Plate spring support positioning and clamping device

Abstract

The utility model belongs to the technical field of plate spring support positioning, and particularly relates to a plate spring support positioning and clamping device. The device comprises a vertical plate, an air cylinder and a positioning plate, the air cylinder is installed on the side face of the vertical plate, the positioning plate is installed at the end of a piston rod of the air cylinder, a plurality of cylindrical pins are arranged on the side, away from the air cylinder, of the positioning plate and used for being inserted into through holes in the plate spring support for positioning, and the piston rod of the air cylinder stretches out and draws back to drive the positioning plate to move. The positioning plate is inserted into the through hole in the plate spring support through the cylindrical pin to drive the plate spring support to move and be tightly attached to the axle housing. The device solves the problems that an existing positioning mechanism cannot reduce a gap between a plate spring support and an axle housing, cannot enable the plate spring support to be completely attached to the axle housing, cannot position the plate spring support and is low in working efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of leaf spring drag positioning, and particularly relates to a leaf spring drag positioning clamping device. Background Art

[0002] In order to reduce the stress on the weld of the leaf spring drag after welding the leaf spring drag and the bridge housing, the assembly clearance between the leaf spring drag and the bridge housing needs to be ensured during welding. At the same time, the angle of the leaf spring drag relative to the large flange surface of the middle section of the bridge housing is the loading size. If it exceeds the tolerance, the OEM will not be able to assemble it normally. Therefore, it is necessary to strictly control the assembly clearance between the leaf spring drag and the bridge housing. The assembly clearance refers to the gap value formed after the leaf spring drag and the bridge housing are clamped.

[0003] At present, the positioning mechanism in the industry mainly adopts the spring floating method to reduce the gap between the leaf spring drag and the bridge housing, but the elastic force is small and the reliability is poor. It cannot ensure the complete fit between the leaf spring drag and the bridge housing, and the quality of the welding between the leaf spring drag and the bridge housing cannot be guaranteed. In addition, because the spring is used in the positioning process, it is not easy to align the positioning mechanism and the leaf spring drag hole under the action of the elastic force, which makes the operation inconvenient and affects the work efficiency. Utility Model Content

[0004] The utility model provides a leaf spring drag positioning clamping device, which solves the problems that the positioning mechanism in the prior art cannot reduce the gap between the leaf spring drag and the bridge housing, cannot make the leaf spring drag and the bridge housing fully fit, cannot position the leaf spring drag, and has low working efficiency.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A leaf spring drag positioning and clamping device comprises a vertical plate, a cylinder and a positioning plate, wherein the cylinder is mounted on the side of the vertical plate, the positioning plate is mounted on the end of the piston rod of the cylinder, a plurality of cylindrical pins are arranged on the side of the positioning plate away from the cylinder, the cylindrical pins are used to be inserted into the through holes on the leaf spring drag for positioning, the piston rod of the cylinder drives the positioning plate to move by telescoping, the positioning plate is inserted into the through holes on the leaf spring drag through the cylindrical pins, drives the leaf spring drag to move and adheres tightly to the bridge housing.

[0007] Through the above technical scheme, the piston rod of the cylinder can push the positioning plate to contact the leaf spring drag by telescoping, and the cylindrical pin is inserted into the through hole of the leaf spring drag to improve the accuracy of the positioning plate on the leaf spring drag, and improve the stability and firmness of the positioning plate pushing the leaf spring drag. The positioning plate drives the leaf spring drag to move through the cylindrical pin, thereby adjusting the gap between the leaf spring drag and the bridge housing, so that the leaf spring drag and the bridge housing are fully fitted. The whole process is controlled by the cylinder, which is convenient and fast to operate, with high work efficiency. The clamping force of the positioning plate on the leaf spring drag can also be controlled, and the operation is flexible.

[0008] Optionally, it also includes a fixing frame, which is installed on the side of the vertical plate, the cylinder is fixedly connected to the inside of the fixing frame, the end of the piston rod of the cylinder passes through the fixing frame and is fixedly connected to the positioning plate, a connecting plate is arranged between the fixing frame and the positioning plate, the connecting plate and the positioning plate are connected by bolts, and a plurality of guide columns arranged in parallel and spaced apart are installed between the fixing frame and the connecting plate, one end of the guide column is fixedly connected to the fixing frame, and the other end of the guide column passes through the connecting plate and contacts with the side of the positioning plate.

[0009] Through the above technical scheme, the fixing frame can fix the cylinder, improve the stability between the cylinder and the vertical plate, and also improve the stability of the cylinder during operation. The guide column can improve the accuracy of the piston rod of the cylinder in pushing the positioning plate to move, and play a guiding role for the piston rod and the positioning plate of the cylinder, which is conducive to the positioning plate to be able to quickly and accurately contact and position with the leaf spring drag, and is conducive to the rapid insertion of the cylindrical pin into the through hole of the leaf spring drag.

[0010] Optionally, an angle adjustment mechanism is installed on the side of the fixing frame, and the angle adjustment mechanism includes an angle adjustment plate, an adjustment column and a fixing bolt. The angle adjustment plate is located between the fixing plate and the vertical plate, and the angle adjustment plate is fixedly connected to the side of the fixing frame. The angle adjustment plate is provided with a plurality of arc holes A and positioning holes A, and the vertical plate is provided with a plurality of arc holes B and positioning holes B. The arc holes A correspond to the positioning holes B one-to-one, and the arc holes B correspond to the positioning holes A one-to-one. One end of the adjustment column is fixedly connected to the fixing frame, and the other end of the adjustment column passes through the arc hole A and the positioning hole B in sequence. The fixing bolt passes through the arc hole B and the positioning hole A in sequence, and the fixing bolt is used to fix the vertical plate to the angle adjustment plate.

[0011] Through the above technical solution, the adjusting column can be inserted into the arc hole A and the positioning hole B to adjust the angle between the fixing frame and the vertical plate, so that the direction of the piston rod of the cylinder can be changed, so that the cylinder and the positioning plate can meet the positioning requirements of the leaf spring dragging position at different angles, thereby improving the versatility of the entire device.

[0012] Optionally, a hinge telescopic mechanism is arranged between the top of the fixed frame and the top of the connecting plate, and the hinge telescopic mechanism includes a fixed seat A, a fixed seat B, a bent rod and a connecting rod. The fixed seat A is fixedly connected to the top of the fixed frame, and the fixed seat B is fixedly connected to the top of the connecting plate. One end of the bent rod is hinged to the top of the fixed seat A through a pin shaft, and the other end of the bent rod extends upward. One end of the connecting rod is hinged to the top of the fixed seat B through a pin shaft, and the other end of the connecting rod is hinged to the corner of the bent rod through a pin shaft. The bent rod adjusts the distance between the connecting plate and the cylinder by moving.

[0013] Through the above technical solution, the bending rod and the connecting rod cooperate to adjust the distance between the fixing frame and the connecting plate, so that when the cylinder is not started for ventilation, the end of the piston rod of the cylinder can push the cylindrical pin to be inserted into the through hole of the leaf spring drag to position the leaf spring drag, which is beneficial to the subsequent cylinder ventilation start-up, and can quickly drive the leaf spring drag to contact and position with the bridge housing.

[0014] Optionally, the vertical plate is L-shaped, a triangular reinforcement plate is installed at the inner corner of the L-shape of the vertical plate, and a plurality of mounting holes are arranged at the bottom of the vertical plate.

[0015] Through the above technical solution, the triangular reinforcement plate can improve the firmness and stability of the vertical plate, and the mounting holes are conducive to connecting and sharing the vertical plate with other components, thereby improving the flexibility and versatility of the vertical plate.

[0016] Optionally, the positioning plate is made of magnet.

[0017] Through the above technical solution, the positioning plate has magnetic force, which can ensure that the positioning plate is adsorbed on the leaf spring drag, thereby improving the accuracy of the positioning plate in positioning the leaf spring drag.

[0018] After adopting the above technical solution, the beneficial effects of the utility model are:

[0019] The device in the utility model positions the leaf spring drag by the positioning plate and the cylindrical pin, thereby improving the positioning accuracy of the leaf spring drag, and the cylinder pushes the positioning plate and the leaf spring drag to be positioned and fixed, and can flexibly adjust the gap between the leaf spring drag and the bridge housing, so that the leaf spring drag can be completely fitted with the bridge housing, which is beneficial to the subsequent welding of the leaf spring drag and the bridge housing, and not only improves the reliability of positioning and clamping between the leaf spring drag and the bridge housing, but also improves the welding accuracy between the leaf spring drag and the bridge housing, and is easy to operate and has high work efficiency. The guide column can provide guidance for the movement of the piston rod of the cylinder, thereby improving the stability and accuracy of positioning the leaf spring drag during the movement of the positioning plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 This is a schematic diagram of the structure of the entire device in the embodiment cooperating with the leaf spring drag Figure Ⅰ ;

[0022] Figure 2 This is a schematic diagram of the structure of the entire device in the embodiment cooperating with the leaf spring drag Figure II ;

[0023] Figure 3 This is a schematic diagram of the structure of the entire device in the embodiment cooperating with the leaf spring drag Figure III (excluding fixing bolts);

[0024] Figure 4 This is a schematic diagram of the structure of the entire device in the embodiment cooperating with the leaf spring drag Figure IV (excluding vertical panels);

[0025] Figure 5 It is a schematic diagram of the structure of the entire device in the embodiment.

[0026] Explanation of the accompanying drawings: 1. Vertical plate; 2. Fixed frame; 3. Cylinder; 4. Connecting plate; 5. Positioning plate; 6. Guide column; 7. Cylindrical pin; 8. Angle adjustment plate; 9. Adjusting column; 10. Arc hole A; 11. Arc hole B; 12. Positioning hole A; 13. Positioning hole B; 14. Fixed seat A; 15. Fixed seat B; 16. Bent rod; 17. Connecting rod; 18. Triangular reinforcement plate; 19. Mounting hole; 20. Leaf spring drag; 21. Fixing bolt. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The embodiment of the present application discloses a leaf spring drag positioning clamping device.

[0029] Example

[0030] according to Figures 1 to 5As shown, a leaf spring drag positioning clamping device includes a vertical plate 1, a fixing frame 2, a cylinder 3, a connecting plate 4, a positioning plate 5, an angle adjustment mechanism and a hinge telescopic mechanism. The vertical plate 1 is L-shaped, and a triangular reinforcing plate 18 is installed at the inner corner of the L-shape of the vertical plate 1. A plurality of mounting holes 19 are provided at the bottom of the vertical plate 1. The positioning plate 5 is made of a magnet.

[0031] The fixing frame 2 is installed on the side of the vertical plate 1, and the cylinder 3 is fixedly connected to the inside of the fixing frame 2. The end of the piston rod of the cylinder 3 passes through the fixing frame 2 and is fixedly connected to the positioning plate 5. A connecting plate 4 is arranged between the fixing frame 2 and the positioning plate 5. The connecting plate 4 and the positioning plate 5 are connected by bolts. Two parallel guide columns 6 are installed between the fixing frame 2 and the connecting plate 4. The piston rod of the cylinder 3 is located between the two guide columns 6. One end of the guide column 6 is fixedly connected to the fixing frame 2, and the other end of the guide column 6 passes through the connecting plate 4 and contacts the side of the positioning plate 5. Five cylindrical pins 7 are arranged on the side of the positioning plate 5 away from the cylinder 3, four of which form a rectangle, and the fifth cylindrical pin 7 is located at the center of the four cylindrical pins 7. The cylindrical pin 7 is used to be inserted into the through hole on the leaf spring drag 20 for positioning.

[0032] The angle adjustment mechanism includes an angle adjustment plate 8, an adjustment column 9 and a fixing bolt 21. The angle adjustment plate 8 is located between the fixing plate and the vertical plate 1. The angle adjustment plate 8 is fixedly connected to the side of the fixing frame 2. The angle adjustment plate 8 is provided with a plurality of arc holes A10 and positioning holes A12. The vertical plate 1 is provided with a plurality of arc holes B11 and positioning holes B13. The arc holes A10 correspond to the positioning holes B13 one by one, and the arc holes B11 correspond to the positioning holes A12 one by one. One end of the adjustment column 9 is fixedly connected to the fixing frame 2. The other end of the adjustment column 9 passes through the arc holes A10 and the positioning holes B13 in sequence. The adjustment column 9 is used to adjust the angle between the vertical plate 1 and the angle adjustment plate 8 and guide. The fixing bolt 21 passes through the arc holes B11 and the positioning holes A12 in sequence. The fixing bolt 21 is used to fix the vertical plate 1 to the angle adjustment plate 8.

[0033] A hinge telescopic mechanism is provided between the top of the fixing frame 2 and the top of the connecting plate 4, and the hinge telescopic mechanism includes a fixing seat A14, a fixing seat B15, a bent rod 16 and a connecting rod 17. The fixing seat A14 is fixedly connected to the top of the fixing frame 2, the fixing seat B15 is fixedly connected to the top of the connecting plate 4, one end of the bent rod 16 is hinged to the top of the fixing seat A14 through a pin, and the other end of the bent rod 16 extends upward, one end of the connecting rod 17 is hinged to the top of the fixing seat B15 through a pin, and the other end of the connecting rod 17 is hinged to the top of the fixing seat B15 through a pin. The end is hinged at the corner of the bent rod 16 through a pin shaft. The bent rod 16 cooperates with the connecting rod 17 to adjust the distance between the connecting plate 4 and the cylinder 3 by rotating, so that the cylinder 3 can drive the piston rod end of the cylinder 3 to push the positioning plate 5 to move when there is no ventilation and starting. The positioning plate 5 moves in the direction of the leaf spring drag 20 and drives the cylindrical pin 7 to insert into the through hole on the leaf spring drag 20. After the cylinder 3 is ventilated and started, the piston rod end of the cylinder 3 extends out, quickly drives the leaf spring drag 20 to move and fits tightly against the bridge housing.

[0034] The positioning plate 5 and the cylindrical pin 7 position the leaf spring drag 20, which improves the positioning accuracy of the leaf spring drag 20. The cylinder 3 pushes the positioning plate 5 to contact and fix the leaf spring drag 20, and can flexibly adjust the gap between the leaf spring drag 20 and the bridge housing, so that the leaf spring drag 20 can be completely fitted with the bridge housing, which is conducive to the subsequent welding of the leaf spring drag 20 and the bridge housing, which not only improves the reliability of positioning and clamping between the leaf spring drag 20 and the bridge housing, but also improves the welding accuracy between the leaf spring drag 20 and the bridge housing, is easy to operate, and has high work efficiency. The fixing frame 2 can position the leaf spring drag 20 and the bridge housing. The cylinder 3 is fixed to improve the stability between the cylinder 3 and the vertical plate 1, and also to improve the stability of the cylinder 3 during operation. The guide column 6 can provide guidance for the movement of the piston rod of the cylinder 3. The guide column 6 can improve the accuracy of the piston rod of the cylinder 3 in the process of pushing the positioning plate 5 to move, and improve the stability and accuracy of positioning the leaf spring drag 20 during the movement of the positioning plate 5, which is conducive to the positioning plate 5 to quickly and accurately contact and position with the leaf spring drag 20, and is conducive to the cylindrical pin 7 to quickly insert into the through hole of the leaf spring drag 20. The bent rod 16 cooperates with the connecting rod 17 to adjust the distance between the fixing frame 2 and the connecting plate 4, so that the piston rod of the cylinder 3 can be extended when not ventilated, and the convenience of extending the piston rod of the cylinder 3 in the non-ventilated state is improved. The triangular reinforcing plate 18 can improve the firmness and stability of the vertical plate 1, and the mounting hole 19 is conducive to connecting and sharing the vertical plate 1 with other components, improving the flexibility and versatility of the vertical plate 1. The positioning plate 5 has magnetic force, which can ensure that the positioning plate 5 is adsorbed on the leaf spring tug 20, thereby improving the accuracy of the positioning plate 5 in positioning the leaf spring tug 20. The adjusting column 9 can adjust the angle between the fixing frame 2 and the vertical plate 1 by inserting into the arc hole A10 and the positioning hole B13, so that the direction of the piston rod of the cylinder 3 can be changed, so that the cylinder 3 and the positioning plate 5 can meet the positioning requirements of the leaf spring tug 20 at different angles, thereby improving the versatility of the entire device.

[0035] In short, the piston rod of the cylinder 3 can push the positioning plate 5 to contact the leaf spring drag 20 by telescoping, and the cylindrical pin 7 is inserted into the through hole of the leaf spring drag 20 to improve the accuracy of the positioning plate 5 on the leaf spring drag 20, and improve the stability and firmness of the positioning plate 5 pushing the leaf spring drag 20. The positioning plate 5 drives the leaf spring drag 20 to move through the cylindrical pin 7, thereby adjusting the gap between the leaf spring drag 20 and the bridge housing, so that the leaf spring drag 20 and the bridge housing are completely fitted. The whole process is controlled by the cylinder 3, which is convenient and fast to operate, with high work efficiency. The clamping force of the positioning plate 5 on the leaf spring drag 20 can also be controlled, and the operation is flexible.

[0036] Working principle:

[0037] The leaf spring drag 20 is sleeved on the middle section of the bridge housing, and the middle section of the bridge housing is clamped and fixed (this part does not belong to the protection content of this patent and is not reflected). When the cylinder 3 is not ventilated, the hinge telescopic mechanism is manually operated to rotate the end of the bent rod 16. The bent rod 16 cooperates with the connecting rod 17 to adjust the distance between the cylinder 3 and the connecting plate 4 by rotating, so that the end of the piston rod of the cylinder 3 can push the cylindrical pin 7 on the positioning plate 5 to align with the through hole on the leaf spring drag 20, thereby realizing the preliminary positioning of the leaf spring drag 20. The cylinder 3 is started, and the piston rod of the cylinder 3 is extended. The extension of the piston rod of the cylinder 3 quickly drives the positioning plate 5 to move in the direction of the leaf spring drag 20. Under the action of the cylindrical pin 7, the positioning plate 5 pushes the leaf spring drag 20 to move, thereby adjusting the gap between the leaf spring drag 20 and the middle section of the bridge housing, so that the leaf spring drag 20 is completely fitted with the middle section of the bridge housing, which is conducive to the subsequent welding of the leaf spring drag 20 and the middle section of the bridge housing.

[0038] If the positioning angle of the leaf spring tug 20 is tilted, the angle between the angle adjustment plate 8 and the vertical plate 1 can be adjusted, and the adjustment column 9 plays a role in guiding and preliminarily positioning the angle between the angle adjustment plate 8 and the vertical plate 1. When the angle between the angle adjustment plate 8 and the vertical plate 1 is fixed, the angle adjustment plate 8 and the vertical plate 1 are fixedly connected by tightening the fixing bolts 21. The adjustment column 9 cooperates with the fixing bolts 21 to fix the angle position of the angle adjustment plate 8 and the vertical plate 1, thereby improving the firmness and stability of the connection between the angle adjustment plate 8 and the vertical plate 1. By changing the angle between the fixing frame 2 and the vertical plate 1, the direction of the adjusting cylinder 3, the positioning plate 5 and the cylindrical pin 7 can be changed, so that the cylinder 3 pushes the positioning plate 5 to position and clamp the leaf spring tug 20 at different angles.

[0039] In the description of the present utility model, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A leaf spring drag positioning clamping device, characterized in that: The invention comprises a vertical plate (1), a cylinder (3) and a positioning plate (5), wherein the cylinder (3) is mounted on the side of the vertical plate (1), the positioning plate (5) is mounted on the end of the piston rod of the cylinder (3), a plurality of cylindrical pins (7) are arranged on the side of the positioning plate (5) away from the cylinder (3), the cylindrical pins (7) are used to be inserted into the through holes on the leaf spring drag (20) for positioning, the piston rod of the cylinder (3) drives the positioning plate (5) to move by telescoping, the positioning plate (5) is inserted into the through holes on the leaf spring drag (20) through the cylindrical pins (7), drives the leaf spring drag (20) to move and is tightly attached to the bridge housing.

2. A leaf spring drag positioning clamping device according to claim 1, characterized in that: It also includes a fixing frame (2), the fixing frame (2) is installed on the side of the vertical plate (1), the cylinder (3) is fixedly connected to the inside of the fixing frame (2), the piston rod end of the cylinder (3) passes through the fixing frame (2) and is fixedly connected to the positioning plate (5), a connecting plate (4) is arranged between the fixing frame (2) and the positioning plate (5), the connecting plate (4) and the positioning plate (5) are connected by bolts, and a plurality of parallel and spaced guide columns (6) are installed between the fixing frame (2) and the connecting plate (4), one end of the guide column (6) is fixedly connected to the fixing frame (2), and the other end of the guide column (6) passes through the connecting plate (4) and contacts the side of the positioning plate (5).

3. A leaf spring drag positioning clamping device according to claim 2, characterized in that: An angle adjustment mechanism is installed on the side of the fixing frame (2), and the angle adjustment mechanism comprises an angle adjustment plate (8), an adjustment column (9) and a fixing bolt (21). The angle adjustment plate (8) is located between the fixing plate and the vertical plate (1). The angle adjustment plate (8) is fixedly connected to the side of the fixing frame (2). The angle adjustment plate (8) is provided with a plurality of arc holes A (10) and positioning holes A (12). The vertical plate (1) is provided with a plurality of arc holes B (11) and positioning holes B (13). A (10) corresponds to the positioning hole B (13) one by one, the arc-shaped hole B (11) corresponds to the positioning hole A (12) one by one, one end of the adjusting column (9) is fixedly connected to the fixing frame (2), the other end of the adjusting column (9) passes through the arc-shaped hole A (10) and the positioning hole B (13) in sequence, the fixing bolt (21) passes through the arc-shaped hole B (11) and the positioning hole A (12) in sequence, and the fixing bolt (21) is used to fix the vertical plate (1) and the angle adjustment plate (8).

4. A leaf spring drag positioning clamping device according to claim 2, characterized in that: A hinge telescopic mechanism is provided between the top of the fixing frame (2) and the top of the connecting plate (4), and the hinge telescopic mechanism comprises a fixing seat A (14), a fixing seat B (15), a bent rod (16) and a connecting rod (17); the fixing seat A (14) is fixedly connected to the top of the fixing frame (2); the fixing seat B (15) is fixedly connected to the top of the connecting plate (4); one end of the bent rod (16) is hinged to the top of the fixing seat A (14) through a pin shaft; the other end of the bent rod (16) extends upward; one end of the connecting rod (17) is hinged to the top of the fixing seat B (15) through a pin shaft; the other end of the connecting rod (17) is hinged to the corner of the bent rod (16) through a pin shaft; the bent rod (16) adjusts the distance between the connecting plate (4) and the cylinder (3) by moving.

5. The leaf spring drag positioning clamping device according to claim 1, characterized in that: The vertical plate (1) is L-shaped, a triangular reinforcing plate (18) is installed at the inner corner of the L-shape of the vertical plate (1), and a plurality of mounting holes (19) are arranged at the bottom of the vertical plate (1).

6. A leaf spring drag positioning clamping device according to claim 1, characterized in that: The positioning plate (5) is made of magnet.

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