CN212145209U

CN212145209U - Press fitting tool

Info

Publication number: CN212145209U
Application number: CN202020796321.8U
Authority: CN
Inventors: 陈铨
Original assignee: Longfa Machinery Co ltd Chengd
Current assignee: Longfa Machinery Co ltd Chengd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-12-15
Anticipated expiration: 2030-05-14

Abstract

The utility model discloses a pressfitting frock belongs to the equipment assembling field. The pressing tool comprises a lower pressing part and an upper pressing part, wherein the lower pressing part comprises a base with a workpiece mounting part, two vertical jacking blocks which are axisymmetric and at least two guide posts are arranged on the base, and the surfaces of the two vertical jacking blocks which are deviated from each other are inclined planes; the upper press fit portion comprises a first base plate sleeved on the guide post, a positioning block is arranged on the bottom surface of the first base plate, two sliding blocks are mounted at two ends of the first base plate through sliding rails arranged on the first base plate, a first spring is mounted between one end, close to the center of the first base plate, of each sliding block and the first base plate, one end, away from the center of the first base plate, of each sliding block is an arc-shaped portion matched with the inclined plane, and one end, close to the center of the first base plate, of each sliding block is a supporting portion matched. The rubber pad is automatically installed in the workpiece in a pressing mode based on the matching of the lower pressing portion and the upper pressing portion, and therefore working efficiency is improved.

Description

Press fitting tool

Technical Field

The utility model relates to a device assembly field, concretely relates to pressfitting frock.

Background

At present, in the assembly process of a plurality of devices, a rubber gasket with a bulge at one end needs to be installed in a workpiece, and particularly in the field of automobile assembly, a rubber gasket with an annular bulge at one end needs to be installed in a supporting seat. However, at present, the step is mostly completed manually, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

Not enough to the above among the prior art, the utility model aims at providing a pressfitting frock has the installation effectiveness of bellied rubber pad in order to improve one end.

In order to achieve the purpose of the invention, the utility model adopts the technical scheme that:

the utility model provides a pressfitting frock, it includes pressfitting portion and last pressfitting portion down, and pressfitting portion is provided with two vertical kicking blocks and two piece at least guide posts that are axisymmetric including the base that has the work piece installation department down on the base, and the one side that two vertical kicking blocks deviate from mutually is the inclined plane.

The upper press fit portion comprises a first base plate sleeved on the guide post, a positioning block is arranged on the bottom surface of the first base plate, two sliding blocks are mounted at two ends of the first base plate through sliding rails arranged on the first base plate, a first spring is mounted between one end, close to the center of the first base plate, of each sliding block and the first base plate, one end, away from the center of the first base plate, of each sliding block is an arc-shaped portion matched with the inclined plane, and one end, close to the center of the first base plate, of each sliding block is a supporting portion matched.

The utility model has the advantages that: the rubber pad is automatically installed in the workpiece in a pressing mode based on the matching of the lower pressing portion and the upper pressing portion, and therefore working efficiency is improved.

Drawings

Fig. 1 is a schematic front view illustrating a press-fitting tool applied in an embodiment;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a rear view of FIG. 1;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 1;

FIG. 6 is a three-dimensional view of the first perspective of FIG. 1;

FIG. 7 is a three-dimensional view from a second perspective of FIG. 1;

FIG. 8 is a schematic view of a front support cushion of a cab of a vehicle of a certain type;

FIG. 9 is a schematic view of a workpiece (i.e., a support base) engaged with the front support cushion of the cab shown in FIG. 8;

FIG. 10 is a cross-sectional view taken along line A-A of FIG. 2

FIG. 11 is a schematic three-dimensional structure of the slider of FIG. 1;

fig. 12 is a schematic three-dimensional structure diagram of the first substrate in fig. 1.

Wherein, 1, a second substrate; 2. a rubber pad; 3. a first substrate; 4. a slider; 5. a guide post; 6. a vertical top block; 7. a supporting seat; 8. positioning blocks; 9. a base; 10. a strut; 11. a screw; 12. a support plate; 13. a first stopper; 14. a second spring; 15. a first spring; 16. a second limiting block; 17. a third spring; 18. an arc-shaped portion; 19. a support portion; 20. a slide rail; 21. and (4) pin sleeves.

Detailed Description

The following detailed description of the present invention will be made with reference to the accompanying drawings so as to facilitate the understanding of the present invention by those skilled in the art. It should be understood that the embodiments described below are only some embodiments of the invention, and not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive step, without departing from the spirit and scope of the present invention as defined and defined by the appended claims, fall within the scope of protection of the invention.

As shown in fig. 1 to 3, the press-fit tool comprises a lower press-fit portion and an upper press-fit portion, the lower press-fit portion comprises a base 9 with a workpiece mounting portion, two vertical jacking blocks 6 which are axisymmetric and at least two guide columns 5 are arranged on the base 9, and one surfaces of the two vertical jacking blocks 6 which are deviated from each other are inclined surfaces.

As shown in fig. 4 and 5, the upper press-fit portion includes a first substrate 3 sleeved on the guide post 5, a positioning block 8 is disposed on the bottom surface of the first substrate 3, two sliding blocks 4 are mounted at two ends of the first substrate 3 through a sliding rail 20 formed thereon, a first spring 15 is mounted between one end of each sliding block 4 close to the center of the first substrate 3 and the first substrate 3, an arc portion 18 matched with the inclined surface is disposed at one end of each sliding block 4 far away from the center of the first substrate 3, and a supporting portion 19 located below the first substrate 3 and matched with the protrusion at the end of the rubber pad 2 is disposed at one end of each sliding block 4 close to the center of the first substrate 3.

The working principle of the pressing tool is as follows:

under the action of an external driving mechanism, the first substrate 3 makes reciprocating linear motion along the guide columns 5, and after one reciprocating period is finished, the pressing and mounting of the rubber pad 2 and the workpiece are completed.

In one reciprocating cycle, first, the workpiece is mounted on the workpiece mount, and the rubber pad 2 is mounted on the press-fit portion (the rubber pad 2 is mounted by holding and moving the rubber pad 2 until the top edge of the rubber pad 2 abuts against the positioning block 8, so that the projection of the end of the rubber pad 2 is located at a set position between the support 19 and the bottom of the first substrate 3 (the rubber pad 2 is held stationary under the support of the support 19).

Then under the action of an external driving mechanism, the first substrate 3 moves downwards along the guide posts 5, and the first substrate 3 drives the positioning block 8, the sliding block 4 and the rubber pad 2 to synchronously move downwards. In the downward movement process, under the action of the inclined surface of the vertical top block 6, the sliding block 4 moves along the sliding rail 20 in the direction away from the center of the first substrate 3, so that the rubber pad 2 is pressed into the workpiece under the action of the first substrate 3 after being separated from the supporting part 19.

Finally, under the action of the external driving mechanism, the first substrate 3 moves upwards along the guide post 5, the first substrate 3 drives the positioning block 8 and the sliding block 4 to move upwards synchronously, and in the process of moving upwards, under the action of the first spring 15, the sliding block 4 moves to an initial position along the sliding rail 20 in a direction close to the center of the first substrate 3 to prepare for installing the next rubber pad 2.

As shown in fig. 4 and 5, in order to facilitate quick mounting of the workpiece and prevent the workpiece mounting portion from affecting the pressing of the rubber pad 2, the base 9 includes a base and a support plate 12 mounted on the base and having a first through hole; the workpiece mounting part comprises a first limiting block 13 with a T-shaped cross section, a step matched with the first limiting block 13 is arranged on the first through hole, and a second spring 14 is placed in the first through hole between the first limiting block 13 and the base.

When a workpiece needs to be installed, the first limiting block 13 extends out of the top surface of the supporting plate 12 under the action of the second spring 14, so that the workpiece can be quickly positioned and installed. When the chamber for accommodating the rubber pad 2 in the workpiece is circular, the outer profile of the cross section of the portion of the first stopper 13 located outside the support plate 12 is also circular with a corresponding size.

As shown in fig. 1 and 2, in order to meet the requirement of the relative position relationship between the rubber pad 2 and the workpiece, the lower press-fit portion further includes a screw 11 and a support rod 10 having a strip-shaped hole and disposed on the side surface of the base 9, the screw 11 is mounted on the support rod 10 through two nuts (the nuts are not shown in the drawing) which are engaged with the screw 11 and respectively located on two sides of the strip-shaped hole, and the workpiece is more accurately positioned and fixed (i.e., the mounted workpiece is kept in a set posture) by abutting against one end of the support rod 10.

As shown in fig. 4, 6 and 7, the vertical top block 6 is installed at the side of the support plate 12, and the guide post 5 is installed at the top of the support plate 12. In addition, in order to further accelerate the installation speed of the workpiece, a guide corner is formed at the top edge of the first limiting block 13, and an air hole is formed in the first limiting block 13.

Correspondingly, in the case where there is a gap in the annular projection of the rubber pad 2 as shown in fig. 8, the rubber pad 2 is mounted on the upper press-fit portion at a higher speed while achieving accurate press-fitting of the rubber pad 2 to the support base 7 as shown in fig. 9. Go up nip portion and still include that the cross-section is the second stopper 16 of T type and install the second base plate 1 (being connected through the screw thread pair between first base plate 3 and the second base plate 1) at first base plate 3 top surface, the recess of installation second stopper 16 is seted up to the one side that second base plate 1 is close to first base plate 3, third spring 17 has been placed between the one end that second stopper 16 is close to first base plate 3 and the recess, the one end that first base plate 3 was kept away from to second stopper 16 runs through the bar hole of seting up on the first base plate 3.

When rubber pad 2 is mounted on the upper press-fit portion, rubber pad 2 is held and moved toward the gap between support portion 19 and first substrate 3 (it is not necessary to align the gap on rubber pad 2 with the portion of second stopper 16 extending below first substrate 3) until rubber pad 2 cannot move forward under the action of positioning block 8. If the two are aligned and clamped initially, the rubber pad 2 and the upper pressing part are installed; if the two are initially misaligned (the part of the second stopper 16 extending to the lower part of the first substrate 3 is pushed into the strip-shaped hole on the first substrate 3 by the rubber pad 2), the rubber pad 2 is rotated until the two are aligned and engaged under the action of the third spring 17, thereby completing the installation of the rubber pad 2 and the upper press-fit part.

As shown in fig. 10, in order to avoid the reduction of the pressing precision due to the abrasion of the guide post 5 or the first substrate 3 after a long-term use, a pin bush 21 is provided between the guide post 5 and the first substrate 3, and the pressing precision is maintained by replacing the abraded pin bush 21.

The schematic structural diagrams of the slider 4 and the first substrate 3 are shown in fig. 11 and 12, respectively. Regarding the installation of the first spring 15, one end of the first spring 15 is fixedly connected to the slider 4 through a first horizontal shaft installed on the slider 4, and the other end of the first spring 15 is fixedly connected to the first substrate 3 through a second horizontal shaft installed on the first substrate 3. A first transverse shaft is mounted in the lateral bore shown in fig. 11 and a second transverse shaft is mounted in the lateral bore shown in fig. 12.

Claims

1. The pressing tool is characterized by comprising a lower pressing part and an upper pressing part, wherein the lower pressing part comprises a base (9) with a workpiece mounting part, two vertical jacking blocks (6) which are axisymmetric and at least two guide columns (5) are arranged on the base (9), and one surface of each vertical jacking block (6) which is deviated from the other surface is an inclined surface;

go up nip portion including the cover establish first base plate (3) on guide post (5), first base plate (3) bottom surface is provided with locating piece (8), two slider (4) are installed through slide rail (20) of seting up on it at first base plate (3) both ends, and install first spring (15) between slider (4) one end and first base plate (3) that is close to first base plate (3) center, slider (4) keep away from first base plate (3) center one end be with inclined plane complex arc portion (18), slider (4) one end that is close to first base plate (3) center be located first base plate (3) below, and with protruding complex supporting part (19) of rubber pad (2) tip.

2. The pressing tool according to claim 1, wherein the base (9) comprises a base and a support plate (12) which is arranged on the base and provided with a first through hole; the workpiece mounting part comprises a first limiting block (13) with a T-shaped cross section, a step matched with the first limiting block (13) is arranged on the first through hole, and a second spring (14) is placed in the first through hole between the first limiting block (13) and the base.

3. The pressing tool according to claim 2, wherein the vertical top block (6) is mounted on the side surface of the support plate (12), and the guide column (5) is mounted on the top surface of the support plate (12).

4. The pressing tool according to claim 2, wherein a chamfer is formed at the top edge of the first limiting block (13), and the first limiting block (13) is provided with an air hole.

5. The pressing tool according to claim 1, wherein the lower pressing portion further comprises a screw (11) and a support rod (10) provided with a strip-shaped hole and arranged on the side surface of the base (9), and the screw (11) is mounted on the support rod (10) through two nuts which are matched with the screw (11) and respectively located on two sides of the strip-shaped hole.

6. The pressing tool according to claim 1, wherein a pin sleeve (21) is arranged between the guide post (5) and the first substrate (3).

7. The pressing tool according to any one of claims 1 to 6, wherein the upper pressing portion further comprises a second limiting block (16) with a T-shaped cross section and a second substrate (1) mounted on the top surface of the first substrate (3), a groove for mounting the second limiting block (16) is formed in one surface, close to the first substrate (3), of the second substrate (1), a third spring (17) is placed between one end, close to the first substrate (3), of the second limiting block (16) and the groove, and one end, far away from the first substrate (3), of the second limiting block (16) penetrates through a strip-shaped hole formed in the first substrate (3).