Automatic clamping device for sheet metal part machining

Abstract

The invention discloses an automatic clamping device for sheet metal part machining, and belongs to the technical field of sheet metal clamping equipment. The equipment comprises a rotating mechanism which is provided with a rotating plate; the switching mechanism is mounted on the rotating mechanism, and the switching mechanism is provided with a platform; the air cylinders are mounted on the platform; the placing plate is mounted at the output end of the air cylinder; a bottom plate; at least one group of air chambers; the suction nozzle is communicated with the air chamber, and the opening direction of the suction nozzle faces the bottom of the placing plate; the counter bore is formed in the placing plate; the air hole is formed in the bottom of the counter bore and penetrates through the placing plate; and the negative pressure pump is communicated with the air chamber. According to the automatic clamping device for sheet metal part machining, by arranging the clamping mechanism, the sheet metal part can be clamped in an adsorption mode, clamping and loosening of the sheet metal part are achieved through lifting motion of the clamping mechanism, and therefore automatic work of sheet metal part clamping is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of sheet metal clamping equipment, and in particular to an automatic clamping device for sheet metal processing. Background Art

[0002] Sheet metal is sometimes also called punching. Generally, some thin metal plates are plastically deformed by hand or die stamping to form the desired shape and size, and can be further welded or a small amount of mechanical processing to form more complex parts. For example, chimneys, iron stoves, and car shells commonly used in households are all sheet metal parts. In the production and processing of sheet metal, it is often necessary to punch, fold, grind and weld the sheet metal. During the processing, the sheet metal needs to be clamped and fixed to prevent it from moving during processing; For example, the patent with publication number CN219925282 U specifically discloses a stable clamping device for automobile sheet metal processing. This patent not only realizes the fast and automatic clamping and fixing of automobile sheet metal by the clamping device, speeds up the clamping speed of automobile sheet metal, but also improves the firmness of the clamping device, making it convenient for automobile sheet metal to be processed on the reverse side; In the implementation process of the above patent, mechanical clamping is used to clamp the sheet metal. However, sheet metal processing is generally batch production, so repeated clamping and loosening of large quantities of sheet metal will undoubtedly increase the workload. Especially for small processing volume and small force on the sheet metal during processing, it is often not necessary to clamp completely, as long as basic fixation is performed. At this time, if mechanical clamping is still used, it will undoubtedly increase additional workload. Therefore, it is necessary to provide an automatic clamping device for sheet metal processing to solve the above problems.

[0003] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0004] Based on the above problems existing in the prior art, the problem to be solved by the present application is: to provide an automatic clamping device for sheet metal processing, which achieves the effect of quickly fixing the sheet metal.

[0005] The technical solution adopted by the present application to solve its technical problems is: an automatic clamping device for sheet metal processing, including a rotating mechanism, which is suitable for driving the sheet metal to be in a horizontal state or an inclined state, and the rotating mechanism has a rotating plate; a switching mechanism, which is installed on the rotating mechanism, and the switching mechanism has a platform suitable for movement; at least one group of cylinders, which are installed on the platform; a placement plate, which is installed on the output end of the cylinder; a bottom plate, which is installed on the platform; at least one group of air chambers, which are installed on the bottom plate ; a suction nozzle, which is connected to the air chamber, and the opening direction of the suction nozzle is toward the bottom of the placement plate; a countersunk hole, which is arranged on the placement plate; an air hole, which is arranged at the bottom of the countersunk hole and passes through the placement plate; a negative pressure pump, which is connected to the air chamber; the placement plate is suitable for being in an upper position and a lower position under the drive of the cylinder, and when the placement plate is in the lower position, it is suitable for being connected with the suction nozzle and sucking and clamping the sheet metal, and when the placement plate is in the upper position, it is suitable for being separated from the suction nozzle and releasing the sheet metal.

[0006] Furthermore, a valve body is provided on the pipeline connecting the negative pressure pump and the air chamber, and a valve stem for controlling the on and off of the valve body is provided on the valve body. A touch rod is fixedly installed on the bottom of the placement plate, and the touch rod corresponds to the valve stem.

[0007] Furthermore, a coil spring is arranged between the valve stem and the valve body.

[0008] Furthermore, a limit strip is provided at the upper end of the placement plate.

[0009] Furthermore, the rotating mechanism includes two groups of bases, and rotating shafts are rotatably arranged on the two groups of bases. A support frame is arranged on one side of the base, and a first motor is fixedly installed on the support frame. A coupling is arranged between the output end of the first motor and the rotating shaft, and the rotating plate is installed on the rotating shaft.

[0010] Furthermore, the switching mechanism includes a first mounting seat fixedly mounted at one end of the rotating plate, and a second mounting seat fixedly mounted at the other end of the rotating plate, the second mounting seat and the first mounting seat being arranged along the length direction of the rotating shaft; a second motor is fixedly mounted on the first mounting seat, a lead screw is fixedly mounted on the output end of the second motor, and the lead screw is rotatably mounted on the first mounting seat and the second mounting seat; a nut is provided on the lead screw for transmission, the platform is fixedly mounted on the nut, a guide rod is fixedly mounted between the first mounting seat and the second mounting seat, a guide sleeve is slidably provided on the guide rod, and the guide sleeve is fixedly mounted on the platform.

[0011] Furthermore, the rotating plate is provided with a plurality of groups of chip removal openings.

[0012] Furthermore, a cleaning mechanism is provided on the rotating plate, and the cleaning mechanism includes two groups of frames fixedly installed on the rotating plate, a roller shaft is fixedly installed between the two groups of frames, a roller is rotatably provided on the roller shaft, and the bottom of the roller is in contact with the upper surface of the placement plate in the raised state.

[0013] Furthermore, a roller cover is fixedly mounted on the roller shaft, the roller cover is located at the upper end of the roller, and a collecting box is fixedly mounted on one side of the roller cover; a notch is provided on the roller cover, and a scraper is provided on the collecting box at the position of the notch, the scraper is made of elastic material, and the scraper is suitable for contacting the outer surface of the roller; a material guiding slope is provided on the scraper along a position close to the collecting box, and the height of the material guiding slope gradually decreases along the position close to the collecting box.

[0014] Furthermore, a side shaft is fixedly installed on the side of the roller, the side shaft is sleeved on the roller shaft, and a ratchet is fixedly installed on the outer ring of the side shaft; a fixed shaft is fixedly installed on the roller cover, a pawl is rotatably arranged on the fixed shaft, the pawl cooperates with the ratchet, and a torsion spring is fixedly installed between the fixed shaft and the pawl; the roller is provided with ridges and grooves at intervals along the circumferential direction, and the position of the groove corresponds to the position of the teeth on the ratchet.

[0015] The present application provides an automatic clamping device for sheet metal processing, which has the following beneficial effects: 1. By providing a clamping mechanism, the sheet metal parts can be clamped by adsorption, and the clamping and loosening of the sheet metal parts can be achieved through the lifting and lowering movement of the clamping mechanism, thereby realizing the automated operation of sheet metal clamping.

[0016] 2. By providing a rotating mechanism, the sheet metal parts can be rotated at a certain angle, thereby realizing processing operations at different angles.

[0017] 3. By providing a cleaning mechanism and a switching mechanism, the processing position and the cleaning position of the sheet metal can be conveniently switched, and during the switching process, the waste chips can be conveniently removed through the one-way sweeping setting.

[0018] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 The overall schematic diagram of an automatic clamping device for sheet metal processing in this application Figure 1 ; Figure 2 This is a schematic diagram of the exploded structure of an automatic clamping device for sheet metal processing in this application; Figure 3 for Figure 1 The structural diagram of the rotating mechanism; Figure 4 for Figure 1 Structural diagram of the switching structure; Figure 5 for Figure 2 Schematic diagram of the local structure at A in the middle; Figure 6 for Figure 5 Schematic diagram of the local structure at B in the middle; Figure 7 for Figure 2 Schematic diagram of the structure in which the plate is placed; Figure 8 for Figure 7 Schematic diagram of the local structure at C in the middle; Fig. 9 for Figure 1 Schematic diagram of the explosion structure of the cleaning mechanism from another perspective; Fig.10 for Fig. 9 Schematic diagram of the local structure at D in the middle; Fig.11 for Fig. 9 Schematic diagram of the local structure at E in the middle; Among them, the reference numerals in the figure are: 1. Rotating mechanism; 11. Base; 12. Support frame; 13. First motor; 14. Rotating shaft; 15. Rotating plate; 16. Chip removal port; 17. Coupling; 2. Clamping mechanism; 21. Placement plate; 211. Countersunk hole; 212. Air hole; 22. Limiting strip; 23. Touch rod; 24. Cylinder; 25. Negative pressure pump; 26. Air chamber; 27. Suction nozzle; 28. Valve body; 281. Valve stem; 29. ​​Bottom plate; 3. Cleaning mechanism; 31. Frame; 32. Roller; 33. Roller cover; 331. Notch; 34. Collecting box; 341. Scraper; 35. Roller; 351. Ridge; 352. Groove; 36. Ratchet; 37. Ratchet pawl; 38. Torsion spring; 39. Fixed axis; 310. Side axis; 4. Switching mechanism; 41. First mounting seat; 42. Second motor; 43. Lead screw; 44. Guide rod; 45. Nut; 46. Guide sleeve; 47. Second mounting seat; 48. Platform. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0022] Embodiment 1 This embodiment describes the basic structure and principle of the automatic clamping device, specifically: like Figure 1-Figure 3 As shown, the present application provides an automatic clamping device for sheet metal processing, comprising a rotating mechanism 1, wherein the rotating mechanism 1 is used to drive the sheet metal to rotate, so as to facilitate processing operations at different angles on the sheet metal; The rotating mechanism 1 includes two sets of bases 11, which serve as supporting parts of the rotating mechanism 1 and are generally fixedly placed on a working area or a surface of a machine tool to stably support the rotating mechanism 1; At the same time, a rotating shaft 14 is rotatably arranged on the two groups of bases 11, and a support frame 12 is arranged on one side of the base 11, and a first motor 13 is fixedly installed on the support frame 12, and a coupling 17 is arranged between the output end of the first motor 13 and the rotating shaft 14, so that the rotating shaft 14 can be driven to rotate by the first motor 13; A rotating plate 15 is fixedly mounted on the rotating shaft 14, so that the rotating plate 15 can rotate synchronously with the rotating shaft 14, thereby changing the angle of the sheet metal placed on the rotating plate 15 to complete the processing of the sheet metal at different angles; like Figure 1-Figure 2 and Figure 4 As shown, a switching mechanism 4 is provided on the rotating plate 15, and the switching mechanism 4 is used to adjust the position of the sheet metal part so that the sheet metal part is in different working positions; The switching mechanism 4 includes a first mounting seat 41 fixedly mounted at one end of the rotating plate 15, and a second mounting seat 47 fixedly mounted at the other end of the rotating plate 15, wherein the second mounting seat 47 and the first mounting seat 41 are arranged along the length direction of the rotating shaft 14; Meanwhile, a second motor 42 is fixedly mounted on the first mounting seat 41, and a lead screw 43 is fixedly mounted on the output end of the second motor 42. The lead screw 43 is rotatably mounted on the first mounting seat 41 and the second mounting seat 47, so that the lead screw 43 can rotate under the drive of the second motor 42; A nut 45 is provided for transmission on the lead screw 43, and a platform 48 is fixedly installed on the nut 45. It should be noted that a guide rod 44 is fixedly installed between the first mounting seat 41 and the second mounting seat 47, and a guide sleeve 46 is slidably provided on the guide rod 44. The guide sleeve 46 is fixedly installed with the platform 48, so that during the rotation of the lead screw 43, the nut 45 can be driven for transmission, and then the platform 48 can be driven to move along the length direction of the lead screw 43 to change the position of the platform 48; like Figure 1-Figure 2 As shown, a clamping mechanism 2 is provided on the platform 48, and the clamping mechanism 2 is used to clamp and fix the sheet metal part; like Figure 5-Figure 6 As shown, the clamping mechanism 2 includes at least one set of cylinders 24 fixedly mounted on the platform 48, and a placement plate 21 is fixedly mounted on the output end of the cylinder 24. The placement plate 21 is suitable for contacting the sheet metal part. At the same time, the placement plate 21 can be driven by the cylinder 24 to move in the vertical direction and be respectively at the upper end position and the lower end position; At the same time, a bottom plate 29 is fixedly installed on the upper end of the platform 48, and two groups of air chambers 26 are fixedly installed on the bottom plate 29, and the two groups of air chambers 26 are connected with suction nozzles 27, and the opening direction of the suction nozzles 27 is toward the bottom of the placement plate 21; like Figure 7-Figure 8 As shown, a countersunk hole 211 adapted to the suction nozzle 27 is opened at the bottom of the placement plate 21, and the size of the countersunk hole 211 is larger than the size of the suction nozzle 27, so that when the placement plate 21 is at the lower end position, the suction nozzle 27 can enter the interior of the countersunk hole 211, and at this time, the edge of the suction nozzle 27 is sealed by the bottom of the countersunk hole 211; At the same time, an air hole 212 penetrating the placement plate 21 is opened at the bottom of the countersunk hole 211, so that air flow can be introduced from the suction nozzle 27 to the position of the air hole 212; like Figure 5-Figure 6 As shown, a negative pressure pump 25 is fixedly installed on the platform 48, and the negative pressure pump 25 is connected to the air chamber 26, so that the negative pressure generated by the negative pressure pump 25 can reach the upper end of the placement plate 21 through the air chamber 26, the suction nozzle 27 and the air hole 212, and adsorb and fix the sheet metal parts released from the placement plate 21.

[0023] In this embodiment, a limit strip 22 can be set at the upper end of the placement plate 21 to limit the corners of the sheet metal part, so that the positioning of the sheet metal part is more accurate, which is beneficial to the processing of the sheet metal part. Because of the action of the rotating mechanism 1, the sheet metal part can be tilted, so that the waste chips accumulated at the limit strip 22 can be automatically discharged when the sheet metal part is tilted.

[0024] In order to automatically clamp and release sheet metal parts, Figure 5-Figure 6 As shown, a valve body 28 is provided on the pipeline connecting the negative pressure pump 25 and the air chamber 26, and a valve stem 281 for controlling the opening and closing of the valve body 28 is provided on the valve body 28. At the same time, a touch rod 23 is fixedly installed at the bottom of the placement plate 21, and the touch rod 23 corresponds to the valve stem 281, so that when the placement plate 21 reaches the lower end position, the touch rod 23 can contact the valve stem 281 and make the valve stem 281 rotate, thereby opening the pipeline connecting the negative pressure pump 25 and the air chamber 26, and at this time, the suction nozzle 27 is just inside the counterbore 211, so that the negative pressure pump 25 can act on the sheet metal to adsorb the sheet metal; In this embodiment, a coil spring (not shown in the figure) is arranged between the valve stem 281 and the valve body 28, so that when the placement plate 21 is in the upper end position, the touch rod 23 is separated from the valve stem 281, and the valve stem 281 can be rotated and reset under the action of the coil spring, thereby closing the pipeline connecting the negative pressure pump 25 and the air chamber 26, and at this time the suction nozzle 27 is separated from the counterbore 211, so that the negative pressure pump 25 cannot act on the sheet metal, thereby loosening the sheet metal.

[0025] Preferably, Figure 3 As shown, a plurality of chip removal openings 16 are provided on the rotating plate 15 , and the chip removal openings 16 are used to remove waste chips that may be generated during the processing of the sheet metal parts, so as to facilitate continuous processing.

[0026] Embodiment 2 As the sheet metal parts are continuously processed, impurities and scraps will adhere to the placement plate 21. If they are not cleaned, it will not only affect the subsequent processing of the sheet metal parts, but also may block the air holes 212, so that the strength of the negative pressure clamping is affected. In order to solve the above problems, Figure 1 As shown, a cleaning mechanism 3 is provided on the rotating plate 15, and the cleaning mechanism 3 is used to clean the waste on the placement plate 21. It should be noted that when the placement plate 21 is at a position away from the second motor 42, the sheet metal part is at a processing position and performs processing operations, and when the placement plate 21 is driven by the switching mechanism 4 and slowly approaches the position of the second motor 42, the sheet metal part is at a cleaning position, and the cleaning mechanism 3 is used to process the waste on its surface; like Figure 1 and Figure 9-11As shown, the cleaning mechanism 3 includes two sets of frames 31 fixedly mounted on the rotating plate 15, a roller shaft 32 is fixedly mounted between the two sets of frames 31, and a roller 35 is rotatably arranged on the roller shaft 32, so that the roller 35 can rotate around the roller shaft 32 on the two sets of frames 31, and the bottom of the roller 35 contacts the upper surface of the placement plate 21 in the raised state, so that when the placement plate 21 approaches the roller 35, the roller 35 contacts the waste chips on the placement plate 21, so that the waste chips are cleaned and dropped into the chip discharge port 16; Meanwhile, a roller cover 33 is fixedly mounted on the roller shaft 32, and the roller cover 33 is located at the upper end of the roller 35. Meanwhile, a collecting box 34 is fixedly mounted on one side of the roller cover 33, and the collecting box 34 is located at a position of the roller 35 close to the clamping mechanism 2, so as to collect impurities adhering to the roller 35. Meanwhile, a notch 331 is provided on the roller cover 33, and a scraper 341 is provided on the collecting box 34 at the position of the notch 331. The scraper 341 is suitable for contacting the outer surface of the roller 35, so that when the placing plate 21 approaches the roller 35, the scraper 341 continuously contacts the outer surface of the roller 35 and scrapes off the impurities adhering to the surface of the roller 35. It should be noted that a material guiding slope (not shown in the figure) is provided on the scraper 341 along a position close to the collecting box 34 , and the height of the material guiding slope gradually decreases along the position close to the collecting box 34 , so that the impurities scraped off by the scraper 341 will enter the collecting box 34 along the material guiding slope.

[0027] Because the collection box 34 is only provided on one side of the roller cover 33, when the roller 35 rotates in the reverse direction, it cannot be effectively cleaned, thereby causing contamination of the roller 35; To solve this problem, continue to refer to Figure 10-11 A side shaft 310 is fixedly installed on the side of the roller 35, and the side shaft 310 is sleeved on the roller shaft 32. At the same time, a ratchet 36 is fixedly installed on the outer ring of the side shaft 310; Meanwhile, a fixed shaft 39 is fixedly mounted on the roller cover 33, a pawl 37 is rotatably mounted on the fixed shaft 39, the pawl 37 cooperates with the ratchet 36, and a torsion spring 38 is fixedly mounted between the fixed shaft 39 and the pawl 37 to facilitate the resetting of the pawl 37; In summary, when the placement plate 21 moves toward the direction close to the roller 35, the cleaning operation of the roller 35 causes a lot of impurities to adhere to the surface. At this time, the scraper 341 contacts the surface of the roller 35, thereby scraping the impurities on the surface of the roller 35 into the collection box 34, so that the surface of the roller 35 is kept clean. Since the roller 35 continues to rotate under the friction of the placement plate 21, the ratchet 36 rotates synchronously with the roller 35, and the pawl 37 does not affect the rotation of the ratchet 36 at this time; When the placement plate 21 moves in the direction away from the roller 35, the roller 35 will rotate in the opposite direction. At this time, the ratchet 36 is in a one-way locked state under the action of the pawl 37, so that the roller 35 cannot rotate. At this time, the position where the roller 35 contacts the surface of the placement plate 21 is always at the same position, thereby preventing the placement plate 21 from being contaminated by impurities when it is reset.

[0028] Continue to refer Figure 10-11 The roller 35 is provided with ridges 351 and grooves 352 at intervals along the circumferential direction, and the position of the grooves 352 corresponds to the position of the teeth on the ratchet 36, so that when the ratchet 36 is locked, the position of the grooves 352 can be located at the bottom of the roller 35, and then when the roller 35 is reset, the bottom of the roller 35 will not contact the surface of the placement plate 21, thereby further preventing the placement plate 21 from being contaminated again; In this embodiment, the scraper 341 is made of elastic material so as to be able to reach the ridges 351 and the grooves 352 , so that impurities adhered to the ridges 351 and the grooves 352 can be well processed.

[0029] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic clamping device for sheet metal processing, characterized in that: include: A rotating mechanism (1), the rotating mechanism (1) being suitable for driving a sheet metal part to be in a horizontal state or an inclined state, the rotating mechanism (1) comprising a rotating plate (15); A switching mechanism (4), the switching mechanism (4) being mounted on the rotating mechanism (1), the switching mechanism (4) having a platform (48) suitable for movement; at least one set of cylinders (24), the cylinders (24) being mounted on the platform (48); A placement plate (21), the placement plate (21) being mounted on an output end of the cylinder (24); A bottom plate (29), the bottom plate (29) being mounted on the platform (48); at least one set of air chambers (26), the air chambers (26) being mounted on the base plate (29); a suction nozzle (27), the suction nozzle (27) being in communication with the air chamber (26), the opening direction of the suction nozzle (27) being directed toward the bottom of the placement plate (21); A countersunk hole (211), the countersunk hole (211) being arranged on the placement plate (21); an air hole (212), the air hole (212) being arranged at the bottom of the countersunk hole (211) and penetrating the placement plate (21); A negative pressure pump (25), the negative pressure pump (25) being in communication with the air chamber (26); The placement plate (21) is adapted to be in an upper position and a lower position under the drive of the cylinder (24); when the placement plate (21) is in the lower position, it is adapted to be connected with the suction nozzle (27) and to suck and clamp the sheet metal part; and when the placement plate (21) is in the upper position, it is adapted to be separated from the suction nozzle (27) and to release the sheet metal part.

2. The automatic clamping device for sheet metal processing according to claim 1, characterized in that: A valve body (28) is provided on the pipeline connecting the negative pressure pump (25) and the air chamber (26); a valve stem (281) for controlling the on / off state of the valve body (28) is provided on the valve body (28); a touch rod (23) is fixedly mounted on the bottom of the placement plate (21); the touch rod (23) corresponds to the valve stem (281).

3. The automatic clamping device for sheet metal processing according to claim 2, characterized in that: A coil spring is provided between the valve stem (281) and the valve body (28).

4. The automatic clamping device for sheet metal processing according to claim 1, characterized in that: A limiting strip (22) is provided at the upper end of the placement plate (21).

5. The automatic clamping device for sheet metal processing according to claim 3, characterized in that: The rotating mechanism (1) comprises two groups of bases (11), on which rotating shafts (14) are rotatably arranged, a support frame (12) is arranged on one side of the base (11), a first motor (13) is fixedly mounted on the support frame (12), a coupling (17) is arranged between an output end of the first motor (13) and the rotating shaft (14), and the rotating plate (15) is mounted on the rotating shaft (14).

6. The automatic clamping device for sheet metal processing according to claim 5, characterized in that: The switching mechanism (4) comprises a first mounting seat (41) fixedly mounted on one end of the rotating plate (15), and a second mounting seat (47) fixedly mounted on the other end of the rotating plate (15), wherein the second mounting seat (47) and the first mounting seat (41) are arranged along the length direction of the rotating shaft (14); A second motor (42) is fixedly mounted on the first mounting seat (41), a lead screw (43) is fixedly mounted on the output end of the second motor (42), and the lead screw (43) is rotatably mounted on the first mounting seat (41) and the second mounting seat (47); A nut (45) is provided on the lead screw (43) for transmission, the platform (48) is fixedly mounted on the nut (45), a guide rod (44) is fixedly mounted between the first mounting seat (41) and the second mounting seat (47), a guide sleeve (46) is slidably provided on the guide rod (44), and the guide sleeve (46) is fixedly mounted on the platform (48).

7. The automatic clamping device for sheet metal processing according to claim 6, characterized in that: The rotating plate (15) is provided with a plurality of groups of chip removal openings (16).

8. The automatic clamping device for sheet metal processing according to claim 7, characterized in that: A cleaning mechanism (3) is provided on the rotating plate (15), and the cleaning mechanism (3) comprises two groups of frames (31) fixedly mounted on the rotating plate (15), a roller shaft (32) being fixedly mounted between the two groups of frames (31), a roller (35) being rotatably provided on the roller shaft (32), and a bottom of the roller (35) being in contact with an upper surface of the placement plate (21) in a raised state.

9. The automatic clamping device for sheet metal processing according to claim 8, characterized in that: A roller cover (33) is fixedly mounted on the roller shaft (32), the roller cover (33) is located at the upper end of the roller barrel (35), and a collection box (34) is fixedly mounted on one side of the roller cover (33); The roller cover (33) is provided with a notch (331), and a scraper (341) is provided on the collection box (34) at the position of the notch (331), the scraper (341) being made of elastic material, and the scraper (341) being suitable for contacting the outer surface of the roller (35); A material guiding slope is provided on the scraper (341) along a position close to the collecting box (34), and the height of the material guiding slope gradually decreases along a position close to the collecting box (34).

10. The automatic clamping device for sheet metal processing according to claim 9, characterized in that: A side shaft (310) is fixedly mounted on the side of the roller (35); the side shaft (310) is sleeved on the roller shaft (32); and a ratchet (36) is fixedly mounted on the outer ring of the side shaft (310); A fixed shaft (39) is fixedly mounted on the roller cover (33); a ratchet (37) is rotatably mounted on the fixed shaft (39); the ratchet (37) cooperates with the ratchet wheel (36); a torsion spring (38) is fixedly mounted between the fixed shaft (39) and the ratchet (37); The roller (35) is provided with ridges (351) and grooves (352) at intervals along the circumferential direction, and the position of the groove (352) corresponds to the position of the teeth on the ratchet wheel (36).

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