A piston press-in guide device

Abstract

The utility model discloses a piston press -mounting guide device. Piston press -mounting guide device is used for the press -mounting of piston in the body of forceps, and the body of forceps is provided with the piston, and the piston press -mounting guide device includes strip -shaped guide component and shell, and the inside of shell is provided with the shell inner chamber of opening downward, and the upper end of guide component is set in the shell inner chamber and is connected with the top of shell inner chamber, the body of forceps is located below piston press -mounting guide device, and the lower end of guide component is out of shell and contacts with piston and guides piston and installs in the body of forceps in coaxial positioning. The utility model directly utilizes the guide of guide rod and leads the piston screw to go out the screw hole of the body of forceps once, reduces manual adjustment, improves the efficiency, and reduces production cost.

Description

Technical Field

[0001] This utility model relates to an automotive braking system, and more particularly to a piston press-fitting guide device. Background Technology

[0002] In current piston press-fitting processes, the piston screw is located within the cylinder bore of the clamp body and cannot be directly manipulated. Furthermore, due to the lack of a guiding device, the clamp body must be swung left and right to force the piston screw through the tail hole of the clamp body to complete the piston press-fitting. Therefore, it is evident that the piston press-fitting process without a guiding device in the existing technology is inefficient. Utility Model Content

[0003] To address the problems in the background art, this utility model provides an automatic piston pressing guide device. During piston pressing, the guide rod remains within the keyway of the piston screw. After pressing, the screw directly exits through the tail hole of the clamp body, achieving a successful pressing in one step, avoiding multiple pressing operations, and improving production efficiency.

[0004] The technical solution adopted in this utility model is: The piston press-fitting guide device is used for press-fitting the piston inside the clamp body. The piston is provided inside the clamp body. The piston press-fitting guide device includes a strip-shaped guide component and a housing. The housing has an inner cavity with an opening facing downwards. The upper end of the guide component is located in the inner cavity of the housing and is connected to the top of the inner cavity of the housing. The clamp body is located below the piston press-fitting guide device. The lower end of the guide component extends out of the housing, contacts the piston, and guides the piston to be coaxially positioned and installed inside the clamp body.

[0005] The guide component includes a strip-shaped guide rod and a spring that extends and retracts vertically. The upper end of the guide rod has a flange, which is fixedly connected to the lower end of the spring and elastically connected to the top surface of the inner cavity of the outer casing via the spring. The upper end face of the piston has a stepped keyway that gradually decreases in size from top to bottom at its center. The lower end of the guide rod has a stepped boss structure that gradually decreases in size from top to bottom and matches the stepped keyway on the upper end face of the piston. The diameter of the inner cavity of the outer casing matches the diameter of the guide component, allowing the spring to extend and retract vertically within the inner cavity of the outer casing, forming a sliding pair.

[0006] The outer casing includes a cylindrical guide rod seat, an internal hexagon screw, and a cylindrical fixing seat. The piston press-fitting guide device is disposed inside the press. The upper part of the press is provided with a press head. The fixing seat is disposed below the press head of the press and is fixedly connected to the press head of the press. The fixing seat is disposed on the guide rod seat and together with the guide rod seat through the internal hexagon screw forms an integral outer casing. The cross-sectional diameters of the fixing seat and the guide rod seat are the same.

[0007] The fixing seat has multiple circular through holes arranged circumferentially on its upper surface. Each circular through hole penetrates the fixing seat vertically. The upper surface of the guide rod seat has a circular hole at the corresponding position of each circular through hole. The circular through holes and the circular holes are fixedly connected by hexagonal socket screws, thus fixing the fixing seat and the guide rod seat together. The lower end of the fixing seat has a fixing seat cavity with an opening facing downwards. The guide rod seat has a guide rod circular hole that penetrates vertically. The guide rod circular hole of the guide rod seat is coaxially arranged with the inner cavity of the fixing seat and they are interconnected to form the inner cavity of the outer shell. The guide rod circular hole is a stepped circular hole that is larger at the top and smaller at the bottom. The diameter of the guide rod flange matches the diameter of the upper surface of the guide rod circular hole. The flange of the guide rod is used to limit the spring inside the guide rod seat.

[0008] The guide rod, spring, guide rod seat, and fixed seat are arranged coaxially.

[0009] The press is equipped with a drive device at its upper end. The press also includes a long strip-shaped press handle, which is connected to one side of the upper end of the press and is rotatably connected to the drive device.

[0010] The lower end of the drive device is connected to the piston pressing guide device. The press handle controls the drive device at the upper end of the press to move up and down, thereby controlling the piston pressing guide device at the lower end of the drive device to move up and down.

[0011] The clamp body is provided with a cylinder bore, and the upper end of the clamp body is provided with a tail hole communicating with the cylinder bore. The piston is disposed in the cylinder bore. The piston press-fitting guide device, the piston and the tail hole of the clamp body are arranged coaxially. The upper end of the piston moves upward from the cylinder bore of the clamp body through the piston press-fitting guide device and is fixedly connected to the tail hole of the clamp body.

[0012] The beneficial effects of this utility model are: when pressing the piston, the guide rod is always in the keyway of the piston screw, and the piston screw is directly guided by the guide rod to pass through the screw hole of the clamp body in one go. After pressing, the screw directly passes through the tail hole of the clamp body, achieving the effect of successful pressing in one go, reducing manual adjustment, avoiding multiple pressing, improving production efficiency and reducing production costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the piston press-fitting guide device of this utility model; Figure 2 This is a schematic diagram of the piston and clamp body after the piston has been press-fitted.

[0014] Figure 1 In the middle: 1. Guide rod, 2. Guide rod seat, 3. Spring, 4. Socket head screw, 5. Fixture, 6. Piston, 7. Clamp body, 8. Piston tooling base, 9. Press handle. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] like Figure 1 As shown, the piston press-fitting guide device is used for press-fitting the piston 6 inside the clamp body 7. The piston 6 is provided inside the clamp body 7. The piston press-fitting guide device includes a strip-shaped guide component and a cylindrical outer shell. The outer shell has an inner cavity with an opening facing downwards. The upper end of the guide component is located in the inner cavity of the outer shell and is fixedly connected to the top of the inner cavity of the outer shell. The clamp body 7 is located below the piston press-fitting guide device. The lower end of the guide component extends out of the outer shell, contacts the piston 6, and guides the piston 6 to be coaxially positioned and installed inside the clamp body 7.

[0017] The guide component includes a strip-shaped guide rod 1 and a spring 3 that extends and retracts vertically. The upper end of the guide rod 1 is provided with a flange, and the flange of the guide rod 1 is fixedly connected to the lower end of the spring 3 and elastically connected to the top surface of the inner cavity of the outer shell through the spring 3.

[0018] The piston 6 has a stepped keyway that gradually decreases in size from top to bottom at the center of its upper end face, and the guide rod 1 has a stepped boss structure that gradually decreases in size from top to bottom at its lower end, which matches the stepped keyway on the upper end face of the piston 6.

[0019] The inner diameter of the outer shell matches the diameter of the guide component, allowing the spring 3 to slide vertically within the outer shell. The guide rod 1 moves vertically within the outer shell via the vertical extension and retraction of the spring 3.

[0020] The outer casing includes a cylindrical guide rod seat 2, an internal hexagon screw 4, and a cylindrical fixing seat 5. The piston press-fitting guide device is located inside the press. The upper part of the press is equipped with a press head. The fixing seat 5 is located below the press head and is fixedly connected to the press head. The fixing seat 5 is located on the guide rod seat 2 and together with the guide rod seat 2 through the internal hexagon screw 4, they form an integral outer casing. The cross-sectional diameters of the fixing seat 5 and the guide rod seat 2 are the same.

[0021] The fixed base 5 has multiple circular through holes arranged circumferentially on its upper end face. Each circular through hole penetrates the fixed base 5 vertically. The upper end face of the guide rod seat 2 has a circular hole at the corresponding position of each circular through hole. The circular through holes and the circular holes are fixedly connected by hexagon socket screws 4, thus fixing the fixed base 5 and the guide rod seat 2 together. The guide rod seat 2 is connected to the fixed base 5 to form an integral structure. The lower end of the fixed base 5 has a fixed base cavity with an opening facing downwards. The guide rod seat 2 has a guide rod circular hole that penetrates vertically. The guide rod circular hole of the guide rod seat 2 is coaxially arranged with the fixed base cavity and they are interconnected to form the inner cavity of the outer shell. The guide rod circular hole is a stepped circular hole that is larger at the top and smaller at the bottom. The flange diameter of the guide rod 1 matches the upper end face diameter of the guide rod circular hole. The flange of the guide rod 1 is used to limit the spring 3 inside the guide rod seat 2.

[0022] The flange at the top of the guide rod 1 is used to limit the spring 3 inside the guide rod seat 2. The guide rod seat 2 is connected to the fixed seat 5, and the spring 3 moves within the fixed seat 5. The guide rod 1, spring 3, guide rod seat 2, and fixed seat 5 are arranged coaxially.

[0023] The press is equipped with a drive unit at the upper end and also includes a long, strip-shaped press handle 9. The press handle 9 is connected to one side of the upper end of the press and is rotatably connected to the drive unit. The lower end of the drive unit is connected to a piston pressing guide device. The press handle 9 controls the up-and-down movement of the drive unit at the upper end of the press, thereby controlling the overall up-and-down movement of the piston pressing guide device at the lower end of the drive unit.

[0024] The clamp body 7 has a cylinder bore inside, and the upper end of the clamp body 7 has a tail hole that communicates with the cylinder bore. The piston 6 is installed in the cylinder bore. The piston press-fitting guide device, the piston 6 and the tail hole of the clamp body 7 are arranged coaxially. The upper end of the piston 6 moves upward from the cylinder bore of the clamp body 7 through the piston press-fitting guide device and is fixedly connected to the tail hole of the clamp body 7.

[0025] After piston 6 is installed into the cylinder bore of clamp body 7, the piston pressing guide device automatically guides piston 6 into the shaft hole at the tail end of clamp body 7. The lower end of guide rod 1 remains in the keyway of piston 6 from the moment piston 6 is pressed into clamp body 7 until the pressing of piston 6 is completed.

[0026] The piston press-fitting guide device is used to guide the upper part of the piston 6's screw directly into the tail hole of the clamp body 7, i.e., the screw hole, during piston 6 press-fitting, achieving successful installation in one step. The upper flange of the guide rod 1 is fixed and limited by the spring 3. The lower end of the guide rod 1 contacts the internal spline of the piston's screw 8. The guide rod seat 2 is connected to the fixed seat 5 through the internal hex screw 4 and fixed on the press spindle. When the press presses down, the lower end of the guide rod 1 contacts the internal spline of the piston 6's screw. As the piston 6 moves upward, the spring 3 in the device contracts, and the screw of the piston 6 moves with the guide rod 1 and passes out of the screw hole of the clamp body 7.

[0027] The assembly and operation process of the piston press-fitting guide device of this utility model is as follows: First, pre-install piston 6 into the cylinder bore of clamp body 7. Then, place the clamp body 7 and piston 6 assembly on the piston pressing fixture base 8. Move the press handle 9 to insert guide rod 1 into the tail hole of clamp body 7 and into the cylinder bore of clamp body 7, so that the lower end of guide rod 1 contacts the keyway of piston 6. Move the press handle 9 to press down the press. As the press presses down, spring 3 contracts within guide rod seat 2. Piston 6 rises as guide rod 1 contracts, thus passing through the tail hole of clamp body 7, completing the press-fitting of piston 6. The piston 6 is then installed into clamp body 7. The result is as follows: Figure 2 As shown.

[0028] More specifically, pulling down the press handle 9 drives the drive device, causing the upper part of the press to press down as a whole, so that the guide rod seat 2 directly contacts the upper end face of the clamp body 7. The guide rod seat 2 applies downward pressure to the clamp body 7 and the piston 6 assembly below. Because the clamp body 7 and the piston 6 assembly are supported by the piston tooling base 8 below and the pressure of the press above, the guide rod 1 is pressed down by the press, causing the spring 3 to contract inside the guide rod seat 2. The piston 6 rises with the contraction of the guide rod 1 and passes through the tail hole of the clamp body 7, completing the pressing of the piston 6 inside the clamp body 7.

[0029] During piston pressing, guide rod 1 is always inside the keyway of piston 6 screw. After pressing, the screw directly passes through the tail hole of the clamp body, achieving the effect of successful pressing in one go, avoiding multiple pressing, improving production efficiency and reducing production costs.

Claims

1. A piston press-fitting guide device, the piston press-fitting guide device being used for press-fitting a piston (6) inside a clamp body (7), the piston (6) being disposed inside the clamp body (7), characterized in that, It includes a strip-shaped guide component and a housing. The housing has an inner cavity with an opening facing downwards. The upper end of the guide component is located in the inner cavity and connected to the top of the inner cavity. The clamp body (7) is located below the piston press-fitting guide device. The lower end of the guide component extends out of the housing and contacts the piston (6) and guides the piston (6) to be coaxially positioned and installed in the clamp body (7).

2. The piston press-fitting guide device according to claim 1, characterized in that, The guide component includes a strip-shaped guide rod (1) and a spring (3) that extends and retracts vertically. The upper end of the guide rod (1) is provided with a flange. The flange of the guide rod (1) is fixedly connected to the lower end of the spring (3) and elastically connected to the top surface of the inner cavity of the outer shell through the spring (3).

3. The piston press-fitting guide device according to claim 2, characterized in that, The piston (6) has a stepped keyway that gradually decreases in size from top to bottom at the center of its upper end face. The guide rod (1) has a stepped boss structure that gradually decreases in size from top to bottom at its lower end, which matches the stepped keyway on the upper end face of the piston (6).

4. The piston press-fitting guide device according to claim 2, characterized in that, The inner diameter of the outer shell is matched with the diameter of the guide component, so that the spring (3) can extend and retract in the inner cavity of the outer shell to form a sliding pair.

5. The piston press-fitting guide device according to claim 1, characterized in that, The outer shell includes a cylindrical guide rod seat (2), an internal hexagon screw (4), and a cylindrical fixing seat (5). The piston press-fitting guide device is located inside the press. The upper part of the press is provided with a press head. The fixing seat (5) is located below the press head and is fixedly connected to the press head. The fixing seat (5) is located on the guide rod seat (2) and together with the guide rod seat (2) through the internal hexagon screw (4) to form an entire outer shell. The cross-sectional diameters of the fixing seat (5) and the guide rod seat (2) are the same.

6. A piston press-fitting guide device according to claim 2 or 5, characterized in that, The fixed seat (5) is provided with a plurality of circular through holes arranged circumferentially on the upper end face. Each circular through hole penetrates the fixed seat (5) vertically. The upper end face of the guide rod seat (2) is provided with a circular hole at the position corresponding to each circular through hole. The circular through holes and the circular holes are fixedly connected by hexagonal screws (4), so that the fixed seat (5) and the guide rod seat (2) are fixedly connected. The lower end of the fixed seat (5) is provided with a fixed seat cavity with an opening facing downward. The guide rod seat (2) is provided with a guide rod circular hole that penetrates vertically. The guide rod circular hole of the guide rod seat (2) is coaxially arranged with the inner cavity of the fixed seat and interconnects with each other to form the inner cavity of the outer shell. The guide rod circular hole is a stepped circular hole with a larger upper part and a smaller lower part. The flange diameter of the guide rod (1) matches the upper end face diameter of the guide rod circular hole. The flange of the guide rod (1) is used to limit the spring (3) inside the guide rod seat (2).

7. A piston press-fitting guide device according to claim 6, characterized in that, The guide rod (1), spring (3), guide rod seat (2) and fixed seat (5) are arranged coaxially.

8. The piston press-fitting guide device according to claim 1, characterized in that, The press is provided with a drive device at the upper end, and the press also includes a long strip-shaped press handle (9). The press handle (9) is connected to one side of the upper end of the press and is rotatably connected to the drive device.

9. A piston press-fitting guide device according to claim 8, characterized in that, The lower end of the drive device is connected to the piston pressing guide device. The press handle (9) controls the drive device at the upper end of the press to move up and down, thereby controlling the piston pressing guide device at the lower end of the drive device to move up and down.

10. A piston press-fitting guide device according to claim 1, characterized in that, The clamp body (7) is provided with a cylinder hole, and the upper end of the clamp body (7) is provided with a tail hole that communicates with the cylinder hole. The piston (6) is provided in the cylinder hole. The piston press-fitting guide device, the piston (6) and the tail hole of the clamp body (7) are arranged coaxially. The upper end of the piston (6) moves upward from the cylinder hole of the clamp body (7) and is fixedly connected to the tail hole of the clamp body (7) by being guided by the piston press-fitting guide device.

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