A fuel injector machining clamping fixture

Abstract

This utility model provides a fuel injector processing clamping fixture, including a raw material, and further comprising: a support frame, on which a drive shaft is mounted, and at one end of the drive shaft a spacing adjustment plate; a drive unit, mounted on the support frame and engaging with the drive shaft; and a clamping unit, comprising a first clamping member and a second clamping member. The fuel injector processing clamping fixture provided by this utility model allows the raw material to be inserted into the axis of the first and second clamping members. By rotating the cover, the clamping sleeve contracts to clamp and fix the raw material. After one end of the raw material is processed, the second clamping member can be released and moved on the spacing adjustment plate towards the processed end. After the movement is complete, the second clamping member clamps again. Then, the first clamping member is released, moved to fit against the second clamping member, and locked again, thereby completing the overall processing of the raw material and improving the coaxiality of the processed material.

Description

Technical Field

[0001] This utility model relates to the field of clamping tooling technology, and more specifically to a clamping tooling for processing fuel injectors. Background Technology

[0002] Fuel injectors are one of the most important components in an engine. Normally they are closed. When the fuel pressure exceeds the rated setting, the filter element in the fuel injector will open, and the high-pressure fuel will be sprayed out from the fuel hole to form a mist. It will then be ignited in the engine to make the piston reciprocate, so as to keep the engine running.

[0003] Before machining, the blank of the fuel injector is usually cylindrical. It is clamped on a CNC machine tool and turned to make its external shape conform to the dimensions of the drawing. However, when machining the fuel injector, one end needs to be clamped and fixed by a fixture, and the other end needs to be machined. Then the part needs to be turned around. After turning around, it is inevitable that the axis of the two ends of the workpiece will be deviated, which will affect the coaxiality and even affect the assembly and use performance. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology and to solve the problem of easy deviation in coaxiality during the machining of both ends of the fuel injector.

[0005] To achieve the above objectives, this utility model can be implemented through the following technical solution: a fuel injector processing clamping fixture, comprising raw materials, and further comprising:

[0006] A support frame, on which a drive shaft is provided, and at one end of the drive shaft a spacing adjustment plate is provided;

[0007] A drive unit is mounted on the support frame and engages with the transmission shaft;

[0008] A clamping unit is provided on a plate including a first clamping member and a second clamping member, both of which are disposed on the spacing adjustment plate.

[0009] Both the first clamping member and the second clamping member include a cover, a support plate, and a sleeve that is snapped onto the support plate. The cover is threaded onto the support plate and rotates on the support plate to lock the raw material with the sleeve.

[0010] In this embodiment of the utility model, the sleeve is provided with blades arranged in a circumferential array, and the inner wall of the cover is provided with an inclined surface that abuts against the blades.

[0011] In this embodiment of the utility model, a locking groove is provided on the support plate, a lever is provided in the locking groove, and a locking block is provided at one end of the lever;

[0012] The spacing adjustment plate is provided with toothed blocks, and the locking block is engaged with the toothed blocks.

[0013] In this embodiment of the utility model, the toothed block is provided with a triangular portion that abuts against the toothed block.

[0014] In this embodiment of the utility model, a slide rail is provided on the spacing adjustment plate, and the support plate slides on the slide rail.

[0015] In this embodiment of the utility model, the support plate is provided with a threaded portion, which cooperates with the cover.

[0016] In this embodiment of the utility model, the support frame includes a base plate and side plates disposed on the base plate, a reinforcing plate and a support rod are disposed between the two side plates, and the transmission shaft is rotatably connected to the side plates.

[0017] In this embodiment of the utility model, a bearing that engages with the transmission shaft is provided on the side plate.

[0018] In this embodiment of the utility model, the drive unit includes a motor and a first bevel gear disposed at the output end of the motor, and a second bevel gear meshing with the first bevel gear is disposed on the transmission shaft.

[0019] In this embodiment of the utility model, a protective cover is provided on the support frame.

[0020] Compared with the prior art, the advantages of this application are as follows: the raw material is inserted into the axis of the first clamping member and the second clamping member, and the ferrule is contracted by rotating the cover to clamp and fix the raw material. After one end of the raw material is processed, the second clamping member can be released and moved towards the processed end on the spacing adjustment plate. After the movement is completed, the second clamping member clamps again, and the first clamping member is released, moved to fit against the second clamping member, and locked again. In this way, the overall processing of the raw material is completed, thereby improving the coaxiality of the raw material after processing. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall component assembly structure;

[0022] Figure 2 This is a schematic diagram of the internal parts structure after the upper side plate of the support frame has been disassembled;

[0023] Figure 3 This is an exploded view of the components in the clamping unit;

[0024] Figure 4It is a front view plan of the overall half section.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Support frame; 11. Base plate; 12. Reinforcing plate; 13. Support rod; 14. Side plate; 2. Drive unit; 21. Motor; 22. First bevel gear; 23. Protective cover; 24. Second bevel gear; 25. Drive shaft; 3. Clamping unit; 31. Spacing adjustment plate; 310. Toothed block; 311. Slide rail; 32. First clamping component; 33. Second clamping component; 34. Support plate; 341. Threaded part; 342. Locking groove; 343. Lever; 344. Locking block; 345. Triangular part; 35. Sleeve; 351. Blade; 36. Cover; 4. Raw material. Detailed Implementation

[0027] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0028] like Figure 1-4 As shown, a fuel injector machining clamping fixture includes raw material 4, and also includes:

[0029] Support frame 1, on which a drive shaft 25 is provided, and a spacing adjustment plate 31 is provided at one end of the drive shaft 25;

[0030] Drive unit 2 is mounted on support frame 1 and engages with drive shaft 25;

[0031] The clamping unit 3 is disposed on a plate including a first clamping member 32 and a second clamping member 33, both of which are disposed on the spacing adjustment plate 31.

[0032] Both the first clamping member 32 and the second clamping member 33 include a cover 36, a support plate 34, and a ferrule 35 that is snapped onto the support plate 34. The cover 36 is threaded onto the support plate 34 and rotates on the support plate 34 to lock the raw material 4 with the ferrule 35.

[0033] Specifically, the raw material 4 is cylindrical and passes through the first clamping member 32 and the second clamping member 33. At this time, the first clamping member 32 and the second clamping member 33 are in a close fit. Then, the cover 36 is rotated step by step to lock and fix the raw material 4 by squeezing the sleeve 35 through the cover 36. Then, the upper end face of the raw material 4 is processed by the machine tool (the upper end face refers to the surface of the raw material 4). Figure 1After processing (above), the first clamping member 32 and the second clamping member 33 are controlled by the drive unit 2 to rotate the raw material 4 180 degrees. Then the second clamping member 33 is released to move the second clamping member 33 to the processed end for clamping and locking. Then the first clamping member 32 is released and moves to fit against the second clamping member 33 for locking. At this time, both the first clamping member 32 and the second clamping member 33 clamp the processed end, so as to fully expose the unprocessed end face. The machine tool then processes it to complete the overall processing of the raw material 4, thereby improving the coaxiality of the two ends of the raw material 4 after processing.

[0034] As a further embodiment of this utility model, the sleeve 35 is provided with blades 351 arranged in a circumferential array, and the inner wall of the cover 36 is provided with an inclined surface that abuts against the blades 351. When the material 4 is placed at the central axis of the first clamping member 32 and the second clamping member 33, the cover 36 is rotated and slid towards the sleeve 35. During its movement, the inclined surface will gradually squeeze the blades 351 and make the blades 351 fit against the material 4 and apply pressure to it until the material 4 is locked and fixed. The blades 351 are made of rubber and are evenly distributed in multiple groups in a ring along the central axis of the sleeve 35, thereby improving the fixing effect on the material 4.

[0035] As a further embodiment of this utility model, a locking groove 342 is provided on the support plate 34, and a lever 343 is provided in the locking groove 342. A locking block 344 is provided at one end of the lever 343. A toothed block 310 is provided on the spacing adjustment plate 31. The locking block 344 is engaged with the toothed block 310. When the position of the first clamping member 32 or the second clamping member 33 is determined, since the lever 343 is threadedly connected to the support plate 34, rotating the lever 343 pushes the locking block 344 to extend on the support plate 34, so that the locking block 344 engages with the toothed block 310, thereby fixing the first clamping member 32 or the second clamping member 33.

[0036] As a further embodiment of this utility model, the toothed block 310 is provided with a triangular portion 345 that abuts against the toothed block 310. The toothed block 310 has a plurality of toothed grooves, and the toothed grooves fit into the triangular portion 345, thereby improving the locking effect on the support plate 34.

[0037] As a further embodiment of this utility model, a slide rail 311 is provided on the spacing adjustment plate 31, and the support plate 34 slides on the slide rail 311. The slide rail 311 restricts the sliding of the support plate 34 so that the support plate 34 can only slide up or down along the spacing adjustment plate 31.

[0038] As a further embodiment of this utility model, the support plate 34 is provided with a threaded portion 341, which cooperates with the cover 36. The threaded portion 341 serves as a guide so that the cover 36 slides along the central axis of the support plate 34, thereby improving the fit between the cover 36 and the sleeve 35.

[0039] As a further embodiment of this utility model, the support frame 1 includes a base plate 11 and side plates 14 disposed on the base plate 11. A reinforcing plate 12 and a support rod 13 are disposed between the two side plates 14. A transmission shaft 25 is rotatably connected to the side plates 14. The reinforcing plate 12 and the support rod 13 are symmetrically disposed between the two side plates 14 to improve the stability of the support frame 1 during operation. The base plate 11 is provided with multiple mounting holes to facilitate fixing the device to the machine tool.

[0040] As a further embodiment provided in this utility model, a bearing is provided on the side plate 14 that engages with the drive shaft 25, and the bearing improves the rotational stability of the drive shaft 25.

[0041] As a further embodiment of this utility model, the drive unit 2 includes a motor 21 and a first bevel gear 22 disposed at the output end of the motor 21. A second bevel gear 24 meshing with the first bevel gear 22 is disposed on the transmission shaft 25. The motor 21 is model number MHMF042L1U4-1116. The first bevel gear 22 is rotated by the motor 21, thereby driving the second bevel gear 24 and the transmission shaft 25 to rotate synchronously, thereby adjusting the angle of the raw material 4 relative to the cutting tool, so as to meet the processing requirements of the fuel injector side hole.

[0042] As a further embodiment of this utility model, a protective cover 23 is provided on the support frame 1. The protective cover 23 covers the first bevel gear 22 and the second bevel gear 24, thereby protecting the first bevel gear 22 and the second bevel gear 24 and improving the service life of the first bevel gear 22 and the second bevel gear 24.

[0043] The above-described technical solution of this utility model addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The parts not covered in this application's technical solution are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0044] The technical solutions in the above embodiments have clearly and completely described the content of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. An oil nozzle machining clamping tooling comprising a raw material, characterized by, Also includes: A support frame, on which a drive shaft is provided, and at one end of the drive shaft a spacing adjustment plate is provided; A drive unit is mounted on the support frame and engages with the transmission shaft; A clamping unit is provided on a plate including a first clamping member and a second clamping member, both of which are disposed on the spacing adjustment plate. Both the first clamping member and the second clamping member include a cover, a support plate, and a sleeve that is snapped onto the support plate. The cover is threaded onto the support plate and rotates on the support plate to lock the raw material with the sleeve.

2. The fuel nozzle machining clamp tool of claim 1, wherein, The sleeve has blades arranged in a circumferential array, and the inner wall of the cover has an inclined surface that abuts against the blades.

3. The nozzle machining clamping tool of claim 1, wherein The support plate is provided with a locking groove, a lever is provided in the locking groove, and a locking block is provided at one end of the lever; The spacing adjustment plate is provided with toothed blocks, and the locking block is engaged with the toothed blocks.

4. The nozzle machining clamping tooling of claim 3, wherein, The toothed block is provided with a triangular portion that abuts against the toothed block.

5. The fuel injector machining clamping fixture according to claim 3, characterized in that, The spacing adjustment plate is provided with a slide rail, and the support plate slides on the slide rail.

6. The nozzle machining clamp tool of claim 1, wherein The support plate is provided with a threaded portion, which mates with the cover.

7. The fuel nozzle machining clamp tool of claim 1, wherein, The support frame includes a base plate and side plates disposed on the base plate. A reinforcing plate and a support rod are disposed between the two side plates, and the drive shaft is rotatably connected to the side plates.

8. The nozzle machining clamping tool of claim 7, wherein The side plate is provided with a bearing that engages with the drive shaft.

9. The nozzle machining clamp tool of claim 1, wherein, The drive unit includes a motor and a first bevel gear disposed at the output end of the motor, and a second bevel gear meshing with the first bevel gear is disposed on the transmission shaft.

10. The fuel injector machining clamping fixture according to claim 1, characterized in that, The support frame is equipped with a protective cover.

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