A kind of integrated riveting pressure head tool for HCU assembly normally open valve

Abstract

The utility model discloses a kind of for HCU assembly normally open valve integrated riveting pressure head tool, including tool main body, the top outer wall of tool main body is screwed with fixed gland, and the inside of fixed gland is connected and installed with the piston rod of servo electric cylinder, the bottom outer wall of tool main body is opened along the axial position position and has cylindrical cavity, and the bottom inner wall of cylindrical cavity is inserted with rebound spring, the pre-head assembly is provided at the bottom of rebound spring, and the riveting pressure head that the bottom insertion center of pre-head assembly is penetrated and is opened with the locating slot of riveting pressure head, electromagnetic valve small assembly is placed in the bottom outer wall of riveting pressure head;The utility model is equipped with this structure's tool, when riveting press-fitting when actual riveting process to drawing requirement product, can be according to the press-fitting state of each component, guarantee the force of electromagnetic valve when normally open valve works in ESC system is in sealed state, make the tool result of normally open valve riveting more accurate, and higher production efficiency is obtained.

Description

Technical Field

[0001] This utility model relates to the field of riveting tooling technology, and in particular to an integrated riveting head tooling for the normally open valve of HCU assembly. Background Technology

[0002] In both domestic and international automotive hydraulic braking system manufacturing, advanced tooling and riveting methods are used for precise and rapid product press-fitting. The purpose of this is:

[0003] (1) Ensure the accuracy of product riveting data, the reliability of production equipment structure, and the credibility of test data.

[0004] (2) Improve production efficiency. The production equipment can quickly obtain the riveting results, making the production cycle faster.

[0005] (3) Improve the production qualification rate, ensure the accuracy of riveting data during the production process, reduce equipment misjudgment, and make the production qualification rate higher.

[0006] However, the tooling for the riveting head of the normally open valve of the HCU assembly is generally a single cylinder head clamping test form, which cannot guarantee the force during the riveting process of the normally open valve of the HCU assembly. This results in inaccurate riveting test results for the normally open valve, which is prone to misjudgment and reduces production efficiency and product qualification rate. Utility Model Content

[0007] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an integrated riveting head tooling for normally open valves in HCU assemblies.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A riveting head fixture for an HCU assembly normally open valve integrated includes a fixture body. A fixing cover is screwed to the top outer wall of the fixture body, and a piston rod of a servo electric cylinder is snapped into the inside of the fixing cover. A cylindrical cavity is opened along the axial position on the bottom outer wall of the fixture body, and a return spring is inserted into the bottom inner wall of the cylindrical cavity. A pre-pressing head assembly is provided at the bottom of the return spring, and a riveting head with a positioning slot is inserted into the bottom of the pre-pressing head assembly. A solenoid valve sub-assembly is placed on the bottom outer wall of the riveting head, and a riveting valve block is provided below the fixture body.

[0010] As a further improvement of this utility model: the bottom outer wall of the riveting head has threaded holes that are evenly distributed, and screws are screwed onto the inner wall of the threaded holes.

[0011] As a further embodiment of this utility model: the riveting valve block is located directly below the riveting head and has a riveting slot, and a riveting block is inserted into the bottom inner wall of the riveting slot. A solenoid valve sub-assembly is provided above the riveting block.

[0012] As a further embodiment of this utility model: the outer wall dimension of the bottom of the solenoid valve subassembly is adapted to the inner wall dimension of the riveting slot, and the riveting slot and the solenoid valve subassembly form an interference fit.

[0013] As a further improvement of this utility model: a first cylindrical through groove is opened through the center of the pre-pressure head assembly, and the first cylindrical through groove is connected to the top of the solenoid valve sub-assembly.

[0014] As a further improvement of this utility model: a dust suction duct is opened through the outer wall of the top side of the tooling body, and an air extraction pipe is welded to the outer wall of the dust suction duct; a second cylindrical through groove is opened at the inner axial position of the tooling body.

[0015] As a further improvement of this utility model: the dust suction duct is located at the top of the second cylindrical through groove, and the dust suction duct is perpendicular to the second cylindrical through groove.

[0016] Compared with the prior art, this utility model provides an integrated riveting head tooling for the normally open valve of the HCU assembly, which has the following advantages:

[0017] The riveting head fixture designed in this paper, when using this fixture structure to rivet and press the product required by the drawing during the actual riveting process, can ensure that the solenoid valve is in a sealed state when the normally open valve is working in the ESC system, based on the pressing state of each component. This makes the tooling result of riveting the normally open valve more accurate and achieves higher production efficiency.

[0018] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the overall structure of an integrated riveting head tooling for normally open valves in HCU assemblies proposed in this utility model.

[0020] Figure 2 This is an enlarged structural diagram of the first part of an integrated riveting head tooling for normally open valves in HCU assemblies proposed in this utility model.

[0021] Figure 3 This is an enlarged structural diagram of the second part of an integrated riveting head tooling for normally open valves in HCU assemblies proposed in this utility model.

[0022] Figure 4This is a schematic diagram of the overall structure of an integrated riveting head tooling for normally open valves in HCU assembly proposed in this utility model.

[0023] In the diagram: 1. Tooling body; 2. Fixed pressure cover; 3. Servo electric cylinder; 4. Cylindrical cavity; 5. Pre-pressure head assembly; 6. Rebound spring; 7. Positioning slot; 8. Riveting pressure head; 9. Threaded hole; 10. Screw; 11. First cylindrical through groove; 12. Solenoid valve sub-assembly; 13. Riveting valve block; 14. Riveting slot; 15. Riveting block; 16. Dust suction air duct; 17. Air extraction pipe; 18. Second cylindrical through groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example 1:

[0025] An integrated riveting head tooling for normally open valves in HCU assemblies, as described in this embodiment... Figure 1-4 As shown, the fixture includes a tooling body 1. A fixing cover 2 is screwed onto the top outer wall of the tooling body 1, and the piston rod of a servo electric cylinder 3 is snapped into the inside of the fixing cover 2. A cylindrical cavity 4 is opened along the axis of the bottom outer wall of the tooling body 1, and a spring 6 is inserted into the bottom inner wall of the cylindrical cavity 4. A pre-pressing head assembly 5 is provided at the bottom of the spring 6, and a riveting head 8 with a positioning slot 7 is inserted into the bottom of the pre-pressing head assembly 5. A solenoid valve sub-assembly 12 is placed on the bottom outer wall of the riveting head 8, and a riveting valve block 13 is provided below the tooling body 1.

[0026] The bottom outer wall of the riveting head 8 has threaded holes 9 evenly distributed, and screws 10 are screwed into the inner wall of the threaded holes 9. The riveting valve block 13 is located directly below the riveting head 8 and has a riveting slot 14. A riveting block 15 is inserted into the bottom inner wall of the riveting slot 14. A solenoid valve sub-assembly 12 is provided above the riveting block 15.

[0027] The outer wall dimension of the bottom of the solenoid valve subassembly 12 is adapted to the inner wall dimension of the riveting slot 14, and the riveting slot 14 and the solenoid valve subassembly 12 form an interference fit.

[0028] The pre-pressure head assembly 5 has a first cylindrical through groove 11 through its center, and the first cylindrical through groove 11 is connected to the top of the solenoid valve sub-assembly 12.

[0029] With this tooling structure, when riveting and pressing the product as required by the drawing during the actual riveting process, the pressure on the solenoid valve is in a sealed state when the normally open valve is working in the ESC system, based on the pressing state of each component. This makes the tooling result of riveting the normally open valve more accurate and achieves higher production efficiency.

[0030] In this embodiment, the fixing cover 2 is first installed on the piston rod of the servo cylinder 3, and the fixing cover 2 is screwed to the top of the tooling body 1. Then, the other components of the tooling are assembled. Then, the solenoid valve sub-assembly 12 is placed at the center of the bottom of the riveting head 8, and the riveting block 15 is placed inside the riveting slot 14. The pre-pressing head assembly 5 is pressed against the solenoid valve sub-assembly 12, and the servo cylinder 3 is pressed down. At this time, the return spring 6 is retracted by force, and the riveting head 8 contacts the riveting block 15. At this time, the set riveting pressure is applied, and a riveting sealing surface is formed at the riveting point. The pressure on the normally open valve sub-assembly when it is working in the ESC system is ensured by the pressure of the solenoid valve when it is working in the ESC system. The riveting is completed to ensure that the pressure of the solenoid valve when it is working in the ESC system is in a sealed state, so that a seal is formed at the normally open valve, thereby making the riveting result more accurate. Example 2:

[0031] A tooling for an integrated riveting head for normally open valves in HCU assemblies, such as Figure 1-4 As shown, this embodiment makes the following additions based on embodiment 1: a dust suction duct 16 is opened through the outer wall of the top side of the tooling body 1, and an air extraction pipe 17 is welded to the outer wall of the dust suction duct 16. A second cylindrical through groove 18 is opened at the inner axial position of the tooling body 1. The dust suction duct 16 is located at the top of the second cylindrical through groove 18, and the dust suction duct 16 and the second cylindrical through groove 18 are perpendicular to each other.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tooling for HCU assembly normally open valve integrated riveting ram, comprising a tooling body (1), characterized in that, The top outer wall of the tooling body (1) is screwed with a fixed pressure cover (2), and the piston rod of the servo electric cylinder (3) is snapped into the inside of the fixed pressure cover (2). A cylindrical cavity (4) is opened at the axial position on the bottom outer wall of the tooling body (1), and a spring spring (6) is inserted into the bottom inner wall of the cylindrical cavity (4). A pre-pressing head assembly (5) is provided at the bottom of the spring spring (6), and a riveting head (8) with a positioning slot (7) is inserted into the bottom of the pre-pressing head assembly (5). A solenoid valve sub-assembly (12) is placed on the bottom outer wall of the riveting head (8), and a riveting valve block (13) is provided below the tooling body (1).

2. The integrated riveting head tooling for normally open valves in HCU assemblies according to claim 1, characterized in that, The bottom outer wall of the riveting head (8) has threaded holes (9) that are evenly distributed, and screws (10) are screwed into the inner wall of the threaded holes (9).

3. The integrated riveting head tooling for normally open valves in HCU assemblies according to claim 1, characterized in that, The riveting valve block (13) is located directly below the riveting head (8) and has a riveting slot (14). A riveting block (15) is inserted into the bottom inner wall of the riveting slot (14). A solenoid valve sub-assembly (12) is provided above the riveting block (15).

4. The integrated riveting head tooling for normally open valves in HCU assemblies according to claim 3, characterized in that, The outer wall dimension of the bottom of the solenoid valve subassembly (12) is adapted to the inner wall dimension of the riveting slot (14), and the riveting slot (14) and the solenoid valve subassembly (12) form an interference fit.

5. The integrated riveting head tooling for normally open valves in HCU assemblies according to claim 3, characterized in that, The pre-pressure head assembly (5) has a first cylindrical through groove (11) at its center, and the first cylindrical through groove (11) is connected to the top of the solenoid valve sub-assembly (12).

6. The integrated riveting head tooling for normally open valves in HCU assemblies according to claim 1, characterized in that, The tooling body (1) has a dust suction duct (16) extending through one side of its top outer wall, and a suction pipe (17) is welded to the outer wall of the dust suction duct (16). A second cylindrical through groove (18) is opened at the inner axial position of the tooling body (1).

7. The integrated riveting head tooling for normally open valves in HCU assemblies according to claim 6, characterized in that, The dust suction duct (16) is located at the top of the second cylindrical through groove (18), and the dust suction duct (16) is perpendicular to the second cylindrical through groove (18).

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