Impact type pin puller

Abstract

The utility model discloses an impact type pin puller, which relates to the technical field of pin pullers and comprises a first guide rod, an external thread is arranged at one end of the first guide rod, a bolt mounting sleeve is screwed on the external thread of the first guide rod, a pulling head is inserted into one end of the first guide rod, which is positioned on the external thread, and a second guide rod is screwed at the other end of the first guide rod. A first rectangular groove is formed in the position, close to the joint of the second guide rod, of the first guide rod, a first jackscrew mounting hole is formed in the side end of the first rectangular groove, and the first guide rod is movably sleeved with a pull hammer; according to the pin puller, the first guide rod is matched with the bolt mounting sleeve in a screwed mode, so that the structure of the pin puller is stabilized conveniently, stability is improved, and reliable pin pulling is achieved; the first guide rod is matched with the pulling head in an inserted manner, so that different pins can be adapted conveniently, and various pin pulling requirements are met; the first guide rod and the second guide rod are screwed and matched, so that the length can be conveniently adjusted as required, and the operation convenience is improved; and finally, the problem of pin pulling difficulty is solved, and the pin pulling efficiency and convenience are improved.

Description

Technical Field

[0001] This utility model relates to the field of pin puller technology, and in particular to an impact-type pin puller. Background Technology

[0002] After the parts are processed, the manufacturer needs to assemble them into a product. After the product is assembled, it needs to be debugged. During this process, the parts will be assembled, disassembled and reassembled multiple times. During this process, problems such as insufficient space or the locating pin and pin hole being too tight may occur, making disassembly difficult. In some cases, the entire product may need to be disassembled and reassembled, which will result in a lot of manpower waste and may sometimes affect the overall project progress. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing an impact-type pin puller.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an impact-type pin puller, comprising a first guide rod, one end of which is provided with an external thread, a bolt mounting sleeve is screwed onto the external thread of the first guide rod, a puller head is inserted into one end of the first guide rod located at the external thread, a second guide rod is screwed onto the other end of the first guide rod, a first rectangular groove is provided near the connection point of the first guide rod and a first set screw mounting hole is provided on the side end of the first rectangular groove, and a pull hammer is movably sleeved on the first guide rod.

[0005] Preferably, a stop block is provided in the first rectangular groove, and a threaded pin is screwed between the stop block and the first set screw mounting hole, and the pull hammer slides between the stop block and the bolt mounting sleeve.

[0006] Preferably, one end of the second guide rod is provided with a threaded rod, and one end of the first guide rod is provided with a first internal threaded hole for engaging the threaded rod.

[0007] Preferably, the other end of the second guide rod is provided with a second internal threaded hole, a second rectangular groove is provided near the second internal threaded hole, and a second set screw mounting hole is provided at the side end of the second rectangular groove.

[0008] Preferably, the second guide rod can be repeatedly extended by adding it through the second internal threaded hole.

[0009] Preferably, the bottom end of the auger is provided with a hexagonal protrusion, and one end of the first guide rod is provided with a slot for inserting the hexagonal protrusion.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model constructs a stable structure by screwing the first guide rod and the bolt mounting sleeve together, which is simple and reliable, reduces manufacturing complexity and cost, improves stability, and achieves reliable pin pulling; the first guide rod and the puller head cooperate to adapt to different pins, which is low in cost and highly versatile; the screwing connection between the first guide rod and the second guide rod, and the extension of the second guide rod, allows for flexible length adjustment and convenient operation; the first rectangular groove and other features limit the range of motion of the pull hammer, accurately control the force, and reduce errors and repetitive operations; ultimately, it solves the problems of disassembly difficulties, manpower waste, and project progress delays caused by insufficient space or excessively tight fit between the positioning pin and the pin hole during the assembly and disassembly of parts, thus improving the pin pulling efficiency and ease of use of an impact-type pin puller. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0012] Figure 1 This is a first-view schematic diagram of the overall structure proposed in this utility model;

[0013] Figure 2 This is a schematic diagram of the exploded disassembly of the integral parts proposed in this utility model;

[0014] Figure 3 This is an enlarged schematic diagram of the second guide rod component proposed in this utility model;

[0015] Figure 4 This is a first-view schematic diagram of the overall cross-sectional structure proposed in this utility model.

[0016] The numbers in the diagram are: 1. First guide rod; 2. Bolt mounting sleeve; 3. Puller head; 4. First set screw mounting hole; 5. First rectangular groove; 6. Stop block; 7. Threaded pin; 8. Pull hammer; 9. Second guide rod; 10. Threaded rod; 11. Second internal threaded hole; 12. Second rectangular groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Example: See Figure 1-4This utility model discloses an impact-type pin puller, comprising a first guide rod 1, one end of which has an external thread, and a bolt mounting sleeve 2 is screwed onto the external thread of the first guide rod 1. A puller head 3 is inserted into the external thread end of the first guide rod 1, and a second guide rod 9 is screwed onto the other end of the first guide rod 1. A first rectangular groove 5 is formed near the connection point of the first guide rod 1 and the side end of the first rectangular groove 5 has a first set screw mounting hole 4. A pull hammer 8 is movably sleeved on the first guide rod 1. The first guide rod 1 serves as the main structure, providing an installation base for other components. Its external thread facilitates a secure screwing connection with the bolt mounting sleeve 2, ensuring a firm connection and making the overall structure more robust. Stable and reliable; the bolt mounting sleeve 2 can play a role in auxiliary fixing and enhance the overall structure; the puller head 3 is inserted into one end of the first guide rod 1, which is convenient for replacement or adaptation according to different pin conditions, improving the versatility of the pin puller; the second guide rod 9 is screwed to the first guide rod 1, which can flexibly change the overall length of the pin puller to adapt to different operating space requirements; the first rectangular groove 5 and the first set screw mounting hole 4 are used for subsequent installation of related components to limit the movement of the pull hammer 8, ensuring that the impact force can be precisely controlled during operation, and the movable pull hammer 8 can provide power for pin pulling through impact, realizing effective pin pulling operation; a stop block 6 is provided in the first rectangular groove 5, and the stop block 6 is connected to the first set screw. A threaded pin 7 is screwed between the mounting holes 4, and the pull hammer 8 slides between the stop block 6 and the bolt mounting sleeve 2. The stop block 6 passes through the first rectangular groove 5, and in conjunction with the threaded pin 7 and the screwed connection of the first set screw mounting hole 4, it can firmly fix the stop block 6 in a suitable position, providing a reliable limiting effect for the pull hammer 8, preventing the pull hammer 8 from exceeding the expected range during sliding, and ensuring that the pull hammer 8 can only slide stably between the stop block 6 and the bolt mounting sleeve 2. This makes the force generated by each impact of the pull hammer 8 more predictable and stable, accurately acting on the pin pulling operation, improving the accuracy and success rate of pin pulling, and reducing the occurrence of pin pulling failures due to unstable impact force; the second guide rod 9 One end is provided with a threaded rod 10, and one end of the first guide rod 1 has a first internal threaded hole for screwing the threaded rod 10; the threaded rod 10 at one end of the second guide rod 9 is screwed into the first internal threaded hole of the first guide rod 1. This connection method is simple and stable, and is convenient for installation and disassembly. It allows operators to easily connect or separate the second guide rod 9 from the first guide rod 1 according to the actual needs of the pin puller length in the actual use scenario, and quickly adjust the overall length of the pin puller. It is well adapted to the pin pulling work in different space environments such as narrow spaces, enhances the applicability and flexibility of the pin puller, improves work efficiency, and reduces the trouble of not being able to pull the pin smoothly due to unsuitable length.

[0019] In this invention, the other end of the second guide rod 9 is provided with a second internal threaded hole 11, and a second rectangular groove 12 is provided near the second internal threaded hole 11. A second set screw mounting hole is provided on the side end of the second rectangular groove 12. The second internal threaded hole 11 provides a connection interface for further component installation, such as adding other extension rods to expand the length range of the pin puller and better meet more complex and longer-distance pin pulling needs. The second rectangular groove 12 and the second set screw mounting hole provide conditions for subsequent installation of limiting components such as the stop block 6, facilitating the limiting and fixing of any potentially added components or other moving parts. This ensures that all components of the entire pin puller structure can work stably and collaboratively during expansion and use, maintaining stable and reliable pin pulling performance, and further improving the versatility and practicality of the pin puller. The second guide rod 9 can be repeatedly extended by adding components through the second internal threaded hole 11. This feature gives the pin puller strong expandability; when facing pin pulling scenarios with different length requirements, it is not necessary to replace the entire pin puller, only... The pin puller can be easily operated and cost-effective by continuously adding suitable extension components through the second internal threaded hole 11. This greatly improves the adaptability of the pin puller to various complex working conditions, meets the pin pulling needs under different distances and spatial layouts, effectively saves resources, and ensures efficient completion of pin pulling tasks in various usage scenarios, reducing work stoppages caused by tool length limitations. The bottom end of the puller head 3 is provided with a hexagonal protrusion, and one end of the first guide rod 1 is provided with a corresponding slot for inserting the hexagonal protrusion. The hexagonal protrusion at the bottom end of the puller head 3 and the slot at one end of the first guide rod 1 are interlocked, making the connection between the puller head 3 and the first guide rod 1 tighter and more stable. During the pin pulling operation, the puller head 3 can stably act on the pin without easily loosening or falling off, ensuring that the pin pulling force can be accurately transmitted to the pin, improving the reliability and stability of the pin pulling operation. It also makes it easy to replace the puller head 3 of different specifications according to actual needs to adapt to different types of pins, enhancing the versatility and practicality of the pin puller.

[0020] Working principle: When using this utility model, a bolt mounting sleeve 2 is screwed onto the external thread of one end of the first guide rod 1. A puller 3 with a hexagonal protrusion is inserted into this end and fixed in place with the slot. The internal threaded hole at the other end is used to connect to the second guide rod 9. A stop block 6 is installed in the first rectangular groove 5 near the connection point and fixed with a threaded pin 7 to limit the movement of the pull hammer 8. One end of the second guide rod 9 is threaded to the internal threaded hole of the first guide rod 1. An extension length can be added as needed. The second internal threaded hole 11 and the second rectangular groove 12 at the other end are used for extended installation to enhance adaptability. The pull hammer 8 is fitted on the first guide rod 1 and can slide between the stop block 6 and the bolt mounting sleeve 2. The puller 3 is connected to the threaded hole of the positioning pin to ensure the transmission of force. When the pull hammer 8 is manually accelerated and slids, it hits the stop block 6. The kinetic energy of the pull hammer 8 is converted into impact force and transmitted to the positioning pin through various components. If one impact is not enough, it is repeatedly struck to loosen and pull out the positioning pin, thus completing the pin removal work. This is to cope with different working conditions.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An impact-type pin puller, comprising a first guide rod (1), characterized in that: One end of the first guide rod (1) is provided with an external thread, and a bolt mounting sleeve (2) is screwed onto the external thread of the first guide rod (1). A puller (3) is inserted into one end of the first guide rod (1) located on the external thread. A second guide rod (9) is screwed onto the other end of the first guide rod (1). A first rectangular groove (5) is provided near the connection of the first guide rod (1) and the side end of the first rectangular groove (5) is provided with a first set screw mounting hole (4). A pull hammer (8) is movably sleeved on the first guide rod (1).

2. The impact-type pin puller according to claim 1, characterized in that: A stop block (6) is provided inside the first rectangular groove (5). A threaded pin (7) is screwed between the stop block (6) and the first set screw mounting hole (4). The pull hammer (8) slides between the stop block (6) and the bolt mounting sleeve (2).

3. The impact-type pin puller according to claim 2, characterized in that: One end of the second guide rod (9) is provided with a threaded rod (10), and one end of the first guide rod (1) is provided with a first internal threaded hole for engaging the threaded rod (10).

4. The impact-type pin puller according to claim 3, characterized in that: The other end of the second guide rod (9) is provided with a second internal thread hole (11), and a second rectangular groove (12) is provided near the second internal thread hole (11). The side end of the second rectangular groove (12) is provided with a second set screw mounting hole.

5. The impact-type pin puller according to claim 4, characterized in that: The second guide rod (9) can be repeatedly extended by adding it through the second internal thread hole (11).

6. The impact-type pin puller according to claim 5, characterized in that: The bottom end of the auger (3) is provided with a hexagonal protrusion, and a slot for inserting the hexagonal protrusion is provided on one end of the first guide rod (1).

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