Fixture mechanism for pistons in laser cladding strengthening process

Abstract

This utility model relates to the field of piston fixture technology and provides a fixture mechanism for laser cladding strengthening processing of pistons. It includes a worktable, with a laser assembly located in the middle of one side of the top of the worktable. The laser assembly includes a support, which is fixedly connected to the worktable. A cylinder is fixedly mounted on the top of the support, with its output end sliding through the support. A laser head is fixedly connected to the bottom of the cylinder. In this utility model, when the first motor is started, the supports move closer together, and the arc-shaped baffles abut against each other to form a circle. When the workpiece is small, the supports continue to move closer together, while the arc-shaped baffles abut against each other, fixing the position of the arc-shaped baffles. The clamping rod continues to move, causing the supports to compress the springs, and the arc-shaped baffles slide on the clamping rod through the support ring until the clamping plate clamps the workpiece. During workpiece grinding, the arc-shaped baffles can restrict powder and debris, thereby preventing large-area diffusion of debris and reducing cleaning difficulty.

Description

Technical Field

[0001] This utility model relates to the field of piston fixture technology, and in particular to a fixture mechanism for laser cladding strengthening processing of pistons. Background Technology

[0002] The jig mechanism for laser cladding strengthening piston is a special device designed to fix, position, and assist the piston in achieving uniform material deposition during the laser cladding process. It typically consists of a high-precision rotary clamping module, a multi-degree-of-freedom adjustment platform, a cooling system, and an inert gas protection unit. This mechanism drives the piston to rotate or translate at a uniform speed through a servo drive system, ensuring that the laser beam accurately covers the area to be strengthened.

[0003] As disclosed in CN219752435U, this utility model discloses a piston shaft laser cladding and grinding device, relating to the field of laser processing technology. It includes a worktable, a clamping unit, and a laser unit. The worktable is a rectangular plate structure, with the lower end of a support platform fixedly connected to the right end of its upper surface. The clamping unit includes a sliding groove, a sliding plate, a clamping plate, and a rotating assembly. A transverse sliding groove is provided at the upper end of the worktable, with the lower end of the sliding plate slidably connected to the upper end of the sliding groove. The lower end of the clamping plate is fixedly connected to the right end of the upper surface of the sliding plate. The rotating assembly is mounted on the upper end of the sliding plate. The worktable supports the main structure, and the clamping unit clamps the workpiece. When clamping is required, the sliding plate slides along the sliding groove, causing the clamping plate to move and move towards the support platform to clamp the workpiece. This piston shaft laser cladding and grinding device is easy to clean and maintain, has a long service life, is simple to operate, and has a reliable structure. In existing technologies, the workpiece is clamped by a clamping structure, the workpiece is rotated by a rotating mechanism, and the laser head position is adjusted by an adjustment structure to align with the workpiece. The inclusion of a recovery tank facilitates the collection of powder by personnel using tools after grinding. However, during the grinding process, the powder scatters everywhere, not just on the worktable, making the cleaning process cumbersome. Furthermore, the powder is further dispersed when the clamping structure moves back, increasing the difficulty of cleaning. Utility Model Content The purpose of this invention is to solve the problem in the prior art that during the grinding process, powder is scattered everywhere and not just on the worktable, making the cleaning process cumbersome. Furthermore, when the clamping structure moves back, the powder is further dispersed, thus increasing the difficulty of cleaning.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a fixture mechanism for laser cladding strengthening processing piston, comprising a worktable, a laser assembly disposed in the middle of one side of the top of the worktable, the laser assembly comprising a bracket, the bracket being fixedly connected to the worktable, a cylinder being fixedly disposed at the top of the bracket, the output end of the cylinder slidingly penetrating the bracket, a laser head being fixedly connected to the bottom end of the cylinder, and a positioning and protection structure located on one side of the bracket at the top of the worktable, the positioning and protection structure comprising a positioning component, a cleaning component, and a protection component.

[0005] In a preferred embodiment, a chute is provided at the center of the top of the workbench, a discharge port is provided at the center of the bottom of the chute, a discharge pipe is fixedly connected to the workbench outside the discharge port, and a collection box is provided at the bottom of the workbench at the discharge pipe.

[0006] In a preferred embodiment, the positioning component includes a first motor, which is fixedly disposed in the middle of one side of the worktable. A bidirectional lead screw is drivenly connected to one side of the first motor. The bidirectional lead screw rotates inside the slide groove. Support sliders are threadedly connected to both ends of the bidirectional lead screw inside the slide groove. The support sliders are slidably connected to the slide groove. A support is fixedly connected to the top of the support sliders. The support is slidably connected to the worktable.

[0007] In a preferred embodiment, a clamping rod is rotatably connected to the middle of the support, one clamping rod passes through the support, and a second motor is drivenly connected to the end of the clamping rod that passes through the support. The second motor is fixedly installed with the support, and a clamping plate is fixedly connected to the ends of the clamping rod that are close to each other.

[0008] In a preferred embodiment, the protective assembly includes two arc-shaped baffles that abut against each other. The arc-shaped baffles are disposed in the middle of the clamping rod, and the bottom end of the arc-shaped baffles is slidably connected to the worktable. A support ring is fixedly connected to the middle of the arc-shaped baffles, and the support ring is slidably connected to the clamping rod. Springs are fixedly connected to both the top and bottom ends of the arc-shaped baffles and the support rings, and the springs are fixedly connected to the supports.

[0009] In a preferred embodiment, the cleaning assembly includes a fixing plate, which is fixed to the top of the workbench on both sides different from the first motor. An electric push rod is fixedly connected to one side of the fixing plate that is close to the other. A pusher plate is fixedly connected to one end of the electric push rod that is close to the other. The pusher plate is slidably connected to the workbench. The length of the pusher plate is equal to the diameter of the arc-shaped baffle after it is closed.

[0010] The beneficial effects of this utility model are as follows: In this invention, when the first motor is started and drives the supports to move closer together, the arc-shaped baffles abut against each other to form a circle. When the workpiece is small, the supports continue to move closer together, and the arc-shaped baffles abut against each other, fixing the position of the arc-shaped baffles. The clamping rod continues to move, causing the supports to compress the spring, and the arc-shaped baffles slide on the clamping rod through the support ring until the clamping plate clamps the workpiece. When grinding the workpiece, the arc-shaped baffles can restrict powder and debris, thereby preventing the debris from spreading over a large area and reducing the difficulty of cleaning. After grinding is completed, the first motor reverses and drives the supports to move away from each other, and the springs gradually rebound. Finally, as the clamping rods move, they separate and return to their original positions. At this time, the electric push rod is activated, which pushes the push plate to move. The push plate pushes the debris blocked on the worktable by the arc-shaped baffle. The debris falls into the discharge port and then enters the collection box for collection. Therefore, labor can be reduced, and cleaning is more convenient when used with the arc-shaped baffle. Attached Figure Description

[0011] Figure 1 A schematic diagram of the fixture mechanism for a piston used in laser cladding strengthening processing provided by this utility model; Figure 2 A cross-sectional structural schematic diagram of the fixture mechanism for laser cladding strengthening piston provided by this utility model; Figure 3 A schematic diagram of the worktable structure of the fixture mechanism for laser cladding strengthening piston provided by this utility model; Figure 4 A schematic diagram of the protective component structure of the fixture mechanism for a piston used in laser cladding strengthening processing provided by this utility model; Figure 5 This is a schematic diagram of the closed structure of the protective component of the fixture mechanism for laser cladding strengthening piston provided by this utility model.

[0012] Legend: 1. Workbench; 11. Slide; 12. Discharge port; 13. Discharge pipe; 14. Collection box; 21. Support; 22. Cylinder; 23. Laser head; 31. First motor; 311. Bidirectional lead screw; 312. Support slider; 313. Support; 314. Clamping rod; 315. Clamping plate; 316. Second motor; 32. Fixing plate; 321. Electric push rod; 322. Pushing plate; 33. Arc-shaped baffle; 331. Support ring; 332. Spring. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a fixture mechanism for laser cladding strengthening processing piston, including a worktable 1, a laser component is provided in the middle of one side of the top of the worktable 1, the laser component includes a bracket 21, the bracket 21 is fixedly connected to the worktable 1, a cylinder 22 is fixedly provided at the top of the bracket 21, the output end of the cylinder 22 slides through the bracket 21, a laser head 23 is fixedly connected at the bottom of the cylinder 22, and a positioning and protection structure is provided on one side of the top of the worktable 1 located on the bracket 21, the positioning and protection structure includes a positioning component, a cleaning component and a protection component.

[0015] like Figure 1 - Figure 3 As shown, a chute 11 is provided in the middle of the top of the workbench 1, and a discharge port 12 is provided in the middle of the bottom of the chute 11. A discharge pipe 13 is fixedly connected to the outside of the discharge port 12 on the workbench 1. A collection box 14 is provided at the bottom of the discharge pipe 13 on the workbench 1. The cleaning component includes a fixing plate 32. The fixing plate 32 is fixed on both sides of the top of the workbench 1 that are different from the first motor 31. An electric push rod 321 is fixedly connected to the side of the fixing plate 32 that is close to each other. A push plate 322 is fixedly connected to the end of the electric push rod 321 that is close to each other. The push plate 322 is slidably connected to the workbench 1. The length of the push plate 322 is equal to the diameter of the arc-shaped baffle 33 after it is closed.

[0016] In this embodiment, after grinding is completed, the first motor 31 reverses and drives the support 313 to move away from each other, and the spring 332 gradually rebounds. Finally, as the clamping rod 314 moves, they separate and return to their original positions. At this time, the electric push rod 321 is activated, and the electric push rod 321 pushes the push plate 322 to move. The push plate 322 pushes the debris blocked on the worktable 1 by the arc-shaped baffle 33. The debris falls into the discharge port 12 and then enters the collection box 14 for collection. Therefore, labor can be reduced, and cleaning is more convenient when combined with the arc-shaped baffle 33.

[0017] like Figure 2 , Figure 4 and Figure 5As shown, the positioning assembly includes a first motor 31, which is fixedly mounted in the middle of one side of the worktable 1. A bidirectional lead screw 311 is driven to one side of the first motor 31. The bidirectional lead screw 311 rotates inside the slide groove 11. Support sliders 312 are threadedly connected to both ends of the bidirectional lead screw 311 inside the slide groove 11. The support sliders 312 are slidably connected to the slide groove 11. A support 313 is fixedly connected to the top of the support slider 312. The support 313 is slidably connected to the worktable 1. A clamping rod 314 is rotatably connected to the middle of the support 313. One clamping rod 314 passes through the support 313. The clamping rod 314 is located at the point through which the clamping rod passes. The end drive is connected to a second motor 316, which is fixedly mounted to the support 313. A clamping plate 315 is fixedly connected to one end of the clamping rod 314 that is close to each other. The protective assembly includes two arc-shaped baffles 33 that abut against each other. The arc-shaped baffles 33 are located in the middle of the clamping rod 314. The bottom end of the arc-shaped baffles 33 is slidably connected to the worktable 1. A support ring 331 is fixedly connected to the middle of the arc-shaped baffles 33. The support ring 331 is slidably connected to the clamping rod 314. Springs 332 are fixedly connected to both the top and bottom ends of the arc-shaped baffles 33 and the support ring 331. The springs 332 are fixedly connected to the support 313.

[0018] In this embodiment, the operator starts the first motor 31, which drives the bidirectional lead screw 311 to rotate. The bidirectional lead screw 311 causes the support sliders 312 to move closer together. The support sliders 312 cause the support 313 to move. The support 313 causes the clamping rod 314 to move. The clamping rod 314 causes the clamping plates 315 to move closer together. The arc-shaped baffles 33 abut against each other to form a circle. When the workpiece is small, the support 313 continues to move closer together, while the arc-shaped baffles 33 abut against each other, fixing the position of the arc-shaped baffles 33. The clamping rod 314 continues to move, causing the support 313 to compress the spring 332. The arc-shaped baffles 33 slide on the clamping rod 314 through the support ring 331 until the clamping plates 315 abut against each other. During workpiece clamping and grinding, the laser head 23 processes the workpiece, and the second motor 316 is activated to drive the clamping rod 314 to rotate. The clamping rod 314 drives the clamping plate 315 to rotate. The clamping plate 315, through the workpiece, can drive the other clamping plate 315 to rotate, thus achieving workpiece rotation adjustment. The arc-shaped baffle 33 can restrict powder and debris, thereby preventing large-area diffusion of debris and reducing cleaning difficulty.

[0019] Working principle: First, during use, the operator starts the first motor 31, which drives the bidirectional lead screw 311 to rotate. The bidirectional lead screw 311 drives the support slider 312 to move closer together. The support slider 312 drives the support 313 to move. The support 313 drives the clamping rod 314 to move. The clamping rod 314 drives the clamping plate 315 to move closer together, while the arc-shaped baffles 33 abut against each other to form a circle. When the workpiece is small, the support 313 continues to move closer together, while the arc-shaped baffles 33 abut against each other, fixing the position of the arc-shaped baffles 33. The clamping rod 314 continues to move, causing the support 313 to compress the spring 332, and the arc-shaped baffles 33 slide on the clamping rod 314 through the support ring 331 until the clamping plate 315 clamps the workpiece. During workpiece grinding, the laser head 23 processes the workpiece, and the second motor 316 is started to drive... The moving clamping rod 314 rotates, which drives the clamping plate 315 to rotate. The clamping plate 315 can drive another clamping plate 315 to rotate through the workpiece, realizing the rotation adjustment of the workpiece. The arc-shaped baffle 33 can restrict the powder and debris, thereby preventing the debris from spreading over a large area and reducing the difficulty of cleaning. After grinding is completed, the first motor 31 reverses and drives the support 313 to move away from each other, and the spring 332 gradually rebounds. Finally, as the clamping rod 314 moves, they separate and return to their original positions. At this time, the electric push rod 321 is activated, and the electric push rod 321 pushes the pusher plate 322 to move. The pusher plate 322 pushes the debris blocked on the worktable 1 by the arc-shaped baffle 33. The debris falls into the discharge port 12 and then enters the collection box 14 for collection. Therefore, it can reduce labor and is more convenient to clean in conjunction with the arc-shaped baffle 33.

[0020] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A fixture mechanism for laser cladding strengthening processing of pistons, comprising a worktable (1), characterized in that: A laser assembly is provided in the middle of one side of the top of the workbench (1). The laser assembly includes a bracket (21), which is fixedly connected to the workbench (1). A cylinder (22) is fixedly provided at the top of the bracket (21). The output end of the cylinder (22) slides through the bracket (21). A laser head (23) is fixedly connected to the bottom of the cylinder (22). A positioning and protection structure is provided on one side of the bracket (21) at the top of the workbench (1). The positioning and protection structure includes a positioning component, a cleaning component, and a protection component.

2. The fixture mechanism for laser cladding strengthening pistons according to claim 1, characterized in that: A chute (11) is provided at the middle of the top of the workbench (1), and a discharge port (12) is provided at the middle of the bottom of the chute (11). A discharge pipe (13) is fixedly connected to the workbench (1) outside the discharge port (12), and a collection box (14) is provided at the bottom of the workbench (1) and the discharge pipe (13).

3. The fixture mechanism for laser cladding strengthening pistons according to claim 1, characterized in that: The positioning component includes a first motor (31), which is fixedly installed in the middle of one side of the worktable (1). A bidirectional lead screw (311) is connected to one side of the first motor (31). The bidirectional lead screw (311) rotates inside the slide groove (11). Support sliders (312) are threadedly connected to both ends of the bidirectional lead screw (311) inside the slide groove (11). The support sliders (312) are slidably connected to the slide groove (11). A support (313) is fixedly connected to the top of the support sliders (312). The support (313) is slidably connected to the worktable (1).

4. The fixture mechanism for a piston used in laser cladding strengthening processing according to claim 3, characterized in that: A clamping rod (314) is rotatably connected to the middle of the support (313). One clamping rod (314) passes through the support (313). A second motor (316) is connected to the end of the clamping rod (314) that passes through it. The second motor (316) is fixedly installed with the support (313). A clamping plate (315) is fixedly connected to the end of the clamping rod (314) that is close to each other.

5. The fixture mechanism for laser cladding strengthening pistons according to claim 1, characterized in that: The protective assembly includes two arc-shaped baffles (33) that abut against each other. The arc-shaped baffles (33) are located in the middle of the clamping rod (314). The bottom end of the arc-shaped baffles (33) is slidably connected to the workbench (1). A support ring (331) is fixedly connected to the middle of the arc-shaped baffles (33). The support ring (331) is slidably connected to the clamping rod (314). Springs (332) are fixedly connected to both the top and bottom ends of the arc-shaped baffles (33) and the springs (332) are fixedly connected to the support (313).

6. The fixture mechanism for laser cladding strengthening pistons according to claim 1, characterized in that: The cleaning assembly includes a fixing plate (32), which is fixed on both sides of the top of the workbench (1) that are different from the first motor (31). An electric push rod (321) is fixedly connected to one side of the fixing plate (32) that is close to each other. A push plate (322) is fixedly connected to one end of the electric push rod (321) that is close to each other. The push plate (322) is slidably connected to the workbench (1). The length of the push plate (322) is equal to the diameter of the arc-shaped baffle (33) after it is closed.

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