A special fixture for oil cup

Abstract

A kind of special fixture of oil cup, including square seat fixed on machine tool, the center position of which is provided with round hole, sleeve is installed in round hole, the center position of sleeve is provided with open-top circular groove, cylinder seat is installed in circular groove, the top surface of cylinder seat is provided with swing oil cup seat by fastener, the inside of cylinder seat is provided with piston rod by No.2 seal ring and No.3 seal ring, piston rod extends swing oil cup seat, and locating core is installed in the head of piston rod, and locating core is matched with oil cup body butt joint;Oil cup body corresponds with the elastic cylinder clamp seat of swing oil cup seat, when fixed, oil cup body extends into the center hole of elastic cylinder clamp seat;No.1 air pipe interface and No.2 air pipe interface are installed on the outer side of square seat, the lower side of cylinder seat and the lower side of sleeve are provided with air hole, and air hole corresponds with No.1 air pipe interface and No.2 air pipe interface.Guarantee the effective and reliable clamping of oil cup, worker operation saves time and effort, greatly improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a special fixture for oil cups. Background Technology

[0002] Electrical discharge machining (EDM) utilizes pulsed spark discharge between the workpiece and the tool electrode to instantly generate high temperatures that locally melt and vaporize the workpiece material, thereby achieving the purpose of removal. Since EDM is a non-contact machining process, there is almost no cutting force or cutting heat, and the machinability is not directly related to the hardness of the workpiece. Therefore, it can machine very hard metals. If the part needs to be quenched, it can be quenched first, finished, and then EDM can be performed. This can avoid deformation and blockage of small holes caused by heat treatment. Therefore, EDM micro-hole machining is currently the most ideal method to solve the machining problems of nozzles in mid-to-high-end fuel injection parts.

[0003] In the existing technology, when machining oil cups, electrical discharge machining tools usually use ordinary general-purpose fixtures, and then the workers need to manually operate to complete the clamping and unclamping work. During use, improper clamping often occurs, which is not only time-consuming and labor-intensive, but also affects the product processing quality and reduces work efficiency. Utility Model Content

[0004] In response to the shortcomings of the existing production technology, the applicant provides a specially designed clamp for oil cups with a reasonable structure, which can facilitate the clamping of oil cups, ensure the effective and reliable clamping of oil cups, save time and effort for workers, and greatly improve work efficiency.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A special clamp for an oil cup includes a square base fixed to a machine tool. A circular hole is formed at the center of the square base. A sleeve is installed inside the circular hole via three No. 1 sealing rings. Above the center of the sleeve is a circular groove with an open top. A cylinder seat is installed inside the groove. A swing oil cup seat is installed on the top surface of the cylinder seat via fasteners. A piston rod is installed inside the cylinder seat via No. 2 and No. 3 sealing rings. The piston rod extends out of the swing oil cup seat, and a positioning core is installed at the head of the piston rod. The positioning core matches and mates with the oil cup body. The oil cup body corresponds to the elastic collet of the swing oil cup seat. When fixed, the oil cup body extends into the center hole of the elastic collet.

[0007] Two endotracheal inlets, No. 1 and No. 2, are installed on the outer side of the square base.

[0008] Vent holes are provided below the cylinder base and below the sleeve, and the vent holes correspond to the No. 1 air pipe interface and the No. 2 air pipe interface.

[0009] As a further improvement to the above technical solution:

[0010] The No. 1 and No. 2 tracheal inlets are located on adjacent walls of the square base, respectively.

[0011] The cylinder seat has a T-shaped cross-section.

[0012] The swing oil cup holder has an integrated structure.

[0013] The structure of the swing oil cup holder is as follows: it includes a chassis, a vertical rod is vertically arranged on the upper surface of the chassis, and an elastic collet seat is arranged on the top surface of the rod, with the oil cup body clamped in the middle of the elastic collet seat.

[0014] The chassis and cylinder base are connected by three adjusting screws, and the distance between the bottom surface of the chassis and the top surface of the cylinder base is 0.2mm.

[0015] The bottom of the chassis is provided with a downwardly extending protrusion, and the top surface of the cylinder seat is provided with a recess that matches the protrusion.

[0016] The central axis of the elastic collet seat is coaxial with the central axis of the positioning core.

[0017] The outer circumferential surface of the sleeve has three sealing grooves spaced apart from top to bottom.

[0018] The beneficial effects of this utility model are as follows:

[0019] This utility model has a compact and reasonable structure and is easy to operate. Through the cooperation of components such as cylinder seat, swing oil cup seat, sleeve, square seat, and positioning core, the clamping of the oil cup body can be easily completed. Moreover, only the air inlet and outlet of the air pipe interface need to be controlled to complete the quick and reliable clamping and disassembly of the oil cup body, saving time and effort, effectively helping to improve processing efficiency and processing quality. It is easy to use and has good practicality.

[0020] This utility model features a uniquely designed swing-type oil cup holder, which can swing to adjust its position and ensure reliable positioning. An elastic collet seat is arranged on the swing-type oil cup holder, and the central hole of the elastic collet seat clamps the oil cup body for stable clamping. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model (oil cup in place).

[0022] Figure 2 This is a schematic diagram of the structure of this utility model (piston rod in downward position).

[0023] Figure 3 This is a schematic diagram of the structure of this utility model (piston rod in the upward state).

[0024] Figure 4 This is an exploded view of the present invention.

[0025] Figure 5 This is a cross-sectional view of the present invention.

[0026] Figure 6 This is a schematic diagram of the structure of the oil cup holder of this utility model.

[0027] Figure 7 This is a structural schematic diagram of the oil cup holder of this utility model from another perspective.

[0028] The components include: 1. Oil cup body; 2. Swinging oil cup seat; 3. Positioning core; 4. Cylinder seat; 5. Sleeve; 6. Square seat; 7. No. 1 air pipe interface; 8. No. 2 air pipe interface; 9. Adjusting screw; 10. Piston rod; 11. No. 3 sealing ring; 12. No. 2 sealing ring; 13. No. 1 sealing ring;

[0029] 201. Elastic collet seat; 202. Upright pole; 203. Base; 204. Protrusion;

[0030] 601. Round hole. Detailed Implementation

[0031] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0032] like Figures 1-7 As shown, the oil cup fixture of this embodiment includes a square base 6 fixed on a machine tool. A circular hole 601 is opened at the center of the square base 6. A sleeve 5 is installed in the circular hole 601 through three No. 1 sealing rings 13. A circular groove with an open top is opened above the center of the sleeve 5. A cylinder seat 4 is installed in the circular groove. A swing oil cup seat 2 is installed on the top surface of the cylinder seat 4 through fasteners. A piston rod 10 is installed inside the cylinder seat 4 through No. 2 sealing rings 12 and No. 3 sealing rings 11. The piston rod 10 extends out of the swing oil cup seat 2, and a positioning core 3 is installed at the head of the piston rod 10. The positioning core 3 matches and docks with the oil cup body 1. The oil cup body 1 corresponds to the elastic collet seat 201 of the swing oil cup seat 2. When fixed, the oil cup body 1 extends into the center hole of the elastic collet seat 201.

[0033] A first tracheal inlet 7 and a second tracheal inlet 8 are installed on the outer side of the square base 6.

[0034] Vent holes are provided below the cylinder seat 4 and below the sleeve 5, and the vent holes correspond to the No. 1 air pipe interface 7 and the No. 2 air pipe interface 8.

[0035] The No. 1 tracheal inlet 7 and the No. 2 tracheal inlet 8 are located on the adjacent walls of the square base 6, respectively.

[0036] The cross-section of cylinder seat 4 has a T-shaped structure.

[0037] The swing oil cup holder 2 is an integral structure.

[0038] The structure of the swing oil cup holder 2 is as follows: it includes a base 203, a vertical rod 202 is vertically arranged on the upper surface of the base 203, and an elastic collet seat 201 is arranged on the top surface of the rod 202, with the oil cup body 1 clamped in the middle of the elastic collet seat 201.

[0039] The chassis 203 and the cylinder seat 4 are connected by three adjusting screws 9, and the distance between the bottom surface of the chassis 203 and the top surface of the cylinder seat 4 is 0.2mm.

[0040] The bottom of the chassis 203 is provided with a downwardly extending protrusion 204, and the top surface of the cylinder seat 4 is provided with a recess that matches the protrusion 204.

[0041] The central axis of the elastic collet seat 201 is coaxial with the central axis of the positioning core 3.

[0042] The outer circumferential surface of sleeve 5 has three sealing grooves spaced apart from top to bottom.

[0043] The specific structure and function of the oil cup clamp described in this utility model are as follows:

[0044] The main components include a square seat 6, with a circular hole 601 in the center. A sleeve 5 is installed within the circular hole 601 via three No. 1 sealing rings 13. A circular groove with an open top is located at the center of the sleeve 5, within which a cylinder seat 4 is installed. The cylinder seat 4 has a T-shaped cross-section. A piston rod 10 is installed within the cylinder seat 4 via two sealing rings (No. 2 sealing ring 12 and No. 3 sealing ring 11). A positioning core 3 is installed at the head of the piston rod 10. The positioning core 3 mates with the oil cup body 1. An oil cup holder is installed on the top surface of the cylinder seat 4 by fasteners. The swing oil cup holder 2 is an integral structure. The bottom of the swing oil cup holder 2 is provided with a base 203 of the same size as the cylinder seat 4. A vertical rod 202 is provided on the top surface of the base 203. An elastic collet seat 201 is provided on the top surface of the upright rod 202. The elastic collet seat 201 clamps the top of the oil cup body 1 in the middle, which can ensure the fixed center of the oil cup body 1. At the same time, the size of the opening can be adjusted according to different models of oil cups, making it flexible and convenient to use.

[0045] The outer side of the square seat 6 is equipped with a No. 1 air pipe interface 7 and a No. 2 air pipe interface 8. The installation direction of the No. 1 air pipe interface 7 and the No. 2 air pipe interface 8 is perpendicular in space. The external air source passes through the No. 1 air pipe interface 7 and the No. 2 air pipe interface 8 to the cylinder seat 4 and the piston rod 10, so that the piston rod 10 moves up and down relative to the cylinder seat 4.

[0046] In actual work process:

[0047] like Figures 1-3As shown, when it is necessary to pick up or put down the oil cup, air enters through the second air pipe interface 8 and exits through the first air pipe interface 7. At this time, the piston rod 10 is retracted, and the positioning core 3 is located on the upper surface of the base 203 of the swing oil cup seat 2. The oil cup body 1 to be processed is placed on the positioning core 3, and then air enters through the first air pipe interface 7 and exits through the second air pipe interface 8. The piston rod 10 pushes upward, pushing the oil cup body 1 into the middle of the elastic collet seat 201 for fixing. The next processing work can then be carried out. After processing is completed, the reverse action is performed to remove the processed oil cup body 1. Specifically:

[0048] Figure 1 In the oil cup loading and unloading state, air enters through the No. 2 air pipe interface 8 and exits through the No. 1 air pipe interface 7.

[0049] Figure 2 When the piston rod 10 is in the downward position, air enters through the second air pipe interface 8 and returns air through the first air pipe interface 7.

[0050] Figure 3 When the piston rod 10 is in the upward position, air enters through the first air pipe interface 7 and returns air through the second air pipe interface 8.

[0051] During use, you can switch back and forth according to the actual application scenario. In the actual clamping process, you can loosen the adjusting screw 9, and the entire swing oil cup seat 2 will swing within the cylinder seat 4 to adjust its appropriate position. Then tighten the adjusting screw 9. The overall adjustment is convenient and flexible.

[0052] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A special clamp for oil cups, characterized in that: The machine tool includes a square base (6) fixed on the machine tool. The square base (6) has a circular hole (601) at its center. A sleeve (5) is installed in the circular hole (601) through three No. 1 sealing rings (13). A circular groove with an open top is opened above the center of the sleeve (5). A cylinder seat (4) is installed in the circular groove. A swing oil cup seat (2) is installed on the top surface of the cylinder seat (4) through fasteners. A piston rod (10) is installed inside the cylinder seat (4) through No. 2 sealing rings (12) and No. 3 sealing rings (11). The piston rod (10) extends out of the swing oil cup seat (2). A positioning core (3) is installed at the head of the piston rod (10). The positioning core (3) matches and docks with the oil cup body (1). The oil cup body (1) corresponds to the elastic collet seat (201) of the swing oil cup seat (2). When fixed, the oil cup body (1) extends into the center hole of the elastic collet seat (201). A first air pipe interface (7) and a second air pipe interface (8) are installed on the outer side of the square seat (6). Vent holes are opened below the cylinder seat (4) and below the sleeve (5), and the vent holes correspond to the first air pipe interface (7) and the second air pipe interface (8).

2. The special clamp for oil cups as described in claim 1, characterized in that: The No. 1 tracheal inlet (7) and the No. 2 tracheal inlet (8) are located on the adjacent wall surfaces of the square base (6).

3. The special clamp for oil cups as described in claim 1, characterized in that: The cross-section of the cylinder seat (4) is T-shaped.

4. The special clamp for oil cups as described in claim 1, characterized in that: The swing oil cup holder (2) has an integral structure.

5. The special clamp for oil cups as described in claim 1, characterized in that: The structure of the swing oil cup holder (2) is as follows: it includes a chassis (203), a vertical rod (202) is vertically arranged on the upper surface of the chassis (203), an elastic collet seat (201) is arranged on the top surface of the vertical rod (202), and the oil cup body (1) is clamped in the middle of the elastic collet seat (201).

6. The special clamp for oil cups as described in claim 5, characterized in that: The chassis (203) and the cylinder seat (4) are connected by three adjusting screws (9), and the distance between the bottom surface of the chassis (203) and the top surface of the cylinder seat (4) is 0.2mm.

7. The special clamp for oil cups as described in claim 5, characterized in that: The bottom of the chassis (203) is provided with a downwardly extending protrusion (204), and the top surface of the cylinder seat (4) is provided with a recess that matches the protrusion (204).

8. The special clamp for oil cups as described in claim 5, characterized in that: The central axis of the elastic collet seat (201) is coaxial with the central axis of the positioning core (3).

9. The special clamp for oil cups as described in claim 1, characterized in that: The outer circumferential surface of the sleeve (5) has three sealing grooves spaced apart from top to bottom.

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