030] Figure 7 This invention provides a partially cross-sectional perspective view. Figure 2 .

[0031] In the picture

[0032] 1. First support platform; 2. Second support platform; 3. Control console; 4. Drive unit; 5. First clamping unit; 6. Second clamping unit; 7. Positioning unit; 8. Centering unit; 9. Adjustment unit; 10. Control ring; 11. Positioning ring; 12. Positioning rod; 13. Movable groove; 14. Slider; 15. Centering clamping block; 16. Return spring; 17. Rewinding groove; 18. Positioning block; 19. Connecting ring; 20. Control rope; 21. First control seat; 22. First rotating shaft; 23. First clamping unit 24. Holding seat; 25. First transmission wheel; 26. Second control seat; 27. Second rotating shaft; 28. Second clamping seat; 29. ​​Second transmission wheel; 30. Electric push rod; 31. Connecting rod; 32. Control block; 33. Control groove; 34. Control motor; 35. Drive shaft; 36. First drive wheel; 37. Second drive wheel; 38. Transmission belt; 39. Hydraulic rod; 40. Positioning platform; 41. Guide rod; 42. Guide block; 43. Adjustment wheel; 44. Adjustment groove; 45. Adjustment plate. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0034] like Figure 1-7 As shown, a positioning fixture for processing zirconia ceramic blocks includes: a first support platform 1 and a second support platform 2, and a control console 3 fixed to the upper surfaces of the first support platform 1 and the second support platform 2;

[0035] Drive unit 4, which is mounted on the console 3;

[0036] The first clamping part 5 and the second clamping part 6 are respectively disposed on the first support platform 1 and the second support platform 2, and are both connected to the driving part 4 in a transmission manner.

[0037] Positioning control unit 7 is mounted on the second support platform 2, which pushes the second clamping unit 6 closer to the first clamping unit 5;

[0038] Centering part 8 is disposed on the first clamping part 5;

[0039] Adjustment part 9, which is mounted on the first clamping part 5, is used to push the centering part 8 to move horizontally.

[0040] The drive unit 4, in conjunction with the adjustment unit 9, moves the centering unit 8 to converge and approach the zirconia material. It also controls the first clamping unit 5 and the second clamping unit 6 to simultaneously rotate the clamped material. In use, under the control of the adjustment unit 9, the centering unit 8 moves to the preset clamping position of the zirconia block. Then, the zirconia block to be ground is placed at the centering unit 8, ensuring one side of the zirconia block is tightly fitted against the first clamping unit 5. At this point, under the control of the drive unit 4, the first clamping unit 5 rotates. With the cooperation of the adjustment unit 9, the centering unit 8 is controlled to operate. Several centering clamps 15 in the centering unit 8 simultaneously approach the zirconia block, clamping and centering it, ensuring the center end of the zirconia block and the center end of the first clamping unit 5 are on the same axis, thus completing the automatic centering of the zirconia block. Furthermore, when processing zirconia blocks of the same specifications, only the centering clamp needs to be adjusted during the first clamping. The moving distance of block 15 is adjusted and then no further adjustment is needed. This allows for rapid centering of each zirconia block during clamping, effectively improving processing efficiency, reducing centering errors, and enhancing the grinding accuracy of the zirconia blocks. Furthermore, by controlling the moving distance of several centering blocks 15 in the centering section 8, clamping and centering of zirconia blocks of different sizes can be achieved, effectively improving the practicality of the device. After the zirconia block is centered, under the control of the positioning section 7, the second clamping section 6 is pushed closer to the first clamping section 5, thereby completing the stable clamping of the zirconia block. At this point, the centering section 8 is released from the zirconia block, and under the control of the adjusting section 9, the centering section 8 is moved away from the zirconia block to be processed, avoiding interference with subsequent grinding of the zirconia block. Finally, under the control of the driving section 4, the clamping section and the second clamping section 6 are rotated simultaneously, allowing the clamped zirconia block to rotate stably, facilitating the grinding process of the zirconia block.

[0041] Optionally, the centering part 8 includes a control ring 10 sleeved on the first clamping part 5, a positioning ring 11 rotatably mounted on the control ring 10, a plurality of positioning rods 12 fixed in a ring array outside the positioning ring 11, a plurality of movable grooves 13 respectively opened in the plurality of positioning rods 12, a plurality of sliders 14 respectively slidably mounted in the plurality of movable grooves 13, a plurality of centering clamps 15 respectively rotatably connected to the plurality of sliders 14, and a plurality of return springs 16 respectively disposed in the plurality of movable grooves 13 and fixedly connected at one end to the inner wall of the plurality of movable grooves 13.

[0042] The other ends of the plurality of return springs 16 are respectively fixedly connected to the plurality of sliders 14. When the zirconia ceramic block to be processed is placed between the plurality of centering clamps 15, the plurality of positioning clamps are pulled closer to each other, causing the plurality of sliders 14 to move in the plurality of movable slots 13, compressing the plurality of return springs 16, thereby causing the plurality of centering clamps 15 to move the same distance, clamping and centering the zirconia ceramic block, so that the center end of the zirconia ceramic block and the center end of the first clamping part 5 are on the same axis, reducing processing errors, ensuring the consistency of processed products, and reducing the time for workpiece clamping and adjustment, simplifying the processing flow, and effectively improving production efficiency. After the first clamping part 5 and the second clamping part 6 have completed clamping and fixing the zirconia ceramic block, the pulling of the plurality of centering clamps 15 is released. Under the elastic push of the plurality of return springs 16, the clamping and centering of the zirconia ceramic block can be released, which facilitates the subsequent processing of the zirconia ceramic block.

[0043] Optionally, the centering part 8 further includes a winding groove 17 formed on the control ring 10, a plurality of positioning blocks 18 fixed in a circular array within the winding groove 17, a plurality of connecting rings 19 movably sleeved on the outside of the plurality of positioning blocks 18, and a plurality of control ropes 20, one end of which is fixed to the plurality of connecting rings 19 and the other end of which is fixed to the plurality of centering clamps 15. In use, the control ring 10 is controlled to rotate, and under the pull of the plurality of positioning blocks 18, the plurality of control ropes 20 are wound into the winding groove 17, thereby causing the plurality of control ropes 20 to pull the plurality of centering clamps 15 simultaneously. Since one end of the control rope 20 is connected to the positioning block 18 through the connecting ring 19, the centering clamp 15 at the other end of the control rope 20 can rotate while being pulled, thereby preventing bending at the connection point of the two ends of the control rope 20 during winding, thus effectively improving the service life of the control rope 20.

[0044] Optionally, the first clamping part 5 includes a first control seat 21 fixed on the first support platform 1, a first rotating shaft 22 rotatably installed in the first control seat 21, a first clamping seat 23 and a first transmission wheel 24 respectively fixed to both ends of the first rotating shaft 22.

[0045] The second clamping part 6 includes a second control seat 25 near the second support platform 2, a second rotating shaft 26 rotatably installed in the second control seat 25, a second clamping seat 27 and a second transmission wheel 28 respectively fixed to both ends of the first rotating shaft 22;

[0046] The control ring 10 is movably sleeved on the outside of the first clamping seat 23. In use, under the control of the positioning component, the second clamping part 6 can be pushed closer to the first clamping part 5, so that the zirconia ceramic block initially clamped and centered by the centering part 8 is clamped between the first clamping seat 23 and the second clamping seat 27. When the drive part 4 controls and drives the first transmission wheel 24 and the second transmission wheel 28, the first clamping seat 23 and the second clamping seat 27 can drive the clamped zirconia ceramic block to rotate under the transmission of the first rotating shaft 22 and the second rotating shaft 26, so that the zirconia ceramic block can fully contact the processing equipment for processing.

[0047] Optionally, the adjustment unit 9 includes two electric push rods 29 symmetrically fixed on the first control seat 21, two connecting rods 30 with one end fixedly connected to the telescopic end of the two electric push rods 29 respectively, and the other end fixedly connected to the positioning ring 11, a plurality of control blocks 31 fixed in a ring array outside the first clamping seat 23, and a plurality of control slots 32 formed in a ring array on the inner wall of the control ring 10 and corresponding to the plurality of control blocks 31. In use, by activating the two electric push rods 29, the centering part 8 can be pushed to move horizontally under the control of the two connecting rods 30, thereby allowing the centering part 8 to approach and reach the zirconia ceramic block during use. The preset clamping position allows several control blocks 31 inside the first clamping seat 23 to be inserted into several control slots 32 on the inner wall of the control ring 10. At this time, during the controlled rotation of the first clamping seat 23, the control ring 10 can be controlled to rotate through the cooperation of several control blocks 31 and several control slots 32, thus completing the control work of the centering part 8. After the zirconia ceramic block is clamped and fixed by the first clamping part 5 and the clamping part, when the centering part 8 releases the clamping and centering of the zirconia ceramic block, the two electric push rods 29 are activated. Through the cooperation of the two connecting rods 30, the centering part 8 is driven to reset and move away from the clamped zirconia ceramic block to avoid affecting the subsequent processing of the zirconia ceramic block.

[0048] Optionally, the drive unit 4 includes a control motor 33 fixed on the control console 3, a drive shaft 34 rotatably mounted on the control console 3 and fixedly connected at one end to the output end of the control motor 33, a first drive wheel 35 fixedly sleeved on the drive shaft 34 and corresponding to the first transmission wheel 24, a second drive wheel 36 slidably mounted on the drive shaft 34 and corresponding to the second transmission wheel 28, and two transmission belts 37 sleeved outside the first transmission wheel 24 and the first drive wheel 35 and outside the second transmission wheel 28 and the second drive wheel 36. When the machining rotation after zirconia clamping needs to be completed, the drive control motor 33 starts the drive shaft 34 to rotate, thereby causing the first drive wheel 35 and the second drive wheel 36 to rotate synchronously, thus achieving the desired rotation. Driven by the two transmission belts 37, the first transmission wheel 24 and the second transmission wheel 28 in the first clamping part 5 and the second clamping part 6 rotate synchronously to drive the zirconia ceramic block clamped between the first clamping part 5 and the second clamping part 6 to rotate, facilitating the processing of the zirconia ceramic block. When the centering part 8 needs to perform the initial clamping and centering of the zirconia ceramic block, the first clamping seat 23 in the first clamping part 5 is driven to rotate. After the adjusting part 9 controls the centering part 8 to connect with the first clamping seat 23, a part of the centering part 8 is controlled to rotate to control the centering part 8 to work and perform the initial clamping and centering of the zirconia ceramic block. By achieving two functions with a single drive, the complexity of the mechanical structure is effectively reduced, the number of parts is reduced, the number of drivers and connecting parts is reduced, and the overall reliability of the system is improved.

[0049] Optionally, the positioning unit 7 includes a hydraulic rod 38 mounted on the second support platform 2, a positioning platform 39 fixed to the telescopic end of the hydraulic rod 38 and fixedly connected to the second control seat 25, two guide rods 40 symmetrically fixed on the second support platform 2, two guide blocks 41 slidably mounted on the two guide rods 40 and fixedly connected to the positioning platform 39, an adjusting wheel 42 movably sleeved outside the drive shaft 34 and rotatably connected to the second drive wheel 36, and an adjusting groove 43 formed on the adjusting wheel 42, one end of which is on the positioning platform 39, and the other end of which is on the second control seat 39. The adjusting plate 44, which extends into the adjusting groove 43, is activated by the hydraulic rod 38 after the initial centering and positioning of the zirconia ceramic block is completed. This pushes the control platform 39 to move horizontally in a stable manner under the guidance of the two guide rods 40 and the two guide blocks 41. This controls the second clamping part 6 to approach the first clamping part 5 and quickly complete the clamping and fixing of the zirconia ceramic block. When the control platform 39 is controlled to move, it will drive the adjusting plate 44 to move simultaneously, thereby allowing the adjusting wheel 42 to be driven and controlled to move horizontally along the drive shaft 34, so as to ensure the effective drive control of the drive part 4 on the second clamping part 6.

[0050] Working principle:

[0051] First, start the two electric push rods 29, which can push the centering part 8 to move horizontally under the control of the two connecting rods 30. Then, when in use, the centering part 8 can be pushed to approach and reach the preset clamping position of the zirconia ceramic block, so that the several control blocks 31 in the first clamping seat 23 are respectively inserted into the several control slots 32 on the inner wall of the control ring 10.

[0052] Next, the drive control motor 33 starts the drive shaft 34 to rotate, which in turn drives the first drive wheel 35 and the second drive wheel 36 to rotate synchronously. Under the drive of the two transmission belts 37, the first transmission wheel 24 and the second transmission wheel 28 in the first clamping part 5 and the second clamping part 6 rotate synchronously. Then, the rotation of the first clamping seat 23 in the first clamping part 5 drives the control ring 10 to rotate. Then, under the pull of several positioning blocks 18, several control ropes 20 are wound into the winding groove 17. Several control ropes 20 pull several centering clamps 15 at the same time. At this time, the zirconia ceramic block to be ground is placed at the centering part 8, and one side of the zirconia ceramic block is tightly attached to the first clamping part 5. Several centering clamps 15 approach the zirconia ceramic block at the same time to clamp and center the zirconia ceramic block, so that the center end of the zirconia ceramic block and the center end of the first clamping part 5 are on the same axis, thus completing the automatic centering of the zirconia ceramic block.

[0053] Afterwards, the hydraulic rod 38 is activated, pushing the control platform 39 to move horizontally in a stable manner under the guidance of the two guide rods 40 and the two guide blocks 41, so as to control the second clamping part 6 to approach the first clamping part 5 and quickly complete the clamping and fixing of the zirconia ceramic block. At this time, the centering part 8 releases the clamping of the zirconia ceramic block and the two electric push rods 29 are reset to avoid affecting the subsequent processing of the zirconia ceramic block.

[0054] Finally, the drive control motor 33 starts the drive shaft 34 to rotate, thereby causing the first drive wheel 35 and the second drive wheel 36 to rotate synchronously. Under the drive of the two transmission belts 37, the first transmission wheel 24 and the second transmission wheel 28 in the first clamping part 5 and the second clamping part 6 are controlled to rotate synchronously, so as to drive the zirconia ceramic block clamped between the first clamping part 5 and the second clamping part 6 to rotate, which facilitates the processing of the zirconia ceramic block.

[0055] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A positioning fixture for processing zirconia ceramic blocks, characterized in that, The utility model relates to a kind of positioning tool for zirconia porcelain block processing, including: First bearing platform (1) and second bearing platform (2), console (3) is fixed on the upper surface of the first bearing platform (1) and the second bearing platform (2); Drive part (4), the drive part (4) is installed on the console (3); First clamping part (5) and second clamping part (6), the first clamping part (5) and the second clamping part (6) are respectively arranged on the first bearing platform (1) and second bearing platform (2), and are all transmission connection with the drive part (4); Control position part (7), the control position part (7) is installed on the second bearing platform (2), and the second clamping part (6) is pushed to be close to the first clamping part (5); Centering part (8), the centering part (8) is arranged on the first clamping part (5); Adjusting part (9), the adjusting part (9) is installed on the first clamping part (5), to push the centering part (8) horizontal movement, wherein drive the drive part (4), can cooperate the adjusting part (9) activity, drive centering part (8) to heart convergence close to zirconia material, and can control the first clamping part (5) and the second clamping part (6) simultaneously drive the material of clamping to rotate.

2. The positioning tool for zirconia porcelain block processing according to claim 1, wherein the centering part (8) comprises a control ring (10) sleeved on the first clamping part (5), a positioning ring (11) rotatably installed on the control ring (10), a plurality of positioning rods (12) fixed in a ring array outside the positioning ring (11), a plurality of movable grooves (13) respectively formed in the plurality of positioning rods (12), a plurality of sliding blocks (14) respectively slidably installed in the plurality of movable grooves (13), a plurality of centering clamping blocks (15) respectively rotatably connected with the plurality of sliding blocks (14), a plurality of return springs (16) respectively arranged in the plurality of movable grooves (13) and fixedly connected with inner walls of the plurality of movable grooves (13) at one end; the other ends of the plurality of return springs (16) are fixedly connected with the plurality of sliding blocks (14).

3. The positioning tool for zirconia porcelain block processing according to claim 2, wherein the centering part (8) further comprises a winding groove (17) formed on the control ring (10), a plurality of positioning blocks (18) fixed in a ring array in the winding groove (17), a plurality of connecting rings (19) movably sleeved outside the plurality of positioning blocks (18), a plurality of control ropes (20) fixed at one end of the plurality of connecting rings (19) and at the other end of the plurality of centering clamping blocks (15).

4. The positioning tool for zirconia porcelain block processing according to claim 3, wherein the first clamping part (5) comprises a first control seat (21) fixed on the first bearing platform (1), a first rotating shaft (22) rotatably installed in the first control seat (21), a first clamping seat (23) and a first transmission wheel (24) fixed at both ends of the first rotating shaft (22). The second clamping part (6) comprises a second control seat (25) close to the second bearing table (2), a second rotating shaft (26) rotatably installed in the second control seat (25), a second clamping seat (27) fixed at two ends of the first rotating shaft (22) respectively, and a second transmission wheel (28); The control ring (10) is movably sleeved outside the first clamping seat (23). 5.The positioning tool for processing zirconia porcelain block according to claim 4, characterized in that, The adjusting part (9) comprises two electric push rods (29) symmetrically fixed on the first control seat (21), two connecting rods (30) with one end fixedly connected with the telescopic ends of the two electric push rods (29) respectively and the other end fixedly connected with the positioning ring (11), a plurality of control blocks (31) fixed in a ring array outside the first clamping seat (23), and a plurality of control grooves (32) opened in the inner wall of the control ring (10) and corresponding to the plurality of control blocks (31). 6.The positioning tool for processing zirconia porcelain block according to claim 5, characterized in that, The driving part (4) comprises a control motor (33) fixed on the control console (3), a driving shaft (34) rotatably installed on the control console (3) and with one end fixedly connected with the output end of the control motor (33), a first driving wheel (35) fixedly sleeved on the driving shaft (34) and corresponding to the first transmission wheel (24), a second driving wheel (36) slidably installed on the driving shaft (34) and corresponding to the second transmission wheel (28), and two transmission belts (37) sleeved outside the first transmission wheel (24) and the first driving wheel (35) and outside the second transmission wheel (28) and the second driving wheel (36). 7.The positioning tool for processing zirconia porcelain block according to claim 6, characterized in that, The position control part (7) comprises a hydraulic rod (38) installed on the second bearing table (2), a position control table (39) fixed on the telescopic end of the hydraulic rod (38) and fixedly connected with the second control seat (25), two guide rods (40) symmetrically fixed on the second bearing table (2), two guide blocks (41) slidably installed on the two guide rods (40) respectively and fixedly connected with the position control table (39), a position adjusting wheel (42) movably sleeved outside the driving shaft (34) and rotatably connected with the second driving wheel (36), a position adjusting groove (43) opened on the position adjusting wheel (42), and a position adjusting plate (44) with one end on the position control table (39) and the other end extending into the position adjusting groove (43).

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