Clamping and overturning equipment for sheet metal part machining

Abstract

The utility model discloses clamping turnover equipment for sheet metal part machining, and relates to the technical field of sheet metal part machining device design, the clamping turnover equipment comprises a supporting base, a turnover adjusting unit and a sheet metal fixing unit, supporting blocks are arranged at the four corners of the lower side of the supporting base, and a sheet metal fixing table is arranged on the surface of the upper side of the supporting base; the metal plate fixing unit is arranged on the upper side of the metal plate fixing table, the overturning adjusting unit comprises supporting transverse rods, a first electric push rod, an adjusting sliding block, a fixing vertical rod, a height adjusting sliding block and a second electric push rod, the supporting transverse rods are fixedly connected to the surfaces of the left side and the right side of the metal plate fixing table respectively, and the sliding grooves are formed in the upper sides of the two supporting transverse rods respectively. When the sheet metal part is machined and turned over, the sheet metal part can be carried through the device, manpower is saved, the machining time of the sheet metal part is shortened, and the sheet metal part is prevented from deviating and being damaged when turned over.

Description

TECHNICAL FIELD

[0001] The utility model relates to sheet metal part machining device design technical field, concretely is a kind of sheet metal part machining's clamping and overturning equipment. BACKGROUND

[0002] Sheet metal is a kind of comprehensive cold working process for metal sheet (usually below 6mm), including cutting, punching / cutting / complexing, folding, welding, riveting, splicing, forming (such as automobile body) etc. Its significant feature is that the same part thickness is consistent. The product processed by sheet metal process is called sheet metal part, and sheet metal part is the product processed by sheet metal process, which is everywhere in our life. Sheet metal part is made by filament power winding, laser cutting, heavy processing, metal bonding, metal drawing, plasma cutting, precision welding, roll forming, metal plate bending, die forging, water jet cutting. During sheet metal part machining, different surfaces usually need to be machined, in order to facilitate overturning processing, thus a sheet metal part machining clamping and overturning equipment is needed.

[0003] The existing sheet metal part machining clamping and overturning equipment has the problems that during sheet metal part machining, the operator needs to carry during overturning, which is time-consuming and labor-intensive, increases the processing time of sheet metal part, and the sheet metal part is easy to deviate during overturning, which may cause damage to the sheet metal part. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem of overcoming the defects of the prior art, and provides a sheet metal part machining clamping and overturning equipment, which can carry the sheet metal part during machining and overturning, save labor, reduce the processing time of the sheet metal part, prevent the sheet metal part from deviating during overturning, prevent the sheet metal part from being damaged, and effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sheet metal part machining clamping and overturning equipment, comprising a supporting base, a overturning adjusting unit and a sheet metal fixing unit.

[0006] The supporting base: the lower side four corners are provided with supporting blocks, the supporting base upper side surface is provided with sheet metal fixing table, the sheet metal fixing table upper side is provided with sheet metal fixing unit;

[0007] The turnover adjusting unit comprises support cross bars, electric push rods, adjusting sliding blocks, fixed vertical rods, height adjusting sliding blocks and electric push rods, the left and right surfaces of the sheet metal fixing table are respectively fixedly connected with a support cross bar, a sliding groove is formed in the upper side of each of the two support cross bars, the upper and lower sides of each of the two support cross bars are respectively penetrated by the sliding groove, a cylinder is fixedly connected in each of the two sliding grooves, an adjusting sliding block is slidably connected in each of the two sliding grooves, the sliding holes in the two adjusting sliding blocks are slidably connected with the corresponding cylinders, push blocks are arranged on the lower surfaces of the two adjusting sliding blocks, the lower sides of the two support cross bars are fixedly connected with the electric push rods through push rod fixing supports, the extension ends of the two electric push rods are fixedly connected with the corresponding push blocks, a fixed vertical rod is fixedly connected with the upper surface of each of the two adjusting sliding blocks, a sliding groove two is formed in the side of each of the two fixed vertical rods, the left and right sides of each of the two fixed vertical rods are respectively penetrated by the sliding groove two, a height adjusting sliding block is slidably connected in each of the two sliding groove two, the upper sides of the two fixed vertical rods are fixedly connected with the electric push rods two through fixed support supports, the extension ends of the two electric push rods two extend into the sliding groove two and are fixedly connected with the corresponding height adjusting sliding blocks, and the input ends of the electric push rods one and the electric push rods two are electrically connected with the output end of the external power supply through the external control switch group.

[0008] The support base is used for fixing use, the sheet metal fixing table is used for placing sheet metal parts, the sheet metal fixing unit is used for fixing sheet metal parts, the support cross bar is used for fixing the electric push rod one and the adjusting sliding block, the electric push rod one is started to push the adjusting sliding block to move, so that different specifications of sheet metal parts are fixed, the adjusting sliding block is used for fixing the fixed vertical rod, the fixed vertical rod is used for fixing the height adjusting sliding block, the electric push rod two is started to push the height adjusting sliding block to move, so that the height is adjusted, the sheet metal parts are conveniently taken, and thus the turnover use is facilitated, and different specifications of sheet metal parts are adjusted.

[0009] Further, the turnover adjusting unit further comprises rotating adjusting cylinders, a power motor and clamping fixing blocks, rotating circular holes are formed in the sides, opposite to each other, of the two height adjusting sliding blocks, the rotating circular holes are rotatably connected with the rotating adjusting cylinders through bearings, one clamping fixing block is fixedly connected with each of the two rotating adjusting cylinders, the sides, opposite to each other, of the two rotating adjusting cylinders are fixedly connected with the clamping fixing blocks, the sides, away from the clamping fixing blocks, of the fixed vertical rods are fixedly connected with the power motor through motor support supports, the output shafts of the power motor are fixedly connected with the corresponding rotating adjusting cylinders, and the input end of the power motor is electrically connected with the output end of the external power supply through the external control switch group.

[0010] The rotating adjusting cylinder is used for rotating the clamping fixing block, so that the turnover use is realized, the clamping fixing block is used for clamping sheet metal parts, so that the machining use is realized, and the power motor is used for providing power, so that the turnover use is facilitated.

[0011] Further, the turnover adjusting unit further comprises two-way threaded columns, an adjusting handrail and clamping fixing claws, two clamping fixing blocks are respectively provided with sliding grooves three on opposite sides, one two-way threaded column is rotatably connected in each of the two sliding grooves three, the threaded directions of the two-way threaded columns are opposite, the upper ends of the two two-way threaded columns are respectively extended to the upper sides of the clamping fixing blocks and fixedly connected with the adjusting handrail, two clamping sliding blocks are slidably connected in each of the two sliding grooves three, and the threaded holes in each clamping sliding block are threadedly connected with the corresponding two-way threaded column.

[0012] The two-way threaded columns are used for adjusting the positions of the clamping fixing claws, the clamping fixing claws are used for clamping the sheet metal parts, thereby facilitating turnover use, and the adjusting handrail is used for rotating the two-way threaded columns, thereby facilitating turnover use.

[0013] Further, the sheet metal fixing unit comprises fixing support frames, adjusting studs and fixing pressing blocks, two fixing support frames are arranged at equal intervals on the front and rear surfaces of the sheet metal fixing table, four fixing support frames are arranged at the positions of the four corners of the sheet metal fixing table, a threaded hole is formed in each fixing support frame, the threaded hole in each fixing support frame is threadedly connected with the corresponding adjusting stud, the adjusting stud is rotatably connected to the corresponding fixing support frame, and a fixing pressing block is fixedly connected to the lower end of each adjusting stud.

[0014] The fixing support frames are used for fixing the adjusting studs, the adjusting studs are used for adjusting the positions of the fixing pressing blocks, and the fixing pressing blocks are used for pressing the sheet metal parts, thereby facilitating clamping and fixing use.

[0015] Further, the sheet metal fixing unit further comprises rotating handrails, and one rotating handrail is fixedly connected to the upper end of each adjusting stud.

[0016] The rotating handrails are used for rotating the adjusting studs, thereby adjusting the positions of the fixing pressing blocks, and thereby facilitating clamping and fixing use.

[0017] Further, the sheet metal fixing unit further comprises sheet metal fixing suction cups, a limiting groove is formed in the upper surface of the sheet metal fixing table, and four sheet metal fixing suction cups are arranged in the limiting groove in a rectangular array.

[0018] The sheet metal fixing suction cups are used for fixing the sheet metal parts, thereby facilitating machining use and preventing the sheet metal parts from deviating during machining.

[0019] Compared with the prior art, the sheet metal fixing table has the advantages that:

[0020] 1. The clamping and overturning device for sheet metal machining has the following advantages: the overturning adjusting unit is provided, the supporting cross rod is used for fixing the electric push rod I and the adjusting sliding block, the electric push rod I is started to push the adjusting sliding block to move, thereby fixing the sheet metal of different specifications, the adjusting sliding block is used for fixing the fixed vertical rod, the fixed vertical rod is used for fixing the height adjusting sliding block, the electric push rod II is started to push the height adjusting sliding block to move, thereby adjusting the height, facilitating the taking of the sheet metal, thereby facilitating the overturning use, the rotating adjusting cylinder is used for rotating the clamping fixed block, thereby facilitating the overturning use, the clamping fixed block is used for clamping the sheet metal, thereby facilitating the machining use, the power motor is used for providing power, the bidirectional screw column is used for adjusting the position of the clamping fixed jaw, and the clamping fixed jaw is used for clamping the sheet metal, thereby facilitating the overturning use, and the adjusting handrail is used for rotating the bidirectional screw column to facilitate the overturning use.

[0021] 2. The clamping and overturning device for sheet metal machining has the following advantages: the sheet metal fixing unit is provided, the fixed supporting frame is used for fixing the adjusting stud, the adjusting stud is used for adjusting the position of the fixed pressing block, the fixed pressing block is used for pressing the sheet metal, the rotating handrail is used for rotating the adjusting stud, thereby adjusting the position of the fixed pressing block, the sheet metal fixing suction cup is used for fixing the sheet metal, thereby facilitating the machining use, preventing the sheet metal from deviating during machining, and facilitating the fixed clamping use, thereby facilitating the machining use.

[0022] 3. The clamping and overturning device for sheet metal machining has the following advantages: the sheet metal can be transported by the device during overturning during machining, manpower is saved, the machining time of the sheet metal is reduced, the sheet metal is prevented from deviating during overturning, and the sheet metal is prevented from being damaged. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 It is a front structure schematic view of the utility model;

[0024] Fig. 2 It is a back sectional structure schematic view of the utility model;

[0025] Fig. 3 It is a local structure schematic view of the overturning adjusting unit of the utility model.

[0026] In the drawing: 1 supporting base, 2 sheet metal fixing table, 3 overturning adjusting unit, 31 supporting cross rod, 32 electric push rod I, 33 adjusting sliding block, 34 fixed vertical rod, 35 height adjusting sliding block, 36 electric push rod II, 37 rotating adjusting cylinder, 38 power motor, 39 clamping fixed block, 310 bidirectional screw column, 311 adjusting handrail, 312 clamping fixed jaw, 4 sheet metal fixing unit, 41 sheet metal fixing suction cup, 42 fixed supporting frame, 43 adjusting stud, 44 fixed pressing block, 45 rotating handrail. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0028] Please refer to Figs. 1-3 The embodiment provides a technical scheme: a clamping and overturning device for sheet metal part machining, comprising a supporting base 1, an overturning adjusting unit 3 and a sheet metal fixing unit 4.

[0029] The supporting base 1 is provided with supporting blocks at the lower four corners, and a sheet metal fixing table 2 is arranged on the upper surface of the supporting base 1, and the sheet metal fixing table 2 is provided with the sheet metal fixing unit 4 on the upper side.

[0030] The overturning adjusting unit 3 comprises a supporting cross rod 31, an electric push rod 32, an adjusting sliding block 33, a fixed vertical rod 34, a height adjusting sliding block 35 and an electric push rod 36, one supporting cross rod 31 is fixedly connected to each of the left and right surfaces of the sheet metal fixing table 2, one sliding groove is formed in the upper side of each of the two supporting cross rods 31, the two sliding grooves penetrate the upper and lower sides of the corresponding supporting cross rods 31, a cylinder is fixedly connected in each of the two sliding grooves, an adjusting sliding block 33 is slidingly connected in each of the two sliding grooves, the sliding holes in the two adjusting sliding blocks 33 are slidingly connected in the corresponding cylinders, a push block is arranged on the lower surface of each of the two adjusting sliding blocks 33, the two supporting cross rods 31 are fixedly connected to the electric push rod 32 through a push rod fixing frame, the extension ends of the two electric push rods 32 are fixedly connected to the corresponding push blocks, a fixed vertical rod 34 is fixedly connected to the upper surface of each of the two adjusting sliding blocks 33, a sliding groove two is formed in the side opposite to the corresponding fixed vertical rod 34, the sliding groove two penetrates the left and right sides of the corresponding fixed vertical rod 34, a height adjusting sliding block 35 is slidingly connected in each of the two sliding grooves two, the upper side of each of the two fixed vertical rods 34 is fixedly connected to the electric push rod 36 through a fixed support frame, the extension ends of the two electric push rods 36 extend into the sliding groove two and are fixedly connected to the corresponding height adjusting sliding blocks 35, and the input ends of the electric push rod 32 and the electric push rod 36 are electrically connected to the output end of an external power supply through an external control switch group.

[0031] The support base 1 is used for fixing, the sheet metal fixing table 2 is used for placing sheet metal parts, the sheet metal fixing unit 4 is used for fixing sheet metal parts, the support cross rod 31 is used for fixing the electric push rod 32 and the adjusting sliding block 33, the electric push rod 32 is started to push the adjusting sliding block 33 to move, thereby fixing different specifications of sheet metal parts, the adjusting sliding block 33 is used for fixing the fixed vertical rod 34, the fixed vertical rod 34 is used for fixing the height adjusting sliding block 35, the electric push rod 36 is started to push the height adjusting sliding block 35 to move, thereby adjusting the height, facilitating the taking of sheet metal parts, thereby facilitating the use of turning to adjust different specifications of sheet metal parts.

[0032] The turning adjusting unit 3 further comprises a rotating adjusting cylinder 37, a power motor 38 and a clamping fixed block 39, two sides opposite to each other of the two height adjusting sliding blocks 35 are respectively provided with rotating circular holes, the two rotating circular holes are respectively connected with the rotating adjusting cylinder 37 through bearings, two sides opposite to each other of the two rotating adjusting cylinders 37 are respectively fixedly connected with one clamping fixed block 39, one fixed vertical rod 34 located on the side away from the clamping fixed block 39 is respectively fixedly connected with the power motor 38 through a motor support frame, the output shaft of the power motor 38 is fixedly connected with the corresponding rotating adjusting cylinder 37, and the input end of the power motor 38 is electrically connected with the output end of an external power supply through an external control switch group.

[0033] The rotating adjusting cylinder 37 is used for rotating the clamping fixed block 39, thereby facilitating the use of turning, the clamping fixed block 39 is used for clamping sheet metal parts, thereby facilitating the use of processing, and the power motor 38 is used for providing power, thereby facilitating the use of turning.

[0034] The turning adjusting unit 3 further comprises a bidirectional threaded column 310, an adjusting handrail 311 and a clamping fixed jaw 312, two sides opposite to each other of the two clamping fixed blocks 39 are respectively provided with sliding grooves three, one bidirectional threaded column 310 is rotatably connected in each of the two sliding grooves three, the screw thread directions of the two bidirectional threaded columns 310 are opposite, the upper ends of the two bidirectional threaded columns 310 extend to the upper sides of the clamping fixed blocks 39 and are fixedly connected with the adjusting handrail 311, two equidistant clamping sliding blocks are slidably connected in each of the two sliding grooves three, the screw holes in each clamping sliding block are threadedly connected with the corresponding bidirectional threaded column 310, and one clamping fixed jaw 312 is fixedly connected with each of the four sides opposite to each other of the four clamping fixed blocks 39. Friction patterns are arranged on the upper and lower clamping surfaces of the four clamping fixed jaws 312.

[0035] The bidirectional threaded column 310 is used for adjusting the position of the clamping fixed jaw 312, the clamping fixed jaw 312 is used for clamping sheet metal parts, thereby facilitating the use of turning, and the adjusting handrail 311 is used for rotating the bidirectional threaded column 310, thereby facilitating the use of turning.

[0036] The sheet metal fixing unit 4 comprises a fixing support frame 42, an adjusting stud 43 and a fixing block 44. Two fixing support frames 42 are arranged on the front and rear surfaces of the sheet metal fixing table 2 at equal intervals. Four fixing support frames 42 are arranged at the four corners of the sheet metal fixing table 2. A threaded hole is formed in each fixing support frame 42. The threaded hole in each fixing support frame 42 is threadedly connected with the corresponding adjusting stud 43. The adjusting stud 43 is rotatably connected to the corresponding fixing support frame 42. The lower end of each adjusting stud 43 is fixedly connected with a fixing block 44. The lower side of each fixing block 44 is provided with a plurality of rectangular arrayed rubber protrusions.

[0037] The fixing support frame 42 is used for fixing the adjusting stud 43. The adjusting stud 43 is used for adjusting the position of the fixing block 44. The fixing block 44 is used for pressing the sheet metal part, thereby facilitating clamping and fixing.

[0038] The sheet metal fixing unit 4 further comprises a rotating handrail 45. The upper end of each adjusting stud 43 is fixedly connected with a rotating handrail 45.

[0039] The rotating handrail 45 is used for rotating the adjusting stud 43, thereby adjusting the position of the fixing block 44 and facilitating clamping and fixing.

[0040] The sheet metal fixing unit 4 further comprises a sheet metal fixing suction cup 41. A limiting groove is formed in the upper surface of the sheet metal fixing table 2. Four sheet metal fixing suction cups 41 are arranged in the limiting groove in a rectangular array.

[0041] The sheet metal fixing suction cup 41 is used for fixing the sheet metal part, thereby facilitating processing and preventing the sheet metal part from deviating during processing.

[0042] The working principle of the clamping and overturning equipment for sheet metal part machining is as follows: firstly, the fixed support frame 42 is used for fixing the adjusting stud 43, the adjusting stud 43 is used for adjusting the position of the fixed pressing block 44, the fixed pressing block 44 is used for pressing the sheet metal part, the rotating handrail 45 is used for rotating the adjusting stud 43, thereby the position of the fixed pressing block 44 is adjusted, the sheet metal fixing suction disc 41 is used for fixing the sheet metal part, convenient for machining and use, preventing the sheet metal part from deviating during machining, and then when overturning is needed, the supporting cross rod 31 is used for fixing the electric push rod one 32 and the adjusting sliding block 33, the electric push rod one 32 is started to push the adjusting sliding block 33 to move, thereby the sheet metal parts of different specifications are fixed, the adjusting sliding block 33 is used for fixing the fixed vertical rod 34, the fixed vertical rod 34 is used for fixing the height adjusting sliding block 35, the electric push rod two 36 is started to push the height adjusting sliding block 35 to move, thereby the height is adjusted, the sheet metal part is conveniently taken, thereby the overturning is conveniently used, the rotating adjusting cylinder 37 is used for rotating the clamping and fixing block 39, thereby the overturning is used, the clamping and fixing block 39 is used for clamping the sheet metal part, thereby the machining is used, the power motor 38 is used for providing power, the bidirectional threaded column 310 is used for adjusting the position of the clamping and fixing claw 312, the clamping and fixing claw 312 is used for clamping the sheet metal part, thereby the overturning is conveniently used, the adjusting handrail 311 is used for rotating the bidirectional threaded column 310 to use the overturning.

[0043] It is worth noting that the external control switch group core chip selected in the above embodiment is a PLC single-chip microcomputer, the power motor 38 is a servo power motor, and the external control power motor 38, the electric push rod one 32 and the electric push rod two 36 work by using the method commonly used in the prior art.

[0044] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion by using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A clamping and turning device for sheet metal work, characterized in that: Including support base (1), turnover adjustment unit (3) and sheet metal fixed unit (4); Support base (1): the lower side four corners are provided with support blocks, the upper surface of the support base (1) is provided with a sheet metal fixing table (2), and the upper side of the sheet metal fixing table (2) is provided with a sheet metal fixing unit (4); Turnover adjustment unit (3): containing support cross bar (31), electric push rod one (32), adjustment sliding block (33), fixed vertical rod (34), height adjustment sliding block (35) and electric push rod two (36), the left and right side surfaces of the sheet metal fixing table (2) are respectively fixedly connected with one support cross bar (31), two sliding grooves are respectively formed in the upper sides of the two support cross bars (31), the two sliding grooves respectively penetrate the upper and lower sides of the corresponding support cross bars (31), one cylinder is fixedly connected in each of the two sliding grooves, one adjustment sliding block (33) is slidably connected in each of the two sliding grooves, the slide holes in the two adjustment sliding blocks (33) are slidably connected in the corresponding cylinders, push blocks are arranged on the lower side surfaces of the two adjustment sliding blocks (33), the lower sides of the two support cross bars (31) are fixedly connected with electric push rod one (32) through a push rod fixing frame, the extension ends of the two electric push rod one (32) are fixedly connected with the corresponding push blocks, one fixed vertical rod (34) is fixedly connected to the upper side surface of each of the two adjustment sliding blocks (33), slide grooves two are formed in the sides opposite to the two fixed vertical rods (34), the two slide grooves two respectively penetrate the left and right sides of the corresponding fixed vertical rods (34), one height adjustment sliding block (35) is slidably connected in each of the two slide grooves two, the upper sides of the two fixed vertical rods (34) are fixedly connected with electric push rod two (36) through a fixed support frame, the extension ends of the two electric push rod two (36) extend into the slide grooves two and are fixedly connected with the corresponding height adjustment sliding blocks (35), and the input ends of the electric push rod one (32) and the electric push rod two (36) are electrically connected with the output end of an external power supply through an external control switch group.

2. The clamping and turnover device for sheet metal machining according to claim 1, characterized in that: The turnover adjustment unit (3) further comprises rotating adjustment cylinders (37), power motors (38) and clamping fixed blocks (39), rotating circular holes are formed in the sides opposite to the two height adjustment sliding blocks (35), the two rotating circular holes are rotatably connected with rotating adjustment cylinders (37) through bearings, one clamping fixed block (39) is fixedly connected to the side opposite to each of the two rotating adjustment cylinders (37), and one power motor (38) is fixedly connected to the side of each of the fixed vertical rods (34) away from the clamping fixed block (39) through a motor support frame, an output shaft of the power motor (38) is fixedly connected with the corresponding rotating adjustment cylinder (37), and the input end of the power motor (38) is electrically connected with the output end of an external power supply through an external control switch group.

3. The clamping and turnover device for sheet metal machining according to claim 2, characterized in that: The turnover adjusting unit (3) further comprises two-way threaded columns (310), an adjusting handrail (311), and clamping fixed claws (312). Two clamping fixed blocks (39) are respectively provided with sliding grooves three on opposite sides. One two-way threaded column (310) is rotatably connected in each sliding groove three. The threaded directions of each two-way threaded column (310) are opposite. The upper ends of the two two-way threaded columns (310) respectively extend to the upper sides of the clamping fixed blocks (39) and are fixedly connected with the adjusting handrail (311). Two clamping sliding blocks with equal intervals are respectively connected in the two sliding grooves three. The threaded holes in each clamping sliding block are threadedly connected on the corresponding two-way threaded column (310). One clamping fixed claw (312) is fixedly connected on the opposite side of each of the four clamping fixed blocks (39). The upper and lower clamping surfaces of the four clamping fixed claws (312) are respectively provided with friction patterns.

4. The clamping and turnover device for sheet metal machining according to claim 1, characterized in that: The sheet metal fixing unit (4) comprises fixed support frames (42), adjusting studs (43), and fixed pressing blocks (44). Two fixed support frames (42) with equal intervals are respectively arranged on the front and rear surfaces of the sheet metal fixing table (2). The four fixed support frames (42) are located at the four corners of the sheet metal fixing table (2). Screw holes are respectively arranged in each fixed support frame (42). The screw holes in each fixed support frame (42) are respectively threadedly connected with the corresponding adjusting stud (43). The adjusting stud (43) is rotatably connected on the corresponding fixed support frame (42). The lower end of each adjusting stud (43) is fixedly connected with one fixed pressing block (44). The lower side of each fixed pressing block (44) is respectively provided with a plurality of rubber protrusions arranged in a rectangular array.

5. The clamping and turnover device for sheet metal machining according to claim 4, characterized in that: The sheet metal fixing unit (4) further comprises rotating handrails (45). The upper end of each adjusting stud (43) is fixedly connected with one rotating handrail (45).

6. The clamping and turnover device for sheet metal machining according to claim 4, characterized in that: The sheet metal fixing unit (4) further comprises sheet metal fixing suction discs (41). A limiting groove is arranged on the upper surface of the sheet metal fixing table (2). Four sheet metal fixing suction discs (41) arranged in a rectangular array are arranged in the limiting groove.

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