High-pressure common rail pump valve body and steel ball press-fitting device

Abstract

The utility model discloses a high-pressure common rail pump valve body and steel ball press-fitting device which comprises a workbench, and a tool positioning module, a steel ball feeding module, a valve body feeding module, a load module and a control device are arranged on the workbench. The tool positioning module is used for clamping a pump body; the steel ball feeding module is used for putting steel balls into the pump body; the valve body feeding module is used for placing a valve body into a pump body; the load module is used for moving the tool positioning module and pressing the mounted steel ball and valve body; the control device is electrically connected with the tool positioning module, the steel ball feeding module, the valve body feeding module and the load module. The automatic press-fitting device can realize automatic press-fitting of the valve body and the steel ball of the pump body, reduces errors caused by manual operation, and improves production efficiency and consistency.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure common rail pump technology, specifically to a high-pressure common rail pump valve body and a steel ball pressing device. Background Technology

[0002] The high-pressure common rail pump is the core component of high-pressure common rail technology. Its main responsibility is to pressurize fuel to extremely high pressures (typically tens of megapascals) and distribute it to the injectors in each cylinder through the common rail. This technology achieves precise fuel injection control through the high-pressure pump, thereby improving engine performance and fuel economy. The design and manufacturing of high-pressure common rail pumps require high standards to ensure reliability and efficiency under high-pressure environments. The structure of a high-pressure common rail pump mainly includes the following key components: pump body, camshaft, drive ring, tappets, etc. To ensure reliability during use, the installation of each component, especially the pump body, has high requirements.

[0003] In existing technologies, the press-fitting of the valve body and steel balls in the pump body mainly relies on mechanical equipment. This method is simple and widely used in various hydraulic systems. With the advancement of manufacturing processes, the accuracy and efficiency of mechanical press-fitting have gradually improved. However, mechanical press-fitting is subject to human error and inaccuracies, resulting in substandard pump bodies after press-fitting. Utility Model Content

[0004] To address the aforementioned issues, this invention provides a high-pressure common rail pump valve body and steel ball pressing device, which enables automatic pressing of the valve body and steel ball, reducing errors caused by human operation.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-pressure common rail pump valve body and steel ball pressing device, including a workbench, on which a tooling positioning module, a steel ball feeding module, a valve body feeding module, a load module, and a control device are arranged; the tooling positioning module is used to clamp the pump body; the steel ball feeding module is used to put the steel ball into the pump body; the valve body feeding module is used to place the valve body into the pump body; the load module is used to move the tooling positioning module and press the installed steel ball and valve body; the control device is electrically connected to the tooling positioning module, the steel ball feeding module, the valve body feeding module, and the load module respectively.

[0006] As a preferred technical solution of this utility model: the tooling positioning module includes a base, which is used to connect with the load module; the base is connected to the stand via a first lifting device; the stand is provided with a clamping device, which is used to fix the pump body; and a support device is provided above the base, which is used to support the pump body.

[0007] As a preferred technical solution of this utility model: the first lifting device includes a mounting cylinder disposed on the side of the base, and the output end of the mounting cylinder is connected to the stand through a pull rod; the support device includes a support cylinder disposed on the base, and the output end of the support cylinder is connected to a support block.

[0008] As a preferred technical solution of this utility model: the load module includes a press support, a press head device is provided inside the press support, a press device is provided above the press support, and the press device is connected to the press head device; a moving device is provided below the press support, and the moving device is connected to the tooling positioning module.

[0009] As a preferred technical solution of this utility model: the pressure head device includes a partition plate disposed within the press support, a slide cylinder disposed below the partition plate, the output end of the slide cylinder being connected to the pressure head switching plate, a valve body pressure rod and a steel ball pressure rod disposed on the pressure head switching plate, the pressurizing device including a reciprocating servo electric cylinder, the output end of the reciprocating servo electric cylinder cooperating with the valve body pressure rod and the steel ball pressure rod; a force sensor mounting base is disposed at the output end of the reciprocating servo electric cylinder; the moving device includes a linear module, the linear module being connected to a motor; first slide rails are disposed on both sides of the linear module; a first slider is disposed on the first slide rails.

[0010] As a preferred technical solution of this utility model: the steel ball feeding module includes a steel ball storage, a ball storage support plate is provided below the steel ball storage, a double cylinder is provided below the steel ball storage, and the output end of the double cylinder is connected to the feeding pipe.

[0011] As a preferred technical solution of this utility model: the valve body feeding module includes a vibratory plate, the vibratory plate is connected to the valve body material channel and the feeding device; a pneumatic gripper is provided on one side of the feeding device, and the pneumatic gripper is connected to a telescopic cylinder.

[0012] As a preferred technical solution of this utility model: the feeding device includes a feeding bracket, a second slide rail is provided above the feeding bracket, a second slider is provided above the second slide rail, a feeding slide plate is provided above the second slider, a feeding push plate is provided on the feeding slide plate, and the feeding push plate is connected to a second cylinder.

[0013] As a preferred technical solution of this utility model: a laser beam switch is provided on the feeding bracket.

[0014] This utility model has the following beneficial effects:

[0015] 1. It can automatically press-fit valve bodies and steel balls into the pump body, reducing human error and improving production efficiency and consistency.

[0016] 2. Force sensors can be installed to detect pressure and ensure high-quality press fitting. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 for Figure 1 The main view;

[0019] Figure 3 for Figure 1 The right view;

[0020] Figure 4 for Figure 1 A bottom view;

[0021] Figure 5 A schematic diagram of the overall structure of the working positioning module;

[0022] Figure 6 for Figure 5 The left view;

[0023] Figure 7 for Figure 6 A sectional view along the AA direction;

[0024] Figure 8 for Figure 5 Rear view;

[0025] Figure 9 for Figure 5 Top view;

[0026] Figure 10 A schematic diagram of the overall structure of the steel ball feeding module and the load module;

[0027] Figure 11 for Figure 10 The main view;

[0028] Figure 12 for Figure 10 The left view;

[0029] Figure 13 for Figure 10 Top view;

[0030] Figure 14 A schematic diagram of the overall structure of the valve body feeding module;

[0031] Figure 15 for Figure 10 The main view;

[0032] Figure 16 for Figure 10 The left view;

[0033] Figure 17 for Figure 10 Top view.

[0034] Figures 1-17 In the middle, 1. Workbench; 2. Tooling positioning module; 3. Steel ball feeding module; 4. Valve body feeding module; 5. Load module; 6. Control device; 7. Pump body; 8. Valve body; 9. Control box; 10. Button box; 11. Electrical box; 12. Three-color light; 13. Observation window;

[0035] 201. Base; 202. First lifting device; 203. Stand; 204. Clamping device; 205. Downward-pressing elbow clamp; 206. Support device; 207. Mounting cylinder; 208. Pull rod; 209. Mounting plate; 210. First linear bearing; 211. Sliding shaft; 213. Limiting plate; 214. Adjusting screw; 215. Support cylinder; 216. Support block; 217. Guide shaft; 218. Second linear bearing; 219. Support block;

[0036] 301. Steel ball storage tank; 302. Ball storage tank support plate; 303. Support rod; 304. Double cylinder; 305. Feed pipe;

[0037] 401. Vibratory feeder; 402. Valve body feed channel; 403. Feeding device; 404. Pneumatic gripper; 405. Telescopic cylinder; 406. Feeding bracket; 407. Second slide rail mounting plate; 408. Second slide rail; 410. Second slider; 411. Feeding slide plate; 412. Feeding push plate; 413. Second cylinder; 414. Laser beam switch; 415. Buffer mounting plate; 416. Buffer;

[0038] 501. Press bracket; 502. Press head device; 503. Pressurizing device; 504. Moving device; 505. Partition plate; 506. Slide table cylinder; 507. Press head switching plate; 508. Valve body pressure rod; 509. Steel ball pressure rod; 510. Reversible servo electric cylinder; 511. Force sensor mounting base; 512. First slide rail mounting plate; 513. Linear module; 514. Motor; 515. First slide rail; 516. First slider. Detailed Implementation

[0039] To make the objectives and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0040] like Figures 1-4As shown, this utility model embodiment provides a high-pressure common rail pump valve body and steel ball pressing device, including a workbench 1. The workbench 1 is equipped with a tooling positioning module 2, a steel ball feeding module 3, a valve body feeding module 4, a load module 5, and a control device 6. The tooling positioning module 2 is used to clamp the pump body 7; the steel ball feeding module 3 is used to put the steel ball into the pump body 7; the valve body feeding module 4 is used to place the valve body into the pump body 7; the load module 5 is used to move the tooling positioning module 2 and press the steel ball and valve body 8 installed on the pump body 7; the control device 6 is electrically connected to the tooling positioning module 2, the steel ball feeding module 3, the valve body feeding module 4, and the load module 5 respectively. The control device 6 includes a control box 9, a button box 10, and an electrical box 11, etc., and a PLC device is installed in the electrical box 11. For convenient observation and operation, a three-color light 12 and an observation window 13 are also provided on the workbench 1.

[0041] like Figures 5-9 As shown, the tooling positioning module 2 includes a base 201, which is used to connect to the load module 5; the base 201 is connected to the stand 203 via a first lifting device 202; a clamping device 204 is provided on the stand 203, preferably a downward pressing elbow clamp 205, which is used to fix the pump body 7; a support device 206 is provided above the base 201, which is used to support the pump body 7.

[0042] The first lifting device 202 includes a mounting cylinder 207 disposed on the side of the base 201. The output end of the mounting cylinder 207 is connected to the stand 203 via a pull rod 208. Above the base 201 is a mounting plate 209. Below the mounting plate 209 are multiple sets of first linear bearings 210, preferably four sets. The first linear bearings 210 are preferably 16mm flanged linear bearings, distributed at the four corners of the mounting plate 209. A sliding shaft 211 is disposed inside the first linear bearing 210. The top of the sliding shaft 211 is connected to the stand 203, and the bottom of the sliding shaft 211 is provided with a limit plate 213. After the mounting cylinder 207 is activated by a control command, it drives the base 201 to move up and down. The four sets of sliding shafts 211 play a role in limiting and positioning. To limit the stroke of the mounting cylinder 207, an adjusting screw 214 is provided between the base 201 and the stand 203.

[0043] The support device 206 includes a support cylinder 215 mounted on the mounting plate 209. The support cylinder 215 is preferably a hydraulic lifting type, and its output end is connected to a support block 216. The lower part of the stand 203 is open to accommodate the support cylinder 215. The shape of the support block 216 matches the shape of the pump body 7. A guide shaft 217 is provided between the stand 203 and the support block 216, located at both ends of the support block 216. A second linear bearing 218, preferably an 8mm flanged linear bearing, is provided at the guide shaft 217 below the stand 203. A support block 219 is also provided on the base 201. Upon receiving a control command, the support cylinder 215 extends and retracts, thereby moving the support block 216 up and down. The support block 216 supports the pump body 7, while the support block 219 provides auxiliary support, ensuring the pump body 7 is securely installed.

[0044] like Figures 10-13 As shown, the load module 5 includes a press support 501, a press head device 502 is provided inside the press support 501, a press device 503 is provided above the press support 501, and the press device 503 is connected to the press head device 502; a moving device 504 is provided below the press support 501, and the moving device 504 is connected to the tooling positioning module 2.

[0045] The press head device 502 includes a partition 505 disposed within the press support 501. A slide cylinder 506 is disposed below the partition 505. The output end of the slide cylinder 506 is connected to a press head switching plate 507. A valve body pressure rod 508 and a steel ball pressure rod 509 are disposed on the press head switching plate 507. The pressurizing device 503 includes a reciprocating servo electric cylinder 510. The output end of the reciprocating servo electric cylinder 510 cooperates with the valve body pressure rod 508 and the steel ball pressure rod 509. A force sensor mounting base 511 is provided at the output end of cylinder 510. The force sensor mounting base 511 is used to install a force sensor. After receiving the command from the control device 6, the slide cylinder 506 drives the pressure head switching plate 507 to move, thereby positioning the valve body pressure rod 508 or the steel ball pressure rod 509 below the output end of the reciprocating servo electric cylinder 510. This applies pressure to the valve body or steel ball installed on the pump body 7, pressing the valve body 8 or the steel ball tightly. The force sensor is used to monitor the pressure in real time.

[0046] The moving device 504 includes a first slide rail mounting plate 512 and a linear module 513. The first slide rail mounting plate 512 is mounted on the worktable 1, and the linear module 513 is connected to the motor 514. First slide rails 515 are provided on both sides of the linear module 513, and first sliders 516 are provided on the first slide rails 515. The first slide rails 515, the linear module 513, and the motor 514 are mounted on the first slide rail mounting plate 512. After the base 201 is connected to the first slider 516 and the linear module 513, the motor 514, upon receiving a command from the control device 6, drives the tooling positioning module 2 to the designated position via the linear module 513.

[0047] The steel ball feeding module 3 includes a steel ball storage compartment 301. A ball storage support plate 302 is positioned below the steel ball storage compartment 301. The support plate 302 is connected to the steel ball storage compartment 301 via a support rod 303. Essentially, the support plate 302 is used to fix the steel ball storage compartment 301 within the workbench 1. A double cylinder 304 is positioned below the steel ball storage compartment 301. The output end of the double cylinder 304 is connected to a feeding pipe 305. Upon receiving a command from the control device 6, the double cylinder 304 actuates, causing the feeding pipe 305 to move up and down, thereby drawing the steel balls from the steel ball storage compartment 301 out of the feeding pipe 305 and into the empty space in the pump body 7. The preferred material for the steel ball storage compartment 301 is plexiglass.

[0048] like Figures 14-17 As shown, the valve body feeding module 4 includes a vibratory plate 401, which is connected to the valve body material channel 402 and the feeding device 403; a pneumatic gripper 404 is provided on one side of the feeding device 403, which is connected to the telescopic cylinder 405.

[0049] The feeding device 403 includes a feeding bracket 406, a second slide rail mounting plate 407 above the feeding bracket 406, a second slide rail 408 on the second slide rail mounting plate 407, a second slider 410 above the second slide rail 408, a feeding slide plate 411 above the second slider 410, and a feeding push plate 412 on the feeding slide plate 411. The feeding push plate 412 is connected to the second cylinder 413. To verify the quality of the valve body 8, a laser beam switch 414 is installed at one end of the feeding bracket 406. After receiving the instruction from the control device 6, the second cylinder 413 drives the feeding slide plate 411 to move on the second slide rail 408 via the feeding push plate 412, pushing the valve body 8 from the end of the valve body material channel 402 to the laser beam switch 414 to check if the height is qualified. If the height of the valve body 8 is qualified, the control device 6 issues an instruction, and the pneumatic gripper 404 and the telescopic cylinder 405 actuate to put the qualified valve body 8 into the pump body 7. Buffer mounting plates 415 are provided on both sides above the feeding bracket 406, and buffers 416 are installed on the buffer mounting plates 415. The installation of buffers 416 makes the entire feeding device 403 operate more smoothly.

[0050] The working principle of this specific implementation is as follows: The pump body 7 is installed onto the stand 203 via the clamping device 204. The control device 6 controls the installation cylinder 207 to adjust the pump body 7 to a suitable position. The control device 6 is activated, the motor 514 actuates, driving the pump body 7 to the designated position and then stopping. The second cylinder 413 of the valve body feeding module 4 actuates, pushing the valve body 8 to the laser beam switch 414. After verifying the height is correct, the pneumatic gripper 404 clamps the valve body 8 and places it into the pump body 7. The cylinder of the steel ball feeding module 3 is activated, feeding a single ball... The steel ball is drawn from the steel ball magazine 301 and falls into the hole of the pump body 7. At this time, the motor 514 brings the tooling positioning module 2 under the load module 5. The support cylinder 215 of the tooling positioning module 3 provides upward support to one side of the pump body 7. The reversing servo electric cylinder 510 drives the valve body pressure rod 508 to press the valve body 8. The slide cylinder 506 actuates, switching the steel ball pressure rod 509 to below the reversing servo electric cylinder 510. The reversing servo electric cylinder 510 drives the steel ball pressure rod 509 to press the steel ball. The force sensor detects the pressure in real time. This implementation realizes automatic pressing of the valve body 8 and steel ball, which can reduce errors caused by human operation, improve production efficiency and consistency, ensure accurate pressing, and enable large-scale production. The introduction of a real-time monitoring system ensures high-quality pressing.

[0051] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A high-pressure common rail pump valve body and steel ball pressing device, comprising a workbench (1), characterized in that: The workbench (1) is equipped with a tooling positioning module (2), a steel ball feeding module (3), a valve body feeding module (4), a load module (5), and a control device (6); the tooling positioning module (2) is used to clamp the pump body (7); the steel ball feeding module (3) is used to put the steel ball into the pump body (7); the valve body feeding module (4) is used to place the valve body (8) into the pump body (7); the load module (5) is used to move the tooling positioning module (2) and press the installed steel ball and valve body (8); the control device (6) is electrically connected to the tooling positioning module (2), the steel ball feeding module (3), the valve body feeding module (4), and the load module (5).

2. The high-pressure common rail pump valve body and steel ball pressing device according to claim 1, characterized in that: The tooling positioning module (2) includes a base (201) for connecting to the load module (5); the base (201) is connected to the stand (203) above the base (201) via a first lifting device (202); a clamping device (204) is provided on the stand (203) for fixing the pump body (7); a support device (206) is provided above the base (201) for supporting the pump body (7).

3. The high-pressure common rail pump valve body and steel ball pressing device according to claim 2, characterized in that: The first lifting device (202) includes a mounting cylinder (207) disposed on the side of the base (201), the output end of the mounting cylinder (207) being connected to the stand (203) via a pull rod (208); the support device (206) includes a support cylinder (215) disposed on the base (201), the output end of the support cylinder (215) being connected to a support block (216).

4. The high-pressure common rail pump valve body and steel ball pressing device according to claim 1, characterized in that: The load module (5) includes a press support (501), a press head device (502) is provided inside the press support (501), a press device (503) is provided above the press support (501), and the press device (503) is connected to the press head device (502); a moving device (504) is provided below the press support (501), and the moving device (504) is connected to the tooling positioning module (2).

5. The high-pressure common rail pump valve body and steel ball pressing device according to claim 4, characterized in that: The pressure head device (502) includes a partition (505) disposed within the press support (501). A slide cylinder (506) is disposed below the partition (505). The output end of the slide cylinder (506) is connected to a pressure head switching plate (507). A valve body pressure rod (508) and a steel ball pressure rod (509) are disposed on the pressure head switching plate (507). The pressurizing device (503) includes a reciprocating servo electric cylinder (510). The output end of the ) cooperates with the valve body pressure rod (508) and the steel ball pressure rod (509); the output end of the folding servo electric cylinder (510) is provided with a force sensor mounting seat (511); the moving device (504) includes a linear module (513), which is connected to the motor (514); the linear module (513) is provided with first slide rails (515) on both sides; and a first slider (516) is provided on the first slide rail (515).

6. The high-pressure common rail pump valve body and steel ball pressing device according to claim 1, characterized in that: The steel ball feeding module (3) includes a steel ball storage (301), a ball storage support plate (302) is provided below the steel ball storage (301), a double cylinder (304) is provided below the steel ball storage (301), and the output end of the double cylinder (304) is connected to the feeding pipe (305).

7. The high-pressure common rail pump valve body and steel ball pressing device according to claim 1, characterized in that: The valve body feeding module (4) includes a vibratory plate (401), which is connected to the valve body material channel (402) and the feeding device (403); a pneumatic gripper (404) is provided on one side of the feeding device (403), which is connected to the telescopic cylinder (405).

8. The high-pressure common rail pump valve body and steel ball pressing device according to claim 7, characterized in that: The feeding device (403) includes a feeding bracket (406), a second slide rail (408) is provided above the feeding bracket (406), a second slider (410) is provided above the second slide rail (408), a feeding slide plate (411) is provided above the second slider (410), a feeding push plate (412) is provided on the feeding slide plate (411), and the feeding push plate (412) is connected to the second cylinder (413).

9. The high-pressure common rail pump valve body and steel ball pressing device according to claim 8, characterized in that: A laser beam switch (414) is provided on the feeding bracket (406).

Images