A piston brake master cylinder cup assembly device and assembly method

Abstract

The application provides a plunger brake master cylinder cup assembly device, which comprises a clamp base, cover plate air cylinders are symmetrically arranged at the bottom of the clamp base, a push head air cylinder is arranged at the bottom of one of the cover plate air cylinders, a mounting shaft is arranged at the center of the upper plate surface of the clamp base, the mounting shaft comprises a core shaft, a shifting piece, a connecting shaft and a spring, the core shaft is composed of an upper core shaft and a lower core shaft, a through hole penetrating through the upper and lower end surfaces is arranged in the upper core shaft, a cup mounting groove corresponding to the through hole is arranged on the upper end surface of the lower core shaft, the connecting shaft penetrates through the upper core shaft and is in contact with the cup mounting groove, a limiting baffle extending to the periphery is arranged at the top end of the connecting shaft, and the spring is arranged between the limiting baffle and the upper end surface of the core shaft. The plunger brake master cylinder cup assembly device is novel in structure, convenient and fast to operate, and does not damage the cup. The structure is simple, the operation is convenient, and the device has good popularization value.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of automobile brake master cylinder, especially a kind of plunger brake master cylinder cup assembly device and assembly method. TECHNICAL BACKGROUND

[0002] Brake master cylinder is the key component in automobile brake system, its main role is to move the displacement of pedal to push the piston in master cylinder to move and generate hydraulic pressure, to realize brake effect.In recent years, plunger brake master cylinder is widely used in various vehicle brake systems because it can meet the requirements of larger brake fluid flow, large stroke and large displacement. Figure 1 As shown in the figure, four plunger brake master cylinders are provided, and the cup is assembled in the cup groove inside the master cylinder bore, the cup has a center hole, and during operation, the piston reciprocates relative to the 01 cup and brake master cylinder 02.As the inner diameter of the cylinder hole is smaller than the outer diameter of the cup, the cup 01 needs to be deformed before being assembled into the cylinder hole.

[0003] At present, this master cylinder assembly has been used for several years.In recent years, for the assembly of this master cylinder assembly, manual assembly has been used, and the middle finger of the hand is used to assemble the cup one by one.This assembly method is as follows:

[0004] First, the middle finger of the hand is usually used to guide the deformation of the cup, and the cup is further pushed into the brake master cylinder installation groove;

[0005] Secondly, continue to press the cup from the point contacted by the middle finger, so that the pressing point enters the cup installation groove first;

[0006] Finally, press the cup clockwise to gradually enter the middle, until the initial pressing point, and complete the assembly of one cup.

[0007] Problems:

[0008] During the process of moving the cup with the finger, and during the process of pressing the cup and gradually pressing the cup with the finger, the cup may be cut;

[0009] Among the four cups, the lowermost cup is the most difficult to assemble, and the smaller the diameter of the master cylinder bore and the greater the depth of the cylinder hole, the more difficult it is to assemble, and the operator's finger root often cannot bear it;

[0010] The assembly efficiency is seriously low.

[0011] In the prior art, the plunger type master cylinder bowl assembly has solved how to assemble the bowl into the plunger pump cylinder bowl groove. For example, CN 106425988 A, a Chinese invention patent, disclosed on February 22, 2017, discloses a plunger cylinder bowl assembly device. However, the structure of the device needs to be further improved in terms of convenience and speed. SUMMARY

[0012] The purpose of the present application is to solve the above problems, provide a plunger type brake master cylinder bowl assembly device and assembly method, which has the advantages of novel structure, extremely convenient and fast operation, no damage to the bowl, etc.

[0013] In order to solve the above technical problems, the present application provides a plunger type brake master cylinder bowl assembly device, characterized in that: a clamp base is provided, the bottom of the clamp base is symmetrically provided with a cover plate air cylinder on both sides, one side of the cover plate air cylinder is provided with a push head air cylinder at the bottom, a mounting shaft is provided at the center of the upper plate surface of the clamp base, the mounting shaft comprises a core shaft, a paddle, a connecting shaft and a spring, the core shaft is composed of an upper core shaft and a lower core shaft, a through hole penetrating the upper and lower end faces is formed in the inner part of the upper core shaft, a bowl mounting groove corresponding to the through hole is formed in the upper end face of the lower core shaft, the connecting shaft penetrates the upper core shaft and corresponds to the bowl mounting groove, a limiting baffle extending to the periphery is provided at the top end of the connecting shaft, and a spring is arranged between the limiting baffle and the upper end face of the core shaft.

[0014] Improvements on the above technical solution: a boss is symmetrically arranged on the outer wall of the upper core shaft.

[0015] Further improvements on the above technical solution: a paddle is mounted on the outer wall of the core shaft, the upper part of the paddle is a connecting plate, and the lower part of the paddle is a lever.

[0016] A plunger type brake master cylinder bowl assembly device and an assembly method thereof are provided.

[0017] 1) In a natural state, the upper and lower parts of the bowl mounting groove on the mounting shaft are in a contracted state under the action of the spring force.

[0018] 2) After the two connecting shafts are pressed down, the bowl mounting groove on the mounting shaft is opened, and this state is maintained. After the bowl is inserted into the center hole of the clamp base, the cover plate air cylinder covers the bowl with the cover plate, and then the push head air cylinder operates to guide the bowl to a "U" shape. Then, the mounting shaft is pulled out and placed into the brake master cylinder mounting hole for positioning.

[0019] 3) The two connecting shafts are slightly loosened, the paddle is pushed, and the mounting shaft is rotated, so that the bowl is automatically assembled into the specified mounting groove. BRIEF DESCRIPTION OF DRAWINGS

[0021] ADVANTAGEOUS EFFECTS

[0022] The present invention discloses a plunger-type brake master cylinder cup assembly device with a novel mounting shaft structure, which is extremely convenient and quick to operate without damaging the cup. The structure is also simple and easy to operate, making it worthy of widespread application. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the plunger-type brake master cylinder.

[0024] Figure 2 This is a schematic diagram of the structure of the present invention.

[0025] Figure 3 This is a schematic diagram of the mounting shaft of the present invention.

[0026] Among them, 1 is the clamp base, 2 is the cover plate cylinder, 3 is the push head cylinder, 4 is the mounting shaft, 4.1 is the mandrel, 4.2 is the paddle, 4.3 is the connecting shaft, and 4.4 is the spring. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0028] like Figure 2 The new plunger-type brake master cylinder cup device shown mainly consists of a clamp base 1, a cover plate cylinder 2, a pusher cylinder 3, and a mounting shaft 4. The mounting shaft 4 is mainly composed of a spindle 4.1 (including upper and lower parts), a paddle 4.2, a connecting shaft 4.3, and a spring 4.4. The assembly principle of this invention is as follows: After manually pressing down the two connecting shafts, the cup mounting groove on the mounting shaft can open and maintain this state. After inserting the cup into the center hole of the cup already placed in the clamp base, the cover plate cylinder drives the cover plate to cover the cup. Then, the pusher cylinder immediately actuates, guiding the cup into a "U" shape. The mounting shaft is then pulled out and placed into the brake master cylinder mounting hole. The stop is positioned, the two connecting shafts are slightly loosened, the paddle is moved, and the mounting shaft is rotated. The cup is automatically assembled into the designated mounting groove.

[0029] In the above technical solutions, such as Figure 3 As shown, the mounting shaft structure consists of a spindle, a lever, a connecting shaft, and a spring, with a diameter of 32 mm and a boss height of (80.5) mm. Based on this invention, any invention that achieves the same purpose by simply changing the mounting shaft diameter and boss height h is still within the protection scope of this invention. The operation process of this invention is as follows:

[0030] The artificial puts the leather bowl in the base hole; takes the installation shaft and puts it in the base hole according to the position shown in the drawing, presses the two shafts, and makes the groove storing the sealing ring in the open state, and the hand should not be loosened; press the button to start, the cover plate cylinder acts to fold the two cover plates; the push head cylinder acts to push the sealing ring into the groove, and the cylinder stops; loosen the hand, under the action of the spring, the groove storing the sealing ring is tightened and presses the leather bowl; pull out the installation shaft; each cylinder returns to the original position; put it into the installation hole, and position it with the stopper, slightly loosen and press the shaft tightly, move the push piece, rotate the installation shaft to make the leather bowl completely enter the installation hole in the brake master cylinder hole. Take out the installation shaft and install the lowest leather bowl.

[0031] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily change the structure of the leather bowl clamp, the structure of the guide leather bowl deformation push head, and the structure of the installation shaft within the technical range disclosed by the present application, and still covered by the protection scope of the present application.

Claims

1. A plunger-type brake master cylinder cup assembly device, characterized in that: The fixture includes a clamp base, on which cover plate cylinders are symmetrically arranged on both sides of the bottom. One of the cover plate cylinders is equipped with a pusher cylinder at the bottom. An installation shaft is provided at the center of the upper plate surface of the clamp base. The installation shaft includes a spindle, a paddle, a connecting shaft, and a spring. The spindle is composed of an upper spindle and a lower spindle. The upper spindle has a through hole that penetrates the upper and lower end faces. The upper end face of the lower spindle has a cup mounting groove corresponding to the through hole. The connecting shaft passes through the upper spindle and contacts the cup mounting groove. The top of the connecting shaft has a limiting baffle that extends outwards. A spring is provided between the limiting baffle and the upper end face of the spindle. The outer wall of the upper mandrel is symmetrically provided with bosses; A lever is installed on the outer wall of the mandrel. The upper part of the lever is a connecting plate, and the lower part of the lever is a lever rod.

2. An assembly method for the plunger-type brake master cylinder cup assembly device as described in claim 1, comprising the following steps: 1) Under natural conditions, the upper and lower parts of the mounting groove of the mounting shaft are in a retracted state under the force of the spring; 2) After pressing down the two connecting shafts, the mounting groove of the leather cup on the mounting shaft opens. Keeping this state, insert the leather cup into the center hole of the leather cup that has been placed on the fixture base. Then, the cover plate cylinder drives the cover plate to cover the leather cup. The push head cylinder then moves to guide the leather cup into a "U" shape. Pull out the mounting shaft and put it into the mounting hole of the brake master cylinder. The stop is positioned. 3) Slightly loosen the two connecting shafts, move the lever, and rotate the mounting shaft. The diaphragm will automatically assemble into the designated mounting slot.

Images