CN201931428U - Assembling device for elastic cylindrical pin - Google Patents

Abstract

The utility model provides an elastic cylindrical pin assembly device, which comprises a transfer handle, a punching needle, an elastic member, a fixed sleeve and a telescopic sleeve. The cylinder is fastened and connected, the punching needle is partly contained in the fixed sleeve, and the punching needle is located at the bottom of the cavity. The bottom end of the punching needle is provided with a first limiter, and one end of the telescopic sleeve is provided with a second limiter. The telescopic sleeve is socketed and connected with the punching needle, the compression spring is arranged on the punching needle, and fits with the telescopic sleeve, and the fixed sleeve passes through the telescopic sleeve and is fixedly connected with one end of the cavity body of the transfer handle. At least one magnet is provided on the top of the telescopic sleeve to absorb the cylindrical pin, so that the device can be moved conveniently. Through the above technical solutions, not only can the production efficiency and quality be improved, but also the safety of operation can be greatly enhanced.

Description

An Elastic Cylindrical Pin Assembly Device

technical field

The utility model relates to an assembly device, in particular to an elastic cylindrical pin assembly device.

Background technique

In various industrial fields, cylindrical pins are mainly used for positioning, and can also be used for connection. It is fixed in the pin hole by means of interference fit. When the cylindrical pin is used for positioning, it is usually not loaded or subjected to a small load.

The traditional pin assembly process is mainly done by hand, using tools such as hammers and copper rods for assembly. The shape of the cylindrical pin is smooth, the shape is small, the operation is complicated and requires high skill, and the force is too large. The cylindrical pin is broken and damaged, especially For the narrow space, obstructed operation line of sight, and the shape of the workpiece to be assembled has no fixed reference, it cannot be completed by hand, the production efficiency is low, the quality cannot be guaranteed, and there are certain safety hazards and other shortcomings.

Utility model content

The utility model aims to solve the problems in the prior art that there are hidden safety hazards in the manual operation of cylindrical pin assembly, the assembly quality is difficult to guarantee, and the operating space is limited when assembling the cylindrical pins. It provides a high safety, simple operation and can ensure the assembly quality Elastic cylindrical pin assembly tool.

An elastic cylindrical pin assembly device, including a transfer handle, a punching needle, an elastic member, a fixed sleeve and a telescopic sleeve, one end of the transfer handle is tightly connected to the device generating impact force, and the other end is fixed to the fixed sleeve connection, the telescopic sleeve part is included in the fixed sleeve and can move axially along the fixed sleeve, the punching pin is located inside the fixed sleeve, one end of the punching pin is contained in the telescopic sleeve, and the other end is against the On the end face of the transfer handle, the end of the punch pin abutting against the transfer handle is provided with a first boss around the circumference, the elastic member is sleeved on the punch pin, and one end of the elastic member leans against the first boss of the punch pin , and the other end abuts against the end surface of the telescopic sleeve inside the fixed sleeve.

Preferably, one end of the telescopic sleeve located inside the fixed sleeve is provided with a second boss in the circumferential direction around the end, and the inner wall of one end of the fixed sleeve accommodates the telescopic sleeve is circumferentially provided with a ring that matches the second boss. The third boss.

Preferably, at one end of the telescopic sleeve located outside the fixed sleeve, at least one radial through hole is uniformly provided on the radial section, and a magnet is provided in each radial through hole.

Preferably, the distance between the radial section and the end face on which the cylindrical pin is installed is less than the length of a cylindrical pin.

Preferably, the elastic member is a compression spring.

Preferably, the end face of the punch pin located inside the telescopic sleeve further includes a positioning boss for defining the position of the cylindrical pin.

Preferably, the fixing sleeve is threadedly connected to the transfer handle.

In the above technical solution, the transfer handle is connected with the device that generates power from the outside, the punching pin abuts against the transfer handle and transmits the external power to the cylindrical pin, and the telescopic sleeve part is contained in the fixed sleeve and can be fixed by eye The sleeve moves back and forth in the axial direction, and the cylindrical pin can be smoothly assembled on the workpiece when the punch does work on the cylindrical pin. The whole device can accurately position the cylindrical pin in a limited space, ensuring the safety during the assembly process. Moreover, the assembly quality is effectively improved. The compression spring on the punching pin is compressed by force at the same time. After its own deformation, it will work on the punching pin and the telescopic sleeve to generate a restoring force, so that the device returns to its original state, which is convenient for the next assembly. The magnet on the telescopic sleeve can firmly absorb the cylindrical pin, prevent the cylindrical pin from falling out, and effectively improve the installation efficiency of the elastic cylindrical pin.

Description of drawings

Fig. 1 is the appearance rendering of an embodiment of the utility model;

Fig. 2 is an exploded view of the overall structure of an embodiment of the utility model;

Fig. 3 is a radial sectional view of the overall structure of an embodiment of the utility model;

Fig. 4 is a cross-sectional view of an embodiment of the utility model before assembling a cylindrical pin;

Fig. 5 is a cross-sectional view during the process of assembling cylindrical pins according to an embodiment of the present invention;

Fig. 6 is a cross-sectional view of an embodiment of the utility model after the cylindrical pin is assembled.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

An elastic cylindrical pin assembly device, comprising a transfer handle 1, a punching needle 2, an elastic member 3, a fixed sleeve 4 and a telescopic sleeve 5, one end of the transfer handle 1 is tightly connected with a device generating impact force, and the other One end is fixedly connected to the fixed sleeve 4, the telescopic sleeve 5 is partly contained in the fixed sleeve 4 and can move axially along the fixed sleeve 4, the punching needle 2 is located inside the fixed sleeve 4, one end of the punching needle Included in the telescopic sleeve 5, the other end abuts against the end face of the transfer handle 1, the end of the punching needle 2 abutting against the transfer handle 1 is provided with a first boss around the end, and the elastic member 3 is sleeved On the punching pin, one end of the elastic member 3 abuts against the first boss of the punching pin 2 , and the other end abuts against an end surface of the telescopic sleeve 5 inside the fixed sleeve 4 .

As shown in Figure 1 and Figure 2, an embodiment of the present utility model, an elastic cylindrical pin assembly device, includes a transfer handle 1, a punching needle 2, an elastic member 3, a fixed sleeve 4 and a telescopic sleeve 5, The transfer handle 1 is provided with a circumferentially protruding fixing table, which is set to limit and fix the position when connecting the pneumatic tool or hydraulic tool, which is beneficial to the transfer handle 1 and the generation of impact force. The other end of the transfer handle 1 is provided with a cavity in the axial direction, the inner shape of the cavity is uniformly cylindrical up and down, the inner side wall of the cavity is provided with internal threads, and the outer side of the fixed sleeve 4 is surrounded by The circumference is provided with external thread, and the transfer handle 1 and the fixed sleeve 4 are fixedly connected together by the engagement of the internal thread and the external thread. The telescopic sleeve 5 is partly contained in the fixed sleeve 4, and can be Move back and forth in the circumferential direction, the bottom end of the punching pin 2 is partly contained in the fixed sleeve 4, the bottom end of the punching pin 2 abuts against the inner bottom surface of the cavity of the transfer handle 1, and the bottom end of the punching pin 2 is provided with a third ring around the circumference. One boss, the other end of the punching needle 2 is included in the telescopic sleeve 5, and the end face of the punching needle 2 in the telescopic sleeve 5 is provided with a positioning boss 7, the shape of the positioning boss 7 is a cylinder, and the positioning boss 7 The effect of this is to keep the cylindrical pin assembled on the axial centerline of the telescopic sleeve 5, so as to avoid skewing of the cylindrical pin during assembly and cause assembly failure.

As a second embodiment, the transfer handle 1 has no cavity, and the outside of one end of the transfer handle 1 is provided with an external thread around the circumference, and the inner side of the fixed sleeve 4 is provided with a thread that matches the external thread of the transfer handle 1. internal thread, the end of the punch 2 provided with the first boss abuts against the end surface of the transfer handle 1 .

As a preferred solution, the transfer handle 1 is separated from the punching needle 2, one end of the punching needle 2 is a plane and fits on the inner bottom surface of the cavity body, and the inner bottom surface of the cavity body of the transfer handle 1 is a plane, the described The fixed sleeve 4 and the transfer handle 1 are threadedly connected so that the punching needle 2 and the telescopic sleeve 5 can be replaced. For cylindrical pins of different sizes, the punching needle 2 and the telescopic sleeve 5 of different specifications can be matched, and the applicability is wide .

As a preferred solution, one end of the telescopic sleeve located inside the fixed sleeve is provided with a second boss around the circumference, and the inner wall of one end of the fixed sleeve 4 that accommodates the telescopic sleeve 5 is provided along the circumference with a second boss. The third boss that the boss mates with. During the use of the device, due to the violent impact, the telescopic sleeve 5 will come out of the fixed sleeve 4. The second boss of the telescopic sleeve 5 cooperates with the third boss of the fixed sleeve 4, which limits the Moving the location prevented such serious consequences from happening.

The elastic member 3 can be an existing widely used device with an elastic function. Here, a compression spring is used instead. On the first boss, the other end leans against the second boss of the telescopic sleeve 5 .

The telescopic sleeve 5, which exposes the part of the fixed sleeve 4, is provided with at least one radial through hole on the end surface close to the installation cylindrical pin, and the radial through holes are evenly arranged in the same radial section, with a diameter of The distance between the cross-section and the end face is less than the length of a cylindrical pin. Here, four radial through holes are used as an embodiment, and the through holes provided are located in the same plane in the radial direction, and the magnet 6 , is arranged in the radial through hole, and does not expose the outside of the radial through hole, to a certain extent avoids damage to the 6 protruding magnets caused by punching during use.

Connect the adapter handle 1 to the pneumatic tool or hydraulic tool, and it is stable and reliable. Install the elastic cylindrical pin used in the telescopic sleeve 5 on the device. Since the magnet 6 inside the telescopic sleeve 5 generates magnetic force, the cylindrical pin Adsorbed inside the telescopic sleeve 5 , the top of the punching pin 2 has a limited positioning boss 7 , one end of the cylindrical pin is closely attached to the positioning boss 7 , and the other end is exposed outside the telescopic sleeve 5 .

As shown in Figure 3, Figure 4, Figure 5 and Figure 6, due to the adsorption force of the magnet 6, the cylindrical pin is not easy to fall from the device, so it is very convenient to move. The elastic cylindrical pin extends into the hole of the workpiece, and at the same time, the front end of the telescopic sleeve 5 is firmly pressed against the workpiece, and the pneumatic tool is started to do work. The shank 1 and the punching pin 2 produce an impact force on the cylindrical pin as a whole. Since the telescopic sleeve 5 can move in the axial direction, the impact force will cause displacement on the cylindrical pin, and the cylindrical pin will be pushed into the working hole. At this time, the external pneumatic tool is completed. In the working process, the compression spring 3 is deformed when the punching needle does work, and energy is stored. When the elastic cylindrical pin is driven into the workpiece, the pneumatic tool completes the work, and the compression spring 3 returns to its natural state and begins to work on the punching needle 2 to generate a restoring force. Returns the unit to a work-ready state, ready for the next use.

The elastic cylindrical pin assembly device is driven by external force and used in conjunction with tools with impact force, such as pneumatic hammer, electric hammer, mechanical hammer, etc. It is cylindrical in shape and has elastic expansion and contraction functions. One end is a transfer handle, and the transfer handle It is a cylindrical entity, used to connect the pneumatic hammer, and one end is a telescopic sleeve, which is used to clamp the elastic cylindrical pin. The telescopic sleeve can be stretched, and the elastic cylindrical pin is clamped in the telescopic sleeve. The unique magnetism will attract the elastic cylindrical pin in the telescopic sleeve, start the pneumatic hammer, and the impact force of the pneumatic hammer will drive the elastic cylindrical pin clamped at one end into the pin hole through the assembly of the elastic cylindrical pin. The operation is simple and the production efficiency is high.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (7)

1. elastic cylindrical pin assembling device, it is characterized in that, comprise transfer handle, towards pin, elastic component, fixed muffle and extension sleeve, described transfer handle one end is fastenedly connected with the device that produces impulsive force, the other end is fixedlyed connected with fixed muffle, described extension sleeve partly is included in the fixed muffle and can moves axially along fixed muffle, describedly be positioned at fixed muffle inside towards pin, be included in the extension sleeve towards pin one end, the other end is resisted against on the transfer handle, an end ring that is resisted against transfer handle towards pin is circumferentially with first boss around this end, described elastic component is set on pin, elastic component one end is resisted against on first boss of pin, and the other end is resisted against extension sleeve and is positioned on the end face of fixed muffle inside.

2. elastic cylindrical pin assembling device according to claim 1, it is characterized in that, the end upper edge that described extension sleeve is positioned at fixed muffle inside is circumferentially with second boss, and the end inwall upper edge that described fixed muffle holds extension sleeve is circumferentially with the 3rd boss that matches with second boss.

3. elastic cylindrical pin assembling device according to claim 1 is characterized in that, described extension sleeve is positioned on the radial section of an end of fixed muffle outside and evenly is provided with at least one radial direction through hole, is provided with a magnet in each radial direction through hole.

4. elastic cylindrical pin assembling device according to claim 3 is characterized in that, the distance between the end end face of described radial section and installation straight pin is less than a straight pin length.

5. elastic cylindrical pin assembling device according to claim 1 is characterized in that, described elastic component is the compression spring.

6. elastic cylindrical pin assembling device according to claim 1 is characterized in that, also comprises the positioning boss that is used to limit the straight pin position on the described end end face that is positioned at extension sleeve inside towards pin.

7. elastic cylindrical pin assembling device according to claim 1 is characterized in that, described fixed muffle adopts with transfer handle and is threaded.

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