CN220128683U

CN220128683U - Pin pressing device

Info

Publication number: CN220128683U
Application number: CN202320953467.2U
Authority: CN
Inventors: 姜卸华
Original assignee: Zhejiang Kaichuang Electric Co ltd
Current assignee: Zhejiang Kaichuang Electric Co ltd
Priority date: 2023-04-23
Filing date: 2023-04-23
Publication date: 2023-12-05
Anticipated expiration: 2033-04-23

Abstract

The utility model relates to the technical field of mechanical assembly tools, in particular to a pin pressing device. The pin pressing device comprises a support, a press-fit assembly, a clamping part, a positioning seat, a guide part, an elastic part and an anti-rebound device, wherein the press-fit assembly is movably arranged on the support, the positioning seat is provided with a first accommodating cavity and a second accommodating cavity, the first accommodating cavity is communicated with the second accommodating cavity, the guide part is movably accommodated in the first accommodating cavity, the elastic part is arranged at the bottoms of the guide part and the first accommodating cavity, the anti-rebound device is partially accommodated in the second accommodating cavity, the anti-rebound device is in a first state and a second state which can be mutually converted, and when the anti-rebound device is in the second state, the anti-rebound device is blocked by the limiting part. According to the utility model, by arranging the rebound prevention device, the rebound phenomenon of the guide part in the installation process of the pin is effectively prevented, the workpiece to be assembled is prevented from falling, and the installation quality and the production efficiency are improved.

Description

Pin pressing device

Technical Field

The utility model relates to the technical field of mechanical assembly tools, in particular to a pin pressing device.

Background

In modern manufacturing, pins are a common type of fastener that is widely used for the attachment and securement of various mechanical devices. The pins are typically mounted by press fitting the pins into pre-set pin holes. However, in the press-fitting process, the pin is easily sprung back due to abrupt change of pressure, which not only causes falling of the assembly work, affects unstable installation quality, but also reduces production efficiency.

Disclosure of Invention

The object of the present utility model is to solve at least the problem of the pin easily rebounding during installation. The aim is achieved by the following technical scheme:

a first aspect of the present utility model proposes a press pin device comprising:

a bracket;

the press-fit assembly is movably arranged on the bracket;

the clamping component is arranged on the press-fit assembly;

the positioning seat is arranged on the bracket and corresponds to the press-fit assembly, a first accommodating cavity is formed in the positioning seat along the press-fit direction of the press-fit assembly, an opening of the first accommodating cavity corresponds to the clamping part, a second accommodating cavity perpendicular to the press-fit direction is formed in the positioning seat, and the first accommodating cavity is communicated with the second accommodating cavity;

the guide component is movably accommodated in the first accommodating cavity, one end of the guide component is provided with a limiting part, and the other end of the guide component passes through the opening of the first accommodating cavity;

an elastic member disposed between the guide member and a bottom of the first accommodation chamber;

the anti-rebound device is partially accommodated in the second accommodating cavity, the anti-rebound device is provided with a first state and a second state which can be mutually converted, the guide part can move along the press fitting direction when the anti-rebound device is in the first state, the limiting part is blocked by the anti-rebound device when the anti-rebound device is in the second state, and the guide part stops moving.

According to the utility model, the first accommodating cavity and the second accommodating cavity which are mutually communicated are formed in the positioning seat, the guide part is accommodated in the first accommodating cavity, the rebound prevention device is accommodated in the second accommodating cavity, the rebound prevention device is not contacted with the guide part in the first state, and the limit part of the guide part is blocked by the rebound prevention device in the second state, so that the guide part is limited to move. When the guide member is required to be moved, the rebound prevention device is controlled to be changed from the second state to the first state. According to the utility model, by arranging the rebound prevention device, the rebound phenomenon of the guide part in the installation process of the pin is effectively prevented, the workpiece to be assembled is prevented from falling, and the installation quality and the production efficiency are improved.

In addition, the pin pressing device according to the utility model can also have the following additional technical characteristics:

in some embodiments of the present utility model, the anti-rebound device is a T-shaped block, the T-shaped block is received at one end of the second receiving cavity and is rotatably disposed, rotation of the T-shaped block is used to control the anti-rebound device to switch between the first state and the second state, an end portion of the T-shaped block received at one end of the second receiving cavity is provided with a protrusion, and the protrusion is used to clamp the limiting portion when the anti-rebound device is in the second state.

In some embodiments of the utility model, the limiting portion is a circular truncated cone.

In some embodiments of the utility model, a boss structure is provided on an inner wall of the first accommodation chamber near the opening, the boss structure being used to restrict the guide member from passing through the opening.

In some embodiments of the utility model, the clamping member is provided with a circular groove for clearance fit of a pin structure to be press fitted, and a strong magnet is provided on the circumferential inner wall of the circular groove.

In some embodiments of the utility model, a spring is disposed between the clamping member and the press-fit assembly in a press-fit direction.

In some embodiments of the utility model, the press-fit assembly includes an upper top plate and a bearing, the upper top plate being disposed on the bracket by the bearing.

In some embodiments of the utility model, the device further comprises a backup plate, wherein the backup plate is connected with the positioning seat along the direction perpendicular to the press-fit direction.

In some embodiments of the utility model, the pin pressing device further comprises a base, and the bracket is disposed on the base.

In some embodiments of the present utility model, the base further comprises a positioning pin, and a positioning pin hole is formed in the base, and the positioning pin passes through the positioning pin hole and the second accommodating cavity.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

FIG. 1 schematically illustrates a partial cross-sectional view of a press pin apparatus according to an embodiment of the present utility model;

FIG. 2 schematically illustrates a schematic structural view of an anti-rebound device in a first state according to an embodiment of the present utility model;

FIG. 3 schematically illustrates a schematic structural view of an anti-rebound device in a second state according to an embodiment of the present utility model;

FIG. 4 schematically illustrates a schematic structural view of an anti-rebound device according to an embodiment of the present utility model;

FIG. 5 schematically illustrates a cross-sectional view of a clamping member according to an embodiment of the utility model;

fig. 6 schematically shows a schematic structural view of a guide member according to an embodiment of the present utility model.

The reference numerals are as follows:

100. a pin pressing device;

10. a bracket;

20. press-fitting the assembly; 21. an upper top plate; 22. a bearing; 23. a spring;

30. a clamping member; 31. a circular groove; 32. strong magnet;

40. a positioning seat; 41. a boss structure; 50. a guide member; 51. a limit part;

60. an elastic member; 70. an anti-rebound device; 71. a through hole; 80. a backup plate;

90. a base; 91. and (5) positioning pins.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

As shown in fig. 1 to 6, according to an embodiment of the present utility model, there is provided a press pin device 100, wherein the press pin device 100 includes a bracket 10, a press-fit assembly 20, a clamping member 30, a positioning seat 40, a guide member 50, an elastic member 60, and an anti-rebound device 70, the press-fit assembly 20 is movably disposed on the bracket 10, the clamping member 30 is disposed on the press-fit assembly 20, the positioning seat 40 is disposed on the bracket 10, and the positioning seat 40 is disposed corresponding to the press-fit assembly 20. The positioning seat 40 is provided with a first accommodating cavity along the press-fitting direction of the press-fitting assembly 20, an opening of the first accommodating cavity is correspondingly arranged with the clamping component 30, the positioning seat 40 is also provided with a second accommodating cavity perpendicular to the press-fitting direction, and the first accommodating cavity is communicated with the second accommodating cavity. The guide member 50 is movably accommodated in the first accommodating chamber, one end of the guide member 50 is provided with a limiting portion 51, and the other end of the guide member 50 passes through the opening of the first accommodating chamber. The elastic member 60 is disposed at the bottom of the guide member 50 and the first receiving chamber. The anti-rebound device 70 is partially accommodated in the second accommodating cavity, the anti-rebound device 70 has a first state and a second state which can be mutually converted, when the anti-rebound device 70 is in the first state, the guide member 50 can move along the press-fitting direction, and when the anti-rebound device 70 is in the second state, the anti-rebound device 70 clamps the limiting part 51, and the guide member 50 stops moving.

According to the utility model, the first accommodating cavity and the second accommodating cavity which are mutually communicated are formed in the positioning seat 40, the guide part 50 is accommodated in the first accommodating cavity, the rebound prevention device 70 is accommodated in the second accommodating cavity, the rebound prevention device 70 is not contacted with the guide part 50 in the first state, and the rebound prevention device 70 is clamped on the limiting part 51 of the guide part 50 in the second state, so that the guide part 50 is limited to move. When it is desired to activate the guide member 50, the anti-rebound device 70 is controlled to change from the second state to the first state. The utility model effectively prevents the rebound phenomenon of the guide part 50 during the installation of the pin, prevents the workpiece to be assembled from falling, and improves the installation quality and the production efficiency by arranging the rebound prevention device 70.

It will be appreciated that, as shown in fig. 1, the direction a in the drawing is the press-fitting direction.

Specifically, the elastic member 60 may be a spring 23, one end of the spring 23 is connected to the bottom of the guide member 50 along the press-fitting direction, and the other end of the spring 23 is connected to the bottom of the second accommodating chamber. The spring 23 allows one end of the guide member 50 to pass through the opening of the second receiving chamber, and the spring 23 allows the guide member 50 to return to the original position after receiving the pressing force.

In some embodiments, the anti-rebound device 70 is a T-shaped block or an L-shaped block with a simple structure, and the T-shaped block is provided with one more handle, so that the anti-rebound device is convenient for a user to operate. The T-block is rotatably disposed at one end of the second receiving chamber, and rotation of the T-block allows the anti-rebound device 70 to be switched between a first state and a second state. The end of the T-shaped block received in one end of the second receiving chamber has a protrusion that allows the anti-rebound device 70 to lock the limit portion 51 when in the second state.

Specifically, the T-shaped block is rotatably disposed, and can be accommodated in the side wall of one end of the second accommodating cavity for the T-shaped block, a through hole 71 is formed in the second accommodating cavity at a position corresponding to the bolt hole, a connecting shaft penetrates through the through hole 71 and is connected with the blind hole, and the T-shaped block can rotate in the second accommodating cavity.

Specifically, the second accommodating cavity is a rectangular through hole 71, the depth of the through hole 71 is the length of the T-shaped block accommodated at one end of the second accommodating cavity, and the length and width of the through hole 71 are slightly larger than those of the T-shaped block accommodated at one end of the second accommodating cavity, so that a space is reserved for rotation of the T-shaped block.

Specifically, the limiting portion 51 of the guide member 50 is a truncated cone. When the guide member 50 is pressed by the pin structure and moves downwards along the press-fitting direction, the round table also moves downwards, when the round table moves to the critical position, the T-shaped block rotates under the influence of gravity, the protrusion of the T-shaped block clamps the upper surface of the round table, and when the pressing force of the pin structure is removed, the round table cannot rise upwards due to the fact that the protrusion of the T-shaped block clamps the upper surface of the round table, and the pin structure is prevented from being ejected after the guide member 50 rises.

The inner wall of the first accommodating cavity is provided with a boss structure 41 at a position close to the opening of the second accommodating cavity. The boss structure 41 is provided to cooperate with the limiting portion 51 to prevent the guide member 50 from falling off due to the guide member 50 passing completely through the opening of the second receiving chamber.

In some embodiments, the rebound prevention device 70 may be a device that moves in the second receiving chamber in a direction perpendicular to the press-fit direction. Specifically, the anti-rebound device 70 is a cylinder, and an elastic member is disposed at an end of the cylinder exposed out of the second accommodating chamber, and the elastic member is connected to the bracket 10 or other fixed components, so that only the elastic force provided by the elastic member to the cylinder to move toward the first accommodating chamber is required. When in the first state, the cylinder abuts the elastic member 60 and does not enter the first accommodating chamber. When in the second state, the cylinder is pushed into the first accommodating chamber by the elastic force, and at this time, the cylinder is caught by the stopper 51 to prevent the guide member 50 from rising back.

It will be appreciated that the clamping member 30 is provided with a circular groove 31 for clearance fitting of the pin structure to be press fitted, the circumferential inner wall of the circular groove 31 being provided with a strong magnet 32. The pin structure to be press-fitted is in clearance fit with the circular groove 31, and is easily fallen off at this time, so that the strong magnet 32 is provided on the circumferential inner wall of the circular groove 31 to adsorb the pin structure to be press-fitted. And after the press-fitting is completed, when the pin structure and the clamping member 30 need to be separated, the attraction force of the strong magnet 32 is insufficient to bring out the pin structure from the pin hole with the press-fitting, so that the accuracy of the installation is ensured.

It will be appreciated that a spring 23 is provided between the clamping member 30 and the press-fit assembly 20 in the press-fit direction. The spring 23 is arranged between the top of the clamping component 30 along the press-fitting direction and the bottom of the press-fitting assembly 20, so that the clamping component 30 can stretch and retract in the press-fitting assembly 20, and the stretching and retracting is mainly used for leaving an adjusting space during press-fitting positioning. Such as press-fit assembly 20, but the pin structure and the pin hole to be installed in the case do not mate, and if not extended, the pin structure may come into hard contact with the case and damage the case. When the telescopic pin structure stretches inwards, the position of the box body can be adjusted, and the pin structure and the pin hole with the installation function are pressed down continuously. This reduces the damage rate of the press pin apparatus 100 to the case, and reduces the cost of press fitting.

It will be appreciated that the press-fit assembly 20 further includes an upper top plate 21 and a bearing 22, the upper top plate 21 being disposed on the bracket 10 by the bearing 22. The upper top plate 21 provides structural support to the press-fit assembly 20 and can provide press-fit force to the pin structure in the press-fit direction during press-fitting. The bearing 22 can enable the upper top plate 21 to be movably connected with the bracket 10, and when a force acts on the upper top plate 21 along the press-fitting direction, the upper top plate 21 is connected with the bracket 10 through the bearing 22, so that the upper top plate 21 also moves along the press-fitting direction. The pin structure on the press-fit assembly 20 is mounted in cooperation with the pin hole of the belt mount in the press-fit direction.

It will be appreciated that the pin press 100 further includes a backup plate 80, and the backup plate 80 is connected to the positioning seat 40 in a direction perpendicular to the press-fitting direction. The locating seat 40 provides a locating surface for the box body with the mounting pin, so that in order to make the box body more stable, a backup plate 80 is provided, the backup plate 80 is perpendicular to the press-fitting direction and the locating seat 40, the locating surface provided by the locating seat 40 is parallel to the press-fitting direction, and the locating surface provided by the backup plate 80 is perpendicular to the press-fitting direction, so that the box body is further located, and the press-fitting precision is improved.

It will be appreciated that the pin apparatus 100 further includes a base 90, and the bracket 10 is disposed on the base 90. Instead of the support frame 10 being arranged on the base 90, the support frame 10 may also be arranged directly fixedly on the work station, but this arrangement on the work station results in the pin means 100 not being movable. The bracket 10 is arranged on the base 90, and the pin pressing device 100 can move along with the base 90, so that the application range is enlarged.

Specifically, the pin pressing device 100 further includes a positioning pin 91, the base 90 is provided with a positioning pin hole, and the positioning pin 91 passes through the positioning pin hole and the second accommodating cavity, so that the second accommodating cavity is positioned along the press-fitting direction, the second accommodating cavity is prevented from being inclined, and the press-fitting efficiency is improved.

Specifically, the guide member 50 may be a guide pin, and one end of the guide pin received in the second receiving chamber has a circular truncated cone structure.

The method for pressing the pin in the pin pressing device 100 of this embodiment is that firstly, a box body with a pin to be installed is placed on the positioning seat 40, the pin hole of the box body is aligned with the top of the guide pin, then the pressing assembly 20 descends to drive the pin to enter the pin hole of the box body, the pin presses the guide pin at this time, when the guide pin descends to a certain position, the anti-rebound device 70 clamps the limiting part 51 at the lower part of the guide pin to prevent the guide pin from rebounding, then the box body with the pin installed is removed, the anti-rebound device 70 is loosened, the anti-rebound device 70 is restored to the first state, the rebound force of the elastic component 60 drives the guide pin to ascend to return to the initial position, and the pin is ready for next installation.

Specifically, the operator also switches the anti-rebound device 70 from the second state to the first state by rotating the anti-rebound device 70, releasing the guide pin.

In summary, the present embodiment provides a pin pressing device 100, which includes a positioning seat 40, a guide pin, a press-fitting assembly 20 and an anti-rebound device 70, and can effectively prevent the guide pin from rebounding, prevent the workpiece to be assembled from falling, and improve the production efficiency. The pin pressing device 100 has the advantages of simple structure, convenient operation, wide application range and higher practical value.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A pin pressing apparatus, comprising:

a bracket;

the press-fit assembly is movably arranged on the bracket;

the clamping component is arranged on the press-fit assembly;

2. The pin pressing device according to claim 1, wherein the anti-rebound device is a T-shaped block, the T-shaped block is accommodated at one end of the second accommodating cavity and is rotatably arranged, rotation of the T-shaped block is used for controlling the anti-rebound device to switch between the first state and the second state, a protrusion is arranged at an end portion of the T-shaped block accommodated at one end of the second accommodating cavity, and the protrusion is used for enabling the anti-rebound device to clamp the limiting portion when in the second state.

3. The pin pressing device according to claim 2, wherein the limiting portion is a circular truncated cone.

4. A pin pressing apparatus according to claim 3, wherein an inner wall of the first accommodation chamber is provided with a boss structure at a position close to the opening, the boss structure being for restricting the guide member from passing through the opening.

5. The pin pressing device according to claim 1, wherein the clamping member is provided with a circular groove for clearance-fitting a pin structure to be press-fitted, and a strong magnet is provided on a circumferential inner wall of the circular groove.

6. The press pin device according to claim 1, wherein a spring is provided between the clamping member and the press-fit assembly in a press-fit direction.

7. The press pin apparatus of claim 1, wherein the press fit assembly comprises an upper top plate and a bearing, the upper top plate being disposed on the bracket by the bearing.

8. The press pin apparatus of claim 1, further comprising a backup plate coupled to the positioning seat in a direction perpendicular to the press-fit direction.

9. The compression pin apparatus of claim 1, further comprising a base, the bracket being disposed on the base.

10. The pin pressing apparatus of claim 9, further comprising a dowel pin, wherein the base is provided with a dowel pin hole, and wherein the dowel pin passes through the dowel pin hole and the second receiving cavity.