Reverse pin smashing device for small positioning pin

Abstract

The utility model discloses a reverse pin hitting device for a small positioning pin, which belongs to the technical field of mechanical assembly tools and comprises a sliding rod, an inertia hammer is slidably connected onto the sliding rod and can slide up and down on the sliding rod, a punch is fixedly connected to the lower end of the sliding rod, and the punch is fixedly connected with a handle. The end, close to the punch, of the sliding rod is fixedly connected with a limiting sleeve, and the limiting sleeve limits sliding of the inertia hammer. The utility model has the advantages that the production efficiency is improved, and the assembly quality of products is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical assembly tool technical field, and specifically is a kind of for small locating pin reverse hammering device. BACKGROUND

[0002] In the assembly process of small locating pin, currently, the locating pin is knocked into corresponding installation position by artificial direct percussion method.This traditional method has many drawbacks, on the one hand, workers need to spend great physical effort to complete percussion action, long time operation can lead to worker fatigue, and labor intensity is larger;On the other hand, the force and accuracy of artificial percussion are difficult to guarantee, and it is easy to cause the locating pin to be not installed in place or the locating pin to be offset during installation, which affects the assembly quality and production efficiency of product.

[0003] Therefore, there is an urgent need for a small locating pin assembly device capable of reducing the labor intensity of workers and improving production efficiency. SUMMARY

[0004] The utility model solves the technical problem mentioned in the above background art, provides a kind of for small locating pin reverse hammering device, to solve the problem of large labor intensity of worker and low production efficiency in the assembly process of existing small locating pin, and improve the assembly quality of product.

[0005] To achieve the above object, the technical scheme provided by the utility model is as follows: a kind of for small locating pin reverse hammering device, including slide bar, inertia hammer is slidably connected on the slide bar, inertia hammer is slidably on the slide bar, the lower end of the slide bar is fixedly connected with punch, one end of the slide bar is fixedly connected with limit sleeve near punch, and the sliding of inertia hammer is limited by limit sleeve.

[0006] In some embodiments, the middle part of the inertia hammer is provided with a sliding hole, the sliding hole is sleeved on the slide bar, and the sliding hole is gap matched with the slide bar.

[0007] In some embodiments, the outer diameter of the limit sleeve is greater than the inner diameter of the sliding hole.

[0008] In some embodiments, the inertia hammer is fixedly connected with a hammer handle on one side.

[0009] In some embodiments, the upper end of the slide bar is provided with a handle.

[0010] In some embodiments, the tip angle of the punch is 60 °.

[0011] Compared with the prior art, the utility model has the advantages that: 1, the utility model is suitable for the assembly of small positioning pin, and operating personnel can flexibly adjust the force and stroke length applied to the inertia hammer according to the actual interference amount of the positioning pin;2, by using the impact force generated by the sliding of the inertia hammer on the slide rod, the positioning pin is hammered, the labor intensity of workers is greatly reduced, and due to the reasonable design of the top angle of the punch, the centering accuracy with the positioning pin is improved, and thus the production efficiency and assembly quality are improved.

[0012] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a side view schematic diagram of the reverse hammering device of the utility model embodiment;

[0014] Figure 2 It is a front view schematic diagram of the reverse hammering device of the utility model embodiment;

[0015] In the drawings: 1, handle;2, hammer handle;3, inertia hammer;4, slide rod;5, limit sleeve;6, punch;7, sliding hole;100, reverse hammering device for small positioning pin. DETAILED DESCRIPTION

[0016] The utility model will be further described in detail below.

[0017] In order to make the purpose, technical scheme and advantage of the utility model embodiment clearer, the technical scheme in the embodiment will be clearly and completely described below in combination with the drawings of the utility model embodiment, and the following embodiment is used to illustrate the utility model, but not to limit the scope of the utility model.

[0018] In combination with Figure 1 , Figure 2 As shown in the figure, a reverse hammering device 100 for small positioning pin mainly comprises inertia hammer 3, slide rod 4, limit sleeve 5 and punch 6.

[0019] The inertia hammer 3 is provided with a circular through hole (sliding hole 7) in the middle, and the circular through hole is in clearance fit with the slide rod 4, so that the inertia hammer 3 can freely slide in the axial direction of the slide rod 4. Meanwhile, handles 1 are arranged on both sides of the inertia hammer 3, facilitating workers to hold and drive the inertia hammer 3 to slide on the slide rod 4.

[0020] The upper part of the slide rod 4 is provided with slide rod 4 handle 1, facilitating workers to operate and control the whole device.

[0021] The bottom of the slide rod 4 is provided with a punch 6, and the top angle of the punch 6 is controlled at 60°, which can effectively improve the centering accuracy of the punch 6 and the positioning pin.

[0022] The lower part of the slide rod 4 is fixed with a limiting sleeve 5 at the upper end of the punch 6, and the outer diameter of the limiting sleeve 5 is greater than the circular through hole of the inertia hammer 3, which is used for limiting the downward movement of the inertia hammer 3, and facilitating the inertia hammer 3 to transmit the inertia force to the punch 6.

[0023] When the device is used:

[0024] 1. Device preparation: Before assembling the small positioning pin, check whether each part of the device is intact, ensure that the inertia hammer 3 slides smoothly on the slide rod 4, and each handle 1 is firmly connected.

[0025] 2. Operation process: Place the small positioning pin to be assembled in the appropriate installation position, hold the handle 1 of the slide rod 4 with the worker's hand, and hold the handle 1 on both sides of the inertia hammer 3 with the worker's hand. According to the actual interference amount of the positioning pin, estimate the force and stroke length of the inertia hammer 3 required. For example, for the positioning pin with small interference amount, the force and stroke length of the inertia hammer 3 can be appropriately reduced; for the positioning pin with large interference amount, the corresponding force and stroke length are increased. Then, move the inertia hammer 3 back and forth to generate a certain speed on the slide rod 4, use the impact force generated by the sliding of the inertia hammer 3 to drive the punch 6 at the bottom of the slide rod 4 to act on the positioning pin, and the positioning pin is hammered into the installation position. Since the top angle of the punch 6 is 60°, it can be better centered with the positioning pin, and the accuracy of the pin hammering process is ensured.

[0026] 3. Repeat the operation: After completing the assembly of one positioning pin, the above operation steps can be repeated according to the actual production requirements to complete the assembly of multiple small positioning pins.

[0027] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and its equivalents.

Claims

1. A small pin reversing ramming device (100) for positioning pins, characterized in that: The utility model relates to a kind of inertia hammer, including slide bar (4), inertia hammer (3) is slidably connected on the slide bar (4), inertia hammer (3) is slidably on the slide bar (4), the lower end of the slide bar (4) is fixedly connected with punch (6), one end of the slide bar (4) is fixedly connected with limit sleeve (5) close to punch (6), and the sliding of inertia hammer (3) is positioned by limit sleeve (5).

2. A device (100) for reverse ramming of small positioning pins according to claim 1, characterized in that: The middle part of the inertia hammer (3) is provided with a sliding hole (7), which is sleeved on the slide bar (4), and the sliding hole (7) is in clearance fit with the slide bar (4).

3. A device (100) for reverse ramming of small positioning pins according to claim 2, characterized in that: The outer diameter of the limit sleeve (5) is larger than the inner diameter of the sliding hole (7).

4. The device (100) for reverse ramming of small positioning pins according to claim 1, characterized in that: One side of the inertia hammer (3) is fixedly connected with a hammer handle (2).

5. The compact dowel pin reverse ramming device (100) according to claim 1, characterized in that: The upper end of the slide bar (4) is provided with a handle (1).

6. The small diameter dowel pin reverse knock-out device (100) of claim 1, wherein: The tip angle of the punch (6) is 60°.

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