CN220240251U - Tool clamp for deburring ECM (electro-magnetic control) electrode of high-pressure common rail oil pipe - Google Patents

Abstract

The utility model provides a tool clamp for deburring an ECM electrode of a high-pressure common rail oil pipe, which comprises an anode head used for contacting the high-pressure common rail oil pipe, wherein the anode head is connected to an anode plate; the electrode rod is used for being embedded into the high-pressure common rail oil pipe and comprises a cathode rod, one end of the cathode rod is embedded into the cathode fixing seat after being nested with a liquid guide sleeve, and the liquid guide sleeve is provided with a liquid guide hole; the positioning plate is provided with a plurality of insulating sleeves, the top of each insulating sleeve is provided with a cathode head, and the cathode heads penetrate through oil outlet holes of the high-pressure common rail oil pipes and then are propped against the cathode rods; the anode head and the cathode head clamp the cathode rod and the high-pressure common rail oil pipe. The utility model solves the problem of how to clamp the high-pressure common rail oil pipe in the prior art, and is convenient for removing burrs between the crossed inner holes of the high-pressure common rail oil pipe in an ECM electrode deburring mode.

Description

Tool clamp for deburring ECM (electro-magnetic control) electrode of high-pressure common rail oil pipe

Technical Field

The utility model relates to the technical field of high-pressure common rail oil pipe tool clamps for automobile engines, in particular to a tool clamp for deburring an ECM electrode of a high-pressure common rail oil pipe.

Background

With the development of Chinese economy, the processing quality requirements of parts in the Chinese automobile industry are continuously improved, the productivity is increasingly increased, and the production quality and the safety requirements of products are also continuously improved. The unclean burr removal can cause dropping and jamming in the component, causing a series of problems, creating product dysfunction. The high pressure common rail is a part of the automobile engine parts, which is an important factor for automobile safety, and the problem of deburring inside the high pressure common rail oil pipe (especially at the crossing inner hole) is an important factor affecting the engine.

Electrochemical deburring (electrochemical machining-ECM) of ECM is a method of deburring a part by removing excess material from the workpiece by anodic dissolution of metal in an electrolyte.

Therefore, how to clamp the high-pressure common rail oil pipe, so that burrs between intersecting inner holes of the high-pressure common rail oil pipe can be removed conveniently through an ECM electrode deburring mode, and the technical problem to be solved is solved.

Disclosure of Invention

The utility model aims to provide a tool clamp for deburring of ECM electrodes of high-pressure common rail oil pipes, which mainly solves the problem that in the prior art, how to clamp the high-pressure common rail oil pipes and is convenient to remove burrs between intersecting inner holes of the high-pressure common rail oil pipes in an ECM electrode deburring mode.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a frock clamp for high pressure common rail oil pipe ECM electrode burring, its characterized in that: the tool clamp comprises a clamping device, a clamping device and a clamping device,

the anode head is used for contacting the high-pressure common rail oil pipe and is connected to the anode plate;

the electrode rod is used for being embedded into the high-pressure common rail oil pipe and comprises a cathode rod, one end of the cathode rod is embedded into the cathode fixing seat after being nested with a liquid guide sleeve, and the liquid guide sleeve is provided with a liquid guide hole;

the positioning plate is provided with a plurality of insulating sleeves, the top of each insulating sleeve is provided with a cathode head, and the cathode heads penetrate through oil outlet holes of the high-pressure common rail oil pipes and then are propped against the cathode rods;

the anode head and the cathode head are used for clamping the cathode rod and the high-pressure common rail oil pipe.

Furthermore, one side of the liquid guide sleeve, which is away from the cathode fixing seat, is provided with an O-shaped rubber sealing ring, and the O-shaped rubber sealing ring corresponds to the end part of the high-pressure common rail oil pipe.

Further, an insulating sleeve and conductive points are arranged on the outer side face of the cathode rod, and the conductive points correspond to the cathode heads.

Further, a cathode conducting seat is arranged on the positioning plate, and a notch part is arranged between the cathode conducting seat and the cathode fixing seat;

an anode mounting plate for mounting the anode plate is arranged above the notch, a cathode positioning block is arranged at the bottom of the anode mounting plate, and the cathode positioning block is matched with the notch;

further, the notch part is wedge-shaped, and the bottom of the cathode positioning block is wedge-shaped;

further, the cathode conductive seat is U-shaped, and a notch is formed between the U-shaped concave part and the cathode fixing seat.

Further, the fixture further comprises a bottom plate, the positioning plate is connected to the bottom plate, and cylindrical pins for positioning the positioning plate are arranged on the bottom plate.

Further, a locating pin for locating the high-pressure common rail oil pipe is arranged on the locating plate, and the locating pin is matched with a bracket hole of the high-pressure common rail oil pipe.

Further, the tool clamp further comprises an upper moving plate, a lower fixed large floor, an upper fixed large floor, a lifting plate and a guide post, wherein the bottom of the upper fixed large floor is provided with an air cylinder pull rod and a connecting rod, the air cylinder pull rod is connected with the lifting plate, the lifting plate is movably connected with the connecting rod, and the lifting plate moves up and down along the connecting rod under the drive of the air cylinder pull rod;

the lifting plate is connected with the upper moving plate through a movable connecting rod, the upper moving plate is movably connected with the guide post, and the upper moving plate moves up and down along the guide post under the drive of the lifting plate;

the bottom of the guide post is connected with the lower fixed large floor;

the anode mounting plate and the anode plate are connected to the bottom of the upper moving plate, and the upper moving plate moves up and down to clamp or release the anode head and the cathode head from the cathode rod and the high-pressure common rail oil pipe.

Further, the liquid guide sleeve, the anode mounting plate, the upper moving plate, the positioning plate and the bottom plate are all made of insulating materials;

the cathode positioning block, the cathode conducting seat and the cathode fixing seat are all made of metal materials;

the anode mounting plate is connected with the cathode positioning block through a second screw;

the cathode conductive seat is provided with a first screw;

the positioning plate is connected with the bottom plate through a third screw;

the cathode fixing seat is connected with the liquid guide sleeve through a fourth screw;

the cathode fixing seat is provided with a fifth screw for fixing one end of the cathode rod;

the pneumatic element is a cylinder;

the gap between the anode and the cathode rod and the cathode head of the high-pressure common rail oil pipe is 0.3mm.

In view of the above technical features, the present utility model has the following advantages:

1. according to the tool clamp for deburring the ECM electrode of the high-pressure common rail oil pipe, the ECM electrode (namely the electrode rod) is inserted into the high-pressure common rail oil pipe, the clamp is placed according to requirements, the high-pressure common rail oil pipe is positioned through the positioning pin and is installed and fixed on the clamp, and the pneumatic element drives the anode mounting plate to move downwards to compress the high-pressure common rail oil pipe. The cathode positioning block is arranged on the anode mounting plate and is respectively contacted with the cathode fixing seat and the cathode conducting seat, the cathode fixing seat is connected with the electrode rod, the electrode rod is contacted with the cathode head, the cathode is connected with the cathode head, and the cathode circuit is connected. The anode is connected with a high-pressure common rail oil pipe through an anode head in a contact anode circuit, and the anode dissolves burrs at the crossing position through electrolyte (such as sodium nitrate) to achieve the effect of removing burrs. Therefore, burrs between intersecting inner holes of the parts can be effectively removed, excessive fillets are formed at intersecting positions, and the effect of removing the burrs is achieved.

Drawings

Fig. 1 is a front view of a fixture for deburring an ECM electrode of a high-pressure common rail oil pipe according to embodiment 1;

FIG. 2 is a top view of a fixture for deburring ECM electrodes of high pressure common rail tubing in accordance with example 1;

FIG. 3 is a right side view of a tool clamp for deburring an ECM electrode of a high pressure common rail oil pipe according to the embodiment 1;

fig. 4 is a front view of the high-pressure common rail oil pipe (in which the electrode rod is sleeved) in embodiment 1;

fig. 5 is a plan view of the high-pressure common rail oil pipe (in which the electrode rod is sleeved) in embodiment 1.

Fig. 6 is a front view of the high-pressure common rail oil pipe (the electrode rod is sleeved in the high-pressure common rail oil pipe and comprises a pneumatic element) in embodiment 1.

In the figure: 1. a bottom plate; 2. a positioning plate; 3. a cathode conductive base; 4. a first screw; 5. a cathode positioning block; 6. an anode mounting plate; 7. a second screw; 8. an anode plate; 9. an anode head; 10. a positioning pin; 11. an electrode rod; 12. a third screw; 13. a cylindrical pin; 14. a notch portion; 15. a cathode fixing seat; 16. a liquid guiding sleeve; 16-1, a liquid guide hole; 17. an O-shaped rubber sealing ring; 18. a cathode rod; 19. an insulating sleeve; 20. a cathode head; 21. a fifth screw; 22. a fourth screw; 23. high-pressure common rail oil pipe; 24. a machine tool workbench; 25. a large floor is fixed on the lower part; 26. a movable connecting rod; 27. a guide post; 27-1, an upper guide sleeve; 28. an upper moving plate; 29. a lifting plate; 30. a connecting rod; 31. a large floor is fixed on the upper part; 32. a cylinder tie rod; 33. the guide post fixes the screw.

Detailed Description

The utility model is further described below in conjunction with the detailed description. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present utility model, and such equivalents are intended to fall within the scope of the claims appended hereto.

Referring to fig. 1 to 6, in embodiment 1, embodiment 1 provides a tool fixture for deburring an ECM (i.e., electrochemical machining) electrode of a high-pressure common rail oil pipe, the tool fixture including an anode head 9 for contacting a high-pressure common rail oil pipe 23, the anode head 9 being connected to an anode plate 8; the high-pressure common rail oil pipe in this embodiment 1 includes a pipe body, the pipe body is inside hollow, is equipped with oil outlet and support on the pipe body, is equipped with the support hole on the support.

The electrode rod 11 is used for being embedded into the high-pressure common rail oil pipe 23, the electrode rod 11 comprises a cathode rod 18, one end of the cathode rod 18 is embedded into a liquid guide sleeve 16 in a nested manner and then is embedded into a cathode fixing seat 15, and the liquid guide sleeve 16 is provided with a liquid guide hole 16-1; the liquid guide sleeve 16 is made of insulating materials, and the liquid guide sleeve 16 cannot be processed after being electrified by electrolyte, so that the liquid guide sleeve 16 is damaged. The cathode fixing base 15 is made of metal material. The cathode fixing seat 15 is connected with the liquid guiding sleeve 16 through a fourth screw 22. The cathode fixing base 15 is provided with a fifth screw 21 for fixing one end of the cathode rod 18.

The positioning plate 2 is made of insulating materials, a plurality of insulating sleeves 19 are arranged on the positioning plate 2, a cathode head 20 is arranged at the top of each insulating sleeve 19, and the cathode head 20 abuts against or contacts with the cathode rod 18 after penetrating through an oil outlet of the high-pressure common rail oil pipe 23;

the anode head 9 and the cathode head 20 are used for clamping the cathode rod 18 and the high-pressure common rail oil pipe 23, so that burrs between intersecting inner holes of the high-pressure common rail oil pipe 23 can be removed conveniently by an ECM electrode deburring mode, and the high-pressure common rail oil pipe 23 is made of metal, such as a stainless steel pipe.

Preferably, the side of the liquid guiding sleeve 16, which is away from the cathode fixing seat 15, is provided with an O-shaped rubber sealing ring 17, and the O-shaped rubber sealing ring 17 corresponds to the end part of the high-pressure common rail oil pipe 23. When the cathode rod 18 is embedded in the high-pressure common rail oil pipe 23, the end part of the high-pressure common rail oil pipe 23 is sealed by the liquid guide sleeve 16 through the O-shaped rubber sealing ring 17, so that electrolyte (such as water) can flow into the high-pressure common rail oil pipe 23 smoothly after flowing in from the liquid guide hole 16-1, and the electrolyte is filled in gaps among the cathode rod 18, the inner side wall of the high-pressure common rail oil pipe 23, the oil outlet and the cathode head 20 and used for deburring the inside of the high-pressure common rail oil pipe 23, particularly deburring at the joint (namely, a cross inner hole) between the inside of the high-pressure common rail oil pipe 23 and the oil outlet, and excessive round corners are formed at the cross positions, so that the deburring effect is achieved.

Preferably, the outer side of the cathode rod 18 is provided with an insulating sleeve 19 and conductive points corresponding to the cathode head 20. The conducting points are used for discharging, the insulating sleeve 19 prevents the cathode rod 18 from discharging in a large area in the high-pressure common rail oil pipe 23, electrolyte is prevented from processing the inner side wall of the high-pressure common rail oil pipe 23, the cathode rod 18 is only discharged at the conducting points, and burrs are removed at the intersecting positions corresponding to intersecting inner holes of the high-pressure common rail oil pipe 23.

The positioning plate 2 is also provided with a cathode conductive seat 3 for electrifying a cathode, the cathode conductive seat 3 is made of metal materials, and a notch 14 is arranged between the cathode conductive seat 3 and a cathode fixing seat 15; an anode mounting plate 6 for mounting the anode plate 8 is arranged above the notch 14, a cathode positioning block 5 is arranged at the bottom of the anode mounting plate 6, for example, the anode mounting plate 6 is connected with the cathode positioning block 5 through a second screw 7, the cathode positioning block 5 is made of metal materials, and the cathode positioning block 5 is matched with the notch 14; when the cathode positioning block 5 is embedded into the notch part 14, a cathode is electrified, burrs between intersecting inner holes of the high-pressure common rail oil pipe 23 can be removed, and when the cathode positioning block 5 is separated from the notch part 14, the cathode is powered off, so that an operator can conveniently and safely take the high-pressure common rail oil pipe 23 from a clamp or place the high-pressure common rail oil pipe 23 on the clamp. The anode mounting plate 6 is made of an insulating material.

Preferably, the notch 14 is wedge-shaped, and the bottom of the cathode positioning block 5 is wedge-shaped; in the downward moving process of the cathode positioning block 5, the notch 14 is in continuous tight contact with the cathode positioning block 5, and tight contact is realized between the notch and the cathode positioning block, namely, contact between the cathode conductive seat 3 and the cathode positioning block 5 and contact between the cathode positioning block 5 and the cathode positioning block 15 are realized, the cathode conductive seat 3 is communicated with an electrolysis power supply, and the cathode positioning block 5, the cathode positioning block 15, the cathode rod 18 and the cathode head 20 are electrified in sequence. The design can effectively avoid generating gaps between the cathode conductive seat 3 and the cathode positioning block 5 and/or generating gaps between the cathode positioning block 5 and the cathode fixing seat 15, and avoid generating virtual connection discharge.

The cathode conductive seat 3 is provided with the first screw 4, the first screw 4 is screwed to help make up the gap between the cathode conductive seat 3 and the cathode positioning block 5, the cathode conductive seat 3 and the cathode positioning block 5 can be electrified through the first screw 4, and meanwhile, the first screw 4 can be screwed to tightly press the cathode positioning block 5 and the cathode fixing seat 15, that is, the first screw 4 is used for adjusting the position of the cathode positioning block 5.

Preferably, the cathode conductive seat 3 is in a U shape, and a notch 14 is formed between the U-shaped concave part and the cathode fixing seat 15. The U-shaped design of the cathode conductive seat 3 increases the contact area between the cathode conductive seat 3 and the cathode positioning block 5, and improves the electrifying efficiency between the cathode conductive seat 3 and the cathode positioning block 5.

The locating plate 2 is provided with a locating pin 10 for locating the high-pressure common rail oil pipe 23, and the locating pin 10 is matched with a bracket hole of the high-pressure common rail oil pipe 23. The high-pressure common rail oil pipe 23 is provided with a bracket, and the bracket is provided with bracket holes. Before the high-pressure common rail oil pipe 23 is installed, the locating pin 10 is embedded into the bracket hole corresponding to the bracket hole by the locating pin 10, so that the high-pressure common rail oil pipe 23 is located, the accurate position of the high-pressure common rail oil pipe 23 is ensured, and the cathode head 20 can be accurately embedded into the oil outlet of the high-pressure common rail oil pipe 23 and offset with the conductive point on the cathode rod 18.

The fixture further comprises a bottom plate 1, wherein the bottom plate 1 is made of an insulating material, the positioning plate 2 is connected to the bottom plate 1, for example, the positioning plate 2 is connected with the bottom plate 1 through a third screw 12, a cylindrical pin 13 used for positioning the positioning plate 2 is arranged on the bottom plate 1, the position of the positioning plate 2 is prevented from being deviated, and the position accuracy of the cathode fixing seat 15 is further ensured when the electrode rod 11 is embedded into the high-pressure common rail oil pipe 23 and is placed on the positioning plate 2.

The fixture further comprises an upper moving plate 28, a lower fixed large floor 25, an upper fixed large floor 31, a lifting plate 29 and a guide post 27, wherein an air cylinder pull rod 32 and a connecting rod 30 are arranged at the bottom of the upper fixed large floor 31, the air cylinder pull rod 32 is connected with the lifting plate 29, the lifting plate 29 is movably connected with the connecting rod 30, and the lifting plate 29 moves up and down along the connecting rod 30 under the drive of the air cylinder pull rod 32; the pneumatic element includes a cylinder tie rod 32.

The lifting plate 29 is connected with the upper moving plate 28 through a movable connecting rod, the upper moving plate 28 is movably connected with the guide post 27, the upper moving plate 28 moves up and down along the guide post 27 under the drive of the lifting plate 29, and the upper moving plate 28 and the guide post 27 are provided with an upper guide sleeve 27-1.

The bottom of the guide pillar is connected with the lower fixed large floor 25, the lower fixed large floor 25 is connected with the machine tool workbench 24, for example, the lower fixed large floor 25 and the machine tool workbench 24 are connected and fixed through guide pillar fixing screws 33. The upper moving plate 28 is made of an insulating material.

The anode mounting plate 6 and the anode plate 8 are connected to the bottom of the upper moving plate 28, and the upper moving plate 28 moves up and down along the guide post 27 by a pneumatic element (such as a cylinder) to clamp or release the anode head 9 and the cathode head 20 from the cathode rod 18 and the high-pressure common rail oil pipe 23.

Firstly, the upper moving plate 28 is moved upwards with the anode mounting plate 6 and the anode plate 8 (actually, the lifting plate 31 is driven by the cylinder pull rod 32 to move upwards along the connecting rod 30, the lifting plate 31 drives the upper moving plate 28 to move upwards along the guide post 27), then the cathode rod 18 of the electrode rod 11 is inserted into the high-pressure common rail oil pipe 23, the bracket hole of the high-pressure common rail oil pipe 23 is aligned with the positioning pin 10 and is placed on the positioning plate 2, at the moment, the cathode fixing seat 15 corresponds to the notch 14, and the cathode head 20 is embedded into the oil outlet hole of the high-pressure common rail oil pipe 23; then the upper moving plate is moved downwards by a pneumatic element (actually, the lifting plate 31 is driven by the cylinder pull rod 32 to move downwards along the connecting rod 30, the lifting plate 31 drives the upper moving plate 28 to move downwards along the guide post 27), the anode mounting plate 6 and the anode plate 8 are driven to move downwards until the anode head 9 abuts against the high-pressure common rail oil pipe 23, the cathode head 20 abuts against the cathode rod 18, the cathode positioning block 5 is embedded into the notch part 14, finally, the anode plate 8 and the cathode conducting seat 3 are respectively connected with an electrolysis power supply (generally 10-24V and not shown in the drawing), at the moment, the anode is contacted with the high-pressure common rail oil pipe 23 by the anode head 9, the anode circuit is connected, the cathode is connected with the cathode head 20 (at the moment, the cathode conducting seat 3, the cathode positioning block 5, the cathode fixing block and the cathode rod 18 are sequentially electrified), and burrs at the intersecting position are dissolved by electrolyte (such as water or electrolyte sodium nitrate), so that the burr removing effect is achieved.

For example, the high-pressure common rail 23 can be selected as the anode, and the gap between the high-pressure common rail 23 and the cathode rod 18 and the cathode head 20 is kept small, which is called a machining gap, for example, the gap is 0.3mm, and the electrolyte is discharged from the machining roomThe gap is continuously flown at high speed (6-30 m/s) to ensure that heat generated by anode dissolution products and electrolysis current passing through the electrolyte is carried away and depolarized. The anode and cathode rod 18 of the high-pressure common rail oil pipe 23 and the cathode of the cathode head 20 are respectively connected with an electrolysis power supply (generally 10-24V), so that the current density through the machining gap of the two electrodes is as high as 10-100A- _cm2 The number is subjected to burr decomposition.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes using the descriptions and drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the utility model.

Claims (10)

1. A frock clamp for high pressure common rail oil pipe ECM electrode burring, its characterized in that: the tool clamp comprises a clamping device, a clamping device and a clamping device,

an anode head (9) for contacting the high-pressure common rail oil pipe (23), wherein the anode head (9) is connected to the anode plate (8);

the electrode rod (11) is used for being embedded into the high-pressure common rail oil pipe (23), the electrode rod (11) comprises a cathode rod (18), one end of the cathode rod (18) is embedded into the cathode fixing seat (15) after being embedded with the liquid guide sleeve (16), and the liquid guide sleeve (16) is provided with a liquid guide hole (16-1);

the positioning plate (2), is equipped with a plurality of insulating sleeves (19) on the positioning plate (2), is equipped with the negative pole head (20) the top of insulating sleeve (19), and the negative pole head (20) offsets with negative pole (18) after penetrating the oil outlet of high-pressure common rail oil pipe (23);

the anode head (9) and the cathode head (20) are used for clamping the cathode rod (18) and the high-pressure common rail oil pipe (23).

2. The tooling fixture for deburring of the ECM electrode of the high-pressure common rail oil pipe according to claim 1, wherein: an O-shaped rubber sealing ring (17) is arranged on one side of the liquid guide sleeve (16) back to the cathode fixing seat (15), and the O-shaped rubber sealing ring (17) corresponds to the end part of the high-pressure common rail oil pipe (23).

3. The tooling fixture for deburring the ECM electrode of the high-pressure common rail oil pipe according to claim 2, wherein the tooling fixture is characterized in that: an insulating sleeve (19) and conductive points are arranged on the outer side surface of the cathode rod (18), and the conductive points correspond to the cathode head (20).

4. A tooling fixture for deburring high pressure common rail oil pipe ECM electrodes according to claim 3, wherein: a cathode conducting seat (3) is also arranged on the positioning plate (2), and a notch part (14) is arranged between the cathode conducting seat (3) and the cathode fixing seat (15);

an anode mounting plate (6) for mounting the anode plate (8) is arranged above the notch (14), a cathode positioning block (5) is arranged at the bottom of the anode mounting plate (6), and the cathode positioning block (5) is matched with the notch (14).

5. The tooling fixture for deburring the ECM electrode of the high-pressure common rail oil pipe according to claim 4, wherein: the notch part (14) is wedge-shaped, and the bottom of the cathode positioning block (5) is wedge-shaped.

6. The tooling fixture for deburring the ECM electrode of the high-pressure common rail oil pipe according to claim 5, wherein the tooling fixture is characterized in that: the cathode conductive seat (3) is U-shaped, and a notch part (14) is formed between the U-shaped concave part and the cathode fixing seat (15).

7. The tooling fixture for deburring the ECM electrode of the high-pressure common rail oil pipe according to claim 6, wherein: the tool clamp further comprises a bottom plate (1), wherein the positioning plate (2) is connected to the bottom plate (1), and cylindrical pins (13) used for positioning the positioning plate (2) are arranged on the bottom plate (1).

8. The tooling fixture for deburring the ECM electrode of the high-pressure common rail oil pipe according to claim 7, wherein: the locating plate (2) is provided with a locating pin (10) for locating the high-pressure common rail oil pipe (23), and the locating pin (10) is matched with a bracket hole of the high-pressure common rail oil pipe (23).

9. The tooling fixture for deburring the ECM electrode of the high-pressure common rail oil pipe according to claim 8, wherein the tooling fixture is characterized in that: the tool clamp further comprises an upper moving plate (28), a lower fixed large floor (25), an upper fixed large floor (31), a lifting plate (29) and a guide post (27), wherein an air cylinder pull rod (32) and a connecting rod (30) are arranged at the bottom of the upper fixed large floor (31), the air cylinder pull rod (32) is connected with the lifting plate (29), the lifting plate (29) is movably connected with the connecting rod (30), and the lifting plate (29) moves up and down along the connecting rod (30) under the driving of the air cylinder pull rod (32);

the lifting plate (29) is connected with the upper moving plate (28) through the movable connecting rod (26), the upper moving plate (28) is movably connected with the guide post (27), and the upper moving plate (28) moves up and down along the guide post (27) under the drive of the lifting plate (29);

the bottom of the guide post (27) is connected with a lower fixed large floor (25);

the anode mounting plate (6) and the anode plate (8) are connected to the bottom of the upper moving plate (28), and the upper moving plate (28) moves up and down to clamp or release the cathode rod (18) and the high-pressure common rail oil pipe (23) by the anode head (9) and the cathode head (20).

10. The tooling fixture for deburring the ECM electrode of the high-pressure common rail oil pipe according to claim 9, wherein: the liquid guide sleeve (16), the anode mounting plate (6), the upper moving plate (28), the positioning plate (2) and the bottom plate (1) are all made of insulating materials;

the cathode positioning block (5), the cathode conducting seat (3) and the cathode fixing seat (15) are all made of metal materials;

the anode mounting plate (6) is connected with the cathode positioning block (5) through a second screw (7);

the cathode conductive seat (3) is provided with a first screw (4);

the positioning plate (2) is connected with the bottom plate (1) through a third screw (12);

the cathode fixing seat (15) is connected with the liquid guide sleeve (16) through a fourth screw (22);

the cathode fixing seat (15) is provided with a fifth screw (21) for fixing one end of the cathode rod (18);

the pneumatic element is a cylinder;

the gap between the anode and the cathode rod (18) and the cathode head (20) of the high-pressure common rail oil pipe (23) is 0.3mm.