CN213530267U

CN213530267U - Steel plate edge bending device

Info

Publication number: CN213530267U
Application number: CN202022068956.9U
Authority: CN
Inventors: 马德龙
Original assignee: Hangzhou Longyao Power Accessories Co ltd
Current assignee: Hangzhou Longyao Power Accessories Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-06-25
Anticipated expiration: 2030-09-18

Abstract

The utility model relates to a steel sheet crimping device, it includes the frame, is provided with the fixing base in the frame, and the bending groove that supplies the work piece to place is seted up to the up end of fixing base, still slides in the frame and is connected with the pressure head, and the pressure head is located the top of fixing base, and the glide direction of pressure head is towards being close to or keeping away from the fixing base setting, still is provided with the driving piece in the frame, and the driving piece drive pressure head removes. Through setting up pressure head, fixing base and the groove of bending, the control pressure head extrudees the steel sheet and makes the steel sheet embedding bend the inslot and can buckle the steel sheet, need not manual operation and buckle the steel sheet for it is more convenient to buckle the steel sheet.

Description

Steel plate edge bending device

Technical Field

The application relates to the field of steel plate processing devices, in particular to a steel plate edge bending device.

Background

The steel sheet is a flat steel sheet which is cast with molten steel, cooled, and pressed. In order to form the steel plate into a product, the steel plate needs to be cut, welded, bent and the like. The bending of the steel plate is generally processed by a bending device.

Chinese utility model patent that patent publication number is CN206263040U discloses a steel sheet device of buckling, including the handle, buckle the head, the handle is solid cylinder steel pipe, and the handle end has the internal thread, can connect the cylinder steel pipe of the same size with lengthening handle length, buckle the head and be two solid cylinder pipes, and two solid cylinder pipe point ends are slightly thin, and the end is slightly thick, and end and handle top welding, the angle between two solid cylinder pipes and the handle is 90-120, and two solid cylinder pipes are parallel, and the intermediate separation is 0.3-0.6 cm.

By adopting the steel plate bending device, the inventor finds that after the steel plate is inserted into the spacing part between the two solid cylindrical pipes, the handle needs to be shaken leftwards and rightwards, and then the bending part is knocked by a small hammer to realize the steel plate bending, so that the steel plate bending device is troublesome and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to improve the trouble problem of steel sheet of buckling, this application provides a steel sheet crimping device.

The application provides a steel sheet crimping device adopts following technical scheme:

the utility model provides a steel sheet crimping device, includes the frame, be provided with the fixing base in the frame, the bending groove that supplies the work piece to place is seted up to the up end of fixing base, it is connected with the pressure head still to slide in the frame, the pressure head is located the top of fixing base, the direction of sliding of pressure head is close to or keeps away from towards the fixing base setting, still be provided with the driving piece in the frame, the driving piece drive the pressure head removes.

Through adopting above-mentioned technical scheme, when the steel sheet need buckle, place the part that the steel sheet need buckle in the notch department in the groove of bending, the part that the steel sheet need buckle aligns with the pressure head, and control driving piece drive pressure head removes towards the direction that is close to the fixing base, makes the pressure head push the steel sheet of bending notch department and make the steel sheet embedding bending inslot realize buckle can, need not manual operation steel sheet of buckling for it is more convenient to buckle the steel sheet.

Optionally, the pressure head is close to the tip of fixing base is the toper setting, and its awl point is close to the fixing base setting.

Through adopting above-mentioned technical scheme, when control driving piece driving pressure head extrusion steel sheet, make the department of buckling of steel sheet change and form the edges and corners for it is more convenient to process the steel sheet and take shape.

Optionally, the pressing head includes a connecting portion disposed on the frame and an extruding portion disposed on the connecting portion, an installation groove is formed in an end surface of the connecting portion close to the extruding portion, the extruding portion is disposed close to the fixing seat, an insert block is disposed on an end surface of the extruding portion close to the connecting portion, and the insert block is embedded in the installation groove; the connecting portion is provided with a locking piece, and the locking piece is used for tightly abutting against the embedded block in the mounting groove to realize the positioning of the extrusion portion.

By adopting the technical scheme, the connecting part and the extrusion part are arranged, after the extrusion part extrudes and bends the steel plate for a long time, the conical tip of the extrusion part is easy to wear, so that the bending effect is influenced, after the extrusion part is worn, the locking part is taken down, the worn extrusion part is taken out from the mounting groove, the insert block on the new extrusion part is embedded into the mounting groove, the insert block in the mounting groove is abutted by the locking part, so that the extrusion part can be positioned, and the replacement of the extrusion part can be completed, and the extrusion part is more convenient to replace and mount; the whole pressure head does not need to be replaced, so that the pressure head is more durable.

Optionally, the cross section of the inserted block is trapezoidal, and the large end of the inserted block is close to the connecting part.

Through adopting above-mentioned technical scheme, strengthened the stability of extrusion portion with the connecting portion location, thereby reduced the condition that the extrusion portion dropped because of the retaining member pine takes off.

Optionally, a plurality of first supporting strips are hinged to the fixing seat, hinge axes of the plurality of first supporting strips are all arranged along the length direction of the pressure head, and hinge axes of the plurality of first supporting strips are all overlapped; the fixed seat is also hinged with a plurality of second supporting strips, hinge axes of the second supporting strips are arranged along the length direction of the pressure head, and the hinge axes of the second supporting strips are overlapped; the first supporting strips and the second supporting strips are respectively positioned on two opposite sides of the pressure head and are arranged in a staggered manner, the end parts, close to each other, of the first supporting strips and the adjacent second supporting strips are intersected and hinged, and the bending grooves are formed by splicing a plurality of first supporting strips and a plurality of second supporting strips; the fixing seat is further provided with an adjusting piece, and the adjusting piece is used for adjusting the size of an included angle formed between the first supporting strip and the adjacent second supporting strip.

Through adopting above-mentioned technical scheme, can be according to the different needs of the angle of buckling of different steel sheets, adjust the size of the contained angle that forms between first supporting strip and the adjacent second supporting strip through the regulating part for the angle of buckling that the pressure head extrusion steel sheet formed when bending the inslot is different, improved the holistic suitability of steel sheet crimping device.

Optionally, the first support bar is provided with a first long-strip hole, and the length direction of the first long-strip hole is arranged along the length direction corresponding to the first support bar; the second support bar is provided with a second strip hole, and the length direction of the second strip hole is arranged along the length direction corresponding to the second support bar; the first strip holes in the first support strips are all arranged in an aligned mode, the second strip holes in the second support strips are all arranged in an aligned mode, the adjusting piece comprises an adjusting block and a hinge rod, the adjusting block is connected to the fixing seat in a sliding mode, the sliding direction of the adjusting block is towards the direction close to or away from the bending groove, the hinge rod is fixedly connected with the adjusting block, the hinge rod penetrates through the first strip holes and the second strip holes, and the first support strips and the second support strips are hinged through the cooperation of the hinge rod, the first strip holes and the second strip holes; the fixing seat is further provided with a fixing piece used for fixing the adjusting block.

Through adopting above-mentioned technical scheme, when requiring different steel sheets to buckle the angle, with the regulating block towards the direction removal near or far away from the groove of buckling, the regulating part drives the hinge bar and removes, the hinge bar drives first support strip and second support strip and removes the size that makes the contained angle that forms between first support strip and the second support strip and change and accord with the needs that the angle was buckled to the steel sheet, the size of the contained angle that forms between first support strip and the second support strip and the angle adaptation of buckling of work piece, the fixed of control locking piece realization regulating block can buckle the work piece, it is more convenient to make the contained angle size of adjusting formation between first support strip and the second support strip big or small.

Optionally, a sliding groove is formed in the fixed seat, the length direction of the sliding groove is arranged along the sliding direction of the adjusting block, the hinge rod penetrates through the sliding groove, and the adjusting block is connected to the fixed seat in a sliding manner through the matching of the hinge rod and the sliding groove; the hinged rod comprises a hinged portion and a sliding portion, the length direction of the hinged portion is parallel to the length direction of the pressure head, the sliding portion is located at one end of the hinged portion in the length direction, the sliding portion is located in the sliding groove, and the outer side wall of the sliding groove in the length direction is attached to the corresponding inner side wall of the sliding groove.

Through adopting above-mentioned technical scheme, when the regulating block drove the hinge bar and slided in the spout, the portion of sliding contradicts the corresponding inside wall setting of spout along spout length direction's lateral wall to reduced the hinge bar and removed the in-process and taken place the pivoted condition, made the operation regulating block drive the hinge bar and adjusted the contained angle size that forms between first support bar and the second support bar more convenient.

Optionally, the fixing element includes a gear rotatably connected to the fixing seat and a driving machine disposed on the fixing seat, the gear is located on one side of the adjusting block along the sliding direction of the adjusting block, a rotation axis of the gear is parallel to the length direction of the pressure head, and the driving machine drives the gear to rotate; the adjusting block is provided with a tooth part meshed with the gear, the tooth part is close to the gear, and the gear drives the adjusting block to slide through matching with the tooth part.

Through adopting above-mentioned technical scheme, when requiring different steel sheets to buckle the angle, control driving machine drive gear rotates, the gear drives the adjusting block through the cooperation with tooth portion and removes, the adjusting block drives the hinge bar and removes, the hinge bar drives first supporting strip and second support bar and removes the size that makes the contained angle that forms between first supporting strip and the second support bar and change and accord with the needs that the angle was buckled to the steel sheet, need not the manual movement regulating part, make the contained angle size of adjusting formation between first supporting strip and the second support bar more convenient.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the steel plate can be bent by controlling the pressure head to extrude the steel plate so that the steel plate is embedded into the bending groove without manually operating the bending groove, so that the steel plate is more convenient to bend;

2. the first supporting strips, the second supporting strips and the adjusting pieces are arranged, and the adjusting pieces are controlled to adjust the included angle formed between the first supporting strips and the adjacent second supporting strips, so that the bending angles formed when the pressure head extrudes the steel plate in the bending groove are different, and the overall applicability of the steel plate edge bending device is improved;

3. through setting up gear and tooth portion, control gear rotates and drives the regulating part and remove, and the regulating part drives the hinge rod and removes the size that makes the contained angle that forms between first support bar and the second support bar and change and accord with the needs that the steel sheet was buckled the angle, need not manual removal regulating part for it is more convenient to adjust the contained angle size that forms between first support bar and the second support bar.

Drawings

FIG. 1 is an overall view of the present embodiment;

FIG. 2 is a partial exploded view of the present embodiment;

fig. 3 is a partial structural schematic view of the present embodiment, mainly showing the structures of the first supporting bar and the second supporting bar;

fig. 4 is a structural view of the embodiment cut away at the fixing base, mainly showing the structure of the hinge rod;

fig. 5 is a partial structural schematic view of the present embodiment, mainly showing the structure of the fixing member.

Description of reference numerals: 1. a frame; 2. a pressure head; 21. a connecting portion; 211. mounting grooves; 22. a pressing section; 221. an insert block; 3. a fixed seat; 31. accommodating grooves; 32. a chute; 4. a locking member; 5. a drive member; 6. a first support bar; 61. a first elongated hole; 7. a second supporting strip; 71. a second elongated hole; 8. a hinged lever; 81. a hinge portion; 82. a sliding part; 9. bending the groove; 10. a gear; 11. a driver; 12. an adjustment member; 13. an adjusting block; 131. a tooth portion; 14. and a fixing member.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses steel sheet crimping device. Referring to fig. 1, steel sheet crimping device includes frame 1, is provided with pressure head 2 and fixing base 3 in the frame 1, and pressure head 2 is located the top of fixing base 3, and pressure head 2 is the level setting. The tip that pressure head 2 is close to fixing base 3 is the toper setting, and its awl point is close to fixing base 3 setting.

Referring to fig. 1 and 2, the pressing head 2 includes a connection portion 21 and a pressing portion 22, and the pressing portion 22 is disposed adjacent to the holder 3. Connecting portion 21 slides and connects in frame 1, and the direction of sliding of connecting portion 21 is towards being close to or keeping away from fixing base 3 and setting up, has seted up mounting groove 211 on the terminal surface that connecting portion 21 is close to extrusion portion 22, and the length direction of mounting groove 211 sets up along the length direction of connecting portion 21, and the one end through connection portion 21 setting of its length direction is followed to mounting groove 211. The connecting portion 21 is provided with a locking member 4, in this embodiment, the locking member 4 is a locking bolt, and the locking member 4 is in threaded connection with the connecting portion 21.

Referring to fig. 2, an insert 221 is fixed on an end surface of the pressing portion 22 close to the connecting portion 21, a length direction of the insert 221 is arranged along a length direction of the mounting groove 211, a cross section of the insert 221 is trapezoidal, and a large end of the insert 221 is arranged close to the connecting portion 21. In actual use, the insert 221 is integrally provided with the pressing portion 22.

Referring to fig. 2, when the pressing portion 22 is installed, the insert 221 is slidably inserted from one end of the installation groove 211 penetrating through the connection portion 21 until the insert 221 abuts against the inner wall of the other end of the installation groove 211, the locking member 4 is screwed, so that the end portion of the locking member 4 close to the installation groove 211 abuts against the outer side wall of the insert 221, and the insert 221 abuts against the installation groove 211 to achieve the positioning of the pressing portion 22 on the connection portion 21.

Referring to fig. 2, a driving member 5 is further fixed on the frame 1, the driving member 5 is located above the connecting portion 21, in this embodiment, the driving member 5 is a motor, an output shaft of the driving member 5 is fixedly connected to the connecting portion 21, and the driving member 5 drives the connecting portion 21 to move.

Referring to fig. 1 and 3, the fixing base 3 is fixed on the frame 1, and an accommodating groove 31 is formed in the upper end surface of the fixing base 3. The up end of fixing base 3 articulates there are a plurality of first stay strips 6, and a plurality of first stay strips 6 distribute along the length direction of pressure head 2, and the articulated axis of a plurality of first stay strips 6 all sets up along the length direction of pressure head 2, and the articulated axis of a plurality of first stay strips 6 all coincides the setting, and a plurality of first stay strips 6 all are located fixing base 3 along 2 length direction's of pressure head one side.

Referring to fig. 3, each first supporting strip 6 is provided with a first elongated hole 61, the length direction of the first elongated hole 61 is arranged along the length direction corresponding to the first supporting strip 6, and the first elongated hole 61 is arranged away from the hinge axis corresponding to the first supporting strip 6. The first elongated holes 61 of the first support bars 6 are aligned.

Referring to fig. 1 and 3, the up end of fixing base 3 still articulates there are a plurality of second support bars 7, and a plurality of second support bars 7 distribute along the length direction of pressure head 2, and the articulated axis of a plurality of second support bars 7 all sets up along the length direction of pressure head 2, and the articulated axis of a plurality of second support bars 7 all coincides the setting, and a plurality of second support bars 7 all are located fixing base 3 and the relative one side of first support bar 6.

Referring to fig. 3, each second support bar 7 has a second elongated hole 71 formed therein, the length direction of the second elongated hole 71 is along the length direction corresponding to the second support bar 7, and the second elongated hole 71 is far away from the hinge axis corresponding to the second support bar 7. The second elongated holes 71 of the plurality of second supporting bars 7 are aligned.

Referring to fig. 3, a plurality of first supporting strips 6 and a plurality of second supporting strips 7 are arranged in a staggered manner, and the end portions, close to each other, of each first supporting strip 6 and the end portions, close to each other, of the adjacent second supporting strips 7 are intersected and hinged. The first elongated holes 61 and the second elongated holes 71 are arranged in an intersecting manner. A plurality of first support bars 6 and a plurality of second support bar 7 splice and are formed with bending groove 9, and bending groove 9's length direction sets up along the length direction of pressure head 2.

Referring to fig. 3, two chutes 32 have been seted up on the lateral wall of fixing base 3, and two chutes 32 all communicate with holding tank 31, and two chutes 32 are located fixing base 3 along 2 length direction's of pressure head relative both ends respectively, and two chutes 32 all are vertical setting, and two chutes 32 align to set up.

Referring to fig. 4 and 5, still be provided with regulating part 12 on the fixing base 3, regulating part 12 includes two regulating blocks 13 and hinge bar 8, and two regulating blocks 13 are located fixing base 3 respectively along 2 length direction's of pressure head relative both ends, and two regulating blocks 13 are located one side that two spout 32 kept away from each other respectively, and the terminal surface that two regulating blocks 13 are close to each other all contradicts the corresponding lateral wall setting of fixing base 3. Two regulating blocks 13 all slide and connect on fixing base 3, and the direction of sliding of two regulating blocks 13 all sets up towards being close to or keeping away from bending groove 9.

Referring to fig. 4 and 5, each adjusting block 13 is fixed with a tooth portion 131, the two tooth portions 131 are located on the same side of the two adjusting blocks 13, and the two tooth portions 131 are vertically arranged.

Referring to fig. 4, the hinge rod 8 is disposed through the two sliding grooves 32 on the fixing base 3, the hinge rod 8 includes a hinge portion 81 and two sliding portions 82, in this embodiment, the hinge portion 81 is a round rod, a length direction of the hinge portion 81 is parallel to a length direction of the pressing head 2, the hinge portion 81 is disposed through the first elongated holes 61 and the second elongated holes 71, and outer sidewalls of the hinge portion 81 respectively abut against two opposite sidewalls of the first elongated holes 61 and two opposite sidewalls of the second elongated holes 71. The first support bar 6 and the adjacent second support bar 7 are hinged by the cooperation of the hinge 81 and the first and second

elongated holes

61 and 71.

Referring to fig. 4, the two sliding portions 82 are respectively located at two opposite ends of the hinge portion 81 along the length direction thereof, and both the two sliding portions 82 are fixedly connected with the corresponding end portions of the hinge portion 81. Every portion 82 that slides all is located corresponding spout 32, and in this embodiment, the portion 82 that slides is the rectangular block, and the portion 82 that slides all laminates and contradicts the corresponding inside wall setting of spout 32 along two relative lateral walls that correspond spout 32 length direction.

Referring to fig. 1 and 4, an end surface of one of the sliding portions 82 far away from the hinge portion 81 is fixedly connected with the corresponding adjusting block 13, and an end surface of the other sliding portion 82 far away from the hinge portion 81 is fixedly connected with the other adjusting block 13. Two regulating blocks 13 are connected on the fixing base 3 in a sliding manner through the matching of the hinge rod 8 and the two sliding grooves 32.

Referring to fig. 4, the plurality of first support bars 6, the plurality of second support bars 7, and the hinge lever 8 are positioned in the receiving groove 31.

Referring to fig. 1 and 5, still be provided with mounting 14 on the fixing base 3, mounting 14 includes two gears 10 and driving machine 11, and two gears 10 are located fixing base 3 respectively along 2 length direction's of pressure head relative both ends, and two gears 10 all are located the outside setting of fixing base 3, and the terminal surface that two gears 10 are close to each other all contradicts the corresponding lateral wall setting of fixing base 3. One of the gears 10 is located on one side of the adjacent adjusting block 13 in the sliding direction thereof, and the other gear 10 is located on the same side of the other adjusting block 13. Two gears 10 are respectively close to and correspond the setting of tooth portion 121 on the regulating block 13, and two gears 10 align the setting, and two gears 10 all mesh with tooth portion 121 on the regulating block 13 that corresponds. Two gears 10 all rotate to be connected on fixing base 3, and the axis of rotation of two gears 10 all is on a parallel with the length direction of pressure head 2 and the coincidence sets up.

Referring to fig. 1 and 5, the driving machine 11 is located on one side of one of the gears 10 away from the fixed base 3, and an output shaft of the driving machine 11 penetrates through the two gears 10 and is fixedly connected with the two gears 10, in this embodiment, the driving machine 11 is a braking motor, and the driving machine 11 drives the two gears 10 to rotate simultaneously.

Referring to fig. 5, the driving machine 11 is controlled to drive the two gears 10 to rotate, the two gears 10 drive the corresponding adjusting parts 12 to move through matching with the corresponding tooth parts 121, the adjusting parts 12 move to drive the hinge rods 8 to move, and the hinge rods 8 drive the first supporting bars 6 and the second supporting bars 7 to move so that the size of the included angle formed between the first supporting bars 6 and the second supporting bars 7 is changed. When the driving machine 11 has a power failure, the driving machine 11 is locked to stop the rotation of the output shaft of the driving machine 11, so that the fixing of the adjusting block 13 is realized.

The embodiment of the application is suitable for the steel plate with the thickness less than or equal to 2 mm.

The implementation principle of the steel plate edge bending device in the embodiment of the application is as follows:

when the steel sheet need buckle, place the part that the steel sheet need buckle in the notch department of bending groove 9, the part that the steel sheet need buckle aligns with

pressure head

2, and 5 driving pressure heads of control driving piece 2 remove towards the direction that is close to fixing base 3, make pressure head 2 push the steel sheet of bending groove 9 notch department and make the steel sheet embedding bending groove 9 in can accomplish the steel sheet of buckling, need not manual operation bending steel sheet for it is more convenient to buckle the steel sheet.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The steel plate edge bending device is characterized in that: including frame (1), be provided with fixing base (3) on frame (1), bending groove (9) that supply the work piece to place are seted up to the up end of fixing base (3), it is connected with pressure head (2) still to slide on frame (1), pressure head (2) are located bending groove's (9) top, the direction of sliding of pressure head (2) is close to or keeps away from fixing base (3) set up, still be provided with driving piece (5) on frame (1), driving piece (5) drive pressure head (2) remove.

2. The steel plate hemming device according to claim 1 wherein: the pressure head (2) is close to the end part of the fixing seat (3) is in a conical shape, and the conical tip of the pressure head is close to the fixing seat (3).

3. The steel plate hemming device according to claim 2 wherein: the pressing head (2) comprises a connecting part (21) arranged on the rack (1) and an extrusion part (22) arranged on the connecting part (21), an installation groove (211) is formed in the end face, close to the extrusion part (22), of the connecting part (21), the extrusion part (22) is arranged close to the fixed seat (3), an embedded block (221) is arranged on the end face, close to the connecting part (21), of the extrusion part (22), and the embedded block (221) is embedded into the installation groove (211);

be provided with retaining member (4) on connecting portion (21), retaining member (4) will abaculus (221) support tightly in realize in mounting groove (211) the location of extrusion portion (22).

4. The steel plate hemming device according to claim 3 wherein: the cross section of the embedded block (221) is trapezoidal, and the large end of the embedded block (221) is close to the connecting portion (21).

5. The steel plate hemming device according to claim 1 wherein: a plurality of first supporting strips (6) are hinged to the fixing seat (3), hinge axes of the first supporting strips (6) are arranged along the length direction of the pressure head (2), and hinge axes of the first supporting strips (6) are overlapped;

a plurality of second supporting strips (7) are hinged to the fixing seat (3), hinge axes of the second supporting strips (7) are arranged along the length direction of the pressure head (2), and hinge axes of the second supporting strips (7) are overlapped;

the first supporting strips (6) and the second supporting strips (7) are respectively positioned at two opposite sides of the pressure head (2), the first supporting strips (6) and the second supporting strips (7) are arranged in a staggered mode, the end portions, close to each other, of the first supporting strips (6) and the adjacent second supporting strips (7) are intersected and hinged, and the bending grooves (9) are formed by splicing a plurality of first supporting strips (6) and a plurality of second supporting strips (7);

still be provided with adjusting part (12) on fixing base (3), adjusting part (12) are used for adjusting first support bar (6) and adjacent the size of the contained angle that forms between second support bar (7).

6. The steel plate hemming device of claim 5 wherein: the first supporting strip (6) is provided with a first long-strip hole (61), and the length direction of the first long-strip hole (61) is arranged along the length direction corresponding to the first supporting strip (6);

a second strip hole (71) is formed in the second supporting strip (7), and the length direction of the second strip hole (71) is arranged along the length direction corresponding to the second supporting strip (7);

the first strip holes (61) on the plurality of first supporting strips (6) are all arranged in an aligned manner, the second strip holes (71) on the plurality of second supporting strips (7) are all arranged in an aligned manner,

the adjusting piece (12) comprises an adjusting block (13) and a hinged rod (8) which are connected to the fixing seat (3) in a sliding mode, the sliding direction of the adjusting block (13) is close to or far away from the bending groove (9) and is arranged, the hinged rod (8) is fixedly connected with the adjusting block (13), the hinged rod (8) penetrates through the first strip holes (61) and the second strip holes (71) and is provided with a plurality of first strip holes (61), and the first supporting strip (6) and the second supporting strip (7) are hinged through the matching of the hinged rod (8) and the first strip holes (61) and the second strip holes (71);

the fixing seat (3) is also provided with a fixing part (14) for fixing the adjusting block (13).

7. The steel plate hemming device of claim 6 wherein: a sliding groove (32) is formed in the fixed seat (3), the length direction of the sliding groove (32) is arranged along the sliding direction of the adjusting block (13), the hinge rod (8) penetrates through the sliding groove (32), and the adjusting block (13) is connected to the fixed seat (3) in a sliding manner through the matching of the hinge rod (8) and the sliding groove (32);

the hinged rod (8) comprises a hinged portion (81) and a sliding portion (82), the length direction of the hinged portion (81) is parallel to the length direction of the pressure head (2), the sliding portion (82) is located at one end of the hinged portion (81) along the length direction of the hinged portion, the sliding portion (82) is located in the sliding groove (32), and the outer side wall of the sliding portion (82) along the length direction of the sliding groove (32) is attached to the corresponding inner side wall of the sliding groove (32).

8. The steel plate hemming device of claim 6 wherein: the fixing piece (14) comprises a gear (10) rotationally connected to the fixing seat (3) and a driving machine (11) arranged on the fixing seat (3), the gear (10) is located on one side of the adjusting block (13) along the sliding direction of the adjusting block, the rotating axis of the gear (10) is arranged in parallel to the length direction of the pressure head (2), and the driving machine (11) drives the gear (10) to rotate;

the adjusting block (13) is provided with a tooth part (121) meshed with the gear (10), the tooth part (121) is arranged close to the gear (10), and the gear (10) drives the adjusting block (13) to slide through the matching of the tooth part (121).