Rigidity-adjustable workpiece clamping device

Abstract

The utility model discloses a workpiece clamping device capable of adjusting rigidity, which comprises a concave lifting limiting block and a carrying winch, and relates to the technical field of workpiece clamping. The stability and reliability of the whole lifting process are ensured, the lifting efficiency is improved through the design, and the safety risk possibly caused by unstable lifting is effectively reduced; through cooperation of a lifting threaded limiting rod and a convex lifting adjusting block, precise positioning and fixing of non-standard parts are achieved, meanwhile, the telescopic extrusion fixing mode of an extrusion assembly can be adjusted, the non-standard parts of different shapes and sizes can be adapted, and the flexibility and universality of the system are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece clamping, in particular to a workpiece clamping device with adjustable rigidity. Background Art

[0002] Lifting tools play an indispensable role in the daily production of industrial and mining enterprises. Although traditional lifting equipment, such as hoists, lifting slings, and lifting chains, have different structures, their basic principles all revolve around setting a hook at the bottom of the metal chain. These tools require auxiliary equipment such as ropes to bind the cargo during operation in order to facilitate the stable mounting of the hook. However, this operation method requires cumbersome rope tying before lifting the cargo, making the entire lifting process relatively complicated.

[0003] In some cases, when ropes are not available, people may choose to use three hooks for lifting. This method does save the step of tying ropes, but the lifting method of triangular hooks at the bottom of the cargo has many hidden dangers in terms of stability and safety, which cannot be fully guaranteed. In view of this, in-depth research on the above issues led to the creation of this case. Utility Model Content

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a workpiece clamping device with adjustable stiffness, comprising: a concave lifting limit block and a transport winch, the concave lifting limit block is installed on the transport winch, and an adjustable stiffness adjustment structure is installed on the concave lifting limit block;

[0005] The adjustable stiffness adjustment structure comprises: two pairs of convex lifting adjustment blocks, four pairs of lifting adjustment limit shafts, two pairs of lifting thread limit tubes, two pairs of lifting thread limit rods, a cross-shaped expansion gear box, two pairs of inclined gear transmission groups, a lifting adjustment drive machine and an adjustable extrusion component;

[0006] The concave lifting limit block is provided with two pairs of convex lifting grooves, and the two pairs of convex lifting adjustment blocks are movably inserted in the inner sides of the two pairs of convex lifting grooves, and the four pairs of lifting adjustment limit shafts are respectively inserted in the inner sides of the two pairs of convex lifting grooves, and the four pairs of lifting adjustment limit shafts are respectively movably inserted in the two pairs of convex lifting adjustment blocks, and the two pairs of lifting thread limit rods are inserted in a cross shape on the concave lifting limit block, and the two pairs of lifting thread limit tubes are respectively inserted in the two pairs of convex lifting adjustment blocks, and the two pairs of lifting thread limit tubes are respectively sleeved on the two pairs of lifting thread limit rods, the cross-shaped expansion gear box is installed on the concave lifting limit block, the two pairs of inclined gear transmission groups are respectively installed on the two pairs of lifting thread limit rods, and the two pairs of inclined gear transmission groups are connected to the cross-shaped expansion gear box, the driving end of the lifting adjustment driving machine is connected to the cross-shaped expansion gear box, and the adjustable extrusion assembly is installed on the two pairs of convex lifting adjustment blocks.

[0007] Preferably, the adjustable extrusion assembly comprises: two pairs of telescopic sleeve shaft tubes, four pairs of telescopic limit rings, a plurality of limit adjustment shafts, a plurality of limit adjustment sleeve springs, two pairs of telescopic extrusion inner shaft tubes, two pairs of horizontal telescopic angle rings, two pairs of horizontal telescopic angle adjustment ring magnets, four pairs of horizontal telescopic angle adjustment ring electromagnets, four pairs of convex cylindrical telescopic blocks, two pairs of horizontal limit blocks, four pairs of expansion adjustment sleeve springs and two pairs of expansion extrusion inner shafts;

[0008] The two pairs of telescopic sleeve shaft tubes are respectively installed on the two pairs of convex lifting adjustment blocks, the four pairs of telescopic limit rings are respectively installed on the two pairs of telescopic sleeve shaft tubes, and the plurality of limit adjustment shafts are respectively inserted on the four pairs of telescopic limit rings. The two pairs of telescopic extrusion inner shaft tubes are respectively movably inserted on the two pairs of telescopic sleeve shaft tubes, the two pairs of horizontal telescopic angle rings are respectively installed on the two pairs of telescopic extrusion inner shaft tubes, and the two pairs of horizontal telescopic angle rings are respectively movably sleeved on the plurality of limit adjustment shafts, and the plurality of limit adjustment sleeve springs are respectively sleeved on the plurality of limit adjustment shafts. The two pairs of The horizontal limit blocks are respectively installed on the inner sides of the two pairs of telescopic sleeve shaft tubes, the two pairs of extended extrusion inner shafts are respectively inserted in the two pairs of horizontal limit blocks, the four pairs of convex cylindrical telescopic blocks are respectively movably inserted in the inner sides of the two pairs of telescopic sleeve shaft tubes, the four pairs of extended adjustment sleeve springs are respectively sleeved on the two pairs of extended extrusion inner shafts, and the four pairs of extended adjustment sleeve springs are respectively connected to the four pairs of convex cylindrical telescopic blocks, the four pairs of horizontal telescopic angle adjustment ring electromagnets are respectively installed on the four pairs of telescopic limit rings, and the two pairs of horizontal telescopic angle adjustment ring magnets are respectively installed on the two pairs of horizontal telescopic angle ring blocks.

[0009] Preferably, the two pairs of telescopic sleeve shaft tubes are respectively provided with concave telescopic grooves.

[0010] Preferably, the four pairs of convex cylindrical telescopic blocks are respectively provided with convex telescopic sliding blocks, and a plurality of the convex telescopic sliding blocks are respectively movably inserted into the inner sides of a plurality of concave telescopic grooves.

[0011] Preferably, an infrared scanner is provided on the concave lifting limit block.

[0012] Preferably, the four pairs of convex cylindrical telescopic blocks are respectively provided with extrusion rubber rings.

[0013] Beneficial Effects

[0014] The utility model provides a workpiece clamping device with adjustable stiffness. It has the following beneficial effects: the workpiece clamping device with adjustable stiffness ensures the stability and reliability of the entire lifting process through the stable lifting of the concave lifting limit block and the operation of the cross-shaped expansion gearbox on the driving end of the lifting adjustment drive machine. This design not only improves the lifting efficiency, but also effectively reduces the safety risks that may be caused by unstable lifting; the cooperation between the lifting threaded limit rod and the convex lifting adjustment block realizes the precise positioning and fixation of non-standard parts. At the same time, the telescopic extrusion fixing method of the adjustable extrusion component can adapt to non-standard parts of different shapes and sizes, enhancing the flexibility and versatility of the system; the design of the inclined gear transmission group makes the contact between the gears close, reduces the energy loss in the transmission process, and improves The transmission efficiency is improved. This design not only ensures the effective transmission of power, but also helps to save energy. While the horizontal limit blocks are used to cross-extrude and fix the parts, the reverse force squeezes the horizontal limit blocks to make the convex cylindrical telescopic blocks telescope. This design provides a buffering effect during the fixing process and avoids damage to parts caused by rigid fixation. The entire fixing process is automated through the control of electromagnets without manual intervention, which not only improves work efficiency, but also ensures the accuracy and efficiency of fixation through the rapid response and precise control of the electromagnets. The design is compact in structure and occupies little space, making it suitable for various working environments. At the same time, the materials and manufacturing processes used ensure the durability and long life of the device and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic structural diagram of a workpiece clamping device with adjustable stiffness.

[0016] Figure 2 The utility model is a schematic structural diagram of a workpiece clamping device with adjustable stiffness.

[0017] Figure 3 The utility model is a schematic structural diagram of a workpiece clamping device with adjustable stiffness.

[0018] In the figure: 1. Concave lifting limit block; 2. Convex lifting adjustment block; 3. Lifting adjustment limit shaft; 4. Lifting thread limit tube; 5. Lifting thread limit rod; 6. Cross-type expansion gear box; 7. Inclined gear transmission group; 8. Lifting adjustment drive motor; 9. Telescopic shaft tube; 10. Telescopic limit ring; 11. Limit adjustment shaft; 12. Limit adjustment set spring; 13. Telescopic extrusion inner shaft tube; 14. Horizontal telescopic angle ring; 15. Horizontal telescopic angle adjustment ring magnet; 16. Horizontal telescopic angle adjustment ring electromagnet; 17. Convex cylindrical telescopic block; 18. Horizontal limit block; 19. Extension adjustment set spring; 20. Extension extrusion inner shaft. DETAILED DESCRIPTION

[0019] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0020] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0021] Example

[0022] like Figure 1-3 As shown, the concave lifting limit block 1 is installed on the transport winch, and an adjustable stiffness adjustment structure is installed on the concave lifting limit block 1;

[0023] Specifically, the adjustable stiffness adjustment structure includes: two pairs of convex lifting adjustment blocks 2, four pairs of lifting adjustment limit shafts 3, two pairs of lifting thread limit tubes 4, two pairs of lifting thread limit rods 5, a cross-shaped expansion gear box 6, two pairs of inclined gear transmission groups 7, a lifting adjustment drive machine 8 and an adjustable extrusion component;

[0024] Specifically, the concave lifting limit block 1 is provided with two pairs of convex lifting grooves, the two pairs of convex lifting adjustment blocks 2 are respectively movably inserted into the inner sides of the two pairs of convex lifting grooves, the four pairs of lifting adjustment limit shafts 3 are respectively inserted into the inner sides of the two pairs of convex lifting grooves, and the four pairs of lifting adjustment limit shafts 3 are respectively movably inserted into the two pairs of convex lifting adjustment blocks 2, the two pairs of lifting threaded limit rods 5 are cross-shaped and inserted into the concave lifting limit block 1, and the two pairs of lifting threaded limit tubes 4 are respectively inserted into the two pairs of convex lifting The two pairs of lifting thread limit tubes 4 are respectively mounted on the two pairs of lifting thread limit rods 5, the cross-shaped expansion gear box 6 is mounted on the concave lifting limit block 1, the two pairs of inclined gear transmission groups 7 are respectively mounted on the two pairs of lifting thread limit rods 5, and the two pairs of inclined gear transmission groups 7 are connected to the cross-shaped expansion gear box 6, the driving end of the lifting adjustment drive 8 is connected to the cross-shaped expansion gear box 6, and the adjustable extrusion assembly is mounted on the two pairs of convex lifting adjustment blocks 2;

[0025] It should be noted that, in the above, the operation of the handling winch drives the concave lifting limit block 1 thereon to be lifted stably, the operation of the lifting adjustment driving machine 8 on the concave lifting limit block 1 drives the cross-shaped expansion gear box 6 on the driving end of the lifting adjustment driving machine 8 to be operated, the operation of the cross-shaped expansion gear box 6 drives the two pairs of inclined gear transmission groups 7 thereon to be operated, the two pairs of lifting threaded limit tubes 4 thereon are driven to rotate through the inclined gear transmission group 7, and the lifting threaded limit rods 5 on the inner side thereof are driven by the two pairs of lifting threaded limit tubes 4 to be lifted stably. The two pairs of lifting thread limit rods 5 drive the convex lifting adjustment block 2 on them respectively, so as to achieve the stable lifting of the convex lifting adjustment block 2 along the inner side of the two pairs of convex lifting grooves on the inner side of the concave lifting limit block 1. At the same time, the non-standard parts are relatively telescopically extruded and flexibly extruded and fixed through the adjustable extrusion components on the inner side of the two pairs of convex lifting adjustment blocks 2. The stable lifting of the concave lifting limit block 1 ensures the smooth operation of the entire system; the operation of the cross-shaped expansion gearbox 6 on the driving end of the lifting adjustment drive 8 further enhances the stability and reliability of the lifting process. This design not only improves the lifting efficiency, but also reduces the safety risks that may be caused by unstable lifting. The cross-shaped expansion gearbox 6 drives the two pairs of inclined gear transmission groups 7 to operate, and through the meshing and transmission of the gears, the power is effectively transmitted to the lifting thread limit tube 4. The design of the inclined gear transmission group 7 makes the contact between the gears closer, reduces the energy loss in the transmission process, and improves the transmission efficiency. The rotation of the lifting thread limit tube 4 drives the lifting thread limit rod 5 to lift stably. This thread transmission method has a self-locking function, which can keep the position stable even under the action of external force, thereby ensuring that the convex lifting adjustment block 2 is stably lifted along the convex lifting groove on the inner side of the concave lifting limit block 1. This design not only improves the lifting accuracy, but also enhances the safety of the system. The two pairs of adjustable extrusion components on the inner side of the convex lifting adjustment block 2 perform relative telescopic extrusion and flexible extrusion and fixation on non-standard parts. This flexible extrusion and fixation method can adapt to non-standard parts of different shapes and sizes, and realizes the precise positioning and fixation of non-standard parts. At the same time, by adjusting the telescopic amount of the extrusion component, the adaptive fixation of non-standard parts of different materials and hardness can be achieved, which improves the flexibility and versatility of the system.

[0026] like Figure 1-3 As shown, the adjustable extrusion assembly includes: two pairs of telescopic sleeve shaft tubes 9, four pairs of telescopic limit rings 10, a plurality of limit adjustment shafts 11, a plurality of limit adjustment sleeve springs 12, two pairs of telescopic extrusion inner shaft tubes 13, two pairs of horizontal telescopic angle rings 14, two pairs of horizontal telescopic angle adjustment ring magnets 15, four pairs of horizontal telescopic angle adjustment ring electromagnets 16, four pairs of convex cylindrical telescopic blocks 17, two pairs of horizontal limit blocks 18, four pairs of expansion adjustment sleeve springs 19 and two pairs of expansion extrusion inner shafts 20;

[0027] Specifically, the two pairs of the telescopic sleeve shaft tubes 9 are respectively installed on the two pairs of the convex lifting adjustment blocks 2, the four pairs of the telescopic limit rings 10 are respectively installed on the two pairs of the telescopic sleeve shaft tubes 9, and the plurality of limit adjustment shafts 11 are respectively inserted on the four pairs of the telescopic limit rings 10. The two pairs of the telescopic extrusion inner shaft tubes 13 are respectively movably inserted on the two pairs of the telescopic sleeve shaft tubes 9. The two pairs of the horizontal telescopic angle rings 14 are respectively installed on the two pairs of the telescopic extrusion inner shaft tubes 13, and the two pairs of the horizontal telescopic angle rings 14 are respectively movably sleeved on the plurality of limit adjustment shafts 11, and the plurality of limit adjustment sleeve springs 12 are respectively sleeved on the plurality of limit adjustment shafts 11. The horizontal limit blocks 18 are respectively installed on the inner sides of the two pairs of telescopic sleeve shaft tubes 9, the two pairs of the extended extrusion inner shafts 20 are respectively inserted into the two pairs of horizontal limit blocks 18, the four pairs of convex cylindrical telescopic blocks 17 are respectively movably inserted into the inner sides of the two pairs of telescopic sleeve shaft tubes 9, the four pairs of extended adjustment sleeve springs 19 are respectively sleeved on the two pairs of extended extrusion inner shafts 20, and the four pairs of extended adjustment sleeve springs 19 are respectively connected to the four pairs of convex cylindrical telescopic blocks 17, the four pairs of horizontal telescopic angle adjustment ring electromagnets 16 are respectively installed on the four pairs of telescopic limit rings 10, and the two pairs of horizontal telescopic angle adjustment ring magnets 15 are respectively installed on the two pairs of horizontal telescopic angle rings 14;

[0028] It should be noted that, in the above, the telescopic extrusion inner shaft tube 13 on the inner side of the two pairs of telescopic sleeve shaft tubes 9 is cross-shaped telescopic extrusion fixed, and the horizontal telescopic angle adjustment ring electromagnets 16 on the four pairs of telescopic limit rings 10 on the inner side of the two pairs of telescopic sleeve shaft tubes 9 are energized one by one, and the horizontal telescopic angle adjustment ring magnets 15 are magnetically repelled and horizontally extended one by one by the four pairs of horizontal telescopic angle adjustment ring electromagnets 16, and the horizontal telescopic angle adjustment ring magnets 15 are driven by the two pairs of horizontal telescopic angle adjustment ring magnets 15 respectively, and the telescopic extrusion inner shaft tube 13 is driven by the horizontal telescopic angle ring 14, so that the telescopic extrusion inner shaft tube 13 is moved along the telescopic sleeve shaft tube. 9 is stably extended and retracted horizontally, and the telescopic sleeve shaft tube 9 drives the horizontal limit block 18 inside it to perform cross-shaped extrusion and fixation on the parts. When the horizontal limit block 18 is used to extrude the parts, the reverse force extrude the horizontal limit block 18, and the horizontal limit block 18 drives a pair of convex cylindrical telescopic blocks 17 thereon, so that the pair of convex cylindrical telescopic blocks 17 are extended and retracted along the extended extrusion inner shaft 20. At the same time, the horizontal limit block 18 is extended and flexibly extruded by the extended adjustment sleeve spring 19, so as to achieve flexible and tight extrusion and fixation. The telescopic extrusion inner shaft tubes 13 inside the two pairs of telescopic sleeve shaft tubes 9 are cross-shaped telescopic and extruded and fixed. This design can ensure that the parts can be extended and retracted in multiple directions. The horizontal telescopic angle adjusting ring electromagnet 16 is subjected to uniform and stable pressure, thereby realizing accurate positioning of the parts. At the same time, the magnetic repulsion effect of the horizontal telescopic angle adjusting ring electromagnet 16 enables the telescopic extrusion inner shaft tube 13 to be stably horizontally extended and retracted, further enhancing the stability of the fixation. The coordinated use of the horizontal telescopic angle adjusting ring electromagnet 16 and the horizontal telescopic angle adjusting ring magnet 15 enables the telescopic extrusion inner shaft tube 13 to be horizontally extended and retracted as needed. This design enables the device to adapt to parts of different sizes and shapes, thereby improving the flexibility and adaptability of the device. While the parts are cross-extended and fixed by the horizontal limit block 18, the reverse force will squeeze the horizontal limit block 18. Block 18 drives the convex cylindrical telescopic block 17 to extend and retract. This design makes the fixing process have a certain buffering effect, avoiding the damage of parts caused by rigid fixation. At the same time, the expansion adjustment set spring 19 expands the flexible squeezing of the horizontal limit block 18 to further enhance the tightness and stability of the fixation. The whole fixing process is automated through the control of the electromagnet, without manual intervention, thus improving work efficiency. At the same time, the rapid response and precise control of the electromagnet also ensure the accuracy and efficiency of the fixation. The design structure is compact, occupies little space, and is suitable for various working environments. At the same time, the materials and manufacturing processes used ensure the durability and long life of the device.

[0029] As a preferred solution, further, the two pairs of telescopic sleeve shaft tubes 9 are respectively provided with concave telescopic grooves.

[0030] As a preferred solution, further, the four pairs of convex cylindrical telescopic blocks 17 are respectively provided with convex telescopic sliding blocks, and a plurality of the convex telescopic sliding blocks are respectively movably inserted into the inner sides of a plurality of concave telescopic grooves.

[0031] As a preferred solution, further, an infrared scanner is provided on the concave lifting limit block 1.

[0032] As a preferred solution, further, the four pairs of convex cylindrical telescopic blocks 17 are respectively provided with extruded rubber rings.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A workpiece clamping device with adjustable stiffness, comprising: A concave lifting limit block and a transport winch, wherein the concave lifting limit block is installed on the transport winch, and an adjustable stiffness adjustment structure is installed on the concave lifting limit block; The adjustable stiffness adjustment structure comprises: two pairs of convex lifting adjustment blocks, four pairs of lifting adjustment limit shafts, two pairs of lifting thread limit tubes, two pairs of lifting thread limit rods, a cross-shaped expansion gear box, two pairs of inclined gear transmission groups, a lifting adjustment drive machine and an adjustable extrusion component; The concave lifting limit block is provided with two pairs of convex lifting grooves, and the two pairs of convex lifting adjustment blocks are movably inserted in the inner sides of the two pairs of convex lifting grooves, and the four pairs of lifting adjustment limit shafts are respectively inserted in the inner sides of the two pairs of convex lifting grooves, and the four pairs of lifting adjustment limit shafts are respectively movably inserted in the two pairs of convex lifting adjustment blocks, and the two pairs of lifting thread limit rods are inserted in a cross shape on the concave lifting limit block, and the two pairs of lifting thread limit tubes are respectively inserted in the two pairs of convex lifting adjustment blocks, and the two pairs of lifting thread limit tubes are respectively sleeved on the two pairs of lifting thread limit rods, the cross-shaped expansion gear box is installed on the concave lifting limit block, the two pairs of inclined gear transmission groups are respectively installed on the two pairs of lifting thread limit rods, and the two pairs of inclined gear transmission groups are connected to the cross-shaped expansion gear box, the driving end of the lifting adjustment driving machine is connected to the cross-shaped expansion gear box, and the adjustable extrusion assembly is installed on the two pairs of convex lifting adjustment blocks.

2. A workpiece clamping device with adjustable stiffness according to claim 1, characterized in that: The adjustable extrusion assembly comprises: two pairs of telescopic sleeve shaft tubes, four pairs of telescopic limit rings, a plurality of limit adjustment shafts, a plurality of limit adjustment sleeve springs, two pairs of telescopic extrusion inner shaft tubes, two pairs of horizontal telescopic angle rings, two pairs of horizontal telescopic angle adjustment ring magnets, four pairs of horizontal telescopic angle adjustment ring electromagnets, four pairs of convex cylindrical telescopic blocks, two pairs of horizontal limit blocks, four pairs of expansion adjustment sleeve springs and two pairs of expansion extrusion inner shafts; The two pairs of telescopic sleeve shaft tubes are respectively installed on the two pairs of convex lifting adjustment blocks, the four pairs of telescopic limit rings are respectively installed on the two pairs of telescopic sleeve shaft tubes, and the plurality of limit adjustment shafts are respectively inserted on the four pairs of telescopic limit rings. The two pairs of telescopic extrusion inner shaft tubes are respectively movably inserted on the two pairs of telescopic sleeve shaft tubes, the two pairs of horizontal telescopic angle rings are respectively installed on the two pairs of telescopic extrusion inner shaft tubes, and the two pairs of horizontal telescopic angle rings are respectively movably sleeved on the plurality of limit adjustment shafts, and the plurality of limit adjustment sleeve springs are respectively sleeved on the plurality of limit adjustment shafts. The two pairs of The horizontal limit blocks are respectively installed on the inner sides of the two pairs of telescopic sleeve shaft tubes, the two pairs of extended extrusion inner shafts are respectively inserted in the two pairs of horizontal limit blocks, the four pairs of convex cylindrical telescopic blocks are respectively movably inserted in the inner sides of the two pairs of telescopic sleeve shaft tubes, the four pairs of extended adjustment sleeve springs are respectively sleeved on the two pairs of extended extrusion inner shafts, and the four pairs of extended adjustment sleeve springs are respectively connected to the four pairs of convex cylindrical telescopic blocks, the four pairs of horizontal telescopic angle adjustment ring electromagnets are respectively installed on the four pairs of telescopic limit rings, and the two pairs of horizontal telescopic angle adjustment ring magnets are respectively installed on the two pairs of horizontal telescopic angle ring blocks.

3. A workpiece clamping device with adjustable stiffness according to claim 2, characterized in that: Concave telescopic grooves are respectively provided on the two pairs of telescopic sleeve shaft tubes.

4. A workpiece clamping device with adjustable stiffness according to claim 3, characterized in that: Convex telescopic sliding blocks are respectively arranged on the four pairs of convex cylindrical telescopic blocks, and a plurality of the convex telescopic sliding blocks are respectively movably inserted into the inner sides of a plurality of concave telescopic grooves.

5. A workpiece clamping device with adjustable rigidity according to claim 4, characterized in that: An infrared scanner is arranged on the concave lifting limit block.

6. A workpiece clamping device with adjustable rigidity according to claim 5, characterized in that: The four pairs of convex cylindrical telescopic blocks are respectively provided with extrusion rubber rings.

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