A milling machine for processing vacuum circuit breakers

Abstract

This invention relates to the field of milling, and more particularly to a milling machine for processing vacuum circuit breakers. The machine includes a housing, with a servo slide fixedly mounted at the lower end of the housing. A support frame is fixedly mounted at the front end of the servo slide. Milling parts are mounted at both ends of the support frame. A connecting frame is fixedly mounted at the lower end of the support frame, and a concave pressure frame is fixedly mounted at the end of the connecting frame. A support platform is provided below the concave pressure frame, with its lower end fixed to the housing. A positioning post extends from the middle of the upper end of the support platform, and the positioning post is adapted to the size of the mounting hole of the workpiece. This invention facilitates milling, ensures stability during milling, and can simultaneously mill and trim the front and rear edges as well as the inner and outer edges of the workpiece, effectively improving milling efficiency.

Description

Technical Field

[0001] This invention relates to the field of milling, and more particularly to a milling machine for machining vacuum circuit breakers. Background Technology

[0002] An edge milling machine is a processing device used to mill and trim the edges of workpieces, thereby removing burrs and other imperfections. Some metal parts on vacuum circuit breakers, such as handles, are often edge-milled using an edge milling machine to ensure a smooth edge on the handgrip, preventing hand injuries during handling.

[0003] However, when existing milling machines are used to mill and trim the edges of workpieces, operators generally need to manually position and fix the workpiece. Milling can only be carried out after the workpiece is firmly fixed. This makes the milling process cumbersome and time-consuming, and makes edge milling and trimming inconvenient. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the prior art by proposing a milling machine for processing vacuum circuit breakers.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a milling machine for processing vacuum circuit breakers, comprising a housing, a servo slide fixedly installed at the lower end of the housing, a support frame fixedly installed at the front end of the servo slide, milling parts installed at both ends of the support frame, a connecting frame fixedly installed at the lower end of the support frame, a concave pressure frame fixedly installed at the end of the connecting frame, a support platform provided below the concave pressure frame, the lower end of the support platform being fixed to the housing, and a positioning post extending from the middle of the upper end of the support platform, the positioning post being adapted to the size of the mounting hole of the workpiece.

[0006] Preferably, the milling component includes a crossbeam fixedly installed at one end of the support frame. A support shaft is rotatably mounted through one end of the crossbeam. A lug is fixedly mounted on the lower part of the outer surface of the support shaft. A first cutter shaft is rotatably mounted through the end of the lug. A first milling cutter is coaxially fixedly mounted at the lower end of the first cutter shaft. A bending frame is rotatably mounted at the lower end of the support shaft. A second cutter shaft is rotatably mounted through the bending frame near its end. A second milling cutter is coaxially fixedly mounted at the lower end of the second cutter shaft.

[0007] Preferably, a pusher is slidably mounted on the other end of the support frame, a connecting rod is rotatably mounted on the upper end of the pusher, a pusher bracket extends from the upper edge of the outer surface of the support shaft, the end of the pusher bracket is rotatably connected to the end of the connecting rod, and two No. 3 cutter shafts are rotatably mounted through the lower end of the pusher frame, with No. 3 milling cutters coaxially fixedly mounted on the lower ends of the two No. 3 cutter shafts.

[0008] Preferably, a lever is fixedly installed at the upper end of the bending frame, a second magnet is fixedly installed on the lever, a positioning frame is fixedly installed through the middle of the connecting frame, a first magnet is fixedly installed at the end of the positioning frame, a standing frame is attracted to the first magnet, and the end of the standing frame is fixed to the bending frame.

[0009] Preferably, two guide rods are symmetrically fixedly installed at the rear end of the push frame, and guide sleeves are slidably installed on the outer surface of both guide rods. The rear end of the guide sleeves is fixed to the other end of the support frame.

[0010] Preferably, a second servo motor is fixedly installed on the lower side of the push frame, and the output end of the second servo motor is connected to the upper end of the two third cutter shafts by a second belt through a pulley.

[0011] Preferably, a No. 3 servo motor is fixedly installed at the end of the bending frame, and a No. 4 belt is connected to the No. 2 cutter shaft via a pulley at the output end of the No. 3 servo motor. The height of the positioning frame is higher than the height of the No. 3 servo motor. A No. 4 servo motor is fixedly installed in the middle of the bearing shaft, and a No. 3 belt is connected to the No. 1 cutter shaft via a pulley at the output end of the No. 4 servo motor. The height of the No. 4 servo motor is higher than the height of the positioning frame.

[0012] Preferably, a servo motor is fixedly installed at the other end of the cross frame. The output end of the servo motor extends through the upper end of the cross frame and is rotatably connected to the cross frame. A belt is connected between the output end of the servo motor and the bearing shaft via a pulley.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. Place the mounting end of the workpiece on the support platform, ensuring that the mounting hole of the workpiece is engaged with the positioning post. Then, as the servo slide moves the milling edge piece on the support frame downwards to mill and trim the edge of the workpiece, the concave pressure frame on the connecting frame will be moved downwards synchronously to press against the workpiece, thus securing the workpiece firmly on the support platform. This process does not require manual fixing by the operator, effectively facilitating milling. At the same time, the engagement of the positioning post and the mounting hole of the workpiece provides a limiting effect, ensuring that the workpiece will not rotate or shift during milling, effectively ensuring the stability of the milling process.

[0014] 2. The rotating bearing shaft drives the No. 1 milling cutter to rotate in a circular motion to mill and trim the inner edge of the circular hole in the workpiece's hand-held part. Simultaneously, the rotating bearing shaft also drives the feed bracket to rotate, which in turn moves the connecting rod, pushing the feed bracket to move laterally. At this time, the guide rod slides within the guide sleeve to guide the feed bracket. The laterally moving feed bracket then drives the two No. 3 milling cutters to move, milling and trimming the front and rear edges of the workpiece's hand-held part. When the bearing shaft rotates and aligns the No. 1 and No. 2 milling cutters, the lug on the bearing shaft attracts the No. 2 magnet on the feed holder. The bearing shaft then continues to drive the No. 1 milling cutter to rotate for milling. During this process, the feed holder, pushed by the lug, causes the bending frame to follow the bearing shaft. The first cutter rotates, causing the second cutter to rotate in a circle to mill and trim the outer edge of the workpiece's handle. When the first cutter rotates 180 degrees, the third cutter has just reached the end point of the front and rear edges of the workpiece. Then, the bearing shaft continues to drive the first and second cutters to rotate in a circle to mill the edges of the workpiece. At this time, the feed bracket, driven by the bearing shaft, will cause the feed frame to move in the opposite direction and reset, allowing the third cutter to leave the end point of the front and rear edges of the workpiece. This ensures that the second cutter will not be obstructed by the third cutter when milling to the end point of the outer edge of the workpiece. In this way, the front and rear edges as well as the inner and outer edges of the workpiece are milled and trimmed simultaneously, thereby shortening the milling time and improving the milling efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the servo slide of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of A in the middle; Figure 4 This is a schematic diagram of the second servo motor of the present invention; Figure 5 This is a schematic diagram of the guide sleeve of the present invention; Figure 6 This is a schematic diagram of the support frame of the present invention; Figure 7 This is a schematic diagram of the first servo motor of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of B in the middle; Figure 9 This is an exploded view of the workpiece and the positioning post of the present invention.

[0016] In the diagram: 1. Housing; 2. Workpiece; 3. Servo slide; 4. Support; 5. Positioning column; 6. Cross frame; 7. Bearing frame; 8. Belt No. 1; 9. Servo motor No. 1; 10. Positioning frame; 11. Bearing shaft; 12. Vertical frame; 13. Guide sleeve; 14. Milling cutter No. 1; 15. Milling cutter No. 2; 16. Milling cutter No. 3; 17. Concave pressure frame; 18. Belt No. 2; 19. Cutter shaft No. 3; 20. Servo motor No. 2; 21. Guide rod; 22. Push frame; 23. Connecting rod; 24. Push lever; 25. Magnet No. 1; 26. Connecting frame; 27. Servo motor No. 3; 28. Bending frame; 29. ​​Cutter shaft No. 1; 30. Servo motor No. 4; 31. Belt No. 3; 32. Lug; 33. Magnet No. 2; 34. Belt No. 4; 35. Cutter shaft No. 2; 36. Lever seat. Detailed Implementation

[0017] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0018] like Figures 1-9 The milling machine for processing vacuum circuit breakers shown includes a housing 1. A servo slide 3 is fixedly installed at the lower end of the housing 1. A support frame 7 is fixedly installed at the front end of the servo slide 3. The servo slide 3 controls the lifting and lowering of the support frame 7. Milling parts are installed at both ends of the support frame 7. A connecting frame 26 is fixedly installed at the lower end of the support frame 7. A concave pressure frame 17 is fixedly installed at the end of the connecting frame 26. The connecting frame 26 fixes the concave pressure frame 17. A support 4 is provided below the concave pressure frame 17. The lower end of the support 4 is fixed to the housing 1. The support 4 supports the workpiece 2. A positioning post 5 extends from the middle of the upper end of the support 4. The positioning post 5 is adapted to the size of the mounting hole of the workpiece 2 to ensure smooth insertion. The positioning post 5 can hold the workpiece... 2. Positioning: Align the center of the circular hole on the hand-held part of workpiece 2 with the bearing shaft 11. This ensures that workpiece 2 will not rotate or shift during milling. Place the mounting end of workpiece 2 on the support 4, while keeping the mounting hole of workpiece 2 engaged with the positioning post 5. Then, when the servo slide 3 moves the milling edge piece on the bearing frame 7 to mill and trim the edge of workpiece 2, the concave pressure frame 17 on the connecting frame 26 will move down synchronously to press on workpiece 2, thus pressing workpiece 2 firmly onto the support 4 and completing the fixation. This process does not require manual fixation by the operator, effectively facilitating milling. At the same time, with the positioning post 5 and the mounting hole of workpiece 2 engaging and limiting the movement, it ensures that workpiece 2 will not rotate or shift during milling, effectively ensuring the stability of milling.

[0019] The milling component includes a crossbeam 6 fixedly mounted at one end of a support frame 7. A support shaft 11 is rotatably mounted through one end of the crossbeam 6, which supports the support shaft 11. A lug 32 is fixedly mounted on the lower part of the outer surface of the support shaft 11. A first cutter shaft 29 is rotatably mounted through the end of the lug 32. The lug 32 supports the first cutter shaft 29 and pushes the shifter 36 to move. A first milling cutter 14 is coaxially fixedly mounted at the lower end of the first cutter shaft 29, which drives the first milling cutter 14 to rotate. A bending frame 28 is rotatably mounted at the lower end of the support shaft 11. A second cutter shaft 35 is rotatably mounted through the bending frame 28 near its end, which supports the second cutter shaft 35. A second milling cutter 15 is coaxially fixedly mounted at the lower end of the second cutter shaft 35, which drives the second milling cutter 15 to rotate.

[0020] A pusher frame 22 is slidably mounted on the other end of the support frame 7. A connecting rod 23 is rotatably mounted on the upper end of the pusher frame 22. A pusher lever 24 extends from the upper edge of the outer surface of the support shaft 11. The end of the pusher lever 24 is rotatably connected to the end of the connecting rod 23. The support shaft 11 drives the pusher lever 24 to rotate, which in turn drives the connecting rod 23 to move, thereby pushing the pusher frame 22 to move laterally. Two No. 3 cutter shafts 19 are rotatably mounted through the lower end of the pusher frame 22. The pusher frame 22 serves to support the No. 3 cutter shafts 19. A No. 3 milling cutter 16 is coaxially fixedly mounted on the lower end of each of the two No. 3 cutter shafts 19. The No. 3 cutter shafts 19 serve to drive the No. 3 milling cutter 16 to rotate.

[0021] A lever 36 is fixedly installed at the upper end of the bending frame 28. A second magnet 33 is fixedly installed on the lever 36. The second magnet 33 can attract the lever 36 and the lever ear 32 together, so that when the subsequent bearing shaft 11 reverses to drive the first milling cutter 14 to reset, the bending frame 28 can synchronously reverse to drive the second milling cutter 15 to reset. A positioning frame 10 is fixedly installed through the middle of the connecting frame 26. A first magnet 25 is fixedly installed at the end of the positioning frame 10. A vertical frame 12 is attracted to the first magnet 25. The end of the vertical frame 12 is connected to the bending frame 28. When the bearing shaft 11 starts to drive the first milling cutter 14 to rotate in a circular motion, the stand 12 will remain stationary under the attraction of the first magnet 25, thus keeping the bent frame 28 stationary. When the bearing shaft 11 reverses and drives the first milling cutter 14 to reset, the reversed stand 12 will press against the positioning frame 10, keeping the bent frame 28 stationary. At this time, the bearing shaft 11 continues to reverse, causing the latch 32 and latch seat 36 that are attracted together to separate, thus allowing the first milling cutter 14 and the second milling cutter 15 to reset to their original state, i.e., the misaligned state.

[0022] Two guide rods 21 are symmetrically fixedly installed at the rear end of the push frame 22. Guide sleeves 13 are slidably installed on the outer surface of both guide rods 21. The guide rods 21 and guide sleeves 13 serve to guide the push frame 22. The rear end of the guide sleeve 13 is fixed to the other end of the support frame 7. The rotating support shaft 11 can drive the first milling cutter 14 to rotate in a circle to mill and trim the inner edge of the circular hole of the hand-held part of the workpiece 2. At the same time, the rotating support shaft 11 will also drive the push lever 24 to rotate, which in turn drives the connecting rod 23 to move, so as to push the push frame 22 to move laterally. At this time, the guide rod 21 slides in the guide sleeve 13 to guide the push frame 22. The laterally moved push frame 22 drives the two third milling cutters 16 to move to mill and trim the front and rear edges of the hand-held part of the workpiece 2. When the rotation of the support shaft 11 drives the first milling cutter 14 and the second milling cutter 15 to align, the lug 32 on the support shaft 11 just attracts the second magnet 33 on the lever seat 36. At this time, the support... The carrier shaft 11 continues to drive the first milling cutter 14 to rotate for milling. During this process, the shifter 36, pushed by the shifter lug 32, drives the bending frame 28 to rotate synchronously with the carrier shaft 11, thereby driving the second milling cutter 15 to rotate in a circle to mill and trim the outer edge of the workpiece 2's hand-held part. When the first milling cutter 14 rotates 180 degrees in a circle, the third milling cutter 16 just reaches the end point of the front and rear edges of the workpiece 2. Subsequently, the carrier shaft 11 continues to drive the first milling cutter 14 and the second milling cutter 15 to rotate in a circle to mill the edge of the workpiece 2. At this time, the feed shifter 24, driven by the carrier shaft 11, drives the feeder 22 to move in the opposite direction and reset, allowing the third milling cutter 16 to leave the end point of the front and rear edges of the workpiece 2. This ensures that the second milling cutter 15 will not be obstructed by the third milling cutter 16 when milling to the end point of the outer edge of the workpiece 2. In this way, the front and rear edges as well as the inner and outer edges of the workpiece 2 are milled and trimmed at the same time to shorten the milling time and improve the milling efficiency.

[0023] A second servo motor 20 is fixedly installed on the lower side of the push frame 22. The output end of the second servo motor 20 is connected to the upper end of the two third cutter shafts 19 by a second belt 18 through a pulley. The second servo motor 20 can drive the two third cutter shafts 19 to rotate through the second belt 18.

[0024] A third servo motor 27 is fixedly installed at the end of the bending frame 28. The output end of the third servo motor 27 is connected to the second cutter shaft 35 via a pulley and a fourth belt 34. The third servo motor 27 can drive the second cutter shaft 35 to rotate via the fourth belt 34. The height of the positioning frame 10 is higher than the height of the third servo motor 27, which ensures that the third servo motor 27 will not be obstructed by the positioning frame 10 when it moves. A fourth servo motor 30 is fixedly installed in the middle of the bearing shaft 11. The output end of the fourth servo motor 30 is connected to the first cutter shaft 29 via a pulley and a third belt 31. The fourth servo motor 30 can drive the first cutter shaft 29 to rotate via the third belt 31. The height of the fourth servo motor 30 is higher than the height of the positioning frame 10, which ensures that the fourth servo motor 30 will not be obstructed when it moves.

[0025] A servo motor 9 is fixedly installed at the other end of the cross frame 6. The output end of the servo motor 9 extends through the upper end of the cross frame 6 and is rotatably connected to the cross frame 6. A belt 8 is connected between the output end of the servo motor 9 and the bearing shaft 11 via a pulley. The servo motor 9 can drive the bearing shaft 11 to rotate via the belt 8.

[0026] During milling, the mounting end of workpiece 2 is placed on support 4, while the mounting hole of workpiece 2 is kept in contact with the positioning pin 5 to position workpiece 2. The center of the circular hole on the hand-held part of workpiece 2 is aligned with the bearing shaft 11. Then, the servo slide 3 drives the bearing frame 7 to move down. At this time, the concave pressure frame 17 on the connecting frame 26 is driven to move down synchronously to press on workpiece 2, thus pressing workpiece 2 firmly on support 4 for fixation. At this time, the milling cutter is in contact with the edge of workpiece 2. Then, the first servo motor 9 drives the bearing shaft 11 to rotate via the first belt 8, thereby driving the first milling cutter. 14 rotates in a circular motion to mill and trim the inner edge of the circular hole in the hand-held part of workpiece 2. Simultaneously, the rotating bearing shaft 11 drives the feed bracket 24 to rotate, which in turn moves the connecting rod 23, pushing the feed frame 22 to move laterally. At this time, the guide rod 21 slides within the guide sleeve 13 to guide the feed frame 22. The laterally moving feed frame 22 then drives the two No. 3 milling cutters 16 to move, milling and trimming the front and rear edges of the hand-held part of workpiece 2. When the bearing shaft 11 rotates and aligns the No. 1 milling cutter 14 and the No. 2 milling cutter 15, the lug 32 on the bearing shaft 11 is just aligned. The first milling cutter 14 is attracted to the second magnet 33 on the dial holder 36. At this time, the bearing shaft 11 continues to drive the first milling cutter 14 to rotate for milling. During this process, the dial holder 36 is pushed by the dial lug 32, which drives the bending frame 28 to rotate synchronously with the bearing shaft 11, thereby driving the second milling cutter 15 to rotate in a circle to mill and trim the outer edge of the workpiece 2's hand. When the first milling cutter 14 has rotated 180 degrees in a circle, the third milling cutter 16 has just milled to the end point of the front and rear edges of the workpiece 2. Then, the bearing shaft 11 continues to drive the first milling cutter 14 and the second milling cutter 15 to rotate in a circle to mill and trim the workpiece. When the edge of workpiece 2 is milled, the feed bracket 24, driven by the bearing shaft 11, will drive the feed frame 22 to move in the opposite direction and reset, allowing the third milling cutter 16 to leave the end point of the front and rear edges of workpiece 2. This ensures that the subsequent second milling cutter 15 will not be obstructed by the third milling cutter 16 when milling to the end point of the outer edge of workpiece 2. In this way, the front and rear edges as well as the inner and outer edges of workpiece 2 are milled and trimmed at the same time to shorten the milling time and improve the milling efficiency. After the upper edge of workpiece 2 is milled and trimmed, workpiece 2 can be manually flipped over to mill and trim the lower edge of workpiece 2.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A milling machine for processing vacuum circuit breakers, comprising a housing (1), characterized in that: A servo slide (3) is fixedly installed at the lower end of the inner casing (1). A support frame (7) is fixedly installed at the front end of the servo slide (3). Milling parts are installed at both ends of the support frame (7). A connecting frame (26) is fixedly installed at the lower end of the support frame (7). A concave pressure frame (17) is fixedly installed at the end of the connecting frame (26). A support (4) is provided below the concave pressure frame (17). The lower end of the support (4) is fixed to the casing (1). A positioning post (5) extends from the middle of the upper end of the support (4). The positioning post (5) is adapted to the size of the mounting hole of the workpiece. The milling component includes a crossbar (6) fixedly installed at one end of a support frame (7). A support shaft (11) is rotatably mounted through one end of the crossbar (6). A lug (32) is fixedly mounted on the lower part of the outer surface of the support shaft (11). A first cutter shaft (29) is rotatably mounted through the end of the lug (32). A first milling cutter (14) is coaxially fixedly mounted on the lower end of the first cutter shaft (29). A bending frame (28) is rotatably mounted on the lower end of the support shaft (11). A second cutter shaft (35) is rotatably mounted through the bending frame (28) near its end. A second milling cutter (15) is coaxially fixedly mounted on the lower end of the second cutter shaft (35). The other end of the support frame (7) is slidably mounted with a pusher frame (22). The upper end of the pusher frame (22) is rotatably mounted with a connecting rod (23). The outer surface of the support shaft (11) extends with a pusher bracket (24). The end of the pusher bracket (24) is rotatably connected to the end of the connecting rod (23). The lower end of the pusher frame (22) is rotatably mounted with two No. 3 cutter shafts (19). The lower ends of the two No. 3 cutter shafts (19) are coaxially fixedly mounted with No. 3 milling cutters (16). A lever (36) is fixedly installed at the upper end of the bending frame (28), and a second magnet (33) is fixedly installed on the lever (36). A positioning frame (10) is fixedly installed through the middle of the connecting frame (26), and a first magnet (25) is fixedly installed at the end of the positioning frame (10). A standing frame (12) is attracted to the first magnet (25), and the end of the standing frame (12) is fixed to the bending frame (28).

2. The milling machine for processing vacuum circuit breakers according to claim 1, characterized in that: Two guide rods (21) are symmetrically fixedly installed at the rear end of the propulsion frame (22). Guide sleeves (13) are slidably installed on the outer surface of the two guide rods (21). The rear end of the guide sleeves (13) is fixed to the other end of the support frame (7).

3. The milling machine for processing vacuum circuit breakers according to claim 1, characterized in that: The second servo motor (20) is fixedly installed on the lower side of the push frame (22). The output end of the second servo motor (20) is connected to the upper end of the two third cutter shafts (19) by a second belt (18) through a pulley.

4. The milling machine for processing vacuum circuit breakers according to claim 1, characterized in that: The end of the bending frame (28) is fixedly installed with a No. 3 servo motor (27). The output end of the No. 3 servo motor (27) is connected to the No. 2 cutter shaft (35) by a No. 4 belt (34) through a pulley. The height of the positioning frame (10) is higher than the height of the No. 3 servo motor (27). The middle of the bearing shaft (11) is fixedly installed with a No. 4 servo motor (30). The output end of the No. 4 servo motor (30) is connected to the No. 1 cutter shaft (29) by a No. 3 belt (31) through a pulley. The height of the No. 4 servo motor (30) is higher than the height of the positioning frame (10).

5. A milling machine for processing vacuum circuit breakers according to claim 1, characterized in that: A servo motor (9) is fixedly installed at the other end of the cross frame (6). The output end of the servo motor (9) extends through the upper end of the cross frame (6). The output end of the servo motor (9) is rotatably connected to the cross frame (6). A belt (8) is connected between the output end of the servo motor (9) and the bearing shaft (11) via a pulley.

Images