Pin pulling tool capable of achieving rapid switching

Abstract

The utility model belongs to the technical field of pin pulling tools, and particularly relates to a quick-switching pin pulling tool which comprises an impact seat, a sliding impact head, an operating rod, a pin pulling head and a rotary switching buckle. The impact seat is fixedly arranged in the middle or at the rear end of the operating rod; the pin pulling head is fixedly connected to the front end of the operating rod; the sliding impact head is sleeved on the operating rod and is positioned between the impact seat and the pin pulling head; the rotary switching buckle is rotatably connected to the pin pulling head; a plurality of second clamping pin openings are formed in the rotary switching buckle so as to clamp pins with different sizes; the sliding impact head slides along the operating rod and impacts the impact seat, and the pin pulling head can move backwards and pull out the pin connected with the pin pulling head. According to the scheme, through the design of the rotatable rotary switching buckle, the first pin clamping openings of different sizes can be rotated to designated positions, pins of different sizes can be pulled out, the pin pulling-out efficiency is improved, the versatility of the pin pulling tool is achieved, and the pin pulling operation efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pin pulling tools, and in particular relates to a fast-converting pin pulling tool. Background Art

[0002] In mechanical and mold processing and manufacturing, pin pulling operations are often required. Since pins of different diameters need to be installed in different parts of mechanical equipment and molds, corresponding types of pin pulling tools are required. Workers need to frequently change and use different types of pin pulling tools, which brings certain inconveniences, reduces work efficiency, and prolongs work time. Utility Model Content

[0003] In order to solve the above problems existing in the prior art, the present invention provides a fast-converting pin-pulling tool.

[0004] The technical solution adopted by the utility model is:

[0005] A fast-conversion pin pulling tool comprises an impact seat, a sliding impact head, an operating rod, a pin pulling head and a rotating switching buckle; the impact seat is fixedly arranged at the middle part or the rear end of the operating rod; the pin pulling head is fixedly connected to the front end of the operating rod; the sliding impact head is sleeved on the operating rod and is located between the impact seat and the pin pulling head; the rotating switching buckle is rotatably connected to the pin pulling head; a plurality of second bayonet holes are arranged on the rotating switching buckle, and the sizes of the plurality of second bayonet holes are different so as to clamp pins of different sizes; the second bayonet holes are clamped on the pins, and at the same time, the sliding impact head slides along the operating rod and impacts the impact seat, and the pin pulling head can move backwards and pull out the pins connected thereto.

[0006] As an alternative or supplement to the above-mentioned quick-switch pin pulling tool: the rotating switch buckle is embedded in the pin pulling head, and a first latch opening is provided on the side of the pin pulling head away from the operating rod; after the rotating switch buckle is rotated to different angles, the first latch opening can be opposite to any second latch opening.

[0007] As an alternative or supplement to the above-mentioned fast-conversion pin pulling tool: the pin pulling head is in a round cake shape, a rotation groove is arranged on the end face of the pin pulling head, and the rotation switching buckle is rotatably arranged in the rotation groove.

[0008] As an alternative or supplement to the above-mentioned quick-conversion pin pulling tool: a central rotating shaft is arranged at the center of the rotating groove, and a central sleeve is arranged at the center of the rotating switching buckle, and the central sleeve is rotatably sleeved on the central rotating shaft.

[0009] As an alternative or supplement to the above-mentioned quick-change pin extraction tool: the first latch opening is located on the groove wall of the rotating groove away from the operating rod; the first latch opening is a U-shaped groove, and the groove direction of the first latch opening is perpendicular to the operating rod.

[0010] As an alternative or supplement to the above-mentioned fast-conversion pin pulling tool: the axis of the rotary switching buckle is perpendicular to the operating rod.

[0011] As an alternative or supplement to the above-mentioned quick-change pin extraction tool: the second bayonet opening is a U-shaped groove, and second bayonet openings of different sizes have different groove widths; the groove direction of the second bayonet opening is perpendicular to the operating rod.

[0012] As an alternative or supplement to the above-mentioned quick-switch pin pulling tool: the rotary switching buckle is in the shape of a round cake, and an annular groove is arranged on the end face of the rotary switching buckle, and the second bayonet opening is arranged on the outer groove wall of the annular groove; the annular groove is used to accommodate the cup head of the pin.

[0013] As an alternative or supplement to the above-mentioned quick-change pin pulling tool: a recessed portion is formed on the outer groove wall of the annular groove adjacent to the second bayonet opening.

[0014] As an alternative or supplement to the above-mentioned quick-change pin pulling tool: when the pin is engaged with the second bayonet opening, the axis of the pin coincides with or is parallel to the axis of the operating rod.

[0015] The beneficial effects of the utility model are as follows: the scheme can rotate the first pin openings of different sizes to the specified position through the rotatable rotating switching buckle design, thereby realizing the extraction of pins of different sizes, effectively improving the efficiency of pin extraction, realizing the versatility of the pin extraction tool, and improving the efficiency of the pin extraction operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention 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.

[0017] Figure 1 It is the exploded structure diagram of the fast-converting pin extraction tool in this scheme;

[0018] Figure 2 It is a structural schematic diagram of the fast-converting pin-pulling tool in this scheme;

[0019] Figure 3 This is an enlarged structural diagram of the pin puller head;

[0020] Figure 4 This is a detailed structural diagram of the pin puller and the rotating switching buckle.

[0021] In the figure: 1-impact seat; 2-sliding impact head; 3-operating rod; 4-pin pulling head; 41-first bayonet opening; 42-rotation groove; 43-central rotation axis; 5-rotation switching buckle; 51-second bayonet opening; 52-center sleeve; 53-ring groove; 54-buckle tooth. DETAILED DESCRIPTION

[0022] The technical solution in this embodiment will be clearly and completely described below in conjunction with the accompanying drawings. The described embodiments are only some of the embodiments, not all of them. Based on the embodiments in this solution, all other embodiments obtained by ordinary technicians in this field without making creative work are within the protection scope of this solution.

[0023] Example 1

[0024] like Figures 1 to 4 As shown, this embodiment designs a fast-conversion pin pulling tool, including an impact seat 1, a sliding impact head 2, an operating rod 3, a pin pulling head 4 and a rotating switching buckle 5, etc., and the above components are generally metal parts.

[0025] The operating rod 3 is a long rod structure, and the operating rod 3 may be a round rod or a polygonal rod, or one section of the operating rod 3 may be a round rod or a polygonal rod.

[0026] The impact seat 1 is fixedly arranged at the middle or rear end of the operating rod 3, and the impact seat 1 is connected to the operating rod 3 by integral manufacturing, welding or threaded connection; when the impact seat 1 is installed at the rear end of the operating rod 3, the impact seat 1 can also be used as a handle. The length of the operating rod 3 is generally 30-60 cm. When the impact seat 1 is installed at the middle of the operating rod 3, a handle can be installed separately at the rear end of the operating rod 3.

[0027] The pin pulling head 4 is fixedly connected to the front end of the operating rod 3 by welding, thread connection or the like.

[0028] The sliding impact head 2 is sleeved on the operating rod 3 and is located between the impact seat 1 and the pin pulling head 4. When the sliding impact head 2 slides back and forth and hits the impact seat 1, the pin pulling head 4 can move backward and pull out the pin connected to it, which can provide an instantaneous backward impact force to the operating rod 3 and the pin pulling head 4, thereby facilitating the outward pulling of the pin.

[0029] The rotating switch buckle 5 is rotatably connected to the pin pulling head 4. A plurality of second bayonet holes 51 are provided on the rotating switch buckle 5. The sizes of the plurality of second bayonet holes 51 are different so as to clamp pins of different sizes. When the rotating switch buckle 5 is rotated, the required second bayonet hole 51 can be rotated to a specified position, and then the second bayonet hole 51 can be clamped to the corresponding pin to realize the pulling out of the pin. The second bayonet hole 51 has different sizes and models, so that it can be clamped to pins of different sizes.

[0030] The second bayonet opening 51 may be a U-shaped slot, and second bayonet openings 51 of different sizes have different slot widths; the slot direction of the second bayonet opening 51 is perpendicular to the operating rod 3. The second bayonet opening 51 of the largest size should not be larger than the size of the first bayonet opening 41.

[0031] The rotating switch buckle 5 can be embedded in the pin pulling head 4. Specifically, the pin pulling head 4 is in a round shape, and a rotating groove 42 is provided on the end surface of the pin pulling head 4. The rotating switch buckle 5 can be rotatably arranged in the rotating groove 42, thereby improving the stability and structural strength of the connection structure between the rotating switch buckle 5 and the pin pulling head 4. A central rotating shaft 43 is provided at the center of the rotating groove 42, and a central sleeve 52 is provided at the center of the rotating switch buckle 5. The central sleeve 52 can be rotatably sleeved on the central rotating shaft 43. The axis of the rotating switch buckle 5 is perpendicular to the operating rod 3, so that the rotating plane of the rotating switch buckle 5 is parallel to the operating rod 3.

[0032] A first latch opening 41 is provided on the side of the pin pulling head 4 away from the operating rod 3. Specifically, the first latch opening 41 is located on the groove wall of the rotating groove 42 away from the operating rod 3. The first latch opening 41 is a U-shaped groove. The groove direction of the first latch opening 41 is perpendicular to the operating rod 3. After the rotating switch buckle 5 is rotated to different angles, the first latch opening 41 can be opposite to any second latch opening 51.

[0033] The rotating switch buckle 5 is in the shape of a round cake, and an annular groove 53 is arranged on the end surface of the rotating switch buckle 5, and the second bayonet opening 51 is arranged on the outer groove wall of the annular groove 53; the annular groove 53 is used to accommodate the cup head of the pin, and when the pin is engaged with the second bayonet opening 51, the rod of the pin is inserted into the first bayonet opening 41 and the second bayonet opening 51, and the cup head of the pin is placed in the annular groove 53. A recessed portion is formed on the outer groove wall of the annular groove 53 adjacent to the second bayonet opening 51, and the recessed portion can be used to limit and accommodate the cup head of the pin, thereby ensuring the smooth insertion of the cup head. A plurality of buckle teeth 54 are arranged on the radial outer side of the annular groove 53, and the second bayonet opening 51 is formed between the adjacent buckle teeth 54.

[0034] In addition, when the pin is engaged with the second latch opening 51 and the first latch opening 41 , the axis of the pin coincides with or is parallel to the axis of the operating rod 3 , so that the backward impact force of the pin pulling head 4 can act on the pin more effectively.

[0035] When the fast-conversion pin pulling tool in this embodiment is used, the worker rotates the rotating switching buckle 5, rotates the second bayonet hole 51 corresponding to the size of the pin to the first bayonet hole 41, so that the second bayonet hole 51 is directly opposite to the first bayonet hole 41, and then inserts the rod of the operating rod 3 into the second bayonet hole 51 and the first bayonet hole 41, and at the same time, the cup head of the pin extends into the annular groove 53. Then, slide the sliding impact head 2 back and forth, and use the sliding impact head 2 to hit the impact seat 1, so that the pin pulling head 4 drives the pin to move backward, thereby realizing the extraction of the pin. Before using the pin pulling tool in this embodiment, other tools can be used to expose a part of the rod of the pin backward, so as to facilitate the insertion of the second bayonet hole 51 and the first bayonet hole 41.

[0036] The above embodiments are merely examples for the purpose of clarifying the description, and are not intended to limit the implementation methods; it is not necessary and impossible to list all implementation methods exhaustively. However, obvious changes or modifications derived therefrom are still within the scope of protection of the present technology.

Claims

1. A fast-conversion pin extraction tool, characterized in that: The invention comprises an impact seat (1), a sliding impact head (2), an operating rod (3), a pin pulling head (4) and a rotary switching buckle (5); the impact seat (1) is fixedly arranged at the middle part or the rear end of the operating rod (3); the pin pulling head (4) is fixedly connected to the front end of the operating rod (3); the sliding impact head (2) is sleeved on the operating rod (3) and is located between the impact seat (1) and the pin pulling head (4); the rotary switching buckle (5) is rotatably connected to the pin pulling head (4); a plurality of second latch openings (51) are arranged on the rotary switching buckle (5), and the sizes of the plurality of second latch openings (51) are different so as to latch pins of different sizes; the sliding impact head (2) slides along the operating rod (3) and impacts the impact seat (1), and the pin pulling head (4) can move backwards and pull out the pin connected thereto.

2. The quick-change pin extraction tool according to claim 1, characterized in that: The rotary switching buckle (5) is embedded in the pin pulling head (4), and a first latch opening (41) is provided on a side of the pin pulling head (4) away from the operating rod (3); after the rotary switching buckle (5) is rotated to different angles, the first latch opening (41) can be directly opposite to any second latch opening (51).

3. The quick-change pin extraction tool according to claim 2, characterized in that: The pin pulling head (4) is in the shape of a round cake, a rotation groove (42) is arranged on the end surface of the pin pulling head (4), and the rotation switching buckle (5) is rotatably arranged in the rotation groove (42).

4. The quick-change pin extraction tool according to claim 3, characterized in that: A central rotating shaft (43) is arranged at the center of the rotating groove (42), and a central sleeve (52) is arranged at the center of the rotating switching buckle (5), and the central sleeve (52) is rotatably sleeved on the central rotating shaft (43).

5. The quick-change pin extraction tool according to claim 2, characterized in that: The first latch opening (41) is located on a groove wall of the rotating groove (42) on a side away from the operating rod (3); the first latch opening (41) is a U-shaped groove, and the groove direction of the first latch opening (41) is perpendicular to the operating rod (3).

6. The quick-change pin extraction tool according to any one of claims 1 to 5, characterized in that: The axis of the rotating switching buckle (5) is perpendicular to the operating rod (3).

7. The quick-change pin extraction tool according to claim 6, characterized in that: The second bayonet opening (51) is a U-shaped groove, and second bayonet openings (51) of different sizes have different groove widths; the groove direction of the second bayonet opening (51) is perpendicular to the operating rod (3).

8. The quick-change pin extraction tool according to claim 7, characterized in that: The rotary switching buckle (5) is in the shape of a round cake, and an annular groove (53) is arranged on the end surface of the rotary switching buckle (5), and the second bayonet opening (51) is arranged on the outer groove wall of the annular groove (53); the annular groove (53) is used to accommodate the cup head of the pin.

9. The quick-change pin extraction tool according to claim 8, characterized in that: A recessed portion is formed on the outer groove wall of the annular groove (53) adjacent to the second bayonet opening (51).

10. The fast-conversion pin extraction tool according to any one of claims 7 to 9, characterized in that: When the pin is engaged with the second latch opening (51), the axis of the pin coincides with or is parallel to the axis of the operating rod (3).

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