Press-fitting positioning device for open bushing

Abstract

The utility model provides an opening lining press-fitting positioning device, which relates to the technical field of automobile part assembly and comprises a base, a limiting column used for limiting the position of a mounting hole of a swing arm is arranged on the base, a supporting plate is arranged at the top of the base, and a reducing mechanism is arranged on the supporting plate and located on the upper portion of the limiting column. The hole shrinkage mechanism comprises hole shrinkage blocks symmetrically arranged on the two sides of the supporting plate, the opposite faces of the two hole shrinkage blocks are each provided with a hole shrinkage groove used for compressing the opening lining, and the supporting plate is further provided with a driving piece used for driving the two hole shrinkage blocks to move in the direction close to each other at the same time. According to the press-fitting device, the press-fitting process of the open bushings can be facilitated, and the open bushings of different models can be subjected to press-fitting.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile parts assembly technical field, specifically, relate to an opening bush press -fitting positioning device. BACKGROUND

[0002] In order to reduce vibration and noise, many of the automobile chassis control arms are designed to adopt opening bush, and the current opening bush commonly used press -fitting method is to make opening bush pre -shrinking through the reducing diameter tool, and then press -fitting into the mounting hole of swing arm.

[0003] Referring to Figure 5 The prior art press -fitting positioning device includes positioning seat 4, reducing diameter sleeve 5 and positioning column 6, swing arm 7 is installed to positioning seat 4, reducing diameter sleeve 5 is installed to the upper portion of the mounting hole 72 of swing arm 7 and the position of reducing diameter sleeve 5 is fixed through positioning column 6, opening bush 8 is pressed into reducing diameter sleeve 5 through the pressure head of press -fitting equipment to make the diameter of opening bush 8 reduce, when opening bush 8 passes through reducing diameter sleeve 5, it can be press -fitting to the mounting hole 72 of swing arm 7.The defects of prior art are that: the wear condition of reducing diameter sleeve 5 needs to be checked before each press -fitting, and when press -fitting is carried out for different sizes of opening bush 8, different models of press -fitting positioning device need to be replaced, resulting in low work efficiency. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of opening bush press -fitting positioning device, it can be convenient to the press -fitting process of opening bush, and different models of opening bush can be press -fitting.

[0005] The utility model realizes by the following technical scheme: a kind of opening bush press -fitting positioning device, including base, the base is provided with the limiting post for limiting the mounting hole position of swing arm, the top of the base is provided with support plate, and the support plate is located the upper portion of limiting post and is provided with reducing diameter mechanism;

[0006] The reducing diameter mechanism includes reducing diameter block that is symmetrically arranged at the both sides of support plate, the side of the two reducing diameter blocks opposite to each other is all provided with reducing diameter groove for compressing opening bush, and the support plate is further provided with driving member for driving the two reducing diameter blocks to move to the direction of approaching each other.

[0007] Further, the driving member includes driving cylinder, the driving cylinder is fixedly arranged at the side of support plate away from limiting post, the piston rod of the driving cylinder is provided with driving plate, the both sides of the driving plate are provided with driving arm, the top of the reducing diameter block is provided with driving column, the side of the two driving arms approaching each other is all provided with inclined surface, when the driving plate moves to the direction of approaching limiting post, the driving arm can abut against driving column and drive the two reducing diameter blocks to move to the direction of approaching each other.

[0008] Further, a reset spring is connected between the two diameter-reducing blocks, and when the driving plate moves away from the limiting column, the reset spring can drive the two diameter-reducing blocks to move away from each other.

[0009] Further, the diameter-reducing groove comprises a center groove and flared grooves on both sides of the center groove.

[0010] Further, the flared groove is a slanted groove or an arc-shaped groove.

[0011] Further, a slide rail is arranged on the support plate, and a slide groove is arranged at the bottom of the diameter-reducing block and is connected to the slide rail.

[0012] Further, a bearing is arranged outside the driving column, the inner ring of the bearing is in interference fit with the driving column, and the outer ring of the bearing can abut against the driving arm.

[0013] Further, two limiting seats for limiting the position of the arm body of the swing arm are arranged on the support plate, a positioning bolt is arranged on the limiting seat, and a threaded hole for inserting the positioning bolt is arranged on the support plate.

[0014] Further, a waist-shaped hole is vertically arranged through the limiting seat, a sunk head is arranged at the top of the waist-shaped hole, and the positioning bolt is inserted into the waist-shaped hole and the head of the positioning bolt abuts against the sunk head.

[0015] The technical scheme of the utility model has at least the following advantages and beneficial effects:

[0016] The utility model discloses a diameter-reducing sleeve for an opening bushing, which comprises a sleeve body, a plurality of diameter-reducing blocks arranged on the sleeve body, a support plate arranged on the sleeve body and connected with the diameter-reducing blocks, a driving arm arranged on the support plate and connected with the diameter-reducing blocks, and a driving column arranged on the support plate and connected with the driving arm. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a structure schematic view of the diameter-reducing mechanism and the opening bushing of the utility model;

[0019] Figure 3 It is a structure schematic view of the diameter-reducing block of the utility model;

[0020] Figure 4 It is a structure schematic view of the limiting seat and the positioning bolt of the utility model;

[0021] Figure 5 It is a structure schematic view of the prior art;

[0022] Fig. 1 is a base, 11 is a limiting column, 12 is a support plate, 13 is a limiting seat, 131 is a waist-shaped hole, 1311 is a counterbore, 14 is a positioning bolt, 2 is a diameter reducing mechanism, 21 is a diameter reducing block, 211 is a diameter reducing groove, 2111 is a center groove, 2112 is an expanding groove, 212 is a driving column, 213 is a return spring, 214 is a bearing, 22 is a driving piece, 221 is a driving cylinder, 222 is a driving plate, 223 is a driving arm, 2231 is an inclined surface, 3 is a slide rail, 4 is a positioning seat, 5 is a diameter reducing sleeve, 6 is a positioning column, 7 is a swing arm, 71 is an arm body, 72 is a mounting hole, 8 is an open bushing. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will be a clear and complete description of the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0025] Embodiment 1

[0026] The following refers to Figures 1-4 As shown in the drawings, further illustrated in conjunction with specific embodiments, the present embodiment provides an open bushing press-fitting positioning device, which comprises a base 1, the base 1 is provided with a limiting column 11 for limiting the position of a mounting hole 72 of a swing arm 7, a top of the base 1 is provided with a support plate 12, the support plate 12 is provided with two limiting seats 13 for limiting the position of an arm body 71 of the swing arm 7, and a diameter reducing mechanism 2 is arranged on the support plate 12 and located at an upper portion of the limiting column 11. By sleeving the mounting hole 72 of the swing arm 7 onto the limiting column 11 and clamping the arm body 71 of the swing arm 7 between the two limiting seats 13, the position of the swing arm 7 can be fixed, the diameter reducing mechanism 2 is compressed on both sides of the open bushing 8 to reduce the diameter of the open bushing 8, and then the open bushing 8 is pressed from top to bottom by a pressure head of a press-fitting equipment, so that the open bushing 8 can be pressed into the mounting hole 72 of the swing arm 7.

[0027] The diameter reducing mechanism 2 comprises diameter reducing blocks 21 symmetrically arranged on both sides of the support plate 12, and the two diameter reducing blocks 21 are provided with diameter reducing grooves 211 on the side facing each other for compressing the open bush 8. The support plate 12 is further provided with a driving member 22 for driving the two diameter reducing blocks 21 to move towards each other. The support plate 12 is provided with a sliding rail 3, and the bottom of the diameter reducing block 21 is provided with a sliding groove and is slidingly connected to the sliding rail 3 to ensure the moving track of the diameter reducing block 21.

[0028] The driving member 22 comprises a driving cylinder 221 fixedly arranged on the side of the support plate 12 away from the limiting column 11, and the piston rod of the driving cylinder 221 is provided with a driving plate 222. The two sides of the driving plate 222 are provided with driving arms 223, and the top of the diameter reducing block 21 is provided with a driving column 212. The side of the two driving arms 223 facing each other is provided with an inclined surface 2231. When the driving plate 222 moves towards the limiting column 11, the driving arms 223 can abut against the driving column 212 and drive the two diameter reducing blocks 21 to move towards each other, so that the diameter reducing grooves 211 on both sides simultaneously compress the open bush 8 to reduce the diameter of the open bush 8 to be inserted into the mounting hole 72 of the swing arm 7.

[0029] The diameter reducing groove 211 comprises a center groove 2111 and flared grooves 2112 on both sides of the center groove 2111. In this embodiment, the flared grooves 2112 are inclined grooves, and in other embodiments, the flared grooves 2112 can also be arc-shaped grooves. When the diameter reducing block 21 moves towards each other and abuts against the open bush 8, the flared grooves 2112 will first contact the open bush 8 and apply a pressing force to the open bush 8 to compress the open bush 8, and finally the open bush 8 abuts against the center groove 2111. At this time, the diameter of the open bush 8 is compressed to the minimum and can be pressed into the mounting hole 72 of the swing arm 7 under the pressing action of the external pressing equipment. It should be noted that when different sizes of open bush 8 need to be pressed, the diameter reducing block 21 with different sizes of diameter reducing grooves 211 can be replaced.

[0030] The two diameter reducing blocks 21 are connected by a return spring 213. In this embodiment, the return spring 213 is selected as a compression spring, which is in a stretched state and has a large gap between the two diameter reducing blocks 21 under the action of no external force. When the driving plate 222 drives the driving arms 223 to move, it can drive the two diameter reducing blocks 21 to move towards each other to compress the open bush 8, thereby facilitating the pressing process. After the pressing process is completed, when the driving plate 222 moves away from the limiting column 11, the return spring 213 can drive the two diameter reducing blocks 21 to move away from each other to return to the initial position, thereby facilitating the removal of the product after pressing and facilitating the subsequent pressing and positioning of the next product.

[0031] In order to reduce the friction between the driving arm 223 and the driving column 212, the outer part of the driving column 212 is provided with a bearing 214, the inner ring of the bearing 214 is in interference fit with the driving column 212, and the outer ring of the bearing 214 can abut against the driving arm 223, the driving arm 223 directly contacts the bearing 214 and can drive the bearing 214 to rotate, so as to reduce the friction received by the driving arm 223 during the driving process, thereby making the driving process of the diameter-reducing block 21 more smooth.

[0032] The limiting seat 13 is provided with a positioning bolt 14, and the support plate 12 is provided with a threaded hole for inserting the positioning bolt 14. The limiting seat 13 is provided with a waist-shaped hole 131 penetrating in the vertical direction, and the top of the waist-shaped hole 131 is provided with a countersunk head 1311. The positioning bolt 14 is inserted into the waist-shaped hole 131, and the head of the positioning bolt 14 abuts against the countersunk head 1311. By providing the waist-shaped hole 131 and the countersunk head 1311 on the limiting seat 13, when it is necessary to change the position of the limiting seat 13, the positioning bolt 14 is loosened to enable the limiting seat 13 to move, and then the limiting seat 13 is slid along the length direction of the waist-shaped hole 131 to a specified position, and then the positioning bolt 14 is tightened, so that the position of the limiting seat 13 on the support plate 12 can be changed, thereby adapting to the width of different models of the swing arm 7. By replacing the limiting column 11 with different diameters, the diameter of the mounting hole 72 of different models of the swing arm 7 can be adapted, so that different models of the swing arm 7 can be conveniently positioned.

[0033] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A press-fitting and positioning device for an open bushing, characterized in that, Includes a base (1), on which a limiting post (11) is provided for limiting the position of the mounting hole (72) of the swing arm (7), and a support plate (12) is provided on the top of the base (1), and a diameter reduction mechanism (2) is provided on the support plate (12) and above the limiting post (11). The reducing mechanism (2) includes reducing blocks (21) symmetrically arranged on both sides of the support plate (12). Each of the two reducing blocks (21) has a reducing groove (211) for compressing the opening bushing (8) on its opposite side. The support plate (12) is also provided with a driving member (22) for driving the two reducing blocks (21) to move simultaneously toward each other.

2. The open bushing press-fitting and positioning device according to claim 1, characterized in that, The driving component (22) includes a driving cylinder (221), which is fixedly disposed on the side of the support plate (12) away from the limiting post (11). A driving plate (222) is disposed on the piston rod of the driving cylinder (221). Driving arms (223) are disposed on both sides of the driving plate (222). A driving post (212) is disposed on the top of the reducing block (21). An inclined surface (2231) is disposed on the side of the two driving arms (223) that are close to each other. When the driving plate (222) moves toward the limiting post (11), the driving arm (223) can abut against the driving post (212) and drive the two reducing blocks (21) to move toward each other.

3. The open bushing press-fitting and positioning device according to claim 2, characterized in that, A return spring (213) is connected between the two reduced diameter blocks (21). When the drive plate (222) moves away from the limiting post (11), the return spring (213) can drive the two reduced diameter blocks (21) to move away from each other.

4. The open bushing press-fitting and positioning device according to claim 1, characterized in that, The reduced diameter groove (211) includes a central groove (2111) and flared grooves (2112) located on both sides of the central groove (2111).

5. The open bushing press-fitting and positioning device according to claim 4, characterized in that, The flared groove (2112) is an inclined groove or an arc-shaped groove.

6. The open bushing press-fitting and positioning device according to claim 1, characterized in that, The support plate (12) is provided with a slide rail (3), and the bottom of the reduced diameter block (21) is provided with a slide groove and is slidably connected to the slide rail (3).

7. The open bushing press-fitting and positioning device according to claim 2, characterized in that, The drive column (212) is provided with a bearing (214) on its outside. The inner ring of the bearing (214) is interference-fitted with the drive column (212), and the outer ring of the bearing (214) can abut against the drive arm (223).

8. The open bushing press-fitting and positioning device according to claim 1, characterized in that, The support plate (12) is provided with two limiting seats (13) for limiting the position of the arm body (71) of the swing arm (7). The limiting seats (13) are provided with positioning bolts (14). The support plate (12) is provided with threaded holes for the positioning bolts (14) to be inserted.

9. The open bushing press-fitting and positioning device according to claim 8, characterized in that, The limiting seat (13) has a waist-shaped hole (131) extending vertically through it. The top of the waist-shaped hole (131) is provided with a countersunk head (1311). The positioning bolt (14) passes through the waist-shaped hole (131) and the head of the positioning bolt (14) abuts against the countersunk head (1311).

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