Wire threading and locking mechanism for automatically replacing electrode tube during electric spark perforation

Abstract

The utility model discloses an automatic electrode tube replacing and threading locking mechanism for electric spark perforation, which comprises a lock mouth compression spring, a rotating shaft bearing mounting seat, a pin shaft fixing ring and a lock mouth pressing sleeve, and the left side and the right side of the rotating shaft bearing mounting seat are respectively connected with a guide rod cylinder mounting seat and a guide rod cylinder. An air cylinder connecting plate is arranged below the rotating shaft bearing mounting seat, a copper pipe rotating shaft is arranged at the top of the air cylinder connecting plate in a penetrating mode through a bearing, the top end of the copper pipe rotating shaft extends to the position above the rotating shaft bearing mounting seat, and the bottom end of the copper pipe rotating shaft is connected with a rotary lifting sliding bearing; the rotary lifting sliding bearing is sleeved with a lock mouth lifting sleeve, and a pin shaft fixing ring is arranged in the lock mouth lifting sleeve. According to the technical scheme, the threading locking mechanism achieves locking of the copper pipe through cooperation of the two springs and the power air cylinder, the threading ejector pin is arranged above the water stop plug, the thin copper pipe can be driven to penetrate through the water stop plug, and normal operation of equipment is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of automated electrical discharge drilling equipment, and in particular to an automatic electrode tube threading and locking mechanism for electrical discharge drilling. Background Technology

[0002] An electrical discharge machining (EDM) drilling machine is a machine tool that uses the principle of electrical discharge machining to process holes smaller than 5mm. It is used for processing small and medium-sized punches and dies. Its processing characteristic is that it is not limited by the hardness of the metal material. The die can be hardened first, and then the machine can process the required hole shape to ensure quality and improve service life. Its structure requires a locking mechanism to lock the copper tube. To adapt to current structural requirements, the diameter of the holes needs to be smaller and smaller, and the diameter of the copper tube also needs to be smaller. During the operation of the equipment, the copper tube needs to pass through multiple components, including a water-stop plug. The water-stop plug only has one hole in the middle through which it can pass, and its overall sealing component is relatively compact. When the copper tube diameter is small and the overall material is soft, this can lead to situations where the copper tube cannot pass through the water-stop plug. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an automatic electrode changing and wire-threading locking mechanism for electric spark drilling, which enables thinner copper tubes (0.2-1.0mm) to pass through the water stop plug.

[0004] To achieve the above objectives, an automatic electrode changing and wire threading locking mechanism for EDM drilling is provided, comprising: a locking nozzle compression spring and a rotating shaft bearing mounting base, a pin fixing ring and a locking nozzle clamping sleeve. The left and right sides of the rotating shaft bearing mounting base are respectively connected to a guide rod cylinder mounting base and a guide rod cylinder. A cylinder connecting plate is provided at the lower part of the rotating shaft bearing mounting base, and a copper tube rotating shaft is threaded through a bearing at the top of the cylinder connecting plate. The top end of the copper tube rotating shaft extends above the rotating shaft bearing mounting base, and the bottom end of the copper tube rotating shaft is connected to a rotary lifting sliding bearing.

[0005] According to the aforementioned automatic electrode tube wire threading and locking mechanism for electrical discharge drilling, a locking nozzle lifting sleeve is sleeved around the rotating lifting sliding bearing, and a pin fixing ring is provided inside the locking nozzle lifting sleeve, with two pins connected to the bottom of the pin fixing ring.

[0006] According to the aforementioned automatic electrode tube wire threading and locking mechanism for electrical discharge drilling, a locking nozzle connecting shaft is provided below the pin fixing ring, and a second compression spring is provided on the outer sleeve of the pin, with the top and bottom ends of the second compression spring respectively connected to the top of the pin fixing ring and the top of the locking nozzle connecting shaft.

[0007] According to the aforementioned automatic electrode tube wire-threading and locking mechanism for electrical discharge drilling, a rotating shaft is provided below the locking nozzle connecting shaft, and a wire-threading pin is connected to the top of the rotating shaft connecting shaft.

[0008] According to the aforementioned automatic electrode tube changing and wire threading locking mechanism for electric spark drilling, a locking spring seat is provided on the outer sleeve of the rotating shaft connecting shaft, and a water-stop plug is provided inside the locking spring seat.

[0009] According to the aforementioned automatic electrode tube changing and wire threading locking mechanism for electric spark drilling, a locking nozzle compression sleeve is provided below the locking nozzle spring seat, and the top and bottom ends of the locking nozzle compression spring are respectively connected to the top of the locking nozzle compression sleeve and the bottom of the locking nozzle spring seat.

[0010] According to the aforementioned automatic electrode tube changing and wire threading locking mechanism for electric spark drilling, a locking nozzle is provided inside the locking nozzle clamping sleeve, and a locking nozzle clamping block is provided on the right side of the locking nozzle. A first compression spring is connected between the locking nozzle clamping block and the locking nozzle.

[0011] The above solution has at least one of the following beneficial effects: The wire-threading locking mechanism of this technical solution uses the cooperation of two springs and a power cylinder to lock the copper tube. By setting a wire-passing pin above the water stop plug, it can drive the thinner copper tube through the water stop plug, ensuring the normal operation of the equipment. The locking effect is increased by using two springs, and the addition of a pin enables the normal operation of copper tubes with a diameter of 0.2-1.0 mm, further ensuring the normal operation of the equipment.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is an exploded three-dimensional view of the present invention;

[0015] Figure 2 for Figure 1 Merged front-view stereoscopic view;

[0016] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure.

[0017] Legend:

[0018] 1. Locking nozzle compression spring; 2. Locking nozzle clamping sleeve; 3. Water stop plug; 4. Cylinder connecting plate; 5. Copper tube shaft; 6. Shaft bearing mounting seat; 7. Guide rod cylinder mounting seat; 8. Locking nozzle lifting sleeve; 9. Rotary lifting sliding bearing; 10. Guide rod cylinder; 11. Locking nozzle clamping block; 12. First compression spring; 13. Locking nozzle; 14. Shaft connecting shaft; 15. Thread guide pin; 16. Locking nozzle connecting shaft; 17. Pin retaining ring; 18. Pin; 19. Locking nozzle spring seat; 20. Second compression spring. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] Reference Figures 1 to 3 This utility model provides an automatic electrode tube threading and locking mechanism for EDM drilling, which includes a locking spring 1, a shaft bearing mounting seat 6, a pin fixing ring 17, and a locking sleeve 2. The left and right sides of the shaft bearing mounting seat 6 are respectively connected to a guide rod cylinder mounting seat 7 and a guide rod cylinder 10. A cylinder connecting plate 4 is provided at the bottom of the shaft bearing mounting seat 6, and a copper tube shaft 5 is threaded through the top of the cylinder connecting plate 4 via a bearing. The top end of the copper tube shaft 5 extends above the shaft bearing mounting seat 6, and the bottom end of the copper tube shaft 5 is connected to a rotary lifting sliding bearing 9.

[0021] A locking nozzle lifting sleeve 8 is fitted around a rotary lifting sliding bearing 9. A pin retaining ring 17 is installed inside the locking nozzle lifting sleeve 8, and two pins 18 are connected to the bottom of the pin retaining ring 17. A locking nozzle connecting shaft 16 is located below the pin retaining ring 17. A second compression spring 20 is fitted around the pins 18, with its top and bottom ends connected to the top of the pin retaining ring 17 and the top of the locking nozzle connecting shaft 16, respectively. This structure, using the cooperation of two springs and a power cylinder, achieves the locking of the copper tube. Furthermore, by installing a threaded pin above the water-stop plug, a thinner copper tube can be driven through the water-stop plug, ensuring the normal operation of the equipment.

[0022] A rotating shaft connecting shaft 14 is located below the locking nozzle connecting shaft 16, and a threaded ejector pin 15 is connected to the top of the rotating shaft connecting shaft 14. A locking nozzle spring seat 19 is fitted over the rotating shaft connecting shaft 14, and a water-stop plug 3 is installed inside the locking nozzle spring seat 19. A locking nozzle clamping sleeve 2 is located below the locking nozzle spring seat 19, and the top and bottom ends of the locking nozzle compression spring 1 are connected to the top of the locking nozzle clamping sleeve 2 and the bottom of the locking nozzle spring seat 19, respectively. A locking nozzle 13 is fitted inside the locking nozzle clamping sleeve 2, and a locking nozzle clamping block 11 is located on the right side of the locking nozzle 13. A first compression spring 12 is connected between the locking nozzle clamping block 11 and the locking nozzle 13. Through this structure, locking is achieved by two springs, which increases the locking effect. The addition of the ejector pin enables the normal operation of copper tubes with a diameter of 0.2-1.0 mm, further ensuring the normal operation of the equipment.

[0023] Working principle: This technical solution has a pipe in the middle for placing copper pipe. Spring 1 is used for vertical movement, and the first compression spring 12 is used for horizontal movement. When locked, both the locking spring 1 and the first compression spring 12 are in a compressed state, and the pipe is locked. When unlocked, the guide rod cylinder 10 works to drive the lower part to move downward. At this time, the locking spring 1 is in a stretched state, and the first compression spring 12, when located outside the lifting sleeve, will rebound, pushing out the locking clamp 11, so that the pipe is unobstructed. At the same time, a thread-passing pin 15 is provided. The thread-passing pin 15 is also a hollow structure with an interconnected head and pin body. The head is relatively thick and has threads around it for fixed installation. Since the mechanism moves up and down, the thread-passing pin 15 is relatively hard and can pass through the water stop plug 3. The copper pipe is guided by the thread-passing pin 15, passing through the hole in the middle of the thread-passing pin 15 to pass through the water stop plug 3.

[0024] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An automatic electrode tube changing and wire threading locking mechanism for electrical discharge machining (EDM) drilling, characterized in that, include: The lock mouth compression spring (1), the shaft bearing mounting seat (6), the pin fixing ring (17), and the lock mouth clamping sleeve (2) are provided. The left and right sides of the shaft bearing mounting seat (6) are respectively connected to the guide rod cylinder mounting seat (7) and the guide rod cylinder (10). The lower part of the shaft bearing mounting seat (6) is provided with a cylinder connecting plate (4), and the top of the cylinder connecting plate (4) is provided with a copper tube shaft (5) through a bearing. The top end of the copper tube shaft (5) extends to the top of the shaft bearing mounting seat (6), and the bottom end of the copper tube shaft (5) is connected to a rotary lifting sliding bearing (9). The lower part of the pin fixing ring (17) is provided with a... A locking mouth connecting shaft (16) is provided with a second compression spring (20) on the outer sleeve of the pin (18), and the top and bottom ends of the second compression spring (20) are respectively connected to the top of the pin fixing ring (17) and the top of the locking mouth connecting shaft (16). A rotating shaft connecting shaft (14) is provided below the locking mouth connecting shaft (16), and a threaded pin (15) is connected to the top of the rotating shaft connecting shaft (14). A locking mouth (13) is provided inside the locking mouth clamping sleeve (2), and a locking mouth clamping block (11) is provided on the right side of the locking mouth (13). A first compression spring (12) is connected between the locking mouth clamping block (11) and the locking mouth (13).

2. The automatic electrode changing and wire threading locking mechanism for EDM drilling according to claim 1, characterized in that, The rotary lifting sliding bearing (9) is fitted with a locking nozzle lifting sleeve (8), and a pin fixing ring (17) is provided inside the locking nozzle lifting sleeve (8), and two pins (18) are connected to the bottom of the pin fixing ring (17).

3. The automatic electrode changing tube wire threading and locking mechanism for electrical discharge drilling according to claim 2, characterized in that, The rotating shaft connecting shaft (14) is fitted with a locking spring seat (19), and a water stop plug (3) is provided inside the locking spring seat (19).

4. The automatic electrode changing tube wire threading and locking mechanism for electrical discharge drilling according to claim 3, characterized in that, A locking spring seat (19) is provided below a locking spring compression sleeve (2), and the top and bottom ends of the locking spring (1) are respectively connected to the top of the locking spring compression sleeve (2) and the bottom of the locking spring seat (19).

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