Silver soldering seat structure
By designing bidirectional positioning grippers and limiting grippers, along with elastic buffering, the positioning accuracy and compatibility issues of the silver brazing sheet welding seat are solved, thereby improving welding quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN VEKAN PRECISION TECH CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-24
AI Technical Summary
Existing silver solder pads have problems such as insufficient positioning accuracy, easy damage to workpieces, and poor compatibility, resulting in high welding defect rates and low production efficiency.
Design a bidirectional positioning gripper assembly and limiting gripper structure, combined with an elastic guide assembly, to achieve clamping force buffering and adapt to workpieces of various thicknesses.
It improves welding positioning accuracy, reduces welding defect rate, protects workpiece integrity, and enhances production efficiency and adaptability.
Smart Images

Figure CN224543398U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to silver brazing technology, and in particular to a silver brazing sheet welding seat structure. Background Technology
[0002] In silver brazing, the positioning accuracy and clamping stability of the workpiece directly determine the welding quality. Currently, the silver brazing pads used in the industry generally suffer from the following technical problems:
[0003] Insufficient positioning accuracy: Most existing welding seats adopt a unidirectional (e.g., horizontal) clamping structure and lack a limiting mechanism perpendicular to the clamping direction. During the welding process, the workpiece is easily affected by external forces (such as welding gas flow, tooling vibration) and may shift laterally, causing the welding position to deviate from the preset trajectory, ultimately resulting in an increased product welding defect rate.
[0004] Easily damages the workpiece: Clamping components are mostly rigid metal structures, and the clamping force is directly applied to the workpiece surface through rigid transmission. Rigid clamping can easily lead to edge damage, deformation, and even micro-cracks, affecting the sealing performance and structural strength of subsequent welding.
[0005] Low adaptability and efficiency: The existing clamping mechanism has a fixed clamping gap, which can only accommodate workpieces of a single thickness. When production needs to change to workpieces of different thicknesses, it is necessary to disassemble and replace the corresponding fixtures, which is cumbersome and time-consuming, resulting in extended welding process interruptions and a significant reduction in production efficiency.
[0006] In view of the shortcomings of the existing technology, there is an urgent need to design a silver solder pad structure with bidirectional positioning, elastic buffering and multi-specification adaptability to solve the problems of positioning deviation, workpiece damage and poor adaptability. Utility Model Content
[0007] The purpose of this invention is to overcome the shortcomings of existing silver brazing pads, such as low positioning accuracy, easy damage to workpieces, and poor adaptability, and to provide a welding pad structure that can achieve bidirectional precise positioning, elastic buffer clamping, and adaptability to workpieces of various thicknesses, thereby improving welding quality and production efficiency.
[0008] To achieve the above and other related objectives, the technical solution provided by this utility model is: a silver solder pad welding seat structure, comprising:
[0009] Mounting base, wherein the top side of the mounting base is provided with a mounting opening;
[0010] The gripper assembly consists of gripper one and gripper two, which are disposed in the mounting opening along a first direction and are controlled by a drive mechanism to move toward or in opposite directions along the first direction.
[0011] A limiting claw is fixed to the top side of the mounting base. The limiting claw and the gripper assembly are arranged correspondingly along a second direction, and the first direction is perpendicular to the second direction.
[0012] The first gripper, the second gripper, and the limiting gripper have the same structure, each consisting of a main body and a hook-shaped part formed on the inner side of the top of the main body, and the cross-section of the hook-shaped part is a wedge-shaped structure.
[0013] The preferred technical solution is as follows: the driving mechanism adopts a gripper cylinder, the gripper cylinder is fixedly installed on the bottom side of the mounting base, and the gripper one and the gripper two are respectively connected to the two driving ends of the gripper cylinder.
[0014] A preferred technical solution is as follows: both gripper one and gripper two are connected to the drive end of the drive mechanism through an elastic guide assembly. The elastic guide assembly consists of a guide post, an adjusting bolt, and a spring. A guide hole is formed in the main body, which runs vertically through the main body. The main body is located on the drive end of the drive mechanism. The bottom end of the guide post passes through the guide hole and is fixedly connected to the drive end of the drive mechanism. The top end of the guide post extends out of the guide hole. The adjusting bolt is screwed onto the top end of the guide post. The spring is sleeved on the part of the guide post that extends out of the guide hole. One end of the spring abuts against the top side of the main body, and the other end abuts against the adjusting bolt.
[0015] A preferred technical solution is that the guide post and the driving end of the driving mechanism are fixed by a threaded connection.
[0016] A preferred technical solution is that the diameter of the guide hole is larger than the diameter of the guide post, and the guide hole and the guide post are in clearance fit.
[0017] Due to the application of the above technical solution, the beneficial effects of this utility model are as follows:
[0018] Bidirectional positioning improves accuracy: By vertically cooperating with the gripper assembly and the limiting claw, a "bidirectional positioning" structure is formed, which completely avoids lateral displacement caused by external force during the workpiece welding process. The positioning accuracy can be improved to ±0.05mm, and the welding defect rate is reduced to below 3%.
[0019] Elastic buffer protects the workpiece: The spring of the elastic guide component can buffer the clamping force and avoid the workpiece being crushed or deformed by rigid contact. At the same time, the hook-shaped part of the wedge-shaped section increases the contact area, further reducing local stress and effectively protecting the surface and structural integrity of the workpiece, improving the finished product qualification rate by 10-15%.
[0020] Multi-specification adaptation improves efficiency and reduces costs: The adaptive extension and retraction of the spring can adapt to workpieces with a thickness range of 0.5-10mm without changing the fixture. The workpiece changeover time is reduced from 20-30 minutes / time to 1-2 minutes / time, increasing production efficiency by more than 80%, while reducing fixture inventory costs and labor operation costs.
[0021] In summary, this utility model has a simple structure and is easy to operate. It can effectively improve the positioning accuracy, workpiece protection effect and production efficiency of silver brazing, and has high practical value and promotion significance. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the welding seat structure involved in this utility model. Detailed Implementation
[0023] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0024] Please see Figure 1 It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] Example:
[0027] like Figure 1 As shown, according to a general technical concept of this utility model, a silver solder pad bonding seat structure is provided, comprising:
[0028] Mounting base 1, the top side of mounting base 1 is provided with mounting opening 11;
[0029] The gripper assembly 2 consists of gripper one 21 and gripper two 22. Gripper one 21 and gripper two 22 are disposed in the mounting port 11 along the first direction and are controlled by the drive mechanism 3 to move towards or in opposite directions along the first direction.
[0030] The limiting claw 4 is fixed on the top side of the mounting base 1. The limiting claw 4 and the gripper assembly 2 are arranged correspondingly along the second direction, and the first direction is perpendicular to the second direction.
[0031] Among them, gripper 21, gripper 22 and limiting claw 4 have the same structure, all consisting of a main body and a hook-shaped part formed on the inner side of the top of the main body. The cross-section of the hook-shaped part is a wedge-shaped structure. This structure can press the workpiece tightly during the clamping process, forming positioning in the left-right and up-down directions. Combined with the positioning of the limiting claw 4 in the front-back direction, it can achieve triaxial positioning and ensure the precise assembly of the silver solder sheet.
[0032] like Figure 1 As shown, in an exemplary embodiment of this utility model, the drive mechanism 3 adopts a gripper cylinder, which is fixedly installed on the bottom side of the mounting base 1. Gripper 1 21 and gripper 22 are respectively connected to the two drive ends of the gripper cylinder.
[0033] like Figure 1 As shown, in an exemplary embodiment of this utility model, both gripper 21 and gripper 22 are connected to the drive end of the drive mechanism 3 via an elastic guide assembly. The elastic guide assembly consists of a guide post (not shown), an adjusting bolt 5, and a spring (not shown). A guide hole is formed in the main body, which is located on the drive end of the drive mechanism 3. The bottom end of the guide post passes through the guide hole and is fixedly connected to the drive end of the drive mechanism 3. The top end of the guide post extends out of the guide hole. The adjusting bolt 5 is screwed onto the top end of the guide post. The spring is sleeved on the part of the guide post that extends out of the guide hole. One end of the spring abuts against the top side of the main body, and the other end abuts against the adjusting bolt 5.
[0034] like Figure 1 As shown, in an exemplary embodiment of this utility model, the guide post and the drive end of the drive mechanism 3 are fixed by a threaded connection.
[0035] like Figure 1 As shown, in an exemplary embodiment of this utility model, the diameter of the guide hole is larger than the diameter of the guide post, and the guide hole and the guide post are in clearance fit.
[0036] Therefore, this utility model has the following advantages:
[0037] This utility model discloses a silver soldering pad structure, including a mounting base, a gripper assembly, and a limiting claw. The mounting base has a mounting opening on its top side. The gripper assembly consists of gripper one and gripper two, positioned within the mounting opening along a first direction and controlled by a drive mechanism to move in opposite directions. The limiting claw is fixed to the top side of the mounting base and corresponds to the gripper assembly along a second direction perpendicular to the first direction. Gripper one, gripper two, and the limiting claw all include a main body and a wedge-shaped hook-shaped portion on the inner side of their top ends. Gripper one and gripper two are connected to the drive end via an elastic guide assembly. This utility model achieves bidirectional precise positioning and elastic buffer clamping, adapting to workpieces of various thicknesses and effectively improving welding quality and production efficiency.
[0038] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A silver solder pad welding base structure, characterized in that, include: Mounting base, wherein the top side of the mounting base is provided with a mounting opening; The gripper assembly consists of gripper one and gripper two, which are disposed in the mounting opening along a first direction and are controlled by a drive mechanism to move toward or in opposite directions along the first direction. A limiting claw is fixed to the top side of the mounting base. The limiting claw and the gripper assembly are arranged correspondingly along a second direction, and the first direction is perpendicular to the second direction. The first gripper, the second gripper, and the limiting gripper have the same structure, each consisting of a main body and a hook-shaped part formed on the inner side of the top of the main body, and the cross-section of the hook-shaped part is a wedge-shaped structure.
2. The silver solder pad welding seat structure according to claim 1, characterized in that: The driving mechanism adopts a gripper cylinder, which is fixedly installed on the bottom side of the mounting base. The first gripper and the second gripper are respectively connected to the two driving ends of the gripper cylinder.
3. The silver solder pad welding seat structure according to claim 1, characterized in that: Both gripper one and gripper two are connected to the drive end of the drive mechanism via an elastic guide assembly. The elastic guide assembly consists of a guide post, an adjusting bolt, and a spring. A guide hole is formed in the main body, which is located on the drive end of the drive mechanism. The bottom end of the guide post passes through the guide hole and is fixedly connected to the drive end of the drive mechanism. The top end of the guide post extends out of the guide hole. The adjusting bolt is screwed onto the top end of the guide post. The spring is sleeved on the part of the guide post that extends out of the guide hole. One end of the spring abuts against the top side of the main body, and the other end abuts against the adjusting bolt.
4. The silver solder pad welding seat structure according to claim 3, characterized in that: The guide post is fixed to the drive end of the drive mechanism by a threaded connection.
5. The silver solder pad welding seat structure according to claim 3, characterized in that: The diameter of the guide hole is larger than the diameter of the guide post, and the guide hole and the guide post are in clearance fit.