Efficient electric machining device with quick-change power transmission and liquid conveying functions

Abstract

The efficient electromachining device comprises a special cutter handle and a cutter main shaft, a protective cover is arranged on one side of the cutter main shaft, a collet chuck cover is arranged at the center of the protective cover, an electrode tube is arranged at the center of the collet chuck cover, an insulating plate is arranged on one side of the cutter main shaft, and the insulating plate is arranged on the other side of the cutter main shaft. A T-shaped support is arranged on the other side of the cutter spindle, a special cutter handle is arranged on one side of the insulating plate, a machine tool spindle is arranged on one side of the special cutter handle, a conductive plate is arranged on one side of the quick-change conductive connecting sleeve, a limiting block is arranged on one side of the conductive plate, and a second insulating plate is arranged on one side of the limiting block. Through the rapid liquid conveying device and the rapid power transmission device, the machine tool can automatically change tools in a short time and is electrified for electric arc machining, the rapid cooling and deslagging effect is achieved, and the service life of the electrode tube is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of high-efficiency electric machining devices, and more specifically, to a high-efficiency electric machining device with quick-change power and fluid transmission. Background Art

[0002] Electrolytic machining uses the anodic dissolution reaction of metal in an electrolyte to remove excess material from the workpiece and shape the parts. In theory, the tool electrode is wear-free and can be used for a long time. However, there are many factors that affect electrolytic machining, the equipment investment is high, and it is corrosive to the equipment.

[0003] After searching, the existing patent (publication number: CN218503832U) discloses a composite processing equipment for blade mortise and tenon, including a grinding body and a workpiece, the workpiece is placed under the grinding body, the side of the grinding body is fixedly connected to the slow grinding body, the outside of the slow grinding body is sleeved with a slow grinding wheel, the end of the slow grinding body away from the grinding body is connected to the slow grinding head handle, the outside of the slow grinding body is fixedly sleeved with a forming electrode, the inside of the forming electrode is provided with a grooved liquid separator ring, the side of the outside of the slow grinding body away from the grinding body is fixedly sleeved with a conductive transition disk, the side of the conductive transition disk close to the forming electrode is fixedly inlaid with a sealing ring, the side of the conductive transition disk close to the forming electrode is fixedly connected to the grinding body, by adopting a composite processing method and using strong liquid-punching electrospark grinding, the commonly used slow grinding rough processing process can be replaced, thereby further improving the material removal rate, improving production efficiency, and reducing production costs. In the process of realizing the present utility model, the inventor found that the existing technology has the following problems:

[0004] The conductive device and the infusion device of existing electromachining devices are separated, resulting in a complex structure and heavy weight. At the same time, the separation of the infusion device and the conductive device limits the capacity of the tool magazine and the automatic tool changing mechanism. The lack of an external cooling device causes the electrode temperature to be high, resulting in a short electrode service life.

[0005] Therefore, in order to solve the above problems, a high-efficiency electromachining device with quick-change power and fluid transmission is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-efficiency electric machining device with quick-change power and fluid transmission to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a high-efficiency electric machining device with quick-change power and fluid transmission, comprising a special tool holder and a tool spindle, a protective cover is provided on one side of the tool spindle, a collet cover is provided at the center of the protective cover, an electrode tube is provided at the center of the collet cover, an insulating plate is provided on one side of the tool spindle, a T-shaped support is provided on the other side of the tool spindle, a special tool holder is provided on one side of the insulating plate, a machine tool spindle is provided on one side of the special tool holder, a gasket is provided on one side of the T-shaped support, a nut is provided on one side of the gasket, a positioning block is provided on the side of the T-shaped support away from the gasket, a No. 2 hexagon socket screw is provided on one side of the positioning block, a quick-change conductive connecting sleeve is provided on the other side of the positioning block, a conductive plate is provided on one side of the quick-change conductive connecting sleeve, a No. 2 nut is provided on the outer wall of the conductive plate, a limiting block is provided on one side of the conductive plate, a No. 2 insulating plate is provided on one side of the limiting block, and a limiting seat is provided on one side of the No. 2 insulating plate.

[0008] Preferably, a spring chuck is provided on the outer wall of the electrode tube, a conductive copper sleeve is provided on one side of the spring chuck, and a locking nut is provided on one side of the conductive copper sleeve.

[0009] Preferably, a No. 1 spring is provided on one side of the interior of the quick-change conductive connecting sleeve, a protective copper sleeve is provided on one side of the No. 1 spring, a threaded stop pin is provided on one side of the protective copper sleeve, and a No. 4 sealing ring is provided at the connection between the quick-change conductive connecting sleeve and the conductive plate.

[0010] Preferably, an electrode sleeve is provided on the outer wall of the tool spindle, and a water cavity is provided inside the tool spindle, which is connected to the external water inlet through the internal channel of the electrode sleeve, T-shaped support, threaded stop pin, limit block and limit seat to form internal cooling.

[0011] Preferably, a skeleton sealing ring is provided on one side of the outer wall of the bearing, and a No. 1 hexagon socket screw is provided on one side of the skeleton sealing ring. There are two groups of No. 1 hexagon socket screws, and the two groups of No. 1 hexagon socket screws are symmetrically arranged along the main axis of the tool, and an insulating bushing is provided on the outer wall of the No. 1 hexagon socket screw.

[0012] Preferably, a No. 2 washer is provided on one side of the No. 1 hexagon socket screw, and the No. 2 washer enables the insulating bushing to be firmly set on the tool spindle.

[0013] Preferably, carbon brushes are evenly distributed around the circumference of the electrode holder sleeve, a spring retainer is provided on one side of the carbon brush, a No. 2 spring is provided inside the spring retainer, a round head hexagon socket screw is provided on one side of the No. 2 spring, a No. 3 nut is provided on one side of the spring retainer, and the No. 3 nut can fix the round head hexagon socket screw.

[0014] Preferably, a No. 1 sealing ring is provided on one side of the carbon brush, a No. 2 sealing ring is provided on one side of the No. 1 sealing ring, and a No. 3 sealing ring is provided on one side of the No. 2 sealing ring, so that the gap of the carbon brush is completely isolated from the outside world.

[0015] Technical effects and advantages of this utility model:

[0016] Compared with the existing technology, this high-efficiency electric machining device with quick-change power and fluid transmission enables the machine tool to automatically change tools and power on for arc machining in a short time through a rapid fluid transmission device and a rapid power transmission device. When the machine tool does not have central cooling, it can use external flushing fluid to pass through the flow channel for central cooling, thereby achieving the effect of rapid cooling and slag removal, and improving the life of the electrode tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the main structure of the utility model.

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the main body of the utility model.

[0020] Figure 4 It is a side view structural diagram of the main body of the utility model.

[0021] The accompanying drawings are marked as follows: 1. bearing; 2. skeleton sealing ring; 3. conductive copper sleeve; 4. anti-loosening nut; 5. spring chuck; 6. collet cover; 7. electrode tube; 8. T-type support; 9. gasket; 10. nut; 11. No. 1 sealing ring; 12. No. 2 sealing ring; 13. No. 3 sealing ring; 14. No. 2 insulating plate; 15. protective copper sleeve; 16. quick-change conductive connecting sleeve; 17. conductive plate; 18. limit block; 19. No. 4 sealing ring; 20. No. 1 spring; 2 1. Positioning block; 22. Insulating bushing; 23. No. 1 hexagon socket screw; 24. No. 2 hexagon socket screw; 25. No. 2 nut; 26. No. 2 gasket; 27. Electrode holder sleeve; 28. Tool spindle; 29. Carbon brush; 30. Spring retainer; 31. No. 3 nut; 32. No. 2 spring; 33. Round head hexagon socket screw; 34. Protective cover; 35. Special tool holder; 36. Insulating plate; 37. Threaded stop pin; 38. Machine tool spindle; 39. Limit seat. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] As attached Figures 1 to 4 The high-efficiency electric machining device with quick-change power and fluid transmission shown in the figure includes a special tool holder 35 and a tool spindle 28. A protective cover 34 is provided on one side of the tool spindle 28. The tool spindle 28 is installed with a bearing 1 and a skeleton sealing ring 2. An insulating plate 36 is installed between the tool spindle 28 and the special tool holder 35, which can seal the coolant and isolate the current. A collet cover 6 is provided at the center of the protective cover 34. The collet cover 6 is used to place a spring collet 5 to lock the spindle. An electrode tube 7 is provided at the center of the collet cover 6. The electrode tube 7 has a central liquid outlet and has good conductivity. Under specific working conditions, the cutting fluid can be discharged through the central hole of the electrode tube 7 to achieve Working position, in order to cool the electrode tube 7, remove the residue during processing, improve the processing accuracy and surface roughness, an insulating plate 36 is provided on one side of the tool spindle 28, and a T-shaped support 8 is provided on the other side of the tool spindle 28 to support the intermediate piece of the tool handle and the quick-change component, and the infusion channel. A special tool handle 35 is provided on one side of the insulating plate 36. The special tool handle 35 is a machine tool tool handle that can rotate at high speed. A machine tool spindle 38 is provided on one side of the special tool handle 35. The machine tool spindle 38 is the machine tool processing spindle and the core component of the machine tool. The connecting part of the special tool handle 35 adopts the standard installation size of the HSK tool handle, and an insulating plate 36 is installed above it to protect the machine tool spindle 38 from being conductive.

[0025] A gasket 9 is provided on one side of the T-shaped support 8, which plays a role in preventing loosening and protecting parts. A nut 10 is provided on one side of the gasket 9, and the threaded stop pin 37 is fixed by the nut 10. A positioning block 21 is provided on the side of the T-shaped support 8 away from the gasket 9. The positioning block 21 plays a role in blocking the tool handle shell from rotating after the tool is changed. A No. 2 hexagon socket screw 24 is provided on one side of the positioning block 21, and a quick-change conductive connecting sleeve 16 is provided on the other side of the positioning block 21. During the tool changing process, it plays a role in rapid power on and off. A conductive plate 17 is provided on one side of the quick-change conductive connecting sleeve 16. The conductive plate 17 serves to connect the electrodes and limit and fix. A No. 2 nut 25 is provided on the outer wall of the conductive plate 17. A limit block 18 is provided on one side of the conductive plate 17. The limit block 18 fixes the threaded stop pin when changing the tool. A No. 2 insulating plate 14 is provided on one side of the limit block 18. The No. 2 insulating plate 14 serves to cut off the current of the limit block 18 from reaching the machine tool spindle to prevent leakage.

[0026] A limit seat 39 is set on one side of the No. 2 insulating plate 14. The limit seat 39 is a base of a group of quick tool change parts. During the rotation of the main shaft, power is transmitted to the special tool holder 35, the tool spindle 28, the spring chuck 5, and the electrode tube 7 to achieve high-speed rotation processing. At the same time, the bearing 1 plays a role in synchronous rotation and keeps the threaded stop pin 37, the T-shaped support 8, the electrode seat sleeve 27, the carbon brush 29 and the conductive copper sleeve 3 relatively stationary. During the tool change process, the tool is inserted into the limit block 18 through the threaded stop pin 37, so that the quick-change conductive connecting sleeve 16 and the conductive plate 17 are tightly fitted, thereby ensuring the continuous input of external coolant and current, and achieving the purpose of quick-change power transmission and high-efficiency electrical processing.

[0027] Example 2

[0028] Based on Example 1, the solution in Example 1 is further detailed in combination with the following specific working methods. Figures 1 to 4 As shown, see the following description for details:

[0029] As a preferred embodiment, a spring chuck 5 is provided on the outer wall of the electrode tube 7, a conductive copper sleeve 3 is provided on one side of the spring chuck 5, and a lock nut 4 is provided on one side of the conductive copper sleeve 3. Furthermore, the spring chuck 5 can clamp the electrode tube 7, and the electrode tube 7 is clamped by the collet cover 6 and the spring chuck 5. The conductive copper sleeve 3 serves as a transition part connecting the tool spindle and the carbon brush, and plays a role in protecting wear and transmitting current.

[0030] As a preferred embodiment, a No. 1 spring 20 is provided on one side of the interior of the quick-change conductive connecting sleeve 16, a protective copper sleeve 15 is provided on one side of the No. 1 spring 20, a threaded stop pin 37 is provided on one side of the protective copper sleeve 15, and a No. 4 sealing ring 19 is provided at the connection between the quick-change conductive connecting sleeve 16 and the conductive plate 17. Furthermore, the angle of the threaded stop pin 37 guides and fixes the tool handle connecting cable part so that it does not rotate. The protective copper sleeve 15 protects the threaded stop pin 37 and the quick-change conductive connecting sleeve 16 from wear during plugging and unplugging, and also plays a conductive role.

[0031] As a preferred embodiment, the outer wall of the tool spindle 28 is provided with an electrode holder sleeve 27. A water chamber is provided within the tool spindle 28. This chamber is connected to the external water inlet through the internal passages of the electrode holder sleeve 27, T-shaped support 8, threaded stop pin 37, limit block 18, and limit seat 39, forming internal cooling. Furthermore, the bearing 1 rotates synchronously while maintaining the relative stationary state of the threaded stop pin 37, T-shaped support 8, electrode holder sleeve 27, carbon brush 29, and conductive copper sleeve 3. During tool changes, the tool is inserted into the limit block 18 via the threaded stop pin 37, allowing the quick-change conductive connection sleeve 16 and conductive plate 17 to fit tightly together, thereby ensuring continuous input of external coolant and current, achieving the purpose of quick-change power transmission and high-efficiency electromachining.

[0032] As a preferred embodiment, a skeleton seal ring 2 is provided on one side of the outer wall of the bearing 1. A No. 1 hexagon socket screw 23 is provided on one side of the skeleton seal ring 2. Two sets of No. 1 hexagon socket screws 23 are provided, and the two sets of No. 1 hexagon socket screws 23 are symmetrically arranged along the tool spindle 28. The outer wall of the No. 1 hexagon socket screw 23 is provided with an insulating bushing 22. Furthermore, the tool spindle 28 is installed with the bearing 1 and the skeleton seal ring 2. The skeleton seal ring 2 plays a sealing role, protecting the spindle center from water leakage. An insulating plate 36 is installed between the tool spindle 28 and the dedicated tool handle 30. It can seal the coolant and isolate the current.

[0033] As a preferred embodiment, a No. 2 gasket 26 is provided on one side of the No. 1 hexagon socket screw 23. The No. 2 gasket 26 enables the insulating bushing 22 to be firmly set on the tool spindle 28. Furthermore, the No. 1 hexagon socket screw 23 serves to fix the tool spindle 28 to the tool handle. At the same time, the insulating bushing 22 can isolate the screw current from the machine tool spindle to prevent leakage.

[0034] As a preferred embodiment, carbon brushes 29 are evenly distributed around the circumference of the electrode holder 27, a spring retainer 30 is provided on one side of the carbon brush 29, a No. 2 spring 32 is provided inside the spring retainer 30, a round head hexagon socket screw 33 is provided on one side of the No. 2 spring 32, and a No. 3 nut 31 is provided on one side of the spring retainer 30. The No. 3 nut 31 can fix the round head hexagon socket screw 33. Furthermore, the carbon brush 29 conducts current to the tool spindle 28, and the spring retainer 30 becomes a bracket for the carbon brush 29 through the built-in No. 2 spring 32, thereby limiting the carbon brush 29.

[0035] As a preferred embodiment, a No. 1 sealing ring 11 is provided on one side of the carbon brush 29, a No. 2 sealing ring 12 is provided on one side of the No. 1 sealing ring 11, and a No. 3 sealing ring 13 is provided on one side of the No. 2 sealing ring 12, so that the gap of the carbon brush 29 is completely isolated from the outside world. Furthermore, the three groups of sealing rings completely seal the arc-shaped gap around the carbon brush 29, thereby preventing water leakage.

[0036] The working process of the utility model is as follows: first, the mechanical arm of the machine tool automatically loads and unloads the tool handle part and the machine tool spindle part. The two parts are independent individuals. Then the special tool handle 35 cooperates with the tool spindle 28 to install the spring collet 5 and the nut 6 to clamp the electrode tube 7. A water chamber is provided in the tool spindle 28. The internal channel of the electrode seat sleeve 27, T-shaped support 8, threaded stop pin 37, limit block 18, and limit seat 39 is connected to the external water inlet to form internal cooling, so as to achieve the effect of rapid infusion, cooling and slag removal. At the same time, the connection part of the special tool handle 35 adopts the standard installation size of the HSK tool handle, and an insulating plate 36 is installed above it to protect the machine tool spindle 38 from being conductive. There are screws 23 and locking nuts 25 on the conductive plate 17 of the quick connection part to connect the cable, and there is an insulating block 14 between the limit seat 39 and the limit block 18 to isolate the machine tool from Conductive, when powered on, the current passes through the conductive plate 17 and is conducted to the quick-change conductive connecting sleeve 12, the copper sleeve 15, the threaded stop pin 37, the T-shaped support 8, the electrode seat sleeve 27, the carbon brush 29, the conductive copper sleeve 3, the tool spindle 28, the spring chuck 5 and finally to the electrode tube 7. The generated current is used for discharge machining. During the rotation of the spindle, the power is transmitted to the special tool holder 35, the tool spindle 28, the spring chuck 5 and the electrode tube 7 to achieve high-speed rotation machining. During the tool changing process, the tool is inserted into the limit block 18 through the threaded stop pin 37, so that the quick-change conductive connecting sleeve 16 and the conductive plate 17 fit tightly, thereby ensuring the continuous input of external coolant and current, and achieving the purpose of quick-change power transmission and infusion and efficient electrical machining. The above is the working principle of this kind of efficient electrical machining device with quick-change power transmission and infusion.

[0037] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-efficiency electromachining device with quick-change power and fluid transmission, comprising a dedicated tool holder (35) and a tool spindle (28), characterized in that: A protective cover (34) is provided on one side of the tool spindle (28), a collet cover (6) is provided at the center of the protective cover (34), an electrode tube (7) is provided at the center of the collet cover (6), an insulating plate (36) is provided on one side of the tool spindle (28), a T-shaped support (8) is provided on the other side of the tool spindle (28), a special tool handle (35) is provided on one side of the insulating plate (36), a machine tool spindle (38) is provided on one side of the special tool handle (35), a gasket (9) is provided on one side of the T-shaped support (8), a nut (10) is provided on one side of the gasket (9), and the A positioning block (21) is provided on one side of the T-shaped support (8) away from the gasket (9), a No. 2 hexagon socket screw (24) is provided on one side of the positioning block (21), a quick-change conductive connection sleeve (16) is provided on the other side of the positioning block (21), a conductive plate (17) is provided on one side of the quick-change conductive connection sleeve (16), a No. 2 nut (25) is provided on the outer wall of the conductive plate (17), a limiting block (18) is provided on one side of the conductive plate (17), a No. 2 insulating plate (14) is provided on one side of the limiting block (18), and a limiting seat (39) is provided on one side of the No. 2 insulating plate (14).

2. The high-efficiency electromachining device with quick-change power and fluid transmission according to claim 1, characterized in that: The outer wall of the electrode tube (7) is provided with a spring chuck (5), one side of the spring chuck (5) is provided with a conductive copper sleeve (3), and one side of the conductive copper sleeve (3) is provided with a locking nut (4).

3. The high-efficiency electromachining device with quick-change power and fluid transmission according to claim 1, characterized in that: A No. 1 spring (20) is provided on one side of the interior of the quick-change conductive connection sleeve (16), a protective copper sleeve (15) is provided on one side of the No. 1 spring (20), a threaded stop pin (37) is provided on one side of the protective copper sleeve (15), and a No. 4 sealing ring (19) is provided at the connection between the quick-change conductive connection sleeve (16) and the conductive plate (17).

4. The high-efficiency electromachining device with quick-change power and fluid transmission according to claim 3, characterized in that: The outer wall of the tool spindle (28) is provided with an electrode seat sleeve (27), and a water cavity is provided in the tool spindle (28). The water cavity is connected to an external water inlet through an internal channel of the electrode seat sleeve (27), a T-shaped support (8), a threaded stop pin (37), a limit block (18) and a limit seat (39) to form internal cooling.

5. The high-efficiency electromachining device with quick-change power and fluid transmission according to claim 1, characterized in that: A bearing (1) is provided on one side of the tool spindle (28), a skeleton sealing ring (2) is provided on one side of the outer wall of the bearing (1), a No. 1 hexagon socket screw (23) is provided on one side of the skeleton sealing ring (2), two groups of the No. 1 hexagon socket screws (23) are provided, and the two groups of the No. 1 hexagon socket screws (23) are symmetrically arranged along the tool spindle (28), and an insulating bushing (22) is provided on the outer wall of the No. 1 hexagon socket screw (23).

6. The high-efficiency electromachining device with quick-change power and fluid transmission according to claim 5, characterized in that: A No. 2 washer (26) is provided on one side of the No. 1 hexagon socket screw (23), and the No. 2 washer (26) enables the insulating bushing (22) to be stably arranged on the tool spindle (28).

7. The high-efficiency electromachining device with quick-change power and fluid transmission according to claim 4, characterized in that: Carbon brushes (29) are evenly distributed on the circumference of the electrode holder (27); a spring holder (30) is provided on one side of the carbon brush (29); a No. 2 spring (32) is provided inside the spring holder (30); a round head hexagon socket screw (33) is provided on one side of the No. 2 spring (32); a No. 3 nut (31) is provided on one side of the spring holder (30); and the No. 3 nut (31) is capable of fixing the round head hexagon socket screw (33).

8. The high-efficiency electromachining device with quick-change power and fluid transmission according to claim 7, characterized in that: A first sealing ring (11) is provided on one side of the carbon brush (29), a second sealing ring (12) is provided on one side of the first sealing ring (11), and a third sealing ring (13) is provided on one side of the second sealing ring (12), thereby completely isolating the gap of the carbon brush (29) from the outside world.

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