Quenching equipment for machining cutting edges of pliers

By employing a precision positioning system with positioning slots and indicator lights on the quenching equipment used for machining pliers cutting edges, the problem of inaccurate clamping was solved, enabling precise quenching of pliers cutting edges and improving product consistency and production efficiency.

CN223837497UActive Publication Date: 2026-01-27XUZHOU WANZHUO HARDWARE TOOLS MANUFACTURING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520432850.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-01-27
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

Existing laser hardening equipment for pliers cutting edges suffers from inaccurate clamping and positioning, leading to deviations in the hardening area and making it difficult to ensure uniform hardening of all parts of the pliers cutting edge, thus affecting product consistency and production efficiency.

Method used

A quenching device for machining the cutting edge of pliers was designed. It adopts a precision positioning feedback system with equidistantly distributed positioning slots on the mounting column, touch switches, and indicator lights to ensure accurate positioning of the pliers. Precise quenching is achieved through the cooperation of an electric telescopic rod and a quenching laser head.

Benefits of technology

It improves the accuracy and consistency of quenching the cutting edge of pliers, reduces human error, increases product qualification rate and production efficiency, and is suitable for large-scale continuous production.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223837497U_ABST
    Figure CN223837497U_ABST
Patent Text Reader

Abstract

The utility model discloses quenching equipment for machining cutting edges of pliers, and relates to the field of machining of the cutting edges of the pliers. The quenching equipment for machining the cutting edge of the pliers comprises a base, and further comprises a mounting frame, a quenching device and a quenching device, the mounting column is mounted on the mounting frame; a plurality of positioning grooves used in cooperation with pliers handles are formed in the mounting column at equal intervals. The touch switch is fixedly connected in the positioning groove; according to the utility model, a precise positioning feedback system is constructed through the positioning groove which is formed in the mounting column and is matched with the handle of the plier and is matched with the touch switch and the indicator lamp, and the plier can be accurately guided to a preset position during each clamping, so that the deviation caused by manual operation or mechanical error is avoided, and the working efficiency is improved. The precision lays a solid foundation for a subsequent quenching process, so that a laser beam can accurately act on a cutting edge target area, non-uniform performance caused by quenching position deviation is avoided, and the consistency and qualified rate of products are greatly improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of pliers cutting edge processing technology, specifically, it relates to a quenching device for pliers cutting edge processing. Background Technology

[0002] In modern industrial manufacturing and daily life, pliers are an indispensable and commonly used tool, widely applied in many fields such as mechanical repair, electronic assembly, and construction. The quality of their cutting edges, such as hardness and wear resistance, directly determines the effectiveness and service life of the pliers. Therefore, high-quality quenching treatment of the pliers' cutting edges has become a key step in improving the quality of the pliers.

[0003] Currently, existing laser hardening equipment for pliers blades on the market has many problems that need to be solved in practical applications. Among them, the most prominent problem is the lack of precision in clamping and positioning. Traditional clamping methods often lack precise positioning structures, making it difficult to ensure that the pliers are in a stable and accurate position during the hardening process. This results in the laser beam being unable to accurately act on the predetermined area of ​​the pliers blade during the hardening operation, causing deviations in the hardening area and failing to guarantee that all parts of the blade can receive uniform and effective hardening treatment.

[0004] Because the quenching zone is difficult to control precisely, it directly leads to the problem of unstable quenching quality. Different batches, and even the same batch of pliers, have significant differences in the hardness, wear resistance, and other properties of the cutting edge after quenching, making it difficult to meet the market's strict requirements for high-quality products. In addition, this instability in quality increases the product defect rate and production costs, reducing the company's production efficiency and market competitiveness. In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a quenching device for machining the cutting edge of pliers that can overcome or at least partially solve the above problems.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: a quenching device for processing the cutting edge of pliers, including a base, and further including: a mounting frame, fixedly connected to the base; a mounting column, mounted on the mounting frame; multiple positioning slots for cooperating with the pliers handle are equidistantly opened on the mounting column; a touch switch, fixedly connected in the positioning slots; an indicator light electrically connected to the touch switch, fixedly installed on the mounting column near the positioning slots; a mounting plate, disposed at the upper end of the mounting frame; a quenching laser head, matching the position of the positioning slots, fixedly connected at equal intervals to the mounting plate; and an electric telescopic rod, fixedly connected to the mounting frame, the telescopic end of the electric telescopic rod being fixedly connected to the mounting plate.

[0007] To facilitate guidance and stability when the electric telescopic rod drives the mounting plate and the quenching laser head, ensuring precise movement of the quenching laser head and guaranteeing quenching quality, guide rods are symmetrically slidably connected to both sides of the electric telescopic rod on the mounting frame. The end of the guide rod closest to the quenching laser head is fixedly connected to the mounting plate.

[0008] To improve the efficiency of quenching the pliers blades, the mounting post is further defined as a polygonal rotating post, with positioning slots located on each face of the mounting post, and a drive mechanism for controlling the rotation of the mounting post is mounted on the mounting bracket.

[0009] Furthermore, the drive mechanism includes a drive shaft and a drive motor. The drive shaft is rotatably connected to the mounting bracket, the mounting column is fixedly connected to the drive shaft, the drive motor is fixedly connected to one side of the mounting bracket, and the output end of the drive motor is fixedly connected to the end of the drive shaft adjacent to it.

[0010] To facilitate the installation of the battery that powers the indicator light, the drive shaft has an internal mounting cavity, and the mounting bracket has an opening on the side away from the drive motor that communicates with the mounting cavity.

[0011] To further enhance the securing effect on the pliers handle, a rubber ring is fixedly connected inside the positioning groove.

[0012] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: This utility model constructs a precise positioning feedback system by installing a positioning groove on the column that matches the handle of the pliers, combined with a touch switch and indicator light. Each time the pliers are clamped, they can be accurately guided to the preset position, avoiding deviation caused by human operation or mechanical error. This precision lays a solid foundation for the subsequent quenching process, enabling the laser beam to accurately act on the target area of ​​the cutting edge, avoiding performance inconsistencies caused by quenching position deviation, and greatly improving the consistency and pass rate of the products.

[0013] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a structural schematic diagram of a portion of the present utility model.

[0018] In the diagram: 1. Base; 2. Mounting bracket; 201. Drive shaft; 202. Drive motor; 203. Mounting column; 204. Positioning groove; 205. Touch switch; 206. Indicator light; 207. Rubber ring; 2010. Mounting cavity; 2011. Through port; 3. Mounting plate; 301. Hardened laser head; 302. Electric telescopic rod; 303. Guide rod. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0020] Example 1:

[0021] Reference Figures 1-3 A quenching device for machining the cutting edge of pliers includes a base 1, and further includes: a mounting frame 2 fixedly connected to the base 1; a mounting post 203 mounted on the mounting frame 2; a plurality of positioning slots 204 equidistantly provided on the mounting post 203 for use with pliers handles; a touch switch 205 fixedly connected in the positioning slots 204; an indicator light 206 electrically connected to the touch switch 205 and fixedly mounted on the mounting post 203 near the positioning slots 204; a mounting plate 3 disposed at the upper end of the mounting frame 2; a quenching laser head 301 matching the position of the positioning slots 204 and fixedly connected at equal intervals to the mounting plate 3; and an electric telescopic rod 302 fixedly connected to the mounting frame 2, the telescopic end of the electric telescopic rod 302 being fixedly connected to the mounting plate 3.

[0022] In current industrial production, many laser hardening equipment faces the problem of inaccurate clamping and positioning when hardening the cutting edge of pliers. Because the position of the pliers cannot be accurately fixed, it is difficult to accurately control the hardening area affected by the laser beam during the hardening process, resulting in inconsistent hardening quality and making it difficult to meet high-standard production requirements.

[0023] This meticulously designed quenching equipment for processing pliers cutting edges effectively overcomes this technical bottleneck. One of the core components of the equipment, the mounting column 203, has multiple positioning slots 204 that are specially adapted to the shape and size of the pliers handle. When performing quenching operations on the pliers cutting edges, the operator first gently inserts the handle end of the pliers into these positioning slots 204. As the pliers handle goes deeper, when it comes into contact with the touch switch 205 pre-installed in the positioning slot 204, a clever electrical connection is triggered.

[0024] This touch switch 205 is not an ordinary switch. It is electrically connected to the indicator light 206 fixedly installed on the mounting post 203 near the positioning slot 204. Once the pliers handle comes into contact with the touch switch 205, the touch switch 205 will send an electrical signal to the indicator light 206, controlling the corresponding indicator light 206 to light up instantly. This simple and intuitive design allows the operator to clearly know at the first moment that the pliers have been accurately inserted into place, avoiding quenching deviations that may be caused by improper installation.

[0025] To further improve production efficiency, the positioning slots 204 of this equipment are designed to allow multiple pliers to be clamped and positioned simultaneously. Once all pliers are successfully placed in the multiple positioning slots 204 and the corresponding indicator lights 206 are illuminated, the operator can activate the quenching laser head 301 and the electric telescopic rod 302. The quenching laser head 301, as a key component for the equipment's quenching function, emits a laser beam with specific energy and wavelength. This laser beam directly acts on the cutting edge of the pliers, causing a change in the metal structure of the cutting edge through a thermal effect, thereby achieving the purpose of quenching. The electric telescopic rod... 302 is responsible for driving the movement of the quenching laser head 301. It is fixedly connected to the mounting bracket 2, and its telescopic end is firmly connected to the mounting plate 3. The quenching laser head 301 is fixed at equal intervals on the mounting plate 3. When the electric telescopic rod 302 is started, it will telescopically move according to the preset program and parameters, thereby driving the mounting plate 3 and the quenching laser head 301 on the mounting plate 3 to scan back and forth on the cutting edge of the pliers along the precisely planned path. During this process, the laser beam continuously acts on the cutting edge of the pliers to ensure that all parts of the cutting edge can be uniformly quenched.

[0026] Once the quenching process is complete, the pliers' cutting edges have undergone precise laser quenching, significantly improving their hardness, wear resistance, and other performance indicators. The operator can then remove the pliers from the positioning slot 204. The equipment can then quickly be put into the quenching process for the next batch of pliers, achieving efficient and continuous production.

[0027] The positioning groove 204 is designed to fit the pliers handle. Combined with the touch switch 205 and indicator light 206, it ensures that the pliers can be accurately placed in the set position every time, which greatly improves the accuracy of clamping and positioning and solves the problem of inaccurate positioning in existing equipment.

[0028] Precise clamping and positioning enable the quenching laser head 301 to act precisely on the cutting edge of the pliers according to the preset path and range, ensuring the accuracy of the quenching area and effectively improving the stability of the quenching quality.

[0029] The indicator light 206 visually displays whether the pliers are properly inserted, making the operation simple and easy to understand. It can also position and quench multiple pliers at once, improving production efficiency and reducing the difficulty and error of manual operation.

[0030] Example 2:

[0031] Reference Figures 1-3 A quenching device for processing the cutting edge of pliers is basically the same as that in Embodiment 1, but further: guide rods 303 are symmetrically slidably connected on both sides of the electric telescopic rod 302 on the mounting frame 2, and one end of the guide rod 303 near the quenching laser head 301 is fixedly connected to the mounting plate 3.

[0032] By setting the guide rod 303, it can play a guiding and stabilizing role when the electric telescopic rod 302 drives the mounting plate 3 and the quenching laser head 301 to move, ensuring the precise movement of the quenching laser head 301 and ensuring the quenching quality.

[0033] Example 3:

[0034] Reference Figures 1-3 A quenching device for machining the cutting edge of pliers is basically the same as that in Embodiment 2, but further: the mounting post 203 is a polygonal rotating post, the positioning groove 204 is located on each surface of the mounting post 203, and the mounting frame 2 is equipped with a drive mechanism for controlling the rotation of the mounting post 203.

[0035] The drive mechanism includes a drive shaft 201 and a drive motor 202. The drive shaft 201 is rotatably connected to the mounting bracket 2, the mounting column 203 is fixedly connected to the drive shaft 201, the drive motor 202 is fixedly connected to one side of the mounting bracket 2, and the output end of the drive motor 202 is fixedly connected to the end of the drive shaft 201 adjacent to it.

[0036] The mounting post 203 is designed as a polygonal rotating post, with a positioning groove 204 on each face. In conjunction with the drive mechanism, it can greatly improve clamping efficiency. In actual production, after a batch of pliers has been quenched, the drive motor 202 is started, and its output end drives the drive shaft 201 to rotate, which in turn causes the mounting post 203 to rotate. The previously unused face with the positioning groove 204 will then rotate to a position that is easy to operate. Workers do not need to re-clamp the pliers one by one, and can quickly put a new batch of pliers into the newly exposed positioning groove 204, reducing clamping waiting time and making it suitable for large-scale, continuous production.

[0037] Example 4:

[0038] Reference Figures 1-3A quenching device for processing the cutting edge of pliers is basically the same as in Embodiment 3, but with a further improvement: the drive shaft 201 has an installation cavity 2010 inside, and the mounting bracket 2 has a through-hole 2011 connected to the installation cavity 2010 on the side away from the drive motor 202. The installation cavity 2010 inside the drive shaft 201 and the through-hole 2011 connected to the installation cavity 2010 on the side of the mounting bracket 2 away from the drive motor 202 greatly facilitate the installation of the power supply battery for the indicator light 206. When the battery needs to be charged or replaced, the operator can directly charge or remove the battery from the through-hole 2011 of the mounting bracket 2. Compared with installing the battery in other hidden and hard-to-reach locations on the equipment, this design makes the battery installation operation simple and direct, greatly saving installation time and labor costs.

[0039] A rubber ring 207 is fixedly connected inside the positioning groove 204. The rubber ring 207 fixed inside the positioning groove 204 can effectively enhance the fixing effect of the pliers handle. The rubber ring 207 has good elasticity and friction. When the pliers handle is inserted into the positioning groove 204, the rubber ring 207 will tightly fit the surface of the handle, fill the tiny gap between the handle and the positioning groove 204, and prevent the pliers from shifting or shaking due to factors such as vibration and airflow generated by the movement of the quenching laser head 301 during the quenching process. This ensures that the pliers blade is always in the precise quenching position, providing a solid guarantee for high-quality quenching operations. At the same time, during the clamping process, the metal positioning groove 204 may scratch the pliers handle due to improper operation, affecting the appearance of the pliers. The rubber ring 207 is soft and can play a buffering role during clamping, avoiding direct contact between the pliers handle and the positioning groove 204. This protects the coating or plating on the surface of the pliers from damage, maintains the overall aesthetics of the pliers, and enhances the market competitiveness of the product.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. A quenching device for machining the cutting edge of pliers, characterized in that, Including the base (1), it also includes: Mounting bracket (2) is fixedly connected to the base (1); Mounting column (203) is mounted on the mounting bracket (2); The mounting post (203) is provided with multiple positioning slots (204) at equal intervals for use with pliers handles; A touch switch (205) is fixedly connected in the positioning groove (204); An indicator light (206) electrically connected to the touch switch (205) is fixedly installed on the mounting post (203) near the positioning groove (204); Mounting plate (3) is disposed at the upper end of the mounting bracket (2); The quenching laser head (301) that matches the position of the positioning groove (204) is fixedly connected to the mounting plate (3) at equal intervals; An electric telescopic rod (302) is fixedly connected to the mounting frame (2), and the telescopic end of the electric telescopic rod (302) is fixedly connected to the mounting plate (3).

2. The quenching equipment for machining the cutting edge of pliers according to claim 1, characterized in that, Guide rods (303) are symmetrically slidably connected on both sides of the electric telescopic rod (302) on the mounting bracket (2). The end of the guide rod (303) near the quenching laser head (301) is fixedly connected to the mounting plate (3).

3. The quenching equipment for machining the cutting edge of pliers according to claim 1, characterized in that, The mounting post (203) is a polygonal rotating post, the positioning groove (204) is located on each surface of the mounting post (203), and the mounting bracket (2) is equipped with a drive mechanism for controlling the rotation of the mounting post (203).

4. The quenching equipment for machining the cutting edge of pliers according to claim 3, characterized in that, The driving mechanism includes a drive shaft (201) and a drive motor (202). The drive shaft (201) is rotatably connected to the mounting bracket (2). The mounting column (203) is fixedly connected to the drive shaft (201). The drive motor (202) is fixedly connected to one side of the mounting bracket (2). The output end of the drive motor (202) is fixedly connected to the end of the drive shaft (201) adjacent to it.

5. A quenching device for machining the cutting edge of pliers according to claim 4, characterized in that, The drive shaft (201) has an internal mounting cavity (2010), and the mounting bracket (2) has an opening (2011) on the side away from the drive motor (202) that communicates with the mounting cavity (2010).

6. The quenching equipment for machining the cutting edge of pliers according to claim 1, characterized in that, A rubber ring (207) is fixedly connected inside the positioning groove (204).