Grinding device for machining fuel pump shaft

Abstract

The utility model provides a fuel pump shaft machining and polishing device which comprises a box body, a fixing cavity at the bottom and a polishing cavity above the fixing cavity are arranged in the box body, a polishing mechanism is installed on the top of the polishing cavity, and a first fixing mechanism and a second fixing mechanism are arranged on the left side and the right side of the bottom in the polishing cavity respectively. The first fixing mechanism comprises a first limiting plate vertically arranged at the bottom of the grinding cavity and capable of horizontally sliding and a limiting cavity formed in the left side of the first limiting plate. The second fixing mechanism comprises a second limiting plate vertically arranged at the bottom of the grinding cavity, a rotating disc rotationally connected to the right side face of the second limiting plate, a pair of pump shaft clamping pieces oppositely arranged on the side wall of the rotating disc and a second motor, and an annular groove matched with the left end face of the rotating disc is formed in the right side face of the second limiting plate. According to the machining and polishing device, all-directional polishing of the shaft is achieved, and polishing stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel pump shaft processing, in particular to a fuel pump shaft processing and grinding device. Background Art

[0002] A fuel pump, a term used in the automotive parts industry, is a fundamental component of the fuel injection system in electronic fuel injection vehicles. Located inside the vehicle's fuel tank, the fuel pump operates during startup and engine running. Its function is to draw fuel from the tank, pressurize it, and deliver it to the fuel supply line. It works with the fuel pressure regulator to establish a specific fuel pressure. The fuel pump consists of an electric motor, a pressure limiter, and a check valve. The electric motor actually operates in the fuel within the pump housing, as there's nothing inside that can ignite. The fuel lubricates and cools the motor. A check valve is installed at the fuel outlet. The pressure limiter is located on the pressure side of the pump housing, with a channel leading to the fuel inlet.

[0003] At present, during the processing and grinding of the fuel pump shaft, manual operation is required to rotate the shaft to achieve grinding, which reduces the grinding efficiency. In particular, when the shaft needs to be ground in all directions, the grinding efficiency is even lower; and the clamping of the shaft to be processed is not stable enough. Therefore, it is necessary to propose a fuel pump shaft processing and grinding device to solve the above-mentioned problems. Utility Model Content

[0004] In response to the above problems, the utility model provides a fuel pump shaft processing and grinding device, which has the function of limiting and fixing the grinding shaft to improve the stability of grinding, and at the same time realizes all-round grinding of the shaft, avoiding the need for manual rotation and improving the processing and grinding efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fuel pump shaft processing and grinding device, comprising a box body, wherein the box body is divided into a fixing chamber at the bottom and a grinding chamber above the fixing chamber, a grinding mechanism is installed on the top of the grinding chamber, and a first fixing mechanism and a second fixing mechanism are respectively provided on the left and right sides of the bottom of the grinding chamber for fixing the two ends of the pump shaft to be ground; wherein,

[0006] The first fixing mechanism includes a first limiting plate vertically arranged at the bottom of the grinding chamber and capable of sliding horizontally along the length direction of the pump shaft, and a limiting chamber arranged on the left side of the first limiting plate;

[0007] The second fixing mechanism includes a second limit plate vertically arranged at the bottom of the grinding chamber, a rotating disk rotatably connected to the right side of the second limit plate, a pair of pump shaft clamping members relatively arranged on the side wall of the rotating disk, and a second motor that drives the rotating disk to rotate; an annular groove matching the left end face of the rotating disk is provided on the right side face of the second limit plate, and the left end face of the rotating disk is embedded in the annular groove; a limiting hole for the pump shaft to pass through is provided in the middle of the first limit plate and the second limit plate.

[0008] When using the above-mentioned fuel pump shaft processing and polishing device, one end of the pump shaft is extended through the second limiting hole into the rotating disk and abutted against the inner wall of the rotating disk, and the pump shaft is fixed by a pair of pump shaft clamps; at the same time, according to the length of the pump shaft, the horizontal position of the first limiting plate is adjusted to make the other end of the pump shaft pass through the first limiting hole and insert into the limiting cavity, and abut against the inner wall of the limiting cavity. By locking the shaft and abutting against the limiting cavity and the inner wall of the rotating disk, the stability of the polishing is improved; then the second motor is started to drive the rotating disk to rotate along the annular groove, thereby driving the pump shaft to rotate; and the polishing mechanism is started to rotationally polish the pump shaft.

[0009] The present invention is further configured such that the first limit plate moves horizontally through an adjusting device, and the adjusting device includes a rotatable horizontal screw rod provided in the fixed cavity, and a sliding sleeve provided on the outer wall of the horizontal screw rod and threadedly connected to the horizontal screw rod, and the bottom end of the first limit plate extends into the fixed cavity and is connected to the top of the sliding sleeve.

[0010] The present invention is further configured such that the adjusting device further comprises a first motor mounted on the outer side wall of the fixed cavity, and an output end of the first motor is connected to the horizontal screw rod.

[0011] The present invention is further configured such that the bottom end surface of the sliding sleeve is placed on the bottom surface of the fixed cavity.

[0012] The utility model is further configured such that the pump shaft clamping member includes a threaded rod vertically passing through the side wall of the rotating disk, a corresponding threaded through hole is opened on the side wall of the rotating disk, and a detachable clamping plate is installed on the inner end of the threaded rod screwed into the rotating disk.

[0013] The utility model is further configured such that the grinding mechanism includes a cylinder arranged on the top surface of the outer side of the grinding chamber and a grinding roller arranged on the top of the inner side of the grinding chamber, the output end of the cylinder extends into the grinding chamber and is provided with a mounting plate, a third motor is installed at the bottom end of the mounting plate, and the output end of the third motor is connected to the grinding roller.

[0014] The utility model is further configured as follows: a movable frame is provided above the polishing chamber, and the movable frame includes a horizontal top plate and a pair of support plates vertically arranged on both sides of the horizontal top plate; the top of the cylinder is installed on the horizontal top plate, and the top surface of the polishing chamber is provided with a movable groove for the cylinder output shaft to move horizontally along the length direction of the pump shaft, and a pair of support plate slide grooves are provided on the front and rear sides of the movable groove and parallel to the movable groove, and the bottom ends of a pair of support plates are respectively inserted into a pair of support plate slide grooves and are slidably connected to the support plate slide grooves.

[0015] The present invention is further configured such that an electric guide rail is installed in the support plate slide groove, and a pair of the support plates are respectively inserted into a pair of the support plate slide grooves and connected to the electric guide rail.

[0016] The present invention is further configured such that an elastic pad is installed on the inner side wall of the limiting cavity; and a rubber pad is installed on the side of the pump shaft clamping piece that clamps the pump shaft to increase the friction between the clamping plate and the shaft.

[0017] The present invention is further configured such that a controller is installed on the box body, and the first fixing mechanism, the second fixing mechanism, and the grinding mechanism are all electrically connected to the controller.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The present invention inserts the shaft into the first limit plate and the second limit plate, and abuts against the inner wall of the limit cavity and the rotating disk, thereby limiting and fixing the polished shaft, thereby improving the stability of polishing; (2) The polishing device of the present invention drives the shaft to rotate through the rotating disk, and is combined with the adjustment device at the bottom and the movable frame at the top, thereby realizing all-round polishing of the shaft, avoiding the need for manual rotation and position adjustment, and improving the processing and polishing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the overall structural diagram of the fuel pump shaft processing and grinding device described in the utility model;

[0020] Figure 2 This is an overall cross-sectional structural diagram of the fuel pump shaft processing and grinding device described in the present utility model;

[0021] Figure 3 This is a right side structural diagram of the second limiting plate of the present utility model.

[0022] Among them, 1. fixed cavity, 2. grinding cavity, 210. movable groove, 220. support plate slide, 3. grinding mechanism, 310. cylinder, 320. grinding roller, 330. mounting plate, 340. third motor; 4. first fixing mechanism, 410. first limiting plate, 411. first limiting hole, 420. limiting cavity; 5. second fixing mechanism, 510. second limiting plate, 511. annular groove, 512. second limiting hole; 520. rotating disk, 530. pump shaft clamping member, 531. threaded rod, 532. clamping plate, 540. second motor; 6. adjusting device, 610. horizontal screw, 620. sliding sleeve, 630. first motor, 7. moving frame, 8. controller. DETAILED DESCRIPTION

[0023] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0025] See Figures 1 to 3 The utility model provides a fuel pump shaft processing and grinding device, including a box body, wherein the box body is divided into a fixing chamber 1 at the bottom and a grinding chamber 2 above the fixing chamber 1, a grinding mechanism 3 for grinding the pump shaft is installed on the top of the grinding chamber 2, and a first fixing mechanism 4 and a second fixing mechanism 5 for fixing the two ends of the pump shaft are respectively provided on the left and right sides of the bottom of the grinding chamber 2; wherein,

[0026] The first fixing mechanism 4 includes a first limiting plate 410 vertically arranged at the bottom of the grinding chamber 2 and capable of sliding horizontally along the length direction of the pump shaft, and a limiting chamber 420 arranged on the left side of the first limiting plate 410 for inserting the pump shaft. The bottom surface of the grinding chamber 2 and the top surface of the fixing chamber 1 are provided with a through groove (not shown in the figure) for the horizontal sliding of the first limiting plate 410;

[0027] The second fixing mechanism 5 includes a second limiting plate 510 vertically arranged at the bottom of the grinding chamber 2 and arranged opposite to the first limiting plate 410, a rotating disk 520 rotatably connected to the right side of the second limiting plate 510, a pair of pump shaft clamping members 530 oppositely arranged on the side wall of the rotating disk 520, and a second motor 540 for driving the rotating disk 520 to rotate; an annular groove 511 is formed on the right side of the second limiting plate 510 and matches the left end face of the rotating disk 520, and the left end face of the rotating disk 520 is embedded in the annular groove 511;

[0028] A first limiting hole 411 and a second limiting hole 512 are respectively formed in the middle of the first limiting plate 410 and the second limiting plate 510 for inserting the two ends of the pump shaft respectively.

[0029] Specifically, in this embodiment, the box body is divided into an upper grinding chamber 2 and a lower fixing chamber 1 by a horizontal partition plate provided at the bottom, and the through groove is provided on the horizontal partition plate.

[0030] Specifically, in this embodiment, the limiting cavity 420 is a cavity open on the right side, the left end of the limiting cavity 420 is fixed on the left side surface of the first limiting plate 410 outside the limiting hole 411, and the inner wall of the limiting cavity 420 is installed with an elastic pad; the rotating disk 520 is a cylindrical structure open on the left side, and the left open end of the rotating disk 520 is slidingly connected to the second limiting plate 510. Under the drive of the second motor 540, the rotating disk 520 rotates around the horizontal center axis of the second limiting plate 510.

[0031] When using the above-mentioned fuel pump shaft processing and polishing device, one end of the pump shaft is extended through the second limiting hole 512 into the rotating disk 520 and abutted against the inner wall of the rotating disk 520, and the pump shaft is fixed by a pair of pump shaft clamps 530; at the same time, according to the length of the pump shaft, the horizontal position of the first limiting plate 410 is adjusted so that the other end of the pump shaft passes through the first limiting hole 411 and is inserted into the limiting cavity 420, and abuts against the inner wall of the limiting cavity 420; start the second motor 540 to drive the rotating disk 520 to rotate along the annular groove 511, thereby driving the pump shaft to rotate; start the polishing mechanism 3 to rotationally polish the pump shaft.

[0032] To further optimize the above technical solution, in an embodiment of the present utility model, the first limit plate 410 is horizontally moved by an adjustment device 6. The adjustment device 6 includes a rotatable horizontal screw 610 disposed within the fixed cavity 1, and a sleeve 620 sleeved on the outer wall of the horizontal screw 610 and threadedly connected to the horizontal screw 610. The horizontal screw 610 is arranged along the length of the shaft to be polished, and the bottom end of the first limit plate 410 extends into the fixed cavity 1 and connects to the top of the sleeve 620. During use, the position of the first limit plate 410 is adjusted by rotating the horizontal screw 610 to match pump shafts of different sizes, thereby expanding the scope of application.

[0033] Specifically, in one embodiment, the horizontal screw 610 is driven to rotate by a first motor 630 provided on the outer wall of the fixed cavity 1 , one end of the horizontal screw 610 is connected to the fixed cavity 1 , and the other end is connected to the output end of the first motor 630 .

[0034] In order to make the first limiting plate 410 and the sliding sleeve 620 slide more stably, in this embodiment, the bottom surface of the sliding sleeve 620 is placed on the bottom surface of the fixing cavity 1 and is slidably connected to the bottom surface of the fixing cavity 1.

[0035] To further optimize the above technical solution, in this embodiment of the present invention, the pump shaft clamp 530 includes a threaded rod 531 extending vertically through the side wall of the rotating disk 520. The side wall of the rotating disk 520 is provided with a corresponding threaded through-hole. The threaded rod 531 is screwed into the rotating disk 520 through the threaded through-hole and has a detachable clamping plate 532 mounted on its inner end. During use, one end of the pump shaft is inserted into the rotating disk 520 and abutted against the inner wall of the rotating disk 520. The threaded rod 531 is then rotated, causing the two clamping plates 532 to approach each other and clamp the outer wall of the shaft in place.

[0036] In order to increase the friction between the clamping plate 532 and the shaft, in a specific embodiment, a rubber pad is installed on one side of the clamping plate 532 used to clamp the pump shaft, so that the clamping plate can clamp the pump shaft more tightly and rotate with the second motor 540.

[0037] To further optimize the above technical solution, in an embodiment of the present utility model, the grinding mechanism 3 includes a cylinder 310 provided on the outer top surface of the grinding chamber 2 and a grinding roller 320 provided on the inner top of the grinding chamber 2. The output end of the cylinder 310 extends into the grinding chamber 2 and is provided with a mounting plate 330. A third motor 340 is mounted at the bottom end of the mounting plate 330, and the output end of the third motor 340 is connected to the grinding roller 320. The mounting plate 330 is pushed and pulled by the cylinder to adjust the vertical position of the grinding roller 320, thereby adapting the grinding roller 320 to the processing of shafts of different diameters.

[0038] In order to enable the grinding mechanism 3 to grind the pump shaft in all directions, the above technical solution is further optimized. In the embodiment of the utility model, a movable frame 7 is further provided above the grinding chamber 2. The movable frame 7 includes a horizontal top plate and a pair of support plates vertically arranged on both sides of the horizontal top plate. The top of the cylinder 310 is mounted on the horizontal top plate. The top surface of the grinding chamber 2 is provided with a movable groove 210 for the output end of the cylinder 310 to move horizontally along the length direction of the pump shaft, and a pair of support plate slides 220 are provided on the front and rear sides of the movable groove 210 and parallel to the movable groove 210. The bottom ends of the pair of support plates are respectively inserted into the pair of support plate slides 220 and are slidably connected to the support plate slides 220. This arrangement adjusts the horizontal position of the grinding roller 320 by moving the position of the movable frame 7, thereby achieving grinding of different positions along the length direction of the pump shaft.

[0039] Specifically, in one embodiment, an electric guide rail is further installed in the support plate slide groove 220, and a pair of the support plates are respectively inserted into a pair of the support plate slide grooves 220 and connected to the electric guide rail.

[0040] To further optimize the above technical solution, in an embodiment of the present utility model, a controller 8 is further installed on the box body, and the first fixing mechanism 4 , the second fixing mechanism 5 , and the grinding mechanism 3 are all electrically connected to the controller 8 .

[0041] Specifically, the first motor 630 , the second motor 540 , the electric guide rail, the third motor 340 , and the cylinder 310 are all electrically connected to the controller 8 .

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fuel pump shaft processing and grinding device, comprising a box body, wherein the box body is divided into a fixed cavity at the bottom and a grinding cavity above the fixed cavity, and a grinding mechanism is installed on the top of the grinding cavity, characterized in that: The left and right sides of the bottom of the grinding chamber are respectively provided with a first fixing mechanism and a second fixing mechanism for fixing the two ends of the pump shaft to be ground; wherein, The first fixing mechanism comprises a first limiting plate vertically arranged at the bottom of the grinding chamber and capable of sliding horizontally along the length direction of the pump shaft, and a limiting chamber arranged on the left side of the first limiting plate; The second fixing mechanism includes a second limit plate vertically arranged at the bottom of the grinding chamber, a rotating disk rotatably connected to the right side of the second limit plate, a pair of pump shaft clamping parts relatively arranged on the side wall of the rotating disk, and a second motor that drives the rotating disk to rotate; an annular groove matching the left end face of the rotating disk is provided on the right side face of the second limit plate, and the left end face of the rotating disk is embedded in the annular groove; a limit hole for the pump shaft to pass through is provided in the middle part of the first limit plate and the second limit plate.

2. A fuel pump shaft processing and grinding device according to claim 1, characterized in that: The first limit plate is moved horizontally by an adjusting device, which includes a rotatable horizontal screw rod disposed in the fixed cavity, and a sliding sleeve disposed on the outer wall of the horizontal screw rod and threadedly connected to the horizontal screw rod. The bottom end of the first limit plate extends into the fixed cavity and is connected to the top of the sliding sleeve.

3. A fuel pump shaft processing and grinding device according to claim 2, characterized in that: The adjusting device further comprises a first motor mounted on the outer side wall of the fixed cavity, wherein an output end of the first motor is connected to the horizontal screw rod.

4. A fuel pump shaft processing and grinding device according to claim 2, characterized in that: The bottom end surface of the sliding sleeve is placed on the bottom surface of the fixing cavity.

5. The fuel pump shaft processing and grinding device according to claim 1, characterized in that: The pump shaft clamping member comprises a threaded rod vertically passing through the side wall of the rotating disk, a corresponding threaded through hole is opened on the side wall of the rotating disk, and a detachable clamping plate is installed on the inner end of the threaded rod screwed into the rotating disk.

6. A fuel pump shaft processing and grinding device according to claim 1, characterized in that: The grinding mechanism includes a cylinder arranged on the top surface of the outer side of the grinding chamber and a grinding roller arranged on the top of the inner side of the grinding chamber. The output end of the cylinder extends into the grinding chamber and is provided with a mounting plate. A third motor is installed at the bottom end of the mounting plate. The output end of the third motor is connected to the grinding roller.

7. A fuel pump shaft processing and grinding device according to claim 6, characterized in that: A movable frame is also provided above the polishing chamber, and the movable frame includes a horizontal top plate and a pair of support plates vertically arranged on both sides of the horizontal top plate; the top of the cylinder is installed on the horizontal top plate, and the top surface of the polishing chamber is provided with a movable groove for the cylinder output end to move horizontally along the length direction of the pump shaft, and a pair of support plate slide grooves are provided on the front and rear sides of the movable groove and parallel to the movable groove, and the bottom ends of a pair of support plates are respectively inserted into a pair of support plate slide grooves and are slidably connected with the support plate slide grooves.

8. A fuel pump shaft processing and grinding device according to claim 7, characterized in that: An electric guide rail is installed in the support plate slide groove, and a pair of support plates are respectively inserted into a pair of support plate slide grooves and connected to the electric guide rail.

9. The fuel pump shaft processing and grinding device according to claim 1, characterized in that: An elastic pad is installed on the inner side wall of the limiting cavity, and a rubber pad is installed on the side of the pump shaft clamping member that clamps the pump shaft.

10. The fuel pump shaft processing and grinding device according to claim 1, characterized in that: A controller is installed on the box body, and the first fixing mechanism, the second fixing mechanism and the grinding mechanism are all electrically connected to the controller.

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