Back swing arm assembly bushing extrusion tool

Abstract

The utility model provides a rear swing arm assembly lining extrusion tool which comprises a tool support, an extrusion core which extends upwards and is matched with a lining is installed on the top of the tool support, and a positioning core which is higher than the top of the extrusion core is arranged in the axial middle of the extrusion core. A downward pressing limiting column is arranged at the position, located on one side of the extrusion core, of the upper end of the tool support. A downward pressing cover capable of moving up and down is arranged above the extrusion core; the height of the downward pressing limiting column is greater than the downward moving stroke of the downward pressing cover; and a cavity for accommodating the lining is formed in the lower pressing cover. When the extrusion tool is used for taking out the bushings, firstly, the sleeve is placed on the extrusion core, the positioning core penetrates through the mounting hole, then the pressing cover is covered on the sleeve, and the pressing cover is slowly pressed down by a press to enable the sleeve to move downwards, so that the bushings are separated from the sleeve. And the bushings of different specifications can be taken out by simply switching the lower pressing cover, the pressing core and the positioning core which are matched with the bushings.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing assembly technical field, specifically, relate to a rear swing arm assembly bushing press out frock. BACKGROUND

[0002] As Figure 1 As shown in figure, present a rear swing arm assembly work piece 1, the swing arm 2 of forward extension is provided with sleeve pipe 3 in front end, sleeve pipe 3 is equipped with the rubber bushing (hereinafter referred to as bushing) 4 of flange edge aluminum framework, the middle part of bushing 4 is provided with mounting hole 5, because bushing 4 and sleeve pipe 3 belong to interference fit connection mode, bushing 4 is through external power source (such as servo cylinder or hydraulic cylinder) and is pressed into sleeve pipe 3 with certain pressure force (≥10kN) to realize the process of assembly. Bushing 4 is pressed into process due to the influence of sleeve pipe-bushing inner and outer diameter matching size, sleeve pipe-bushing surface roughness, bushing stiffness and many other factors, and the unqualified product will be generated in the process of pressing in, in order to save the cost, the unqualified bushing is withdrawn and the new bushing is supplemented to repair.

[0003] But aiming at this kind of bushing in the sleeve pipe, there is no better supporting stress point after pressing, it is more difficult when the bushing is withdrawn, at present, manual destruction of bushing flange edge is often used to support the end face of bushing pipe and withdraw reversely, but the method is complex and inefficient, cannot adapt to batch withdrawal and has the risk of damaging products.

[0004] Therefore, the technical personnel in the art are committed to developing a rear swing arm assembly bushing press-out frock which is convenient and fast and can adapt to batch withdrawal. SUMMARY

[0005] The utility model discloses to solve the technical problems in prior art, and provide a kind of rear swing arm assembly bushing press-out frock which is convenient and fast and can adapt to batch withdrawal.

[0006] The utility model discloses to solve the technical problems in prior art, and provide a kind of rear swing arm assembly bushing press-out frock which is convenient and fast and can adapt to batch withdrawal.

[0007] A rear swing arm assembly bushing press-out frock, including frock support, the top of the frock support is installed with the press-out core that is matched with bushing and extends upwards, the axial middle part of the press-out core is provided with the positioning core higher than the top of the press-out core;The upper end of the frock support is located at one side of the press-out core and is provided with lower pressure limit post;The upper side of the press-out core is provided with the lower pressure cover that can move up and down, and the height of the lower pressure limit post is greater than the downstroke of the lower pressure cover;The lower pressure cover is provided with the cavity that can accommodate bushing.

[0008] When the bushing is taken out by using the pressing tool, first, the sleeve is placed on the pressing core, the positioning core is passed through the mounting hole, then the lower pressing cover is closed on the sleeve, the sleeve is moved downward by slowly pressing the lower pressing cover by the press, thus the bushing is taken out from the sleeve, the lower pressing limiting column mechanically limits the downward displacement of the press, thus preventing the press from over-pressing and causing personal injury or workpiece damage.

[0009] Further, the pressing core is detachably mounted on the tool support, thus different pressing cores can be used according to different specifications of the sleeve-bushing, and replacement is facilitated.

[0010] Further, the middle part of the tool support is provided with a positioning hole penetrating upward and downward, and the lower end of the pressing core is integrally provided with a positioning column inserted into the positioning hole, thus the positioning is firm and the pressing core is prevented from shaking.

[0011] Further, the tool support is provided with a penetrating positioning threaded hole, and a bolt with an end abutting against the lower end of the pressing core is threadedly connected to the positioning threaded hole, thus the pressing core is facilitated to be fixed.

[0012] Further, the lower pressing limiting column is composed of a limiting rod and a limiting seat inserted upward and downward, and the limiting seat is fixedly mounted on the tool support, thus different limiting heights can be used according to different specifications of the sleeve-bushing.

[0013] Further, the top of the limiting seat is provided with a downwardly recessed positioning slot, and the lower end of the limiting rod is provided with an insertion column inserted into the positioning slot, thus the structure is simple and the limiting rod is facilitated to be replaced.

[0014] Further, the inner side of the pressing core is provided with a transversely penetrating positioning core threaded hole, and a bolt with an end abutting against the lower end of the positioning core is threadedly connected to the positioning core threaded hole, thus the positioning is firm and the positioning core is prevented from shaking.

[0015] The utility model discloses the advantages are:

[0016] 1, the bushing of pressing into the sleeve exists unqualified product and needs to return to work and repair or the bushing needs to do push-out force test, can realize the quick exit of bushing;

[0017] 2, flexible tool: through simple switching and bushing cooperation lower pressing cover, pressing core and positioning core can realize the taking out of different specifications bushing;

[0018] 3, realize the undamaged taking out of bushing, solve the risk of workpiece damage in the process of taking out bushing. DRAWINGS

[0019] Figure 1 It is the structural schematic view of the rear swing arm assembly workpiece in the background art;

[0020] Figure 2 is a structural schematic view of the utility model;

[0021] Figure 3 is a structural exploded schematic view of the utility model;

[0022] Figure 4 is a structural bottom view schematic view of the utility model;

[0023] Figure 5 is Figure 4 is a sectional view at A-A. DETAILED DESCRIPTION

[0024] To enable persons skilled in the art to understand the features and effects of the present application, the following is a general description and definition of the terms and phrases mentioned in the specification and claims. Unless otherwise specified, all technical and scientific words used in the text have the usual meaning understood by those skilled in the art for the present application, and in case of conflict, the definition in the specification shall prevail.

[0025] Theories or mechanisms described and disclosed herein, whether correct or not, should not be used to limit the scope of the present application, i.e., the content of the present application can be implemented without being limited by any particular theory or mechanism.

[0026] In this text, "the present application" is "the utility model", "the present disclosure".

[0027] The use of "one", "a", "an" or similar expressions to describe the components and technical features described in the present application is merely for the convenience of expression and to provide a general meaning to the scope of the present application. Therefore, such description should be understood to include one or at least one, and the singular also includes the plural, unless it is clear that it means otherwise.

[0028] In this text, "or a combination thereof" means "or any combination thereof", "any", "any kind", "any" means "any", "any kind", "any".

[0029] It should be understood that the features disclosed in each embodiment herein can be combined arbitrarily to form the technical solutions of the present application, as long as the combination of these features does not exist contradictory.

[0030] The present application will be described below with specific embodiments and examples. It should be understood that these specific embodiments and examples are merely illustrative and are not intended to limit the scope and use of the present application.

[0031] Example 1

[0032] The rear swing arm assembly bushing pressing-out tool includes a tool support 6, the top of the tool support 6 is provided with an upwardly extending pressing-out core 7 matched with the bushing 4, the axial middle part of the pressing-out core 7 is provided with a positioning core 8 higher than the top of the pressing-out core 7; the upper end of the tool support 6 is provided with a downward pressing limiting column 9 on one side of the pressing-out core 7; the upper part of the pressing-out core 7 is provided with a downward pressing cover 10 movable up and down, the height of the downward pressing limiting column 9 is greater than the downward moving stroke of the downward pressing cover 10; the downward pressing cover 10 is provided with a cavity 14 accommodating the bushing 4. When the pressing-out tool is used to take out the bushing, first, the sleeve is placed on the pressing-out core, the positioning core passes through the mounting hole, then the downward pressing cover is closed on the sleeve, the sleeve is caused to move downward by the slow downward pressing of the downward pressing cover by the press, so that the bushing is separated from the sleeve, the downward pressing limiting column mechanically limits the downward displacement of the upper press, preventing the over-pressing of the press from causing personal injury or workpiece damage.

[0033] The pressing-out core 7 is detachably mounted on the tool support 6, further, the middle part of the tool support 6 is provided with a positioning hole 12 penetrating upward and downward, the lower end of the pressing-out core 7 is integrally provided with a positioning column 13 inserted into the positioning hole 12.

[0034] The tool support 6 is provided with a penetrating positioning threaded hole 11, the positioning threaded hole 11 is threadedly connected with a bolt with the end abutting against the lower end of the pressing-out core 7. One side of the pressing-out core 7 is provided with a transversely penetrating positioning core threaded hole 15, the positioning core threaded hole 15 is threadedly connected with a bolt with the end abutting against the lower end of the positioning core 8. The structure is simple, facilitating the dismounting and fixing of the pressing-out core 7 and the positioning core 8.

[0035] The downward pressing limiting column 9 is composed of an upper and lower inserted limiting rod 91 and a limiting seat 92, the limiting seat 92 is fixedly mounted on the tool support 6, further, the top of the limiting seat 92 is provided with a downwardly recessed positioning slot 93, the lower end of the limiting rod 91 is provided with an inserted column 94 inserted into the positioning slot 93.

[0036] The operation steps of the rear swing arm assembly bushing pressing-out tool are as follows:

[0037] S1. Preparing the tool: according to the specifications of the sleeve 3 and the bushing 4 in the rear swing arm assembly workpiece 1, selecting the appropriate pressing-out core 7, positioning core 8, downward pressing cover 10 and limiting rod 91;

[0038] S2. Mounting the positioning core 8 in the pressing-out core 7, inserting the lower end of the pressing-out core 7 into the positioning hole 12, and respectively fixing with the bolts, inserting the limiting rod 91 into the limiting seat 92;

[0039] S3. Placing the sleeve 3 on the pressing-out core 8;

[0040] S4. Axially align the lower cover 10 to the sleeve 3 and buckle it on the sleeve 3;

[0041] S4. Start the press to slowly lower the lower cover 10 to slowly press out the bushing 4;

[0042] S5. After the bushing 4 is pressed out, remove the lower cover 10 and take out the bushing.

[0043] As above, according to different bushing switching, it is realized by replacing the four components of the pressing-out core 7, the positioning core 8, the lower cover 10 and the limiting rod 91, which meets the demand of flexible production.

[0044] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and the changes made by the person skilled in the art without departing from the spirit of the present application fall within the protection scope of the present application.

Claims

1. A tooling for pressing out bushings of a rear control arm assembly, characterized in that: The tooling includes a tooling bracket (6), on the top of which is mounted an upwardly extending pressing core (7) that matches the bushing. A positioning core (8) higher than the top of the pressing core (7) is provided at the axial center of the pressing core (7). A downward pressing limit post (9) is provided at the upper end of the tooling bracket (6) on one side of the pressing core (7). A downward pressing cover (10) that can move up and down is provided above the pressing core (7). The height of the downward pressing limit post (9) is greater than the downward stroke of the downward pressing cover (10). A cavity (14) for accommodating the bushing is provided inside the downward pressing cover (10).

2. The rear swing arm assembly bushing press-out tooling according to claim 1, characterized in that: The extrusion core (7) is detachably mounted on the tooling bracket (6).

3. The rear swing arm assembly bushing press-out tooling according to claim 1, characterized in that: The tooling bracket (6) has a positioning hole (12) that runs vertically through the middle, and the lower end of the pressing core (7) is integrally provided with a positioning post (13) that is inserted into the positioning hole (12).

4. The rear swing arm assembly bushing press-out tooling according to claim 1, characterized in that: The tooling bracket (6) is provided with a through positioning threaded hole (11), and the positioning threaded hole (11) is threadedly connected to a bolt whose end abuts against the lower end of the pressing core (7).

5. The rear swing arm assembly bushing press-out tooling according to claim 1, characterized in that: The downward pressure limiting post (9) is composed of a limiting rod (91) and a limiting seat (92) that are inserted into each other. The limiting seat (92) is fixedly installed on the tooling bracket (6).

6. The rear swing arm assembly bushing press-out tooling according to claim 5, characterized in that: The top of the limiting seat (92) is provided with a downwardly recessed positioning slot (93), and the lower end of the limiting rod (91) is provided with a plug post (94) for inserting into the positioning slot (93).

7. The rear swing arm assembly bushing press-out tooling according to claim 1, characterized in that: The inner side of the pressing core (7) is provided with a transverse through-hole (15) for positioning core thread, and the positioning core thread hole (15) is threadedly connected to a bolt whose end abuts against the lower end of the positioning core (8).

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