CN115194239A - Hydraulic plate shearing device for production of assembled steel structure - Google Patents

Abstract

The invention relates to a hydraulic plate shearing device, in particular to a hydraulic plate shearing device for production of an assembled steel structure. The hydraulic plate shearing device for the assembly type steel structure production is convenient for limiting the steel plate and has good quality of the hydraulic shear of the steel plate. The invention provides a hydraulic plate shearing device for production of an assembled steel structure, which comprises an underframe, a bracket, a workbench, a cylinder, a blade and the like; the top of the underframe is connected with a support, the lower part of the support is connected with a workbench, two cylinders are installed on the upper part of the support, and a blade is connected between telescopic rods of the two cylinders. The staff starts two cylinders for the telescopic link of cylinder drives the blade downstream and carries out the hydraulic pressure to cut the processing to the steel sheet, and is spacing to the steel sheet through spacing and the cooperation of first fixed block, makes the steel sheet be difficult for shifting at the in-process that the hydraulic pressure was cut and is handled, and then can improve the quality that the hydraulic pressure of steel sheet was cut.

Description

Hydraulic plate shearing device for production of assembled steel structure

Technical Field

The invention relates to a hydraulic plate shearing device, in particular to a hydraulic plate shearing device for production of an assembled steel structure.

Background

The assembled steel structure is the frame that splices into through a plurality of steel, and the steel of steel construction is the steel structure that the concatenation formed through the steel sheet is buckled, makes things convenient for the use of building, because it is into to buckle the steel sheet, and inside belongs to cavity, has the effect of weight reduction, and the steel construction needs carry out the hydraulic pressure to the steel sheet and cuts the processing in process of production.

Patent grant publication number is CN 210702806U's patent, a hydraulic brake formula plate shearing device is used in production of assembled steel structure, comprises a workbench, the top of workstation is equipped with the roof, the bottom fixed mounting of roof has the pneumatic cylinder, fixed mounting has the cutter on the output shaft of pneumatic cylinder, the top fixed mounting of workstation has the cutting bed, the slope has been seted up to one side of cutting bed, the spread groove has been seted up on the slope, it has the articulated slab to articulate in the spread groove, one side fixed mounting of articulated slab has the connecting plate, the arc hole has been seted up on the slope. This patent passes through pneumatic cylinder drive cutter downstream, though can carry out the hydraulic pressure to the steel sheet and cut the processing, but when the cutter carries out the hydraulic pressure to the steel sheet and cuts the processing, this patent is not convenient for carry on spacingly to the steel sheet for the displacement takes place easily at the in-process that the processing was cut to the hydraulic pressure to the steel sheet, thereby influences the quality that the hydraulic pressure of steel sheet was cut.

Therefore, the hydraulic plate shearing device for the assembly type steel structure production, which is convenient for limiting the steel plate and has better quality for hydraulic shearing of the steel plate, needs to be designed.

Disclosure of Invention

In order to overcome prior art and be not convenient for carry on spacingly to the steel sheet for the steel sheet is in the shortcoming that the displacement takes place easily at the in-process that the hydraulic pressure was cut and is handled, and the technical problem that solves is: the hydraulic plate shearing device for the assembly type steel structure production is convenient for limiting a steel plate and has better steel plate hydraulic shear quality.

The technical scheme of the invention is as follows: the utility model provides an assembled steel construction production hydraulic pressure plate shearing device, is including chassis, support, workstation, cylinder, blade, stop gear and positioning mechanism, and the chassis top is connected with the support, and the support sub-unit connection has the workstation, and two cylinders are installed on support upper portion, are connected with the blade between the telescopic link of two cylinders, and the workstation bottom is equipped with and is used for carrying out spacing stop gear to the steel sheet, is equipped with on the support to be used for assisting stop gear to carry out spacing positioning mechanism to the steel sheet.

In one embodiment, the limiting mechanism comprises a first fixing frame, a sliding plate, a limiting frame and a first elastic member, the first fixing frame is connected to the bottom of the workbench, the sliding plate is slidably connected to the first fixing frame, the limiting frame is slidably connected to the sliding plate, the limiting frame is used for limiting the position of the steel plate, the limiting frame is slidably connected to the workbench, two first elastic members are sleeved on the lower portion of the first fixing frame, and two ends of each first elastic member are respectively connected to the first fixing frame and the sliding plate.

In one embodiment, the positioning mechanism comprises a connecting plate, a second fixing frame and a second elastic member, the connecting plate is connected to the upper portion of the bracket, the second fixing frame is slidably connected to the connecting plate, the two second elastic members are sleeved on the upper portion of the second fixing frame, and two ends of each second elastic member are respectively connected to the second fixing frame and the bracket.

In one embodiment, the steel plate separating device further comprises a separating mechanism for separating the steel plates, wherein the separating mechanism comprises a fixing frame, a third elastic element, a first placing plate, a sliding rod, a sliding frame, a sliding rail and a second placing plate, the fixing frame is connected to the front side of the underframe, two sliding grooves are formed in the fixing frame, the first placing plate is connected to the fixing frame in a sliding mode, two third elastic elements are connected between the first placing plate and the fixing frame, the sliding rod is connected to the two sliding grooves in a sliding mode, the sliding rod is in contact with the first placing plate, the sliding rail is connected to the front portion of the underframe, the sliding rail is located on the upper side of the fixing frame, the second placing plate is connected to the sliding rail in a sliding mode, the two sliding frames are connected to the second placing plate in a sliding mode, and the two sliding frames are both connected to the sliding rod and the sliding rail in a sliding mode.

In one embodiment, the blade fixing device further comprises a pressing mechanism for pressing the second fixing frame downwards, the pressing mechanism comprises a first connecting rod, a contact plate and a fourth elastic element, the top of the blade is connected with the first connecting rod, the contact plate is connected onto the first connecting rod in a sliding mode, the contact plate can move downwards to be in contact with the second fixing frame, and the fourth elastic element is connected between the contact plate and the first connecting rod.

In one embodiment, the device further comprises a descending mechanism used for moving the sliding plate downwards, the descending mechanism comprises a second fixed block, first contact frames, sliding blocks, contact rods, a fifth elastic element, a second connecting rod and a second contact frame, the two second fixed blocks are connected to the upper portion of the bottom frame, the two first contact frames are connected to the upper portion of the bottom frame in a sliding mode, the front sides of the two first contact frames are flat surfaces, the first contact frames are located on the front sides of the second fixed blocks, the sliding blocks are connected to the two first contact frames, the two sliding blocks are connected to the support in a sliding mode, the two contact rods are connected to the blade in a sliding mode, the two contact rods are respectively connected to the adjacent first contact frames in a sliding mode, the fifth elastic element is connected between the two first contact frames and the adjacent second fixed blocks, the second connecting rod is connected to the two first contact frames, and the second contact frame is connected to the sliding plate in a sliding mode.

In one embodiment, the adjusting mechanism is used for adjusting the processing length of the steel plate hydraulic shear and comprises a third fixing block, a limiting block, a screw rod and a knob, the third fixing block is connected to the bottom of the sliding plate, the limiting block is connected to the bottom of the limiting frame, the screw rod is connected to the limiting block in a threaded mode, the rear side of the screw rod is rotatably connected with the third fixing block, and the knob is connected to the front side of the screw rod.

In one embodiment, the steel plate fixing device further comprises a first fixing block, two first fixing blocks are connected to the lower portion of the second fixing frame, and the first fixing blocks are used for limiting the steel plate.

The beneficial effects are that: 1. the staff starts two cylinders for the telescopic link of cylinder drives the blade downstream and carries out the hydraulic pressure to cut the processing to the steel sheet, and is spacing to the steel sheet through spacing and the cooperation of first fixed block, makes the steel sheet be difficult for shifting at the in-process that the hydraulic pressure was cut and is handled, and then can improve the quality that the hydraulic pressure of steel sheet was cut.

2. The steel sheet that the board was cut to the hydraulic pressure through first board and the second of placing is separated, can prevent that two steel sheets from bumping and leading to damaging to influence the quality of steel sheet.

3. The second fixing frame and the contact plate are convenient for the first fixing block to move downwards to limit the steel plate, so that the labor intensity of workers is reduced.

4. The position of the limiting frame is convenient to adjust by rotating the knob and the screw rod forwards and backwards, and the steel plate hydraulic shear can be processed into different lengths conveniently by the blade.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a partial perspective view of the present invention.

Fig. 3 is a schematic perspective view of the limiting mechanism of the present invention.

Fig. 4 is a schematic perspective view of the positioning mechanism of the present invention.

Fig. 5 is a schematic view of a first partially-separated body structure of the separation mechanism of the present invention.

FIG. 6 is a schematic view of a second partial body structure of the partition mechanism of the present invention.

Fig. 7 is a schematic perspective view of the pressing mechanism of the present invention.

Fig. 8 is a schematic perspective view of the descending mechanism of the present invention.

Fig. 9 is a schematic perspective view of the adjusting mechanism of the present invention.

In the reference symbols: 1-chassis, 2-bracket, 3-workbench, 4-cylinder, 5-blade, 6-spacing mechanism, 61-first fixed mount, 62-sliding plate, 63-spacing frame, 64-first elastic element, 7-positioning mechanism, 71-connecting plate, 72-second fixed mount, 73-first fixed block, 74-second elastic element, 8-separating mechanism, 81-fixed frame, 82-sliding slot, 83-third elastic element, 84-first placing plate, 85-sliding rod, 86-sliding rack, 87-sliding track, 88-second placing plate, 9-pressing mechanism, 91-first connecting rod, 92-contacting plate, 93-fourth elastic element, 10-lowering mechanism, 101-second fixed block, 102-first contact frame, 103-sliding block, 104-contacting rod, 105-fifth elastic element, 106-second connecting rod, 107-second contact frame, 11-adjusting mechanism, 111-third fixed block, 112-limiting block, 113-screw, 114-knob.

Detailed Description

The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for completeness and fully convey the scope of the invention to the skilled person.

Example 1

As shown in fig. 1-4, an assembly type steel structure production hydraulic plate shearing device comprises an underframe 1, a support 2, a workbench 3, cylinders 4, blades 5, a limiting mechanism 6 and a positioning mechanism 7, wherein the support 2 is connected to the top of the underframe 1, the workbench 3 is fixedly connected to the lower portion of the support 2 through bolts, the cylinders 4 are mounted on the left side and the right side of the upper portion of the support 2 through bolts, the blades 5 are fixedly connected between telescopic rods of the two cylinders 4 through bolts, the limiting mechanism 6 is arranged at the bottom of the workbench 3, and the positioning mechanism 7 is arranged on the support 2.

As shown in fig. 1 and 3, the limiting mechanism 6 includes a first fixing frame 61, a sliding plate 62, a limiting frame 63 and a first elastic member 64, the first fixing frame 61 is welded at the middle position of the bottom of the workbench 3, the sliding plate 62 is connected to the first fixing frame 61 in a sliding manner, the limiting frame 63 is connected to the sliding plate 62 in a sliding manner, the limiting frame 63 is used for limiting the steel plate, the limiting frame 63 is connected to the workbench 3 in a sliding manner, the first elastic member 64 is sleeved on each of the left side and the right side of the lower portion of the first fixing frame 61, the first elastic member 64 is a compression spring, and two ends of the first elastic member 64 are respectively connected to the first fixing frame 61 and the sliding plate 62.

As shown in fig. 1 and 4, the positioning mechanism 7 includes a connecting plate 71, a second fixing frame 72, a first fixing block 73 and a second elastic member 74, the connecting plate 71 is fixedly connected between the left side and the right side of the upper portion of the support 2 through bolts, the second fixing frame 72 is slidably connected between the left side and the right side of the connecting plate 71, the first fixing block 73 is welded on the left side and the right side of the lower portion of the second fixing frame 72, the first fixing block 73 is used for limiting the steel plate, the second elastic member 74 is sleeved on the left side and the right side of the upper portion of the second fixing frame 72, the second elastic member 74 is a compression spring, and two ends of the second elastic member 74 are respectively connected with the second fixing frame 72 and the support 2.

When the working personnel need to carry out hydraulic pressure shearing processing on the steel plate, the sliding plate 62 and the limiting frame 63 can be pulled downwards, the first elastic part 64 is compressed, then the steel plate is placed on the operating platform, then the sliding plate 62 is loosened, the first elastic part 64 drives the sliding plate 62 and the limiting frame 63 to move upwards and reset, after the limiting frame 63 resets, the steel plate can be pushed forwards, the steel plate is contacted with the limiting frame 63, then the second fixing frame 72 and the first fixing frame 73 are pressed downwards, the second elastic part 74 is compressed, the first fixing frame 73 moves downwards and is contacted with the steel plate, the first fixing frame 73 is matched with the limiting frame 63 to limit the steel plate, then the two cylinders 4 are started, the telescopic rods of the cylinders 4 drive the blades 5 to move downwards to carry out hydraulic pressure shearing processing on the steel plate, after the blades 5 complete the hydraulic pressure shearing processing on the steel plate, two steel plates can be obtained, then the telescopic rods of the cylinders 4 are controlled to move upwards and reset, then the cylinders 4 are closed again, after the hydraulic pressure shearing processing on the steel plate is completed, the steel plate can be taken out, so the steel plate can be not easily matched with the limiting frame 73, and the quality of the steel plate can be improved in the hydraulic pressure shearing processing process.

Example 2

As shown in fig. 1, 5 and 6, based on embodiment 1, the present invention further includes a separating mechanism 8, the separating mechanism 8 includes a fixing frame 81, a third elastic member 83, a first placing plate 84, a sliding rod 85, a sliding frame 86, a sliding rail 87 and a second placing plate 88, the fixing frame 81 is fixedly connected to the front side of the bottom frame 1 through a bolt, sliding grooves 82 are formed on both left and right sides of the fixing frame 81, the first placing plate 84 is slidably connected to the fixing frame 81, two third elastic members 83 are connected between the first placing plate 84 and the bottom portion of the fixing frame 81, the third elastic member 83 is a compression spring, the sliding rod 85 is slidably connected between the two sliding grooves 82, the sliding rod 85 contacts the first placing plate 84, the sliding rail 87 is fixedly connected to the upper side of the front portion of the bottom frame 1 through a bolt, the second placing plate 88 is connected between the left and right sides of the sliding rail 87, the sliding frame 86 is connected to both left and right sides of the second placing plate 88, and the sliding frame 86 are connected to the sliding frame 85 and the sliding rail 87.

After the hydraulic shearing of the steel plate is completed, the steel plate can be pushed forward, so that the steel plate falls on the first placing plate 84, and further the third elastic member 83 is compressed, while the steel plate falls on the first placing plate 84, the first placing plate 84 moves downward to contact with the sliding rod 85, so that the sliding rod 85 slides downward in the chute 82, and contacts with the sliding frame 86 while the sliding rod 85 slides downward, so that the sliding rod 85 moves downward on the sliding frame 86, and while the sliding rod 85 moves backward, the second placing plate 88 is driven by the sliding frame 86 to move backward on the sliding rail 87, so that another steel plate subjected to hydraulic shearing falls on the second placing plate 88, thereby preventing the two steel plates from being damaged due to collision, when the steel plates fall on both the first placing plate 84 and the second placing plate 88, the steel plate on the first placing plate 84 can be taken out, the third elastic piece 83 drives the first placing plate 84 to move upwards, then the second placing plate 88 is pulled forwards, the second placing plate 88 drives the sliding rod 85 to move forwards through the sliding frame 86, the sliding rod 85 slides upwards on the sliding frame 86 when moving forwards, after the sliding rod 85 resets, the steel plate on the second placing plate 88 is taken out by a worker, the next time the steel plate falls into the first placing plate 84 conveniently, then the operation is repeated, the steel plate can be taken out again, and therefore the steel plate completed by the hydraulic shear is separated through the first placing plate 84 and the second placing plate 88, the two steel plates can be prevented from being collided to cause damage, and the quality of the steel plate is influenced.

As shown in fig. 1 and 7, the cutting blade further includes a pressing mechanism 9, the pressing mechanism 9 includes a first connecting rod 91, a contact plate 92 and a fourth elastic member 93, the first connecting rod 91 is fixedly connected to a middle position of the top of the cutting blade 5 through a bolt, the contact plate 92 is slidably connected to an upper portion of the first connecting rod 91, the contact plate 92 can move downward to contact with the second fixing frame 72, the fourth elastic member 93 is connected between the contact plate 92 and the upper portion of the first connecting rod 91, and the fourth elastic member 93 is a compression spring.

The contact plate 92 is driven to move downwards by the first connecting rod 91 while the blade 5 moves downwards, the second fixing frame 72 is enabled to move downwards in contact with the contact plate 92, the first fixing block 73 moves downwards to limit the steel plate, when the first fixing block 73 contacts with the steel plate, the second fixing frame 72 stops moving, therefore, the blade 5 moves downwards, the contact plate 92 slides upwards on the first connecting rod 91, the fourth elastic element 93 is compressed, when the blade 5 moves upwards, the contact plate 92 is driven by the fourth elastic element 93 to move upwards to reset, and when the contact plate 92 is separated from the second fixing frame 72, the second elastic element 74 drives the second fixing frame 72 and the first fixing block 73 to move upwards to reset, so that the first fixing block 73 moves downwards to limit the steel plate by the second fixing frame 72 and the contact plate 92, and labor intensity of workers is reduced.

As shown in fig. 1 and 8, the descending device 10 further includes a descending mechanism 10, the descending mechanism 10 includes a second fixed block 101, first contact frames 102, sliding blocks 103, contact rods 104, fifth elastic members 105, second connecting rods 106 and second contact frames 107, the second fixed block 101 is connected to both sides of the upper portion of the chassis 1, the first contact frames 102 are connected to both sides of the upper portion of the chassis 1 in a sliding manner, the front sides of the two first contact frames 102 are planes, the first contact frames 102 are located at the front sides of the second fixed blocks 101, the sliding blocks 103 are connected to both upper portions of the two first contact frames 102, the two sliding blocks 103 are connected to the support 2 in a sliding manner, the contact rods 104 are welded to both sides of the left and right of the blade 5, the two contact rods 104 are respectively connected to the first contact frames 102 in a sliding manner, the fifth elastic members 105 are connected between the two first contact frames 102 and the second fixed blocks 101, the fifth elastic members 105 are compression springs, the second connecting rods 106 are welded between the lower portions of the two first contact frames 102, the second connecting rods 106 are fixedly connected to the sliding plates 107 through bolts, and the sliding plates 107.

The contact rod 104 is driven while the blade 5 moves downwards, so that the first contact frame 102 and the contact rod 104 contact and move backwards, and further the fifth elastic element 105 is compressed, the second connecting rod 106, the second contact frame 107 and the sliding block 103 are driven while the first contact frame 102 moves backwards, so that the second contact frame 107 is separated from the sliding plate 62, when the contact rod 104 contacts with the plane of the first contact frame 102, the second connecting rod 106, the second contact frame 107 and the sliding block 103 stop moving backwards, therefore, the first elastic element 64 is in a compressed state initially, when the second contact frame 107 is separated from the sliding plate 62, the first elastic element 64 drives the sliding plate 62 and the limiting frame 63 to move upwards, so that the limiting frame 63 limits the steel plate, when the blade 5 moves upwards, the contact rod 104 is driven to move, when the contact rod 104 is separated from the plane of the first contact frame 102, the fifth elastic element 105 drives the first contact frame 102, the sliding block 103, the second connecting rod 106 and the second contact frame 107 to move forwards, so that the second contact frame 107 and the sliding plate 62 contact with the limiting frame 107, and the limiting frame 105 is moved forwards, so that the sliding plate 62 is conveniently, and the limiting frame 63 moves, and the second contact frame 107 moves downwards, so that when the contact frame 107 moves, the sliding plate 62 and the limiting frame 107 moves, the limiting frame 63 moves forwards, and the limiting frame 107 is convenient for the sliding plate 62, and the limiting frame 63 is convenient for the sliding plate 62, and the limiting frame 105 is convenient for the sliding plate 62.

As shown in fig. 1 and 9, the adjusting mechanism 11 is further included, the adjusting mechanism 11 includes a third fixing block 111, a limiting block 112, a screw 113 and a knob 114, the third fixing block 111 is welded at the bottom of the sliding plate 62, the limiting block 112 is welded at the front side of the bottom of the limiting frame 63, the screw 113 is connected to the limiting block 112 in a threaded manner, the rear side of the screw 113 is rotatably connected with the third fixing block 111, and the knob 114 is fixedly connected to the front side of the screw 113 through a bolt.

When the blade 5 needs to process the steel plate hydraulic shear with a short length, the knob 114 and the lead screw 113 can be rotated, so that the limiting block 112 drives the limiting frame 63 to move backwards, when the limiting frame 63 reaches a preset position, the knob 114 and the lead screw 113 can be stopped from rotating, so that the limiting frame 63 stops moving, when the blade 5 needs to process the steel plate hydraulic shear with a long length, the knob 114 and the lead screw 113 can be rotated reversely, so that the limiting block 112 drives the limiting frame 63 to move forwards, and when the limiting frame 63 reaches the preset position, the knob 114 and the lead screw 113 can be stopped from rotating reversely, so that the limiting frame 63 stops moving, and thus, the knob 114 and the lead screw 113 are rotated forwards and backwards, so that the position of the limiting frame 63 can be conveniently adjusted, and the blade 5 can conveniently process the steel plate hydraulic shear with different lengths.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (8)

1. The utility model provides an assembled steel construction production hydraulic pressure plate shearing device, including chassis (1), support (2), workstation (3), cylinder (4) and blade (5), chassis (1) top is connected with support (2), support (2) sub-unit connection has workstation (3), two cylinders (4) are installed on support (2) upper portion, be connected with blade (5) between the telescopic link of two cylinders (4), a serial communication port, still including stop gear (6) and positioning mechanism (7), workstation (3) bottom is equipped with and is used for carrying out spacing stop gear (6) to the steel sheet, be equipped with on support (2) and be used for assisting stop gear (6) to carry out spacing positioning mechanism (7) to the steel sheet.

2. The hydraulic plate shearing device for the assembled steel structure production according to claim 1, wherein the limiting mechanism (6) comprises a first fixing frame (61), a sliding plate (62), a limiting frame (63) and a first elastic member (64), the first fixing frame (61) is connected to the bottom of the workbench (3), the sliding plate (62) is connected to the first fixing frame (61) in a sliding manner, the limiting frame (63) is connected to the sliding plate (62) in a sliding manner, the limiting frame (63) is used for limiting the steel plate, the limiting frame (63) is connected to the workbench (3) in a sliding manner, the two first elastic members (64) are sleeved on the lower portion of the first fixing frame (61), and two ends of each first elastic member (64) are respectively connected to the first fixing frame (61) and the sliding plate (62).

3. The hydraulic plate shearing device for the production of the assembled steel structure according to claim 2, wherein the positioning mechanism (7) comprises a connecting plate (71), a second fixing frame (72) and a second elastic member (74), the connecting plate (71) is connected to the upper portion of the support (2), the second fixing frame (72) is slidably connected to the connecting plate (71), the two second elastic members (74) are sleeved on the upper portion of the second fixing frame (72), and two ends of the second elastic member (74) are respectively connected with the second fixing frame (72) and the support (2).

4. The hydraulic plate shearing device for the production of assembled steel structures according to claim 3, characterized by further comprising a separating mechanism (8) for separating the steel plates, wherein the separating mechanism (8) comprises a fixed frame (81), third elastic members (83), a first placing plate (84), sliding rods (85), a sliding frame (86), sliding rails (87) and a second placing plate (88), the fixed frame (81) is connected to the front side of the bottom frame (1), two sliding chutes (82) are formed in the fixed frame (81), the first placing plate (84) is connected to the fixed frame (81) in a sliding manner, the two third elastic members (83) are connected between the first placing plate (84) and the fixed frame (81), the sliding rods (85) are connected to the two sliding chutes (82) in a sliding manner, the sliding rods (85) are in contact with the first placing plate (84), the sliding rails (87) are connected to the front portion of the bottom frame (1), the sliding rails (87) are located on the upper side of the fixed frame (81), the sliding rails (87) are connected to the second placing plate (88) in a sliding manner, the two sliding frames (86) are connected to the sliding frame (86), and the sliding rails (85) are connected to the sliding frame (88).

5. The hydraulic plate shearing device for the assembled steel structure production according to claim 4, further comprising a pressing mechanism (9) for pressing the second fixing frame (72) downwards, wherein the pressing mechanism (9) comprises a first connecting rod (91), a contact plate (92) and a fourth elastic member (93), the first connecting rod (91) is connected to the top of the blade (5), the contact plate (92) is slidably connected to the first connecting rod (91), the contact plate (92) can be moved downwards to be in contact with the second fixing frame (72), and the fourth elastic member (93) is connected between the contact plate (92) and the first connecting rod (91).

6. An assembly type steel structure production hydraulic plate shearing device according to claim 5, characterized in that the device further comprises a descending mechanism (10) for moving the sliding plate (62) downwards, the descending mechanism (10) comprises a second fixed block (101), a first contact frame (102) and a sliding block (103), the contact rod (104), a fifth elastic part (105), a second connecting rod (106) and a second contact frame (107), wherein two second fixed blocks (101) are connected to the upper portion of the chassis (1), two first contact frames (102) are connected to the upper portion of the chassis (1) in a sliding mode, the front sides of the two first contact frames (102) are planes, the first contact frames (102) are located on the front sides of the second fixed blocks (101), sliding blocks (103) are connected to the two first contact frames (102), the two sliding blocks (103) are connected with the support (2) in a sliding mode, two contact rods (104) are connected to the blade (5) in a sliding mode, the two contact rods (104) are connected to the adjacent first contact frames (102) in a sliding mode, the fifth elastic part (105) is connected between the two first contact frames (102) and the adjacent second fixed blocks (101), the second connecting rod (106) is connected to the second connecting rod (106), and the second contact frame (107) is connected to the second contact frame (107) in a sliding mode, and the second contact frame (107) is connected to the sliding plates (62).

7. The hydraulic plate shearing device for production of the assembled steel structure according to claim 6, further comprising an adjusting mechanism (11) for adjusting the processing length of the hydraulic shear of the steel plate, wherein the adjusting mechanism (11) comprises a third fixing block (111), a limiting block (112), a screw rod (113) and a knob (114), the third fixing block (111) is connected to the bottom of the sliding plate (62), the limiting block (112) is connected to the bottom of the limiting frame (63), the screw rod (113) is connected to the limiting block (112) in a threaded manner, the rear side of the screw rod (113) is rotatably connected with the third fixing block (111), and the knob (114) is connected to the front side of the screw rod (113).

8. The assembly type steel structure production hydraulic plate shearing device as claimed in claim 7, further comprising a first fixing block (73), wherein two first fixing blocks (73) are connected to the lower portion of the second fixing frame (72), and the first fixing blocks (73) are used for limiting the steel plate.

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