A special tool for processing center of fuel injector body

Abstract

This utility model relates to the field of fuel injector processing technology, specifically disclosing a special tooling for a fuel injector body machining center. It includes a U-shaped base with two clamping mechanisms inside via an adjustment mechanism. Each clamping mechanism includes a mounting base with a through hole in the center, and a cavity inside the mounting base. A hexagonal groove is formed on the bottom surface of the cavity, and six triangular plates are arranged inside the cavity. A limiting block is fixedly connected to the lower end of each triangular plate and slidably connected to the hexagonal groove. A vertical shaft is fixedly connected to the upper end of each triangular plate. A rotating ring located above the triangular plates is rotatably connected inside the cavity. Multiple slots are formed through the outer wall of the rotating ring. Through the six synchronously radially adjustable triangular plate mechanism, adaptive clamping of fuel injector bodies of different diameters is achieved. A bidirectional linkage locking mechanism ensures stable clamping, effectively solving the clamping and positioning problem during the machining of stepped fuel injector bodies.

Description

Technical Field

[0001] This utility model relates to the field of fuel injector processing technology, and specifically discloses a special tooling for fuel injector body machining center. Background Technology

[0002] The fuel injector is a crucial component of the diesel engine's fuel injection system, significantly impacting the engine's performance and emissions. Specialized tooling is required during its machining.

[0003] Chinese patent CN218225626U discloses a special tooling for a fuel injector body machining center, including a base and a frame. A support is mounted on the upper end of the base, and a fixed seat is connected to the upper end of the support. The frame is movably fitted inside the fixed seat. A first vise is connected to the upper end of the fixed seat, and a mounting plate is connected to one end of the frame. A second vise is connected to one side of the upper end of the mounting plate. Clamps are connected to one side of each of the first and second vises. This invention allows the fuel injector body to be placed on a support plate to adjust the support height. The support mechanism is easy to adjust and provides stable support, which is beneficial for machining operations. Through a driving mechanism, the mounting plate moves the second vise closer to the fuel injector body, allowing the clamps on both sides to clamp and fix the fuel injector body, resulting in good stability during clamping. The adjustable clamps can meet the needs of fixing different fuel injectors, thus improving the performance of this tooling.

[0004] The aforementioned document discloses a special tooling for a fuel injector body machining center that uses two vises with arc-shaped grooves to fix the fuel injector. The specifications of the arc-shaped grooves of the vises are fixed, which makes it impossible to use fuel injectors of different sizes. In addition, it only clamps the middle part of the fuel injector, and the clamping is not firm enough. Therefore, a special tooling for a fuel injector body machining center is needed to solve this problem. Utility Model Content

[0005] This utility model proposes a special tooling for a fuel injector body machining center. Through a mechanism of six radially adjustable triangular plates, it can achieve adaptive clamping of fuel injector bodies of different diameters. A two-way linkage locking mechanism is used to ensure stable clamping, effectively solving the clamping and positioning problem during the machining of stepped fuel injector bodies.

[0006] This utility model is implemented as follows: a special tooling for a fuel injector body machining center includes a U-shaped base. The U-shaped base has two clamping mechanisms inside via an adjustment mechanism. Each clamping mechanism includes a mounting base with a through hole in the center. The mounting base has a cavity inside, with a hexagonal groove on the bottom surface of the cavity. Six triangular plates are arranged inside the cavity. A limiting block that slides through the hexagonal groove is fixedly connected to the lower end of each triangular plate. A vertical shaft is fixedly connected to the upper end of each triangular plate. A rotating ring located above the triangular plates is rotatably connected inside the cavity. Multiple slots that slide through the outer wall of the rotating ring are slidably connected to the vertical shaft. A protruding ring extending above the mounting base is fixedly connected to the upper end of the rotating ring. A gear is fixedly connected to the outer wall of the protruding ring. A slide rail is fixedly connected to the upper end of the mounting base. A straight rack that meshes with the gear is slidably connected to the inner wall of the slide rail.

[0007] A support plate is fixedly connected to the lower end face of the mounting base located on the lower side.

[0008] As a preferred tooling for a machining center of an injector body according to this utility model, the inner wall of the U-shaped seat is fixedly connected to an ear plate, the outer wall of the ear plate is threaded through and connected to a second threaded rod, the front end of the second threaded rod is rotatably connected to a second hinge seat, the inner wall of the second hinge seat is rotatably connected to a connecting rod via a coupling, both ends of the connecting rod are sleeved with sleeves, the outer walls of the two sleeves are rotatably connected to a first hinge seat via a coupling, and the rear end faces of the two first hinge seats are respectively fixedly connected to two straight racks.

[0009] As a preferred tooling for a machining center of an injector body according to this utility model, the adjustment mechanism includes two sliding grooves that pass through the side wall of the U-shaped seat. The outer wall of the mounting seat is fixedly connected to two sliders that are slidably connected to the sliding grooves. The inner wall of one of the sliding grooves is rotatably connected to a first threaded rod. The two mounting seats are respectively threaded to the two ends of the first threaded rod through the sliders.

[0010] As a preferred tooling for a machining center of an injector body according to this utility model, a limit rod is fixedly connected to the inner wall of another of the slide grooves, and the two mounting seats are respectively slidably connected to the outer wall of the limit rod by sliders.

[0011] As a preferred tooling for a fuel injector body machining center according to this utility model, the threads at both ends of the outer wall of the first threaded rod are opposite in direction.

[0012] As a preferred tooling for a machining center of an injector body according to this utility model, both the outer walls of the first threaded rod and the second threaded rod are provided with handles.

[0013] The beneficial effects of this utility model are:

[0014] 1. Through the synchronous radial adjustment of six triangular plates, it can stably clamp injector bodies of different diameters, adapt to stepped or non-cylindrical contours, and ensure clamping accuracy and reliability.

[0015] 2. The linkage mechanism enables the phased action of the upper and lower clamping points, which can automatically adapt to the difference in diameter between the upper and lower ends of the injector, ensuring a uniform distribution of clamping force and preventing workpiece deformation or loosening. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is an overall structural diagram of a special tooling for a fuel injector body machining center according to the present invention.

[0018] Figure 2 This is a front sectional view of a special tooling for a fuel injector body machining center according to the present invention.

[0019] Figure 3 This is an exploded view of the clamping mechanism of this utility model.

[0020] The markings in the diagram are: 1. U-shaped seat; 2. Mounting seat; 3. Slide groove; 4. Slider; 5. First threaded rod; 6. Limiting rod; 7. Cavity; 8. Hexagonal groove; 9. Triangular plate; 10. Limiting block; 11. Vertical shaft; 12. Rotary ring; 13. Slot hole; 14. Convex ring; 15. Gear; 16. Slide rail; 17. Straight rack; 18. First hinge seat; 19. Sleeve; 20. Ear plate; 21. Second threaded rod; 22. Second hinge seat; 23. Connecting rod; 24. Support plate. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0022] Please see Figure 1-3A special tooling for a fuel injector body machining center includes a U-shaped base 1. The U-shaped base 1 has two clamping mechanisms inside through an adjustment mechanism. The clamping mechanism includes a mounting base 2 with a through hole in the center. The mounting base 2 has a cavity 7 inside. The bottom surface of the cavity 7 has a hexagonal groove 8. The cavity 7 has six triangular plates 9 inside. The lower end surface of the triangular plates 9 is fixedly connected to a limiting block 10 that is slidably connected to the hexagonal groove 8. The upper end surface of the triangular plates 9 is fixedly connected to a vertical shaft 11. The cavity 7 has a rotating ring 12 located above the triangular plates 9. The outer wall of the rotating ring 12 has multiple slots 13 that are slidably connected to the vertical shaft 11. The upper end surface of the rotating ring 12 is fixedly connected to a protruding ring 14 that extends to the top of the mounting base 2. The outer wall of the protruding ring 14 is fixedly connected to a gear 15. The upper end surface of the mounting base 2 is fixedly connected to a slide rail 16. The inner wall of the slide rail 16 is slidably connected to a straight rack 17 that meshes with the gear 15.

[0023] A support plate 24 is fixedly connected to the lower end face of the lower mounting base 2.

[0024] In this embodiment: the rack 17 slides backward along the slide rail 16, the rack 17 drives the gear 15 to rotate counterclockwise, and then drives the rotating ring 12 to rotate counterclockwise through the convex ring 14. The rotating ring 12 further drives multiple triangular plates 9 to move closer to each other along the hexagonal groove 8 through the slot 13 and the vertical shaft 11, clamping and fixing the injector. Conversely, sliding the rack 17 forward along the slide rail 16 can drive the multiple triangular plates 9 to move away from each other, releasing the injector. This utility model clamps and fixes the injector by bringing six triangular plates 9 closer to each other, which can be applied to injectors of different specifications and has strong practicality.

[0025] As a technical optimization of this utility model, the inner wall of the U-shaped seat 1 is fixedly connected with an ear plate 20, the outer wall of the ear plate 20 is threaded through and connected with a second threaded rod 21, the front end of the second threaded rod 21 is rotatably connected with a second hinge seat 22, the inner wall of the second hinge seat 22 is rotatably connected with a connecting rod 23 through a coupling shaft, both ends of the connecting rod 23 are sleeved with sleeves 19, the outer walls of the two sleeves 19 are rotatably connected with first hinge seats 18 through a coupling shaft, and the rear end faces of the two first hinge seats 18 are fixedly connected with two straight racks 17 respectively.

[0026] In this embodiment: Rotating the second threaded rod 21 causes the connecting rod 23 to move backward via the second hinge 22, which in turn causes the two sleeves 19 to move backward. The two sleeves 19 further cause the two racks 17 to move backward via the first hinge 18, which in turn causes the upper and lower triangular plates 9 to move closer to each other and clamp the upper and lower sides of the injector. When one side of the triangular plate 9 clamps the injector first, the gear 15 and rack 17 on that side stop moving. Continuing to rotate the second threaded rod 21 causes the rack 17 on the other side to continue moving backward until the other side of the triangular plate 9 clamps the outer wall of the injector. This utility model clamps the upper and lower ends of the injector simultaneously when the diameters of the upper and lower ends of the injector are not equal, resulting in a more secure clamping.

[0027] As a technical optimization of this utility model, the adjustment mechanism includes two sliding grooves 3 that pass through the side wall of the U-shaped seat 1. The outer wall of the mounting seat 2 is fixedly connected to two sliders 4 that are slidably connected to the sliding grooves 3. The inner wall of one of the sliding grooves 3 is rotatably connected to a first threaded rod 5. The two mounting seats 2 are respectively threaded to the two ends of the first threaded rod 5 through the sliders 4.

[0028] In this embodiment: rotating the first threaded rod 5 causes the two mounting seats 2 to move synchronously relative to each other or in opposite directions, thereby adjusting the distance between the two mounting seats 2 so as to facilitate adjustment according to the height of the injector.

[0029] As a technical optimization of this utility model, a limiting rod 6 is fixedly connected to the inner wall of another slide groove 3, and two mounting seats 2 are slidably connected to the outer wall of the limiting rod 6 through sliders 4.

[0030] In this embodiment, the limiting rod 6 facilitates the limiting of the mounting base 2, making the up-and-down movement of the mounting base 2 stable.

[0031] As a technical optimization of this utility model, the thread directions at both ends of the outer wall of the first threaded rod 5 are opposite.

[0032] In this embodiment, by setting the thread directions at both ends of the outer wall of the first threaded rod 5 to be opposite, it is convenient to drive the two mounting seats 2 to move relative to each other or in opposite directions.

[0033] As a technical optimization of this utility model, handles are provided on the outer walls of both the first threaded rod 5 and the second threaded rod 21.

[0034] In this embodiment, handles are provided on the outer walls of both the first threaded rod 5 and the second threaded rod 21 to facilitate rotation of the first threaded rod 5 and the second threaded rod 21.

[0035] The working principle and usage process of this utility model are as follows: In use, firstly, adjust the distance between the two mounting seats 2 according to the height of the injector. Specifically, rotate the first threaded rod 5, which drives the two mounting seats 2 to move synchronously relative to each other or in opposite directions, thereby adjusting the distance between the two mounting seats 2. After adjusting the distance between the two mounting seats 2 appropriately, place the injector above the support plate 24 and in the through holes of the two mounting seats 2. Then, rotate the second threaded rod 21, which drives the connecting rod 23 to move backward through the second hinge seat 22, thereby driving the two sleeves 19 to move backward. The two sleeves 19 further drive the two straight racks through the first hinge seat 18. 17 moves backward, and the rack 17 drives the gear 15 to rotate counterclockwise, which in turn drives the rotating ring 12 to rotate counterclockwise through the convex ring 14. The rotating ring 12 further drives multiple triangular plates 9 to move closer to each other along the hexagonal groove 8 through the slot 13 and the vertical shaft 11, clamping and fixing the injector. When one side of the triangular plate 9 clamps the injector first, the gear 15 and rack 17 on that side stop moving. If the second threaded rod 21 continues to rotate, it will drive the rack 17 on the other side to continue to move backward until the triangular plate 9 on the other side clamps the outer wall of the injector. This utility model clamps the upper and lower ends of the injector simultaneously when the diameters of the upper and lower ends of the injector are not equal, making the clamping more secure.

[0036] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0037] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A special tooling for a fuel injector body machining center, comprising a U-shaped seat (1), characterized in that: The U-shaped seat (1) has two clamping mechanisms inside through an adjustment mechanism. The clamping mechanism includes a mounting seat (2) with a through hole in the center. The mounting seat (2) has a cavity (7) inside. The bottom surface of the cavity (7) has a hexagonal groove (8). The cavity (7) has six triangular plates (9) inside. The lower surface of the triangular plates (9) is fixedly connected to a limiting block (10) that slides through the hexagonal groove (8). The upper surface of the triangular plates (9) is fixedly connected to a vertical shaft (11). The cavity ( 7) is internally rotatably connected to a rotating ring (12) located above the triangular plate (9). The outer wall of the rotating ring (12) is provided with multiple slots (13) that are slidably connected to the vertical shaft (11). The upper end face of the rotating ring (12) is fixedly connected to a protruding ring (14) extending to the upper part of the mounting base (2). The outer wall of the protruding ring (14) is fixedly connected to a gear (15). The upper end face of the mounting base (2) is fixedly connected to a slide rail (16). The inner wall of the slide rail (16) is slidably connected to a straight rack (17) that meshes with the gear (15). A support plate (24) is fixedly connected to the lower end face of the mounting base (2) located on the lower side.

2. The special tooling for a fuel injector body machining center according to claim 1, characterized in that: The inner wall of the U-shaped seat (1) is fixedly connected to an ear plate (20). The outer wall of the ear plate (20) is threaded through and connected to a second threaded rod (21). The front end of the second threaded rod (21) is rotatably connected to a second hinge seat (22). The inner wall of the second hinge seat (22) is rotatably connected to a connecting rod (23) via a coupling shaft. Both ends of the connecting rod (23) are fitted with sleeves (19). The outer walls of the two sleeves (19) are rotatably connected to first hinge seats (18) via a coupling shaft. The rear end faces of the two first hinge seats (18) are fixedly connected to two straight racks (17) respectively.

3. The special tooling for a fuel injector body machining center according to claim 2, characterized in that: The adjustment mechanism includes two sliding grooves (3) that pass through the side wall of the U-shaped seat (1). The outer wall of the mounting seat (2) is fixedly connected to two sliders (4) that are slidably connected to the sliding grooves (3). The inner wall of one of the sliding grooves (3) is rotatably connected to a first threaded rod (5). The two mounting seats (2) are respectively threaded to the two ends of the first threaded rod (5) through the sliders (4).

4. The special tooling for a fuel injector body machining center according to claim 3, characterized in that: Another groove (3) has a limit rod (6) fixedly connected to its inner wall, and the two mounting seats (2) are slidably connected to the outer wall of the limit rod (6) by sliders (4).

5. The special tooling for a fuel injector body machining center according to claim 3, characterized in that: The threads at both ends of the outer wall of the first threaded rod (5) are in opposite directions.

6. The special tooling for a fuel injector body machining center according to claim 3, characterized in that: The outer walls of the first threaded rod (5) and the second threaded rod (21) are both provided with handles.

Images