Axle welding positioning device

Abstract

This utility model relates to the field of axle welding technology, specifically an axle welding positioning device. It includes a placement platform and a positioning component housed inside a mounting housing. The positioning component comprises two hollow rollers rotatably connected inside the mounting housing. Multiple receiving grooves are formed at equal angles on the outer surface of each hollow roller. An extension component is disposed inside the hollow rollers, and an arc-shaped extension strip is movably embedded within each receiving groove. In this utility model, the rotation of the two hollow rollers drives the axle placed between them to rotate. Multiple receiving grooves on the surface of the hollow rollers are used to receive the arc-shaped extension strip. When the arc-shaped extension strip moves outward, the hollow rollers rotate. Through the shape of the arc-shaped extension strip itself and the friction of the surface rubber layer, the axle is pushed axially. Thus, the rotation and axial movement of the axle are achieved through the hollow rollers, improving the positioning accuracy of the axle and reducing the impact of axial position deviation on the weld.

Description

Technical Field

[0001] This utility model relates to the field of axle welding technology, specifically an axle welding positioning device. Background Technology

[0002] When welding the axle ends, the axle must first be clamped by a welding positioning device before welding. A ring-shaped weld is formed between the axle body and the axle end. When welding the axle end, the ring-shaped weld is welded. The welding positioning device is used to support the axle. Support components for clamping the axle ends are set at both ends of the positioning device. When welding the axle ends, the axle is first placed above the positioning device, and the two axle ends are placed on the two support components respectively. The operator holds the welding gun to weld the ring-shaped weld.

[0003] When using existing axle welding positioning devices, the axle is placed behind the positioning component. Although the axle can be rotated to adjust the circumferential angle, it is not convenient to accurately adjust its position along its own axis. This can easily lead to a misalignment of the axial relative position between the axle body and the two axle ends. When the gap between one axle end and the axle body is too large (the weld is too wide) and the gap at the other end is too small (the weld is too narrow), the difference in the penetration depth, weld width, and effective load-bearing cross-sectional area of ​​the circumferential welds at both ends becomes too large. This results in the inability to maintain consistent strength between the two axle end welds, affecting the overall reliability and safety of the welded joint. Utility Model Content

[0004] The purpose of this invention is to provide an axle welding positioning device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A wheel axle welding positioning device, comprising: A placement platform, on the upper surface of which mounting shells are symmetrically and fixedly installed; A positioning component is disposed inside the mounting housing. The positioning component includes two hollow rotating rollers rotatably connected inside the mounting housing. Multiple storage grooves are formed at equal angles on the outer surface of the hollow rotating rollers. An extension component is disposed inside a hollow rotating roller. The extension component includes a fixed plate that is fixedly installed inside the hollow rotating roller. Multiple grooves are opened at equal angles on one side surface of the fixed plate. A slider is slidably connected inside the groove. An arc-shaped extension strip is movably embedded inside the receiving groove.

[0006] Furthermore, a protective frame is symmetrically and fixedly installed on the upper surface of the placement platform, a sliding rod is fixedly installed on the upper surface of the protective frame, a U-shaped frame is slidably connected to the outer surface of the sliding rod, and an infrared sensor is fixedly installed on the inner surface of the U-shaped frame.

[0007] Furthermore, a first gear is fixedly installed at one end of the hollow rotating roller, a first motor is fixedly installed on the upper surface of the placement platform, a second gear is fixedly installed at the output end of the first motor and meshes with the two first gears, and a protective shell is provided on the outside of the first gear and the second gear and fixedly connected to the mounting shell.

[0008] Furthermore, a conductive slip ring is fixedly installed on one side surface of the mounting shell, and the inner ring of the conductive slip ring is fixedly connected to the hollow rotating roller.

[0009] Furthermore, a second motor is fixedly installed on one end surface inside the hollow roller, and a rotating plate is fixedly installed on the output end of the second motor. Multiple arc-shaped grooves are equidistantly opened on one side surface of the rotating plate, and one end of the slider passes through the groove and slides to connect with the corresponding arc-shaped groove.

[0010] Furthermore, a top rod is fixedly installed on one side surface of the arc-shaped extension strip, and one end of the top rod is fixedly connected to the slider at the corresponding position.

[0011] Furthermore, the outer surface of the arc-shaped extension strip is wrapped with a rubber anti-slip layer.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The operation of motor one drives two hollow rollers to rotate in the same direction, pushing the axle above them to rotate. Motor two operates, causing the arc-shaped extension strips to move out of the receiving slot. At this time, multiple arc-shaped extension strips support the axle. The rotation of the hollow rollers, through the shape of the arc-shaped extension strips themselves and the friction of the surface rubber anti-slip layer, pushes the axle to rotate and move axially. Thus, the rotation and axial movement of the axle are realized through the hollow rollers, improving the positioning accuracy of the axle and reducing the impact of axial position offset on the weld.

[0013] 2. Adjust the two infrared sensors to both ends of the axle. When there is a misalignment in the axial position of the axle, one infrared sensor will receive the signal normally, while the other infrared sensor will be blocked by the axle and the signal cannot be transmitted. As the axle moves axially, when both infrared sensors can receive the signal normally, it can be determined that the axial position of the axle has moved to the set position, which replaces manual adjustment and observation and improves positioning accuracy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the positioning component and mounting shell structure in this utility model; Figure 3 This is a schematic cross-sectional view of the positioning component in this utility model; Figure 4This is a schematic diagram of the hollow rotating roller and the arc-shaped extension plate structure of this utility model; Figure 5 This is a schematic diagram of the disassembled structure of the epitaxial component in this utility model; Figure 6 This is a schematic diagram of the hollow rotating roller structure in this utility model.

[0015] In the diagram: 1. Placement platform; 101. Mounting shell; 102. Protective frame; 103. Slide bar; 104. U-shaped frame; 105. Infrared sensor; 2. Positioning assembly; 201. Hollow roller; 202. Storage slot; 203. Gear No. 1; 204. Motor No. 1; 205. Gear No. 2; 206. Conductive slip ring; 3. Extension assembly; 301. Motor No. 2; 302. Rotating plate; 303. Fixing plate; 304. Slide groove; 305. Arc groove; 306. Slider; 307. Arc-shaped extension strip; 308. Top rod. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-6 In this embodiment of the present invention, an axle welding positioning device includes a placement platform 1, on which a mounting shell 101 is symmetrically fixedly installed. A positioning component 2 is disposed inside the mounting shell 101. The positioning component 2 includes two hollow rollers 201 rotatably connected inside the mounting shell 101. Multiple receiving grooves 202 are formed at equal angles on the outer surface of the hollow rollers 201. An extension component 3 is disposed inside the hollow rollers 201. The extension component 3 includes a fixing plate 303 fixedly installed inside the hollow rollers 201. Multiple sliding grooves 304 are formed at equal angles on one side surface of the fixing plate 303. A slider 306 is slidably connected inside the sliding groove 304. An arc-shaped extension strip 307 is movably embedded inside the receiving groove 202.

[0018] Specifically, the axle is placed between two positioning components 2. When the arc-shaped extension strip 307 is retracted into the receiving groove 202, the hollow roller 201 rotates, pushing the axle to rotate. When the arc-shaped extension strip 307 moves out of the receiving groove 202, the hollow roller 201 rotates, pushing the axle to rotate and move axially. Example 1

[0019] like Figure 2 and Figure 3As shown, in this embodiment, a first gear 203 is fixedly installed at one end of the hollow roller 201, and a first motor 204 is fixedly installed on the upper surface of the placement platform 1. A second gear 205, which meshes and drives the two first gears 203, is fixedly installed at the output end of the first motor 204. A protective shell, which is fixedly connected to the mounting shell 101, is provided on the outside of the first gear 203 and the second gear 205. The protective shell protects the first gear 203 and the second gear 205 to prevent impurities from entering the gear meshing area.

[0020] In this embodiment, the No. 1 motor 204 operates, driving the No. 2 gear 205 to rotate. Through its meshing transmission with the No. 1 gear 203, the two No. 1 gears 203 rotate in the same direction, driving the two hollow rollers 201 to rotate in the same direction, and pushing the axle above them to rotate.

[0021] like Figure 3 As shown, in this embodiment, a conductive slip ring 206 is fixedly installed on one side surface of the mounting shell 101, and the inner ring of the conductive slip ring 206 is fixedly connected to the hollow roller 201.

[0022] In practice, the wires of the inner ring of the conductive slip ring 206 are electrically connected to the No. 2 motor 301 to provide power for the operation of the No. 2 motor 301.

[0023] like Figure 3-5 As shown, in this embodiment, a second motor 301 is fixedly installed on one end surface of the hollow roller 201. A rotating plate 302 is fixedly installed on the output end of the second motor 301. Multiple arc-shaped grooves 305 are equidistantly opened on one side surface of the rotating plate 302. One end of the slider 306 passes through the groove 304 and is slidably connected to the corresponding arc-shaped groove 305. A top rod 308 is fixedly installed on one side surface of the arc-shaped extension strip 307. One end of the top rod 308 is fixedly connected to the corresponding slider 306. The outer surface of the arc-shaped extension strip 307 is wrapped with a rubber anti-slip layer. The rubber anti-slip layer increases the friction between the arc-shaped extension strip 307 and the axle, making it easier for the arc-shaped extension strip 307 to push the axle to move.

[0024] In practice, motor 301 operates, driving the rotating plate 302 to rotate, causing the arc-shaped groove 305 to push the slider 306 to move. Under the sliding limit of the slider 306 and the groove 304, the slider 306 moves along the groove 304, pushing the arc-shaped extension strip 307 out of the receiving groove 202. At this time, the hollow roller 201 does not contact the axle. The axle is supported by multiple arc-shaped extension strips 307. The hollow roller 201 rotates, and through the shape of the arc-shaped extension strips 307 and the friction of the surface rubber anti-slip layer, it pushes the axle to rotate and move axially. Thus, the rotation and axial movement of the axle are realized through the hollow roller 201, improving the positioning accuracy of the axle and reducing the impact of axial position offset on the weld. Example 2

[0025] Based on Example 1, in order to solve the problem of poor accuracy in adjusting the axial position of the axle by manual observation and control.

[0026] like Figure 1 and Figure 2 As shown, in this embodiment, a protective frame 102 is symmetrically fixedly installed on the upper surface of the placement platform 1. The protective frame 102 protects the No. 1 motor 204 and prevents welding slag from falling onto the surface of the No. 1 motor 204. A sliding rod 103 is fixedly installed on the upper surface of the protective frame 102. A U-shaped frame 104 is slidably connected to the outer surface of the sliding rod 103. An infrared sensor 105 is fixedly installed on the inner surface of the U-shaped frame 104. The infrared sensor 105 consists of an infrared emitting module and an infrared receiving module. The infrared receiving module receives the infrared light emitted by the infrared emitting module and converts it into an electrical signal to determine whether there is an object between them.

[0027] In practice, the two infrared sensors 105 are adjusted to the two ends of the axle. When there is a shift in the axial position of the axle, one infrared sensor 105 receives the signal normally, while the other infrared sensor 105 is blocked by the axle and cannot transmit the signal. As the axle moves axially, when both infrared sensors 105 can receive the signal normally, it is determined that the axial position of the axle has moved to the set position, replacing manual adjustment and observation and improving positioning accuracy.

[0028] In this utility model, in order to facilitate the operator's control of the utility model, a PLC controller can be set up, and the infrared sensor 105, motor 204 and motor 301 are all electrically connected to the PLC controller. The PLC controller is existing technology and will not be described in detail here.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wheel axle welding positioning device, characterized in that, include: Placement platform (1), on which mounting shells (101) are symmetrically fixedly installed on the upper surface of the placement platform (1); The positioning component (2) is located inside the mounting shell (101). The positioning component (2) includes two hollow rollers (201) rotatably connected inside the mounting shell (101). Multiple storage slots (202) are opened at equal angles on the outer surface of the hollow rollers (201). An extension component (3) is disposed inside a hollow rotating roller (201). The extension component (3) includes a fixed plate (303) fixedly installed inside the hollow rotating roller (201). A plurality of sliding grooves (304) are opened at equal angles on one side surface of the fixed plate (303). A slider (306) is slidably connected inside the sliding groove (304). An arc-shaped extension strip (307) is movably embedded inside the receiving groove (202).

2. The axle welding positioning device according to claim 1, characterized in that, A protective frame (102) is symmetrically fixedly installed on the upper surface of the placement platform (1). A sliding rod (103) is fixedly installed on the upper surface of the protective frame (102). A U-shaped frame (104) is slidably connected to the outer surface of the sliding rod (103). An infrared sensor (105) is fixedly installed on the inner surface of the U-shaped frame (104).

3. The axle welding positioning device according to claim 1, characterized in that, One end of the hollow roller (201) is fixedly installed with a first gear (203), and a first motor (204) is fixedly installed on the upper surface of the placement platform (1). The output end of the first motor (204) is fixedly installed with a second gear (205) that meshes and drives with the two first gears (203). The outer sides of the first gear (203) and the second gear (205) are provided with protective shells that are fixedly connected to the mounting shell (101).

4. The axle welding positioning device according to claim 1, characterized in that, A conductive slip ring (206) is fixedly installed on one side surface of the mounting shell (101), and the inner ring of the conductive slip ring (206) is fixedly connected to the hollow roller (201).

5. The axle welding positioning device according to claim 1, characterized in that, A second motor (301) is fixedly installed on one end surface of the hollow roller (201). A rotating plate (302) is fixedly installed on the output end of the second motor (301). Multiple arc-shaped grooves (305) are equidistantly opened on one side surface of the rotating plate (302). One end of the slider (306) passes through the sliding groove (304) and is slidably connected to the arc-shaped groove (305) at the corresponding position.

6. The axle welding positioning device according to claim 1, characterized in that, A top rod (308) is fixedly installed on one side surface of the arc-shaped extension strip (307), and one end of the top rod (308) is fixedly connected to the slider (306) at the corresponding position.

7. The axle welding positioning device according to claim 1, characterized in that, The outer surface of the arc-shaped extension strip (307) is covered with a rubber anti-slip layer.

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