Wrench for non-destructive disassembly of smooth outer circle surface based on chicken core chuck principle

Abstract

The utility model discloses a non-destructive disassembly smooth excircle surface wrench based on a chicken core chuck principle, which relates to the technical field of wrenches and comprises a wrench main body, and two sides of the tail end of the wrench main body are in threaded connection with clamping rods. The tail end of the clamping rod drives the flexible pad to make contact with the outer surface of a cylindrical workpiece, then the opening and closing rod rotates along the rotating shaft to be in a closed state, and then the first buckle and the second buckle at the tail end of the opening and closing rod are connected in a clamped mode. After use, a worker only needs to manually press a button, then a second inclined block descends to push a first inclined block to transversely slide, a second buckle is driven by a transmission rod to transversely slide to be separated from a first buckle, and at the moment, under the reset effect of a torsional spring, the cylindrical workpiece is clamped and fixed. And therefore, the opening and closing rod can be quickly opened, and the effect of quickly and nondestructively disassembling the cylindrical workpiece is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wrenches, in particular to a wrench for non-destructive disassembly of a smooth outer cylindrical surface based on the chicken core chuck principle. Background Art

[0002] The working principle of the heart-shaped chuck is based on the two-point or multi-point clamping principle. One of the clamping rods is rigidly supported on the plane to form a supporting surface on the workpiece, and the other two or more clamping rods apply clamping force through coil springs to clamp the workpiece. When clamping the workpiece, the two clamping rods of the chuck clamp the workpiece, and the clamping force and clamping accuracy are adjusted by adjusting the position of the nut. When in use, first select a suitable heart-shaped chuck according to the shape and size of the workpiece, then place the workpiece into the chuck, adjust the clamping force of the chuck so that it is firmly fixed on the chuck, and then perform processing. After processing is completed, release the chuck and take out the workpiece.

[0003] In the prior art, when a clamping rod is used to clamp and fix a cylindrical workpiece, the clamping rod often acts directly on the outer surface of the cylindrical workpiece, causing the clamping force of the clamping rod to cause certain damage to the cylindrical outer surface, thereby causing damage to the workpiece. Utility Model Content

[0004] Based on this, the purpose of the present invention is to provide a non-destructive disassembly wrench for smooth outer cylindrical surfaces based on the principle of a chicken core chuck, so as to solve the technical problem that the clamping force of the clamping rod in the existing technology will cause certain damage to the cylindrical outer surface, thereby causing damage to the workpiece.

[0005] To achieve the above-mentioned object, the utility model provides the following technical solution: a non-destructive disassembly wrench for a smooth outer cylindrical surface based on the chicken core chuck principle, comprising a wrench body, clamping rods are threadedly connected to both sides of the end of the wrench body, and flexible pads are provided at the ends of the two sets of clamping rods, and rotating blocks are fixed to the ends of the clamping rods;

[0006] One side of the end of the wrench body is rotatably connected to an opening and closing rod, and the end of the opening and closing rod is fixed with a first buckle extending into the interior of the wrench body, and the first buckle and the opening and closing rod are fixedly connected by a connecting block, a transmission rod is horizontally slidably connected inside the wrench body, and a second buckle engaged with the first buckle is fixed to the bottom of one end of the transmission rod, a first oblique block is fixed to the bottom of the end of the transmission rod away from the first buckle, and a sliding groove matching the first oblique block, the transmission rod and the second buckle is opened inside the wrench body;

[0007] A protruding top block is fixed on the inner side of the opening and closing rod, and a flexible pad is fixed on the outer side of the protruding top block, and the flexible pad is made of rubber material;

[0008] A second oblique block is longitudinally slidably connected to the inside of the wrench body and matches the first oblique block, and the contact surface between the second oblique block and the first oblique block is an inclined surface;

[0009] A connecting rod penetrating the wrench body is fixed on the top of the second inclined block, and a button is fixed on the top of the connecting rod.

[0010] By adopting the above technical solution, the cylindrical workpiece is placed on the inner side of the flexible pad. First, the staff manually rotates the two sets of clamping rods so that the ends of the clamping rods drive the flexible pads to contact the outer surface of the cylindrical workpiece. Then the opening and closing rod is rotated along the rotating shaft to a closed state, and then the first clip and the second clip at the end of the opening and closing rod are engaged with each other. At this time, since a protruding top block is provided on the inner side of the opening and closing rod, the cylindrical workpiece can be clamped and fixed in cooperation with the two sets of clamping rods. When use is completed, the staff only needs to manually press the button, and then the second inclined block descends and pushes the first inclined block to slide horizontally, thereby driving the second clip to slide horizontally and separate from the first clip through the transmission rod. At this time, under the reset action of the torsion spring, the opening and closing rod can be quickly opened, thereby achieving the effect of rapid and non-destructive disassembly of the cylindrical workpiece.

[0011] Furthermore, a longitudinal sliding groove cooperating with the second inclined block is provided inside the wrench body, and an elastic piece located inside the longitudinal sliding groove is fixed between the bottom of the second inclined block and the wrench body.

[0012] By adopting the above technical solution, the elastic piece plays a role in resetting the second inclined block and the button, making it easier to press and open the button next time.

[0013] Furthermore, the opening and closing rod and the wrench body are rotationally connected via a rotating shaft, and a torsion spring located outside the rotating shaft is fixed between the opening and closing rod and the wrench body.

[0014] By adopting the above technical solution, the torsion spring facilitates the rapid opening of the opening and closing rod, thereby playing the role of rapid disassembly of the workpiece.

[0015] Furthermore, a first guide rod and a second guide rod extending into the interior of the wrench body are fixed to one side of the second buckle and the first bevel respectively, and a guide hole cooperating with the first guide rod and the second guide rod is opened inside the wrench body.

[0016] By adopting the above technical solution, the first guide rod and the second guide rod respectively play a guiding role when the second buckle and the first inclined block slide, making them more stable when sliding.

[0017] To sum up, the utility model mainly has the following beneficial effects: the utility model places the cylindrical workpiece on the inner side of the flexible pad, and first the staff manually rotates the two sets of clamping rods so that the ends of the clamping rods drive the flexible pads to contact the outer surface of the cylindrical workpiece, and then the opening and closing rod is rotated along the rotating shaft to a closed state, and then the first clip and the second clip at the end of the opening and closing rod are engaged and connected with each other. At this time, since a protruding top block is provided on the inner side of the opening and closing rod, the cylindrical workpiece can be clamped and fixed in cooperation with the two sets of clamping rods. When use is completed, the staff only needs to manually press the button, and then the second inclined block descends and pushes the first inclined block to slide horizontally, thereby driving the second clip to slide horizontally and disengage from the first clip through the transmission rod. At this time, under the resetting action of the torsion spring, the opening and closing rod can be quickly opened, thereby achieving the effect of rapid and non-destructive disassembly of the cylindrical workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 A magnified view of point A;

[0021] Figure 4 For this utility model Figure 2 Enlarged view of point B.

[0022] In the figure: 1. Wrench body; 2. Clamping rod; 3. Flexible pad; 4. Rotating block; 5. Opening and closing rod; 6. Rotating shaft; 7. Protruding top block; 8. Connecting block; 9. First buckle; 10. Transmission rod; 11. Second buckle; 12. First guide rod; 13. First oblique block; 14. Second oblique block; 15. Elastic sheet; 16. Second guide rod; 17. Button; 18. Torsion spring. DETAILED DESCRIPTION

[0023] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] The following describes an embodiment of the present invention based on its overall structure.

[0025] A non-destructive disassembly wrench with smooth outer cylindrical surface based on the principle of chicken core chuck, such as Figure 1-4As shown, it includes a wrench body 1, both ends of the wrench body 1 are threadedly connected to clamping rods 2, and flexible pads 3 are provided at the ends of the two sets of clamping rods 2, and a rotating block 4 is fixed to the ends of the clamping rods 2;

[0026] One side of the end of the wrench body 1 is rotatably connected to the opening and closing rod 5, and the end of the opening and closing rod 5 is fixed with a first buckle 9 extending into the interior of the wrench body 1, and the first buckle 9 and the opening and closing rod 5 are fixedly connected by a connecting block 8. A transmission rod 10 is slidably connected to the inside of the wrench body 1, and a second buckle 11 engaged with the first buckle 9 is fixed to the bottom of one end of the transmission rod 10, and a first oblique block 13 is fixed to the bottom of the end of the transmission rod 10 away from the first buckle 9, and a slide groove that cooperates with the first oblique block 13, the transmission rod 10 and the second buckle 11 is opened inside the wrench body 1;

[0027] The staff only needs to manually press the button 17, and then the second inclined block 14 descends to push the first inclined block 13 to slide horizontally, thereby driving the second clip 11 to slide horizontally and disengage from the first clip 9 through the transmission rod 10. At this time, under the reset action of the torsion spring 18, the opening and closing rod 5 can be quickly opened, thereby achieving the effect of rapid and non-destructive disassembly of the cylindrical workpiece;

[0028] A protruding top block 7 is fixed on the inner side of the opening and closing rod 5, and a flexible pad 3 is fixed on the outer side of the protruding top block 7, and the flexible pad 3 is made of rubber material;

[0029] A second inclined block 14 is longitudinally slidably connected to the inside of the wrench body 1 and matches the first inclined block 13, and the contact surface between the second inclined block 14 and the first inclined block 13 is an inclined surface;

[0030] A connecting rod passing through the wrench body 1 is fixed on the top of the second inclined block 14 , and a button 17 is fixed on the top of the connecting rod.

[0031] See also Figure 4 A longitudinal slot is provided inside the wrench body 1 to cooperate with the second oblique block 14, and an elastic piece 15 located inside the longitudinal slot is fixed between the bottom of the second oblique block 14 and the wrench body 1. By setting the above structure, the elastic piece 15 plays a role in resetting the second oblique block 14 and the button 17, making it easier to press and open the tool next time.

[0032] See also Figure 2 The opening and closing rod 5 and the wrench body 1 are rotatably connected through the rotating shaft 6, and a torsion spring 18 located on the outside of the rotating shaft 6 is fixed between the opening and closing rod 5 and the wrench body 1. By setting the above structure, the torsion spring 18 facilitates the rapid opening of the opening and closing rod 5, thereby playing the role of quickly disassembling the workpiece.

[0033] See also Figure 3 and Figure 4The second clip 11 and the first oblique block 13 are respectively fixed with a first guide rod 12 and a second guide rod 16 extending into the interior of the wrench body 1, and a guide hole matching the first guide rod 12 and the second guide rod 16 is opened inside the wrench body 1. By setting the above structure, the utility model provides the first guide rod 12 and the second guide rod 16, respectively, to guide the second clip 11 and the first oblique block 13 when they slide, making them more stable when sliding.

[0034] The working principle of the utility model is as follows: when in use, by placing the cylindrical workpiece on the inner side of the flexible pad 3, the flexible pad and the specially designed clamping mechanism reduce the direct pressure on the workpiece surface, thus avoiding scratching or damaging the workpiece surface;

[0035] At the same time, the flexible pad can be adaptively adjusted according to the diameter of the workpiece, and is suitable for smooth outer cylindrical workpieces of different specifications, with a wide range of uses;

[0036] First, the staff manually rotates the two sets of clamping rods 2 so that the ends of the clamping rods 2 drive the flexible pads 3 to contact the outer surface of the cylindrical workpiece. Then, the opening and closing rods 5 are rotated along the rotating shaft 6 to the closed state, and then the first buckle 9 and the second buckle 11 at the ends of the opening and closing rods 5 are engaged with each other.

[0037] At this time, since the protruding top block 7 is provided on the inner side of the opening and closing rod 5, the cylindrical workpiece can be clamped and fixed in cooperation with the two sets of clamping rods 2;

[0038] When the use is completed, the staff only needs to manually press the button 17, and then the second inclined block 14 descends to push the first inclined block 13 to slide horizontally, thereby driving the second clip 11 to slide horizontally away from the first clip 9 through the transmission rod 10. At this time, under the reset action of the torsion spring 18, the opening and closing rod 5 can be quickly opened, thereby achieving the effect of rapid and non-destructive disassembly of the cylindrical workpiece;

[0039] Specifically, the wrench body 1 adopts an ergonomically designed handle with a moderate length for easy operation and force application, and is made of a lightweight aluminum alloy or a strong plastic to ensure that the handle is light;

[0040] The outer surface of the clamping rod 2 is provided with an external thread, that is, the clamping rod 2 and the wrench body 1 are connected by a thread, and then by rotating the clamping rod 2, the extended length of the clamping rod 2 can be adjusted, thereby adapting to the clamping and fixing operation of cylindrical workpieces of different diameters;

[0041] The clamping force is controlled by a spiral device, which is easy and quick to operate and improves work efficiency. In general, the wrench body 1 has the advantages of strong adaptability, easy operation, safety and reliability, and can be widely used in various occasions where smooth outer cylindrical surface workpieces need to be disassembled.

[0042] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A non-destructive disassembly wrench for a smooth outer cylindrical surface based on the principle of a chicken core chuck, comprising a wrench body (1), characterized in that: Both sides of the end of the wrench body (1) are threadedly connected to clamping rods (2), and flexible pads (3) are provided at the ends of the two sets of clamping rods (2), and rotating blocks (4) are fixed to the ends of the clamping rods (2); One side of the end of the wrench body (1) is rotatably connected to an opening and closing rod (5), and a first buckle (9) extending into the interior of the wrench body (1) is fixed to the end of the opening and closing rod (5), and the first buckle (9) and the opening and closing rod (5) are fixedly connected via a connecting block (8). A transmission rod (10) is laterally slidably connected to the interior of the wrench body (1), and a second buckle (11) engaged with the first buckle (9) is fixed to the bottom of one end of the transmission rod (10).

2. The non-destructive disassembly smooth outer surface wrench based on the chicken core chuck principle according to claim 1 is characterized in that: A first inclined block (13) is fixed to the bottom of one end of the transmission rod (10) away from the first buckle (9), and a sliding groove is provided inside the wrench body (1) to match the first inclined block (13), the transmission rod (10) and the second buckle (11).

3. The non-destructive disassembly wrench for smooth outer cylindrical surface based on the chicken core chuck principle according to claim 2 is characterized in that: A second inclined block (14) that matches the first inclined block (13) is longitudinally slidably connected inside the wrench body (1), and the contact surface between the second inclined block (14) and the first inclined block (13) is an inclined surface.

4. The non-destructive disassembly smooth outer surface wrench based on the chicken core chuck principle according to claim 1 is characterized in that: A protruding top block (7) is fixed on the inner side of the opening and closing rod (5), and a flexible pad (3) is fixed on the outer side of the protruding top block (7), and the flexible pad (3) is made of rubber material.

5. The non-destructive disassembly smooth outer surface wrench based on the chicken core chuck principle according to claim 3 is characterized in that: A longitudinal slot matching the second inclined block (14) is provided inside the wrench body (1), and an elastic piece (15) located inside the longitudinal slot is fixed between the bottom of the second inclined block (14) and the wrench body (1).

6. The non-destructive disassembly smooth outer surface wrench based on the chicken core chuck principle according to claim 1 is characterized in that: The opening and closing rod (5) and the wrench body (1) are rotatably connected via a rotating shaft (6), and a torsion spring (18) located outside the rotating shaft (6) is fixed between the opening and closing rod (5) and the wrench body (1).

7. The non-destructive disassembly wrench for smooth outer cylindrical surface based on the chicken core chuck principle according to claim 3 is characterized in that: A connecting rod passing through the wrench body (1) is fixed on the top of the second inclined block (14), and a button (17) is fixed on the top of the connecting rod.

8. The non-destructive disassembly wrench for smooth outer cylindrical surface based on the chicken core chuck principle according to claim 2 is characterized in that: A first guide rod (12) and a second guide rod (16) extending into the interior of the wrench body (1) are fixed to one side of the second buckle (11) and the first inclined block (13), respectively, and a guide hole matching the first guide rod (12) and the second guide rod (16) is provided inside the wrench body (1).

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