Tool for testing welding strength of spring plate

Abstract

The utility model provides a spring plate welding strength test tool which comprises a fixing cylinder, a shock absorber is inserted in the fixing cylinder, the fixing cylinder is provided with a supporting module used for supporting a spring plate welded on the shock absorber, and the supporting module comprises at least three supporting pins vertically arranged at the side end of the fixing cylinder in a sliding mode and a connecting sliding groove. The upper end and the outer side end of the connecting sliding groove are both communicated with the outside. The tool for testing the welding strength of the spring plate not only can be matched with an electronic universal testing machine to meet the basic requirement for detecting the welding strength of the spring plate on a shock absorber, but also can be used for supporting and fixing the spring plates of various specifications, so that the application range of the tool is widened, the cost investment of a user is reduced, and the working efficiency is improved. And the overall working efficiency of testing the spring plates of various models is remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of shock absorber technology, and specifically relates to a spring disc welding strength testing fixture. Background Technology

[0002] The spring disc is an important component that supports the coil spring of the shock absorber. During the driving process, the coil spring is constantly compressed and restored. The impact force of the vehicle body bumping up and down is applied to the spring disc through the coil spring. Therefore, the welding strength of the spring disc on the shock absorber is crucial to driving safety.

[0003] Due to the complex shape and structure of spring discs, the current common method for testing their weld strength involves creating a conformal fixture to support the disc and then using a tensile / compression testing machine for loading tests. However, since different types of shock absorbers may be matched with different spring discs, a specific conformal fixture is only suitable for testing a single spring disc. This requires the development of a specific conformal fixture for each spring disc, which not only increases the difficulty of laboratory fixture management but also hinders cost reduction and efficiency improvement for the company. Therefore, the existing spring disc weld strength testing fixtures cannot fully meet the needs of users. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the prior art by providing a spring disc welding strength testing fixture. It can not only be used with an electronic universal testing machine to meet the basic requirements for testing the welding strength of spring discs on shock absorbers, but also support and fix spring discs of various specifications, thereby enhancing the applicability of the fixture, reducing user costs, and significantly improving the overall work efficiency for testing various types of spring discs.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a spring disc welding strength test fixture, including a fixed cylinder, a shock absorber inserted into the fixed cylinder, a support module for supporting the spring disc welded on the shock absorber on the fixed cylinder, the support module including at least three support pins vertically slidably disposed on the side end of the fixed cylinder, the support pins for supporting the bottom of the spring disc, a connecting groove opened on the fixed cylinder for sliding connection with the support pins, the upper end and the outer end of the connecting groove are connected to the outside, a mounting slot is vertically opened on the support pin, and a clamping bolt is provided on the support pin that passes through the mounting slot and is screwed to the side end of the fixed cylinder.

[0006] As a further improvement of this utility model, the upper side of the fixed cylinder is also screwed with a side screw that can abut against the outer wall of the support pin to reinforce the connection between the support pin and the fixed cylinder. The upper side of the fixed cylinder is provided with a relief groove for accommodating the side screw.

[0007] As a further improvement of this utility model, there are two side set screws corresponding to each support pin, with the two side set screws located on both sides of the support pin respectively.

[0008] As a further improvement of this utility model, multiple support pins are equally spaced on the side end of the fixed cylinder.

[0009] As a further improvement of this utility model, the number of support pins is four.

[0010] As a further improvement of this utility model, a support cylinder is also provided at the bottom of the fixed cylinder. The support cylinder and the fixed cylinder are engaged and matched. The top of the support cylinder is provided with a snap-fit ​​groove that is engaged and fixed with the lower end of the fixed cylinder. There is a buffer gap between the bottom of the support cylinder and the bottom of the shock absorber.

[0011] As a further improvement of this utility model, the vertical adjustment stroke of the support pin in the fixed cylinder is greater than 50 mm.

[0012] As a further improvement of this utility model, the corners of the connecting groove and the support pin are rounded.

[0013] As a further improvement of this utility model, the support pin includes a column that is slidably connected to the connecting groove and a pin body disposed on the column for supporting the spring disc. The pin body is a conical shape that tilts inward. This structure of the pin body allows the worker to achieve support for the bottom of the spring disc by making a small vertical displacement adjustment to the support pin.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] Firstly, after the shock absorber with the welded spring disc is inserted into the fixed cylinder and the support cylinder, the multiple support pins can be vertically adjusted so that the tops of the multiple support pins abut against the bottom of the corresponding parts of the spring disc, thereby stably supporting the spring disc and preventing the spring disc from shifting laterally. Then, a certain amount of downward pressure can be applied to the top of the shock absorber using an electronic universal testing machine, and the welding strength of the spring disc can be tested by observing whether the connection between the spring disc and the shock absorber is damaged.

[0016] Secondly, by first loosening the clamping bolt and separating it from the threaded fixing hole, the support pin can slide vertically up and down relative to the fixed cylinder. Then, the clamping bolt can be moved back to the position corresponding to the threaded fixing hole and screwed into it to fix the connection between the support pin and the fixed cylinder.

[0017] Thirdly, the connection between the support pin and the fixed cylinder can be reinforced by the side set screw, so that the support pin can more stably support and fix the spring plate. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the fixed cylinder, connecting slide, threaded fixing hole and clearance groove of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the support pin of this utility model;

[0022] Figure 4 This is a structural schematic diagram of the fixed cylinder and the support cylinder of this utility model;

[0023] Figure 5 This is a schematic diagram of the support cylinder and the snap-fit ​​groove of this utility model;

[0024] Figure 6 This is a cross-sectional structural diagram of the fixed cylinder and the support cylinder of this utility model.

[0025] In the diagram: 101, shock absorber; 102, spring disc; 103, end face; 201, fixing cylinder; 202, support pin; 203, connecting groove; 204, clamping bolt; 205, threaded fixing hole; 206, mounting slot; 207, side set screw; 208, clearance groove; 209, support cylinder; 210, snap-fit ​​groove; 2021, column; 2022, pin. Detailed Implementation

[0026] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0027] like Figure 1 , 2As shown, a spring disc welding strength testing fixture includes a fixed cylinder 201, a shock absorber 101 inserted into the fixed cylinder 201, and a support module provided on the fixed cylinder 201 for supporting the spring disc 102 welded to the shock absorber 101. The support module includes at least three support pins 202 vertically slidably disposed on the side end of the fixed cylinder 201, the support pins 202 for supporting the bottom of the spring disc 102, and a connecting groove 203 slidably connected to the support pins 202 on the fixed cylinder 201. The upper end and outer end of the connecting groove 203 are connected to the outside. The support pin 202 has a vertically opened mounting slot 206. The support pin 202 is provided with a clamping bolt 204 that passes through the mounting slot 206 and is screwed to the side end of the fixed cylinder 201. The side end of the fixed cylinder 201 is provided with a threaded fixing hole 205 that is threaded to the clamping bolt 204. The vertical adjustment stroke of the support pin 202 in the fixed cylinder 201 is greater than 50 mm. The corners of the connecting groove 203 and the support pin 202 are rounded.

[0028] like Figure 1 , 2 As shown, there are four support pins 202, which are evenly spaced on the side of the fixed cylinder 201. These four equally spaced support pins provide stable support for the spring disc 102.

[0029] like Figure 3 As shown, the support pin 202 includes a column 2021 slidably connected to the connecting groove 203 and a pin 2022 disposed on the column 2021 for supporting the spring disc 102. The pin 2022 is a conical shape inclined inward. This structure of the pin 2022 allows the worker to support the bottom of the spring disc 102 with a small vertical displacement adjustment of the support pin 202. The mounting slot 206 is formed in the column 2021, and the clamping bolt 204 is clamped to the column 2021.

[0030] Place the test fixture on the platform of the electronic universal testing machine. After inserting the shock absorber 101 with the welded spring disc 102 into the fixed cylinder 201, first loosen the clamping bolt 204 to separate it from the threaded fixing hole 205, thus releasing the fixation at the connection between the support pin 202 and the fixed cylinder 201. Then, slide the support pin 202 vertically upward relative to the fixed cylinder 201 until the top of the support pin 202 abuts against the corresponding part at the bottom of the spring disc 102, keeping the shock absorber 101 vertical. Next, re-press the clamping bolt 204 through the mounting slot 206 and screw it into the fixing threaded hole until the clamping bolt 204 is re-pressed onto the outer end of the support pin 202, thereby re-fixing the connection between the support pin 202 and the fixed cylinder 201, thus stably supporting the spring disc 102 and the shock absorber 101. The model of the electronic universal testing machine is UTM5305.

[0031] Then, an electronic universal testing machine can be used to apply a certain amount of downward pressure to the end face 103 of the shock absorber 101, and the welding strength of the spring plate 102 can be judged by observing whether the connection between the spring plate 102 and the shock absorber 101 is damaged.

[0032] When it is necessary to replace the spring disc 102 of different specifications for testing, the testing requirements of different spring discs 102 can be met simply by adjusting the height of the four support pins 202. Therefore, the device has wide applicability.

[0033] According to another embodiment of the present invention, as shown in Figures 4, 5 and 6, a support cylinder 209 is also provided at the bottom of the fixed cylinder 201. The support cylinder 209 is engaged with the fixed cylinder 201. The top of the support cylinder 209 is provided with a snap-fit ​​groove 210 that is engaged and fixed with the lower end of the fixed cylinder 201. There is a buffer gap between the bottom of the support cylinder 209 and the bottom of the shock absorber 101.

[0034] For cases where the shock absorber 101 is too long at the lower end of the spring disc 102 and extends below the fixed cylinder 201, a support cylinder 209 can be added to the bottom of the fixed cylinder 201. This prevents the bottom of the shock absorber 101 from touching the placement table of the electronic universal testing machine, allowing the device to be placed directly on the placement table. By leaving a buffer gap between the bottom of the support cylinder 209 and the bottom of the shock absorber 101, the shock absorber 101 can be prevented from moving downwards and impacting the placement table of the electronic universal testing machine during the strength test of the spring disc 102, thus preventing damage to the placement table and the shock absorber 101.

[0035] According to another embodiment of the present invention, such as Figure 1 , 4As shown, the upper side of the fixed cylinder 201 is also screwed with a side screw 207 that can abut against the outer wall of the support pin 202 to reinforce the connection between the support pin 202 and the fixed cylinder 201. The upper side of the fixed cylinder 201 is provided with a relief groove 208 for accommodating the side screw 207.

[0036] After the support pin 202 and the fixed cylinder 201 are fixed together by the clamping bolt 204, the side screw 207 can pass through the side wall of the fixed cylinder 201 and abut against the outer side wall of the support pin 202, thereby reinforcing the connection between the support pin 202 and the fixed cylinder 201.

[0037] When it is necessary to adjust the vertical position of the support pin 202, simply loosen the side set screw 207 first to release the reinforcement at the connection between the support pin 202 and the fixed cylinder 201, and then release the fixing bolt 204 from the connection between the support pin 202 and the fixed cylinder 201.

[0038] According to another embodiment of the present invention, such as Figure 1 , 4 As shown, there are two side set screws 207 corresponding to each support pin 202, and the two side set screws 207 are located on both sides of the support pin 202. Reinforcing the connection between the support pin 202 and the fixed cylinder 201 from both sides of the support pin 202 can more stably reinforce the connection between the support pin 202 and the fixed cylinder 201.

[0039] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A spring plate welding strength test tooling, comprising a fixing cylinder (201), a shock absorber (101) is inserted into the fixing cylinder (201), a supporting module for supporting a spring plate (102) welded on the shock absorber (101) is arranged on the fixing cylinder (201), characterized in that: The support module comprises at least three support pins (202) vertically slidingly arranged at the side end of a fixing cylinder (201), the support pins (202) being used for supporting the bottom of the spring disc (102), the fixing cylinder (201) being provided with a connecting sliding groove (203) slidingly connected with the support pins (202), the upper end and the outer side end of the connecting sliding groove (203) being connected with the outside, the support pin (202) being vertically provided with a mounting slot hole (206), and the support pin (202) being provided with a pressing fixing bolt (204) penetrating through the mounting slot hole (206) and being screw-connected with the side end of the fixing cylinder (201).

2. The spring disc weld strength test fixture of claim 1, wherein: The upper end side of the fixing cylinder (201) is further screw-connected with a side surface jacking screw (207) capable of abutting against the outer side wall of the support pin (202) so as to reinforce the connection between the support pin (202) and the fixing cylinder (201), and the upper end side of the fixing cylinder (201) is provided with a give-way groove (208) for accommodating the side surface jacking screw (207).

3. The spring disc weld strength test fixture of claim 2, wherein: The number of the side surface jacking screws (207) corresponding to each of the support pins (202) is two, and the two side surface jacking screws (207) are respectively located at the two sides of the support pin (202).

4. The spring disc weld strength test fixture of claim 1, wherein: The plurality of support pins (202) are equally spaced arranged at the side end of the fixing cylinder (201).

5. The spring disc weld strength test fixture of claim 1, wherein: The number of the support pins (202) is four.

6. The spring disc weld strength test fixture of claim 1, wherein: The bottom of the fixing cylinder (201) is further provided with a support cylinder (209), the support cylinder (209) being clampedly connected with the fixing cylinder (201), the top of the support cylinder (209) being provided with a clamping groove (210) clampedly connected with the lower end of the fixing cylinder (201), and the bottom of the support cylinder (209) and the bottom of the shock absorber (101) having a buffer gap.

7. The spring disc weld strength test fixture of claim 1, wherein: The support pin (202) comprises a column body (2021) slidingly connected with the connecting sliding groove (203) and a pin body (2022) arranged on the column body (2021) and used for supporting the spring disc (102), and the pin body (2022) is a conical body inclined inwardly.

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