CN220347661U - Pin press-fit device - Google Patents

Pin press-fit device Download PDF

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Publication number
CN220347661U
CN220347661U CN202321755007.5U CN202321755007U CN220347661U CN 220347661 U CN220347661 U CN 220347661U CN 202321755007 U CN202321755007 U CN 202321755007U CN 220347661 U CN220347661 U CN 220347661U
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China
Prior art keywords
pin
press
product
mounting
fit
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Application number
CN202321755007.5U
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Chinese (zh)
Inventor
张作成
乐廉夫
张作俊
王强
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Zhuhai Junxing Electromechanical Co ltd
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Zhuhai Junxing Electromechanical Co ltd
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Priority to CN202321755007.5U priority Critical patent/CN220347661U/en
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Abstract

The utility model provides a pin press-fit device which is used for press-fitting a pin on a product and comprises a pin press-fit assembly and a product installation assembly, wherein a pin installation part and a first guide part of the pin press-fit assembly are adjacently arranged, and a driving part drives the pin installation part and the first guide part to reciprocate along a first direction; the mounting table of the product mounting assembly is positioned in the first direction of the pin mounting part, a limiting part is arranged in the direction of the mounting table towards the pin mounting part, the limiting part surrounds a mounting station for fixing a product and is provided with a narrow opening connected with the mounting station, a rotation stopping part for limiting circumferential movement of the product is arranged in the direction of the mounting station towards the pin mounting part, and the first guiding part and the second guiding part are in plug-in fit in the first direction. The pin press-fit device provided by the utility model ensures accurate pin press-fit positioning and high precision, can uniformly press the pin into the pin hole of a product under the force, improves the pin press-fit efficiency, and ensures the product quality.

Description

Pin press-fit device
Technical Field
The utility model relates to the technical field of machining, in particular to a pin press-fit device.
Background
The pin is an indispensable accessory in the production industry, and the pin is often required to be in interference fit with a pin hole of a product to form a hinge structure; the existing pin assembling jig is used for manually pre-assembling the pin on a pin hole of a product and then pressing the pin to a designated position by using a pressing jig.
Because the product and the pin are smaller, the pin is difficult to position, the pin is easy to eccentric, the assembly precision is low, the assembly efficiency is low, and the labor intensity is high; and the positioning of the pin is inaccurate, so that the pin is easy to bend and deform due to uneven stress, and the product is scrapped.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide the pin press-fit device with high precision, which ensures that the pin press-fit positioning is accurate and has high precision, can uniformly press the pin into the pin hole of a product, improves the pin press-fit efficiency and ensures the product quality.
The utility model provides a pin press-fit device for press-fitting a pin onto a product, comprising: the pin press-fit assembly comprises a driving part, a pin installation part and a first guide part, wherein the pin installation part and the first guide part are adjacently arranged, and the driving part drives the pin installation part and the first guide part to reciprocate along a first direction; and the product installation component comprises an installation table and a second guide part, wherein the installation table is positioned on the first direction of the pin installation part, a limiting part is arranged on the direction of the installation table towards the pin installation part, the limiting part surrounds an installation station used for fixing the product and is provided with a narrow opening connected with the installation station, a rotation stopping part used for limiting the circumferential movement of the product is arranged on the direction of the installation station towards the pin installation part, and the first guide part is in plug-in fit with the second guide part in the first direction.
In a preferred embodiment of the present utility model, a pin mounting hole is provided in the direction of the pin mounting portion toward the mounting table, a side hole communicating with the pin mounting hole is provided in the side portion, and an absorbing member is mounted in the side hole, wherein the force of engagement between the pin and the pin hole is greater than the force of absorption of the pin by the absorbing member.
In a further preferred embodiment of the present utility model, the pin press-fit assembly further includes an upper positioning plate, the pin mounting portion is fixed to a middle region of the upper positioning plate, and the first guide portion is fixed to four diagonal regions of the upper positioning plate.
In a further preferred embodiment of the present utility model, the pin press-fit assembly further includes a driving connector, the driving connector is connected to the driving portion, the driving connector is fixed to the upper positioning plate, and the driving connector is located in a direction of the pin mounting portion facing away from the mounting table.
In a further preferred embodiment of the present utility model, the pin mounting portion is fixed to the upper positioning plate along the first direction by a first connector, and the driving connector is laterally fixed to the upper positioning plate by a second connector.
In a preferred embodiment of the present utility model, the first guide portion is a column having a T-shaped cross section.
In a preferred embodiment of the present utility model, the product mounting assembly further includes a lower positioning plate, the mounting table and the second guide portion are fixed to the lower positioning plate, the mounting table is fixed to a middle region of the lower positioning plate, and the second guide portion is fixed to four diagonal regions of the lower positioning plate.
In a further preferred embodiment of the utility model, the product mounting assembly further comprises an auxiliary plate, the auxiliary plate being secured to the lower positioning plate by a third connection, the mounting table being secured to the auxiliary plate by a fourth connection.
In a further preferred embodiment of the utility model, the auxiliary plate is further fixed to the lower positioning plate by fifth connecting members, the third connecting members being connected at two opposite corners of the auxiliary plate, and the fifth connecting members being connected at a central region of the auxiliary plate.
In a further preferred embodiment of the present utility model, the second guide portion is a sleeve having a T-shaped cross section.
Compared with the prior art, the utility model has the beneficial effects that:
the pin press-fit device provided by the utility model is used for performing pin press-fit, firstly, the pin is installed in the pin installation part, then, the product is fixed in the installation station of the installation table, the product is limited and fixed by the installation station and the connected narrow opening, further, the product fixed in the installation station is inserted by the rotation stopping part, the rotation stopping part and the product limit prevent the product from rotating in the installation station, namely, the product is precisely positioned and installed through the installation table, the pin hole on the product and the pin installed in the pin installation part are ensured to be in a positive corresponding state, at the moment, the driving part provides driving force to enable the first guide part and the second guide part to be in plug-in fit in the first direction, so that the pin installation part precisely faces the product conveying pin fixed in the installation station, the pin is press-fit into the pin hole of the product, and after the press-fit is completed, the pin installation part and the first guide part are reset to wait for the pin press-fit of the next product. The pin press-fit device ensures accurate pin press-fit positioning and high precision, can uniformly press the pin into the pin hole of the product by force, improves pin press-fit efficiency, and ensures product quality.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure and/or process particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
Fig. 1 is a schematic structural diagram of a pin press-fitting device (pins are press-fitted to products) according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a pin press-fit assembly according to an embodiment of the present utility model;
FIG. 3 is an exploded view of a pin press-fit assembly according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a product mounting assembly according to an embodiment of the present utility model;
FIG. 5 is an exploded view of a product mounting assembly according to an embodiment of the present utility model;
FIG. 6 is a schematic diagram of a product (after pin press-fitting) according to an embodiment of the present utility model;
FIG. 7 is a schematic view of another view of a product according to an embodiment of the present utility model (after pin press-fitting);
FIG. 8 is an exploded view of the structure of the product (after pin press fitting) according to the present utility model;
reference numerals illustrate:
1-a pin press-fit device;
10-pin press-fit components, 11-pin mounting parts, 111-pin mounting holes, 112-side holes, 12-first guide parts, 13-upper positioning plates, 13 a-first through holes, 14-driving connectors, 15-first connecting pieces and 16-second connecting pieces;
20-a product mounting assembly, 21-a mounting table, 21 a-a limiting part, 21 b-a sixth connecting piece, 211-a mounting station, 212-a narrow opening, 213-a rotation stopping part, 22-a second guiding part, 23-a lower positioning plate, 23 a-a second through hole, 24-an auxiliary plate, 25-a third connecting piece, 26-a fourth connecting piece and 27-a fifth connecting piece;
2-pins;
3-product, 3 a-upper face, 3 b-peripheral face, 3 c-bottom face, 3-1-pin holes, 3-2-inner cavity, 3-2 a-first wall, 3-2 b-second wall;
Detailed Description
The following will describe embodiments of the present utility model in detail with reference to the drawings and examples, thereby solving the technical problems by applying technical means to the present utility model, and realizing the technical effects can be fully understood and implemented accordingly. It should be noted that these specific descriptions are only for easy and clear understanding of the present utility model by those skilled in the art, and are not meant to be limiting; for example, the first and second embodiments of the present utility model are not limited thereto, but are merely for describing serial numbers of a plurality of identical or similar devices and mechanisms, and those skilled in the art may readjust the serial numbers for convenience of description or in the technical scheme arranging process; also, alternative embodiments have been described for some of the mechanisms, and these alternatives may be applied to other similar or identical devices and mechanisms; and as long as no conflict is formed, each embodiment of the present utility model and each feature of each embodiment may be combined with each other, and the formed technical solutions are all within the protection scope of the present utility model.
The following describes the technical scheme of the utility model in detail through the attached drawings and specific embodiments:
examples
Referring to fig. 1-5, the present embodiment provides a high precision pin press-fit device 1 for press-fitting a pin 2 onto a product 3, the pin press-fit device 1 including a pin press-fit assembly 10 and a product mounting assembly 20, the pin press-fit device 1 being made of DC53 die tool steel.
As shown in fig. 6-8, for example, the product 3 in the present embodiment is in a substantially cylindrical shape, and the product 3 is 8620H low-carbon alloy steel material, which is applied to electric tools (impact wrenches); according to the view angle shown in fig. 6, the product 3 comprises an upper surface 3a, a peripheral surface 3b and a bottom surface 3c, wherein the upper surface 3a is uniformly provided with five pin holes 3-1, the number and the distribution of the pin holes 3-1 are determined according to practical requirements, the bottom surface 3c is provided with an 8-shaped inner cavity 3-2, and the inner cavity 3-2 comprises a first wall 3-2a and a second wall 3-2b which are oppositely arranged as shown in fig. 7.
With continued reference to fig. 1-5, in this embodiment, the pin press-fit assembly 10 includes a driving portion, a pin mounting portion 11 and a first guiding portion 12, where the pin mounting portion 11 and the first guiding portion 12 are disposed adjacently, and the driving portion may be a power source such as a motor, a cylinder, or the like, and the driving portion drives the pin mounting portion 11 and the first guiding portion 12 to reciprocate along a first direction, preferably the first direction refers to an up-down direction.
In this embodiment, the product mounting assembly 20 includes a mounting table 21 and a second guiding portion 22, the mounting table 21 is located in a first direction of the pin mounting portion 11, a limiting portion 21a is disposed in a direction of the mounting table 21 toward the pin mounting portion 11, the mounting table 21 and the limiting portion 21a may be integrally formed, or the limiting portion 21a may be screwed to the mounting table 21 by a sixth connecting member 21b, the sixth connecting member 21b may be a screw, the limiting portion 21a surrounds more than 1/2 of an outer circumference of the product 3, the limiting portion 21a surrounds a mounting station 211 for fixing the product 3 (the pin is not press-fitted) on the mounting table 21 and has a narrow opening 212 connected with the mounting station 211, and the mounting station 211 is provided with a rotation stopping portion 213 for limiting a circumferential movement of the product 3 in a direction of the pin mounting portion 11, and the first guiding portion 12 is in a plug-in engagement with the second guiding portion 22 in the first direction.
In this embodiment, when the pin press-fitting device 1 is used for pressing the pin 2, the pin 2 is firstly installed in the pin installation portion 11, then the product 3 (the pin is not press-fitted) is fixed in the installation station 211 of the installation table 21, the product 3 is limited and fixed by the installation station 211 and the connected narrow opening 212, further, the product 3 fixed in the installation station 211 is inserted by the rotation stopping portion 213, the rotation stopping portion 213 is abutted and limited with the first wall 3-2a and the second wall 3-2b which are oppositely arranged in the inner cavity 3-2 of the product 3, so that the product 3 is prevented from rotating in the installation station 211, namely, the pin hole 3-1 on the product 3 and the pin 2 installed in the pin installation portion 11 are guaranteed to be in a right opposite state through the installation table 21, at this moment, the driving portion provides driving force to enable the first guide portion 12 and the second guide portion 22 to be in an inserting fit in a first direction, the pin installation portion 11 accurately conveys the pin 2 towards the product 3 fixed in the installation station 211, and the pin 2 is press-fitted in the product 3, and the pin 3 is conveniently pressed and fitted in a press-fitting mode after the pin 3 is pressed and fitted in the first guide portion 3, namely, the pin 2 is pressed and the pin 3 is conveniently pressed and fitted.
The pin press-fit device 1 ensures that the pin 2 is pressed and positioned accurately and precisely, can uniformly press the pin 2 into the pin hole 3-1 of the product 3, improves the press-fit efficiency of the pin 2, and ensures the quality of the product 3.
In this embodiment, preferably, five pin mounting holes 111 are provided in the direction of the pin mounting portion 11 facing the mounting table 21, and correspond to five pin holes 3-1 on the product 3 one by one, side portions of the pin mounting portion 11 are provided with side holes 112 communicating with the pin mounting holes 111, and each side hole 112 is provided with an absorbing member (not shown), which may be a magnet, wherein the force of engagement between the pin 2 and the pin hole 3-1 is greater than the force of the absorbing member on the pin 2, and the pin is stably mounted in the pin mounting portion 11 by the absorbing member, so as to avoid falling until the pin 2 is press-fitted into the pin hole 3-1 of the product 3, and the pin mounting portion 11 can be reversely separated from the pin 2 to smoothly complete the press-fitting of the pin 2.
In this embodiment, preferably, the pin press-fit assembly 10 further includes an upper positioning plate 13, the pin installation portion 11 is fixed in a middle area of the upper positioning plate 13, the four first guide portions 12 are fixed in four diagonal areas of the upper positioning plate 13, so that the overall structure of the pin press-fit assembly 10 is coordinated and does not interfere with each other, the four first guide portions 12 surround the pin installation portion 11, and the pin press-fit accuracy of the pin 2 in the pin installation portion 11 can be improved through guiding and positioning of the first guide portions 12 and the second guide portions 22.
In this embodiment, preferably, the pin press-fit assembly 10 further includes a driving connector 14, the driving connector 14 is connected with the driving portion, the driving connector 14 is fixed on the upper positioning plate 13, and the driving connector 14 is located in a direction of the pin installation portion 11 opposite to the installation table 21, and the driving connector 14 is ingenious in structural arrangement, and after being connected with the driving portion to receive driving force, the driving connector 14 drives the pin installation portion 11 to press-fit the pin 2 towards the product 3, so that the driving effect is good.
In this embodiment, preferably, the pin mounting portion 11 is vertically fixed on the upper positioning plate 13 through the first connecting piece 15, and the driving connector 14 is laterally fixed on the upper positioning plate 13 through the second connecting piece 16, wherein the first connecting piece 15 and the second connecting piece 16 may be bolts, and the second connecting piece 16 does not interfere with the first connecting piece 15, so that the pin mounting portion 11 and the driving connector 14 are smoothly fixed on the upper positioning plate 13.
In this embodiment, preferably, the first guiding portion 12 is a cylinder with a T-shaped cross section, correspondingly, the four diagonal areas of the upper positioning plate 13 are provided with first through holes 13a, the first through holes 13a are fixedly installed on the first guiding portion 12 after being heated to 150 ℃ by the low-temperature oven, and connection stability between the first guiding portion 12 and the upper positioning plate 13 is ensured by utilizing the principle of thermal expansion and cold contraction.
In this embodiment, preferably, the product mounting assembly 20 further includes a lower positioning plate 23, the mounting table 21 and the second guiding portion 22 are fixed on the lower positioning plate 23, the mounting table 21 is fixed on a middle area of the lower positioning plate 23, and the second guiding portion 22 is fixed on four diagonal areas of the lower positioning plate 23, so that the product mounting assembly 20 is coordinated in overall structure and not interfered with each other, the second guiding portion 22 surrounds the mounting table 21 everywhere, and the press-fit accuracy of the pin hole 3-1 of the product 3 on the mounting table 21 by the pin 2 can be improved through guiding and positioning of the first guiding portion 12 and the second guiding portion 22.
In this embodiment, the product mounting assembly 20 preferably further includes an auxiliary plate 24, the auxiliary plate 24 is fixed to the lower positioning plate 23 through a third connecting member 25, the mounting table 21 is fixed to the auxiliary plate 24 through a fourth connecting member 26, wherein the third connecting member 25 and the fourth connecting member 26 may be screws, and when assembling, the mounting table 21 is fixed to the auxiliary plate 24 through the fourth connecting member 26, and then the auxiliary plate 24 is fixed to the lower positioning plate 23 through the third connecting member 25, so that the fixing of the mounting table 21 is facilitated, and meanwhile, the lower positioning plate 23 and the auxiliary plate 24 are formed into a whole, so that the rigidity is good, and the stability of the product 3 in the mounting table 21 can be improved.
In this embodiment, preferably, the auxiliary board 24 is further fixed to the lower positioning board 23 by the fifth connecting member 27, the third connecting member 25 is connected to two opposite corners of the auxiliary board 24, the fifth connecting member 27 is connected to a middle region of the auxiliary board 24, and the fifth connecting member 27 may be a pin, as set forth above, which can stably mount the auxiliary board 24 on the lower positioning board 23, further improving the stability of the mounting of the product 3 in the mounting table 21.
In this embodiment, preferably, the second guiding portion 22 is a shaft sleeve with a T-shaped cross section, and correspondingly, the four diagonal areas of the lower positioning plate 23 are provided with second through holes 23a, and the second through holes 23a are fixedly installed with the second guiding portion 22 after being heated to 150 ℃ by the low-temperature oven, so that the connection stability between the second guiding portion 22 and the lower positioning plate 23 is ensured by utilizing the principle of thermal expansion and cold contraction.
Finally, it should be noted that the above description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way. Any person skilled in the art can make many possible variations and simple substitutions to the technical solution of the present utility model by using the methods and technical matters disclosed above without departing from the scope of the technical solution of the present utility model, and these all fall into the scope of protection of the technical solution of the present utility model.

Claims (10)

1. A pin press-fit device for press-fitting a pin onto a product, comprising:
the pin press-fit assembly comprises a driving part, a pin installation part and a first guide part, wherein the pin installation part and the first guide part are adjacently arranged, and the driving part drives the pin installation part and the first guide part to reciprocate along a first direction; the method comprises the steps of,
the product installation component, it includes mount table and second guiding portion, the mount table is located the pin installation department the first direction, just the mount table orientation be provided with spacing portion in the direction of pin installation department, spacing portion encircles and forms and be used for fixing the installation station of product and have with the narrow mouth that the installation station meets, just the installation station orientation be equipped with in the direction of pin installation department and be used for restricting the rotation stopping portion of product circumferential movement, first guiding portion with the second guiding portion is in the cooperation of pegging graft in the first direction.
2. The pin press-fit device according to claim 1, wherein the pin mounting portion is provided with a pin mounting hole in a direction toward the mounting table, a side portion is provided with a side hole communicating with the pin mounting hole, and an absorbing member is installed in the side hole, wherein a fitting force between the pin and the pin hole is larger than an absorbing force of the absorbing member to the pin.
3. The pin press-fit device according to claim 2, wherein the pin press-fit assembly further comprises an upper positioning plate, the pin mounting portion is fixed to a middle region of the upper positioning plate, and the first guide portion is fixed to four diagonal regions of the upper positioning plate.
4. A pin press-fit device according to claim 3, wherein the pin press-fit assembly further comprises a driving connector, the driving connector is connected with the driving portion, the driving connector is fixed on the upper positioning plate, and the driving connector is located in a direction of the pin mounting portion facing away from the mounting table.
5. The pin press-fit device according to claim 4, wherein the pin mounting portion is fixed to the upper positioning plate in the first direction by a first connecting member, and the driving connector is laterally fixed to the upper positioning plate by a second connecting member.
6. A pin press-fit device according to claim 3, wherein the first guide portion is a cylinder having a T-shaped cross section.
7. The pin press-fit device according to any one of claims 1 to 6, wherein the product mounting assembly further comprises a lower positioning plate, the mounting table, the second guide portion being fixed to the lower positioning plate, the mounting table being fixed to a middle region of the lower positioning plate, the second guide portion being fixed to four diagonal regions of the lower positioning plate.
8. The pin press-fit device according to claim 7, wherein the product mounting assembly further comprises an auxiliary plate fixed to the lower positioning plate by a third connecting member, and the mounting table is fixed to the auxiliary plate by a fourth connecting member.
9. The pin press-fit device according to claim 8, wherein the auxiliary plate is further fixed to the lower positioning plate by fifth connection members, the third connection members being connected at both opposite corners of the auxiliary plate, the fifth connection members being connected at a central region of the auxiliary plate.
10. The pin press-fit device according to claim 6, wherein the second guide portion is a sleeve having a T-shaped cross section.
CN202321755007.5U 2023-07-05 2023-07-05 Pin press-fit device Active CN220347661U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321755007.5U CN220347661U (en) 2023-07-05 2023-07-05 Pin press-fit device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321755007.5U CN220347661U (en) 2023-07-05 2023-07-05 Pin press-fit device

Publications (1)

Publication Number Publication Date
CN220347661U true CN220347661U (en) 2024-01-16

Family

ID=89507193

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321755007.5U Active CN220347661U (en) 2023-07-05 2023-07-05 Pin press-fit device

Country Status (1)

Country Link
CN (1) CN220347661U (en)

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