Assembly tool for plunger type brake master cylinder leather cup

Abstract

The embodiment of the utility model relates to the technical field of plunger type brake master cylinder manufacturing, and discloses an assembly tool for a plunger type brake master cylinder leather cup, the assembly tool comprises a guide rod, the guide rod is suitable for extending into a cylinder hole of a brake master cylinder and penetrating through a center hole of the leather cup, an adjusting part is arranged on the guide rod, and the distance between the adjusting part and the end part of the guide rod is adjustable; the sleeve is arranged on the radial outer side of the guide rod in a sleeving manner; the push rod is movably arranged in the sleeve in a sleeved mode and arranged outside the guide rod in a sleeved mode, at least part of the end face of the end, facing the adjusting piece, of the push rod forms an inclined face, and the push rod is configured to push the leather cup into a mounting groove of the brake master cylinder. According to the assembly tool for the packing cup of the plunger type brake master cylinder, through mutual cooperation of the guide rod, the adjusting piece, the sleeve and the push rod, adaptive assembly of plunger type brake master cylinders of different strokes is achieved, the packing cup assembly precision is improved, the packing cup assembly difficulty is reduced, and the assembly efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of manufacturing technology of plunger-type brake master cylinders, and in particular to an assembly tooling for a plunger-type brake master cylinder piston cup. Background Technology

[0002] When assembling the prototype of the plunger brake master cylinder assembly, due to the small quantity and different piston strokes, it is impossible to mass-produce it on the production line. It is necessary to use manual tooling to assemble the piston cup. The existing simple tooling is relatively simple and cannot be used for plunger brake master cylinders with various assembly positions and sizes. Utility Model Content

[0003] In view of this, the present application provides an assembly fixture for a plunger-type brake master cylinder cup, which realizes the adaptive assembly of plunger-type brake master cylinders with different strokes, improves the assembly accuracy of the cup, reduces the assembly difficulty of the cup, and improves the assembly efficiency.

[0004] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0005] This application provides an assembly fixture for a plunger-type brake master cylinder cup, comprising: a guide rod adapted to extend into the cylinder bore of the brake master cylinder and pass through the center hole of the cup, the guide rod having an adjusting member, the distance between the adjusting member and the end of the guide rod being adjustable; a sleeve fitted radially outward of the guide rod; and a push rod movably fitted inside the sleeve and outside the guide rod, at least a portion of the end face of the push rod facing the adjusting member being formed as an inclined surface, the push rod being configured to push the cup into the mounting groove of the brake master cylinder.

[0006] The assembly fixture for the piston-type brake master cylinder cup provided in the embodiments of this application, through the mutual cooperation of the guide rod, adjusting component, sleeve and push rod, realizes the adaptive assembly of piston-type brake master cylinders with different strokes, improves the assembly accuracy of the cup, reduces the assembly difficulty of the cup, and improves the assembly efficiency.

[0007] In one possible implementation of this application, one end of the guide rod that extends into the master cylinder forms a base, the base abuts against the bottom of the master cylinder, the adjusting member is sleeved on the guide rod, and the distance between the adjusting member and the base is adjustable.

[0008] Thus, by adding a base, the end of the guide rod that extends into the brake master cylinder directly abuts against the bottom of the brake master cylinder, enhancing the stability and positioning accuracy of the assembly fixture, improving assembly efficiency and product quality. The adjusting component is mounted on the guide rod, and the distance between it and the base is adjustable, providing flexibility to adapt to brake master cylinders of different specifications.

[0009] In one possible implementation of this application, a first adjustment portion is formed on the guide rod, and a second adjustment portion is formed on the adjustment member. The adjustment member and the guide rod cooperate through the first adjustment portion and the second adjustment portion to adjust the distance between the adjustment member and the base.

[0010] Thus, by setting a first adjustment part on the guide rod and a second adjustment part on the adjustment component, and by using the cooperation of the first and second adjustment parts to adjust the distance between the adjustment component and the base, the accuracy and adaptability of the assembly tooling are further improved.

[0011] In one possible implementation of this application, the distance between the end face of the adjusting member away from the base and the end face of the base away from the adjusting member is the same as the distance between the mounting groove in the master cylinder and the bottom wall of the cylinder bore.

[0012] In one possible implementation of this application, the end face of the push rod facing the adjusting member has a connected first surface and a second surface, the first surface extending obliquely in the axial direction of the push rod, and the second surface extending in a direction perpendicular to the axial direction of the push rod.

[0013] In this way, the combination of inclined and flat surfaces reduces the risk of damage to the leather cup during the pressing process and improves assembly accuracy and quality.

[0014] In one possible implementation of this application, the push rod is rotatable relative to the guide rod about its axis, and the push rod is movable relative to the guide rod along its axis.

[0015] In one possible implementation of this application, the sleeve is provided with a limiting member, and the distance between the limiting member and the end of the sleeve is adjustable.

[0016] In one possible implementation of this application, the sleeve extends into the master cylinder of the brake, and the limiting member abuts against one end of the master cylinder of the brake.

[0017] This ensures that the part of the sleeve that extends into the brake master cylinder does not shift, thus guaranteeing the accuracy of the assembly.

[0018] In one possible implementation of this application, the angle between the first surface and the plane containing the axis of the push rod is 45°.

[0019] In this way, while ensuring the structural strength of the push rod end, the area of ​​the first and second surfaces is large enough, increasing the force-bearing area between the push rod and the cup, and reducing the risk of damage to the cup.

[0020] In one possible implementation of this application, the push rod is formed of nylon material. Attached Figure Description

[0021] Figure 1 An assembly diagram of the assembly tooling for the plunger-type brake master cylinder cup provided in the embodiments of this application;

[0022] Figure 2 This is an assembly diagram of the assembly fixture for the plunger-type brake master cylinder cup provided in an embodiment of this application, wherein the adjusting component and the guide rod are placed inside the brake master cylinder;

[0023] Figure 3 This is an assembly diagram of the assembly fixture for the plunger-type brake master cylinder cup provided in an embodiment of this application, wherein the cup is assembled.

[0024] Figure 4 This is a schematic diagram of the structure of a plunger-type brake master cylinder provided in an embodiment of this application;

[0025] Figure 5 An exploded view of the assembly fixture for the plunger-type brake master cylinder cup provided in the embodiments of this application.

[0026] Figure label:

[0027] 100. Assembly fixture; 1. Guide rod; 11. Base; 2. Adjusting component; 3. Sleeve; 31. Limiting component; 311. Fastener; 312. Hoop; 4. Push rod; 41. First surface; 42. Second surface; 200. Brake master cylinder; 201. Leather cup; 202. Mounting groove; 203. Cylinder bore. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0029] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0030] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0031] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium.

[0032] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0033] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0034] Currently, when assembling prototype plunger brake master cylinder assemblies, it is difficult to adopt a mass production line approach due to the small production quantity and variations in piston stroke. Furthermore, the current manual tooling design is relatively simple, lacking flexibility and adaptability, and cannot adequately meet the needs of plunger brake master cylinders with different assembly positions and sizes. This increases the complexity and time cost of the assembly work.

[0035] In view of this, this application provides an assembly fixture 100 for a plunger-type brake master cylinder cup, including: a guide rod 1, an adjusting component 2, a sleeve 3, and a push rod 4.

[0036] Specifically, refer to Figures 1-5As shown, the guide rod 1 is adapted to extend into the cylinder bore 203 of the brake master cylinder 200 and pass through the central hole of the cup 201. An adjusting member 2 is provided on the guide rod 1, and the distance between the adjusting member 2 and the end of the guide rod 1 is adjustable. A sleeve 3 is fitted radially outward of the guide rod 1. A push rod 4 is movably fitted inside the sleeve 3 and outside the guide rod 1. At least a portion of the end face of the push rod 4 facing the adjusting member 2 is formed as a bevel. The push rod 4 is configured to push the cup 201 into the mounting groove 202 of the brake master cylinder 200. Thus, the assembly fixture 100 for the plunger-type brake master cylinder cup is ingeniously designed. Through the cooperation of the guide rod 1, adjusting member 2, sleeve 3, and push rod 4, adaptability to pistons with different strokes and precise installation of the cup 201 are achieved.

[0037] Understandably, the guide rod 1 is inserted into the cylinder bore 203 of the brake master cylinder 200 and passes through the center hole of the piston cup 201, ensuring the correct position of the piston cup 201 during assembly and preventing it from shifting or tilting. The adjusting member 2 can move on the guide rod 1 to accommodate different piston strokes. After the distance is determined, the adjusting member 2 is locked to maintain the current distance between the adjusting member 2 and the end of the guide rod 1. The push rod 4 is located inside the sleeve 3, surrounding the outside of the guide rod 1. One end of the push rod 4 has a bevel design. When the push rod 4 is pushed along the axial direction of the sleeve 3, the piston cup 201 is tilted along the axial direction and fits against the bevel. This gradually presses the piston cup 201 into the mounting groove 202 of the brake master cylinder 200 while pushing the push rod 4. During the pushing process, the tilted arrangement of the piston cup 201 reduces resistance and facilitates pushing. With the pushing diameter unchanged, the bevel formed on the push rod 4 increases the force-bearing area between the push rod 4 and the piston cup 201, thereby reducing the risk of damage to the piston cup 201.

[0038] According to the assembly fixture 100 of the plunger brake master cylinder cup provided in the embodiment of this application, the adaptive assembly of plunger brake master cylinder 200 with different strokes is realized through the mutual cooperation of guide rod 1, adjusting component 2, sleeve 3 and push rod 4, which improves the assembly accuracy of cup 201, reduces the assembly difficulty of cup 201 and improves assembly efficiency.

[0039] In some embodiments of this application, such as Figure 2 As shown, one end of the guide rod 1 that extends into the brake master cylinder 200 forms a base 11, which abuts against the bottom of the brake master cylinder 200. An adjusting member 2 is fitted onto the guide rod 1, and the distance between the adjusting member 2 and the base 11 is adjustable. By adding the base 11, the end of the guide rod 1 that extends into the brake master cylinder 200 directly abuts against the bottom of the brake master cylinder 200, enhancing the stability and positioning accuracy of the assembly fixture 100, improving assembly efficiency and product quality. The adjustable distance between the adjusting member 2 fitted onto the guide rod 1 and the base 11 provides flexibility to accommodate brake master cylinders 200 of different specifications.

[0040] Understandably, the base 11, serving as the end structure of the guide rod 1 extending into the brake master cylinder 200, ensures the stability of the tooling during assembly, preventing positional displacement due to external forces. The base 11 maintains tight contact with the bottom of the brake master cylinder 200, ensuring that the central axis of the guide rod 1 aligns with the central axis of the brake master cylinder 200, thereby improving the accuracy of the piston cup 201's installation position. The adjusting member 2 can move along the guide rod 1 and lock in the desired position to adjust its distance from the base 11, allowing a single tooling to be suitable for brake master cylinders 200 with different piston strokes and to assemble piston cups 201 of different sizes and positions. Furthermore, by setting the adjusting member 2 to the same position during each assembly, the piston cup 201 can be pressed in to the same depth, ensuring consistent assembly quality.

[0041] In some embodiments of this application, a first adjusting portion is formed on the guide rod 1, and a second adjusting portion is formed on the adjusting member 2. The adjusting member 2 and the guide rod 1 cooperate through the first and second adjusting portions to adjust the distance between the adjusting member 2 and the base 11. By providing a first adjusting portion on the guide rod 1 and a second adjusting portion on the adjusting member 2, and by using the cooperation of the first and second adjusting portions to adjust the distance between the adjusting member 2 and the base 11, the accuracy and adaptability of the assembly fixture 100 are further improved.

[0042] It is understood that the first adjustment part is formed on the guide rod 1, the second adjustment part is formed on the adjustment member 2, and the base 11 is located at the end of the guide rod 1 that extends into the brake master cylinder 200, abutting against the bottom of the brake master cylinder 200 and providing stable support. The first adjustment part can be formed as an external thread, a rack, or a locking protrusion, etc., and the second adjustment part can be formed as an internal thread, a locking tooth, or a locking groove that cooperates with the first adjustment part. Through the precise cooperation of the first adjustment part and the second adjustment part, very fine distance adjustment can be achieved, ensuring the consistency and accuracy of each assembly.

[0043] Furthermore, in order to ensure that the adjusted distance remains unchanged, that is, the adjusting member 2 does not shift, a locking mechanism is provided, such as a locking screw, a spring clip, or other mechanism that can lock the adjusting member 2, including but not limited to this.

[0044] Reference Figure 2 As shown, the guide rod 1 has an external thread on its outer circumferential side, and the adjusting member 2 has an internal thread (i.e., the first adjusting part has an external thread and the second adjusting part has an internal thread). The guide rod 1 and the adjusting member 2 are engaged by the internal and external threads to adjust the distance between the adjusting member 2 and the base 11.

[0045] In some embodiments of this application, such as Figure 3As shown, the distance between the end face of the adjusting member 2 away from the base 11 and the end face of the base 11 away from the adjusting member 2 is the same as the distance between the mounting groove 202 and the bottom wall of the cylinder bore 203 in the master cylinder 200. This ensures that the piston cup 201 can be precisely pressed into the designated position.

[0046] It is understandable that the distance between the end face of the adjusting component 2 away from the base 11 and the end face of the base 11 away from the adjusting component 2 is the same as the distance between the mounting groove 202 and the bottom wall of the cylinder bore 203 in the brake master cylinder 200. This ensures that the adjustment distance in the assembly fixture 100 corresponds completely to the internal structure of the brake master cylinder 200, so that the piston cup 201 can be accurately installed in the corresponding mounting groove 202. As a result, the assembly fixture 100 can not only adapt to different models of brake master cylinders 200, but also ensure the consistency and accuracy of each assembly, significantly improving work efficiency and product quality, reducing human error and improving assembly quality.

[0047] In some embodiments of this application, such as Figure 1 As shown, the end face of the push rod 4 facing the adjusting member 2 has a connected first surface 41 and a second surface 42. The first surface 41 extends obliquely in the axial direction of the push rod 4, and the second surface 42 extends in a direction perpendicular to the axial direction of the push rod 4. It can be understood that the first surface 41 is formed as an inclined surface, and the second surface 42 is formed as a plane, and the second surface 42 extends radially along the push rod 4. The clear stop signal provided by the second surface 42 helps the operator accurately determine whether the cup 201 has been correctly installed, thus improving assembly accuracy. When the push rod 4 is pushed along the axis of the sleeve 3, the cup 201 is inclined along the axis and fits against the first surface 41. This gradually presses the cup 201 into the mounting groove 202 of the brake master cylinder 200 while pushing the push rod 4. During the pushing process, the inclined arrangement of the cup 201 reduces resistance and facilitates pushing. With the pushing diameter unchanged, the inclined surface formed on the push rod 4 increases the force-bearing area between the push rod 4 and the cup 201, thereby reducing the risk of damage to the cup 201. Once the cup 201 is pushed into the predetermined position, the second surface 42 rotates around the axis of the push rod 4 and presses the cup 201 into the mounting groove 202.

[0048] Therefore, by combining the design of inclined planes and flat planes, the risk of damage to the leather cup 201 during the pressing process is reduced, and the assembly accuracy and assembly quality are improved.

[0049] In some embodiments of this application, the push rod 4 is rotatable relative to the guide rod 1 about its axis, and the push rod 4 is movable relative to the guide rod 1 along its axis. (Refer to...) Figure 3As shown, guide rod 1, push rod 4, and sleeve 3 are arranged coaxially. When push rod 4 is pushed along the axis of sleeve 3, the cup 201 is inclined along the axis and fits against the first surface 41. When push rod 4 pushes cup 201 to the position of adjusting component 2, push rod 4 can no longer push. At this time, push rod 4 is rotated, so that the second surface 42 of push rod 4 rotates circumferentially along cup 201, thereby pressing cup 201 circumferentially into mounting groove 202. Finally, push rod 4, sleeve 3, and guide rod 1 are removed to complete the assembly. In this way, the assembly accuracy of cup 201 is guaranteed, and the operation is simple and easy to use.

[0050] In some embodiments of this application, such as Figure 3 As shown, the sleeve 3 is provided with a limiting member 31, and the distance between the limiting member 31 and the end of the sleeve 3 is adjustable. It can be understood that the limiting member 31 is provided on the sleeve 3, and the distance between the limiting member 31 and the end of the sleeve 3 that extends into the brake master cylinder 200 is adjustable. The limiting member 31 is provided to adjust the length of the sleeve 3 extending into the brake master cylinder 200, and cooperates with the adjusting member 2 to accurately press the piston cup 201 into the mounting groove 202.

[0051] like Figures 1-3 As shown, the limiting member 31 includes a fastener 311 and a sleeve 312. When the sleeve 312 is fitted into the target position, the fastener 311 is used to lock the sleeve 312 to the current target position.

[0052] In some embodiments of this application, such as Figure 3 As shown, the sleeve 3 extends into the brake master cylinder 200, and the limiting member 31 abuts against one end of the brake master cylinder 200. This ensures that the part of the sleeve 3 extending into the brake master cylinder 200 does not shift, thereby ensuring the assembly accuracy.

[0053] In some embodiments of this application, the angle between the first surface 41 and the plane containing the axis of the push rod 4 is 45°. It is understood that the angle between the first surface 41 and the second surface 42 is 135°. This ensures the structural strength of the end of the push rod 4 while also ensuring that the areas of the first surface 41 and the second surface 42 are sufficiently large. The cup 201 is arranged obliquely along the axial direction and fits against the first surface 41, thereby gradually pressing the cup 201 into the mounting groove 202 of the brake master cylinder 200 while pushing the push rod 4. Furthermore, the oblique arrangement of the cup 201 during the pushing process reduces resistance and facilitates pushing. With the pushing diameter remaining constant, the inclined surface formed on the push rod 4 increases the force-bearing area between the push rod 4 and the cup 201, thereby reducing the risk of damage to the cup 201. Once the cup 201 is pushed into the predetermined position, the second surface 42 rotates around the axis of the push rod 4, pressing the cup 201 into the mounting groove 202.

[0054] Because nylon has a low coefficient of friction, requires no additional lubricant, has good chemical corrosion resistance, low density, light weight, and low cost, the push rod 4 is made of nylon. Furthermore, nylon is relatively soft and will not scratch or damage the surface of the cup 201 as easily as hard metals, helping to protect the integrity of the cup 201.

[0055] The following reference Figures 1-5 The assembly steps of the assembly tooling 100 for the plunger-type brake master cylinder cup according to an embodiment of this application are described as follows:

[0056] First, adjust the adjusting member 2 to a suitable height, ensuring that the distance between the end face of the adjusting member 2 away from the base 11 and the end face of the base 11 away from the adjusting member 2 is the same as the distance between the mounting groove 202 and the bottom wall of the cylinder bore 203 in the brake master cylinder 200. At the same time, adjust the distance between the limiting member 31 and the end of the sleeve 3 that extends into the brake master cylinder 200 to a suitable height.

[0057] Next, the adjusting component 2 is placed into the brake master cylinder 200, the push rod 4 is placed into the sleeve 3, and the leather cup 201 is installed at the end of the push rod 4 located in the sleeve 3 (i.e. the end where the inclined surface is located).

[0058] Then, insert the sleeve 3, push rod 4 and diaphragm cup 201 into the brake master cylinder 200, push the push rod 4, and push the diaphragm cup 201 to the position of the mounting groove 202;

[0059] Next, rotate push rod 4 one revolution to press the leather cup 201 into the mounting groove 202;

[0060] Finally, remove push rod 4, sleeve 3 and guide rod 1 in sequence to complete the assembly of leather cup 201.

[0061] Next, adjust the positions of the limiting member 31 and the adjusting member 2, and repeat the above steps to complete the assembly of the other piston cups 201 of the current brake master cylinder 200.

[0062] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An assembly fixture (100) for a plunger-type brake master cylinder cup, characterized in that, include: A guide rod (1) is adapted to extend into the cylinder bore (203) of the brake master cylinder (200) and pass through the center hole of the piston cup (201). An adjusting member (2) is provided on the guide rod (1), and the distance between the adjusting member (2) and the end of the guide rod (1) is adjustable. Sleeve (3), the sleeve (3) is sleeved on the radial outer side of the guide rod (1); A push rod (4) is movably fitted inside the sleeve (3) and outside the guide rod (1). At least a portion of the end face of the push rod (4) facing the adjusting member (2) is formed as an inclined surface. The push rod (4) is configured to push the cup (201) into the mounting groove (202) of the brake master cylinder (200).

2. The assembly fixture (100) for the plunger-type brake master cylinder cup according to claim 1, characterized in that, One end of the guide rod (1) that extends into the master brake cylinder (200) forms a base (11), the base (11) abuts against the bottom of the master brake cylinder (200), the adjusting member (2) is sleeved on the guide rod (1), and the distance between the adjusting member (2) and the base (11) is adjustable.

3. The assembly fixture (100) for the plunger-type brake master cylinder cup according to claim 2, characterized in that, A first adjustment portion is formed on the guide rod (1), and a second adjustment portion is formed on the adjustment member (2). The adjustment member (2) and the guide rod (1) cooperate through the first adjustment portion and the second adjustment portion to adjust the distance between the adjustment member (2) and the base (11).

4. The assembly fixture (100) for the plunger-type brake master cylinder cup according to claim 3, characterized in that, The distance between the end face of the adjusting member (2) facing away from the base (11) and the end face of the base (11) facing away from the adjusting member (2) is the same as the distance between the mounting groove (202) in the brake master cylinder (200) and the bottom wall of the cylinder bore (203).

5. The assembly tooling (100) for the plunger-type brake master cylinder cup according to any one of claims 1-4, characterized in that, The end face of the push rod (4) facing the adjusting member (2) has a first surface (41) and a second surface (42) connected together. The first surface (41) extends obliquely in the axial direction of the push rod (4), and the second surface (42) extends in a direction perpendicular to the axial direction of the push rod (4).

6. The assembly fixture (100) for the plunger-type brake master cylinder cup according to claim 5, characterized in that, The push rod (4) can rotate relative to the guide rod (1) about the axis of the push rod (4), and the push rod (4) can move relative to the guide rod (1) along the axis of the push rod (4).

7. The assembly fixture (100) for the plunger-type brake master cylinder cup according to any one of claims 1-4, characterized in that, The sleeve (3) is provided with a limiting member (31), and the distance between the limiting member (31) and the end of the sleeve (3) is adjustable.

8. The assembly fixture (100) for the plunger-type brake master cylinder cup according to claim 7, characterized in that, The sleeve (3) extends into the master cylinder (200), and the limiting member (31) abuts against one end of the master cylinder (200).

9. The assembly fixture (100) for the plunger-type brake master cylinder cup according to claim 5, characterized in that, The angle between the first surface (41) and the plane containing the axis of the push rod (4) is 45°.

10. The assembly tooling (100) for the plunger-type brake master cylinder cup according to any one of claims 1-4, characterized in that, The push rod (4) is made of nylon.

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