Clamping device for plate machining

Abstract

The invention belongs to the technical field of plate machining, and particularly relates to a plate machining clamping device which comprises a machining table, a plurality of evenly-distributed supporting legs are fixed to the lower surface of the machining table, supporting arms are symmetrically fixed to the upper surface of the machining table, and a lifting guide rail mechanism is fixedly installed between the two supporting arms. The purpose of quick mounting is achieved by arranging a quick dismounting assembly, an operator can conveniently control the position of a limiting block by arranging a shifting piece, so that quick dismounting of the clamping mechanisms is completed, excessive clamping force is absorbed and buffered by arranging a buffering assembly and utilizing elasticity of a second spring, and the situation that when the two clamping mechanisms get close to each other, the clamping mechanisms are damaged is avoided. According to the plate clamping device, the plate body cannot be released due to overlarge clamping force generated on the plate body, so that irreversible damage to the main body of the plate body is generated, and the plate is clamped and fixed through the two groups of clamping assemblies.

Description

Technical Field

[0001] The present invention belongs to the technical field of plate processing, and particularly relates to a clamping device for plate processing. Background Art

[0002] In modern industrial production, plate processing is an extremely important link, and is widely used in many fields such as machinery manufacturing, electronic appliances, aerospace, and architectural decoration.

[0003] During the plate processing, in order to ensure processing accuracy and operation safety, a clamping device is needed to stably clamp the plate. The performance of the clamping device directly affects the quality, efficiency, and safety of plate processing. Currently, there are many types of common plate clamping devices on the market, such as mechanical clamps, hydraulic clamps, pneumatic clamps, etc. Mechanical clamps have a relatively simple structure and low cost, but the clamping force is limited. For some plates with large size, heavy weight or irregular shape, it is difficult to achieve stable clamping, and the adjustment is inconvenient, requiring frequent manual adjustment, resulting in low processing efficiency. Although hydraulic clamps can provide a large clamping force, their structure is complex, the cost is high, a hydraulic system needs to be equipped, there is a risk of oil leakage, and the maintenance cost is also high. At the same time, the response speed of the hydraulic system is slow, which affects the processing efficiency to a certain extent. Pneumatic clamps have the advantages of fast response speed, clean and pollution-free, etc., but the clamping force is greatly affected by air pressure, and the stability is insufficient. During the processing, the plate is prone to looseness, resulting in the influence of processing accuracy.

[0004] In addition, when many existing clamping devices clamp the plate, most of them can only fix plates with specific sizes or shapes, and the versatility is poor. When plates of different specifications need to be processed, the entire clamping device often needs to be replaced or complex adjustments are required, which not only increases the production cost, but also wastes a lot of time, and it is difficult to meet the processing requirements of multi-variety and small-batch in modern industrial production. Moreover, during the plate processing, especially during processing operations such as drilling and milling, large vibrations and impact forces will be generated. If the stability and rigidity of the clamping device are insufficient, the plate is prone to displacement or deformation, seriously affecting the processing accuracy, and even may cause safety accidents. In view of this, we propose a clamping device for plate processing. Summary of the Invention

[0005] The purpose of the present invention is to provide a clamping device for plate processing to solve the problems raised in the above background art.

[0006] In view of this, the present invention provides a clamping device for plate processing, including: Processing table, a plurality of uniformly distributed support legs are fixed on the lower surface of the processing table, support arms are symmetrically fixed on the upper surface of the processing table, a lifting guide rail mechanism is fixedly installed between the two support arms, and two groups of clamping mechanisms are symmetrically arranged directly below the lifting guide rail mechanism. The clamping mechanism is used to clamp the plate during processing. The clamping mechanism consists of a quick-release component and a clamping component. The clamping component is used to clamp the surface of the plate, and the quick-release component is used for quickly disassembling and replacing the clamping component part.

[0007] In this technical solution, the lifting guide rail mechanism includes: Fixed frame, the fixed frame is fixedly installed between the two support arms. A guide rail groove is opened on the lower surface of the fixed frame. An electric guide rail is fixedly installed in the guide rail groove. Sliding sleeves are symmetrically slidably installed on the electric guide rail, and an electric push rod is fixedly installed on the lower surface of the sliding sleeve.

[0008] In this technical solution, the clamping mechanism includes: Fixed block, the fixed block is fixedly installed at the bottom end of the telescopic rod of the electric push rod. An installation block is rotatably installed on the inner side of the fixed block. A buffer box is arranged on the inner side of the installation block. A C-shaped block with a C-shaped cross-section is arranged on the inner side of the buffer box. A driving component is arranged on the outer side of one of the fixed blocks, and a buffer component is arranged in the buffer box.

[0009] In this technical solution, the driving component includes: Motor, the motor is fixedly installed on the side wall of one of the fixed blocks. A rotating groove is opened in the inner cavity of the fixed block. A rotating block is rotatably installed in the rotating groove. The output shaft of the motor is coaxially connected to the rotating block, and the other end of the rotating block is fixed to the side wall of the installation block.

[0010] In this technical solution, the quick-release component includes: Jack, the jack is opened in the inner cavity of the installation block. Sliding grooves are symmetrically opened on the inner wall of the jack. Limit blocks are slidably installed in the sliding grooves. A first spring is fixedly installed between the limit blocks and the inner walls of the sliding grooves. A dial is fixed on the lower surface of the limit block, and the other end of the dial penetrates through the bottom of the sliding groove and extends to the outside. An opening for accommodating two dials to slide is opened on the lower surface of the installation block.

[0011] In this technical solution, the quick-release component further includes: An insert block is fixedly mounted on the side wall of the buffer box close to the mounting block. A limiting hole matching the limiting block is formed on the insert block. Two limiting blocks are plugged into the limiting holes. Positioning posts are symmetrically fixed to the inner wall of the insert hole. Positioning holes matching the positioning posts are formed on the insert block. The positioning posts are plugged into the corresponding positioning holes.

[0012] In this technical solution, the buffer component includes: A buffer box having an internal hollow structure, a sliding plate being slidably installed in the inner cavity of the buffer box, a connecting rod being fixed on the side of the sliding plate facing the 匚-shaped block, the other end of the connecting rod passing through the inner wall of the buffer box and being fixed to the 匚-shaped block, and a spring 2 being arranged on the side of the sliding plate away from the connecting rod.

[0013] In this technical solution, the clamping assembly includes: An upper clamping plate is slidably mounted in the inner cavity of the U-shaped block, an electric cylinder is fixedly mounted on the upper surface of the U-shaped block, and a telescopic rod of the electric cylinder passes through the U-shaped block and is fixed to the upper clamping plate.

[0014] In the present technical solution, a lower clamp is fixedly installed on the inner bottom surface of the 匚-shaped block, a rectangular groove is opened on the lower surface of the lower clamp, four pressure sensors are fixedly installed in the rectangular groove, and a control panel is fixedly installed on the outer wall of the buffer box, and the control panel is electrically connected to the pressure sensor.

[0015] In the technical solution, a soft pad is fixed to the lower surface of the upper clamping plate and the upper surface of the lower clamping plate, and a plurality of evenly distributed anti-slip protrusions are arranged on the side of the soft pad facing the plate.

[0016] In the technical solution, the second spring comprises a low-rigidity spiral section and a high-rigidity spiral section, and the low-rigidity spiral section and the high-rigidity spiral section are connected by an elastic coupling.

[0017] The beneficial effects of the present invention are: 1. The clamping device for plate processing is provided with a quick-release assembly and utilizes the elasticity of spring 1 so that after the insert block is fully inserted into the insert hole, spring 1 can push the limit block to reset and insert the limit block into the limit hole, thereby constraining the insert block and achieving the purpose of rapid installation. By providing a paddle, the operator can easily control the position of the limit block, thereby completing the rapid disassembly of the clamping mechanism.

[0018] 2. The clamping device used in the plate processing, by setting a buffer component, utilizes the elasticity of spring 2 to absorb and buffer excessive clamping force, so as to avoid the two clamping mechanisms from generating excessive clamping force on the plate body and being unable to release it when approaching each other, thereby causing irreversible damage to the main body of the plate body.

[0019] 3. The second spring consists of a low-stiffness helical section and a high-stiffness helical section, and the low-stiffness helical section and the high-stiffness helical section are connected by an elastic coupling. When clamping a plate, at the initial contact, the low-stiffness helical section is compressed first to absorb the impact energy. When the compression amount reaches the critical value (after the plate is fully contacted), the high-stiffness helical section intervenes. At this time, the damping coefficient increases, which can cope with different processing conditions (drilling, milling, etc.), avoid the limitations of passive buffering, and suppress the vibration during processing. Secondly, for brittle plates, it can avoid the edge cracking caused by rigid clamping, make the initial low-stiffness buffering, and make the contact force evenly distributed to protect the safety of the plate during clamping; when clamping plates with different thicknesses, such as for thin plates, the low-stiffness helical section acts first. At this time, when the clamping mechanism contacts the plate, the contact pressure is evenly distributed on the entire surface of the plate rather than concentrated on several points. At this time, the pressure borne by the plate surface is significantly reduced, avoiding plastic deformation or indentation. When the spring compression amount reaches the critical value, the high-stiffness helical section participates in the load-bearing of the plate. Through the feedback of the pressure sensor, the control panel dynamically adjusts the upper limit of the clamping force, which not only prevents over-clamping but also resists the processing vibration.

[0020] 4. Through the action of the non-linear stiffness spring, in the leading stage participated by the low-stiffness helical section, when clamping during the low-speed processing of the plate, it can avoid the cutting vibration being transmitted to the plate to ensure the surface finish. During the clamping at high speed, the high-stiffness helical section intervenes quickly, which not only suppresses the high-frequency vibration but also prevents the tool from deflecting. It can maintain the clamping stability at different rotational speeds of the same device without manual adjustment. Moreover, the impact energy absorbed during the compression of the low-stiffness helical section can be converted into the pre-tightening potential energy of the high-stiffness helical section through the elastic coupling, thereby reducing the heat generation during the subsequent clamping and avoiding the loss of the buffering clamping effect. Especially when the low-stiffness helical section participates, it allows the clamping mechanism to deflect slightly and adaptively at the initial contact, so that the C-shaped block fits the irregular edge of the plate, and then the high-stiffness helical section locks the position to perform self-centering clamping adjustment on the plate. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the lifting guide rail mechanism and two groups of clamping mechanisms cooperating with each other in the present invention; Figure 3 It is an exploded schematic diagram of the clamping mechanism in the present invention; Figure 4 It is a schematic diagram of the structure of the quick-release component in the present invention; Figure 5 It is a schematic diagram of the structure of the buffer component in the present invention; Figure 6 It is a schematic diagram of the structure of the clamping component in the present invention.

[0022] The markings in the figure are as follows: 1. Processing table; 2. Support leg; 3. Support arm; 4. Fixing frame; 5. Electric guide rail; 6. Sliding sleeve; 7. Electric push rod; 8. Fixing block; 9. Mounting block; 10. Buffer box; 11. C-shaped block; 12. Motor; 13. Rotating groove; 14. Rotating block; 15. Jack; 16. Chute; 17. Limit block; 18. First spring; 19. Paddle; 20. Insert block; 21. Limit hole; 22. Positioning column; 23. Positioning hole; 24. Sliding plate; 25. Connecting rod; 26. Second spring; 27. Upper clamping plate; 28. Electric cylinder; 29. Lower clamping plate; 30. Rectangular groove; 31. Pressure sensor; 32. Control panel; 33. Soft pad; 34. Anti-slip protrusion; 260. Low stiffness spiral section; 261. High stiffness spiral section; 262. Elastic coupling. Specific embodiments

[0023] The following is a further detailed description of the present application in conjunction with the attached Figures 1-6 drawings.

[0024] In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0025] Embodiment 1: This embodiment provides a clamping device for plate processing, including: A processing table 1, with a plurality of uniformly distributed support legs 2 fixed on the lower surface of the processing table 1, and support arms 3 symmetrically fixed on the upper surface of the processing table 1. An elevating guide rail mechanism is fixedly installed between the two support arms 3. Two groups of clamping mechanisms are symmetrically arranged directly below the elevating guide rail mechanism. The clamping mechanism is used to clamp the plate during processing. The clamping mechanism is composed of a quick-release component and a clamping component. The clamping component is used to clamp the surface of the plate, and the quick-release component is used for quick disassembly and replacement of the clamping component part.

[0026] Embodiment 2: This embodiment provides a clamping device for plate processing. In addition to including the technical solutions of the above embodiment, it also has the following technical features. The elevating guide rail mechanism includes: A fixing frame 4, which is fixedly installed between the two support arms 3. A guide rail groove is opened on the lower surface of the fixing frame 4, and an electric guide rail 5 is fixedly installed in the guide rail groove. Sliding sleeves 6 are symmetrically slidably installed on the electric guide rail 5, and an electric push rod 7 is fixedly installed on the lower surface of the sliding sleeve 6.

[0027] When the plate is placed between the two sets of clamping mechanisms, the lifting guide rail mechanism is started. First, the electric push rod 7 works, and the telescopic rod of the electric push rod 7 extends downward by a fixed value, so that the clamping mechanism and the plate are at the same height. Then, the electric guide rail 5 is started, and the electric guide rail 5 works. The two sliding sleeves 6 displace inward simultaneously, and at the same time drive the two electric push rods 7 and the two sets of clamping mechanisms to displace inward.

[0028] By setting the lifting guide rail mechanism, it is convenient to adjust the height of the clamping mechanism and change the pre-positioning of the two sets of clamping mechanisms in the horizontal direction for the plate, so as to facilitate the clamping mechanism to clamp the plate.

[0029] Embodiment 3: This embodiment provides a clamping device during plate processing. In addition to including the technical solutions of the above embodiments, it also has the following technical features. The clamping mechanism includes: A fixed block 8, the fixed block 8 is fixedly installed at the bottom end of the telescopic rod of the electric push rod 7. An installation block 9 is rotatably installed on the inner side of the fixed block 8. A buffer box 10 is arranged on the inner side of the installation block 9. A C-shaped cross-section C-shaped block 11 is arranged on the inner side of the buffer box 10. A driving component is arranged on the outer side of one of the fixed blocks 8, and a buffer component is arranged in the buffer box 10.

[0030] Among them, the driving component is used to drive the clamping mechanism on this side to rotate, and then drive the clamped plate to rotate synchronously, so that the plate can be adjusted to a suitable angle according to the processing requirements of the operator. The buffer component is used to reduce the rigid extrusion of the device on the plate when the two sets of clamping components pre-position the plate, and avoid deformation and breakage of the plate.

[0031] Embodiment 4: This embodiment provides a clamping device during plate processing. In addition to including the technical solutions of the above embodiments, it also has the following technical features. The driving component includes: A motor 12, the motor 12 is fixedly installed on the side wall of one of the fixed blocks 8. A rotating groove 13 is opened in the inner cavity of the fixed block 8. A rotating block 14 is rotatably installed in the rotating groove 13. The output shaft of the motor 12 is coaxially connected to the rotating block 14, and the other end of the rotating block 14 is fixed to the side wall of the installation block 9.

[0032] Among them, when it is necessary to adjust the processing inclination angle of the plate, the motor 12 is started. The output shaft of the motor 12 rotates and drives the rotating block 14 to rotate. The rotating block 14 then drives the installation block 9, the buffer box 10, and the C-shaped block 11 to rotate synchronously. At this time, the plate clamped between the two C-shaped blocks 11 can follow the rotation to realize the change of the processing angle.

[0033] By setting the lower clamping plate 29 and using the lower clamping plate 29 for driving, the manpower consumption when changing the processing angle of the plate is greatly saved.

[0034] Example 5: This example provides a clamping device during the processing of a plate member. In addition to including the technical solutions of the above example, it also has the following technical features. The quick-release component includes: Insertion hole 15 is opened in the inner cavity of the mounting block 9. Symmetrically arranged sliding grooves 16 are opened on the inner wall of the insertion hole 15. A limiting block 17 is slidably installed in the sliding groove 16. A first spring 18 is fixedly installed between the inner wall of the limiting block 17 and the sliding groove 16. A dial 19 is fixed to the lower surface of the limiting block 17, and the other end of the dial 19 penetrates through the bottom of the sliding groove 16 and extends to the outside. An opening is opened on the lower surface of the mounting block 9 to accommodate the sliding of the two dials 19. The quick-release component further includes: Insert block 20 is fixedly installed on the side wall of the buffer box 10 close to the mounting block 9. A limiting hole 21 adapted to the limiting block 17 is opened on the insert block 20. The two limiting blocks 17 are inserted and matched with the limiting hole 21. Symmetrically arranged positioning columns 22 are fixed on the inner wall of the insertion hole 15. A positioning hole 23 adapted to the positioning column 22 is opened on the insert block 20. The positioning column 22 is inserted and matched with the corresponding positioning hole 23.

[0035] Among them, when it is necessary to replace the clamping component, the operator uses his hand to dial the two dials 19 outward. The dial 19 drives the limiting block 17 to displace outward, so that the limiting block 17 gradually retracts from the limiting hole 21. At this time, the limiting block 17 no longer restricts the insert block 20 through the limit of the limiting hole 21. Then the operator pulls the buffer box 10 to the side away from the mounting block 9, and the clamping component can be removed and replaced with a suitable clamping component. The cross-section of the limiting block 17 is in the shape of a right trapezoid, and the slope surface of the limiting block 17 is arranged towards the insert block 20. The two edges at one end of the insert block 20 facing the mounting block 9 are provided with inclined surfaces adapted to the slope surface of the limiting block 17. Thus, when the insert block 20 is inserted into the insertion hole 15, it can cooperate with the limiting block 17 to squeeze the limiting block 17 into the sliding groove 16, and after the insert block 20 is completely inserted, due to the elasticity of the first spring 18, the limiting block 17 is reset, realizing the constraint and limit between the limiting block 17 and the insert block 20.

[0036] By setting the quick-release component, the clamping component of this device can be quickly disassembled and installed, solving the problems of the traditional device that the disassembly and installation methods are complex, the overall time consumption is long, and the efficiency is low when replacing the clamping head.

[0037] Example 6: This example provides a clamping device during the processing of a plate member. In addition to including the technical solutions of the above example, it also has the following technical features. The buffer component includes: Buffer box 10, the buffer box 10 has a hollow internal structure. A sliding plate 24 is slidably installed in the inner cavity of the buffer box 10. A connecting rod 25 is fixed to one side of the sliding plate 24 facing the C-shaped block 11. The other end of the connecting rod 25 penetrates the inner wall of the buffer box 10 and is fixed to the C-shaped block 11. A second spring 26 is provided on the side of the sliding plate 24 away from the connecting rod 25.

[0038] Among them, when the clamping assembly contacts the plate member, the C-shaped block 11 will transmit the extrusion force brought by the plate member to the sliding plate 24 through the connecting rod 25. At this time, the sliding plate 24 will slide toward the mounting block 9 inside the buffer box 10, and at the same time, the second spring 26 will be compressed. During the compression process of the second spring 26, through its own elasticity, the rigid touch between the C-shaped block 11 and the plate member during contact is reduced, so as to avoid adverse phenomena such as bending and damage of the plate member when being clamped by the two C-shaped blocks 11.

[0039] By setting the buffer assembly, the elasticity of the second spring 26 is used to absorb and buffer excessive clamping force, so as to prevent the two clamping mechanisms from generating excessive clamping force on the plate member when approaching each other and being unable to release, thereby causing irreversible damage to the main body of the plate member.

[0040] The second spring 26 is composed of a low-stiffness helical section 260 and a high-stiffness helical section 261, and the low-stiffness helical section 260 and the high-stiffness helical section 261 are connected by an elastic coupling 262. When clamping the plate member, at the initial contact, the low-stiffness helical section 260 is preferentially compressed to absorb the impact energy. When the compression amount reaches the critical value (after the plate member is fully contacted), the high-stiffness helical section 261 intervenes. At this time, the damping coefficient increases, which can cope with different processing conditions (drilling, milling, etc.), avoid the limitations of passive buffering, and suppress vibration during processing. Secondly, for brittle plate members, it can avoid edge cracking caused by rigid clamping, so that the initial low-stiffness buffering makes the contact force evenly distributed to protect the safety of the plate member during clamping; when clamping plate members with different thicknesses, such as for thin plates, the low-stiffness helical section 260 acts preferentially. At this time, when the clamping mechanism contacts the plate member, the contact pressure is evenly distributed on the entire surface of the plate member rather than concentrated on a few points. At this time, the pressure borne by the surface of the plate member is significantly reduced, avoiding plastic deformation or indentation. When the compression amount of the second spring 26 reaches the critical value, the high-stiffness helical section 261 participates in the load-bearing of the plate member. Through the feedback of the pressure sensor 31, the control panel dynamically adjusts the upper limit of the clamping force, not only preventing over-clamping, but also resisting processing vibration.

[0041] Embodiment 7: This embodiment provides a clamping device during plate member processing. In addition to including the technical solutions of the above embodiments, it also has the following technical features. The clamping assembly includes: The upper clamping plate 27 is slidably installed in the inner cavity of the C-shaped block 11. The upper surface of the C-shaped block 11 is fixedly installed with an electric cylinder 28, and the telescopic rod of the electric cylinder 28 penetrates through the C-shaped block 11 and is fixed to the upper clamping plate 27.

[0042] Among them, when the two groups of C-shaped blocks 11 complete the pre-clamping and positioning of the plate member, the electric cylinder 28 is started. The telescopic rod of the electric cylinder 28 displaces downward and pushes the upper clamping plate 27 to displace downward. The upper clamping plate 27 and the lower clamping plate 29 are used to clamp the plate member.

[0043] By setting the upper clamping plate 27, the lower clamping plate 29 and the electric cylinder 28, and driving by the electric cylinder 28, the complete clamping and fixing of the plate member are completed.

[0044] Through the action of the non-linear stiffness spring, in the leading stage participated by the low-stiffness spiral section 260, when clamping during low-speed machining of the plate member, the cutting vibration can be avoided from being transmitted to the plate member to ensure the surface finish. During high-speed machining clamping, the high-stiffness spiral section 261 quickly intervenes, not only suppressing high-frequency vibration but also preventing tool deflection. The clamping stability can be maintained at different rotational speeds of the same device without manual adjustment. Moreover, the impact energy absorbed when the low-stiffness spiral section 260 is compressed can be converted into the pre-tightening potential energy of the high-stiffness spiral section 261 through the elastic coupling 262, thereby reducing the heat generation during the subsequent clamping and avoiding the loss of the buffering clamping effect. Especially when the low-stiffness spiral section 260 participates, it allows the clamping mechanism to deflect slightly and adaptively at the initial contact, so that the C-shaped block 11 fits the irregular edge of the plate member, and then the high-stiffness spiral section 261 locks the position to perform self-centering clamping adjustment on the plate member.

[0045] Embodiment 8: This embodiment provides a clamping device during plate member processing. In addition to including the technical solutions of the above embodiments, it also has the following technical features. The inner bottom surface of the C-shaped block 11 is fixedly installed with a lower clamping plate 29. A rectangular groove 30 is opened on the lower surface of the lower clamping plate 29. Four pressure sensors 31 are fixedly installed in the rectangular groove 30. A control panel 32 is fixedly installed on the outer wall of the buffer box 10. The control panel 32 is electrically connected to the pressure sensors 31.

[0046] Among them, when the upper clamping plate 27 displaces downward and clamps the plate member, the plate member will transmit the pressure brought by the upper clamping plate 27 to the lower clamping plate 29. At this time, multiple pressure sensors 31 located below the lower clamping plate 29 receive the pressure from above, and transmit the obtained detection data to the control panel 32 for display. The operator observes the control panel 32 to ensure that the plate member is in a suitable and stable clamping range. It should be noted that the four pressure sensors 31 in this application are wired to the control panel 32 by a four-bridge wiring method, which is the prior art and will not be elaborated in this application.

[0047] By setting up a pressure sensor 31 and a control panel 32, the clamping force applied to the plate is monitored in real time by the pressure sensor 31, and the data obtained after monitoring is transmitted to the control panel 32 for display, so as to avoid damage to the plate caused by excessive extrusion force between the two clamping mechanisms.

[0048] Embodiment 9: This embodiment provides a clamping device for plate processing. In addition to including the technical solutions of the above embodiments, it also has the following technical features. Soft pads 33 are fixed on the lower surface of the upper clamping plate 27 and the upper surface of the lower clamping plate 29. A plurality of anti-slip protrusions 34 are evenly distributed on the side of the soft pad 33 facing the plate.

[0049] Among them, the soft pad 33 is soft in texture and can play a protective role on the surface of the plate during the process of clamping the plate by the upper clamping plate 27 and the lower clamping plate 29.

[0050] Working principle: When the plate is placed between the two sets of clamping mechanisms, the lifting guide rail mechanism is started. First, the electric push rod 7 works, and the telescopic rod of the electric push rod 7 extends downward by a fixed value, so that the clamping mechanism and the plate are at the same height. Then, the electric guide rail 5 is started, and the electric guide rail 5 works. The two sliding sleeves 6 move inward simultaneously, and at the same time drive the two electric push rods 7 and the two sets of clamping mechanisms to move inward; When the two U-shaped blocks 11 abut against the two side edges of the plate, the clamping assembly is started. At this time, the electric cylinder 28 starts to work, and the telescopic rod of the electric cylinder 28 moves downward and pushes the upper clamping plate 27 downward to clamp the plate by using the upper clamping plate 27 and the lower clamping plate 29.

[0051] The embodiments of the present application are described above in conjunction with the accompanying drawings. Without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are only illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection scope of the present application.

Claims

1. A clamping device for plate processing, characterized in that: Including: A processing table (1), on the lower surface of the processing table (1), a plurality of uniformly distributed support legs (2) are fixedly installed. On the upper surface of the processing table (1), support arms (3) are symmetrically fixedly installed. Between the two support arms (3), a lifting guide rail mechanism is fixedly installed. Directly below the lifting guide rail mechanism, two groups of clamping mechanisms are symmetrically arranged. The clamping mechanism is used to clamp the plate during processing. The clamping mechanism consists of a quick-release component and a clamping component. The clamping component is used to clamp the surface of the plate, and the quick-release component is used for quick disassembly and replacement of the clamping component. The clamping mechanism includes a fixed block (8), the fixed block (8) is fixedly installed at the bottom end of the telescopic rod of the electric push rod (7). On the inner side of the fixed block (8), a mounting block (9) is rotatably installed. On the inner side of the mounting block (9), a buffer box (10) is arranged. Inside the buffer box (10), a buffer component is arranged. The buffer component includes: a buffer box (10), the buffer box (10) has a hollow internal structure. Inside the buffer box (10), a sliding plate (24) is slidably installed. On the side of the sliding plate (24) facing the C-shaped block (11), a connecting rod (25) is fixedly installed. The other end of the connecting rod (25) penetrates the inner wall of the buffer box (10) and is fixed to the C-shaped block (11). On the side of the sliding plate (24) away from the connecting rod (25), a second spring (26) is arranged. The second spring (26) is a spring with a non-linear stiffness structure.

2. A clamping device for plate processing according to claim 1, characterized in that: The lifting guide rail mechanism includes: A fixed frame (4), the fixed frame (4) is fixedly installed between the two support arms (3). On the lower surface of the fixed frame (4), a guide rail groove is opened. Inside the guide rail groove, an electric guide rail (5) is fixedly installed. On the electric guide rail (5), sliding sleeves (6) are symmetrically slidably installed. On the lower surface of the sliding sleeve (6), an electric push rod (7) is fixedly installed.

3. A clamping device for plate processing according to claim 2, characterized in that: On the inner side of the buffer box (10), a C-shaped block (11) with a C-shaped cross-section is arranged. On the outer side of one of the fixed blocks (8), a driving component is arranged.

4. A clamping device for plate processing according to claim 3, characterized in that: The driving component includes: A motor (12), the motor (12) is fixedly installed on the side wall of one of the fixed blocks (8). Inside the fixed block (8), a rotating groove (13) is opened. Inside the rotating groove (13), a rotating block (14) is rotatably installed. The output shaft of the motor (12) is coaxially connected to the rotating block (14). The other end of the rotating block (14) is fixed to the side wall of the mounting block (9).

5. A clamping device for plate processing according to claim 4, characterized in that: The quick-release component includes: A jack (15) is provided. The jack (15) is opened in the inner cavity of the mounting block (9). Symmetrically arranged sliding grooves (16) are provided on the inner wall of the jack (15). A limiting block (17) is slidably installed in the sliding groove (16). A first spring (18) is fixedly installed between the limiting block (17) and the inner wall of the sliding groove (16). A dial (19) is fixed to the lower surface of the limiting block (17), and the other end of the dial (19) penetrates through the bottom of the sliding groove (16) and extends to the outside. An opening for accommodating the two dials (19) to slide is provided on the lower surface of the mounting block (9).

6. A clamping device for plate processing according to claim 5, characterized in that: The quick-release assembly further includes: An insertion block (20) is fixedly installed on the side wall of the buffer box (10) close to the mounting block (9). A limiting hole (21) adapted to the limiting block (17) is provided on the insertion block (20). The two limiting blocks (17) are inserted and matched with the limiting hole (21). Symmetrically arranged positioning columns (22) are fixedly installed on the inner wall of the jack (15). A positioning hole (23) adapted to the positioning column (22) is provided on the insertion block (20). The positioning column (22) is inserted and matched with the corresponding positioning hole (23).

7. A clamping device for plate processing according to claim 6, characterized in that: The clamping assembly includes: An upper clamping plate (27) is slidably installed in the inner cavity of the U-shaped block (11). An electric cylinder (28) is fixedly installed on the upper surface of the U-shaped block (11), and the telescopic rod of the electric cylinder (28) penetrates through the U-shaped block (11) and is fixed to the upper clamping plate (27).

8. A clamping device for plate processing according to claim 7, characterized in that: A lower clamping plate (29) is fixedly installed on the inner bottom surface of the U-shaped block (11). A rectangular groove (30) is provided on the lower surface of the lower clamping plate (29). Four pressure sensors (31) are fixedly installed in the rectangular groove (30). A control panel (32) is fixedly installed on the outer wall of the buffer box (10). The control panel (32) is electrically connected to the pressure sensors (31).

9. A clamping device for plate processing according to claim 8, characterized in that: Soft pads (33) are fixed to the lower surface of the upper clamping plate (27) and the upper surface of the lower clamping plate (29). A plurality of anti-slip protrusions (34) are evenly distributed on the side of the soft pad (33) facing the plate member.

10. A clamping device for plate processing according to claim 1, characterized in that: The second spring (26) is composed of a low-stiffness helical section (260) and a high-stiffness helical section (261), and the low-stiffness helical section (260) and the high-stiffness helical section (261) are connected by an elastic coupling (262).

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