Nickel plate finished product polishing fixing tool

Abstract

The utility model discloses a nickel plate finished product polishing fixing tool relates to mechanical processing and manufacturing auxiliary equipment technical field, including profiling base, its upper portion is equipped with the profiling recess that matches with the nickel plate profile to be polished, the recess inner surface is attached with the buffer protection layer, and the bottom is embedded with magnetic attraction element and is equipped with negative pressure adsorption device, the recess depth is less than nickel plate thickness, makes the nickel plate embedding after the surface to be polished is higher than the upper surface of base. The utility model discloses a profiling positioning, magnetic attraction adsorption and negative pressure fixed combined mode, has realized the efficient, accurate, lossless clamping of nickel plate, effectively solved the traditional fixture easy to cause workpiece deformation, surface damage, clamping efficiency low etc.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing and manufacturing auxiliary equipment technology, specifically a fixture for grinding finished nickel plates. Background Technology

[0002] In the production and processing of nickel and nickel alloy plates, minor defects such as scratches and dents are prone to appear on the product surface, requiring repair through grinding. Currently, the main technical challenges in grinding such thin plates are as follows: 1. Difficulty in clamping: Traditional bench vises, clamping plates, and other general-purpose fixtures are difficult to stably clamp thin plates with limited rigidity. Excessive clamping force will cause workpiece deformation, while insufficient clamping force will fail to secure the workpiece. 2. Inconvenient grinding operation: Handling irregular workpieces is strenuous and difficult to apply even force, affecting grinding quality and posing safety risks. 3. Prone to secondary damage: During the grinding process, the workpiece may flip and collide with the worktable, causing secondary scratches. 4. Low efficiency: There is a lack of effective fixing methods, and adjusting and fixing the workpiece is time-consuming.

[0003] While some general-purpose fixtures exist, their positioning is inaccurate and their adaptability is poor, failing to meet the demands of high-quality grinding. Therefore, there is an urgent need for a specialized fixture that can closely match the product contour, clamp quickly, stably, reliably, and protect the workpiece. Utility Model Content

[0004] The purpose of this utility model is to provide a fixture for grinding and fixing finished nickel plates, 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 fixture for grinding and fixing finished nickel plates, comprising: a contouring base, the upper part of which is provided with a contouring groove that matches the outline of the nickel plate to be ground; a buffer protective layer is attached to the inner surface of the contouring groove; a magnetic attraction element is embedded in the bottom of the contouring groove; a negative pressure adsorption device for fixing the nickel plate by negative pressure assistance is provided at the bottom of the contouring groove; the depth of the contouring groove is less than the thickness of the nickel plate, so that after the nickel plate is embedded, the surface to be ground is higher than the upper surface of the base.

[0006] Furthermore, the bottom of the contour base is provided with several mounting holes.

[0007] Preferably, the buffer protective layer is made of a flexible material, including one or more composite layers of soft rubber, silicone, engineering plastics or felt.

[0008] Preferably, the magnetic attraction element is a permanent magnet or an electromagnet, and is evenly distributed at the bottom of the contoured groove.

[0009] Furthermore, the negative pressure adsorption device includes a negative pressure suction cup and a negative pressure channel connected to an external vacuum device, with the suction port of the negative pressure suction cup facing the inside of the groove.

[0010] Furthermore, a sealing ring is provided around the suction port of the negative pressure suction cup.

[0011] Furthermore, the edges of the contoured groove are provided with guide chamfers to facilitate the embedding and positioning of the nickel plate.

[0012] Preferably, the contour base is made of aluminum alloy, engineering plastic or composite material.

[0013] Preferably, the tooling further includes a control system for controlling the start / stop of the magnetic element and the negative pressure adsorption device and adjusting the adsorption force.

[0014] Preferably, the bottom of the contoured groove is provided with an exhaust hole.

[0015] Compared with existing technologies, the beneficial effects of this utility model are that it effectively solves the problems of difficult clamping, easy deformation, easy damage, and low efficiency in the grinding process of nickel plates by combining contour positioning, magnetic fixation, and negative pressure adsorption through multiple fixing methods. Specifically, the shape of the contour groove perfectly matches the contour of the nickel plate to be ground, realizing the rapid and accurate positioning of the workpiece without repeated adjustments, which greatly improves the clamping efficiency. Furthermore, the use of magnetic elements to provide instantaneous initial adsorption force, combined with the uniform large-area adsorption force generated by the negative pressure adsorption device, together form a double-safety fixing mechanism. This method avoids localized stress concentration caused by traditional mechanical clamping, making it particularly suitable for thin nickel plates with poor rigidity. It effectively prevents workpiece deformation and displacement. The flexible buffer layer on the inner surface of the contoured groove isolates the rigid tooling from direct contact with the nickel plate surface, evenly distributing pressure to prevent indentations and absorbing minor impacts and vibrations during operation and grinding. This significantly reduces the risk of secondary scratches or damage to the workpiece surface. Furthermore, the contoured groove depth design ensures the nickel plate to be ground is higher than the base surface, providing ample space for grinding and preventing interference between tools and tooling. The guide chamfer facilitates workpiece placement. The entire fixing process requires no complex operations, reducing operator workload and improving grinding safety and surface treatment consistency. Finally, the tooling base can be securely fixed to the worktable via mounting holes, providing excellent overall rigidity. An optional control system enables intelligent control and force adjustment of the magnetic and negative pressure adsorption processes, further enhancing the tooling's automation level and applicability. Attached Figure Description

[0016] Figure 1 This is a top view of the present invention;

[0017] Figure 2 This is the front view of the present utility model;

[0018] In the diagram: 1. Contouring base, 101. Contouring groove, 102. Mounting hole, 103. Vent hole, 2. Buffer protective layer, 3. Magnetic suction element, 4. Negative pressure adsorption device, 401. Negative pressure suction cup, 402. Negative pressure channel, 403. Sealing ring. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments.

[0020] Please refer to Figure 1-2 This utility model provides a fixture for grinding and fixing finished nickel plates, including: a contour base 1, which has a contour groove 101 on its upper part that matches the contour of the nickel plate to be ground. The inner surface of the contour groove 101 is attached with a buffer protective layer 2. A magnetic suction element 3 is embedded in the bottom of the contour groove 101. A negative pressure adsorption device 4 for fixing the nickel plate by negative pressure is provided at the bottom of the contour groove 101. The depth of the contour groove 101 is less than the thickness of the nickel plate, so that the surface of the nickel plate to be ground is higher than the upper surface of the base after it is embedded.

[0021] The contour base 1 serves as the base and skeleton of the fixture, providing the foundation for all other components. It withstands various forces and vibrations generated during the grinding process, ensuring the rigidity and stability of the entire fixture. The contour groove 101 achieves precise workpiece positioning. Its shape perfectly matches the finished nickel plate to be ground, restricting all degrees of freedom of the workpiece in the horizontal plane and rotational direction. Rapid positioning requires no additional adjustment. Its depth is slightly less than the thickness of the nickel plate, ensuring that after the workpiece is embedded, the surface to be ground is higher than the upper surface of the base, thus protecting the fixture body from accidental damage by the grinding tools and providing sufficient operating space. The buffer protective layer 2 acts as a soft barrier, completely isolating the hard fixture body from the nickel plate surface. Its flexible nature allows for... The contact pressure is evenly distributed, avoiding excessive local pressure that could cause indentations on the workpiece. It also absorbs minor impacts and vibrations during placement, fixing, and removal, acting as a buffer. The magnetic element 3 can instantly generate adsorption force, pulling the workpiece downwards immediately after it is placed in, achieving initial fixation. By pressing the workpiece tightly against the buffer layer and suction cup opening, it lays the foundation for establishing a negative pressure sealing cavity and provides continuous additional adsorption force throughout the grinding process, forming a double insurance with the negative pressure system and enhancing the reliability of fixation. The negative pressure adsorption device 4 utilizes the principle of atmospheric pressure, and the adsorption force it generates acts evenly within the adsorption area of ​​the workpiece, perfectly avoiding the local deformation problems caused by traditional mechanical clamping, making it particularly suitable for thin plates.

[0022] The bottom of the contour base 1 is provided with several mounting holes 102.

[0023] The contour base 1 is securely connected to the workbench via the mounting hole 102 at the bottom, ensuring that the tooling will not move during operation.

[0024] The buffer protective layer 2 is made of flexible materials, including one or more composite layers of soft rubber, silicone, engineering plastics or felt. Its softness helps to fill the microscopic unevenness on the surface of the workpiece and, in conjunction with the sealing ring, improves the sealing effect of negative pressure adsorption.

[0025] The magnetic attraction element 3 is a permanent magnet or an electromagnet, and is evenly distributed at the bottom of the contoured groove 101.

[0026] The negative pressure adsorption device 4 includes a negative pressure suction cup 401 and a negative pressure channel 402 connected to an external vacuum device, with the suction port of the negative pressure suction cup 401 facing the inside of the groove.

[0027] The edge of the contoured groove 101 is provided with a guide chamfer.

[0028] The contour base 1 is made of aluminum alloy, engineering plastic or composite material.

[0029] The tooling also includes a control system for controlling the start / stop of the magnetic element 3 and the negative pressure adsorption device 4 and adjusting the adsorption force.

[0030] The bottom of the contoured groove 101 is provided with an exhaust hole 103, which provides an additional escape channel for the air in the cavity at the bottom of the groove covered by the workpiece during vacuuming, quickly establishing the required vacuum level, shortening the waiting time, and improving work efficiency.

[0031] When using this invention, first, firmly install the contour base 1 onto the workbench through the bottom mounting hole 102 to ensure the tooling is stable. Connect the negative pressure channel 402 interface of the negative pressure adsorption device 4 to an external vacuum device, such as a vacuum generator. Align the nickel plate to be polished along the guide chamfer of the contour groove 101 edge and place it into the groove. Due to its own weight and the magnetic force of the permanent magnet or energized electromagnet of the magnetic element 3, the nickel plate is quickly adsorbed downwards and initially adheres to the buffer protective layer 2 and the sealing ring 403 on the negative pressure suction cup 401. Start the external vacuum device, and the negative pressure adsorption device 4 begins to work, drawing air through the negative pressure suction cup 401 to form a negative pressure cavity between the nickel plate and the suction cup. Atmospheric pressure presses the nickel plate tightly against the bottom of the groove, forming a double fixing effect with the magnetic attraction. The exhaust hole 103 accelerates the air discharge and shortens the vacuuming time. Confirm that the adsorption force has reached the set value through the control system or pressure gauge to ensure that the nickel plate is firmly fixed. Because the surface of the nickel plate to be polished is higher than the upper surface of the base, the operator can perform a comprehensive and uniform polishing operation. The contour base 1 provides rigid support, and the buffer protective layer 2 absorbs vibration, preventing deformation or secondary damage to the nickel plate. After polishing, the vacuum of the negative pressure adsorption device 4 is first released through the control system or valve. After the atmospheric pressure is restored, the operator can easily remove the nickel plate from the contour groove 101. Check and clean the debris on the buffer protective layer 2 and the negative pressure suction cup 401, keep the tooling clean, and prepare for the next use.

[0032] In a preferred embodiment of this utility model, a specific implementation of a fixture for grinding finished nickel plates is provided. The core components of this embodiment include a contour base 1, a buffer protective layer 2, a magnetic element 3, and a negative pressure adsorption device 4. The contour base 1 is the foundation of the entire fixture. In this embodiment, it is made of aluminum alloy by milling, resulting in a lightweight and high-strength fixture. Its upper surface is machined with a contour groove 101 that perfectly matches the outline of a specific model of finished nickel plate. The depth of the groove 101 is 0.5-1.0 mm less than the thickness of the nickel plate, ensuring that after the nickel plate is embedded, the surface to be ground is higher than the upper surface of the base, facilitating the grinding operation. The edges of the groove 101 are machined with guide chamfers to facilitate the smooth introduction of the workpiece. The bottom of the base 1 is machined with multiple mounting holes 102 and mesh reinforcing ribs to firmly fix the fixture to the worktable and enhance its rigidity. A buffer protective layer 2 is adhesively bonded to the entire inner surface of the contour groove 101, including the bottom and sidewalls. In this embodiment, the protective layer 2 is made of wear-resistant soft rubber with a thickness of approximately 2mm, effectively preventing direct contact between the nickel plate and the hard base. Multiple neodymium iron boron permanent magnets are uniformly embedded at the bottom of the contoured groove 101 as magnetic attraction elements 3, generating a strong initial attraction force on the nickel plate. A negative pressure adsorption device 4 is also located at the bottom of the groove 101. It includes three negative pressure suction cups 401, which are interconnected through internal negative pressure channels 402 and converge at a single interface for connecting to an external vacuum generator. The suction port of each negative pressure suction cup 401 is slightly higher than the bottom plane of the groove, and an O-ring silicone sealing ring 403 is embedded around it to ensure a tight seal during adsorption. Furthermore, several small vent holes 103 are drilled at non-critical locations at the bottom of the groove to accelerate air expulsion during vacuuming. Working principle: During operation, first fix the fixture and connect the vacuum lines. Place the nickel plate workpiece into the contoured groove 101 along the guide chamfer for initial positioning. Under the magnetic force of the permanent magnet 3, the workpiece is quickly attracted downwards and adheres tightly to the buffer protective layer 2 and the sealing ring 403 on the negative pressure suction cup 401. Then, the vacuum equipment is activated, and the negative pressure adsorption device 4 begins to work, removing the air between the workpiece and the suction cup 401, using atmospheric pressure to firmly fix the workpiece. At this point, the workpiece is completely fixed under the triple action of contouring, magnetic attraction, and negative pressure, and the grinding operation can begin. After the operation is completed, the vacuum is released, and the workpiece can be easily removed.

[0033] Although embodiments of the present invention have been shown and described, it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, it will be understood by those skilled in the art that all other embodiments obtained by making various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention and without creative effort are within the scope of protection of the present invention.

Claims

1. A fixture for grinding and fixing finished nickel plates, characterized in that, include: A contour base (1) has a contour groove (101) on its upper part that matches the contour of the nickel plate to be polished. A buffer protective layer (2) is attached to the inner surface of the contour groove (101). A magnetic suction element (3) is embedded in the bottom of the contour groove (101). A negative pressure adsorption device (4) for fixing the nickel plate by negative pressure is provided at the bottom of the contour groove (101). The depth of the contour groove (101) is less than the thickness of the nickel plate, so that the surface of the nickel plate to be polished is higher than the upper surface of the base after the nickel plate is embedded.

2. The fixture for grinding and fixing finished nickel plates according to claim 1, characterized in that, The bottom of the contour base (1) is provided with several mounting holes (102).

3. The fixture for grinding and fixing finished nickel plates according to claim 1, characterized in that, The buffer protective layer (2) is made of a flexible material, including one or more composite layers of soft rubber, silicone, engineering plastics or felt.

4. The fixture for grinding and fixing finished nickel plates according to claim 1, characterized in that, The magnetic attraction element (3) is a permanent magnet or an electromagnet, and is evenly distributed at the bottom of the contoured groove (101).

5. The fixture for grinding and fixing finished nickel plates according to claim 1, characterized in that, The negative pressure adsorption device (4) includes a negative pressure suction cup (401) and a negative pressure channel (402) connected to an external vacuum device, with the suction port of the negative pressure suction cup (401) facing the inside of the groove.

6. The fixture for grinding and fixing finished nickel plates according to claim 5, characterized in that, The suction port of the negative pressure suction cup (401) is provided with a sealing ring (403).

7. The fixture for grinding and fixing finished nickel plates according to claim 1, characterized in that, The edge of the contoured groove (101) is provided with a guide chamfer.

8. The fixture for grinding and fixing finished nickel plates according to claim 1, characterized in that, The contour base (1) is made of aluminum alloy, engineering plastic or composite material.

9. The fixture for grinding and fixing finished nickel plates according to claim 1, characterized in that, The tooling also includes a control system for controlling the start and stop of the magnetic suction element (3) and the negative pressure adsorption device (4) and the adjustment of the adsorption force.

10. The fixture for grinding and fixing finished nickel plates according to claim 1, characterized in that, The bottom of the contoured groove (101) is provided with an exhaust hole (103).

Images