Shock absorber spring press fitting tool

Abstract

The utility model discloses a shock absorber spring press fitting tool, and relates to the technical field of automobile sliding column assembly assembling. The first end of the spring clamping jaw is connected to different height positions on the bearing frame, the second end of the spring clamping jaw is a clamping jaw capable of adjusting the opening and closing angle and the extending length, and the clamping jaw is connected to a spring wire at the upper end of a spring in a clamped mode; the shock absorber supporting seat is connected to the bearing frame in a sliding and sleeving manner and is supported at the lower end of the spring; and the driving piece is connected with the shock absorber supporting seat and drives the shock absorber supporting seat to move up and down. By adjusting the opening and closing angle and the extending length of the spring clamping jaw, the press fitting device can adapt to springs of different shapes, and due to the fact that the spring clamping jaw is connected to the positions of different heights on the bearing frame, the press fitting device can be suitable for press fitting of sliding column assemblies of different heights, and therefore the press fitting device is suitable for assembling of most sliding column assemblies.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile shock absorber assembly, in particular to a shock absorber spring pressing tooling. Background Art

[0002] When assembling an automobile shock absorber assembly, it is necessary to assemble parts such as an upper mount, an axial thrust bearing, a bumper, a shock absorber assembly, and a spring cushion while compressing a coil spring. During the trial production stage of the whole vehicle development process, it is often necessary to design a special tooling according to different shock absorbers, resulting in additional costs. The pressing of springs with irregular shapes, such as eccentric springs, is more labor-intensive and material-consuming.

[0003] Chinese patent document with the publication number of CN214186022U discloses a shock absorber spring pressing device, which includes a bearing base frame, an operation panel, a driving cylinder, a shock absorber positioning and guiding device, a shock absorber quick clamping device, and a spring pre-tightening device; the front shock absorber assembly is installed on the shock absorber quick clamping device through the shock absorber positioning and guiding device, the front upper mount is installed on the spring pre-tightening device, the shock absorber is clamped by the shock absorber quick clamping device, the spring is installed between the shock absorber quick clamping device and the spring pre-tightening device, and the spring pre-tightening device applies a pre-tightening force to the spring and adjusts the spring angle. The utility model realizes spring pre-tightening through link motion, can ensure the installation angle of the shock absorber spring during shock absorber spring pressing, drives the cylinder through compressed air to realize shock absorber spring pressing, the force on the spring contact surface is uniform during pressing, the control is accurate, the operation is safe and convenient, and at the same time, it also has the advantages of easy control of pressing quality, flexible movement, small occupied space, and low manufacturing cost. However, this tooling can only compress springs with a fixed shape. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a shock absorber spring pressing tooling, which is a flexible tooling and is suitable for the assembly of most shock absorber assemblies, solving the problem that the existing shock absorber spring pressing tooling can only compress springs with a fixed shape and needs to design a special pressing tooling according to different spring types.

[0005] The utility model provides the following solution:

[0006] The utility model discloses a shock absorber spring pressing tooling, including

[0007] A bearing frame;

[0008] Spring claws, the first end of the spring claws is connected to different height positions on the bearing frame, the second end of the spring claws is a claw that can adjust the opening and closing angle and the extending length, and the claw is clamped on the spring wire at the upper end of the spring;

[0009] A shock absorber support seat, which is slidably sleeved on the carrier and supports the lower end of the spring;

[0010] A driving member, which is connected to the shock absorber support seat and drives the shock absorber support seat to move up and down.

[0011] Preferably, the claw includes a first connecting arm, a second connecting arm and a hook;

[0012] The first connecting arm is arranged in a bent shape and includes a first folded edge and a second folded edge. At least two first ends of the second connecting arms are respectively connected to the first folded edge and the second folded edge and slide along the length directions of the first folded edge and the second folded edge;

[0013] The hook is connected to the second end of the second connecting arm and slides along the length direction of the second connecting arm. The hook is clamped on the spring wire at the upper end of the spring.

[0014] Preferably, at least two first ends of the second connecting arms are respectively connected to the first folded edge and the second folded edge of the first connecting arm through a rotating shaft and a rotating shaft sleeve;

[0015] The rotating shaft sleeves are respectively connected to the first folded edge and the second folded edge and slide along the length directions of the first folded edge and the second folded edge;

[0016] The rotating shaft is rotatably connected in the rotating shaft sleeve, and the first end of the second connecting arm is connected to the rotating shaft.

[0017] Preferably, the first folded edge and the second folded edge are both provided with first annular grooves along their own length directions. The rotating shaft sleeves respectively slide through the first annular grooves and then are connected to the first folded edge and the second folded edge.

[0018] Preferably, the second connecting arm is provided with a second annular groove along its own length direction. The hook slides through the second annular groove and then is connected to the second connecting arm.

[0019] Preferably, the carrier is provided with first connecting holes with different heights, and the first end of the spring claw is provided with second connecting holes which are in fit connection with the first connecting holes.

[0020] Preferably, the first connecting holes and the second connecting holes are connected by bolts.

[0021] Preferably, the shock absorber support seat includes a sleeve and a support seat which are connected to each other. The sleeve is slidably sleeved on the carrier, and the support seat supports the lower end of the spring.

[0022] Preferably, it further includes a footrest which is fixed to the lower end of the carrier.

[0023] The utility model has the following advantages compared with the prior art:

[0024] 1. The shock absorber spring pressing tooling provided by the utility model can adapt to springs of different shapes by adjusting the opening angle and extending length of the spring claws. Since the spring claws are connected to different height positions on the bearing frame, it can be applied to the pressing of strut assemblies of different heights. Therefore, it is applicable to the assembly of most strut assemblies.

[0025] 2. The shock absorber spring pressing tooling provided by the utility model can be applied to springs with irregular shapes because the spring claws 2 directly act on the spring wires at the upper end of the spring. For example, an eccentric helical spring in which the lateral force axis forms a certain angle with the spring axis. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 is a schematic structural diagram of the shock absorber spring pressing tooling according to an embodiment of the utility model;

[0028] Figure 2 is a schematic structural diagram of the bearing frame of the shock absorber spring pressing tooling according to an embodiment of the utility model;

[0029] Figure 3 is a schematic structural diagram of the spring claws of the shock absorber spring pressing tooling according to an embodiment of the utility model;

[0030] Figure 4 is another schematic structural diagram of the spring claws of the shock absorber spring pressing tooling according to an embodiment of the utility model;

[0031] Figure 5 is a schematic structural diagram of the shock absorber support seat of the shock absorber spring pressing tooling according to an embodiment of the utility model;

[0032] Figure 6 is a schematic working diagram of the shock absorber spring pressing tooling according to an embodiment of the utility model.

[0033] Wherein: 1 - bearing frame; 11 - base; 12 - bracket; 13 - first connection hole;

[0034] 2 - Spring Claw; 21 - First Connecting Arm; 211 - First Hem; 212 - Second Hem; 213 - First Ring Groove; 22 - Second Connecting Arm; 221 - Second Ring Groove; 23 - Hook Claw; 24 - Rotating Shaft; 25 - Rotating Shaft Sleeve; 26 - Second Connecting Hole;

[0035] 3 - Shock Absorber Support Bracket; 31 - Sleeve; 32 - Support Bracket;

[0036] 4 - Driving Part; 401 - Upper Mount; 402 - Axial Thrust Bearing; 403 - Spring; 404 - Spring Tray; 405 - Shock Absorber;

[0037] 5 - Pedal. Detailed Implementation Manner

[0038] In order to make the objectives, technical solutions and advantages of this application clearer, the following will further describe this application in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0039] The terms used in the embodiments of this application are only for the purpose of describing specific embodiments, and are not intended to limit this application. The singular forms "a", "the" and "said" used in the embodiments of this application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two.

[0040] It should be understood that the term " / and / " used herein is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this text generally represents an "or" relationship between the associated objects before and after.

[0041] It should be understood that although terms such as first, second, and third may be used in the embodiments of this application for description, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of this application, the first can also be called the second, and similarly, the second can also be called the first.

[0042] Depending on the context, as used herein, the words "if" and "when" can be interpreted as "when", "while", "in response to determining", or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detecting (stated condition or event)" can be interpreted as "when determined", "in response to determining", "when detecting (stated condition or event)", or "in response to detecting (stated condition or event)".

[0043] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a commodity or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such commodity or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the commodity or device comprising said element.

[0044] In particular, it should be noted that symbols and / or numbers present in the specification that are not marked in the accompanying drawings are not reference numerals.

[0045] See Figures 1-6 , a shock absorber spring pressing tooling provided by an embodiment of the present application includes: a carrier 1; a spring claw 2, a first end of the spring claw 2 is connected to different height positions on the carrier 1, a second end of the spring claw 2 is a claw capable of adjusting the opening and closing angle and the extending length, and the claw is clamped on the spring wire at the upper end of the spring 403; a shock absorber support seat 3, the shock absorber support seat 3 is slidably sleeved on the carrier 1 and supports at the lower end of the spring 403; a driving member 4, the driving member 4 is connected to the shock absorber support seat 3 and drives the shock absorber support seat 3 to move up and down.

[0046] In this embodiment, the carrier 1 is the main body of the pressing tooling, serving as the installation foundation and bearing part for other components of the entire tooling, having a suitable external dimension and sufficient structural strength, including a base 11 and a bracket 12, and the bracket 12 is fixed above the base 11. The spring claw 2 fixes the upper end of the spring 403 at a specific height position of the bracket 12, the shock absorber support seat 3 supports on the spring tray 404 at the lower end of the spring 403, and transmits the force applied by the driving member 4 to the shock absorber tray 404, thereby achieving the purpose of compressing the spring. The driving member 4 is a telescopic cylinder, the first end is connected to the shock absorber support seat 3, the second end is fixed on the base 11, high-pressure gas is introduced into the cylinder to make the piston move upward, and is transmitted to the shock absorber support seat 3 by the piston rod, pushing the shock absorber support seat 3 upward, thereby compressing the helical spring. After the spring is compressed, it is more convenient to install parts such as the upper suspension, axial thrust bearing, and buffer block of the strut assembly.

[0047] Since the spring claw 2 directly acts on the spring wire at the upper end of the spring, different-shaped springs, especially springs with irregular shapes, such as eccentric helical springs with a certain angle formed between the lateral force axis and the spring axis, can be adapted by adjusting the opening and closing angle and the protruding length of the claw. Such eccentric springs require more complex tooling in the assembly of the shock absorber assembly. At the same time, since the spring claw 2 is connected to different height positions on the carrier 1, it can be applied to the press-fitting of shock absorber assemblies with different heights. Therefore, the shock absorber spring press-fitting tooling described in this embodiment is applicable to the assembly of most shock absorber assemblies.

[0048] This embodiment solves the problem that the existing shock absorber spring press-fitting tooling can only compress springs with fixed shapes and requires the design of special press-fitting tooling according to different spring types. It has a simple structure, low manufacturing cost, and a small volume, and can be used flexibly. It is applicable to the press-fitting of small batches of shock absorber assembly samples in the prototype trial production stage of vehicle development.

[0049] Further, the claw includes a first connecting arm 21, a second connecting arm 22, and a hook 23; the first connecting arm 21 is arranged in a bent shape and includes a first folded edge 211 and a second folded edge 212. The first ends of the two second connecting arms 22 are respectively connected to the first folded edge 211 and the second folded edge 212 and slide along the lengths of the first folded edge 211 and the second folded edge 212 respectively; the hook 23 is connected to the second end of the second connecting arm 22 and slides along the length of the second connecting arm 22, and the hook 23 is clamped on the spring wire at the upper end of the spring 403.

[0050] The two second connecting arms 22 are connected to the two folded edges of the first connecting arm 21 and enclose a sleeve-shaped structure. The two hooks 23 connected to the second connecting arms 22 are clamped on the symmetric sides of the spring wire at the upper end of the spring 403, making the fixation of the spring more stable. By sliding the two second connecting arms 22 along the lengths of the first folded edge 211 and the second folded edge 212, the protruding lengths of the two second connecting arms 22 can be adjusted, and thus the protruding length of the hook 23 is adjusted. Similarly, by sliding the hook 23 along the length of the second connecting arm 22, the protruding length of the hook 23 is further adjusted.

[0051] Furthermore, the first ends of the two second connecting arms 22 are respectively connected to the first folded edge 211 and the second folded edge 212 through a rotating shaft 24 and a rotating shaft sleeve 25; the two rotating shaft sleeves 25 are respectively connected to the first folded edge 211 and the second folded edge 212 and slide along the lengths of the first folded edge 211 and the second folded edge 212 respectively; the rotating shaft 24 is rotatably connected in the rotating shaft sleeve 25, and the first end of the second connecting arm 22 is connected to the rotating shaft 24. By rotating the two second connecting arms 22, the opening and closing angle of the spring claw 2 is adjusted.

[0052] Further, the first hem 211 and the second hem 212 are both provided with a first annular groove 213 along their own length directions. The two rotating shaft sleeves 25 respectively slide through the first annular grooves 213 and then are connected to the first hem 211 and the second hem 212.

[0053] By providing the first annular groove 213, the two rotating shaft sleeves 25 are enabled to slide along the length directions of the first hem 211 and the second hem 212. After determining that the rotating shaft sleeves 25 slide to appropriate positions in the first annular grooves according to the shape of the spring 403, the rotating shaft sleeves 25 are connected to the first hem 211 and the second hem 212 through bolts, thereby fixing the rotating shaft sleeves 25 at corresponding positions, that is, fixing the claw 23 at corresponding positions.

[0054] Similarly, the second connecting arm 22 is provided with a second annular groove 221 along its own length direction. The claw 23 slides through the second annular groove 221 and then is connected to the second connecting arm 22. The claw 23 is enabled to slide along the length direction of the second connecting arm.

[0055] Further, the bracket 12 is provided with first connecting holes 13 with different heights. The first end of the spring claw 2 is provided with second connecting holes 26 that are cooperatively connected with the first connecting holes 13. Specifically, the first end of the spring claw 2 is a square sleeve that can move up and down along the bracket 12. The second connecting holes 26 penetrating through the square sleeve are provided at corresponding positions of the first connecting holes 13. By connecting the second connecting holes 26 with the first connecting holes 13 at different heights, the height adjustment of the spring claw 2 is realized.

[0056] Furthermore, the first connecting holes 13 and the second connecting holes 26 are connected through bolts.

[0057] Optionally, the shock absorber support seat 3 includes a sleeve 31 and a support seat 32 that are connected to each other. The sleeve 31 is slidably sleeved on the bracket 12, and the support seat 32 supports on the spring tray 404 at the lower end of the spring 403. The sleeve 31 being slidably sleeved on the bracket 12 ensures the up-and-down movement of the shock absorber support seat 3, thereby compressing the spring. The shape of the support seat 32 is set according to the shape of the spring tray 404. In this embodiment, the support seat is set as a horseshoe shape.

[0058] Optionally, the shock absorber spring pressing tooling of this embodiment further includes a foot pedal 5 that is fixed on the base 11. The foot pedal 5 is welded to the base 11. When in use, the worker steps on the foot pedal 5 to keep the tooling stable.

[0059] The working process of the shock absorber spring pressing tooling of this embodiment is as follows:

[0060] Place the spring tray 404 of the shock absorber 405 on the shock absorber support seat 3. After placing the spring 403 in the corresponding position of the shock absorber 405, adjust the rotation angle and extension length of the second connecting arm 22 according to the height and shape of the spring 403. When necessary, adjust the extension length of the claw 23. Use the claw 23 to grasp the two side wires of the spring 403. Fix the second connecting arm and the first connecting arm with bolts. Then fix the square sleeve at the first end of the spring claw 2 to the bracket 12 with bolts. Inject high-pressure gas into the telescopic cylinder 4 to push the spring support seat 3 upward, thereby compressing the shock absorber spring 403. After the spring 403 is compressed to a certain position, install parts such as the upper mount 401 and the axial thrust bearing 402 of the strut assembly. After tightening the strut fastening bolts, release the pressure of the cylinder, and the shock absorber support 3 releases the spring 403 to complete the installation of the strut assembly. When necessary, step on the footrest 5 to assist in stabilizing the fixture.

[0061] Finally, it should be noted that the embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. For the system or device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0062] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A shock absorber spring press-fitting tool, characterized in that: include: A carrier frame (1); A spring claw (2), wherein the first end of the spring claw (2) is connected to different height positions on the support frame (1), the second end of the spring claw (2) is a claw capable of adjusting the opening and closing angle and the extension length, and the claw is clamped on the spring wire at the upper end of the spring (403); A shock absorber support seat (3), the shock absorber support seat (3) is slidably sleeved on the support frame (1) and supported on the lower end of the spring (403); A driving member (4), wherein the driving member (4) is connected to the shock absorber support seat (3) and drives the shock absorber support seat (3) to move up and down.

2. The shock absorber spring press-fitting tool according to claim 1, characterized in that: The claw comprises a first connecting arm (21), a second connecting arm (22) and a hook claw (23); The first connecting arm (21) is arranged in a bent shape, comprising a first folded edge (211) and a second folded edge (212); the first ends of at least two of the second connecting arms (22) are respectively connected to the first folded edge (211) and the second folded edge (212), and slide along the length direction of the first folded edge (211) and the second folded edge (212); The hook (23) is connected to the second end of the second connecting arm (22) and slides along the length direction of the second connecting arm (22). The hook (23) is clamped on the spring wire at the upper end of the spring (403).

3. The shock absorber spring press-fitting tool according to claim 2, characterized in that: The first ends of at least two of the second connecting arms (22) are connected to the first folded edge (211) and the second folded edge (212) of the first connecting arm (21) via a rotating shaft (24) and a rotating shaft sleeve (25); The rotating shaft sleeve (25) is respectively connected to the first folded edge (211) and the second folded edge (212), and slides along the length direction of the first folded edge (211) and the second folded edge (212); The rotating shaft (24) is rotatably connected in the rotating shaft sleeve (25), and the first end of the second connecting arm (22) is connected to the rotating shaft (24).

4. The shock absorber spring press-fitting tool according to claim 3, characterized in that: The first folded edge (211) and the second folded edge (212) are both provided with a first annular groove (213) along their length direction, and the rotating shaft sleeve (25) is connected to the first folded edge (211) and the second folded edge (212) after sliding through the first annular groove (213) respectively.

5. The shock absorber spring press-fitting tool according to claim 4, characterized in that: The second connecting arm (22) is provided with a second annular groove (221) along its length direction, and the hook claw (23) is connected to the second connecting arm (22) after sliding through the second annular groove (221).

6. The shock absorber spring press-fitting tool according to claim 1, characterized in that: The carrier frame (1) is provided with a first connection hole (13) of different heights, and the first end of the spring claw (2) is provided with a second connection hole (26) that cooperates with the first connection hole (13).

7. The shock absorber spring press-fitting tool according to claim 6, characterized in that: The first connecting hole (13) and the second connecting hole (26) are connected by bolts.

8. The shock absorber spring press-fitting tool according to claim 1, characterized in that: The shock absorber support seat (3) comprises a sleeve (31) and a support seat (32) which are connected to each other, the sleeve (31) is slidably sleeved on the bearing frame (1), and the support seat (32) is supported on the lower end of the spring (403).

9. The shock absorber spring press-fitting tool according to claim 1, characterized in that: It also includes a footrest (5), and the footrest (5) is fixed to the lower end of the supporting frame (1).

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