Cutting equipment for junction box cover production

By introducing vibration sensors and an automatic replacement system into the cutting equipment used in the production of junction box covers, the problems of overheating and decreased accuracy caused by drill bit wear have been solved. This has enabled automatic detection and efficient replacement of drill bits, improving the automation and service life of the equipment.

CN223545379UActive Publication Date: 2025-11-14TIELING BOYAN RUBBER & PLASTIC PROD
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Patent Information

Application Number
CN202423205534.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-11-14
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

The drill bits of existing junction box cover cutting equipment are prone to chip jamming after wear, leading to overheating and reduced machining accuracy, and replacing the drill bits is inconvenient.

Method used

A vibration sensor is used to monitor drill bit wear and automatically stop operation. The drill bit can be automatically replaced through the coordinated action of the lead screw, bracket, linkage rod and clamping mechanism. The threaded groove design and spring buffer plate prevent wear.

Benefits of technology

It enables automatic detection and replacement of drill bits, improves the automation level of the equipment, ensures the stability of drill bits and the efficiency and orderliness of the replacement process, and extends the service life of the equipment.

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Abstract

The utility model discloses cutting equipment for junction box cover production, which relates to the technical field of junction box cover production and cutting and comprises a cutting machine, a vibration sensor and a rotating frame are mounted on the cutting machine, the rotating frame is connected with a support, a driver is mounted on the support and connected with a lead screw, a support is arranged on the lead screw, and the lead screw is connected with a motor. The support is connected with a connecting rod and a linkage rod, the connecting rod is connected with a clamping mechanism, the connecting rod is further rotationally connected with a limiting rod, a threaded groove and a lifting cylinder are arranged in the lead screw, and the lifting cylinder is provided with a limiting block; when the vibration frequency of the drill bit is abnormal, automatic detection can be achieved through the vibration sensor, the clamping mechanism can accurately clamp the drill bit base through the lead screw, the support, the limiting rod, the connecting rod, the linkage rod and other components, and the threaded groove, the lifting cylinder and the limiting block are arranged to be matched with the clamping mechanism for linkage to achieve falling of the damaged drill bit and installation of a new drill bit.
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Description

Technical Field

[0001] This utility model relates to the field of junction box cover production and cutting technology, specifically a cutting device for junction box cover production. Background Technology

[0002] Junction boxes are widely used devices in electrical wiring systems. In electrical work, junction boxes provide a closed protective space for the connection points of wires, preventing the connection points from being exposed to the outside and avoiding corrosion from external factors (such as dust, moisture, corrosive gases, etc.), thus reducing the risk of line faults. In complex circuit wiring, it is often necessary to branch the line to connect different electrical appliances or lighting fixtures. For example, in a room with multiple sockets and lighting fixtures, junction boxes can be used to branch the main line to the lines of each socket and lighting fixture.

[0003] Junction box covers are an essential component of junction boxes. During the production of junction box covers, processes such as cutting, engraving, and drilling are required. Common cutting equipment uses drill bits with a fixed cutting depth, and the drill bit is kept on the same horizontal plane after cutting. The cut chips often get stuck in the chip groove of the drill bit. The drill bit will overheat under long-term load and is prone to wear, which will affect the processing accuracy of the junction box cover. Therefore, we propose a cutting equipment for the production of junction box covers. Utility Model Content

[0004] The purpose of this invention is to provide a cutting device for producing junction box covers, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cutting device for producing junction box covers, comprising a cutting machine, a vibration sensor fixedly installed on the drill bit seat of the cutting machine, a rotating frame fixedly installed on the base of the cutting machine, a support fixedly connected to the rotating frame, a driver fixedly installed on the support, a lead screw fixedly connected to the driver, the lead screw rotatably contacting a bracket, two connecting rods rotatably connected to the bracket, two linkage rods rotatably connected to the bracket, clamping mechanisms rotatably connected to the two connecting rods respectively, the two clamping mechanisms rotatably connected to the linkage rods respectively, limit rods rotatably connected to the two connecting rods respectively, and the two limit rods rotatably connected to the support. A threaded groove is also formed on the inner wall of the lead screw, a lifting cylinder is provided inside the lead screw, and a limit block is fixedly installed on the side wall of the lifting cylinder for sliding within the threaded groove.

[0006] Preferably, the rotation directions of the outer thread of the lead screw and the thread groove opened on the inner wall of the lead screw are opposite.

[0007] Preferably, the connecting rod and the linkage rod are of equal length and always remain parallel.

[0008] Preferably, the clamping mechanism includes a clamping rod, and the linkage rod and the connecting rod are rotatably connected to the clamping rod. The other end of the clamping rod is also fixedly connected to a clamping seat.

[0009] Preferably, the two clamps have grooves on their opposite sides, and the two grooves are used to clamp the drill bit holder together.

[0010] Preferably, a spring is fixedly connected to the inner wall of the lifting cylinder, and a buffer plate is fixedly connected to the spring. When installing the drill bit, the spring and the buffer plate are used to prevent the lifting cylinder from rising too high and causing mutual wear with the drill bit.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. When drill bit wear causes abnormal changes in vibration frequency, the vibration sensor monitors the process and automatically stops the drill bit in time, achieving automatic detection and replacement of the drill bit, with a high degree of automation.

[0013] 2. This utility model utilizes the synergistic effect of components such as lead screw, bracket, limiting rod, connecting rod and linkage rod to enable the clamping mechanism to accurately lock the drill bit seat between the grooves of the clamping seat, ensuring the stability of the drill bit seat during drill bit replacement.

[0014] 3. This utility model utilizes a special threaded groove design inside the lead screw to allow the lifting cylinder to drive the new drill bit upward during the rotation of the lead screw. This, combined with the rotating frame and clamping mechanism, enables the removal of the damaged drill bit and the installation of the new drill bit, making the drill replacement process efficient and orderly.

[0015] 4. This utility model is equipped with a spring and a buffer plate, which can relieve the squeezing pressure when the new drill bit presses against the top of the inner wall of the drill bit seat, avoid the drill bit and the drill bit seat from squeezing and wearing each other, and extend the service life of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall half-section structure of this utility model;

[0018] Figure 3 This is a partial half-section structural diagram of the present invention.

[0019] In the diagram: 1-Cut machine; 2-Support; 3-Driver; 4-Screw; 5-Bracket; 6-Connecting rod; 7-Linkage rod; 8-Clamping mechanism; 9-Limiting rod; 10-Threaded groove; 11-Lifting cylinder; 12-Limiting block; 13-Rotating frame; 14-Vibration sensor; 15-Spring; 16-Buffer plate; 81-Clamping rod; 82-Clamping seat; 83-Groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3This utility model provides a technical solution: a cutting device for producing junction box covers, including a cutting machine 1. A vibration sensor 14 is fixedly installed on the drill bit seat of the cutting machine 1. The vibration sensor 14 is used to monitor abnormal changes in the vibration frequency during operation after the drill bit is worn, thereby transmitting a signal, stopping the operation and automatically replacing the drill bit. A rotating frame 13 is fixedly installed on the base of the cutting machine 1. The rotating frame 13 has a drive rotation system. The output end of the rotating frame 13 can rotate. A support 2 is fixedly connected to the rotating frame 13. A driver 3 is fixedly installed on the support 2. The driver 3 is fixedly connected to a lead screw 4. The driver 3 is used to drive the lead screw 4 to rotate. A bracket 5 is provided on the lead screw 4. When the lead screw 4 rotates, the bracket 5 will move up and down. The bracket 5 is rotatably connected to two connecting rods 6. The bracket 5 is also rotatably connected to two linkage rods 7. The connecting rods 6 are rotatably connected to a clamping mechanism 8. The clamping mechanism 8 is also rotatably connected to the linkage rods 7. The clamping mechanism 8 includes a clamping rod 81. The linkage rods 7 and the connecting rods 6 are rotatably connected to the clamping rod 81. The other end of 81 is also fixedly connected to a clamping seat 82. Grooves 83 are provided on the opposite sides of both clamping seats 82. The two grooves 83 are used to jointly clamp the drill bit holder. The connecting rod 6 and the linkage rod 7 are of equal length and always remain parallel to ensure that the two grooves 83 always face each other. The connecting rod 6 is also rotatably connected to a limiting rod 9. Both limiting rods 9 are rotatably connected to the support 2. The limiting of the connecting rod 6 by the two limiting rods 9 is used to ensure that the two clamping mechanisms 8 can approach each other. A screw thread is also provided on the inner wall of the lead screw 4. The screw 4 has a threaded groove 10 and a lifting cylinder 11 inside. The rotation direction of the outer thread of the screw 4 and the threaded groove 10 is opposite, which makes the movement direction of the bracket 5 and the lifting cylinder 11 opposite. A limit block 12 is fixedly installed on the side wall of the lifting cylinder 11. The limit block 12 is used to slide in the threaded groove 10. A spring 15 is fixedly connected to the inner wall of the lifting cylinder 11. A buffer plate 16 is fixedly connected to the spring 15. When installing the drill bit, the spring 15 and the buffer plate 16 are used to prevent the lifting cylinder 11 from rising too high and causing mutual wear with the drill bit.

[0022] Working principle: When the drill bit of the cutting machine 1 wears down, the vibration sensor 14 detects an abnormal change in the vibration frequency, which transmits an electrical signal to the control system. The drill bit stops working and resets to the standby position (directly above the lead screw 4). Then, the driver 3 drives the lead screw 4 to rotate, causing the bracket 5 to move downward. At this time, under the restriction of the limit rod 9, the two connecting rods 6 and the linkage rod 7 are rotated by force, which then pushes the two clamping mechanisms 8 closer to each other until the drill bit seat is tightly locked between the grooves 83 on the two clamps 82. While the lead screw 4 rotates, because the threaded groove 10 inside the lead screw 4 rotates in the opposite direction to the external thread, when the limit block 1... When the drill bit slides within the threaded groove 10 under force, the lifting cylinder 11 will move the new drill bit inside it upwards together. Then, the rotating frame 13 will drive the entire mechanism to rotate, and the clamp 82 will hold the drill bit holder to rotate. The buckle inside the drill bit holder will open, and the damaged drill bit will fall into the lifting cylinder 11. Then, the driver 3 will reverse to remove the damaged drill bit and replace it with a new drill bit in the lifting cylinder 11. Then, the driver 3 will rotate forward and repeat the above movement to send the new drill bit upwards into the drill bit holder. At this time, if the drill bit is pressed against the top of the inner wall of the drill bit holder, the spring 15 and the buffer plate 16 can relieve the squeezing pressure and prevent mutual squeezing and wear. Finally, the rotating frame 13 will reverse to tighten the drill bit holder.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cutting device for producing junction box covers, comprising a cutting machine (1), characterized in that: A vibration sensor (14) is fixedly installed on the drill bit seat of the cutting machine (1). A rotating frame (13) is fixedly installed on the base of the cutting machine (1). A support (2) is fixedly connected to the rotating frame (13). A driver (3) is fixedly installed on the support (2). A lead screw (4) is fixedly connected to the driver (3). The lead screw (4) rotates and contacts a bracket (5). Two connecting rods (6) are rotatably connected to the bracket (5). Two linkage rods (7) are also rotatably connected to the bracket (5). The connecting rod (6) is rotatably connected to a clamping mechanism (8), which is also rotatably connected to a linkage rod (7). The connecting rod (6) is also rotatably connected to a limiting rod (9). Both limiting rods (9) are rotatably connected to a support (2). A threaded groove (10) is also provided on the inner wall of the lead screw (4). A lifting cylinder (11) is provided inside the lead screw (4). A limiting block (12) is fixedly installed on the side wall of the lifting cylinder (11). The limiting block (12) is used to slide in the threaded groove (10).

2. The cutting equipment for producing junction box covers according to claim 1, characterized in that: The rotation directions of the outer thread of the lead screw (4) and the threaded groove (10) opened on the inner wall of the lead screw (4) are opposite.

3. The cutting equipment for producing junction box covers according to claim 1, characterized in that: The connecting rod (6) and the linkage rod (7) are of equal length and always remain parallel.

4. The cutting equipment for producing junction box covers according to claim 1, characterized in that: The clamping mechanism (8) includes a clamping rod (81), and the linkage rod (7) and the connecting rod (6) are rotatably connected to the clamping rod (81). The other end of the clamping rod (81) is also fixedly connected to a clamping seat (82).

5. The cutting equipment for producing junction box covers according to claim 4, characterized in that: The two clamps (82) have grooves (83) on their opposite sides, and the two grooves (83) are used to clamp the drill bit seat together.

6. The cutting equipment for producing junction box covers according to claim 1, characterized in that: A spring (15) is fixedly connected to the inner wall of the lifting cylinder (11), and a buffer plate (16) is fixedly connected to the spring (15). When installing the drill bit, the spring (15) and the buffer plate (16) are used to prevent the lifting cylinder (11) from rising too high and causing mutual wear with the drill bit.