Positioning clamp for electric spark side hole drilling of valve sleeve

Abstract

The utility model belongs to the technical field of electric spark machining, and discloses a positioning clamp for electric spark side hole punching of a valve bush, which comprises a workbench, a first connecting rod fixedly connected to the left side of the top of the workbench, a first sliding groove arranged in the middle of the top of the workbench, and a first sliding block arranged in the first sliding groove. The top of the first sliding block is fixedly connected with a second connecting rod, second sliding grooves are formed in the first connecting rod and the second connecting rod, second sliding blocks are arranged in the second sliding grooves, one ends of the second sliding blocks are fixedly connected with a fixing clamping plate, and a through hole is formed in the fixing clamping plate. The position of a second sliding block in a second connecting rod in a second sliding groove is moved, a fixing clamping plate clamps and fixes the valve sleeve, the adaptability is high, clamping can be conducted according to valve sleeves of different specifications, and the using effect of the clamp is improved; and by starting the motor, the threaded rod runs to drive the sliding block to move in the sliding groove, and convenience is brought to automatic operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric discharge machining, and particularly relates to a positioning fixture for electric discharge machining of side holes on a valve sleeve. Background Technique

[0002] The common rail injector is a key component in the common rail system of a diesel engine. The key technology to be solved by the common rail injector lies in accurately controlling the fuel injection quantity so that the spray characteristics of the common rail injector meet the requirements of the diesel engine combustion system. In this process, the valve assembly in the common rail injector plays an important role.

[0003] Currently, when machining side holes on the existing valve sleeve, a positioning fixture is required. The existing positioning fixture has poor adaptability and cannot clamp valve sleeves of different specifications, reducing the use effect of the fixture. For this reason, we propose a positioning fixture for electric discharge machining of side holes on a valve sleeve. Content of the Utility Model

[0004] The purpose of the utility model is to provide a positioning fixture for electric discharge machining of side holes on a valve sleeve to solve the problem that the existing positioning fixture has poor adaptability, cannot clamp valve sleeves of different specifications, and reduces the use effect of the fixture as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A positioning fixture for electric discharge machining of side holes on a valve sleeve, including a workbench. A first connecting rod is fixedly connected to the left side of the top of the workbench. A first sliding groove is provided in the middle of the top of the workbench. A first sliding block is provided inside the first sliding groove. The first sliding block is slidably connected inside the first sliding groove. A second connecting rod is fixedly connected to the top of the first sliding block. Second sliding grooves are provided inside both the first connecting rod and the second connecting rod. A second sliding block is provided inside the second sliding groove. The second sliding block is slidably connected inside the second sliding groove. One end of the second sliding block is fixedly connected to a fixed clamping plate, and through holes are provided inside the fixed clamping plate.

[0006] Preferably, a first threaded rod is provided inside the first sliding groove. The first threaded rod is rotationally connected to the first sliding groove and is in threaded connection with the first sliding groove. A first motor is provided at one end of the first threaded rod.

[0007] Preferably, a second threaded rod is provided inside the second sliding groove. The second threaded rod is rotationally connected to the second sliding groove and is in threaded connection with the second sliding groove. A second motor is provided at one end of the second threaded rod.

[0008] Preferably, anti-slip protrusions are provided on the inner side of the fixed clamping plate, and the number of the anti-slip protrusions is several.

[0009] Preferably, the bottom of the workbench is fixedly connected with legs, the legs are located at the corners of the bottom of the workbench, and the number of the legs is four.

[0010] Preferably, a storage box is fixedly connected to the middle of the bottom of the workbench, and a drawer is slidably connected inside the storage box.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. By placing the valve sleeve inside the fixed clamping plate on the right side of the first connecting rod, and moving the position of the first slider at the bottom of the second connecting rod inside the first sliding groove, the front and back positions of the second connecting rod are adjusted. Then, move the position of the second slider inside the second connecting rod inside the second sliding groove. The fixed clamping plate on the left side of the second connecting rod cooperates with the fixed clamping plate on the right side of the first connecting rod to clamp and fix the valve sleeve. Drilling operations are carried out through the provided through holes, with strong adaptability, capable of clamping valve sleeves of different specifications, and improving the use effect of the fixture.

[0013] 2. By starting the first motor and the second motor, the first threaded rod and the second threaded rod operate, respectively driving the first slider to move inside the first sliding groove and the second slider to move inside the second sliding groove, which brings convenience to automated operations. By pulling out the drawer from the storage box to store related tools, while increasing the weight, the practicality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic side view structure diagram of the present utility model.

[0016] In the figure: 1. Workbench; 2. First connecting rod; 3. First sliding groove; 4. First slider; 5. Second connecting rod; 6. Second sliding groove; 7. Second slider; 8. Fixed clamping plate; 9. Through hole; 10. First threaded rod; 11. First motor; 12. Second threaded rod; 13. Second motor; 14. Anti-slip protrusion; 15. Leg; 16. Storage box; 17. Drawer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figure 1-2, the present utility model provides a technical solution for a positioning fixture for electric spark side hole drilling of a valve sleeve: including a workbench 1, a first connecting rod 2 is fixedly connected to the left side of the top of the workbench 1, a first chute 3 is provided in the middle of the top of the workbench 1, a first slider 4 is provided inside the first chute 3, the first slider 4 is slidably connected inside the first chute 3, a second connecting rod 5 is fixedly connected to the top of the first slider 4, second chutes 6 are provided inside both the first connecting rod 2 and the second connecting rod 5, a second slider 7 is provided inside the second chutes 6, the second slider 7 is slidably connected inside the second chutes 6, and one end of the second slider 7 is fixedly connected to a fixed clamping plate 8, and a through hole 9 is provided inside the fixed clamping plate 8.

[0019] Specifically, a first threaded rod 10 is provided inside the first chute 3, the first threaded rod 10 is rotatably connected to the first chute 3, the first threaded rod 10 is threadedly connected to the first chute 3, and a first motor 11 is provided at one end of the first threaded rod 10.

[0020] Specifically, a second threaded rod 12 is provided inside the second chute 6, the second threaded rod 12 is rotatably connected to the second chute 6, the second threaded rod 12 is threadedly connected to the second chute 6, and a second motor 13 is provided at one end of the second threaded rod 12.

[0021] Specifically, anti-slip protrusions 14 are provided on the inner side of the fixed clamping plate 8, and the number of the anti-slip protrusions 14 is several.

[0022] Specifically, legs 15 are fixedly connected to the bottom of the workbench 1, the legs 15 are located at the corners of the bottom of the workbench 1, and the number of the legs 15 is four.

[0023] Specifically, a storage box 16 is fixedly connected to the middle of the bottom of the workbench 1, and a drawer 17 is slidably connected inside the storage box 16.

[0024] In this implementation scheme, when the fixture is used, the valve sleeve is placed inside the fixed clamping plate 8 on the right side of the first connecting rod 2. By moving the position of the first slider 4 at the bottom of the second connecting rod 5 inside the first chute 3, the front and back position of the second connecting rod 5 is adjusted. Then, move the position of the second slider 7 inside the second connecting rod 5 inside the second chute 6. The fixed clamping plate 8 on the left side of the second connecting rod 5 cooperates with the fixed clamping plate 8 on the right side of the first connecting rod 2 to clamp and fix the valve sleeve. Drilling operations are carried out through the provided through hole 9. The adaptability is relatively strong, and it can clamp valve sleeves of different specifications, improving the use effect of the fixture.

[0025] By starting the first motor 11 and the second motor 13, the first threaded rod 10 and the second threaded rod 12 rotate, driving the first slider 4 to move inside the first chute 3 and the second slider 7 to move inside the second chute 6 respectively, which brings convenience to the automated operation. The provided anti-slip protrusions 14 achieve the anti-slip effect. By pulling out the drawer 17 from the storage box 16 to store related utensils, while increasing the weight, the practicality is improved.

[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation. An element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0027] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for electric spark drilling of side holes in valve sleeves, comprising a workbench (1), characterized in that: A No. 1 connecting rod (2) is fixedly connected to the left side of the top of the workbench (1); a No. 1 slide groove (3) is provided in the middle of the top of the workbench (1); a No. 1 slider (4) is provided inside the No. 1 slide groove (3); the No. 1 slider (4) is slidably connected inside the No. 1 slide groove (3); a No. 2 connecting rod (5) is fixedly connected to the top of the No. 1 slider (4); a No. 2 slide groove (6) is provided inside the No. 1 connecting rod (2) and the No. 2 connecting rod (5); a No. 2 slider (7) is provided inside the No. 2 slide groove (6); the No. 2 slider (7) is slidably connected inside the No. 2 slide groove (6); a fixed splint (8) is fixedly connected to one end of the No. 2 slider (7); a through hole (9) is provided inside the fixed splint (8).

2. A positioning fixture for electric spark drilling of side holes in valve sleeves according to claim 1, characterized in that: A No. 1 threaded rod (10) is provided inside the No. 1 slide groove (3), the No. 1 threaded rod (10) is rotatably connected to the No. 1 slide groove (3), the No. 1 threaded rod (10) is connected to the No. 1 slide groove (3) by threads, and a No. 1 motor (11) is provided at one end of the No. 1 threaded rod (10).

3. A positioning fixture for electric spark drilling of side holes in valve sleeves according to claim 1, characterized in that: A No. 2 threaded rod (12) is provided inside the No. 2 slide groove (6), and the No. 2 threaded rod (12) is rotatably connected to the No. 2 slide groove (6). The No. 2 threaded rod (12) and the No. 2 slide groove (6) are connected by threads, and a No. 2 motor (13) is provided at one end of the No. 2 threaded rod (12).

4. A positioning fixture for electric spark drilling of side holes in valve sleeves according to claim 1, characterized in that: The inner side of the fixed clamping plate (8) is provided with anti-skid protrusions (14), and the number of the anti-skid protrusions (14) is several.

5. The positioning fixture for electric spark drilling of side holes in valve sleeves according to claim 1, characterized in that: The bottom of the workbench (1) is fixedly connected with a support leg (15), the support leg (15) is located at the bottom corner of the workbench (1), and the number of the support legs (15) is four.

6. A positioning fixture for electric spark drilling of side holes in valve sleeves according to claim 1, characterized in that: A storage box (16) is fixedly connected to the middle of the bottom of the workbench (1), and a drawer (17) is slidably connected inside the storage box (16).

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