Rim valve hole forming equipment

Abstract

The utility model discloses rim valve hole forming equipment which comprises a supporting frame. A base is installed on the supporting frame, a positioning structure is connected to the base, two side baffles are symmetrically installed above the supporting frame, a drilling structure is connected between the two side baffles, a shaft seat is connected to the drilling structure, an adjusting structure is connected to the shaft seat, the positioning structure comprises a positioning air cylinder, and the positioning air cylinder is installed in the base and the supporting frame. A lifting rod is mounted at the telescopic end of the positioning cylinder; a plurality of connecting seats are mounted on the lifting rod; when the wheel rim positioning device is used, the lifting rod is sleeved with a wheel rim, the peripheral abutting plates can be controlled to abut against the inner wall of the wheel rim by starting the positioning air cylinder, the wheel rim is positioned and fixed, the moving distance of the abutting plates can be adjusted according to different sizes of the wheel rim, and therefore the wheel rim positioning device can be suitable for positioning the wheel rims of various sizes. The position of the rim is prevented from deviating in the drilling process, and meanwhile the tool does not need to be replaced frequently.

Description

Technical Field

[0001] This utility model relates to the field of valve hole processing technology, specifically to a wheel rim valve hole forming equipment. Background Technology

[0002] The valve bore forming process is one of the key steps in wheel manufacturing. During the manufacturing process, the valve bore is usually formed by machining or stamping. The specific process depends on the material of the wheel rim and the production requirements. For aluminum alloy wheel rims, drilling or milling is generally used.

[0003] Chinese Patent Publication No. CN221087351U discloses a valve core drilling fixture for multi-ribbed aluminum rims, including a clamping fixture for positioning the multi-ribbed aluminum rim. The clamping fixture includes a lower mounting plate and a clamping block. This invention mounts the clamping block on a horizontally placed lower mounting plate, which is then fixed to a horizontally placed plate on a drilling machine base. The lower mounting plate provides auxiliary support for the clamping block, improving the load-bearing capacity of the fixture base. Furthermore, the width and length of the clamping block are the same as the spoke spacing and the thickness of the multi-ribbed aluminum rim, enabling auxiliary clamping and positioning of the rim. For other wheel hub shapes, clamping fixtures of corresponding dimensions can be designed, expanding the applicability of the fixture and meeting the requirements for rapid product changeover on production lines. Simultaneously, the clamping block is made of nylon material to prevent scratches during valve drilling, ensuring both load-bearing capacity and processing accuracy.

[0004] In the aforementioned prior art, the position of the wheel rim can be fixed by setting a clamping block. However, the size of the clamping block needs to correspond to the size of the wheel rim, which means that when fixing wheel rims of different sizes, it is necessary to frequently change the clamping block of the corresponding size type, which is cumbersome. Moreover, the drilling angle of the equipment is fixed, which is not convenient to adjust and adapt to changes in the size of the wheel rim. Therefore, a wheel rim valve hole forming equipment is needed to meet people's needs. Utility Model Content

[0005] The purpose of this invention is to provide a wheel rim valve hole forming device to solve the problem in the background art that the valve core drilling fixture requires frequent replacement of the corresponding size type of clamping block when fixing wheel rims of different sizes, which is cumbersome, and the drilling angle is fixed, making it inconvenient to adjust and adapt to changes in wheel rim size.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a wheel rim valve hole forming device, comprising a support frame; a base is mounted on the support frame, a positioning structure is connected to the base, two side baffles are symmetrically mounted above the support frame, a drilling structure is connected between the two side baffles, a bearing seat is connected to the drilling structure, and an adjustment structure is connected to the bearing seat.

[0007] Preferably, the positioning structure includes a positioning cylinder, which is installed inside the base and the support frame. A lifting rod is installed on the telescopic end of the positioning cylinder. Several connecting seats are installed on the lifting rod. Two connecting rods are rotatably installed on the connecting seats. The same pressure plate is rotatably installed at one end of the two connecting rods. The pressure plate is slidably installed above the base.

[0008] Preferably, the base has several T-shaped guide grooves inside, and a T-shaped slide block is slidably installed in the T-shaped guide groove, with the T-shaped slide block installed below the pressure plate.

[0009] Preferably, the drilling structure includes a movable slide block, which is slidably installed between two side baffles. A U-shaped frame is slidably installed on the movable slide block. A movable frame is rotatably installed on the inner wall of the U-shaped frame. An installation plate is installed on one side of the movable frame. A multi-stage cylinder is installed on one side of the installation plate. The telescopic end of the multi-stage cylinder passes through the installation plate and is equipped with a drilling motor. A valve hole drill bit is installed at the output end of the drilling motor.

[0010] Preferably, two lifting control cylinders are symmetrically installed inside the movable slide, and the extension and retraction ends of the two lifting control cylinders are both installed on the U-shaped frame.

[0011] Preferably, the side baffle has a strip-shaped hole inside, and a guide screw is slidably installed in the strip-shaped hole. The guide screw is installed on one side of the movable slide.

[0012] Preferably, a limiting nut is threaded onto the guide screw, and the limiting nut contacts one side of the side baffle.

[0013] Preferably, the adjusting structure includes a worm gear, which is rotatably mounted on two bearing seats. Both bearing seats are mounted on a U-shaped frame. A geared motor is mounted on one side of the corresponding bearing seat. The output end of the geared motor is mounted on one end of the worm gear. A fixed shaft is mounted on the inner wall of the U-shaped frame. The fixed shaft is rotatably mounted inside the movable frame. A worm wheel is rotatably sleeved on the fixed shaft. The worm wheel meshes with the worm gear and is mounted on the inner wall of the movable frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1) When using this utility model, the wheel rim is fitted onto the lifting rod. By opening the positioning cylinder, the surrounding pressure plates can be controlled to press against the inner wall of the wheel rim to position and fix the wheel rim. The movement distance of the pressure plates can be adjusted according to the different wheel rim sizes, so it can be used for positioning wheel rims of various sizes, avoiding the wheel rim from shifting during drilling, and eliminating the need for frequent tooling changes.

[0016] 2) When using this utility model, the wheel rim can be placed on the base. The horizontal position of the drilling motor can be adjusted by loosening the guide screw. The height of the drilling motor can be adjusted by turning on the lifting control cylinder, and the angle of the drilling motor can be adjusted by turning on the reduction motor. This allows the drilling motor to flexibly adjust its height, horizontal position and angle according to the different wheel rim sizes, so that the device can be used for valve hole processing operations of wheel rims of various sizes. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a wheel rim valve hole forming device according to the present invention;

[0018] Figure 2 This is a schematic diagram of the base structure of a wheel rim valve hole forming equipment according to the present invention;

[0019] Figure 3 This is a schematic diagram of the lifting rod structure of a wheel rim valve hole forming equipment according to the present invention;

[0020] Figure 4 This is a schematic diagram of the movable slide structure of a wheel rim valve hole forming equipment according to the present invention;

[0021] Figure 5 This is a schematic diagram of the movable frame structure of a wheel rim valve hole forming equipment according to the present invention;

[0022] Figure 6 This is an exploded view of the movable frame structure of a wheel rim valve hole forming equipment according to this utility model.

[0023] In the diagram: 100, support frame; 200, base; 201, positioning cylinder; 202, lifting rod; 203, connecting seat; 204, connecting rod; 205, pressure plate; 206, T-shaped guide groove; 207, T-shaped slide; 300, side baffle; 301, movable slide; 302, U-shaped frame; 303, movable frame; 304, mounting plate; 305, multi-stage cylinder; 306, drilling motor; 307, valve hole drill bit; 308, lifting control cylinder; 309, strip hole; 310, guide screw; 311, limit nut; 400, shaft seat; 401, worm gear; 402, geared motor; 403, fixed shaft; 404, worm wheel. Detailed Implementation

[0024] 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.

[0025] Example 1:

[0026] Please see Figure 1-6 This utility model provides a technical solution: a wheel rim valve hole forming device, including a support frame 100; a base 200 is installed on the support frame 100, and a positioning structure is connected to the base 200. The positioning structure is used to limit and fix the position of the wheel rim. Two side baffles 300 are symmetrically installed above the support frame 100. A drilling structure is connected between the two side baffles 300. The drilling structure is used to open valve holes in the fixed wheel rim, and the position height can be adjusted according to the wheel rim size. A bearing seat 400 is connected to the drilling structure, and an adjustment structure is connected to the bearing seat 400. The adjustment structure is used to adjust the angle of the drilling structure.

[0027] Furthermore, the positioning structure includes a positioning cylinder 201, which is installed inside the base 200 and the support frame 100. A lifting rod 202 is installed on the telescopic end of the positioning cylinder 201. Several connecting seats 203 are installed on the lifting rod 202. Two connecting rods 204 are rotatably installed on the connecting seats 203. The same pressure plate 205 is rotatably installed at one end of the two connecting rods 204. The pressure plate 205 is slidably installed above the base 200. When the wheel rim is placed around the lifting rod 202, the positioning cylinder 201 is activated to lower the connecting seats 203. When the connecting seats 203 lower, they will push the pressure plates 205 around the wheel rim to move towards the inner wall of the wheel rim through the connecting rods 204. Finally, the pressure plates 205 around the wheel rim are pressed against the inner wall of the wheel rim to position the wheel rim.

[0028] Furthermore, the base 200 has several T-shaped guide grooves 206 inside, which are evenly distributed around the lifting rod 202. A T-shaped slide block 207 is slidably installed in the T-shaped guide groove 206. The T-shaped slide block 207 is installed below the pressure plate 205. When the T-shaped slide block 207 moves, it can slide in the T-shaped guide groove 206, thereby restricting the direction of movement of the T-shaped slide block 207.

[0029] Furthermore, the drilling structure includes a movable slide 301, which is slidably mounted between two side baffles 300. A U-shaped frame 302 is slidably mounted on the movable slide 301. A movable frame 303 is rotatably mounted on the inner wall of the U-shaped frame 302. A mounting plate 304 is mounted on one side of the movable frame 303. A multi-stage cylinder 305 is mounted on one side of the mounting plate 304. The telescopic end of the multi-stage cylinder 305 passes through the mounting plate 304 and is equipped with a drilling motor 306. A valve hole drill bit 307 is mounted on the output end of the drilling motor 306. Turning on the drilling motor 306 can drive the valve hole drill bit 307 to rotate. At the same time, turning on the multi-stage cylinder 305 can push the drilling motor 306 forward, thereby driving the valve hole drill bit 307 to drill into the wheel rim at a set angle and open the valve hole.

[0030] Furthermore, two lifting control cylinders 308 are symmetrically installed inside the movable slide 301. The telescopic ends of the two lifting control cylinders 308 are both installed on the U-shaped frame 302. By opening the lifting control cylinders 308, their telescopic ends can drive the U-shaped frame 302 to lift and lower, thereby adjusting the height of the drilling motor 306.

[0031] Furthermore, the side baffle 300 has a strip-shaped hole 309 inside, and a guide screw 310 is slidably installed in the strip-shaped hole 309. The guide screw 310 is installed on one side of the movable slide 301. Pushing the movable slide 301 can cause it to drive the guide screw 310 to slide in the strip-shaped hole 309. Through the arrangement of the strip-shaped hole 309 and the guide screw 310, the movable slide 301 can be restricted to moving only in the horizontal direction.

[0032] Furthermore, a limiting nut 311 is threaded onto the guide screw 310. The limiting nut 311 contacts one side of the side baffle 300. By tightening the limiting nut 311 onto the guide screw 310, the limiting nut 311 can be pressed against the surface of the side baffle 300, which can limit the position of the movable slide 301. A washer can also be provided between the limiting nut 311 and the movable slide 301 to increase friction and stability. The guide screw 310 is only threaded at the connection with the limiting nut 311, and the part located inside the strip hole 309 is a smooth surface.

[0033] Example 2:

[0034] like Figure 4-6 To facilitate adjustment of the drilling angle of the valve hole drill bit 307 according to the wheel rim size, an adjustment structure is provided. The adjustment structure includes a worm gear 401, which is rotatably mounted on two bearing seats 400. Both bearing seats 400 are mounted on a U-shaped frame 302. A geared motor 402 is mounted on one side of the corresponding bearing seat 400. The output end of the geared motor 402 is mounted on one end of the worm gear 401. A fixed shaft 403 is mounted on the inner wall of the U-shaped frame 302. The fixed shaft 403 is rotatably mounted inside the movable frame 303. A worm wheel 404 is rotatably sleeved on the fixed shaft 403. The worm wheel 404 meshes with the worm gear 401 and is mounted on the inner wall of the movable frame 303. Turning on the geared motor 402 can drive the worm gear 401 to rotate. The rotating worm gear 401 can drive the movable frame 303 to rotate on the fixed shaft 403 through meshing with the worm wheel 404, thereby driving the drilling motor 306 to rotate and adjust the angle.

[0035] The working principle is as follows:

[0036] The wheel rim is placed above the base 200 and around the lifting rod 202. The positioning cylinder 201 is then activated to control the lowering of the lifting rod 202 and several connecting seats 203. As the connecting seats 203 descend, one end of the connecting rod 204 descends and flips, causing the other end of the connecting rod 204 to push the pressure plate 205 towards the inner wall of the wheel rim. Ultimately, the pressure plates 205 around the wheel rim are pressed against the inner wall, limiting and fixing the position of the wheel rim. Rubber pads can be placed at the contact points between the pressure plate 205 and the inner wall of the wheel rim to prevent wear. The position and angle of the drilling motor 306 can then be adjusted according to the size and position of the wheel rim. To adjust, first rotate and loosen the limiting nuts 311 on both sides to release the position restriction on the movable slide 301. Then, pushing the movable slide 301 will cause it to slide along the guide screw 310. 1. The U-shaped frame 302 and the movable frame 303 can be moved, which in turn drives the drilling motor 306 to move horizontally, so that it drives the valve hole drill bit 307 closer to the wheel rim. Then, the lifting control cylinder 308 is activated, which drives the U-shaped frame 302 to rise and fall, thereby adjusting the height of the drilling motor 306. Then, the reduction motor 402 is activated. The output end of the reduction motor 402 can drive the worm 401 to rotate. The rotating worm 401 can drive the movable frame 303 to rotate on the fixed shaft 403 through meshing with the worm wheel 404, thereby driving the drilling motor 306 to rotate and adjust the angle. At this time, the drilling motor 306 is activated to drive the valve hole drill bit 307 to rotate. At the same time, the multi-stage cylinder 305 is activated. The extension end of the multi-stage cylinder 305 will push the drilling motor 306 forward, thereby driving the valve hole drill bit 307 to drill into the wheel rim at a set angle to open the valve hole in the wheel rim.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. The circuits, electronic components and modules involved in the present invention are all prior art and can be fully implemented by those skilled in the art, so there is no need to elaborate. The content protected by the present invention does not involve improvements to software and methods.

Claims

1. A wheel rim valve hole forming device, comprising a support frame (100); characterized in that: A base (200) is installed on the support frame (100), and a positioning structure is connected to the base (200). Two side baffles (300) are symmetrically installed above the support frame (100), and a drilling structure is connected between the two side baffles (300). A bearing seat (400) is connected to the drilling structure, and an adjustment structure is connected to the bearing seat (400).

2. The wheel rim valve hole forming equipment according to claim 1, characterized in that: The positioning structure includes a positioning cylinder (201), which is installed inside the base (200) and the support frame (100). A lifting rod (202) is installed on the telescopic end of the positioning cylinder (201). Several connecting seats (203) are installed on the lifting rod (202). Two connecting rods (204) are rotatably installed on the connecting seats (203). One end of the two connecting rods (204) is rotatably installed with the same pressure plate (205). The pressure plate (205) is slidably installed above the base (200).

3. The wheel rim valve hole forming equipment according to claim 1, characterized in that: The base (200) has several T-shaped guide grooves (206) inside, and a T-shaped slide block (207) is slidably installed in the T-shaped guide groove (206). The T-shaped slide block (207) is installed below the pressure plate (205).

4. The wheel rim valve hole forming equipment according to claim 1, characterized in that: The drilling structure includes a movable slide (301), which is slidably mounted between two side baffles (300). A U-shaped frame (302) is slidably mounted on the movable slide (301). A movable frame (303) is rotatably mounted on the inner wall of the U-shaped frame (302). An installation plate (304) is mounted on one side of the movable frame (303). A multi-stage cylinder (305) is mounted on one side of the installation plate (304). The telescopic end of the multi-stage cylinder (305) passes through the installation plate (304) and is mounted with a drilling motor (306). A valve hole drill bit (307) is mounted on the output end of the drilling motor (306).

5. The wheel rim valve hole forming equipment according to claim 4, characterized in that: The movable slide (301) has two lifting control cylinders (308) symmetrically installed inside, and the telescopic ends of the two lifting control cylinders (308) are both installed on the U-shaped frame (302).

6. The wheel rim valve hole forming equipment according to claim 1, characterized in that: The side baffle (300) has a strip-shaped hole (309) inside, and a guide screw (310) is slidably installed in the strip-shaped hole (309). The guide screw (310) is installed on one side of the movable slide (301).

7. The wheel rim valve hole forming equipment according to claim 6, characterized in that: A limiting nut (311) is threaded onto the guide screw (310), and the limiting nut (311) is in contact with one side of the side baffle (300).

8. The wheel rim valve hole forming equipment according to claim 1, characterized in that: The adjustment structure includes a worm gear (401), which is rotatably mounted on two bearing seats (400). Both bearing seats (400) are mounted on a U-shaped frame (302). A geared motor (402) is mounted on one side of the corresponding bearing seat (400). The output end of the geared motor (402) is mounted on one end of the worm gear (401). A fixed shaft (403) is mounted on the inner wall of the U-shaped frame (302). The fixed shaft (403) is rotatably mounted inside the movable frame (303). A worm wheel (404) is rotatably sleeved on the fixed shaft (403). The worm wheel (404) meshes with the worm gear (401) and is mounted on the inner wall of the movable frame (303).

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