A short arm stretch spring without indentation forming device for high-end power equipment

Abstract

The utility model discloses a short arm tensile spring no -indentation forming device for high -end electric power equipment belongs to spring production machinery field, a short arm tensile spring no -indentation forming device for high -end electric power equipment, including pre -separation mechanism, the pre -separation mechanism is including forming box, the front end middle part of forming box is provided with the export, the last end of forming box is connected with pre -separation box, the inner end upside of pre -separation box is provided with ultrasonic vibrator, the lower end fixed connection of ultrasonic vibrator has connecting rod, the lower end fixed connection of connecting rod has vibrating knife, the inner end downside of pre -separation box is fixedly installed with base, the upper end middle part of base is provided with limit slot, and the upper end left and right sides of base are provided with rubber pad, this short arm tensile spring no -indentation forming device for high -end electric power equipment is through carrying out pre -separation to the programmatic forming replacement traditional cutter bending, avoids the stress concentration of mechanical damage, and promotes spring fatigue life.

Description

Technical Field

[0001] This utility model relates to the field of spring manufacturing machinery, and in particular to a non-marking forming device for short-arm tension springs used in high-end power equipment. Background Technology

[0002] Short-arm tension springs are often used as key components for internal conductive connections, mechanical transmission, or pressure compensation in equipment. If indentations or scratches are caused on their surface due to molding, it can easily lead to abnormal local current transmission resistance, causing contact heating problems and even affecting the insulation performance of the equipment. Insufficient arm length positioning accuracy will directly damage the internal mechanical fit tolerances of the equipment, resulting in transmission jamming and pressure compensation failure, thereby reducing the operational stability and reliability of high-end power equipment such as circuit breakers, transformers, and high-voltage control cabinets. Currently, the forming of short-arm tension springs for high-end power equipment generally adopts the traditional bending method with cutting tools, which easily leads to appearance defects such as indentations and scratches on the spring surface during the forming process. This affects the conductivity stability, mechanical load-bearing performance and service life of the spring in high-end power equipment. Therefore, we propose an indentation-free forming device for short-arm tension springs for high-end power equipment. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a non-marking forming device for short-arm tension springs for high-end power equipment. By using a curve gauge to wind the spring body, and combining the pre-separation of the first and second ends with a program-controlled pitch cutter, the semi-circular hook ring is formed in one step. The spring body winding and hook ring forming are carried out simultaneously, reducing intermediate transfer links and realizing continuous processing of raw materials to finished products with a single device.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A non-marking forming device for short-arm tension springs for high-end power equipment includes a control mechanism, a pre-separation mechanism is installed on the upper right side of the control mechanism, and a forming mechanism is installed on the upper left side of the control mechanism. The pre-separation mechanism includes a forming box with an outlet at the front center and a pre-separation box connected to the end of the forming box. An ultrasonic vibrator is installed on the upper inner side of the pre-separation box, and a connecting rod is fixedly connected to the lower end of the ultrasonic vibrator. A vibrating knife is fixedly connected to the lower end of the connecting rod. A base is fixedly installed on the lower inner side of the pre-separation box, with a limit groove at the upper center of the base and rubber pads on the left and right sides of the upper end of the base. Pre-separation is performed by using an ultrasonic vibrator, and the spring body is wound with a curve gauge. The pre-separation of the beginning and end is completed simultaneously by a program-controlled pitch knife, and then the semi-circular hook ring is formed in one step. The programmed forming replaces the traditional tool bending, avoiding stress concentration caused by mechanical damage and significantly improving the fatigue life of the spring.

[0005] Furthermore, the control mechanism includes a workbench, a control box is installed on the upper side of the workbench, laser displacement sensors are provided on the middle right side of the outer end of the control box and the middle upper end of the workbench, and a material bin is provided at the bottom front end of the workbench. By setting up laser displacement sensors to track the displacement of the spring processing process, the winding and hook-ring forming can be carried out simultaneously, thereby improving the production efficiency of the device.

[0006] Furthermore, the forming mechanism includes a working box, a support rod is fixedly installed at the end of the working box, a discharge port is provided at the middle of the front end of the working box, and a sliding groove is fixedly connected to the bottom of the front end of the working box. By setting the sliding groove, the processed spring is received and guided to roll into the hopper, so that the springs produced by the device are not easy to move around and are easy to collect, thus improving the convenience of the device during use.

[0007] Furthermore, the forming box is fixedly installed on the upper right side of the workbench. By setting the forming box together with the pre-separation box on the upper right side of the workbench, the raw materials can be pre-separated first, which facilitates the subsequent synchronous processing of the device and improves the production efficiency when the device is in use.

[0008] Furthermore, the work box is fixedly installed on the upper left side of the workbench.

[0009] Furthermore, the number of laser displacement sensors is two, and the two laser displacement sensors are installed vertically.

[0010] Furthermore, the outlet corresponds to the position of the support rod.

[0011] Furthermore, the position of the vibrating blade corresponds to that of the limiting groove, and the vibrating blade is adapted to the limiting groove.

[0012] In summary, this utility model has the following beneficial effects: 1. By setting up a laser displacement sensor to track the displacement of the spring processing, the winding and hook-ring forming can be carried out simultaneously, which improves the production efficiency of the device. By setting up an ultrasonic vibrator for pre-separation, the spring body is wound with a curve gauge, and the beginning and end are pre-separated by a program-controlled pitch cutter before the semi-circular hook-ring is formed in one step. The programmed forming replaces the traditional tool bending, avoiding stress concentration caused by mechanical damage and significantly improving the fatigue life of the spring. 2. By setting up a chute to receive the processed springs and guide them to roll into the hopper, the springs produced by the device are less likely to wander around and are easier to collect, which improves the convenience of using the device. By setting the forming box and the pre-separation box together on the upper right side of the workbench, the raw materials can be pre-separated first, which facilitates the subsequent synchronous processing of the device and improves the production efficiency of the device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure in this embodiment; Figure 2 This is a three-dimensional structural diagram of the control mechanism in this embodiment; Figure 3 This is a three-dimensional structural diagram of the pre-separation mechanism in this embodiment; Figure 4 This is a three-dimensional structural diagram of the molding mechanism in this embodiment; Figure 5 This is a partial disassembled three-dimensional structural diagram of the pre-separation mechanism in this embodiment.

[0014] In the diagram, 1. Control mechanism; 101. Workbench; 102. Control box; 103. Laser displacement sensor; 104. Material hopper; 2. Pre-separation mechanism; 201. Forming box; 202. Outlet; 203. Pre-separation box; 204. Ultrasonic vibrator; 205. Connecting rod; 206. Vibrating knife; 207. Base; 208. Limiting groove; 209. Rubber pad; 3. Forming mechanism; 301. Working box; 302. Support rod; 303. Discharge port; 304. Slide. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings.

[0016] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0017] Reference Figure 1-5 As shown, a non-marking molding device for short-arm tension springs for high-end power equipment is provided in a preferred embodiment of this utility model. It includes a control mechanism 1, a pre-separation mechanism 2 installed on the upper right side of the control mechanism 1, and a molding mechanism 3 installed on the upper left side of the control mechanism 1. The pre-separation mechanism 2 includes a forming box 201, with an outlet 202 located at the center of the front end of the forming box 201. A pre-separation box 203 is connected to the end of the forming box 201. An ultrasonic vibrator 204 is installed on the upper inner side of the pre-separation box 203. A connecting rod 205 is fixedly connected to the lower end of the ultrasonic vibrator 204, and a vibrating blade 206 is fixedly connected to the lower end of the connecting rod 205. A base 207 is fixedly installed on the lower inner side of the pre-separation box 203. A limit groove 208 is provided in the center of the upper end of the base 207. Rubber pads 209 are provided on both the left and right sides of the end. The outlet 202 corresponds to the position of the support rod 302. The vibrating knife 206 corresponds to the position of the limiting groove 208. The vibrating knife 206 and the limiting groove 208 are adapted to each other. The ultrasonic vibrator 204 is used for pre-separation. The spring body is wound with a curve gauge. The beginning and end are pre-separated by a program-controlled pitch knife and then the semi-circular hook ring is formed in one step. The programmed forming replaces the traditional tool bending, avoiding stress concentration caused by mechanical damage and significantly improving the fatigue life of the spring.

[0018] Reference Figure 1-2 As shown, the control mechanism 1 includes a workbench 101. A control box 102 is installed on the upper side of the workbench 101. Laser displacement sensors 103 are installed on the middle right side of the outer end of the control box 102 and the middle upper end of the workbench 101. A hopper 104 is installed at the bottom front end of the workbench 101. There are two laser displacement sensors 103 installed vertically. By setting the laser displacement sensors 103, the spring processing is tracked for displacement, thereby realizing the synchronous operation of winding and hook and ring forming, which improves the production efficiency of the device.

[0019] Reference Figure 1-4 As shown, the molding mechanism 3 includes a working box 301. A support rod 302 is fixedly installed at the end of the working box 301. A discharge port 303 is provided at the middle of the front end of the working box 301. A slide groove 304 is fixedly connected to the bottom of the front end of the working box 301. The working box 301 is fixedly installed on the upper left side of the worktable 101. The slide groove 304 is used to receive the processed springs and guide them to roll into the hopper 104, so that the springs produced by the device are not easy to move around and are easy to collect, thus improving the convenience of the device during use.

[0020] Reference Figure 2-3 As shown, the forming box 201 is fixedly installed on the upper right side of the workbench 101. By setting the forming box 201 together with the pre-separation box 203 on the upper right side of the workbench 101, the raw materials can be pre-separated first, which facilitates the subsequent synchronous processing of the device and improves the production efficiency when the device is in use.

[0021] Specific implementation process: The raw material first enters the forming box 201 located on the upper right side of the workbench 101. Inside the forming box 201, the spring body is wound using a curve gauge. Then, a program-controlled pitch cutter pre-separates the ends of the wound spring. Simultaneously, the ultrasonic vibrator 204 on the upper side of the pre-separation box 203 is activated, driving the vibrating cutter 206 at the lower end through the connecting rod 205. This, combined with the limiting groove 208, achieves precise pre-separation, avoiding mechanical damage caused by the bending of traditional cutters and reducing stress concentration. The rubber pads 209 on the left and right sides of the upper end of the base 207 provide buffer protection for the spring during the pre-separation process, further ensuring the spring forming quality. The laser displacement sensor 103 tracks the spring position in real time. Under the premise of data transfer, the spring after pre-separation is conveyed through the outlet 202 at the middle of the front end of the forming box 201 to the position of the support rod 302 at the end of the working box 301, so that the spring can be accurately transferred into the working box 301. The working box 301 completes the one-time forming of the spring semi-circular hook ring according to the synchronous signal fed back by the laser displacement sensor 103, realizing continuous synchronous processing and greatly improving production efficiency. After the hook ring is formed, the spring is discharged from the discharge port 303 at the middle of the front end of the working box 301 and falls into the slide groove 304 fixedly connected to the bottom of the front end of the working box 301. The slide groove 304 guides the spring to roll naturally through the inclined structure and finally collects it into the hopper 104, avoiding the spring from wandering around and making it easy to collect.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A non-marking forming device for short-arm tension springs used in high-end power equipment, characterized in that: It includes a control mechanism (1), a pre-separation mechanism (2) is installed on the upper right side of the control mechanism (1), and a forming mechanism (3) is installed on the upper left side of the control mechanism (1). The pre-separation mechanism (2) includes a molding box (201), an outlet (202) is provided at the middle of the front end of the molding box (201), a pre-separation box (203) is connected to the end of the molding box (201), an ultrasonic vibrator (204) is provided on the upper side of the inner end of the pre-separation box (203), a connecting rod (205) is fixedly connected to the lower end of the ultrasonic vibrator (204), a vibrating knife (206) is fixedly connected to the lower end of the connecting rod (205), a base (207) is fixedly installed on the lower side of the inner end of the pre-separation box (203), a limit groove (208) is provided at the middle of the upper end of the base (207), and rubber pads (209) are provided on the left and right sides of the upper end of the base (207).

2. The indentation-free forming device for short-arm tension springs for high-end power equipment according to claim 1, characterized in that: The control mechanism (1) includes a workbench (101), a control box (102) is installed on the upper side of the workbench (101), a laser displacement sensor (103) is provided on the middle right side of the outer end of the control box (102) and the middle upper end of the workbench (101), and a hopper (104) is provided at the bottom front end of the workbench (101).

3. The indentation-free forming device for short-arm tension springs for high-end power equipment according to claim 2, characterized in that: The forming mechanism (3) includes a working box (301), a support rod (302) is fixedly installed at the end of the working box (301), a discharge port (303) is provided at the middle of the front end of the working box (301), and a sliding groove (304) is fixedly connected to the bottom of the front end of the working box (301).

4. The indentation-free forming device for short-arm tension springs for high-end power equipment according to claim 2, characterized in that: The molding box (201) is fixedly installed on the upper right side of the workbench (101).

5. The indentation-free forming device for short-arm tension springs for high-end power equipment according to claim 3, characterized in that: The work box (301) is fixedly installed on the upper left side of the workbench (101).

6. The indentation-free forming device for short-arm tension springs for high-end power equipment according to claim 2, characterized in that: The number of laser displacement sensors (103) is two, and the two laser displacement sensors (103) are installed vertically.

7. The indentation-free forming device for short-arm tension springs for high-end power equipment according to claim 3, characterized in that: The outlet (202) corresponds to the position of the support rod (302).

8. The indentation-free forming device for short-arm tension springs for high-end power equipment according to claim 1, characterized in that: The position of the vibrating blade (206) corresponds to that of the limiting groove (208), and the vibrating blade (206) is adapted to the limiting groove (208).

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