Floating type clamp for special-shaped workpiece

Abstract

The utility model discloses a floating clamp for special-shaped workpieces, which comprises a controller, a bottom plate and a plurality of clamp mechanisms in communication connection with the controller. A plurality of first sliding grooves are formed in the top of the bottom plate at intervals in the width direction of the bottom plate, and a plurality of second sliding grooves perpendicular to and communicating with the first sliding grooves are formed in the top of the bottom plate at intervals in the length direction of the bottom plate. An inverted T-shaped sliding rod is rotationally arranged at the bottom of a connecting seat in the clamp mechanism; a mounting groove matched with the T-shaped sliding rod is formed in the bottom of the connecting base in the axial direction, and a distance detection piece in communication connection with the controller is embedded in the top wall of the mounting groove. According to the clamp, complex assembly is not needed, only the clamp mechanisms with the corresponding number need to be installed on the bottom plate according to use requirements, then the positions of the clamp mechanisms are moved and adjusted, the connecting bases on the clamp mechanisms are rotated, locking and unlocking can be achieved, workpieces can be further clamped, the workpieces of different shapes and sizes can be clamped, and the clamping efficiency is improved. And the universality is high.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically to a floating fixture for irregularly shaped workpieces. Background Technology

[0002] A fixture is a device used in mechanical manufacturing to fix a workpiece in the correct position for machining or inspection. It is also called a clamp, gripper, etc. In engineering systems such as machinery, vehicle manufacturing, and aerospace, any device used to quickly, conveniently, and safely install workpieces can be called a fixture. Examples include welding fixtures, inspection fixtures, assembly fixtures, and machine tool fixtures, with machine tool fixtures being the most common. When machining workpieces on a machine tool, to ensure that the workpiece surface meets the technical requirements specified in the drawings, such as dimensions, geometry, and positional accuracy relative to other surfaces, the workpiece must be properly positioned and clamped before machining. Existing clamps, when in use, lack elasticity during clamping, resulting in rigid contact between the jaws and the workpiece, which can damage the workpiece. Damage necessitates workpiece replacement, increasing costs; it also leads to decreased machining accuracy and reduced production quality.

[0003] Traditional fixtures generally suffer from the following drawbacks: they rely primarily on manual addition of pads, repeated manual finishing, and trial cutting to optimize parameters based on engineers' experience to control machining deformation. This process involves long iteration cycles and cumbersome clamping procedures, thus lacking versatility. Furthermore, the release of material stress during clamping leads to significant deformation, easily damaging the workpiece with a damage rate as high as 50%. Additionally, it is difficult for personnel to accurately determine the deformation form and amount of structural components, making it impossible to guarantee dimensional accuracy. Utility Model Content

[0004] The purpose of this utility model is to provide a floating fixture for irregularly shaped workpieces to solve the problems of cumbersome assembly and lack of versatility of existing fixtures.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A floating fixture for irregularly shaped workpieces includes: a controller, a base plate, and a plurality of clamping mechanisms that are slidably disposed on the base plate and spaced apart, wherein the clamping mechanisms are communicatively connected to the controller.

[0007] The top of the base plate is provided with several first sliding grooves spaced apart along its width direction, and the top of the base plate is provided with several second sliding grooves spaced apart along its length direction, which are perpendicular to and connected to the first sliding grooves; the bottom of the connecting seat in the clamping mechanism is rotatably provided with an inverted T-shaped sliding rod, and the bottom end of the T-shaped sliding rod slides in cooperation with the first and second sliding grooves.

[0008] The bottom of the connecting seat has an axially oriented mounting groove that matches the T-shaped sliding rod. The top wall of the mounting groove is fitted with a distance detection element that communicates with the controller. When the connecting seat is rotated and the T-shaped sliding rod moves upward along the mounting groove, the connecting seat is locked to the base plate by the T-shaped sliding rod when the detection end of the distance detection element contacts the top of the T-shaped sliding rod.

[0009] Furthermore, the top outer wall of the aforementioned T-shaped sliding rod is provided with a spiral guide groove, the inner wall of the mounting groove is provided with a telescopic block that slides with the spiral guide groove, and the bottom walls at both ends of the spiral guide groove are respectively provided with locking holes that engage with the telescopic ends of the telescopic block.

[0010] Furthermore, the aforementioned telescopic block includes a block and a return spring. The inner wall of the mounting groove is provided with a mounting hole for mounting the block, and the return spring is connected between the bottom wall of the mounting hole and the block. The block slides in conjunction with the spiral guide groove.

[0011] Furthermore, the first and second slides are evenly spaced apart, and the cross-sections of the first and second slides are inverted T-shaped structures.

[0012] Furthermore, the clamping mechanism also includes a vertical plate vertically disposed on one side of the top of the connecting seat, a driving component disposed on the top of the connecting seat and communicatively connected to the controller, a bidirectional screw disposed on the output end of the driving component and parallel to the vertical plate, and a push block threadedly connected to both ends of the bidirectional screw and slidingly engaged with the vertical plate.

[0013] The bottom of the upper push block is rotatably equipped with an upper clamp that slides with the bidirectional screw, and the top of the lower push block is rotatably equipped with a lower clamp that slides with the bidirectional screw. The upper clamp and the lower clamp correspond to each other, and the upper clamp and the lower clamp are respectively equipped with an auxiliary clamping component and a position detection component that communicates with the controller on the opposite side.

[0014] Furthermore, the auxiliary clamping components on the upper clamp and the lower clamp are distributed alternately.

[0015] Furthermore, the aforementioned auxiliary clamping assembly includes an auxiliary clamping block, a spring, and a fixing rod. The upper clamp and the lower clamp each have a groove on their opposite sides that matches the auxiliary clamping block, and the depth of the groove is greater than the thickness of the auxiliary clamping block. The fixing rod is disposed on the bottom wall of the groove, and the spring is connected between the bottom wall of the groove and the auxiliary clamping block and is located on the outside of the fixing rod.

[0016] When the auxiliary clamping block contacts the end of the fixing rod, the end face of the auxiliary clamping block is flush with the end face of the corresponding upper / lower clamp.

[0017] Furthermore, the aforementioned upper clamp includes an upper connecting ring rotatably disposed at the bottom of the upper push block and slidingly engaged with a bidirectional screw, and an upper clamping claw disposed on the outer wall of the upper connecting ring. The upper connecting ring is locked onto the corresponding push block by screws.

[0018] The lower clamp includes a lower connecting ring rotatably mounted on the top of the lower push block and slidingly engaged with a bidirectional screw, and a lower jaw disposed on the outer wall of the lower connecting ring. The lower jaw corresponds to the upper jaw. The lower connecting ring is locked onto the corresponding push block by screws. Grooves are respectively provided at the bottom of the upper jaw and the top of the lower jaw. Position detection elements that communicate with the controller are respectively provided at the bottom of the upper jaw and the top of the lower jaw.

[0019] Furthermore, the top of the upper jaw and the bottom of the lower jaw are respectively provided with a number of threaded holes that are connected to screws at an annular interval.

[0020] Furthermore, a groove is provided along the axial direction of the vertical plate, and a slider matching the groove is provided on the push block, with a ball bearing provided on the side of the slider facing the bottom wall of the groove.

[0021] This utility model has the following beneficial effects:

[0022] 1. The floating clamp for irregularly shaped workpieces of this utility model, by opening a first and second sliding groove on the base plate, allows the position of the clamping mechanism on the base plate to be adjusted according to the shape and requirements of the workpiece, thus facilitating the clamping of workpieces of different shapes and sizes. When it is necessary to lock the clamping mechanism, rotating the connecting seat of the clamping mechanism causes the top of the T-shaped sliding rod to move along the top wall of the mounting groove until it contacts the detection end of the distance detection element. At this time, the bottom of the connecting seat is in close contact with the top surface of the base plate, thus locking the connecting seat to the base plate. The distance detection element is used to detect the distance between the T-shaped sliding rod and its detection end, thereby feeding the measurement result back to the controller. The controller can display whether the clamping mechanism is in a locked state. Therefore, the clamp of this utility model does not require complex assembly. It is only necessary to place the corresponding number of clamping mechanisms on the base plate according to the usage requirements, then move and adjust the position of the clamping mechanism, and rotate the connecting seat on the clamping mechanism to lock and unlock, and then clamp the workpiece. It can clamp workpieces of different shapes and sizes, and has strong versatility and convenient operation.

[0023] 2. The floating clamp for irregularly shaped workpieces of this utility model, when the connecting seat is rotated, causes the telescopic block to move along the spiral guide groove, which in turn causes the T-shaped sliding rod to move upward along the mounting groove. When the top of the T-shaped sliding rod contacts the detection end of the distance detection piece, the telescopic block moves to the lower end of the spiral guide groove. Under the action of elastic force, the telescopic block extends into the locking hole at the lower end and engages with it. Reverse rotation of the connecting seat can move the telescopic block out of the locking hole. Further reverse rotation of the connecting seat causes the telescopic block to move in the opposite direction along the spiral guide groove. When the telescopic block moves to the upper end of the spiral guide groove, under the action of elastic force, the telescopic block engages with the locking hole at the upper end, realizing the unlocking of the connecting seat and the base plate. At this time, the position of the clamping mechanism can be moved and adjusted, making operation convenient.

[0024] 3. The clamping mechanism of this utility model drives a bidirectional screw to rotate via a drive component. The rotation of the bidirectional screw causes two pushing blocks to move closer or further apart, which in turn causes the upper and lower clamps to move closer or further apart. When the two clamps move closer together, they can clamp the workpiece. When clamping the workpiece, the auxiliary clamping component first contacts the surface of the workpiece. As the two clamps move closer together, the auxiliary clamping component is compressed. When both position detection components are in contact with the workpiece, they feed back the position information to the controller. The controller controls the drive component to pause, and the workpiece is further clamped by the auxiliary clamping component, thus avoiding damage to the workpiece caused by excessive clamping force. The cooperation between the auxiliary clamping component and the upper and lower clamps ensures that the workpiece is clamped without damaging its outer surface, and it can clamp workpieces of different sizes and shapes, making it convenient to use.

[0025] 4. In this utility model, when both the upper and lower clamps are in contact with the workpiece, the drive component stops rotating, thus pausing the movement of the upper and lower clamps. Under the elastic force of the spring, the auxiliary clamping block can contact the workpiece and provide auxiliary clamping, greatly reducing damage to the workpiece and minimizing deformation, thereby improving production efficiency. The fixed rod limits the movement of the auxiliary clamping block, preventing it from entering the groove for irregularly shaped workpieces, thus ensuring that the auxiliary clamping block can always clamp the workpiece. Furthermore, the auxiliary clamping components on the upper and lower clamps are staggered, allowing clamping at different positions on both sides of the workpiece, thereby generating clamping force at different positions on both sides of the workpiece, resulting in more stable clamping. Attached Figure Description

[0026] Figure 1 A side view of the floating fixture for irregularly shaped workpieces;

[0027] Figure 2 This is a structural schematic diagram of the base plate;

[0028] Figure 3This is a cross-sectional view of the connecting seat and the T-shaped sliding rod.

[0029] Figure 4 for Figure 3 A magnified structural diagram at point A;

[0030] Figure 5 This is a schematic diagram of the clamping mechanism;

[0031] Figure 6 This is a schematic diagram of the clamping surfaces of the upper and lower clamps;

[0032] Figure 7 This is a cross-sectional view of the clamping mechanism.

[0033] Figure 8 for Figure 7 A magnified structural diagram at point B.

[0034] In the diagram: 1. Base plate; 11. First slide groove; 12. Second slide groove; 2. Clamping mechanism; 21. Connecting seat; 211. Mounting groove; 212. Distance detection component; 213. Telescopic block; 22. Vertical plate; 221. Slide groove; 23. Driving component; 24. Bidirectional screw; 25. Push block; 251. Slider; 26. Upper clamp; 261. Upper connecting ring; 262. Upper jaw; 27. Lower clamp; 271. Lower connecting ring; 272. Lower jaw; 3. T-shaped sliding rod; 31. Spiral guide groove; 32. Locking hole; 4. Auxiliary clamping assembly; 41. Auxiliary clamping block; 42. Spring; 43. Fixing rod; 5. Position detection component. Detailed Implementation

[0035] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0036] like Figures 1 to 4 As shown, an embodiment of this utility model provides a floating fixture for irregularly shaped workpieces, including: a controller, a base plate 1, and a plurality of clamping mechanisms 2 slidably disposed on the base plate 1 and spaced apart, the clamping mechanisms 2 being communicatively connected to the controller; specifically, the top of the base plate 1 has a plurality of first sliding grooves 11 spaced apart along its width direction, and the top of the base plate 1 has a plurality of second sliding grooves 12 spaced apart along its length direction, perpendicular to and communicating with the first sliding grooves 11; the first sliding grooves 11 and the second sliding grooves 12 have the same size, the first sliding grooves 11 and the second sliding grooves 12 are evenly spaced apart, and the cross-sections of the first sliding grooves 11 and the second sliding grooves 12 are inverted T-shaped structures; the bottom of the connecting seat 21 in the clamping mechanism 2 is rotatably provided with an inverted T-shaped sliding rod 3, and the bottom end of the T-shaped sliding rod 3 is slidably engaged with the first sliding grooves 11 and the second sliding grooves 12; setting the T-shaped sliding rod 3 as an inverted T-shape can prevent slippage when adjusting the position of the clamping mechanism 2.

[0037] The bottom of the connecting seat 21 has an axially oriented mounting groove 211 that matches the T-shaped sliding rod 3. The top wall of the mounting groove 211 is embedded with a distance detection element 212 that communicates with the controller. The distance detection element 212 uses an existing miniature infrared ranging sensor to detect the distance between the T-shaped sliding rod 3 and its detection end, thus feeding the measurement result back to the controller. Rotating the connecting seat 21 causes the T-shaped sliding rod 3 to move upwards along the mounting groove 211. When the detection end of the distance detection element 212 contacts the top of the T-shaped sliding rod 3, the connecting seat 21 is locked to the base plate 1 via the T-shaped sliding rod 3. When the distance detected by the distance detection element 212 is zero, its detection result is fed back to the controller, and at this time, the connecting seat 21 of the clamping mechanism 2 is locked to the base plate 1 via the T-shaped sliding rod 3. When the detected distance is greater than zero, the connecting seat 21 and the base plate 1 are unlocked.

[0038] Specifically, the top outer wall of the T-shaped sliding rod 3 is provided with a spiral guide groove 31, and the inner wall of the mounting groove 211 is provided with a telescopic locking block 213 that slides with the spiral guide groove 31. The bottom walls at both ends of the spiral guide groove 31 are respectively provided with locking holes 32 that engage with the telescopic ends of the telescopic locking block 213. The telescopic locking block 213 includes a locking block and a return spring. The inner wall of the mounting groove 211 is provided with a mounting hole for mounting the locking block, and the return spring is connected between the bottom wall of the mounting hole and the locking block. The locking block slides with the spiral guide groove 31.

[0039] In use, rotating the connecting seat 21 causes the telescopic locking block 213 to move along the spiral guide groove 31, which in turn causes the T-shaped sliding rod 3 to move upward along the mounting groove 211. When the top of the T-shaped sliding rod 3 contacts the detection end of the distance detection element 212, the telescopic locking block 213 moves to the lower end of the spiral guide groove 31. Under the action of the return spring, the telescopic locking block 213 extends into the lower end's locking hole 32 and engages with it. Reverse rotation of the connecting seat 21 causes the telescopic locking block 213 to move out of the locking hole 32. Further reverse rotation of the connecting seat 21 causes the telescopic locking block 213 to move in the opposite direction along the spiral guide groove 31. When the telescopic locking block 213 moves to the upper end of the spiral guide groove 31, it engages with the upper end's locking hole 32 under the action of the return spring, thus unlocking the connecting seat 21 from the base plate 1. At this time, the position of the clamping mechanism 2 can be moved and adjusted, making operation convenient.

[0040] like Figures 5 to 8As shown, the clamping mechanism 2 also includes a vertical plate 22 vertically disposed on one side of the top of the connecting seat 21; a drive component 23 disposed on the top of the connecting seat 21 and communicatively connected to the controller, the drive component 23 being a servo motor; a bidirectional screw 24 disposed on the output end of the drive component 23 and parallel to the vertical plate 22, the bidirectional screw 24 being connected to the output shaft of the drive component 23 via a coupling; and push blocks 25 threadedly connected to both ends of the bidirectional screw 24 and slidingly engaged with the vertical plate 22; specifically, a groove 221 is provided on the vertical plate 22 along its axial direction, and a slider 251 matching the groove 221 is provided on the push block 25, and a ball is provided on the side of the slider 251 facing the bottom wall of the groove 221, the ball being provided to reduce the frictional loss between the slider 251 and the groove 221.

[0041] Furthermore, the bottom of the upper push block 25 is rotatably equipped with an upper clamp 26 that slides in cooperation with the bidirectional screw 24, and the top of the lower push block 25 is rotatably equipped with a lower clamp 27 that slides in cooperation with the bidirectional screw 24. The upper clamp 26 and the lower clamp 27 correspond to each other, and auxiliary clamping components 4 and position detection components 5 that are communicatively connected to the controller are respectively provided on the opposite side of the upper clamp 26 and the lower clamp 27. In this embodiment, the auxiliary clamping components 4 on the upper clamp 26 and the lower clamp 27 are staggered; this arrangement allows the auxiliary clamping components 4 to generate clamping forces at different positions on both sides of the workpiece, resulting in multiple contact points and making the clamping more stable.

[0042] The bidirectional screw 24 is driven to rotate by the drive component 23. The rotation of the bidirectional screw 24 causes the two push blocks 25 to move closer or further apart, which in turn causes the upper clamp 26 and lower clamp 27 to move closer or further apart. When the two clamps move closer together, they can clamp the workpiece. The two clamps and the push blocks 25 rotate in coordination, allowing the position of the upper and lower clamps to be adjusted in real time. When clamping the workpiece, the auxiliary clamping component 4 first contacts the surface of the workpiece. As the two clamps move closer together, the auxiliary clamping component 4 is compressed. When both position detection components 5 are in contact with the workpiece, they feed back the position information to the controller. The controller controls the drive component 23 to pause, and the auxiliary clamping component 4 assists in clamping the workpiece, thereby avoiding damage to the workpiece caused by excessive clamping force.

[0043] like Figure 8As shown, the auxiliary clamping assembly 4 includes an auxiliary clamping block 41, a spring 42, and a fixing rod 43. The upper clamp 26 and the lower clamp 27 have grooves on opposite sides that match the auxiliary clamping block 41, and the depth of the grooves is greater than the thickness of the auxiliary clamping block 41. The fixing rod 43 is disposed on the bottom wall of the groove, and the spring 42 is connected between the bottom wall of the groove and the auxiliary clamping block 41 and is located outside the fixing rod 43. When the spring 42 is in its natural state, both auxiliary clamping blocks 41 extend to the outside of the groove. When the auxiliary clamping block 41 contacts the end of the fixing rod 43, the end face of the auxiliary clamping block 41 is flush with the end face of the corresponding upper clamp 26 / lower clamp 27. When the end of the fixing rod 43 on the bottom wall of the groove of the upper clamp 26 contacts the corresponding auxiliary clamp 41, the end face of the auxiliary clamp 41 is flush with the end face of the corresponding upper clamp 26; when the fixing rod 43 on the bottom wall of the groove of the lower clamp 27 contacts the corresponding auxiliary clamp 41, the end face of the auxiliary clamp 41 is flush with the end face of the corresponding lower clamp 27; the fixing rod 43 is used to limit the position of the auxiliary clamp 41 in the groove.

[0044] Specifically, the upper clamp 26 includes an upper connecting ring 261 rotatably disposed at the bottom of the upper push block 25 and slidingly engaged with the bidirectional screw 24, and an upper gripper 262 disposed on the outer wall of the upper connecting ring 261. In this embodiment, the bottom of the upper push block 25 is provided with a coaxial annular groove, and the top of the upper connecting ring 261 is provided with an annular shaft that matches the annular groove, thus enabling rotation; the upper connecting ring 261 is locked onto the corresponding push block 25 by screws. The lower clamp 27 includes a lower connecting ring 271 rotatably disposed on the top of the lower push block 25 and slidingly engaged with the bidirectional screw 24, and a lower jaw 272 disposed on the outer wall of the lower connecting ring 271. In this embodiment, the top of the lower push block 25 has a coaxial annular groove, and the bottom of the lower connecting ring 271 has an annular shaft matching the annular groove, thus enabling rotation. The lower jaw 272 corresponds to the upper jaw 262. The lower connecting ring 271 is locked to the corresponding push block 25 by screws. The bottom of the upper jaw 262 and the top of the lower jaw 272 are respectively provided with grooves. The bottom of the upper jaw 262 and the top of the lower jaw 272 are respectively provided with position detection elements 5 that communicate with the controller. The detection end of the position detection element 5 is flush with the clamping surface of the jaw. The position detection element 5 adopts an existing contact displacement sensor, model Panasonic. The HG-C2100 is connected to the controller, and the drive unit 23 is also connected to the controller. With this configuration, when both contact displacement sensors are in contact with the surface of the workpiece, they will feed back the position information to the controller. The controller will then control the start and stop of the drive unit 23 to achieve intelligent control of the clamp.

[0045] To facilitate adjustment of the positions of the upper clamp 26 and lower clamp 27 on the corresponding push blocks 25, the top of the upper clamp 262 and the bottom of the lower clamp 272 are respectively provided with a number of threaded holes (not shown in the figure) at an annular interval. The two push blocks 25 are provided with threaded through holes that mate with the screw threads. The screw passes through the threaded through holes on the push blocks 25 and connects with the threaded holes on the corresponding upper clamp 262 / lower clamp 272.

[0046] When using the floating fixture for irregularly shaped workpieces of this utility model, the corresponding number of clamping mechanisms 2 are matched according to the workpiece to be clamped, and the clamping mechanisms 2 are installed on the base plate 1. The position of the clamping mechanisms 2 is adjusted, and then the clamping mechanisms 2 are locked on the base plate 1. The position of the two clamps on the corresponding push blocks 25 is further adjusted, and then the drive component 23 is started by the controller, which drives the bidirectional screw 24 to rotate and drives the two push blocks 25 to slide along the vertical plate 22, so that the two push blocks 25 move closer or further away from each other, thereby driving the upper clamp 26 and the lower clamp 27 to move closer or further away from each other. When the two clamps move closer to each other, they are used to clamp the workpiece.

[0047] When clamping the workpiece, the upper jaw 262 and the lower jaw 272 are located on the upper and lower sides of the workpiece. The auxiliary clamping block 41 on the auxiliary clamping assembly 4 will first contact the surface of the workpiece. As the two clamps move closer to each other, the spring 42 is compressed. When both position detection elements 5 are in contact with the workpiece, they will feed back the position information to the controller. The controller controls the drive element 23 to stop. The elastic force of the spring 42 acts on the auxiliary clamping block 41 and clamps the workpiece, thereby greatly reducing the damage to the workpiece.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A floating clamp for a profiled workpiece, characterized by include: The controller, the base plate (1), and a number of clamping mechanisms (2) that are slidably disposed on the base plate (1) and spaced apart, wherein the clamping mechanisms (2) are communicatively connected to the controller; The top of the base plate (1) is provided with a plurality of first sliding grooves (11) spaced apart along its width direction, and the top of the base plate (1) is provided with a plurality of second sliding grooves (12) spaced apart along its length direction, which are perpendicular to and connected to the first sliding grooves (11); the bottom of the connecting seat (21) in the clamping mechanism (2) is rotatably provided with an inverted T-shaped sliding rod (3), and the bottom end of the T-shaped sliding rod (3) slides in cooperation with the first sliding groove (11) and the second sliding groove (12); The bottom of the connecting seat (21) is provided with an axially oriented mounting groove (211) that matches the T-shaped sliding rod (3). The top wall of the mounting groove (211) is embedded with a distance detection element (212) that communicates with the controller. When the connecting seat (21) is rotated and the T-shaped sliding rod (3) is moved upward along the mounting groove (211), when the detection end of the distance detection element (212) contacts the top end of the T-shaped sliding rod (3), the connecting seat (21) is locked on the base plate (1) by the T-shaped sliding rod (3).

2. The floating clamp for a profiled workpiece according to claim 1, characterized in that, The top outer wall of the T-shaped sliding rod (3) is provided with a spiral guide groove (31), and the inner wall of the mounting groove (211) is provided with a telescopic block (213) that slides with the spiral guide groove (31). The bottom walls at both ends of the spiral guide groove (31) are respectively provided with a locking hole (32) that engages with the telescopic end of the telescopic block (213).

3. The floating clamp for a profiled workpiece according to claim 2, characterized in that The telescopic block (213) includes a block and a return spring. The inner wall of the mounting groove (211) is provided with a mounting hole for mounting the block, and the return spring is connected between the bottom wall of the mounting hole and the block. The block slides in cooperation with the spiral guide groove (31).

4. The floating fixture for a profiled workpiece according to claim 1, characterized in that, The first groove (11) and the second groove (12) are evenly spaced apart, and the cross-sections of the first groove (11) and the second groove (12) are inverted T-shaped structures.

5. The floating clamp for a profiled workpiece according to any one of claims 1 to 4, characterized in that The clamping mechanism (2) further includes a vertical plate (22) vertically disposed on one side of the top of the connecting seat (21), a drive member (23) disposed on the top of the connecting seat (21) and communicatively connected to the controller, a bidirectional screw (24) disposed on the output end of the drive member (23) and parallel to the vertical plate (22), and push blocks (25) threadedly connected to both ends of the bidirectional screw (24) and slidingly engaged with the vertical plate (22); The bottom of the upper push block (25) is rotatably provided with an upper clamp (26) that slides with the bidirectional screw (24), and the top of the lower push block (25) is rotatably provided with a lower clamp (27) that slides with the bidirectional screw (24). The upper clamp (26) and the lower clamp (27) correspond to each other, and the upper clamp (26) and the lower clamp (27) are respectively provided with an auxiliary clamping component (4) and a position detection component (5) that is communicatively connected to the controller on opposite sides.

6. The floating fixture for a profiled workpiece according to claim 5, wherein The auxiliary clamping components (4) on the upper clamp (26) and the auxiliary clamping components (4) on the lower clamp (27) are staggered.

7. The floating fixture for a profiled workpiece according to claim 5, wherein The auxiliary clamping assembly (4) includes an auxiliary clamping block (41), a spring (42), and a fixing rod (43). The upper clamp (26) and the lower clamp (27) have grooves on opposite sides that match the auxiliary clamping block (41), and the depth of the groove is greater than the thickness of the auxiliary clamping block (41). The fixing rod (43) is disposed on the bottom wall of the groove, and the spring (42) is connected between the bottom wall of the groove and the auxiliary clamping block (41) and is located on the outside of the fixing rod (43). When the auxiliary clamp (41) contacts the end of the fixing rod (43), the end face of the auxiliary clamp (41) is flush with the end face of the corresponding upper clamp (26) / lower clamp (27).

8. The floating fixture for a profiled workpiece according to claim 7, characterized in that The upper clamp (26) includes an upper connecting ring (261) rotatably disposed at the bottom of the upper push block (25) and slidingly engaged with the bidirectional screw (24), and an upper jaw (262) disposed on the outer wall of the upper connecting ring (261). The upper connecting ring (261) is locked to the corresponding push block (25) by screws. The lower clamp (27) includes a lower connecting ring (271) rotatably disposed on the top of the lower push block (25) and slidingly engaged with the bidirectional screw (24), and a lower jaw (272) disposed on the outer wall of the lower connecting ring (271). The lower jaw (272) corresponds to the upper jaw (262). The lower connecting ring (271) is locked to the corresponding push block (25) by screws. The bottom of the upper jaw (262) and the top of the lower jaw (272) are respectively provided with the groove. The bottom of the upper jaw (262) and the top of the lower jaw (272) are respectively provided with a position detection element (5) that is communicatively connected to the controller.

9. The floating fixture for a profiled workpiece according to claim 8, wherein The top of the upper jaw (262) and the bottom of the lower jaw (272) are respectively provided with a number of threaded holes that are connected to screws in a ring at intervals.

10. The floating fixture for a profiled workpiece according to claim 5, wherein The vertical plate (22) has a groove (221) along its axial direction. The push block (25) is provided with a slider (251) that matches the groove (221), and a ball bearing is provided on the side of the slider (251) facing the bottom wall of the groove (221).

Images