A jig mechanism for laser coating
By introducing heat dissipation and support components into the laser coating fixture, the problems of workpiece displacement and fixture damage caused by thermal deformation are solved, and high-precision laser coating effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN GENUINE GAOLI OPTICS
- Filing Date
- 2025-07-02
- Publication Date
- 2026-08-04
AI Technical Summary
Existing laser coating fixtures are prone to workpiece displacement due to thermal deformation in high-temperature environments, and thermal stress may damage the workpiece material and the fixture, making it difficult to meet the micron-level positioning requirements of high-precision coating.
A fixture mechanism including a heat dissipation component and a support component was designed. The heat dissipation is achieved by combining a heat-conducting copper pipe and heat dissipation fins, utilizing coolant circulation and heat dissipation blades driven by a drive motor, and the workpiece is stably clamped by the cooperation of a fixing pin, a damping spring and a positioning block.
It effectively avoids thermal damage to the fixture and workpiece positional deviation, ensuring workpiece positioning accuracy and fixture stability in high-temperature environments, and achieving high-precision laser coating.
Smart Images

Figure CN224591028U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser coating fixture technology, and in particular to a fixture mechanism for laser coating. Background Technology
[0002] Laser coating is a process that uses laser technology to deposit a thin film on the surface of a material. Through the high energy of the laser beam, the coating material is evaporated, sputtered, or chemically reacted, forming a uniform and dense thin film layer on the surface of the workpiece. In the laser coating process, the support fixture mechanism is a key piece of equipment used to fix the workpiece to be coated, and its performance directly affects the coating quality and process stability.
[0003] Existing conventional fixtures mostly use mechanical clamping or vacuum adsorption methods, which are prone to workpiece displacement due to thermal deformation in the high temperature environment of laser, making it difficult to meet the micron-level positioning requirements of high-precision coating. At the same time, the local high temperature generated during the laser coating process is prone to accumulate on the contact surface between the fixture and the workpiece, which may not only damage the workpiece material, but also cause damage to the supporting fixture due to thermal stress.
[0004] Therefore, those skilled in the art have provided a fixture mechanism for laser coating to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fixture mechanism for laser coating. Through a support component, a workpiece groove corresponding to the workpiece shape is selected, and then a support plate is placed inside the support plate. A fixing pin, damping spring, and positioning block work together to fix the support plate inside the fixture. This allows the operator to replace the support plate according to the workpiece shape, thus avoiding the problem of positional displacement caused by thermal deformation due to mechanical clamping or vacuum adsorption.
[0006] To achieve the above objectives, the present invention provides the following technical solution: A fixture mechanism for laser coating includes a support fixture, a heat dissipation assembly at the lower end of the support fixture, the heat dissipation assembly including a heat-conducting copper pipe disposed inside the support fixture, a metal micro water pump fixedly connected to one side of the rear end of the lower surface of the support fixture, a heat dissipation copper pipe fixedly connected to the output end of the metal micro water pump, multiple heat dissipation fins fixedly connected to the outer wall of the heat dissipation copper pipe, multiple heat dissipation frames fixedly connected to the front end of the lower surface of the support fixture, a support frame fixedly connected to the inner wall of the heat dissipation frame, a drive motor fixedly connected to the inner wall of the support frame, and heat dissipation blades fixedly connected to the output end of the drive motor. The upper end of the support fixture is provided with a support component. The support component includes mounting cavities opened at four corners inside the support fixture. Each mounting cavity is provided with a fixing pin. A damping spring is sleeved in the middle of the rod of the fixing pin. A baffle is rotatably connected to the side of the fixing pin near the middle of the support fixture. A placement groove is opened on the upper surface of the support fixture. A support plate is provided inside the placement groove. Multiple workpiece grooves are opened on the upper surface of the support plate. The above technical solution effectively avoids damage to the support fixture caused by thermal stress by using heat dissipation components. Furthermore, the support components ensure that the workpiece groove is the same size as the workpiece, thereby effectively preventing the workpiece from shifting in a high-temperature environment.
[0007] Furthermore, the input end of the metal micro water pump is connected to one end of the heat-conducting copper pipe, and the end of the heat-dissipating copper pipe away from the metal micro water pump is connected to the heat-conducting copper pipe. Coolant flows inside both the heat-conducting copper pipe and the heat-dissipating copper pipe, and the body of the heat-conducting copper pipe is in close contact with the inner wall of the supporting fixture. The above technical solution enables the heat dissipation copper pipe and the heat conduction copper pipe to be interconnected, and the internal coolant is circulated by a metal micro water pump, thereby achieving the purpose of cooling the support fixture.
[0008] Furthermore, support frames are fixedly connected to the four corners of the lower surface of the supporting fixture; The above technical solution allows for easier installation of the support fixture via the provided support frame, and also effectively provides installation space for the lower heat dissipation components.
[0009] Furthermore, T-shaped sliding grooves are provided at the rear ends of the inner walls on both sides of the placement groove, and T-shaped sliders are fixedly connected to the rear ends of the outer walls on both sides of the support plate, and the T-shaped sliders slide inside the T-shaped sliding grooves. The above technical solution, through the T-shaped slider and T-shaped groove, can initially and stably place the support plate.
[0010] Furthermore, two positioning blocks are fixedly connected to the end of the fixing pin away from the baffle. The outer wall of the positioning block near the baffle is tightly fitted with the outer wall of the supporting fixture, and the end of the fixing pin away from the positioning block is engaged with the inner wall of the supporting plate. Through the above technical solution, by setting the positioning block, the positioning block can be rotated to be placed horizontally. The positioning block can be attached to the outer wall of the support fixture, so that the fixing pin can be kept in a compressed state by the baffle. This makes it convenient for the staff to put in the support plate. Rotating the positioning block to be placed vertically separates the positioning block from the support fixture, so that the positioning block can slide inside the installation cavity with the fixing pin.
[0011] Furthermore, a dustproof net is fixedly connected to the front end of the inner wall of the heat dissipation frame, and a retrieval groove is opened in the middle of the inner wall on both sides of the placement groove. The above technical solution effectively prevents foreign objects from entering the heat sink frame and damaging the heat sink blades by using a dustproof net. The retrieval slot makes it easier for staff to remove the support plate from the slot after use.
[0012] Furthermore, the outer wall of the actuating rod on the side away from the supporting fixture is fixedly connected with an actuating rod; The above technical solution allows workers to more easily rotate and pull the fixing pin using the set lever.
[0013] Furthermore, the upper surface of each heat dissipation fin is fixedly connected with heat-insulating silicone, and the upper surface of the heat-insulating silicone is fixedly connected to the lower surface of the supporting fixture. The above technical solution effectively fixes the position of the heat dissipation fins by using the heat insulation silicone, while the heat dissipation fins effectively support the heat dissipation copper pipes.
[0014] This utility model has the following beneficial effects: 1. This utility model proposes a fixture mechanism for laser coating. Through a heat dissipation component, a metal micro-water pump circulates coolant within heat dissipation copper pipes and heat conduction copper pipes. The high thermal conductivity of copper allows the coolant to carry heat from the heat conduction copper pipes into the heat dissipation pipes. The heat from the coolant is then guided to the body of the heat dissipation copper pipes. Heat dissipation fins further guide the heat and increase the contact area with the gas. A drive motor rotates the heat dissipation blades, generating suction that allows the flowing gas to expel the heat from the heat dissipation fins. The coolant then circulates within the heat dissipation copper pipes and heat conduction copper pipes, effectively dissipating heat from the fixture and preventing damage caused by excessively high local temperatures.
[0015] 2. The present invention proposes a fixture mechanism for laser coating. By setting a support component, selecting a workpiece groove corresponding to the shape of the workpiece, and then placing the support plate inside the support plate, the support plate is fixed inside the support fixture by the cooperation of fixing pins, damping springs and positioning blocks. This allows the operator to replace the support plate according to the shape of the workpiece, thereby avoiding the problem of position displacement caused by thermal deformation due to mechanical clamping or vacuum adsorption. Attached Figure Description
[0016] Figure 1This is an isometric view of a fixture mechanism for laser coating proposed in this utility model; Figure 2 This is a schematic diagram of the structure of a fixture mechanism for laser coating proposed in this utility model; Figure 3 This is a schematic diagram of the heat dissipation component in a fixture mechanism for laser coating proposed in this utility model; Figure 4 This is a partial cross-sectional view of a support component in a fixture mechanism for laser coating proposed in this utility model; Figure 5 An exploded view of a fixture mechanism for laser coating proposed in this utility model; Figure 6 This is a partial axial cross-sectional view of a heat dissipation component in a fixture mechanism for laser coating proposed in this utility model; Figure 7 This is a partial exploded view of the heat dissipation component in a fixture mechanism for laser coating proposed in this utility model.
[0017] 1. Supporting fixture; 2. Heat dissipation components; 201. Copper heat dissipation pipe; 202. Metal miniature water pump; 203. Heat dissipation fins; 204. Heat dissipation frame; 205. Dust filter; 206. Thermal insulation silicone; 207. Thermal conductive copper pipe; 208. Heat dissipation blades; 209. Drive motor; 210. Support frame; 3. Supporting assembly; 301. Actuating lever; 302. Fixing pin; 303. Baffle; 304. Damping spring; 305. Positioning block; 306. Mounting cavity; 307. Support plate; 308. Workpiece groove; 309. T-slider; 310. T-groove; 4. Support frame; 5. Retrieval slot; 6. Placement slot. Detailed Implementation
[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] One specific embodiment of this utility model is provided: Reference Figure 1 , Figure 3 and Figure 4 : A fixture mechanism for laser coating includes a support fixture 1, a heat dissipation component 2 at the lower end of the support fixture 1, the heat dissipation component 2 including a heat-conducting copper pipe 207 disposed inside the support fixture 1, a metal micro water pump 202 fixedly connected to one side of the rear end of the lower surface of the support fixture 1, a heat dissipation copper pipe 201 fixedly connected to the output end of the metal micro water pump 202, a plurality of heat dissipation fins 203 fixedly connected to the outer wall of the heat dissipation copper pipe 201, a plurality of heat dissipation frames 204 fixedly connected to the front end of the lower surface of the support fixture 1, a support frame 210 fixedly connected to the inner wall of the heat dissipation frame 204, a drive motor 209 fixedly connected to the inner wall of the support frame 204, and a heat dissipation blade 208 fixedly connected to the output end of the drive motor 209. The upper end of the support fixture 1 is provided with a support component 3. The support component 3 includes an installation cavity 306 opened at the four corners inside the support fixture 1. A fixing pin 302 is provided inside each installation cavity 306. A damping spring 304 is sleeved in the middle of the rod of the fixing pin 302. A baffle 303 is rotatably connected to the side of the rod of the fixing pin 302 near the middle of the support fixture 1. A placement groove 6 is opened on the upper surface of the support fixture 1. A support plate 307 is provided inside the placement groove 6. A plurality of workpiece grooves 308 are opened on the upper surface of the support plate 307. The heat dissipation component 2 effectively avoids the problem of damage to the support fixture 1 caused by thermal stress. Furthermore, the support component 3 ensures that the workpiece groove 308 is consistent with the size of the workpiece, thereby effectively preventing the workpiece from shifting under high temperature conditions.
[0020] Reference Figure 2 and Figure 3 ; The input end of the metal micro water pump 202 is connected to one end of the heat-conducting copper pipe 207, and the end of the heat-dissipating copper pipe 201 away from the metal micro water pump 202 is connected to the heat-conducting copper pipe 207. Coolant flows inside both the heat-conducting copper pipe 207 and the heat-dissipating copper pipe 201. The body of the heat-conducting copper pipe 207 is tightly fitted to the inner wall of the support fixture 1, so that the heat-dissipating copper pipe 201 and the heat-conducting copper pipe 207 are connected to each other. The metal micro water pump 202 makes the internal coolant flow, thereby achieving the purpose of cooling the support fixture 1. Support frames 4 are fixedly connected to the four corners of the lower surface of the support fixture 1. The support frames 4 make it easier to install the support fixture 1, and the support frames 4 can effectively provide installation space for the heat dissipation component 2 at the lower end.
[0021] Reference Figure 1 , Figure 2 and Figure 6 : T-shaped grooves 310 are provided at the rear ends of the inner walls on both sides of the placement groove 6. T-shaped sliders 309 are fixedly connected to the rear ends of the outer walls on both sides of the support plate 307. The T-shaped sliders 309 slide inside the T-shaped grooves 310. The T-shaped sliders 309 and T-shaped grooves 310 can initially stabilize the support plate 307. Two positioning blocks 305 are fixedly connected to the end of the fixing pin 302 away from the baffle 303. The outer wall of the positioning block 305 near the baffle 303 is in close contact with the outer wall of the support fixture 1. The fixing pin 302 is away from the positioning block. One end of 305 is engaged with the inner wall of the support plate 307. The positioning block 305 is rotated to a horizontal position and can be attached to the outer wall of the support fixture 1. This allows the fixing pin 302 to keep the damping spring 304 in a compressed state through the baffle 303, making it convenient for the operator to place the support plate 307. The positioning block 305 is then rotated to a vertical position, separating it from the support fixture 1. This allows the positioning block 305 to slide inside the mounting cavity 306 along with the fixing pin 302.
[0022] Reference Figure 7 : Dustproof nets 205 are fixedly connected to the front end of the inner wall of the heat dissipation frame 204. Removal slots 5 are provided in the middle of the inner walls on both sides of the placement slot 6. The dustproof nets 205 can effectively prevent foreign objects from entering the interior of the heat dissipation frame 204 and damaging the heat dissipation blades 208. The removal slots 5 make it easier for staff to remove the support plate 307 from the interior of the placement slot 6 after use.
[0023] Reference Figure 2 and Figure 4 : The outer wall of the lever 301 away from the supporting fixture 1 is fixedly connected with the lever 301. The lever 301 makes it easier for the staff to rotate and pull the fixing pin 302.
[0024] Reference Figure 5 and Figure 6 ; The upper surface of the heat dissipation fins 203 is fixedly connected with heat-insulating silicone 206. The upper surface of the heat-insulating silicone 206 is fixedly connected to the lower surface of the support fixture 1. The heat-insulating silicone 206 can effectively fix the position of the heat dissipation fins 203, and the heat dissipation fins 203 can effectively support the heat dissipation copper pipe 201.
[0025] Working principle: In use, the support fixture 1 is installed on the worktable of the laser coating machine via the support frame 4. Then, a suitable support plate 307 is selected according to the shape of the workpiece. Before placing the support plate 307, the actuating rod 301 is pulled, which causes the actuating rod 301 to compress the damping spring 304 via the baffle 303 driven by the fixing pin 302. After the fixing pin 302 moves a certain position, the actuating rod 301 rotates the fixing pin 302, thereby changing the positioning block 305 from longitudinal to transverse. Then, the positioning block 305 contacts and locks against the outer wall of the support fixture 1. Next, the position of the fixing pin 302 is initially fixed. Then, the support plate 307 is aligned with the T-shaped slide groove 310 of the placement groove 6 via the T-shaped slider 309, thus placing the support plate 307 inside the placement groove 6. Then, the operator rotates the actuating lever 301 again, causing the actuating lever 301 to drive the fixing pin 302 to rotate, thereby changing the positioning block 305 from horizontal to vertical, so that the positioning block 305 is disengaged from the outer wall of the support fixture 1. Then, the force of the damping spring 304 drives the baffle 303 to move, thereby inserting one end of the fixing pin 302 into the support plate 307. The support plate 307 is stably placed inside the workpiece slot 308. The power supply is then connected to the support fixture 1, and the workpiece is placed inside the workpiece slot 308 for coating treatment. During coating treatment, the temperature received by the support fixture 1 is conducted to the body of the heat-conducting copper pipe 207 through thermal conductivity, thereby heating the coolant inside the heat-conducting copper pipe 207. Then, the metal micro water pump 202 is started to draw coolant from inside the heat-conducting copper pipe 207 and deliver it to the heat-dissipating copper pipe 201, whereby the coolant heats the heat-dissipating copper pipe 201. Subsequently, as the heat dissipation fins 203 come into contact with the heat dissipation copper pipes 201, some heat is conducted to the heat dissipation fins 203, thereby increasing the heat dissipation area. Then, the drive motor 209 is started, causing the drive motor 209 to drive the heat dissipation blades 208 to rotate, generating suction. This suction drives the airflow, which flows in the gaps between the multiple heat dissipation fins 203, thereby dissipating heat from the heat dissipation fins 203. This, in turn, circulates the coolant inside the heat-conducting copper pipes 207 and the heat dissipation copper pipes 201, achieving the effect of dissipating heat from the support fixture 1.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. The specific meaning of the above terms in this utility model shall be understood by those skilled in the art based on the specific circumstances. In addition, unless otherwise stated, "multiple" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as a limitation on this utility model; the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A jig mechanism for laser coating, comprising a supporting jig (1) and a supporting frame (4), characterized in that: The lower end of the support fixture (1) is provided with a heat dissipation component (2), which includes a heat-conducting copper pipe (207) disposed inside the support fixture (1). A metal micro water pump (202) is fixedly connected to one side of the rear end of the lower surface of the support fixture (1). A heat dissipation copper pipe (201) is fixedly connected to the output end of the metal micro water pump (202). Multiple heat dissipation fins (203) are fixedly connected to the outer wall of the heat dissipation copper pipe (201). Multiple heat dissipation frames (204) are fixedly connected to the front end of the lower surface of the support fixture (1). A support frame (210) is fixedly connected to the inner wall of the heat dissipation frame (204). A drive motor (209) is fixedly connected to the inner wall of the support frame (4). A heat dissipation blade (208) is fixedly connected to the output end of the drive motor (209). The upper end of the support fixture (1) is provided with a support component (3). The support component (3) includes an installation cavity (306) opened at the four corners inside the support fixture (1). A fixing pin (302) is provided inside each of the installation cavities (306). A damping spring (304) is sleeved in the middle of the rod of the fixing pin (302). A baffle (303) is rotatably connected to the side of the rod of the fixing pin (302) near the middle of the support fixture (1). A placement groove (6) is opened on the upper surface of the support fixture (1). A support plate (307) is provided inside the placement groove (6). A plurality of workpiece grooves (308) are opened on the upper surface of the support plate (307).
2. The fixture mechanism for laser coating according to claim 1, wherein: The input end of the metal micro water pump (202) is connected to one end of the heat-conducting copper pipe (207), and the end of the heat-dissipating copper pipe (201) away from the metal micro water pump (202) is connected to the heat-conducting copper pipe (207). Coolant flows inside both the heat-conducting copper pipe (207) and the heat-dissipating copper pipe (201). The body of the heat-conducting copper pipe (207) is tightly fitted to the inner wall of the supporting fixture (1).
3. The fixture mechanism for laser coating according to claim 1, wherein: The support fixture (1) has a support frame (4) fixedly connected to each of the four corners of its lower surface.
4. The fixture mechanism for laser coating according to claim 1, wherein: The rear ends of the inner walls on both sides of the placement groove (6) are provided with T-shaped sliding grooves (310), and the rear ends of the outer walls on both sides of the support plate (307) are fixedly connected with T-shaped sliders (309). The T-shaped sliders (309) slide inside the T-shaped sliding grooves (310).
5. The fixture mechanism for laser coating according to claim 1, wherein: Two positioning blocks (305) are fixedly connected to one end of the fixed pin (302) away from the baffle (303). The outer wall of the positioning block (305) near the baffle (303) is closely fitted with the outer wall of the support fixture (1). The end of the fixed pin (302) away from the positioning block (305) is engaged with the inner wall of the support plate (307).
6. The fixture mechanism for laser coating according to claim 1, wherein: The front end of the inner wall of the heat dissipation frame (204) is fixedly connected with a dustproof net (205), and the middle of the inner wall on both sides of the placement slot (6) is provided with a retrieval slot (5).
7. The fixture mechanism for laser coating according to claim 1, wherein: Each of the fixed pins (302) has a lever (301) fixedly connected to the outer wall of the side away from the supporting fixture (1).
8. The fixture mechanism for laser coating according to claim 1, wherein: The upper surface of the heat dissipation fin (203) is fixedly connected with heat insulation silica gel (206), and the upper surface of the heat insulation silica gel (206) is fixedly connected with the lower surface of the supporting jig (1).