Connecting bolt riveting jig for master cylinder

By designing a connecting bolt riveting tool for the brake master pump, the two down pressure rods of the down pressure device are used to press down simultaneously, solving the problems of high labor intensity, low efficiency and risk of work injury during manual riveting, and achieving a fast and stable riveting effect.

CN222779092UActive Publication Date: 2025-04-22XIAMEN YONGYU MECHANICAL IND CO LTD
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Patent Information

Application Number
CN202421294869.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-07
Publication Date
2025-04-22
Estimated Expiration
2034-06-07

AI Technical Summary

Technical Problem

In the prior art, the riveting process of the connecting bolt of the brake master pump relies on manual tapping, resulting in high labor intensity and low working efficiency, and increasing the possibility of work injury.

Method used

A connecting bolt riveting fixture for master pump is designed. By setting up a support seat and a down pressure device, two down pressure rods are used to press down simultaneously, and the connecting bolts are pressed onto the brake master pump at one time, achieving fast and stable riveting.

Benefits of technology

It improves the efficiency of riveting work, reduces labor intensity, and reduces the risk of work-related injuries.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a connecting bolt riveting jig for a master cylinder, which is used for riveting a connecting bolt on a brake master cylinder and comprises a supporting seat and a pressing device, and the supporting seat is used for placing the brake master cylinder and the connecting bolt and plays a role in supporting; the pressing device is arranged above the supporting seat; the downward pressing device comprises a downward pressing plate and two downward pressing rods arranged on the lower end face of the downward pressing plate side by side, the lower ends of the downward pressing rods are provided with first avoiding grooves used for avoiding the connecting bolts, the downward pressing rods move downwards to press the connecting bolts to the brake master cylinder, and the downward pressing device further comprises a driving mechanism or a driving device used for driving the downward pressing device to move in the vertical direction. The method adopts the prior art and does not need detailed details. The riveting jig is used for placing the to-be-riveted piece, then the two pressing rods of the pressing device press downwards at the same time, the two connecting bolts are pressed to the brake master cylinder at a time, rapid and stable riveting is achieved, work efficiency is improved, and meanwhile labor intensity is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of brake master cylinder production, in particular to a connecting bolt riveting fixture for the master cylinder. Background Art

[0002] After the brake master cylinder is produced, it is necessary to rivet the connecting bolts on both sides. Currently, most of the riveting methods are done manually. However, the manual riveting method may have the following problems:

[0003] First, manual riveting requires the use of tools to hammer, so the labor intensity is high;

[0004] Second, a single brake master cylinder needs to be riveted with two connecting bolts, and manual operation can only be done one by one, which is inefficient.

[0005] Third, the use of manual riveting increases the possibility of work-related injuries.

[0006] In view of this, the inventor specially designed a riveting fixture for the connecting bolts of the master cylinder, and this case was thus generated. Utility Model Content

[0007] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose a connecting bolt riveting jig for a master cylinder, which is used to place the parts to be riveted (brake master cylinder and connecting bolts), and then press down the two connecting bolts onto the brake master cylinder at one time through the two pressing rods of the pressing device, thereby overcoming the disadvantages of the current manual operation.

[0008] According to the utility model, a connecting bolt riveting jig for a master cylinder is provided, which is used to rivet the connecting bolt onto the brake master cylinder, and includes:

[0009] A support seat, the support seat is used to place the brake master cylinder and the connecting bolts and play a supporting role;

[0010] A pressing device, the pressing device is arranged above the supporting seat;

[0011] The pressing device includes a pressing plate and two pressing rods arranged side by side on the lower end surface of the pressing plate. The lower ends of the pressing rods are provided with first avoidance grooves for avoiding connecting bolts. The pressing rods move downward to press the connecting bolts onto the master brake cylinder.

[0012] The riveting fixture of the utility model is used to place the parts to be riveted (brake master cylinder and connecting bolts), and then the two pressing rods of the pressing device are pressed down at the same time to press the two connecting bolts onto the brake master cylinder at one time, thereby achieving fast and stable riveting, improving work efficiency and reducing labor intensity.

[0013] In some embodiments of the present invention, the first avoidance groove is arranged on the lower end surface of the lower pressing rod, and the inner side wall is connected to the outer side wall of the lower pressing rod.

[0014] In some embodiments of the utility model, two groups of guide devices are further included, the lower parts of the two groups of guide devices are arranged on the support seat, and the lower pressure plate is slidably connected to the upper parts of the guide devices.

[0015] In some embodiments of the utility model, the guide device includes a guide rod and a reset spring sleeved on the guide rod, the bottom of the guide rod is arranged on a support seat, the lower pressure plate is slidably connected to the guide rod, and the reset spring is arranged between the support seat and the lower pressure plate.

[0016] In some embodiments of the present invention, the guide device further comprises a shaft sleeve disposed on the lower pressure plate, wherein the shaft sleeve is sleeved on the guide rod and is slidably connected to the guide rod.

[0017] In some embodiments of the utility model, the support seat includes a support base plate, a plurality of support columns whose bottoms are arranged on the support base plate, and a support middle plate arranged above the plurality of support columns, and a second avoidance groove for avoiding the master brake cylinder is arranged on the support middle plate.

[0018] In some embodiments of the utility model, the upper end surface of the support seat is also provided with a base detachably connected thereto, and the connecting bolts are arranged above the base.

[0019] In some embodiments of the present invention, the base includes a connecting portion located at the bottom and used to be connected to the support seat, and a supporting portion arranged above the connecting portion and used to place connecting bolts.

[0020] In some embodiments of the utility model, the upper end surface of the support seat is provided with a groove for embedding the connecting part, and a magnet is embedded at the bottom of the groove or the bottom of the connecting part.

[0021] In some embodiments of the utility model, the upper end surface of the support portion is provided with a slot for embedding the head of the connecting bolt, and the depth of the slot is smaller than the height of the head of the connecting bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0023] in:

[0024] Figure 1 It is a structural schematic diagram of the riveting fixture in Example 1 of the utility model;

[0025] Figure 2 This is a front view of the riveting fixture in Example 1 of the utility model;

[0026] Figure 3 It is an exploded view of the riveting fixture in Example 1 of the utility model;

[0027] Figure 4 It is a structural schematic diagram of the riveting fixture in Example 2 of the utility model;

[0028] Figure 5 is a cross-sectional view of the riveting jig in Example 2 of the utility model;

[0029] Figure 6 This utility model Figure 5 A partial enlarged view of

[0030] Figure 7 This is a schematic diagram of the structure of the middle support plate in Embodiment 2 of the present utility model;

[0031] Figure 8 It is a structural schematic diagram of the base in Example 2 of the utility model.

[0032] Description of labels:

[0033] 01. Master brake cylinder; 02. Pressure-bearing part; 03. Connecting bolt; 10. Support seat; 11. Support bottom plate; 12. Support column; 13. Support middle plate; 131. Second avoidance groove; 132. Groove; 20. Pressing device; 21. Pressing plate; 22. Pressing rod; 221. First avoidance groove; 30. Guide device; 31. Guide rod; 32. Return spring; 33. Bushing; 40. Base; 41. Connecting part; 42. Support part; 421. Slot; 50. Magnet. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] Example 1

[0036] See also Figures 1 to 3, is a connecting bolt riveting jig for a master cylinder as embodiment 1 of the utility model, used for riveting the connecting bolt 03 onto the brake master cylinder 01, including a support seat 10 and a pressing device 20, the support seat 10 is used to place the brake master cylinder 01 and the connecting bolt 03 and play a supporting role; the pressing device 20 is arranged above the support seat 10; the pressing device 20 includes a lower pressing plate 21, two lower pressing rods 22 arranged side by side on the lower end surface of the lower pressing plate 21, and the lower end of the lower pressing rod 22 is provided with a first avoidance groove 221 for avoiding the connecting bolt 03, the lower pressing rod 22 moves downward to press the connecting bolt 03 onto the brake master cylinder 01, and also includes a driving mechanism or driving device for driving the pressing device 20 to move along the vertical direction. The existing technology can be used and no detailed description is given. The riveting jig of the utility model is used to place the parts to be riveted (brake master cylinder 01 and connecting bolts 03), and then the two pressing rods 22 of the pressing device 20 are pressed down at the same time to press the two connecting bolts 03 onto the brake master cylinder 01 at one time, thereby achieving fast and stable riveting, improving work efficiency and reducing labor intensity.

[0037] The brake master cylinder 01 mentioned in the utility model has pressure-bearing parts 02 on both sides, and the pressure-bearing parts 02 have riveting holes through which connecting bolts 03 pass. A riveting part for pressing into the riveting hole is arranged between the head and the threaded part of the connecting bolt 03. When riveting is completed, the riveting part is pressed into the riveting hole. Before riveting, the connecting bolt 03 passes through the riveting hole and is placed on the support seat 10, and after placement, the head end face of the connecting bolt 03 abuts against the upper end face of the support seat 10. The brake master cylinder 01 is suspended in the air under the action of the two connecting bolts 03. Therefore, when riveting, the connecting bolt 03 is turned upside down, and the pressure-bearing part 02 is located above the head of the connecting bolt 03.

[0038] The first avoidance groove 221 is arranged on the lower end surface of the lower pressure rod 22 and the inner wall is connected to the outer wall of the lower pressure rod 22, so that the riveted parts can be directly placed or pushed in from the front of the fixture; the support seat 10 includes a support base plate 11, a plurality of support columns 12 with their bottoms arranged on the support base plate 11, and a support middle plate 13 arranged above the plurality of support columns 12. The support middle plate 13 is provided with a second avoidance groove 131 for avoiding the brake master cylinder 01, so that the brake master cylinder 01 installed with connecting bolts 03 can be placed directly on the support base plate 11.

[0039] In order to make the riveting process smoother, the riveting jig also includes two sets of guide devices 30. The lower parts of the two sets of guide devices 30 are arranged on the support seat 10, and the lower pressing plate 21 is slidably connected to the upper parts of the guide devices 30. The two sets of guide devices 30 are distributed on both sides of the two lower pressing rods 22, which makes the whole process more stable and smooth. The guide device 30 includes a guide rod 31 and a reset spring 32 sleeved on the guide rod 31. The bottom of the guide rod 31 is arranged on the support seat 10, the lower pressing plate 21 is slidably connected to the guide rod 31, and the reset spring 32 is arranged between the support seat 10 and the lower pressing plate 21. The guide device 30 also includes a shaft sleeve 33 arranged on the lower pressing plate 21. The shaft sleeve 33 is sleeved on the guide rod 31 and is slidably connected to the guide rod 31. When the driving mechanism drives the lower pressing plate 21 and the lower pressing rod 22 to move downward, the lower end of the lower pressing rod 22 first abuts against the end surface of the pressed part 02, and then continues to press downward to press the riveted part of the connecting bolt 03 into the riveted hole, and at this time, the two return springs 32 store elastic potential energy. When the driving mechanism moves upward, the two return springs 32 release elastic potential energy, and the lower pressing plate 21 drives the lower pressing rod 22 to move upward under the action of the two return springs 32 to achieve the reset of the lower pressing rod 22, so as to facilitate the removal of the brake master cylinder 01 after riveting.

[0040] The lower pressing plate 21 is provided with a mounting hole for mounting the shaft sleeve 33, and is also provided with a stepped hole for mounting the lower pressing rod 22. The shaft sleeve 33 is directly fixedly provided on the lower pressing plate 21, and the lower end of the guide rod is fixedly provided on the support seat 10. The upper end passes through the shaft sleeve 33 and is fixedly provided with a limit block. The limit block can be fixedly provided on the upper end surface of the guide rod by bolts. Specifically, an internal threaded hole is provided on the upper end surface of the guide rod, and the bolt passes through the limit block and is screwed to the guide rod.

[0041] The lower pressing rod 22 is provided with an internal threaded hole against the end surface of the lower pressing plate 21, and a bolt is passed through the stepped hole and screwed to the internal threaded hole of the end surface of the lower pressing plate 21, so that the upper end of the lower pressing rod 22 is fixed or installed on the lower end surface of the lower pressing plate 21. The fixing method of the upper and lower ends of the support column 12 and the fixing method of the lower end of the guide rod 31 in this embodiment are consistent with the installation method of the lower pressing rod 22, and are all existing technologies, and will not be described in detail.

[0042] Example 2

[0043] See also Figures 4 to 8, is a riveting jig for the connecting bolt 03 of the master cylinder as the second embodiment of the utility model. The difference between this embodiment and the first embodiment is that a base 40 is added. During the riveting process, the pressure will be transmitted to the upper surface of the support seat 10, that is, the end face of the support middle plate 13, through the connecting bolt 03. Long-term stamping will easily cause a depression on the upper surface of the support seat 10. Therefore, a replaceable base 40 is provided to improve the service life of the overall jig. In addition, a detachable base 40 is provided. The card slot 421 on the base 40 can facilitate better confinement of the connecting bolt 03 on the support seat 10. The inner diameter of the card slot 421 can be replaced according to different specifications of the connecting bolt 03, so as to improve the utilization rate of the jig. Specifically, the upper end face of the support seat 10 is also provided with a base 40 detachably connected thereto. Specifically, the base 40 is detachably provided on the support middle plate 13, and the connecting bolt 03 is provided above the base 40.

[0044] The base 40 includes a connecting portion 41 located at the bottom and used to connect to the support seat 10, and a supporting portion 42 arranged above the connecting portion 41 and used to place the connecting bolt 03; a groove 132 for embedding the connecting portion 41 is arranged on the upper end surface of the support seat 10, and a magnet 50 is embedded at the bottom of the groove 132 or the bottom of the connecting portion 41, so as to better install the base 40 on the support seat 10, specifically located on the end surface of the supporting middle plate 13.

[0045] The upper end surface of the support portion 42 is provided with a slot 421 for embedding the head of the connecting bolt 03, so as to facilitate more stable placement of the connecting bolt 03 on the support seat 10, and at the same time prevent slippage during the riveting process, thereby improving the safety of the riveting process; the depth of the slot 421 is less than the height of the head of the connecting bolt 03.

[0046] The working principle of the riveting fixture of the utility model is as follows:

[0047] First, place the connecting bolt 03 on the brake master cylinder 01, and then turn it upside down on the support seat 10 or the base 40. The output end of the driving mechanism moves downward, driving the lower pressure plate 21 and the lower pressure rod 22 to move downward, and then press the brake master cylinder 01 downward, so that the riveted part of the connecting bolt 03 is pressed into the riveting hole. After the riveting is completed, the output end of the driving structure moves upward, and the lower pressure rod 22 moves upward under the action of the return spring 32, and finally the brake master cylinder 01 can be removed.

[0048] To sum up, the riveting jig of the utility model is used to place the parts to be riveted, and then the two pressing rods of the pressing device are pressed down at the same time to press the two connecting bolts onto the brake master cylinder at one time, thereby achieving fast and stable riveting, improving work efficiency and reducing labor intensity; furthermore, a detachable base is provided to facilitate increasing the service life of the overall jig, and furthermore, a detachable base is provided, and the card slot on the base can facilitate better confining the connecting bolts on the support seat, and the inner diameter of the card slot can be replaced according to different connecting bolt specifications, so as to improve the utilization rate of the jig.

[0049] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A connecting bolt riveting jig for a master cylinder, used for riveting a connecting bolt (03) onto a brake master cylinder (01), characterized in that: include: A support seat (10), the support seat (10) is used to place the brake master cylinder (01) and the connecting bolts (03) and play a supporting role; A pressing device (20), the pressing device (20) being arranged above the support seat (10); The pressing device (20) comprises a pressing plate (21), and two pressing rods (22) arranged side by side on the lower end surface of the pressing plate (21). The lower ends of the pressing rods (22) are provided with first avoidance grooves (221) for avoiding the connecting bolts (03). The pressing rods (22) move downward to press the connecting bolts (03) onto the master brake cylinder (01).

2. The connecting bolt riveting jig for the master cylinder according to claim 1, characterized in that: The first avoidance groove (221) is arranged on the lower end surface of the pressing rod (22), and the inner side wall is connected to the outer side wall of the pressing rod (22).

3. The connecting bolt riveting jig for the master cylinder according to claim 1, characterized in that: It also includes two groups of guide devices (30), the lower parts of the two groups of guide devices (30) are arranged on the support seat (10), and the lower pressing plate (21) is slidably connected to the upper parts of the guide devices (30).

4. The connecting bolt riveting jig for the master cylinder according to claim 3, characterized in that: The guide device (30) comprises a guide rod (31) and a return spring (32) sleeved on the guide rod (31); the bottom of the guide rod (31) is arranged on the support seat (10); the lower pressure plate (21) is slidably connected to the guide rod (31); and the return spring (32) is arranged between the support seat (10) and the lower pressure plate (21).

5. The connecting bolt riveting jig for the master cylinder according to claim 4, characterized in that: The guide device (30) further comprises a shaft sleeve (33) arranged on the lower pressing plate (21); the shaft sleeve (33) is sleeved on the guide rod (31) and is slidably connected to the guide rod (31).

6. The connecting bolt riveting jig for the master cylinder according to claim 1, characterized in that: The support seat (10) comprises a support base plate (11), a plurality of support columns (12) whose bottoms are arranged on the support base plate (11), and a support middle plate (13) arranged above the plurality of support columns (12), wherein a second avoidance groove (131) for avoiding the brake master cylinder (01) is arranged on the support middle plate (13).

7. The connecting bolt riveting jig for the master cylinder according to claim 1, characterized in that: The upper end surface of the support seat (10) is also provided with a base (40) which is detachably connected thereto, and the connecting bolt (03) is arranged above the base (40).

8. The connecting bolt riveting jig for the master cylinder according to claim 7, characterized in that: The base (40) comprises a connecting portion (41) located at the bottom and used to be connected to the support seat (10), and a supporting portion (42) arranged above the connecting portion (41) and used to place a connecting bolt (03).

9. The connecting bolt riveting jig for the master cylinder according to claim 1, characterized in that: The upper end surface of the support seat (10) is provided with a groove (132) for embedding the connecting portion (41), and a magnet (50) is embedded at the bottom of the groove (132) or at the bottom of the connecting portion (41).

10. The connecting bolt riveting jig for the master cylinder according to claim 8, characterized in that: The upper end surface of the support portion (42) is provided with a slot (421) for the head of the connecting bolt (03) to be embedded, and the depth of the slot (421) is less than the height of the head of the connecting bolt (03).