A clamping device for superhard alloy workpieces

Abstract

The utility model discloses a kind of superhard alloy workpiece clamping devices, it belongs to superhard alloy processing technical field, including tool main body, automatic clamping fixed mechanism, front end automatic pressing mechanism and tail end automatic pressing mechanism;Main box of tool main body is equipped with main support surface;Automatic clamping fixed mechanism includes first screw rod, two linkage clamping plates and multiple guide columns;Two linkage clamping plates are respectively located in the left and right sides of main support surface, linkage clamping plate includes linkage plate and clamping contact plate, and several clamping contact plates are fixed on the side of linkage plate towards main support surface with interval;Two linkage plates are respectively threadedly connected with the both ends of first screw rod;Guide column is distributed on the left and right sides of main box, and the left and right movement of linkage clamping plate is guided;Front end automatic pressing mechanism, tail end automatic pressing mechanism are respectively used to press the front end and rear end of superhard alloy workpiece;Automatic clamping alignment can be realized, and the automation degree of similar superhard alloy workpiece clamping is improved.

Description

Technical Field

[0001] This utility model relates to the field of superhard alloy processing technology, specifically to a superhard alloy workpiece clamping device. Background Technology

[0002] The current market for large gas turbines is booming, and the demand for superhard alloy flat plate workpieces continues to rise. Since superhard alloy flat plate workpieces are core support components of gas turbines, they have high requirements for product characteristics and precision. During the processing, they require stable clamping and minimal structural deformation, thus requiring even higher stability of the product clamping device.

[0003] In addition, the required sizes and specifications of superhard alloy plates vary. In actual production and processing, due to the different product specifications and models, it is necessary to frequently change the clamping method and clamping accessories, resulting in a large waste of manpower and material resources. Furthermore, the frequent manual clamping and unloading of workpieces leads to problems such as low production efficiency, workpiece collisions, long crane occupancy time, high labor intensity for operators, and frequent quality problems.

[0004] To solve the above problems, it is necessary to design a device suitable for clamping superhard alloy flat workpieces. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides a superhard alloy workpiece clamping device that can automatically position and clamp superhard alloy workpieces, and is suitable for clamping superhard alloy workpieces of different specifications.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a clamping device for superhard alloy workpieces, including a tooling body, an automatic clamping and fixing mechanism, a front-end automatic clamping mechanism and a tail-end automatic clamping mechanism; The tooling body includes a main housing, and the main housing is provided with a main support surface; The automatic clamping and fixing mechanism includes a first lead screw, two linkage clamping plates, and multiple guide posts. The two linkage clamping plates are respectively located on the left and right sides of the main support surface. Each linkage clamping plate includes a linkage plate and a clamping contact plate. Several clamping contact plates are fixed at intervals on the side of the linkage plate facing the main support surface. The first lead screw is rotatably mounted on the main housing and has threads with opposite directions at both ends. The two linkage plates are respectively threaded to the two ends of the first lead screw. The guide posts are distributed on the left and right sides of the main housing to guide the left and right movement of the linkage clamping plates. The automatic front-end clamping mechanism is used to clamp the front end of the superhard alloy workpiece; The automatic tail clamping mechanism is used to clamp the rear end of the superhard alloy workpiece.

[0007] In the above-mentioned clamping device for superhard alloy workpieces, the side of the clamping contact plate facing the main support surface is partially concave. And / or, at least one end of the first lead screw is provided with a first prism.

[0008] In the above-mentioned superhard alloy workpiece clamping device, the front-end automatic clamping mechanism includes a front pressure plate and two front moving seats; the two front moving seats are respectively arranged on the left and right sides of the main housing and can move left and right relative to the main housing; the front pressure plate is located above the main support surface, and front adjustment channels are provided at both ends of the front pressure plate, the front adjustment channels extend in the left and right direction and pass through the front pressure plate vertically. A front pressing drive is fixedly mounted on the front movable seat, and a front pull rod is slidably mounted in the front adjustment channel. The lower end of the front pull rod is connected to the front pressing drive, and a limiting block is provided at the upper end. The limiting block is located above the front pressure plate.

[0009] In the aforementioned superhard alloy workpiece clamping device, the front-end automatic clamping mechanism includes a front lead screw, which is rotatably mounted on the main housing and extends to the left and right sides of the main support surface, respectively; the front lead screw is connected to the front drive assembly in the middle, and the two ends of the front lead screw are provided with threads of opposite directions, which are threaded to the two front moving seats, respectively. The main housing is provided with two front guide seats, which correspond to the two ends of the front lead screw respectively, and the front moving seat is slidably connected to the front guide seats.

[0010] In the above-mentioned superhard alloy workpiece clamping device, in the height direction, the front moving seat is located below the front guide seat; the lower side of the front guide seat is provided with a front guide groove with the opening facing downward; a front guide rod is fixedly installed on the front moving seat, and the upper end of the front guide rod is slidably installed in the front guide groove. And / or, at least one end of the front lead screw is provided with a second prism; And / or, the front adjustment channel opens on the left or right end face of the front pressure plate.

[0011] In the above-mentioned superhard alloy workpiece clamping device, the tail end automatic clamping mechanism includes a rear moving seat and a rear pressing block; the rear moving seat is located on the rear side of the main housing and can move back and forth relative to the main housing; the rear moving seat is provided with a rear clamping drive element, which is connected to the rear pressing block and drives the rear pressing block to move up and down.

[0012] In the above-mentioned superhard alloy workpiece clamping device, the tail end automatic clamping mechanism further includes a rear lead screw and a rear drive assembly. The rear drive assembly is located at the rear end of the main housing, and the rear lead screw is rotatably mounted on the main housing and is connected to the rear drive assembly in a transmission manner. The rear lead screw extends forward and backward, and the rear movable seat is threadedly connected to the rear lead screw; The rear end of the main housing is also provided with a rear guide seat, and the rear movable seat is slidably connected to the rear guide groove of the rear guide seat through a rear guide rod.

[0013] In the above-mentioned superhard alloy workpiece clamping device, the rear guide seat is located above the rear movable seat, and the rear guide groove is located on the lower side of the rear guide seat; And / or, at least one end of the rear lead screw is provided with a third prism; And / or, the rear guide seat is provided with a centrally located rear adjustment channel, the rear adjustment channel extends front and rear, and the rear pressing drive element passes through the rear adjustment channel and is connected to the rear pressure block located above the rear guide seat.

[0014] In the above-mentioned clamping device for superhard alloy workpieces, the front end of the main support surface is connected to a front floating support surface, and the front floating support surface is provided with a front adjusting support stud; the front floating support surface is lower than the main support surface, and the height of the front adjusting support stud protruding upward from the front floating support surface is adjustable.

[0015] In the above-mentioned clamping device for superhard alloy workpieces, a rear floating support surface is connected to the rear end of the main support surface, and a rear adjusting support stud is installed on the rear floating support surface; the rear floating support surface is lower than the main support surface, and the height of the rear adjusting support stud protruding upward from the rear floating support surface is adjustable.

[0016] The beneficial effects of this utility model are as follows: The superhard alloy workpiece clamping device uses the main support surface of the tooling body to support the superhard alloy workpiece. The two linkage clamping plates of the automatic clamping and fixing mechanism move synchronously from the left and right sides respectively, which can push the superhard alloy workpiece to move and achieve positioning. The front-end automatic clamping mechanism and the rear-end automatic clamping mechanism realize the front and rear end clamping of the superhard alloy workpiece, complete the clamping of the superhard alloy workpiece, and the clamping reliability is high. Meanwhile, the distance between the two front pull rods of the front automatic clamping mechanism is adjustable, so as to adapt to the width changes of different superhard alloy workpieces; the rear pressure block of the tail automatic clamping mechanism can be adjusted back and forth, so as to adapt to the length changes of different superhard alloy workpieces. The superhard alloy workpiece clamping device can achieve automatic clamping and alignment, improve efficiency, greatly reduce the labor intensity of operators, and improve the automation level of clamping similar superhard alloy workpieces.

[0017] In addition, the rear floating support surface, the rear adjustable support stud, the front floating support surface, and the front adjustable support stud further improve the reliability of supporting and clamping superhard alloy workpieces, and greatly enhance the applicability to different superhard alloy workpiece shapes. Attached Figure Description

[0018] Figure 1 A first-person view schematic diagram of the clamping device for superhard alloy workpieces. Figure 2 for Figure 1 Enlarged view of region D in the middle; Figure 3 A schematic diagram of the structure of a clamping device for superhard alloy workpieces from a second-view perspective; Figure 4 A schematic diagram of the structure of a clamping device for superhard alloy workpieces from a third-person perspective; Figure 5 for Figure 4 Enlarged view of region H in the middle; Figure 6 A bottom view and a partial enlarged view of the clamping device for superhard alloy workpieces.

[0019] In the picture: 100-Main fixture body; 101-Main housing; 102-Front guide seat; 103-Front guide groove; 104-Front end adjusting support stud; 105-Main support surface; 106-Front floating support surface; 107-Rear guide seat; 108-Rear adjusting channel; 109-Rear guide groove; 110-Rear end adjusting support stud; 111-Rear floating support surface; 200-Automatic clamping and fixing mechanism; 201-Linkage plate; 202-Clamping contact plate; 203-Guide post; 204-First lead screw; 205-First prism; 206-First drive assembly; 300 - Automatic tail clamping mechanism; 301 - Rear clamping block; 302 - Rear lead screw; 303 - Rear drive assembly; 304 - Rear clamping drive element; 305 - Rear guide rod; 306 - Rear moving seat; 307 - Third prism; 400-Front-end automatic clamping mechanism; 401-Front pressure plate; 402-Front adjustment channel; 403-Front pull rod; 404-Front clamping drive component; 405-Front guide rod; 406-Front moving seat; 407-Front lead screw; 408-Second prism; 409-Front drive assembly. Detailed Implementation

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0021] Please refer to Figures 1-6This invention provides an embodiment of a superhard alloy workpiece clamping device, comprising a fixture body 100, an automatic clamping and fixing mechanism 200, a front-end automatic pressing mechanism 400, and a rear-end automatic pressing mechanism 300. The fixture body 100 includes a main housing 101, which can be made of metal plate by welding. The main housing 101 not only has a main support surface 105 for placing the superhard alloy workpiece, but also supports and mounts the automatic clamping and fixing mechanism 200, the front-end automatic pressing mechanism 400, and the rear-end automatic pressing mechanism 300. In use, the superhard alloy workpiece is placed on the main support surface 105. The automatic clamping and fixing mechanism 200 positions and clamps the superhard alloy workpiece on both sides in the width direction, while the front-end automatic pressing mechanism 400 and the rear-end automatic pressing mechanism 300 press against the two ends in the length direction of the superhard alloy workpiece, respectively. This device can automatically clamp superhard alloy workpieces, automatically position them, quickly clamp them, and achieve high efficiency, greatly reducing the labor intensity of clamping operations, increasing the operator's satisfaction index, and ensuring safety and reliability.

[0022] The automatic clamping and fixing mechanism 200 includes two linkage clamping plates and multiple guide posts 203. The two linkage clamping plates are located on the left and right sides of the main support surface 105, respectively. Each linkage clamping plate includes a linkage plate 201 and clamping contact plates 202. The number of clamping contact plates 202 is multiple, for example, 3-15. Several clamping contact plates 202 are fixed at intervals on the side of the linkage plate 201 facing the main support surface 105. Since the clamping contact plates 202 protrude from the side of the linkage plate 201, only the clamping contact plates 202 contact the superhard alloy workpiece during the clamping operation. Furthermore, the side of the clamping contact plates 202 facing the main support surface 105 is partially concave to avoid interference affecting the positioning accuracy.

[0023] Guide posts 203 are distributed on the left and right sides of the main housing 101, corresponding to the positions of clamping contact plates 202. Corresponding to the positions of the guide posts 203, both the linkage plate 201 and the clamping contact plate 202 are provided with through holes. The difference is that the inner diameter of the through hole on the clamping contact plate 202 matches the outer diameter of the guide post 203, and the two slide together to guide the left and right movement of the linkage clamping plate. The through hole on the linkage plate 201 is much larger than the outer diameter of the guide post 203, allowing the guide post 203 to pass through. Therefore, the cross-section of the through hole on the linkage plate 201 is not limited by the shape of the guide post 203 and can be any shape such as circular or rectangular.

[0024] When using the clamping fixture, it is necessary to ensure that the two linkage clamping plates move synchronously, either moving closer together or further apart. The automatic clamping and fixing mechanism 200 also includes a first lead screw 204, which is rotatably mounted on the main housing 101, preferably in the middle of the main housing 101 in the front-rear direction. The two ends of the first lead screw 204 are provided with external threads of opposite directions, which are threaded to the two linkage plates 201 respectively. Figure 6As shown, a first drive assembly 206 is installed on the main housing 101 to drive the first lead screw 204 to rotate. Exemplarily, the first drive assembly 206 includes a motor, a reducer, and a synchronous belt. The synchronous belt transmits the power of the motor to the first lead screw 204, while the reducer reduces the high speed of the motor output shaft to the speed required for the first lead screw 204 to adjust. With the cooperation of the guide column 203, the first lead screw 204 drives the two linkage plates 201 to move closer or further away, which is suitable for positioning and clamping of superhard alloy workpieces of different widths. When the two linkage plates 201 move closer, they adjust the superhard alloy workpiece to the middle of the main support surface 105, completing the positioning in the width direction. At the same time, it also facilitates the assembly and disassembly of the superhard alloy workpiece.

[0025] The integrated linkage plate 201 and clamping contact plate 202 ensure that the ultra-hard alloy workpiece is centered, with uniform and precise clamping force. The first lead screw 204 ensures stable opening and closing, and its forward and reverse thread design allows the two linkage clamping plates to move synchronously and maintain stability. Multiple guide posts 203 slide in conjunction with the clamping contact plate 202 to ensure stable and smooth sliding of the linkage clamping plates. This mechanism is suitable for various width specifications and sizes.

[0026] Preferably, at least one end of the first lead screw 204 is provided with a first prism 205. If the first drive assembly 206 fails, the first lead screw 204 can be manually rotated using tools such as a wrench.

[0027] The front-end automatic clamping mechanism 400 includes a front lead screw 407, a front moving seat 406, a front pressure plate 401, etc. The front lead screw 407 is rotatably mounted on the front end of the main housing 101, and its two ends extend to the left and right sides of the main support surface 105, respectively. The middle part of the front lead screw 407 is connected to the front drive assembly 409, which provides rotational power to the front lead screw 407. The two ends of the front lead screw 407 are provided with threads of opposite directions, which are threaded to the front moving seats 406, respectively. Exemplarily, the front drive assembly 409 includes a motor, a reducer, a synchronous belt, etc. The front lead screw 407 is provided with a synchronous pulley, and the power of the motor output shaft is transmitted to the front lead screw 407 by the synchronous belt. The rotation of the front lead screw 407 can cause the two front moving seats 406 to move synchronously closer or further apart. The main housing 101 is provided with two front guide seats 102, which correspond to the positions of the two ends of the front lead screw 407, respectively. Preferably, in the height direction, the front movable seat 406 is located below the front guide seat 102. The lower side of the front guide seat 102 is provided with a front guide groove 103, with the opening facing downwards, making it difficult for foreign objects to accumulate. A front guide rod 405 is fixedly installed on the front movable seat 406. The upper end of the front guide rod 405 is slidably disposed in the front guide groove 103, allowing it to move smoothly relative to the front movable seat 406.

[0028] The front pressure plate 401 is located above the main support surface 105. Front adjustment channels 402 are provided at both ends of the front pressure plate 401, extending horizontally and penetrating vertically through the front pressure plate 401. A front pull rod 403 and a front clamping drive 404 are provided between the front pressure plate 401 and the front moving seat 406. The front clamping drive 404 can be a hydraulic component, such as a jack, and is fixedly installed on the front moving seat 406. The front pull rod 403 is slidably disposed within the front adjustment channel 402, with its lower end connected to the front clamping drive 404 and its upper end located above the front pressure plate 401. A limiting block is provided at the upper end of the front pull rod 403. The outer diameter of the limiting block is larger than that of the front adjustment channel 402. When the front clamping drive 404 pulls the front pull rod 403 downwards, the limiting block can apply a downward pressing force to the upper side of the front pressure plate 401, thereby pressing the superhard alloy workpiece onto the main support surface 105.

[0029] For superhard alloy workpieces of different specifications, the front-end automatic clamping mechanism 400 can adjust the height of the front pressure plate 401 and the width between the two front pull rods 403. Preferably, the front end of the main support surface 105 is connected to a front floating support surface 106, which has multiple threaded holes machined on it. Front-end adjusting support studs 104 are installed in the threaded holes. The front floating support surface 106 is lower than the main support surface 105, and the height of the front-end adjusting support studs 104 protruding upward from the front floating support surface 106 is adjustable, allowing for support and clamping on the underside of the superhard alloy workpiece. The multiple front-end adjusting support studs 104 are distributed in both the left-right and front-back directions to accommodate superhard alloy workpieces of different lengths and widths. The front adjustment channel 402 is designed with an opening on the left or right end face of the front pressure plate 401 to facilitate the loading and unloading of the front pull rods 403. Similarly, at least one end of the front lead screw 407 is provided with a second prism 408, so that in the event of failure of the front drive assembly 409, the front lead screw 407 can be manually rotated using tools such as a wrench.

[0030] The tail-end automatic clamping mechanism 300 includes a rear movable seat 306, a rear lead screw 302, and a rear drive assembly 303. The rear drive assembly 303 is located at the rear end of the main housing 101. The rear lead screw 302 is rotatably mounted on the main housing 101 and is connected to the rear drive assembly 303 for transmission. The rear lead screw 302 extends forward and backward, and the rear movable seat 306 is threadedly connected to the rear lead screw 302. A rear guide seat 107 is also provided at the rear end of the main housing 101. The rear guide seat 107 is located above the rear lead screw 302 and the rear movable seat 306. The rear movable seat 306 is slidably connected to the rear guide groove 109 of the rear guide seat 107 through a rear guide rod 305. The rear movable seat 306 is equipped with a rear clamping drive element 304, which can be a hydraulic component, such as a jack, and is fixedly installed on the rear movable seat 306. The rear clamping drive element 304 can be directly connected to the rear pressure block 301 or connected to the rear pressure block 301 through a rear pull rod. The rear pressure block 301 can clamp the rear end of the superhard alloy workpiece. Because the length and height of the superhard alloy workpieces vary, the automatic tail clamping mechanism 300 can adjust the height and front-back position of the rear pressure block 301.

[0031] Preferably, at least one end of the rear lead screw 302 is provided with a third prism 307, which can be a square prism, a hexagonal prism, etc. If the rear drive assembly 303 fails, the rear lead screw 302 can be rotated using a wrench or other tools.

[0032] The rear guide seat 107 is centrally provided with a rear adjustment channel 108, which runs vertically through the rear guide seat 107 and extends forward and backward. The hydraulic rod or pull rod of the rear clamping drive element 304 passes through the rear adjustment channel 108 and is connected to the rear pressure block 301 located above the rear guide seat 107.

[0033] Furthermore, the rear end of the main support surface 105 is connected to a rear floating support surface 111. The rear floating support surface 111 has multiple threaded holes, and a rear adjusting support stud 110 is installed in the threaded holes. The rear floating support surface 111 is lower than the main support surface 105, and the rear adjusting support stud 110 protrudes upward from the rear floating support surface 111 at an adjustable height. Together with the rear pressure block 301, it achieves the best support and clamping effect.

[0034] When clamping superhard alloy workpieces, First, adjust the two linkage clamping plates to the widest distance, remove the front pressure plate 401, adjust the front adjusting support stud 104 and the rear adjusting support stud 110 to the highest position and adjust them to the maximum support distance in the left and right directions. At the same time, the rear pressure block 301 is also adjusted to the highest and rearmost position; in other words, ensure that the support space of the clamping device is maximized. Then, the superhard alloy workpiece is placed on the main housing 101, and the main support surface 105 supports the superhard alloy workpiece. In this step, the front adjustment support stud 104 and the rear adjustment support stud 110 can be adjusted to obtain the best support and clamping effect. Finally, after the superhard alloy workpiece is positioned by the automatic clamping and fixing mechanism 200, the front pressure plate 401 of the front automatic pressing mechanism 400 and the rear pressure block 301 of the rear automatic pressing mechanism 300 press the front and rear ends of the superhard alloy workpiece respectively.

[0035] 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 clamping device for superhard alloy workpieces, characterized in that, It includes a tooling body (100), an automatic clamping and fixing mechanism (200), a front-end automatic clamping mechanism (400), and a rear-end automatic clamping mechanism (300). The tooling body (100) includes a main housing (101), and the main housing (101) is provided with a main support surface (105). The automatic clamping and fixing mechanism (200) includes a first lead screw (204), two linkage clamping plates, and multiple guide posts (203); the two linkage clamping plates are respectively located on the left and right sides of the main support surface (105), and each linkage clamping plate includes a linkage plate (201) and a clamping contact plate (202), and a plurality of clamping contact plates (202) are fixed at intervals on the side of the linkage plate (201) facing the main support surface (105); the first lead screw (204) is rotatably mounted on the main housing (101), and has threads with opposite directions at both ends, and the two linkage plates (201) are respectively threaded to the two ends of the first lead screw (204); the guide posts (203) are distributed on the left and right sides of the main housing (101) to guide the left and right movement of the linkage clamping plates; The front-end automatic clamping mechanism (400) is used to clamp the front end of the superhard alloy workpiece; The tail-end automatic clamping mechanism (300) is used to clamp the rear end of the superhard alloy workpiece.

2. The superhard alloy workpiece clamping device according to claim 1, characterized in that, The clamping contact plate (202) is partially recessed on the side facing the main support surface (105); And / or, at least one end of the first lead screw (204) is provided with a first prism (205).

3. The superhard alloy workpiece clamping device according to claim 1, characterized in that, The front-end automatic pressing mechanism (400) includes a front pressure plate (401) and two front moving seats (406); the two front moving seats (406) are respectively arranged on the left and right sides of the main housing (101) and can move left and right relative to the main housing (101); the front pressure plate (401) is located above the main support surface (105), and front adjustment channels (402) are provided at both ends of the front pressure plate (401), the front adjustment channels (402) extend in the left and right direction and pass through the front pressure plate (401) vertically. A front pressing drive (404) is fixedly provided on the front moving seat (406), and a front pull rod (403) is slidably provided in the front adjustment channel (402). The lower end of the front pull rod (403) is connected to the front pressing drive (404), and a limiting block is provided at the upper end. The limiting block is located above the front pressure plate (401).

4. The superhard alloy workpiece clamping device according to claim 3, characterized in that, The front-end automatic pressing mechanism (400) includes a front lead screw (407), which is rotatably mounted on the main housing (101) and extends to the left and right sides of the main support surface (105) respectively. The front lead screw (407) is connected to the front drive assembly (409) in the middle. The two ends of the front lead screw (407) are provided with threads of opposite directions, which are threaded to the two front moving seats (406) respectively. The main housing (101) is provided with two front guide seats (102), and the two front guide seats (102) correspond to the two ends of the front lead screw (407) respectively. The front moving seat (406) is slidably connected to the front guide seats (102).

5. The superhard alloy workpiece clamping device according to claim 4, characterized in that, In the height direction, the front movable seat (406) is located below the front guide seat (102); the lower side of the front guide seat (102) is provided with a front guide groove (103) with the opening facing downward; a front guide rod (405) is fixedly installed on the front movable seat (406), and the upper end of the front guide rod (405) is slidably installed in the front guide groove (103); And / or, at least one end of the front lead screw (407) is provided with a second prism (408). And / or, the front adjustment channel (402) opens on the left or right end face of the front pressure plate (401).

6. The superhard alloy workpiece clamping device according to claim 1, characterized in that, The tail end automatic pressing mechanism (300) includes a rear moving seat (306) and a rear pressing block (301); the rear moving seat (306) is located on the rear side of the main box (101) and can move back and forth relative to the main box (101); the rear moving seat (306) is provided with a rear pressing drive element (304), the rear pressing drive element (304) is connected to the rear pressing block (301) and drives the rear pressing block (301) to move up and down.

7. The superhard alloy workpiece clamping device according to claim 6, characterized in that, The tail end automatic clamping mechanism (300) also includes a rear lead screw (302) and a rear drive assembly (303). The rear drive assembly (303) is located at the rear end of the main housing (101). The rear lead screw (302) is rotatably mounted on the main housing (101) and is connected to the rear drive assembly (303) in a transmission connection. The rear lead screw (302) extends forward and backward, and the rear movable seat (306) is threadedly connected to the rear lead screw (302); The rear end of the main housing (101) is also provided with a rear guide seat (107), and the rear movable seat (306) is slidably connected to the rear guide groove (109) of the rear guide seat (107) through the rear guide rod (305).

8. The superhard alloy workpiece clamping device according to claim 7, characterized in that, The rear guide seat (107) is located above the rear movable seat (306), and the rear guide groove (109) is located on the lower side of the rear guide seat (107); And / or, at least one end of the rear lead screw (302) is provided with a third prism (307). And / or, the rear guide seat (107) is provided with a centrally located rear adjustment channel (108), the rear adjustment channel (108) extends forward and backward, and the rear pressing drive element (304) passes through the rear adjustment channel (108) and is connected to the rear pressure block (301) located above the rear guide seat (107).

9. The superhard alloy workpiece clamping device according to claim 1, characterized in that, The front end of the main support surface (105) is connected to a front floating support surface (106), and the front floating support surface (106) is provided with a front adjusting support stud (104); the front floating support surface (106) is lower than the main support surface (105), and the front adjusting support stud (104) protrudes upward from the front floating support surface (106) at an adjustable height.

10. A clamping device for superhard alloy workpieces according to claim 1, characterized in that, The rear end of the main support surface (105) is connected to a rear floating support surface (111), and the rear floating support surface (111) is equipped with a rear adjustable support stud (110); the rear floating support surface (111) is lower than the main support surface (105), and the rear adjustable support stud (110) protrudes upward from the rear floating support surface (111) at an adjustable height.

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