High-pressure pump oil inlet valve assembly assembling workbench

Abstract

The high-pressure pump oil inlet valve assembly assembling workbench comprises an assembling table body, an O-shaped ring feeding mechanism, a pneumatic clamping and transferring assembly and a pre-assembling module are arranged on the assembling table body, a fixing plate is arranged at the pre-assembling module, a clamping block is connected to the fixing plate in a sliding mode, a transverse hole is formed in the fixing plate, and a clamping groove is formed in the transverse hole. A push rod is slidably connected to the transverse hole and penetrates through a through hole formed in the clamping block, the end of the push rod is further connected with a threaded sleeve through threads, and the push rod is sleeved with a second spring. According to the valve body preassembling device, under the elastic action of a second spring, a push rod pushes a clamping block to move till the clamping block moves to the preset position of the preassembling module and clamps and fixes a valve body, at the moment, the clamping block is also aligned with a first clamping groove, under the elastic action of a first spring, the clamping block can move downwards till the clamping block is clamped with the first clamping groove, and at the moment, the position of the clamping block is fixed; and the clamping blocks can stably clamp and fix the valve body.

Description

Technical Field

[0001] The invention relates to the technical field of a high-pressure pump oil inlet valve, and in particular to an assembly workbench for an oil inlet valve component of a high-pressure pump. Background Art

[0002] The high-pressure fuel pump is one of the core components in the diesel engine fuel system. Its main function is to raise the low-pressure fuel to high pressure through a mechanical pump or an electronic pump, and then spray the fuel into the cylinder through the fuel injector for ignition and combustion. A one-way valve is usually set in the oil inlet line of the high-pressure fuel pump. It is used to prevent the oil from returning to the high-pressure fuel pump. The high-pressure fuel pump needs to provide a stable high-pressure fuel supply. Once air is introduced or there is a fault inside the fuel pump, the fuel may flow back, causing serious damage to the high-pressure fuel pump. The existence of the one-way valve can effectively prevent the backflow of oil and gas and protect the normal operation of the high-pressure fuel pump.

[0003] During the processing of the high-pressure pump oil inlet valve assembly, an assembly machine is required to pre-assemble the O-ring and the valve body. That is, the O-ring is pre-assembled with the valve body under the pre-assembly module under the cooperation of the feeding mechanism and the pneumatic clamping and pneumatic clamping transfer assembly.

[0004] However, the pre-assembled module on the assembly table uses the elastic force of the spring to fix the valve body with the clamp block, and the clamp block lacks a corresponding limit structure. Therefore, when the clamp block is subjected to external force and the spring is compressed, the clamp block will also move, thereby releasing the fixation of the valve body, thereby affecting the normal pre-assembly of the valve body.

[0005] Therefore, it is necessary to improve the traditional valve body preassembly workbench so that it can avoid the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to solve the above-mentioned problem and to propose an assembly workbench for an oil inlet valve assembly of a high-pressure pump.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: A high-pressure pump oil inlet valve assembly assembly workbench includes an assembly table body, on which an O-ring feeding mechanism, a pneumatic clamping and transferring assembly and a pre-installation module are provided, the pre-installation module is provided with a fixed plate, and a clamping block is slidably connected to the fixed plate, a transverse hole is provided on the fixed plate, and a push rod is slidably connected to the transverse hole, and the push rod passes through a through hole provided on the clamping block, the end of the push rod is also connected to a threaded sleeve via a thread, a spring 2 is provided on the push rod, and a limit member for limiting the push rod is provided on the fixed plate.

[0008] Preferably, the limit member includes a sliding sleeve slidably connected to the push rod, an L-shaped bent plate is fixed on the sliding sleeve, a vertical hole is provided at the bending part of the L-shaped bent plate, a corresponding hole is also provided on the L-shaped bent plate, a vertical rod is slidably connected at the vertical hole, and a fixed plate is fixed on the vertical rod, a clamping block is fixed at the bottom of the fixed plate, the clamping block passes through the corresponding hole and engages with a clamping groove provided on the fixed plate, a spring is sleeved on the vertical rod, and a positioning member for positioning the position of the vertical rod is provided on the L-shaped bent plate.

[0009] Preferably, a stop block is fixed to one end of the sliding sleeve, and the stop block abuts against one end of the second spring, and the other end of the second spring abuts against the bent portion of the fixing plate.

[0010] Preferably, a second card slot corresponding to the first card slot is formed on the fixing plate.

[0011] Preferably, the positioning member includes a sleeve block connected to the vertical rod by a thread, the sleeve block is provided with a plurality of openings distributed at circumferential angles, an end block is fixed to the top end of the vertical rod, and a circular hole is provided on the end block, a through rod passes through the circular hole, and the through rod extends into the opening, and a top block abutting against the end block is fixed to the top end of the through rod.

[0012] Preferably, when the block is inserted into the first slot, the clamping block clamps the valve body and fixes it; when the block is inserted into the second slot, the clamping block is away from the valve body, and at this time the valve body can be removed and the valve without the O-ring installed can be replaced; when the block is engaged with the first slot, the O-ring supplied by the O-ring feeding mechanism can be installed at the corresponding position on the valve body through the pneumatic clamping and transferring assembly with the cooperation of the pre-installed module.

[0013] Preferably, an elastic rubber gasket is provided on the portion where the card block engages with the first card slot or the second card slot.

[0014] Preferably, after the position of the end block is controlled, the sleeve block is rotated so that the sleeve block moves down along the vertical rod during rotation, and the vertical rod moves up relative to the sleeve block. Due to the elastic force of the first spring, the fixed plate is pushed down, thereby causing the vertical rod to move down, so that the bottom of the sleeve block always keeps in contact with the bend at the bottom of the L-shaped bent plate; as the sleeve block continues to rotate, the vertical rod gradually moves up until the fixed plate on the vertical rod abuts against the bottom of the upper bend of the L-shaped bent plate. At this time, the clamping block at the bottom of the fixed plate is away from the corresponding hole opened on the L-shaped bent plate, so the clamping block at this time cannot penetrate the corresponding hole and engage with the first clamping slot or the second clamping slot opened on the fixed plate.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In the present application, the push rod pushes the clamping block to move under the elastic force of spring 2 until the clamping block moves to a predetermined position at the pre-installed module, thereby clamping and fixing the valve body. At this time, the clamping block is also aligned with the clamping slot 1. Under the elastic force of spring 1, the clamping block can be moved downward until the clamping block is engaged with the clamping slot 1. At this time, the position of the clamping block is fixed, and the clamping block can stably clamp and fix the valve body.

[0016] 2. After the through rod passes through the round hole and extends into the opening, the sleeve block and the vertical rod cannot rotate relative to each other, so the position of the sleeve ring on the vertical rod cannot be changed. Therefore, the through rod can control whether the sleeve ring plays its due role, and the vertical rod at this time cannot be moved in the vertical direction by force. The clamping block is only affected by the elastic force of spring 2, and cooperates with the corresponding structure on the pre-installed module to fix the valve body, so that the valve body is convenient for the O-ring provided by the O-ring feeding mechanism to be connected with the valve body fixed at the pre-installed module under the cooperation of the pneumatic clamping and transferring assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It shows a schematic diagram of the overall structure of an assembly platform provided according to an embodiment of the present invention; Figure 2 A partial structural schematic diagram of a pre-installed module provided in an embodiment of the present invention is shown; Figure 3 A schematic diagram of the structure of a push rod according to an embodiment of the present invention is shown; Figure 4 It shows a schematic diagram of the structure of a clamping block according to an embodiment of the present invention; Figure 5 It shows a schematic structural diagram of a clamping block and a push rod connected according to an embodiment of the present invention; Legend: 1. Assembly table; 2. O-ring feeding mechanism; 3. Pneumatic clamping and transferring assembly; 4. Pre-installed module; 5. Fixed plate; 6. Clamping block; 7. Through hole; 8. Horizontal hole; 9. Slot 1; 10. Slot 2; 11. Screw sleeve; 12. Sliding sleeve; 13. Abutment block; 14. L-shaped bent plate; 15. Vertical hole; 16. Corresponding hole; 17. Vertical rod; 18. Fixed plate; 19. Clamping block; 20. Spring 1; 21. End block; 22. Round hole; 23. Sleeve block; 24. Opening hole; 25. Through rod; 26. Ejector block; 27. Push rod; 28. Spring 2. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 5 , the present invention provides a technical solution: A high-pressure pump oil inlet valve assembly assembly workbench includes an assembly platform body 1, on which an O-ring feeding mechanism 2, a pneumatic clamping and transferring assembly 3 and a pre-installed module 4 are provided, which is a direct reference to the prior art and is not described in detail here. A fixed plate 5 is provided at the pre-installed module 4, and a clamping block 6 is slidably connected to the fixed plate 5, a transverse hole 8 is provided on the fixed plate 5, and a push rod 27 is slidably connected at the transverse hole 8, and the push rod 27 passes through the through hole 7 provided on the clamping block 6, and the end of the push rod 27 is also connected to a screw sleeve 11 by threading, and a spring 28 is sleeved on the push rod 27, and a limiting member for limiting the push rod 27 is provided on the fixed plate 5. The push rod 27 can cause the position of the clamping block 6 to be changed during movement, so that the clamping block 6 can fix the valve body, or release the fixation of the valve body.

[0020] Specifically, Figure 1 As shown, the limiting member includes a sliding sleeve 12 slidably connected to the push rod 27, an L-shaped bent plate 14 is fixed to the sliding sleeve 12, a vertical hole 15 is provided at the bend of the L-shaped bent plate 14, a corresponding hole 16 is also provided on the L-shaped bent plate 14, a vertical rod 17 is slidably connected to the vertical hole 15, and a fixing plate 18 is fixed to the vertical rod 17, a clamping block 19 is fixed to the bottom of the fixing plate 18, the clamping block 19 penetrates the corresponding hole 16 and is engaged with a clamping slot 9 provided on the fixing plate 5, a spring 20 is sleeved on the vertical rod 17, and a positioning member for positioning the position of the vertical rod 17 is provided on the L-shaped bent plate 14. A stopper 13 is fixed to one end of the sliding sleeve 12, and the stopper 13 abuts against one end of a spring 28, and the other end of the spring 28 abuts against the bend of the fixing plate 5.

[0021] Specifically, Figure 3 As shown, the fixing plate 5 is provided with a second card slot 10 corresponding to the first card slot 9. When the card block 19 is inserted into the first card slot 9, the clamp block 6 clamps and fixes the valve body. When the card block 19 is inserted into the second card slot 10, the clamp block 6 is away from the valve body. Therefore, when the card block 19 is engaged with the first card slot 9 or the second card slot 10, the clamp block 6 at different positions can be restricted to prevent the spring second 28 from pushing the clamp block 6 to move. An elastic rubber gasket is provided on the part where the card block 19 is engaged with the first card slot 9 or the second card slot 10. Therefore, when the card block 19 is engaged with the first card slot 9 or the second card slot 10, wear can be avoided, so the card block 19 can be used for a longer time without worrying about the life problem.

[0022] When the clamping block 19 is engaged with the clamping groove 10, the valve body loses the restriction of the clamping block 6, and the staff can remove the valve body and replace the valve without the O-ring installed; when the clamping block 19 is engaged with the clamping groove 1 9, the O-ring supplied by the O-ring feeding mechanism 2 can be installed at the corresponding position on the valve body through the pneumatic clamping and transferring assembly 3 with the cooperation of the pre-installed module 4.

[0023] Specifically, Figure 3 As shown, the positioning member includes a sleeve block 23 connected to the vertical rod 17 by a thread, and a plurality of openings 24 with circumferential and equiangular distribution are provided on the sleeve block 23. An end block 21 is fixed to the top of the vertical rod 17, and a circular hole 22 is provided on the end block 21. A through rod 25 passes through the circular hole 22, and the through rod 25 extends into the opening 24. A top block 26 abutting against the end block 21 is fixed to the top of the through rod 25. After the through rod 25 passes through the circular hole 22 and extends into the opening 24, the sleeve block 23 and the vertical rod 17 cannot rotate relative to each other, so the position of the sleeve block 23 on the vertical rod 17 cannot be changed. By rotating the sleeve block 23, the position of the sleeve block 23 on the vertical rod 17 can be changed, so that the block 19 at the bottom of the vertical rod 17 can move a certain distance in the vertical direction, that is, the sleeve block 23 can prevent the block 19 from extending into the slot 1 9 or the slot 2 10 under the elastic force of the spring 1 20, and the operator can control it according to actual needs.

[0024] When the position of the end block 21 is kept constant, the sleeve block 23 is rotated so that the sleeve block 23 moves down along the vertical rod 17 during the rotation, and the vertical rod 17 moves up relative to the sleeve block 23. When the sleeve block 23 is kept in contact with the L-shaped curved plate 14, the vertical rod 17 moves up in the vertical direction. With the continuous rotation of the sleeve block 23, the vertical rod 17 gradually moves up until the fixed disk 18 on the vertical rod 17 is in contact with the bottom of the upper end bend of the L-shaped curved plate 14. At this time, the clamping block 19 at the bottom of the fixed disk 18 is far away from the corresponding hole 16 opened on the L-shaped curved plate 14, so the clamping block 19 at this time cannot penetrate the corresponding hole 16 and engage with the clamping groove 1 9 or the clamping groove 2 10 opened on the fixed plate 5. Therefore, the penetration rod 25 at this time can penetrate the circular hole 22 opened on the end block 21 and extend into the opening 24 opened on the sleeve block 23. Therefore, the sleeve block 23 at this time cannot be subjected to force to rotate relative to the vertical rod 17. The bottom of the through rod 25 is fixed to the inner bottom wall of the opening 24 by magnetic attraction, so after the through rod 25 passes through the circular hole 22 and extends into the opening 24, the through rod 25 can maintain its position and will not easily separate from the circular hole 22 and the opening 24.

[0025] To sum up, the valve body provided in this embodiment is installed at the corresponding position of the pre-installed module 4, and then the vertical rod 17 can be lifted upward, so that the block 19 at the bottom of the vertical rod 17 is disengaged from the slot 10, and under the elastic force of the spring 28, the push rod 27 pushes the clamping block 6 to move until the clamping block 6 moves to the predetermined position of the pre-installed module 4, thereby clamping the valve body.

[0026] At this time, the clamping block 19 is also aligned with the clamping slot 9, and under the elastic force of the spring 20, the clamping block 19 can be moved down until the clamping block 19 is engaged with the clamping slot 9. At this time, the position of the clamping block 6 is fixed, and the clamping block 6 can stably clamp and fix the valve body, making it easier for the O-ring feeding mechanism 2 to connect the O-ring to the valve body under the cooperation of the pneumatic clamping and transferring assembly 3.

[0027] When the sleeve block 23 is not needed, the position of the end block 21 can be controlled, so that the sleeve block 23 can be rotated, so that the sleeve block 23 moves down along the vertical rod 17 during the rotation. Due to the elastic force of the spring 1 20, the fixed plate 18 is pushed down, thereby causing the vertical rod 17 to move down, so that the bottom of the sleeve block 23 always keeps in contact with the bend at the bottom of the L-shaped bent plate 14. As the sleeve block 23 continues to rotate, the vertical rod 17 will gradually move up until the fixed plate 18 on the vertical rod 17 abuts against the bottom of the upper bend of the L-shaped bent plate 14. At this time, the clamping block 19 at the bottom of the fixed plate 18 is away from the corresponding hole 16 opened on the L-shaped bent plate 14, so the clamping block 19 at this time cannot penetrate the corresponding hole 16 and engage with the clamping slot 1 9 or the clamping slot 2 10 opened on the fixed plate 5. At this time, the vertical rod 17 cannot be moved in the vertical direction under the force. The clamping block 6 is only affected by the elastic force of the spring 28, and cooperates with the corresponding structure on the pre-installed module 4 to fix the valve body, so that the O-ring provided by the O-ring feeding mechanism 2 and the valve body fixed at the pre-installed module 4 can be connected as a whole with the cooperation of the pneumatic clamping and transferring assembly 3.

[0028] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-pressure pump oil inlet valve assembly assembly workbench, comprising an assembly table body (1), characterized in that: The assembly platform (1) is provided with an O-ring feeding mechanism (2), a pneumatic clamping and transferring component (3) and a pre-installation module (4); the pre-installation module (4) is provided with a fixed plate (5), and a clamping block (6) is slidably connected to the fixed plate (5); a transverse hole (8) is provided on the fixed plate (5), and a push rod (27) is slidably connected to the transverse hole (8); the push rod (27) passes through a through hole (7) provided on the clamping block (6); the end of the push rod (27) is also connected to a screw sleeve (11) via a thread; a spring 2 (28) is sleeved on the push rod (27); and a limiting member for limiting the push rod (27) is provided on the fixed plate (5).

2. The high-pressure pump oil inlet valve assembly assembly workbench according to claim 1, characterized in that: The limiting member comprises a sliding sleeve (12) slidably connected to the push rod (27), an L-shaped bent plate (14) being fixed to the sliding sleeve (12), a vertical hole (15) being provided at the bending portion of the L-shaped bent plate (14), a corresponding hole (16) being provided on the L-shaped bent plate (14), a vertical rod (17) being slidably connected to the vertical hole (15), a fixing plate (18) being fixed to the vertical rod (17), a clamping block (19) being fixed to the bottom of the fixing plate (18), the clamping block (19) passing through the corresponding hole (16) and being clamped with a clamping groove (9) provided on the fixing plate (5), a spring (20) being sleeved on the vertical rod (17), and a positioning member for positioning the position of the vertical rod (17) being provided on the L-shaped bent plate (14).

3. The high-pressure pump oil inlet valve assembly assembly workbench according to claim 2, characterized in that: A stop block (13) is fixed to one end of the sliding sleeve (12), and the stop block (13) abuts against one end of the second spring (28), while the other end of the second spring (28) abuts against the bent portion of the fixing plate (5).

4. The high-pressure pump oil inlet valve assembly assembly workbench according to claim 2, characterized in that: The fixing plate (5) is provided with a second clamping slot (10) corresponding to the first clamping slot (9).

5. The high-pressure pump oil inlet valve assembly assembly workbench according to claim 2, characterized in that: The positioning member comprises a sleeve block (23) connected to the vertical rod (17) by means of a thread, the sleeve block (23) being provided with a plurality of openings (24) distributed at equal angles around the circumference, an end block (21) being fixed at the top end of the vertical rod (17), a circular hole (22) being provided at the end block (21), a through rod (25) passing through the circular hole (22), the through rod (25) extending into the opening (24), and a top block (26) abutting against the end block (21) being fixed at the top end of the through rod (25).

6. The high-pressure pump oil inlet valve assembly assembly workbench according to claim 4, characterized in that: When the clamping block (19) extends into the first clamping groove (9), the clamping block (6) clamps and fixes the valve body; when the clamping block (19) extends into the second clamping groove (10), the clamping block (6) moves away from the valve body, and at this time the valve body can be removed and the valve without the O-ring installed can be replaced; when the clamping block (19) is engaged with the first clamping groove (9), the O-ring supplied by the O-ring supply mechanism (2) can be installed at a corresponding position on the valve body through the pneumatic clamping and transferring assembly (3) with the cooperation of the pre-installation module (4).

7. The high-pressure pump oil inlet valve assembly assembly workbench according to claim 6, characterized in that: An elastic rubber gasket is provided on the portion where the clamping block (19) engages with the first clamping slot (9) or the second clamping slot (10).

8. The high-pressure pump oil inlet valve assembly assembly workbench according to claim 6, characterized in that: After the position of the end block (21) is controlled, the sleeve block (23) is rotated so that the sleeve block (23) moves downward along the vertical rod (17) during the rotation, and the vertical rod (17) moves upward relative to the sleeve block (23). Due to the elastic force of the spring 1 (20), the fixed plate (18) is pushed downward, thereby causing the vertical rod (17) to move downward, so that the bottom of the sleeve block (23) always remains in contact with the bent portion of the bottom of the L-shaped bent plate (14); as the sleeve block (23) moves upward, the vertical rod (17) moves upward relative to the sleeve block (23). 23), the vertical rod (17) gradually moves upward until the fixed plate (18) on the vertical rod (17) abuts against the bottom of the upper bend of the L-shaped bent plate (14), and at this time, the clamping block (19) at the bottom of the fixed plate (18) is away from the corresponding hole (16) provided on the L-shaped bent plate (14), so that the clamping block (19) at this time cannot penetrate the corresponding hole (16) and engage with the first clamping groove (9) or the second clamping groove (10) provided on the fixed plate (5).

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