Ejector body machining clamping fixture

Abstract

The utility model relates to a clamping fixture for machining an ejector body. The device comprises a base, the positioning plate is positioned and placed on the base; the clamping positioning block is positioned and placed on the positioning plate and is provided with a clamping hole into which the bottom end of the ejector main body extends, and the clamping hole can clamp the ejector main body; the positioning block pressing assembly is used for pressing and positioning the clamping positioning block on the positioning plate; the supporting block is arranged above one side of the clamping positioning block and is used for being supported on a step formed between the ejector main body and the radial convex body; the angle positioning block is arranged above one side of the clamping positioning block, and the angle positioning block is provided with a positioning groove for placing the radial convex body; and the axial pressing assembly is used for pressing the upper end of the ejector main body. According to the positioning device, the ejector body can be quickly positioned in a machine tool during machining, the operation is simple, the clamping frequency is reduced, and the positioning precision and the benign rate are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a clamping fixture for machining an injector body. Background Art

[0002] The injector body is a component widely used in modern mechanical manufacturing, and is commonly used in fields such as hydraulic systems and spraying equipment. The machining quality of the injector body directly affects its function and service life. Therefore, high-precision and stable positioning are required during the machining process.

[0003] However, at present, the machining of most injector bodies still relies on traditional manual positioning and clamping. This process requires operators to manually adjust and fix the workpiece multiple times to ensure that the predetermined accuracy can be achieved for each machining. Manual positioning and clamping not only take a long time, but also due to the influence of human factors, it is difficult to guarantee the positioning accuracy. This results in problems such as low efficiency, low positioning accuracy, and high scrap rate during the machining process. Summary of the Invention

[0004] Therefore, the utility model provides a clamping fixture for machining an injector body, which can realize the rapid positioning of the injector body in the machine tool during machining, and has simple operation, reduces the clamping times, and improves the positioning accuracy and the good product rate.

[0005] To solve the above technical problems, the utility model provides a clamping fixture for machining an injector body. The injector body includes a cylindrical injector main body and a radial convex body radially extending from the injector main body. The clamping fixture includes:

[0006] A base;

[0007] A positioning plate, which is positioned and placed on the base;

[0008] A clamping and positioning block, which is positioned and placed on the positioning plate and is provided with a clamping hole for the bottom end of the injector main body to extend into, and the clamping hole can clamp the injector main body;

[0009] A positioning block pressing component, which is used to press and position the clamping and positioning block on the positioning plate;

[0010] A support block, which is arranged above one side of the clamping and positioning block and is used to support on the step formed between the injector main body and the radial convex body;

[0011] An angle positioning block, which is arranged above one side of the clamping and positioning block, and the angle positioning block is provided with a positioning groove for placing the radial convex body;

[0012] An axial pressing component, which is used to press the upper end of the injector main body.

[0013] In one embodiment of the utility model, the base is provided with a placement groove for positioning the positioning plate, the placement groove is provided with a first locking hole, and the positioning plate is provided with a second locking hole that cooperates with the first locking hole to lock.

[0014] In one embodiment of the utility model, the clamping positioning block is provided with a first arc-shaped recess and a clamping plate located on one side of the first arc-shaped recess, the clamping plate includes a second arc-shaped recess and a locking block connected to the second arc-shaped recess, the clamping hole is formed between the first arc-shaped recess and the second arc-shaped recess, and the two opposite side ends of the clamping positioning block are respectively provided with a first connecting piece that abuts against the outer end of the clamping plate and a second connecting piece connected to the locking block.

[0015] In one embodiment of the utility model, two positioning bosses are extended along the surface of the positioning plate and arranged opposite to each other along the first direction, and the positioning bosses are supported at the bottom of the clamping positioning block, and each of the positioning bosses is located outside the side end of the clamping positioning block and is provided with at least one first positioning pin;

[0016] Two groups of second positioning pins are arranged opposite to each other on the surface of the positioning plate along a second direction perpendicular to the first direction, and the second positioning pins are located outside the side ends of the clamping positioning block.

[0017] In one embodiment of the utility model, a third positioning pin is arranged on one of the positioning bosses, and a notch for mating with the third positioning pin is formed at a side end of the clamping positioning block.

[0018] In one embodiment of the present invention, the positioning block clamping assembly includes a first quick toggle clamp located beside each positioning boss.

[0019] In one embodiment of the utility model, a vertical support plate is provided on the base, the vertical support plate is provided with a bracket, and the axial clamping assembly includes a second quick toggle clamp installed on the bracket.

[0020] In one embodiment of the present invention, the support block includes two L-shaped blocks arranged opposite to each other and a connecting block connected between the two L-shaped blocks, and a clearance opening for the injector body to pass through is formed between the two L-shaped blocks.

[0021] In one embodiment of the present utility model, the angle positioning block includes limiting blocks installed on each of the L-shaped blocks and arranged opposite to each other, and the positioning groove is formed between two limiting blocks and the connecting block.

[0022] In one embodiment of the utility model, it also includes a vertical support seat arranged on one side of the positioning plate, and the two L-shaped blocks are installed on the upper end of the vertical support seat.

[0023] The above technical solution of the present utility model has the following advantages compared with the prior art:

[0024] A clamping fixture for machining an injector body of the present utility model, through the combined design of a base, a positioning plate and a clamping and positioning block, can ensure rapid and accurate positioning of the injector body during the clamping process. The use of a support block and an angle positioning block can ensure the consistency of the angle and height of the injector body in the fixture. The setting of the positioning block pressing assembly and the axial pressing assembly enables the injector body to be quickly fixed, which can reduce the operation time, simplify the clamping process and improve the work efficiency. Through precise positioning and stable fixation, the rejection rate caused by inaccurate positioning during the machining process can be significantly reduced, and the material utilization rate and production efficiency can be improved. Description of the Drawings

[0025] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model in conjunction with the drawings.

[0026] Figure 1 It is a schematic diagram of the overall structure of the clamping fixture for machining the injector body of the present utility model.

[0027] Figure 2 It is a schematic diagram of the structure of the clamping and positioning block of the present utility model.

[0028] Figure 3 It is a schematic diagram of the structure of the injector body of the present utility model.

[0029] Figure 4 It is a schematic diagram of the structure of the support block and the angle positioning block of the present utility model.

[0030] Explanation of the reference numerals in the drawings:

[0031] 1. Base; 11. Placing groove; 12. Vertical support plate; 13. Bracket; 14. Vertical support seat;

[0032] 2. Positioning plate; 21. Positioning boss; 22. First positioning pin; 23. Second positioning pin; 24. Third positioning pin;

[0033] 3. Clamping and positioning block; 31. Clamping hole; 32. First arc-shaped notch; 33. Clamping plate; 34. Second arc-shaped notch; 35. Locking block; 36. First connecting piece; 37. Second connecting piece; 371. Shaft body; 372. First spring; 373. Second spring; 38. Notch;

[0034] 4. Positioning block pressing assembly;

[0035] 5. Support block; 51. L-shaped block; 52. Connecting block;

[0036] 6. Angle positioning block; 61. Positioning groove; 62. Limiting block;

[0037] 7. Axial pressing assembly; 71. Pressing block;

[0038] 8. Injector body; 81. Injector main body; 82. Radial convex body. Detailed implementation manners

[0039] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited are not intended to limit the present utility model.

[0040] In the present utility model, when directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present utility model, rather than indicating or implying that the technical features referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0041] In the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and understandings such as "greater than", "less than", "exceeding" do not include the present number; understandings such as "above", "below", "within" include the present number. In the description of the present utility model, if "first" and "second" are described, they are only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0042] In the present utility model, unless otherwise clearly defined, words such as "set", "installed", "connected" should be understood in a broad sense. For example, they can be directly connected, or indirectly connected through an intermediate medium; they can be fixedly connected, or detachably connected, and can also be integrally formed; they can be mechanically connected, or electrically connected or capable of communicating with each other; they can be the communication inside two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0043] Referring to Figure 1 、 Figure 3 As shown, a clamping fixture for machining an injector body of the present utility model, the injector body 8 includes a cylindrical injector main body 81 and a radial convex body 82 radially extending from the injector main body 81, and the clamping fixture includes:

[0044] Base 1;

[0045] Positioning plate 2, positioned and placed on the base 1;

[0046] The clamping and positioning block 3 is positioned and placed on the positioning plate 2 and is provided with a clamping hole 31 for the bottom end of the injector body 81 to extend into, and the clamping hole 31 can clamp the injector body 81;

[0047] The positioning block pressing assembly 4 is used to press and position the clamping and positioning block 3 on the positioning plate 2;

[0048] The support block 5 is arranged above one side of the clamping and positioning block 3 and is used to support on the step formed between the injector body 81 and the radial convex body 82;

[0049] The angle positioning block 6 is arranged above one side of the clamping and positioning block 3, and the angle positioning block 6 is provided with a positioning groove 61 for placing the radial convex body 82;

[0050] The axial pressing assembly 7 is used to press the upper end of the injector body 81.

[0051] Through the above settings, the injector body 8 can be quickly assembled with the clamping fixture, and the consistency of the angle and height is ensured; by placing the clamping fixture into the processing machine tool, the rapid and accurate positioning of the injector body 8 in the machine tool is realized, the clamping times are reduced, and the positioning accuracy and processing efficiency are improved.

[0052] In one embodiment, the base 1 is provided with a placement groove 11 for positioning and placing the positioning plate 2. The base 1 is also provided with a side step, which is convenient for the handling of the overall tooling.

[0053] The placement groove 11 is provided with a first locking hole, and the positioning plate 2 is provided with a second locking hole that cooperates with the first locking hole for locking.

[0054] In one embodiment, referring to Figure 2 As shown, the clamping and positioning block 3 is provided with a first arc-shaped notch 32 and a clamping plate 33 on one side of the first arc-shaped notch 32. The clamping plate 33 includes a second arc-shaped notch 34 and a locking block 35 connected to the second arc-shaped notch 34. The clamping hole 31 is formed between the first arc-shaped notch 32 and the second arc-shaped notch 34. Two opposite side ends of the clamping and positioning block 3 are respectively provided with a first connecting member 36 that abuts against the outer end of the clamping plate 33 and a second connecting member 37 that is connected to the locking block 35.

[0055] The first connecting member 36 adopts a first screw; the second connecting member 37 includes a shaft body 371, a first spring 372 and a second spring 373 that respectively abut against both ends of the shaft body 371. The first spring 372 is located in the through hole of the clamping and positioning block 3 and abuts against the second screw connected to the side wall of the clamping and positioning block 3, and the second spring 373 is located in the blind hole of the locking block 35.

[0056] The clamping hole 31 is formed jointly by the first arc-shaped notch 32 on the clamping and positioning block 3 and the second arc-shaped notch 34 on the clamping plate 33, which can clamp the injector body 81 efficiently and prevent it from loosening during the machining process; the size of the clamping hole 31 can adapt to injector bodies of different sizes, increasing the applicable range of the fixture.

[0057] In one embodiment, referring to Figure 1 As shown, two positioning bosses 21 arranged oppositely along the first direction extend along the surface of the positioning plate 2, the positioning bosses 21 support the bottom of the clamping and positioning block 3, and at least one first positioning pin 22 is arranged outside the side end of each positioning boss 21 of the clamping and positioning block 3;

[0058] Two groups of second positioning pins 23 are arranged oppositely along the second direction perpendicular to the first direction on the surface of the positioning plate 2, and the second positioning pins 23 are located outside the side end of the clamping and positioning block 3.

[0059] In one embodiment, a third positioning pin 24 is arranged on one of the positioning bosses 21, and a notch 38 for inserting and mating with the third positioning pin 24 is formed at the side end of the clamping and positioning block 3.

[0060] The arrangement of each positioning pin ensures the accurate placement of the clamping and positioning block 3 and improves the positioning accuracy.

[0061] In one embodiment, the positioning block pressing assembly 4 includes first quick-action toggle clamps located beside each positioning boss 21.

[0062] In one embodiment, a vertical support plate 12 is arranged on the base 1, a bracket 13 is arranged on the vertical support plate 12, the axial pressing assembly 7 includes a second quick-action toggle clamp installed on the bracket 13, and a pressing block 71 is arranged between the pressing end of the second quick-action toggle clamp and the injector body 81.

[0063] In one embodiment, referring to Figure 4 As shown, the support block 5 includes two L-shaped blocks 51 arranged oppositely and a connecting block 52 connecting the two L-shaped blocks 51, and a relief opening for the injector body 81 to pass through is formed between the two L-shaped blocks 51.

[0064] In one embodiment, referring to Figure 4 As shown, the angle positioning block 6 includes limit blocks 62 installed on each L-shaped block 51 and arranged oppositely, and the positioning groove 61 is formed between the two limit blocks 62 and the connecting block 52.

[0065] In one embodiment, it further includes a vertical support base 14 arranged on one side of the positioning plate 2, and two L-shaped blocks 51 are installed at the upper end of the vertical support base 14.

[0066] Working principle: Place the positioning plate 2 in the placement groove 11 of the base 1;

[0067] Place the clamping and positioning block 3 on the positioning plate 2 through positioning by each positioning pin, and press and fix it through the positioning block pressing assembly 4.

[0068] Insert the bottom end of the injector body 81 into the clamping hole 31 of the clamping and positioning block 3, and position the position of the radial convex body 82 through the positioning groove 61 to ensure the clamping angle of the injector body 81;

[0069] Press the upper end of the injector body 81 with the axial pressing assembly 7.

[0070] After using the elbow clamp assembly to press and fix the injector body 8 and each positioning block, use a wrench to tighten the screws of the clamping and positioning block 3.

[0071] Loosen the first quick elbow clamp and the second quick elbow clamp, take out the clamping and positioning block 3, so as to place the clamped and positioned injector body 8 into the machine tool for processing.

[0072] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A fixture for machining and clamping an injector body, the injector body (8) comprising a cylindrical injector body (81) and a radial protrusion (82) extending radially from the injector body (81), characterized in that: The clamping fixture comprises: Base (1); A positioning plate (2) positioned and placed on the base (1); a clamping positioning block (3), the clamping positioning block (3) being positioned on the positioning plate (2) and being provided with a clamping hole (31) for the bottom end of the injector body (81) to extend into, the clamping hole (31) being capable of clamping the injector body (81); A positioning block pressing assembly (4) used for pressing and positioning the clamping positioning block (3) on the positioning plate (2); A support block (5) is arranged above one side of the clamping positioning block (3) and is used to be supported on a step formed between the injector body (81) and the radial protrusion (82); An angle positioning block (6) is arranged above one side of the clamping positioning block (3), and the angle positioning block (6) is provided with a positioning groove (61) for the radial protrusion (82) to be placed; An axial pressing assembly (7) is used to press against the upper end of the injector body (81).

2. The ejector body machining fixture according to claim 1, characterized in that: The base (1) is provided with a placement groove (11) for positioning the positioning plate (2), the placement groove (11) is provided with a first locking hole, and the positioning plate (2) is provided with a second locking hole that cooperates with the first locking hole for locking.

3. The ejector body machining fixture according to claim 1, characterized in that: The clamping positioning block (3) is provided with a first arc-shaped recess (32) and a clamping plate (33) located on one side of the first arc-shaped recess (32); the clamping plate (33) includes a second arc-shaped recess (34) and a locking block (35) connected to the second arc-shaped recess (34); the clamping hole (31) is formed between the first arc-shaped recess (32) and the second arc-shaped recess (34); and two opposite side ends of the clamping positioning block (3) are respectively provided with a first connecting piece (36) abutting against the outer end of the clamping plate (33) and a second connecting piece (37) connected to the locking block (35).

4. The ejector body machining fixture according to claim 1, characterized in that: Two positioning bosses (21) are arranged opposite to each other along a first direction and extend along the surface of the positioning plate (2). The positioning bosses (21) are supported on the bottom of the clamping positioning block (3). Each positioning boss (21) is provided with at least one first positioning pin (22) outside the side end of the clamping positioning block (3). Two groups of second positioning pins (23) are arranged on the surface of the positioning plate (2) in a second direction perpendicular to the first direction, and the second positioning pins (23) are located outside the side ends of the clamping positioning block (3).

5. The ejector body machining fixture according to claim 4, characterized in that: A third positioning pin (24) is provided on one of the positioning bosses (21), and a notch (38) for mating with the third positioning pin (24) is provided on a side end of the clamping positioning block (3).

6. The ejector body machining fixture according to claim 4, characterized in that: The positioning block clamping assembly (4) comprises a first quick toggle clamp located beside each positioning boss (21).

7. The ejector body machining fixture according to claim 1, characterized in that: The base (1) is provided with a vertical support plate (12), the vertical support plate (12) is provided with a bracket (13), and the axial clamping assembly (7) comprises a second quick toggle clamp mounted on the bracket (13).

8. The ejector body machining fixture according to claim 1, characterized in that: The support block (5) comprises two L-shaped blocks (51) arranged opposite to each other and a connecting block (52) connected between the two L-shaped blocks (51); a clearance opening for the injector body (81) to pass through is formed between the two L-shaped blocks (51).

9. The ejector body machining fixture according to claim 8, characterized in that: The angle positioning block (6) comprises limiting blocks (62) mounted on each of the L-shaped blocks (51) and arranged opposite to each other, and the positioning groove (61) is formed between the two limiting blocks (62) and the connecting block (52).

10. The ejector body machining fixture according to claim 8, characterized in that: It also includes a vertical support seat (14) arranged on one side of the positioning plate (2), and the two L-shaped blocks (51) are installed on the upper end of the vertical support seat (14).

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