Clamping device on hydraulic shearing machine and using method of clamping device

Abstract

The invention relates to the technical field of hydraulic shearing, and discloses a clamping device on a hydraulic shearing machine and a using method thereof.The clamping device comprises a supporting seat, a supporting plate is fixedly connected to the top of the supporting seat, and a hydraulic pump station is fixedly connected to the outer wall of the supporting seat. When a hydraulic pump station supplies oil to a press-fit oil cylinder through a second hydraulic pipe, an occlusion cutter rotates downwards, and when the occlusion cutter rotates downwards, the waste plate is made of regular blocky materials, so that the contact area between the waste plate and the occlusion cutter is small, when the waste plate is clamped, the position of the waste plate is moved, and the waste plate is clamped. When the waste plate moves, the waste plate is in contact with the recent limiting block which does not descend, so that the movement of the waste plate is limited, the movement of the waste plate is reduced when the occlusion cutter clamps the waste plate, and the situation that the waste plate cannot be clamped due to the movement of the waste plate, and then the subsequent shearing operation on the waste plate is affected is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic shearing equipment, in particular to a clamping device on a hydraulic shearing machine and a use method thereof. Background Art

[0002] As a common equipment for metal processing, hydraulic shearing machine is suitable for metal recycling plants, scrap car dismantling yards, smelting and casting industries. It is mainly used for cold shearing of various shapes of steel and various structures of metal to process them into qualified furnace materials. When the hydraulic shearing machine is performing shearing operations, the hydraulic pump station is used as the power output source to supply oil to the pressing cylinder, push the bite knife onto the knife seat, complete the pressing and fixing of the material, and then the hydraulic pump station supplies oil to the shearing cylinder to move the shearing knife head down to complete the shearing step.

[0003] When the hydraulic shearing machine shears the material, it will first press and fix the material through the bite knife, and then shear the material through the shear head. However, when the bite knife shears the block material, the contact area between the bite knife and the material is small, which may cause the material to shift when the bite knife rotates and presses, thereby affecting the clamping effect of the bite knife on the material. In response to the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a clamping device on a hydraulic shearing machine, comprising a support seat, a support plate is fixedly connected to the top of the support seat, and a hydraulic pump station is fixedly connected to the outer wall of the support seat;

[0005] A hydraulic shearing mechanism, the hydraulic shearing mechanism comprising a waste plate, a knife seat for shearing the waste plate, a shearing knife head, a shearing cylinder, a hydraulic pipe, and an anti-shifting mechanism for preventing the waste plate from shifting;

[0006] The outer wall of the knife seat is fixedly connected to the outer wall of the support seat, the outer wall of the shearing cutter head is rotatably connected to the inner wall of the support seat, the bottom of the shearing cylinder is fixedly connected to the top of the support seat, the outer wall of the shearing cylinder is rotatably connected to the inner wall of the shearing cutter head, the outer wall of the hydraulic pipe one is fixedly connected to the inner wall of the shearing cylinder, and the outer wall of the hydraulic pipe one is fixedly connected to the inner wall of the hydraulic pump station.

[0007] Preferably, the anti-displacement mechanism includes an interlocking knife rotatably connected to the inner wall of the support seat, the inner wall of the interlocking knife is rotatably connected to a pressing cylinder, the outer wall of the pressing cylinder is rotatably connected to the inner wall of the support plate, the inner wall of the pressing cylinder is fixedly connected to hydraulic pipe 2, the outer wall of hydraulic pipe 2 is fixedly connected to the inner wall of the hydraulic pump station, and the inner wall of the interlocking knife is slidably connected to a clamping assembly. When the hydraulic pump station supplies oil to the pressing cylinder through hydraulic pipe 2, the interlocking knife will rotate downward. When the interlocking knife rotates downward, since the waste plate is a regular block material, the contact area between the waste plate and the interlocking knife will be smaller.

[0008] Preferably, the anti-shift mechanism also includes a limit block slidably connected to the inner wall of the knife seat, the bottom of the limit block is fixedly connected to a support column, the bottom of the limit block is fixedly connected to a telescopic spring 1, and one end of the outer wall of the telescopic spring 1 away from the limit block is fixedly connected to the inner wall of the knife seat. When the waste plate is placed on the knife seat, the limit block is pressed down. After the waste plate to be sheared is placed on the knife seat, the weight of the waste plate forces the limit block under the waste plate to move downward, while the limit block that is not in contact with the waste plate continues to maintain a convex state. When the hydraulic pump station supplies oil to the pressing cylinder through the hydraulic pipe 2, the bite knife will rotate downward. When the bite knife rotates downward, since the shape of the waste plate is a regular block material, this will make The contact area between the waste plate and the bite knife is small, which may cause the position of the waste plate to move when the waste plate is clamped. When the waste plate moves, it will contact the nearest limit block that has not been lowered, so as to limit the movement of the waste plate. Through the operation of the above-mentioned components, the bite knife can reduce the movement of the waste plate when clamping the waste plate, avoiding the inability to clamp the waste plate due to the movement of the waste plate, thereby affecting the subsequent shearing operation of the waste plate. In addition, when the limit block descends, under the action of the support column, the top of the limit block will be parallel to the top of the knife seat, avoiding the limit block from moving downward excessively when the waste plate is irregular or compressible shearing material, causing the telescopic spring to be over-squeezed and damaged, affecting the subsequent operation.

[0009] Preferably, the clamping assembly includes a sliding block slidably connected to the inner wall of the bite knife, and a telescopic spring 2 is fixedly connected to the top of the sliding block. The end of the outer wall of the telescopic spring 2 away from the sliding block is fixedly connected to the inner wall of the bite knife. When the bite knife rotates downward, the sliding block will be squeezed inward, and when the sliding block shrinks inward, the telescopic spring 2 on its top will be compressed synchronously.

[0010] Preferably, the clamping assembly also includes a connecting tube 1 fixedly connected to the inner wall of the biting knife, a connecting tube 2 fixedly connected to the inner wall of the biting knife, the inner wall of the connecting tube 2 is fixedly connected to the outer wall of the connecting tube 1, and a limiting assembly is slidably connected to the inner wall of the connecting tube 2. Utilizing the above-mentioned characteristic that the biting knife will rotate downward under the action of the compression cylinder, a sliding block is provided. When the biting knife rotates downward, the sliding block will be squeezed to shrink inward. When the sliding block shrinks inward, the hydraulic oil at the top will be squeezed, so that the hydraulic oil enters the connecting tube 2 through the connecting tube 1, and then enters the telescopic column through the connecting tube 2, so that the telescopic column extends outward. When the telescopic column extends outward, the clamping plate is synchronously driven to move, so that when the telescopic column extends outward, the clamping plate and The outer surface of the waste plate is in contact with each other. Through the operation of the above-mentioned components, multiple clamping plates can be made to contact with the waste plate, thereby increasing the contact area with the waste plate and further improving the clamping effect of the waste plate. This avoids the waste plate being in a regular block shape, resulting in a small contact area between the waste plate and the bite knife, which affects the clamping effect of the waste plate. In addition, when the hydraulic oil enters the telescopic column through the second connecting pipe, it gradually flows from the middle to both sides, which can make the middle clamping plate contact with the waste plate first, thereby avoiding the situation where the clamping plate closest to the angle contacts the waste plate first when the bite knife rotates, causing one end of the waste plate to be subjected to force and tilted, thereby causing the waste plate to shift, affecting the clamping operation and subsequent shearing operation of the waste plate.

[0011] Preferably, the clamping assembly also includes a telescopic column fixedly connected to the inner wall of the biting knife, the inner wall of the telescopic column is fixedly connected to the outer wall of the connecting tube two, the inner wall of the telescopic column is fixedly connected to the outer wall of the connecting tube one, the outer wall of the telescopic column is fixedly connected with a rotating shaft one, and the outer wall of the rotating shaft one is rotatably connected with a clamping plate. By utilizing the above-mentioned characteristics, the hydraulic oil in the connecting tube two will first make the middle telescopic column extend outward. After the hydraulic oil in the connecting tube one enters the connecting tube two, it will first enter the nearest telescopic column to make it extend outward, and then the hydraulic oil will continue to flow to both ends to make the telescopic columns at both ends extend outward again. Since the middle telescopic column extends outward first, the middle clamping plate will first connect with the waste plate. The camming knife is used to hold the waste board in place and to prevent the waste board from being in contact with the clamping plate closest to the angle first when the camming knife rotates, so that one end of the waste board is subjected to force while the other end is blocked by the limit block, causing the waste board to arch in the middle, thereby causing deformation, affecting the clamping operation of the waste board. In addition, after the clamping plate contacts the waste board, the camming knife continues to rotate downward, causing the clamping plate to rotate with the rotation axis 1 as the axis. When the clamping plate rotates, a force opposite to the force that pushes the waste board to move toward the limit block is generated, thereby reducing the force on the limit block, avoiding the situation where the force of the waste board moving toward the limit block is large due to the large clamping force on the waste board, causing the limit block to produce some deformation in the long-term restriction of the movement of the waste board, thereby affecting its normal expansion and contraction.

[0012] Preferably, the limiting component includes a piston column slidably connected to the inner wall of the connecting tube 2, a pressure spring is fixedly connected to the outer wall of the piston column, one end of the outer wall of the pressure spring away from the piston column is fixedly connected to the inner wall of the connecting tube 2, and a rotating shaft 2 is rotatably connected to the inner wall of the biting knife. After the hydraulic oil enters the telescopic column through the connecting tube 2, when the hydraulic oil continues to enter the next telescopic column through the connecting tube 2, the piston column is temporarily closed by the pressure spring, and the hydraulic oil can only enter the nearest telescopic column first, causing it to extend outward.

[0013] Preferably, the limiting component also includes a rotating rod rotatably connected to the inner wall of the biting knife, the inner wall of the rotating rod is fixedly connected to the outer wall of the rotating shaft 2, the inner wall of the rotating rod is rotatably connected with a sliding buckle 1, the outer wall of the sliding buckle 1 is slidably connected to the inner wall of the connecting tube 2, the outer wall of the rotating rod is rotatably connected with a sliding buckle 2, the outer wall of the sliding buckle 2 is slidably connected to the inner wall of the telescopic column, and under the action of the telescopic spring 3, the rotating rod 1 and the rotating shaft 2 will rotate about the axis, allowing the sliding buckle 1 to be inserted into the groove on the piston column to limit the movement of the piston column. At the same time, the sliding buckle 2 will also enter the telescopic column and contact the inclined protrusion.

[0014] Preferably, the limiting component also includes a telescopic spring three fixedly connected to the outer wall of the rotating rod, an end of the outer wall of the telescopic spring three away from the rotating rod is fixedly connected to the inner wall of the bite knife, an inclined protrusion is fixedly connected to the inner wall of the telescopic column, and a one-way valve is fixedly connected to the inner wall of the connecting pipe one. Utilizing the above-mentioned characteristics that the hydraulic oil enters the telescopic column through the connecting pipe two, a piston column is set. After the hydraulic oil enters the telescopic column through the connecting pipe two, when the hydraulic oil continues to enter the next telescopic column through the connecting pipe two, the piston column is temporarily closed by the pressure spring. At this time, the hydraulic oil can only enter the nearest telescopic column first, so that it extends outward, so that the clamping plate and the waste plate are contacted and squeezed, the pressure of the hydraulic oil increases, and in turn pushes the piston column to move, so that the hydraulic oil enters the next telescopic column, so as to avoid the hydraulic oil entering the next telescopic column at the same time when entering the nearest telescopic column, so that the middle telescopic column cannot contact the outer surface of the waste plate first. In addition, when a certain telescopic column extends outward to the maximum value, it means that the clamp on this telescopic column The holding plate is not in contact with anything. At this time, under the action of the telescopic spring three, the rotating rod one and the rotating shaft two will rotate as the axis, so that the sliding buckle one will be inserted into the groove on the piston column to limit the movement of the piston column. At the same time, the sliding buckle two will also enter the telescopic column and contact the inclined surface convex block. When the clamping plate contacts the waste plate, or the bite knife rotates upward, the hydraulic oil will flow back and the telescopic column will shrink. The inclined surface convex block pushes the sliding buckle two to move, so that the rotating rod and the sliding buckle one are reset. When the bite knife is reset, the hydraulic oil passes through the one-way valve Entering into the connecting pipe 1, the backflow drives each component to reset. Through the operation of the above components, the first telescopic column farthest from the bite knife angle that does not contact anything can be restricted from continuing to flow into the next telescopic column when it is extended outward to the maximum value. In this way, when the bite knife continues to rotate, the clamping force of each clamping plate on the waste plate is increased, and the hydraulic oil is prevented from continuing to flow into the next telescopic column, so that the clamping force of each clamping plate on the waste plate is reduced, affecting the clamping effect on the waste plate.

[0015] A method for using a clamping device on a hydraulic shearing machine comprises the following steps:

[0016] S1: Install the equipment: Before using the equipment, install it at the required location and connect the power supply of the hydraulic pump station;

[0017] S2: Placing the material: After the waste plate to be sheared is placed on the knife seat, the weight of the waste plate forces the limit block under the waste plate to move downward, while the limit block that is not in contact with the waste plate continues to remain in a raised state.

[0018] The present invention has the following beneficial effects:

[0019] (1) The present invention utilizes the characteristic that when the waste plate is placed on the knife seat, the limit block will be pressed down. After the waste plate is placed on the knife seat, the limit block will move downward. When the hydraulic pump station supplies oil to the pressing cylinder through hydraulic pipe 2, the bite knife will rotate downward. When the bite knife rotates downward, since the shape of the waste plate is a regular block material, the contact area between the waste plate and the bite knife is small, which may cause the position of the waste plate to move when it is clamped. When the waste plate moves, it will contact the nearest limit block that has not been lowered. In this way, the movement of the waste plate can be limited. Through the operation of the above-mentioned components, the movement of the waste plate can be reduced when the biting knife clamps the waste plate, avoiding the inability to clamp the waste plate due to the movement of the waste plate, thereby affecting the subsequent shearing operation of the waste plate. In addition, when the limit block descends, under the action of the support column, the top of the limit block will be parallel to the top of the knife seat, avoiding excessive downward movement of the limit block when the waste plate is irregular or compressible shearing material, causing the telescopic spring to be over-squeezed and damaged, affecting subsequent operation.

[0020] (2) The present invention utilizes the above-mentioned characteristic that the engaging knife will rotate downward under the action of the compression cylinder. When the engaging knife rotates downward, it will squeeze the sliding block to shrink inward. When the sliding block shrinks inward, it will squeeze the hydraulic oil on its top, so that the hydraulic oil enters the connecting pipe 2 through the connecting pipe 1, and then enters the telescopic column through the connecting pipe 2, so that the telescopic column extends outward. When the telescopic column extends outward, it synchronously drives the clamping plate to move, so that when the telescopic column extends outward, the clamping plate contacts the outer surface of the waste plate. Through the operation of the above-mentioned components, multiple clamping plates can be brought into contact with the waste plate, increasing the contact with the waste plate The contact area further improves the clamping effect of the waste plate, and avoids the situation that the contact area between the waste plate and the bite knife is small due to the regular block shape of the waste plate, which affects the clamping effect of the waste plate. In addition, when the hydraulic oil enters the telescopic column through the second connecting pipe, it gradually flows from the middle to both sides, which can make the middle clamping plate contact with the waste plate first, avoiding the situation that when the bite knife rotates, the clamping plate closest to the angle contacts with the waste plate first, causing one end of the waste plate to be stressed and tilted, thereby causing the waste plate to shift, affecting the clamping operation and subsequent shearing operation of the waste plate.

[0021] (3) The present invention utilizes the above-mentioned characteristic that the hydraulic oil in the second connecting pipe will first cause the middle telescopic column to extend outward. After the hydraulic oil in the first connecting pipe enters the second connecting pipe, it will first enter the nearest telescopic column to cause it to extend outward. Then the hydraulic oil continues to flow to both ends to cause the telescopic columns at both ends to extend outward. Since the middle telescopic column extends outward first, the middle clamping plate will first contact the waste plate, thereby preventing the clamping plate closest to the angle from contacting the waste plate first when the bite knife rotates, so that one end of the waste plate is subjected to force while the other end is blocked by the restricted position block. The block causes the waste plate to arch from the middle, thereby causing deformation, affecting the clamping operation of the waste plate. In addition, after the clamping plate contacts the waste plate, the engaging knife continues to rotate downward, causing the clamping plate to rotate with the rotating axis 1 as the axis. When the clamping plate rotates, a force opposite to the force pushing the waste plate to move toward the limit block is generated, thereby reducing the force on the limit block, avoiding the situation where the force of the waste plate moving toward the limit block is also large due to the large clamping force on the waste plate, causing the limit block to produce some deformation in the long-term restriction of the movement of the waste plate, thereby affecting its normal expansion and contraction.

[0022] (4) The present invention utilizes the above-mentioned characteristic that the hydraulic oil enters the telescopic column through the connecting pipe 2. After the hydraulic oil enters the telescopic column through the connecting pipe 2, when the hydraulic oil continues to enter the next telescopic column through the connecting pipe 2, the piston column is temporarily closed by the pressure spring, and the hydraulic oil can only enter the nearest telescopic column first, so that it extends outward, so that the clamping plate and the waste plate are contacted and squeezed, and the pressure of the hydraulic oil increases, which in turn pushes the piston column to move, so that the hydraulic oil enters the next telescopic column, so that the hydraulic oil does not enter the next telescopic column at the same time when entering the nearest telescopic column, so that the middle telescopic column cannot contact the outer surface of the waste plate first. In addition, when a certain telescopic column extends outward to When it is at the maximum value, the telescopic spring three will cause the rotating rod one and the rotating shaft two to rotate as the axis, so that the sliding buckle one will be inserted into the groove on the piston column to limit the movement of the piston column. At the same time, the sliding buckle two will also enter the telescopic column and contact the inclined protrusion. Through the operation of the above components, the first telescopic column that is farthest from the bite knife angle and has not contacted anything can be restricted from continuing to flow into the next telescopic column when it extends outward to the maximum value. In this way, when the bite knife continues to rotate, the clamping force of each clamping plate on the waste plate can be increased, and the hydraulic oil can be prevented from continuing to flow into the next telescopic column, so that the clamping force of each clamping plate on the waste plate can be reduced, affecting the clamping effect on the waste plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the internal components of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 3 It is a cross-sectional schematic diagram of the anti-shifting mechanism of the present invention;

[0027] Figure 4 It is a cross-sectional schematic diagram of the clamping assembly of the present invention;

[0028] Figure 5 For the present invention Figure 4 A is an enlarged schematic diagram;

[0029] Figure 6 It is a cross-sectional schematic diagram of the restriction assembly of the present invention;

[0030] Figure 7 For the present invention Figure 6 A magnified schematic diagram of B;

[0031] Figure 8 For the present invention Figure 6 A magnified schematic diagram of middle C;

[0032] Fig. 9 It is a schematic diagram of the working process of the present invention.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] In the figure: 1, support seat; 101, support plate; 102, hydraulic pump station; 2, hydraulic shearing mechanism; 201, waste plate; 202, knife seat; 203, shearing knife head; 204, shearing oil cylinder; 205, hydraulic pipe 1; 3, anti-shift mechanism; 301, bite knife; 302, pressing oil cylinder; 303, hydraulic pipe 2; 304, limit block; 305, support column; 306, telescopic spring 1; 4, clamping assembly; 40 1. Sliding block; 402. Telescopic spring 2; 403. Connecting pipe 1; 404. Connecting pipe 2; 405. Telescopic column; 406. Rotating shaft 1; 407. Clamping plate; 5. Limiting assembly; 501. Piston column; 502. Pressure spring; 503. Rotating shaft 2; 504. Rotating rod; 505. Sliding buckle 1; 506. Sliding buckle 2; 507. Telescopic spring 3; 508. Inclined protrusion; 509. One-way valve. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] For example, see Figure 1 - Figure 3 The present invention is a clamping device on a hydraulic shearing machine, comprising a support seat 1, a support plate 101 is fixedly connected to the top of the support seat 1, and a hydraulic pump station 102 is fixedly connected to the outer wall of the support seat 1;

[0037] A hydraulic shearing mechanism 2, the hydraulic shearing mechanism 2 comprises a waste plate 201, a knife seat 202 for shearing the waste plate 201, a shearing knife head 203, a shearing cylinder 204, a hydraulic pipe 205, and an anti-shifting mechanism 3 for preventing the waste plate 201 from shifting;

[0038] The outer wall of the knife seat 202 is fixedly connected to the outer wall of the support seat 1, the outer wall of the shearing cutter head 203 is rotatably connected to the inner wall of the support seat 1, the bottom of the shearing cylinder 204 is fixedly connected to the top of the support seat 1, the outer wall of the shearing cylinder 204 is rotatably connected to the inner wall of the shearing cutter head 203, the outer wall of the hydraulic pipe 205 is fixedly connected to the inner wall of the shearing cylinder 204, and the outer wall of the hydraulic pipe 205 is fixedly connected to the inner wall of the hydraulic pump station 102.

[0039] The anti-displacement mechanism 3 includes an engaging knife 301 rotatably connected to the inner wall of the support seat 1, and a pressing cylinder 302 is rotatably connected to the inner wall of the engaging knife 301. The outer wall of the pressing cylinder 302 is rotatably connected to the inner wall of the support plate 101, and the inner wall of the pressing cylinder 302 is fixedly connected to a hydraulic pipe 2 303, and the outer wall of the hydraulic pipe 2 303 is fixedly connected to the inner wall of the hydraulic pump station 102. The inner wall of the engaging knife 301 is slidably connected to a clamping assembly 4. When the hydraulic pump station 102 supplies oil to the pressing cylinder 302 through the hydraulic pipe 2 303, the engaging knife 301 will rotate downward. When the engaging knife 301 rotates downward, since the waste plate 201 has a regular block-shaped material, the contact area between the waste plate 201 and the engaging knife 301 will be smaller.

[0040] The anti-shift mechanism 3 also includes a limit block 304 slidably connected to the inner wall of the knife seat 202, the bottom of the limit block 304 is fixedly connected to a support column 305, the bottom of the limit block 304 is fixedly connected to a telescopic spring 306, and the end of the outer wall of the telescopic spring 306 away from the limit block 304 is fixedly connected to the inner wall of the knife seat 202. When the waste plate 201 is placed on the knife seat 202, the limit block 304 will be pressed down. After the waste plate 201 to be sheared is placed on the knife seat 202, the weight of the waste plate 201 forces the limit block 304 below the waste plate 201 to move downward, while the limit block 304 that is not in contact with the waste plate 201 continues to remain in a raised state. When the hydraulic pump station 102 supplies oil to the pressing cylinder 302 through the hydraulic pipe 2 303, the bite knife 301 will rotate downward. When the bite knife 301 rotates downward, due to the regular shape of the waste plate 201 When the waste plate 201 moves, it will contact with the nearest limit block 304 that has not been lowered, so as to limit the movement of the waste plate 201. Through the operation of the above-mentioned components, the bite knife 301 can reduce the movement of the waste plate 201 when clamping the waste plate 201, so as to avoid the failure to clamp the waste plate 201 due to the movement of the waste plate 201, thereby affecting the subsequent shearing operation of the waste plate 201. In addition, when the limit block 304 descends, under the action of the support column 305, the top of the limit block 304 will be parallel to the top of the knife seat 202, so as to avoid excessive downward movement of the limit block 304 when the waste plate 201 is an irregular or compressible shearing material, so that the telescopic spring 306 is over-extruded and damaged, affecting the subsequent operation.

[0041] For example 2, please refer to Figure 4 - Fig. 9 The present invention is a clamping device on a hydraulic shearing machine. On the basis of embodiment 1, the clamping assembly 4 includes a sliding block 401 slidably connected to the inner wall of the bite knife 301, and a telescopic spring 2 402 is fixedly connected to the top of the sliding block 401. The end of the outer wall of the telescopic spring 2 402 away from the sliding block 401 is fixedly connected to the inner wall of the bite knife 301. When the bite knife 301 rotates downward, the sliding block 401 will be squeezed to shrink inward. When the sliding block 401 shrinks inward, the telescopic spring 2 402 on its top will be compressed synchronously.

[0042] The clamping assembly 4 also includes a connecting pipe 1 403 fixedly connected to the inner wall of the biting knife 301, a connecting pipe 2 404 fixedly connected to the inner wall of the biting knife 301, the inner wall of the connecting pipe 2 404 is fixedly connected to the outer wall of the connecting pipe 1 403, and the inner wall of the connecting pipe 2 404 is slidably connected with a limiting assembly 5. By utilizing the above-mentioned characteristic that the biting knife 301 will rotate downward under the action of the compression cylinder 302, a sliding block 401 is provided. When the biting knife 301 rotates downward, the sliding block 401 will be squeezed to shrink inward. When the sliding block 401 shrinks inward, the hydraulic oil at the top thereof will be squeezed, so that the hydraulic oil enters the connecting pipe 2 404 through the connecting pipe 1 403, and then enters the telescopic column 405 through the connecting pipe 2 404, so that the telescopic column 405 extends outward. When the telescopic column 405 extends outward, the clamping plate 407 is synchronously driven to move, so that when the telescopic column 405 extends outward, the clamping plate 407 is 407 is in contact with the outer surface of the waste plate 201. Through the operation of the above-mentioned components, multiple clamping plates 407 can be made to contact with the waste plate 201, thereby increasing the contact area with the waste plate 201 and further improving the clamping effect of the waste plate 201, thereby avoiding that the waste plate 201 has a small contact area with the bite knife 301 due to the regular block shape of the waste plate 201, thereby affecting the clamping effect of the waste plate 201. In addition, when the hydraulic oil enters the telescopic column 405 through the connecting pipe 204, it gradually flows from the middle to both sides, which can make the middle clamping plate 407 contact with the waste plate 201 first, thereby avoiding that when the bite knife 301 rotates, the clamping plate 407 closest to the angle contacts the waste plate 201 first, causing one end of the waste plate 201 to be subjected to force and tilted, thereby causing the waste plate 201 to shift, affecting the clamping operation and subsequent shearing operation of the waste plate 201.

[0043] The clamping assembly 4 also includes a telescopic column 405 fixedly connected to the inner wall of the biting knife 301, the inner wall of the telescopic column 405 is fixedly connected to the outer wall of the connecting pipe 404, the inner wall of the telescopic column 405 is fixedly connected to the outer wall of the connecting pipe 1 403, the outer wall of the telescopic column 405 is fixedly connected with a rotating shaft 1 406, and the outer wall of the rotating shaft 1 406 is rotatably connected with a clamping plate 407. By utilizing the above-mentioned characteristics, the hydraulic oil in the connecting pipe 2 404 will first make the middle telescopic column 405 extend outward. After the hydraulic oil in the connecting pipe 1 403 enters the connecting pipe 2 404, it will first enter the nearest telescopic column 405 to make it extend outward, and then the hydraulic oil will continue to flow to both ends to make the telescopic columns 405 at both ends extend outward again. Since the middle telescopic column 405 extends outward first, the middle clamping plate 407 will first contact with the waste plate 201 to avoid When the engaging knife 301 rotates, the clamping plate 407 closest to the angle contacts the waste plate 201 first, so that one end of the waste plate 201 is subjected to force while the other end is blocked by the limiting block 304, causing the waste plate 201 to arch from the middle, thereby generating deformation, affecting the clamping operation of the waste plate 201. In addition, after the clamping plate 407 contacts the waste plate 201, the engaging knife 301 continues to rotate downward, causing the clamping plate 407 to rotate with the rotating shaft 1 406 as the axis. When the clamping plate 407 rotates, a force opposite to the movement of the waste plate 201 toward the limiting block 304 is generated, thereby reducing the force on the limiting block 304, avoiding the situation that the force of the waste plate 201 moving toward the limiting block 304 is also large due to the large clamping force on the waste plate 201, causing the limiting block 304 to generate some deformation in the long-term restriction of the movement of the waste plate 201, thereby affecting its normal expansion and contraction.

[0044] The limiting component 5 includes a piston column 501 slidably connected to the inner wall of the connecting tube 404, a pressure spring 502 is fixedly connected to the outer wall of the piston column 501, and one end of the outer wall of the pressure spring 502 away from the piston column 501 is fixedly connected to the inner wall of the connecting tube 404, and a rotating shaft 503 is rotatably connected to the inner wall of the biting knife 301. After the hydraulic oil enters the telescopic column 405 through the connecting tube 404, when the hydraulic oil continues to enter the next telescopic column 405 through the connecting tube 404, the piston column 501 is temporarily closed by the pressure spring 502, and the hydraulic oil can only enter the nearest telescopic column 405 first, causing it to extend outward.

[0045] The limiting component 5 also includes a rotating rod 504 rotatably connected to the inner wall of the biting knife 301, the inner wall of the rotating rod 504 is fixedly connected to the outer wall of the rotating shaft 2 503, the inner wall of the rotating rod 504 is rotatably connected with a sliding buckle 1 505, the outer wall of the sliding buckle 1 505 is slidably connected to the inner wall of the connecting tube 2 404, the outer wall of the rotating rod 504 is rotatably connected with a sliding buckle 2 506, the outer wall of the sliding buckle 2 506 is slidably connected to the inner wall of the telescopic column 405, and under the action of the telescopic spring 3 507, the rotating rod 504 and the rotating shaft 2 503 are rotated as the axis, so that the sliding buckle 1 505 is inserted into the groove on the piston column 501 to limit the movement of the piston column 501, and at the same time, the sliding buckle 2 506 will also enter the telescopic column 405 and contact the inclined protrusion 508.

[0046] The limiting component 5 also includes a telescopic spring 3 507 fixedly connected to the outer wall of the rotating rod 504, and one end of the outer wall of the telescopic spring 3 507 away from the rotating rod 504 is fixedly connected to the inner wall of the bite knife 301, and an inclined protrusion 508 is fixedly connected to the inner wall of the telescopic column 405. A one-way valve 509 is fixedly connected to the inner wall of the connecting pipe 1 403. By utilizing the above-mentioned characteristics that the hydraulic oil enters the telescopic column 405 through the connecting pipe 2 404, a piston column 501 is set. After the hydraulic oil enters the telescopic column 405 through the connecting pipe 2 404, when the hydraulic oil continues to enter the next telescopic column 405 through the connecting pipe 2 404, due to the piston column 501 is acted upon by the pressure spring 502 to temporarily close the connecting pipe 404. At this time, the hydraulic oil can only enter the nearest telescopic column 405 first, so that it extends outward, and after the clamping plate 407 contacts and squeezes the waste plate 201, the pressure of the hydraulic oil increases, which in turn pushes the piston column 501 to move, so that the hydraulic oil enters the next telescopic column 405, so as to avoid the hydraulic oil entering the next telescopic column 405 at the same time when entering the nearest telescopic column 405, so that the middle telescopic column 405 cannot contact the outer surface of the waste plate 201 first. In addition, when a certain telescopic column 405 extends outward to the maximum value, it means that the clamping plate 407 on this telescopic column 405 is 07 is not in contact with anything. At this time, under the action of telescopic spring three 507, the rotating rod 504 and the rotating shaft two 503 are rotated as the axis, so that the sliding buckle one 505 is inserted into the groove on the piston column 501 to limit the movement of the piston column 501. At the same time, the sliding buckle two 506 will also enter the telescopic column 405 and contact the inclined surface protrusion 508. When this clamping plate 407 contacts the waste plate 201, or the bite knife 301 rotates upward, the hydraulic oil flows back to the telescopic column 405 and contracts. The inclined surface protrusion 508 pushes the sliding buckle two 506 to move, so that the rotating rod 504 and the sliding buckle one 505 are reset. When the bite knife 301 is reset The hydraulic oil enters the connecting pipe 403 through the one-way valve 509, and the backflow drives the various components to reset. Through the operation of the above components, the first telescopic column 405 that is farthest from the angle of the bite knife 301 and has not contacted anything can be restricted from continuing to flow into the next telescopic column 405 when it is extended outward to the maximum value. In this way, when the bite knife 301 continues to rotate, the clamping force of each clamping plate 407 on the waste plate 201 is increased, and the hydraulic oil is prevented from continuing to flow into the next telescopic column 405, so that the clamping force of each clamping plate 407 on the waste plate 201 is reduced, affecting the clamping effect on the waste plate 201.

[0047] The method for using the clamping device on the hydraulic shearing machine includes the following steps:

[0048] S1: Installing the equipment: Before using the equipment, first install the equipment at the required location and connect the power supply of the hydraulic pump station 102;

[0049] S2: Placing materials: After the waste plate 201 to be sheared is placed on the knife seat 202, the weight of the waste plate 201 forces the limit block 304 below the waste plate 201 to move downward, while the limit block 304 that is not in contact with the waste plate 201 continues to remain in a raised state.

[0050] A specific application of this embodiment is: before using the device, first install the device at the required position, then put the waste plate 201 on the knife seat 202, and turn on the power of the hydraulic pump station 102. After the waste plate 201 to be sheared is placed on the knife seat 202, the weight of the waste plate 201 forces the limit block 304 under the waste plate 201 to move downward, while the limit block 304 that is not in contact with the waste plate 201 continues to maintain a convex state. When the hydraulic pump station 102 supplies oil to the pressing cylinder 302 through the hydraulic pipe 203, the bite knife 301 will rotate downward. When the bite knife 301 rotates downward, since the shape of the waste plate 201 is a regular block material, this will cause the waste plate 201 and the bite knife 301 to move downward. The small contact area may cause the position of the waste plate 201 to move when it is clamped. When the waste plate 201 moves, it will contact the nearest limit block 304 that has not been lowered, so as to limit the movement of the waste plate 201. Through the operation of the above-mentioned components, the bite knife 301 can reduce the movement of the waste plate 201 when clamping the waste plate 201, so as to avoid the failure to clamp the waste plate 201 due to the movement of the waste plate 201, thereby affecting the subsequent shearing operation of the waste plate 201. In addition, when the limit block 304 descends, the top of the limit block 304 will be parallel to the top of the knife seat 202 under the action of the support column 305, so as to avoid the limit block 304 from being parallel to the top of the knife seat 202 when the waste plate 201 is irregular or compressible. The block 304 moves downward excessively, causing the telescopic spring 1 306 to be over-squeezed and damaged, affecting the subsequent operation. When the bite knife 301 rotates downward, it squeezes the sliding block 401 to shrink inward. When the sliding block 401 shrinks inward, it squeezes the hydraulic oil on its top, causing the hydraulic oil to enter the connecting pipe 2 404 through the connecting pipe 1 403, and then enter the telescopic column 405 through the connecting pipe 2 404, causing the telescopic column 405 to extend outward. When the telescopic column 405 extends outward, the clamping plate 407 is synchronously driven to move, so that when the telescopic column 405 extends outward, the clamping plate 407 contacts the outer surface of the waste plate 201. Through the operation of the above-mentioned components, multiple clamping plates 407 can be made to contact with the waste plate 201, increasing the contact with the waste plate 201, further improves the clamping effect of the waste plate 201, and avoids the situation that the waste plate 201 has a small contact area with the bite knife 301 due to the regular block shape of the waste plate 201, which affects the clamping effect of the waste plate 201. In addition, when the hydraulic oil enters the telescopic column 405 through the connecting pipe 2 404, it gradually flows from the middle to both sides, which can make the middle clamping plate 407 contact with the waste plate 201 first, and avoids the situation that when the bite knife 301 rotates, the clamping plate 407 closest to the angle contacts the waste plate 201 first, causing one end of the waste plate 201 to be stressed and tilted, thereby causing the waste plate 201 to shift, affecting the clamping operation and subsequent shearing operation of the waste plate 201.

[0051] By utilizing the above-mentioned feature, the hydraulic oil in the second connecting pipe 404 will first make the middle telescopic column 405 extend outward. After the hydraulic oil in the first connecting pipe 403 enters the second connecting pipe 404, it will first enter the nearest telescopic column 405 to make it extend outward. Then the hydraulic oil will continue to flow to both ends to make the telescopic columns 405 at both ends extend outward again. Since the middle telescopic column 405 extends outward first, the middle clamping plate 407 will first contact the waste plate 201, so as to prevent the clamping plate 407 closest to the angle from contacting the waste plate 201 first when the bite knife 301 rotates, so that one end of the waste plate 201 is subjected to force while the other end is blocked by the limit block 304, so that the waste plate 201 is arched from the middle, which causes deformation, affecting the clamping operation of the waste plate 201. In addition, after the clamping plate 407 contacts the waste plate 201, the bite knife 301 continues to rotate downward, causing the clamping plate 407 to rotate with the rotation axis 406 as the axis. When the clamping plate 407 rotates, a force opposite to the force that pushes the waste plate 201 to move toward the limit block 304 is generated, thereby reducing the force on the limit block 304 and avoiding the situation that the force of the waste plate 201 moving toward the limit block 304 is also large due to the large clamping force on the waste plate 201, so that the limit block 304 produces some deformation in the long-term restriction of the movement of the waste plate 201, thereby affecting its normal expansion and contraction.

[0052] By utilizing the above-mentioned feature that the hydraulic oil enters the telescopic column 405 through the second connecting pipe 404, a piston column 501 is provided. After the hydraulic oil enters the telescopic column 405 through the second connecting pipe 404, when the hydraulic oil continues to enter the next telescopic column 405 through the second connecting pipe 404, the piston column 501 is temporarily closed by the pressure spring 502, and at this time, the hydraulic oil can only enter the nearest telescopic column 405 first, so that it extends outward, and after the clamping plate 407 contacts and squeezes the waste plate 201, the pressure of the hydraulic oil increases, and it pushes The movable piston column 501 moves to allow the hydraulic oil to enter the next telescopic column 405, so as to prevent the hydraulic oil from entering the next telescopic column 405 at the same time when entering the nearest telescopic column 405, so that the middle telescopic column 405 cannot contact the outer surface of the waste plate 201 first. In addition, when a certain telescopic column 405 extends outward to the maximum value, it means that the clamping plate 407 on this telescopic column 405 is not in contact with anything. At this time, under the action of the telescopic spring three 507, the rotating rod 504-rotating shaft two 503 is rotated as the axis, so that the sliding buckle one 505 is inserted The groove on the piston column 501 limits the movement of the piston column 501. At the same time, the sliding buckle 2 506 also enters the telescopic column 405 and contacts the inclined protrusion 508. When the clamping plate 407 contacts the waste plate 201, or the bite knife 301 rotates upward, the hydraulic oil generates a backflow of the telescopic column 405 and contracts. The inclined protrusion 508 pushes the sliding buckle 2 506 to move, so that the rotating rod 504 and the sliding buckle 1 505 are reset. When the bite knife 301 is reset, the hydraulic oil enters the connecting pipe 1 403 through the one-way valve 509, thereby the backflow drives Each component is reset. Through the operation of the above components, the first telescopic column 405 that is farthest from the angle of the bite knife 301 and has not contacted anything can be restricted from flowing the hydraulic oil to the next telescopic column 405 when it is extended outward to the maximum value. In this way, when the bite knife 301 continues to rotate, the clamping force of each clamping plate 407 on the waste plate 201 is increased, and the hydraulic oil is prevented from continuing to flow to the next telescopic column 405, so that the clamping force of each clamping plate 407 on the waste plate 201 is reduced, affecting the clamping effect on the waste plate 201.

[0053] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A clamping device for a hydraulic shearing machine, comprising a support base (1), a support plate (101) being fixedly connected to the top of the support base (1), and a hydraulic pump station (102) being fixedly connected to the outer wall of the support base (1), characterized in that: Also includes: A hydraulic shearing mechanism (2), the hydraulic shearing mechanism (2) comprising a waste plate (201), a knife seat (202) for shearing the waste plate (201), a shearing knife head (203), a shearing cylinder (204), a hydraulic pipe (205), and an anti-displacement mechanism (3) for preventing the waste plate (201) from shifting; The outer wall of the knife seat (202) is fixedly connected to the outer wall of the support seat (1); the outer wall of the shearing knife head (203) is rotatably connected to the inner wall of the support seat (1); the bottom of the shearing oil cylinder (204) is fixedly connected to the top of the support seat (1); the outer wall of the shearing oil cylinder (204) is rotatably connected to the inner wall of the shearing knife head (203); the outer wall of the hydraulic pipe (205) is fixedly connected to the inner wall of the shearing oil cylinder (204); and the outer wall of the hydraulic pipe (205) is fixedly connected to the inner wall of the hydraulic pump station (102).

2. The clamping device on a hydraulic shearing machine according to claim 1, characterized in that: The anti-displacement mechanism (3) comprises an engaging knife (301) rotatably connected to the inner wall of the support seat (1); the inner wall of the engaging knife (301) is rotatably connected to a pressing cylinder (302); the outer wall of the pressing cylinder (302) is rotatably connected to the inner wall of the support plate (101); the inner wall of the pressing cylinder (302) is fixedly connected to a hydraulic pipe 2 (303); the outer wall of the hydraulic pipe 2 (303) is fixedly connected to the inner wall of the hydraulic pump station (102); and the inner wall of the engaging knife (301) is slidably connected to a clamping assembly (4).

3. The clamping device on a hydraulic shearing machine according to claim 2, characterized in that: The anti-displacement mechanism (3) further comprises a limit block (304) slidably connected to the inner wall of the knife seat (202); the bottom of the limit block (304) is fixedly connected to a support column (305); the bottom of the limit block (304) is fixedly connected to a telescopic spring (306); an end of the outer wall of the telescopic spring (306) away from the limit block (304) is fixedly connected to the inner wall of the knife seat (202).

4. The clamping device on a hydraulic shearing machine according to claim 3, characterized in that: The clamping assembly (4) comprises a sliding block (401) slidably connected to the inner wall of the bite knife (301), the top of the sliding block (401) is fixedly connected to a second telescopic spring (402), and one end of the outer wall of the second telescopic spring (402) away from the sliding block (401) is fixedly connected to the inner wall of the bite knife (301).

5. The clamping device on a hydraulic shearing machine according to claim 4, characterized in that: The clamping assembly (4) also includes a connecting tube 1 (403) fixedly connected to the inner wall of the biting knife (301), a connecting tube 2 (404) fixedly connected to the inner wall of the biting knife (301), the inner wall of the connecting tube 2 (404) is fixedly connected to the outer wall of the connecting tube 1 (403), and a limiting assembly (5) is slidably connected to the inner wall of the connecting tube 2 (404).

6. The clamping device for a hydraulic shearing machine according to claim 5, characterized in that: The clamping assembly (4) also includes a telescopic column (405) fixedly connected to the inner wall of the biting knife (301), the inner wall of the telescopic column (405) is fixedly connected to the outer wall of the connecting tube 2 (404), the inner wall of the telescopic column (405) is fixedly connected to the outer wall of the connecting tube 1 (403), the outer wall of the telescopic column (405) is fixedly connected to the rotating shaft 1 (406), and the outer wall of the rotating shaft 1 (406) is rotatably connected to a clamping plate (407).

7. The clamping device for a hydraulic shearing machine according to claim 6, characterized in that: The limiting assembly (5) includes a piston column (501) slidably connected to the inner wall of the second connecting tube (404); a pressure spring (502) is fixedly connected to the outer wall of the piston column (501); one end of the outer wall of the pressure spring (502) away from the piston column (501) is fixedly connected to the inner wall of the second connecting tube (404); and a rotating shaft (503) is rotatably connected to the inner wall of the engaging knife (301).

8. The clamping device for a hydraulic shearing machine according to claim 7, characterized in that: The limiting assembly (5) also includes a rotating rod (504) rotatably connected to the inner wall of the biting knife (301), the inner wall of the rotating rod (504) is fixedly connected to the outer wall of the rotating shaft (503), the inner wall of the rotating rod (504) is rotatably connected to a sliding buckle (505), the outer wall of the sliding buckle (505) is slidably connected to the inner wall of the connecting tube (404), the outer wall of the rotating rod (504) is rotatably connected to a sliding buckle (506), and the outer wall of the sliding buckle (506) is slidably connected to the inner wall of the telescopic column (405).

9. The clamping device for a hydraulic shearing machine according to claim 8, characterized in that: The limiting assembly (5) also includes a telescopic spring three (507) fixedly connected to the outer wall of the rotating rod (504), and one end of the outer wall of the telescopic spring three (507) away from the rotating rod (504) is fixedly connected to the inner wall of the biting knife (301), the inner wall of the telescopic column (405) is fixedly connected to a beveled protrusion (508), and the inner wall of the connecting pipe one (403) is fixedly connected to a one-way valve (509).

10. A method for using a clamping device on a hydraulic shearing machine, using the clamping device on a hydraulic shearing machine as claimed in claim 9, characterized in that: The following steps are included: S1: Installing the equipment: Before using the equipment, first install the equipment at the required location and connect the power supply of the hydraulic pump station (102); S2: Placing materials: After the waste plate (201) to be sheared is placed on the knife seat (202), the weight of the waste plate (201) forces the limit block (304) below the waste plate (201) to move downward, while the limit block (304) not in contact with the waste plate (201) continues to remain in a raised state.

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