High-speed punching machine facilitating workpiece fixing

Abstract

The utility model relates to the technical field of high-speed punching machines, in particular to a high-speed punching machine convenient for fixing a workpiece, which comprises a high-speed punching machine body, a lower die and a punching die, and further comprises two moving plates, the high-speed punching machine body is provided with a mounting groove, and the moving plates can slide on the inner side of the mounting groove; two connecting shells; t-shaped sliding grooves are formed in the upper sides of the movable plates, and the pressing plates can slide on the inner sides of the T-shaped sliding grooves; the left end and the right end of the inner side of the connecting shell are each provided with a connecting plate A in a sliding mode, and the connecting plates A are fixedly connected with the adjusting strips. A regulation unit A; two adjusting units B; and two pressing units. By arranging the moving plate, the connecting shell, the pressing plate, the adjusting strip, the adjusting unit A, the adjusting unit B, the downward pressing unit and the connecting plate A, a workpiece is automatically clamped and fixed to the machining center of the high-speed punching machine, the labor intensity of workers is relieved, the adjusting time during installation is shortened, and the workpiece clamping and fixing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-speed punching machines, in particular to a high-speed punching machine which is convenient for fixing a workpiece. Background Art

[0002] The high-speed punch press is constructed from a special, integrated cast iron alloy for high rigidity and shock resistance. The slide features a long guideway and is equipped with a slide balancing device to ensure precise and stable operation. All wear-resistant components utilize an electronic, timed automatic lubrication system; if lubricant is depleted, the press automatically stops. The advanced, yet simple, control system ensures precise slide movement and stopping. It can be adapted to any automated production requirement, improving production efficiency and reducing costs.

[0003] When using a high-speed punch press, it is necessary to install the corresponding placement mold and punching mold according to the size and shape of the processed parts, and then place and fix the corresponding plate-shaped workpiece on the placement mold for processing.

[0004] High-speed punching machines typically process multiple parts on a plate-like workpiece. These workpieces require manual placement and placement, requiring personnel to manually position the workpiece in the center of the die to improve the punching efficiency of the plate-like workpiece. Manual replacement and installation are labor-intensive, and require repeated adjustments during installation, impacting the efficiency of plate-like workpiece installation and fixation. To address this issue, we propose a high-speed punching machine that facilitates workpiece fixation. Utility Model Content

[0005] The purpose of the utility model is to solve the problems in the prior art that high-speed punching machines usually process multiple parts on a plate-shaped workpiece and plan the plate-shaped workpiece. During processing, personnel are required to manually install the plate-shaped workpiece at the center of the mold to improve the punching utilization rate of the plate-shaped workpiece. Manual replacement and installation are labor-intensive and require repeated adjustments during installation, which affects the installation and fixing efficiency of the plate-shaped workpiece. A high-speed punching machine that is convenient for workpiece fixing is proposed.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A high-speed punching machine is designed to facilitate workpiece fixing. The high-speed punching machine comprises a high-speed punching machine body, a lower die, and a punching die. The lower die is located below the punching die. The punching die is detachably connected to the upper shaft end of the high-speed punching machine body. The lower die is detachably connected to the upper platform of the high-speed punching machine body. The high-speed punching machine body is connected to a power supply and a controller via a wire. The high-speed punching machine body also comprises:

[0008] Two movable plates, the high-speed punch body is provided with a mounting groove, the movable plates are located on the upper side of the lower mold and can slide inside the mounting groove;

[0009] two connecting shells, the connecting shells being located between the upper side of the lower mold and the two movable plates;

[0010] Two pressing plates, each of which is located between two movable plates. A T-shaped sliding groove is provided on the upper side of each movable plate, and each pressing plate can slide inside the T-shaped sliding groove;

[0011] Four adjustment bars, located between the two movable plates and on the left and right sides of the connecting shell and the front and rear sides of the pressure plate. A connecting plate A is slidably mounted on both the left and right ends of the inner side of the connecting shell, and the connecting plate A is fixedly connected to the side of the adjustment bar facing the pressure plate;

[0012] A adjusting unit, the A adjusting unit is located between the two movable plates and the lower mold;

[0013] Two B adjustment units, each of which is located between the two adjustment bars and the movable plate;

[0014] Two pressing units are located between the pressing plate and the moving plate.

[0015] Preferably, the A adjustment unit includes two double-end electric linear slides, and both movable ends of the double-end electric linear slides are equipped with A driving blocks, and the A driving blocks are located on the front and rear sides of the lower mold and are fixedly connected to the lower side of the movable plate. The two double-end electric linear slides are installed on the front and rear sides of the lower mold, and the front and rear sides of the lower mold are fixed with limit plates. The A driving block is provided with an A sliding groove on the side facing the lower mold, and the limit plate can slide inside the A sliding groove. The double-end electric linear slides are connected to the high-speed punching machine body through a wire.

[0016] By adopting the above technical solution, the A adjustment unit can automatically move with the movable plate on the lower mold, quickly clamping workpieces of different sizes, thereby improving the installation efficiency of the workpieces.

[0017] Preferably, a positioning rod is provided on the side of the limit plate away from the lower mold, and an A positioning hole is provided on one side of the A driving block. The positioning rod can slide inside the A positioning hole, and mounting blocks are fixed on the left and right sides of the positioning rod. The mounting block is detachably connected to the lower mold.

[0018] By adopting the above technical solution, the positioning rod plays a guiding and limiting role in the movement of the A driving block, making the movement of the A driving block more stable.

[0019] Preferably, the B adjustment unit includes a motor, two sliding holes are provided on one side of the movable plate, a sliding block slides inside the sliding hole, the sliding block is fixedly connected to the side of the adjustment bar away from the connecting shell, a B driving block is fixed on the side of the sliding block away from the adjusting bar, a screw is provided on the side of the movable plate away from the connecting shell, a threaded hole is provided on one side of the B driving block, the screw and the inner side of the threaded hole are connected by threaded engagement transmission, support blocks are rotated at both ends of the outer side of the screw, the support block is fixedly connected to the movable plate, the two B driving blocks are located between the two support blocks, the motor shaft end is connected to the front end of the screw, the motor is installed on one side of the movable plate and the motor is connected to the high-speed punch body through a wire.

[0020] By adopting the above technical solution, the B adjustment unit can drive the adjustment bar to move, allowing the adjustment bar to move with the connecting shell through the A connecting plate, thereby automatically and quickly clamping workpieces of different sizes, thereby improving the installation efficiency of the workpieces.

[0021] Preferably, the movable plate is provided with four A positioning grooves on the side facing the connecting shell, the B driving block is provided with two B positioning grooves on the side facing the movable plate, and the adjustment bar is fixed with two positioning blocks on the side facing the movable plate, the positioning blocks can slide inside the A positioning groove, and a positioning bar is slid inside the B positioning groove, and the positioning bar is fixedly connected to one side of the movable plate.

[0022] By adopting the above technical solution, the positioning block guides and limits the movement of the adjustment bar, and the positioning bar guides and limits the movement of the B driving block, making the operation of the B adjustment unit more stable.

[0023] Preferably, the pressing unit includes an electric linear push rod, a positioning plate is fixed on the side of the pressure plate facing the movable plate, the positioning plate can slide on the inner side of the T-shaped sliding groove, a connecting block is fixed on the upper side of the positioning plate, the connecting block is fixedly connected to the upper side of the pressure plate, a C-shaped positioning groove is provided on the upper side of the connecting block, a C-shaped connecting plate is slid on the inner side of the C-shaped positioning groove, the C-shaped connecting plate is fixedly connected to the upper side of the movable plate, the electric linear push rod is installed on the inner side of the C-shaped connecting plate, and the shaft end of the electric linear push rod is connected to the upper side of the connecting block.

[0024] By adopting the above technical solution, the pressing unit can move up and down with the pressing plate, and the pressing plate can press the workpiece on the lower mold, thereby fixing the workpiece on the lower mold and improving the installation efficiency of the workpiece.

[0025] The utility model proposes a high-speed punching machine that is convenient for fixing workpieces, and has the following beneficial effects:

[0026] 1. By setting the movable plate, connecting shell, pressing plate, adjusting bar, A adjusting unit, B adjusting unit, pressing unit and A connecting plate, the workpiece can be automatically clamped and fixed at the center of the high-speed punching machine, which reduces the labor intensity of the personnel, reduces the adjustment time during installation, and improves the efficiency of clamping and fixing the workpiece.

[0027] 2. By setting the movable plate, connecting shell, adjusting bar, A adjusting unit, B adjusting unit and A connecting plate, workpieces of different sizes can be clamped, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the front three-dimensional structure of a high-speed punching machine that is convenient for fixing workpieces proposed by the utility model;

[0029] Figure 2 The utility model proposed Figure 1 A schematic diagram of the partially enlarged three-dimensional structure of area A in the middle;

[0030] Figure 3 The utility model proposed Figure 2 A schematic diagram of the partially enlarged three-dimensional structure of area B in the middle;

[0031] Figure 4 The utility model proposed Figure 1 Schematic diagram of the partially enlarged three-dimensional structure of the middle C area;

[0032] Figure 5 The utility model proposed Figure 4 Schematic diagram of the partially enlarged three-dimensional structure of the middle D area;

[0033] Figure 6 The utility model proposed Figure 1 Schematic diagram of the partially enlarged three-dimensional structure of the middle E area.

[0034] In the figure: 1. High-speed punching machine body; 2. Moving plate; 3. Connecting shell; 4. Pressing plate; 5. Adjusting bar; 6. A adjusting unit; 61. Double-ended electric linear slide; 62. A driving block; 63. Limiting plate; 64. Positioning rod; 65. Mounting block; 7. B adjusting unit; 71. Motor; 72. Sliding block; 73. B driving block; 74. Screw; 75. Support block; 76. Positioning block; 77. Positioning bar; 8. Pressing unit; 81. Electric linear push rod; 82. Positioning plate; 83. Connecting block; 84. C-type connecting plate; 9. Lower mold; 10. Punching mold; 11. A connecting plate. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Reference Figure 1-6 A high-speed punching machine that is convenient for fixing a workpiece includes a high-speed punching machine body 1, a lower die 9 and a punching die 10. The lower die 9 is located on the lower side of the punching die 10. The punching die 10 is detachably connected to the upper shaft end of the high-speed punching machine body 1. The lower die 9 is detachably connected to the upper platform of the high-speed punching machine body 1. The high-speed punching machine body 1 is connected to the power supply and the controller through a wire. The high-speed punching machine body 1, the lower die 9 and the punching die 10 constitute the high-speed punching machine as a whole for processing. It also includes: two movable plates 2, two connecting shells 3, two pressing plates 4, four adjusting bars 5, an A adjusting unit 6, two B adjusting units 7, and two pressing units 8;

[0037] A mounting groove is provided on the high-speed punch body 1, and the movable plate 2 is located on the upper side of the lower mold 9 and can slide inside the mounting groove;

[0038] The A adjustment unit 6 is located between the two movable plates 2 and the lower mold 9. The A adjustment unit 6 includes two double-end electric linear slides 61. Both movable ends of the double-end electric linear slides 61 are equipped with A driving blocks 62. The A driving block 62 is located on the front and rear sides of the lower mold 9 and the A driving block 62 is fixedly connected to the lower side of the movable plate 2. The two double-end electric linear slides 61 are installed on the front and rear sides of the lower mold 9. The front and rear sides of the lower mold 9 are fixed with limiting plates 63. The A driving block 62 is provided with an A sliding groove on the side facing the lower mold 9. The limiting plate 63 can slide in the inside of the A sliding groove. The limiting plate 63 is provided with a positioning rod 64 on the side away from the lower mold 9. An A positioning hole is provided on one side of the A driving block 62. The positioning rod 64 can slide in the inside of the A positioning hole. The limiting plate 63 cooperates with the positioning rod 64 to move the A driving block 62. The guiding and limiting functions make the movement of the A driving block 62 more stable. At the same time, the positioning rod 64 guides and limits the movable plate 2 through the A driving block 62, making the movement of the movable plate 2 more stable, thereby improving the stability of the device operation. Mounting blocks 65 are fixed on the left and right sides of the positioning rod 64. The mounting blocks 65 are detachably connected to the lower mold 9. The double-end electric linear slide 61 is connected to the high-speed punching machine body 1 through a wire. The double-end electric linear slide 61 moves the two A driving blocks 62 in opposite directions, allowing the A driving block 62 to move the two movable plates 2 on the lower mold 9 in opposite directions, allowing the two movable plates 2 to clamp the workpiece in the middle, thereby realizing automatic and rapid clamping of workpieces of different sizes, thereby improving the installation efficiency of the workpiece and the applicability of the device.

[0039] The connecting shell 3 is located between the upper side of the lower mold 9 and the two movable plates 2;

[0040] The pressing plate 4 is located between the two movable plates 2. A T-shaped sliding groove is provided on the upper side of the movable plate 2. The pressing plate 4 can slide inside the T-shaped sliding groove.

[0041] The pressing unit 8 is located between the pressing plate 4 and the movable plate 2. The pressing unit 8 includes an electric linear push rod 81. A positioning plate 82 is fixed on the side of the pressing plate 4 facing the movable plate 2. The positioning plate 82 can slide inside the T-shaped sliding groove. The positioning plate 82 guides and limits the movement of the pressing plate 4 in the T-shaped sliding groove, making the movement of the pressing plate 4 more stable. A connecting block 83 is fixed on the upper side of the positioning plate 82. The connecting block 83 is fixedly connected to the upper side of the pressing plate 4. A C-shaped positioning groove is provided on the upper side of the connecting block 83. A C-shaped connecting plate 84 slides inside the C-shaped positioning groove. The C-shaped connecting plate The plate 84 guides and limits the up and down movement of the connecting block 83, making the movement of the connecting block 83 more stable. The C-shaped connecting plate 84 is fixedly connected to the upper side of the movable plate 2, and the electric linear push rod 81 is installed on the inner side of the C-shaped connecting plate 84. The shaft end of the electric linear push rod 81 is connected to the upper side of the connecting block 83. The electric linear push rod 81 moves up and down in the T-shaped sliding groove with the limiting plate 82 and the pressure plate 4 through the connecting block 83, so that the pressure plate 4 can press the workpiece on the lower mold 9, thereby realizing automatic fixation of the workpiece and improving the installation efficiency of the workpiece.

[0042] The adjusting bar 5 is located between the two movable plates 2 and on the left and right sides of the connecting shell 3 and the front and rear sides of the pressing plate 4. A connecting plates 11 are slidably provided on both the left and right ends of the inner side of the connecting shell 3. The connecting plates 11 are fixedly connected to the side of the adjusting bar 5 facing the pressing plate 4. When the A adjusting unit 6 moves the movable plate 2 on the lower mold 9, the movable plate 2 will move together with the adjusting bar 5 through the B adjusting unit 7 described below. The adjusting bar 5 will move with the connecting plates 11 on the connecting shell 3, so that there will be no interference in the movement of the A adjusting unit 6 and the B adjusting unit 7 described below, and the movement of the movable plate 2 is guided, thereby improving the stability of the device operation.

[0043] The B adjustment unit 7 is located between the two adjustment bars 5 and the movable plate 2. The B adjustment unit 7 includes a motor 71. One side of the movable plate 2 is provided with two sliding holes. A sliding block 72 slides inside the sliding hole. The sliding block 72 is fixedly connected to the side of the adjustment bar 5 away from the connecting shell 3. The movable plate 2 is provided with four A positioning grooves on the side facing the connecting shell 3. Two positioning blocks 76 are fixed on the side of the adjustment bar 5 facing the movable plate 2. The positioning blocks 76 can slide inside the A positioning grooves. The positioning blocks 76 guide the movement of the adjustment bar 5 on the movable plate 2, making the movement of the adjustment bar 5 more stable. A B driving block 73 is fixed on the side away from the adjustment bar 5. The B driving block 73 is provided with two B positioning grooves on the side facing the movable plate 2. A positioning bar 77 slides inside the B positioning groove. The positioning bar 77 is fixedly connected to one side of the movable plate 2. The positioning bar 77 guides the movement of the B driving block 73 on the movable plate 2, making the movement of the B driving block 73 more stable. A screw 74 is provided on the side of the movable plate 2 away from the connecting shell 3, and a threaded hole is provided on one side of the B driving block 73. The screw rod 74 is connected to the inner side of the threaded hole by threaded engagement transmission, and the outer ends of the screw rod 74 are rotated with support blocks 75, which are fixedly connected to the movable plate 2, and the two B drive blocks 73 are located between the two support blocks 75. The shaft end of the motor 71 is connected to the front end of the screw rod 74, and the motor 71 is installed on one side of the movable plate 2 and the motor 71 is connected to the high-speed punching machine body 1 through a wire. The motor 71 drives the screw rod 74 to rotate on the two corresponding support blocks 75. The threaded holes in the two B drive blocks 73 corresponding to the screw 74 are in opposite directions, and cooperate with the bidirectional thread on the outside of the screw rod 74. As the screw 74 rotates, under the action of the thread, the two B drive blocks 73 move in opposite directions on the screw 74, and the drive block 73 moves together with the adjustment bar 5 through the sliding block 72. The adjustment bar 5 moves together with the corresponding connecting shell 3 through the A connecting plate 11, realizing automatic adjustment to move the two connecting shells 3 on the lower mold 9, automatically clamping the workpiece, and improving the installation efficiency of the workpiece and the applicability of the device;

[0044] How it works:

[0045] Place the workpiece on the lower mold 9, and the B adjustment unit 7 moves with the adjustment bar 5, allowing the adjustment bar 5 to move in opposite directions in the front and rear directions on the lower mold 9 with the connecting shell 3 through the A connecting plate 11 to clamp the workpiece. Then the A adjustment unit 6 moves with the movable plate 2 in opposite directions in the left and right directions on the lower mold 9. At the same time, the adjustment bar 5 will move with the movable plate 2, and move with the A connecting plate 11 in the connecting shell 3, allowing the movable plate 2 to clamp the workpiece, and cooperate with the B adjustment unit 7 to clamp the workpiece in the center of the lower mold 9 from the front, back, left and right directions. Then the pressing unit 8 presses the workpiece with the pressing plate 4 to achieve rapid clamping and fixation of the workpiece.

[0046] In the description of this patent, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, for example, to mean a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. A person skilled in the art will understand the specific meanings of the above terms in this patent in specific circumstances.

[0047] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-speed punching machine for facilitating workpiece fixation, comprising a high-speed punching machine body (1), a lower die (9) and a punching die (10), wherein the lower die (9) is located at the lower side of the punching die (10), the punching die (10) is detachably connected to the upper shaft end of the high-speed punching machine body (1), the lower die (9) is detachably connected to the upper platform of the high-speed punching machine body (1), and the high-speed punching machine body (1) is connected to a power supply and a controller via a wire, characterized in that: Also includes: Two movable plates (2), a mounting groove is provided on the high-speed punch body (1), and the movable plates (2) are located on the upper side of the lower mold (9) and can slide inside the mounting groove; Two connecting shells (3), the connecting shells (3) are located between the upper side of the lower mold (9) and the two movable plates (2); Two pressing plates (4), the pressing plates (4) being located between the two movable plates (2), the upper sides of the movable plates (2) being provided with T-shaped sliding grooves, the pressing plates (4) being able to slide inside the T-shaped sliding grooves; Four adjustment bars (5), the adjustment bars (5) being located between the two movable plates (2) and on the left and right sides of the connecting shell (3) and the front and rear sides of the pressing plate (4); A connecting plates (11) are slidably provided on both the left and right ends of the inner side of the connecting shell (3); the A connecting plates (11) are fixedly connected to the side of the adjustment bars (5) facing the pressing plate (4); A adjusting unit (6), the A adjusting unit (6) is located between the two movable plates (2) and the lower mold (9); Two B adjustment units (7), wherein the B adjustment units (7) are located between the two adjustment bars (5) and the movable plate (2); Two pressing units (8), wherein the pressing units (8) are located between the pressing plate (4) and the moving plate (2).

2. A high-speed punching machine for facilitating workpiece fixation according to claim 1, characterized in that: The A adjustment unit comprises two double-end electric linear slides (61), and both movable ends of the double-end electric linear slides (61) are equipped with A driving blocks (62), and the A driving blocks (62) are located on the front and rear sides of the lower mold (9) and are fixedly connected to the lower side of the movable plate (2). The two double-end electric linear slides (61) are installed on the front and rear sides of the lower mold (9), and the front and rear sides of the lower mold (9) are fixed with limiting plates (63). The A driving block (62) is provided with an A sliding groove on the side facing the lower mold (9), and the limiting plate (63) can slide inside the A sliding groove. The double-end electric linear slides (61) are connected to the high-speed punching machine body (1) through a wire.

3. A high-speed punching machine for facilitating workpiece fixation according to claim 2, characterized in that: A positioning rod (64) is provided on the side of the limiting plate (63) away from the lower mold (9), and an A positioning hole is provided on one side of the A driving block (62). The positioning rod (64) can slide inside the A positioning hole. Mounting blocks (65) are fixed on the left and right sides of the positioning rod (64), and the mounting blocks (65) are detachably connected to the lower mold (9).

4. A high-speed punching machine for facilitating workpiece fixation according to claim 1, characterized in that: The B adjustment unit (7) includes a motor (71), two sliding holes are provided on one side of the movable plate (2), a sliding block (72) slides inside the sliding hole, the sliding block (72) is fixedly connected to the side of the adjustment bar (5) away from the connecting shell (3), a B driving block (73) is fixed on the side of the sliding block (72) away from the adjustment bar (5), a screw rod (74) is provided on the side of the movable plate (2) away from the connecting shell (3), a threaded hole is provided on one side of the B driving block (73), the screw rod (74) is connected to the inner side of the threaded hole through threaded engagement transmission, support blocks (75) are rotatably provided at both ends of the outer side of the screw rod (74), the support block (75) is fixedly connected to the movable plate (2), the two B driving blocks (73) are located between the two support blocks (75), the shaft end of the motor (71) is connected to the front end of the screw rod (74), the motor (71) is installed on one side of the movable plate (2), and the motor (71) is connected to the high-speed punching machine body (1) through a wire.

5. A high-speed punching machine for facilitating workpiece fixation according to claim 4, characterized in that: The movable plate (2) is provided with four A positioning grooves on the side facing the connecting shell (3), the B driving block (73) is provided with two B positioning grooves on the side facing the movable plate (2), and the adjustment bar (5) is fixed with two positioning blocks (76) on the side facing the movable plate (2), the positioning blocks (76) can slide inside the A positioning grooves, and a positioning bar (77) is slid inside the B positioning grooves, and the positioning bar (77) is fixedly connected to one side of the movable plate (2).

6. A high-speed punching machine for facilitating workpiece fixation according to claim 1, characterized in that: The pressing unit (8) includes an electric linear push rod (81), a positioning plate (82) is fixed on the side of the pressing plate (4) facing the movable plate (2), the positioning plate (82) can slide inside the T-shaped sliding groove, a connecting block (83) is fixed on the upper side of the positioning plate (82), the connecting block (83) is fixedly connected to the upper side of the pressing plate (4), a C-shaped positioning groove is provided on the upper side of the connecting block (83), a C-shaped connecting plate (84) slides inside the C-shaped positioning groove, the C-shaped connecting plate (84) is fixedly connected to the upper side of the movable plate (2), the electric linear push rod (81) is installed on the inner side of the C-shaped connecting plate (84), and the shaft end of the electric linear push rod (81) is connected to the upper side of the connecting block (83).

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