Automobile transmission shaft welding device

Abstract

The invention relates to the technical field of transmission shaft welding, in particular to an automobile transmission shaft welding device which mainly comprises a base, a supporting frame installed on the top face of the base, a moving assembly installed on the inner wall of the supporting frame, an electric push rod installed on the moving assembly and a fixing mechanism arranged above the base. The fixing mechanism comprises a fixing frame fixedly installed on the top face of the base and a guide mechanism, and the guide mechanism is arranged above the base. When a clamping block moves and is opened, the clamping block drives a spur rack to move, the spur rack drives a half gear to rotate by a certain angle, the half gear drives a rotating shaft and a fixing frame to rotate by a certain angle, the fixing frame drives a guide wheel to rotate by a certain angle, and the guide wheel supports and guides the outer wall of a shaft tube, so that the position of the shaft tube is adjusted, and the shaft tube is taken down; the shaft tube does not need to be in contact with the clamping blocks, it is guaranteed that the outer wall of the shaft tube and the welding position are not prone to being scratched and damaged due to friction of the clamping blocks, and then the attractiveness of the shaft tube and the welding quality are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of drive shaft welding technology, specifically to a welding device for automotive drive shafts. Background Technology

[0002] As a core component of the power transmission system, the automotive driveshaft is responsible for efficiently and smoothly transmitting engine power to the wheels, and its performance directly affects the vehicle's driving stability, handling, and safety. The driveshaft is a high-speed, low-support rotating body, therefore its dynamic balance is crucial. Generally, driveshafts undergo dynamic balancing tests and adjustments on a balancing machine before leaving the factory. During the manufacturing process, the driveshaft tube is welded to the driveshaft fork using a welding device.

[0003] When welding a shaft tube, the shaft tube must first be placed manually on the clamping plate and moved to a suitable position. The clamping plate then clamps and fixes the shaft tube. To increase the friction between the clamping plate and the shaft tube, the clamping surface of the clamping plate is usually designed to be concave and convex. When the shaft tube moves to the designated position on the clamping surface of the clamping plate, the clamping plate can easily cause scratches on the outer wall of the shaft tube and the weld, thus affecting the aesthetics and the quality of the weld. Summary of the Invention

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

[0005] To achieve the above objectives, the present invention provides the following technical solution: A welding device for automotive drive shafts includes: a base, a support frame mounted on the top surface of the base, a movable component mounted on the inner wall of the support frame, an electric push rod mounted on the movable component, and a welding head mounted on the lower end of the electric push rod; and further includes: The fixing mechanism is located above the base. The fixing mechanism includes a fixed frame that is fixedly installed on the top surface of the base, a movable frame that is located above the base, and a fixing sleeve that is rotatably installed on the inner wall of the movable frame and the inner wall of the fixed frame through bearings. Three clamping blocks are provided on one side of the fixing sleeve. The guide mechanism is located above the base and includes three guide wheels located on one side of the fixed sleeve. The guide wheels are rotatably connected to the fixed frame via a connecting shaft.

[0006] Preferably, a movable groove is provided on the top surface of the base, and a T-shaped block is slidably installed on the inner wall of the movable groove. The top surface of the T-shaped block is fixedly connected to the bottom surface of the movable frame. A cylinder is fixedly installed on the side of the base, and one end of the cylinder slides through the side of the base and is fixedly connected to the side of the T-shaped block.

[0007] Preferably, the side of the fixing sleeve has three T-shaped grooves, the inner wall of the T-shaped grooves is slidably connected to the side of the clamping block, and an adjusting rod is fixedly installed on the side of the clamping block.

[0008] Preferably, the fixed sleeve has a groove on its side, the inner wall of the T-shaped groove has a strip groove, the inner wall of the groove is rotatably mounted with an adjustment frame via a bearing, the side of the adjustment frame has three arc grooves, and the outer wall of the adjustment rod is slidably connected to the inner wall of the arc groove and the inner wall of the strip groove.

[0009] Preferably, an arc-shaped rack is fixedly installed on the outer wall of the adjusting frame, a motor is fixedly installed on the outer wall of the fixing sleeve, a gear is fixedly installed on the outer wall of the output rod of the motor, and the outer wall of the gear meshes with the outer wall of the arc-shaped rack.

[0010] Preferably, a toothed ring is fixedly installed on the outer wall of the fixed sleeve, and an installation groove is opened on the side of the moving frame, with a motor fixedly installed on the inner wall of the installation groove.

[0011] Preferably, a second gear is fixedly installed on the outer wall of the output rod of the second motor, and the outer wall of the second gear meshes with the outer wall of the gear ring.

[0012] Preferably, three sets of fixing strips are fixedly installed on the side of the fixing sleeve, and a rotating shaft is rotatably installed on the side of the fixing strip via a bearing. The outer wall of the rotating shaft is fixedly connected to one end of the fixing frame.

[0013] Preferably, a half gear is fixedly installed on the outer wall of the shaft.

[0014] Preferably, a rack is fixedly installed on the side of the clamping block, and the side of the rack meshes with the outer wall of the half gear.

[0015] Compared with the prior art, the beneficial effects of the present invention are: When the clamping block moves to open, it drives the rack to move, which in turn drives the half gear to rotate at a certain angle. The half gear then drives the rotating shaft and the fixed frame to rotate at a certain angle, and the fixed frame drives the guide wheel to rotate at a certain angle. The guide wheel supports and guides the outer wall of the shaft tube, thereby adjusting the position of the shaft tube and removing it without the shaft tube contacting the clamping block. This ensures that the outer wall of the shaft tube and the welding position are not easily scratched or damaged by the friction of the clamping block, thus ensuring the aesthetics of the shaft tube and the quality of the welding. By activating motor one, gear one rotates, which in turn rotates the arc-shaped rack and adjusting frame by a certain angle. The arc-shaped groove on the adjusting frame moves the adjusting rod, which in turn moves the clamping block. The clamping block moves closer to the shaft tube, while the guide wheel moves away from the outer wall of the shaft tube. The clamping block clamps and fixes the outer wall of the shaft tube, making it less prone to shaking and displacement during welding, thus improving the accuracy and quality of the welding. Motor two drives gear two to rotate, which in turn rotates the gear ring and fixing sleeve, causing the shaft tube to rotate. This allows for convenient and comprehensive welding of the outer wall of the shaft tube, improving welding efficiency and quality. Attached Figure Description

[0016] Figure 1This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the bottom of the three-dimensional structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a three-dimensional structural diagram of the fixing sleeve of the present invention; Figure 5 This is an exploded view of the three-dimensional structure of the adjustment frame of the present invention; Figure 6 For the present invention Figure 6 Enlarged view at point B in the middle; Figure 7 This is an exploded view of the three-dimensional structure of the clamping block of the present invention; Figure 8 This is an exploded view of the three-dimensional structure of the straight rack of the present invention.

[0017] In the picture: 1. Base; 101. Support frame; 102. Moving component; 103. Electric actuator; 104. Welding head; 2. Fixing mechanism; 201. Fixing frame; 202. Moving groove; 203. T-block; 204. Cylinder; 205. Moving frame; 206. Fixing sleeve; 207. Clamping block; 208. T-groove; 209. Adjusting rod; 210. Strip groove; 211. Groove body; 212. Adjusting frame; 213. Arc groove; 214. Arc rack; 215. Motor 1; 216. Gear 1; 217. Gear ring; 218. Mounting groove; 219. Motor 2; 220. Gear 2; 3. Guiding mechanism; 301. Fixing bar; 302. Rotating shaft; 303. Fixing frame; 304. Guide wheel; 305. Half gear; 306. Straight rack. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] like Figures 1-8As shown, this application provides an automotive driveshaft welding device, including: a base 1, a support frame 101 mounted on the top surface of the base 1, a movable assembly 102 mounted on the inner wall of the support frame 101, an electric push rod 103 mounted on the movable assembly 102, a welding head 104 mounted on the lower end of the electric push rod 103, the movable assembly 102 consisting of a servo motor, a screw, and a movable frame, the servo motor driving the screw to rotate while the screw drives the movable frame to move, the electric push rod 103 mounted on the inner wall of the movable frame, and further including: The fixing mechanism 2 is located above the base 1. The fixing mechanism 2 includes a fixing frame 201 fixedly installed on the top surface of the base 1, a movable frame 205 is provided above the base 1, and a fixing sleeve 206 is rotatably installed on the inner wall of the movable frame 205 and the inner wall of the fixing frame 201 through bearings. Three clamping blocks 207 are provided on one side of the fixing sleeve 206. Specifically, such as Figures 1-8 As shown, a movable groove 202 is provided on the top surface of the base 1, and a T-shaped block 203 is slidably installed on the inner wall of the movable groove 202. The top surface of the T-shaped block 203 is fixedly connected to the bottom surface of the movable frame 205. A cylinder 204 is fixedly installed on the side of the base 1, and one end of the cylinder 204 slides through the side of the base 1 and is fixedly connected to the side of the T-shaped block 203.

[0021] In this embodiment: the position of the welding head 104 can be adjusted by the movable component 102, so that the welding head 104 can weld different positions of the workpiece. The electric push rod 103 can drive the welding head 104 to move up and down, so that the welding head 104 moves to a suitable position to weld the workpiece. The movable groove 202 is "T" shaped, and the movable groove 202 limits the T-shaped block 203, so that the T-shaped block 203 and the movable frame 205 move more stably. The cylinder 204 pushes the T-shaped block 203 to move, and further pushes the movable frame 205 to move, ensuring that workpieces of different lengths can be welded.

[0022] Specifically, such as Figures 1-8 As shown, the fixed sleeve 206 has three T-shaped grooves 208 on its side. The inner wall of the T-shaped groove 208 is slidably connected to the side of the clamping block 207. An adjusting rod 209 is fixedly installed on the side of the clamping block 207.

[0023] In this embodiment: the T-shaped groove 208 is used to limit the clamping block 207, making the movement of the clamping block 207 more stable. The clamping block 207 has a clamping groove on its side to increase the friction between the clamping block 207 and the shaft tube, ensuring that the shaft tube is not prone to displacement and slippage during welding, and improving the accuracy of welding.

[0024] Specifically, such as Figures 1-8As shown, the fixed sleeve 206 has a groove 211 on its side, and the inner wall of the T-shaped groove 208 has a strip groove 210, the length direction of which is parallel to the radial direction of the fixed sleeve 206. The inner wall of the groove 211 is rotatably mounted with an adjustment frame 212 through a bearing. The side of the adjustment frame 212 has three arc-shaped grooves 213. The outer wall of the adjustment rod 209 is slidably connected to the inner wall of the arc-shaped groove 213 and the inner wall of the strip groove 210.

[0025] In this embodiment: when the adjustment frame 212 is rotated by a certain angle, the arc groove 213 on the adjustment frame 212 drives the adjustment rod 209 and the clamping block 207 to rotate by a certain angle, so that the clamping block 207 clamps and fixes the outer wall of the shaft tube.

[0026] Specifically, such as Figures 1-8 As shown, an arc-shaped rack 214 is fixedly installed on the outer wall of the adjusting frame 212, a motor 215 is fixedly installed on the outer wall of the fixing sleeve 206, a gear 216 is fixedly installed on the outer wall of the output rod of the motor 215, and the outer wall of the gear 216 meshes with the outer wall of the arc-shaped rack 214.

[0027] In this embodiment: the motor 215 drives the gear 216 to rotate, the gear 216 drives the arc rack 214 to rotate at a certain angle, and drives the adjustment frame 212 to rotate at a certain angle.

[0028] Specifically, such as Figures 1-8 As shown, a gear ring 217 is fixedly installed on the outer wall of the fixed sleeve 206, and an installation groove 218 is opened on the side of the movable frame 205. A motor 219 is fixedly installed on the inner wall of the installation groove 218.

[0029] In this embodiment, the motor 219 is fixed by the fixed sleeve 206.

[0030] Specifically, such as Figures 1-8 As shown, a gear 220 is fixedly installed on the outer wall of the output rod of motor 219, and the outer wall of gear 220 meshes with the outer wall of gear ring 217.

[0031] In this embodiment: the motor 219 drives the gear 220 to rotate, the gear 220 drives the gear ring 217 and the fixed sleeve 206 to rotate, and drives the shaft tube to rotate, thereby facilitating the comprehensive welding of the outer wall of the shaft tube and improving the welding efficiency and quality.

[0032] The guide mechanism 3 is located above the base 1. The guide mechanism 3 includes three guide wheels 304 located on one side of the fixed sleeve 206. The guide wheels 304 are rotatably connected to the fixed frame 303 through the connecting shaft.

[0033] Specifically, such as Figures 1-8As shown, three sets of fixing strips 301 are fixedly installed on the side of the fixing sleeve 206. A rotating shaft 302 is installed through the side of the fixing strip 301 via a bearing. The outer wall of the rotating shaft 302 is fixedly connected to one end of the fixing frame 303.

[0034] In this embodiment: the fixed bar 301 limits the rotation shaft 302, and the rotation shaft 302 can rotate relative to the fixed bar 301. The outer wall of the rotation shaft 302 is fixedly connected to one end of the fixed frame 303. When the rotation shaft 302 rotates, it drives the fixed frame 303 to rotate.

[0035] Specifically, such as Figures 1-8 As shown, a half gear 305 is fixedly installed on the outer wall of the rotating shaft 302.

[0036] In this embodiment, the half gear 305 is installed and fixed by the provided rotating shaft 302.

[0037] Specifically, such as Figures 1-8 As shown, a rack 306 is fixedly installed on the side of the clamping block 207, and the side of the rack 306 meshes with the outer wall of the half gear 305.

[0038] In this embodiment: the rack 306 is driven to move when the clamping block 207 moves. The movement of the rack 306 drives the half gear 305 to rotate at a certain angle. The half gear 305 drives the rotating shaft 302, the fixing frame 303 and the guide wheel 304 to rotate at a certain angle. The guide wheel 304 supports and guides the outer wall of the shaft tube, so that the shaft tube can move easily and ensures that the outer wall is not easily scratched when the shaft tube moves.

[0039] The specific solution is as follows: Based on the diameter of the shaft tube, motor 215 is turned on, driving gear 216 to rotate. Gear 216 drives the arc-shaped rack 214 and adjusting frame 212 to rotate a certain angle. The arc-shaped groove 213 on the adjusting frame 212 drives the adjusting rod 209 to move. The adjusting rod 209 drives the clamping block 207 to move, moving the clamping block 207 away from the shaft tube. The clamping block 207 drives the straight rack 306 to move, which in turn drives the half gear 305 to rotate a certain angle. The half gear 305 then drives the rotating shaft 302 and the fixing frame 303 to rotate a certain angle. The frame 303 drives the guide wheel 304 to rotate at a certain angle, so that the diameter between the three guide wheels 304 is slightly larger than the outer wall diameter of the shaft tube. The shaft tube is placed in the middle of the three guide wheels 304, and the shaft tube is pushed to a suitable position. The motor 215 is turned on, which drives the gear 216 to rotate. The gear 216 drives the arc rack 214 and the adjusting frame 212 to rotate at a certain angle. The arc groove 213 on the adjusting frame 212 drives the adjusting rod 209 to move. The adjusting rod 209 drives the clamping block 207 to move. The clamping block 207 moves closer to the shaft tube, while the guide wheels 304 move away. The clamping block 207 clamps and fixes the outer wall of the shaft tube. The moving assembly 102 moves the welding head 104 to a suitable position. The electric push rod 103 moves the welding head 104 downwards to the welding point of the shaft tube for welding. The motor 219 is activated, driving the gear 220 to rotate. The gear 220 drives the gear ring 217 and the fixing sleeve 206 to rotate, thus rotating the shaft tube. This allows the welding head 104 to perform comprehensive welding on the outer wall of the shaft tube. After welding, the motor 215 is activated, driving the gear 216 to rotate. The gear 216 drives the arc-shaped... The rack 214 and the adjusting frame 212 rotate at a certain angle, the arc groove 213 on the adjusting frame 212 drives the adjusting rod 209 to move, the adjusting rod 209 drives the clamping block 207 to move, the clamping block 207 moves away from the shaft tube, the clamping block 207 drives the straight rack 306 to move, the straight rack 306 drives the half gear 305 to rotate at a certain angle, the half gear 305 drives the rotating shaft 302 and the fixed frame 303 to rotate at a certain angle, the fixed frame 303 drives the guide wheel 304 to rotate at a certain angle, the three guide wheels 304 contact the outer wall of the shaft tube, and the welded shaft tube can be pulled out.

[0040] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

[0041] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A welding device for automotive drive shafts, comprising: A base (1), on the top surface of which a support frame (101) is mounted, a movable component (102) is mounted on the inner wall of the support frame (101), an electric push rod (103) is mounted on the movable component (102), and a welding head (104) is mounted on the lower end of the electric push rod (103). The base (1) is characterized by further comprising: The fixing mechanism (2) is located above the base (1). The fixing mechanism (2) includes a fixing frame (201) fixedly installed on the top surface of the base (1). A movable frame (205) is provided above the base (1). The inner wall of the movable frame (205) and the inner wall of the fixing frame (201) are both rotatably mounted with a fixing sleeve (206) through a bearing. Three clamping blocks (207) are provided on one side of the fixing sleeve (206). The guide mechanism (3) is located above the base (1). The guide mechanism (3) includes three guide wheels (304) located on one side of the fixed sleeve (206). The guide wheels (304) are rotatably connected to the fixed frame (303) via the connecting shaft.

2. The automotive driveshaft welding device according to claim 1, characterized in that, The base (1) has a moving groove (202) on its top surface. A T-shaped block (203) is slidably installed on the inner wall of the moving groove (202). The top surface of the T-shaped block (203) is fixedly connected to the bottom surface of the moving frame (205). A cylinder (204) is fixedly installed on the side of the base (1). One end of the cylinder (204) slides through the side of the base (1) and is fixedly connected to the side of the T-shaped block (203).

3. The automotive driveshaft welding device according to claim 2, characterized in that, The fixed sleeve (206) has three T-shaped grooves (208) on its side. The inner wall of the T-shaped groove (208) is slidably connected to the side of the clamping block (207). An adjusting rod (209) is fixedly installed on the side of the clamping block (207).

4. The automotive driveshaft welding device according to claim 3, characterized in that, The fixed sleeve (206) has a groove (211) on its side, and the inner wall of the T-shaped groove (208) has a strip groove (210). The inner wall of the groove (211) is rotatably mounted with an adjustment frame (212) via a bearing. The side of the adjustment frame (212) has three arc-shaped grooves (213). The outer wall of the adjustment rod (209) is slidably connected to the inner wall of the arc-shaped groove (213) and the inner wall of the strip groove (210).

5. The automotive driveshaft welding device according to claim 4, characterized in that, An arc-shaped rack (214) is fixedly installed on the outer wall of the adjusting frame (212), a motor (215) is fixedly installed on the outer wall of the fixing sleeve (206), a gear (216) is fixedly installed on the outer wall of the output rod of the motor (215), and the outer wall of the gear (216) meshes with the outer wall of the arc-shaped rack (214).

6. The automotive driveshaft welding device according to claim 5, characterized in that, A gear ring (217) is fixedly installed on the outer wall of the fixed sleeve (206), and an installation groove (218) is opened on the side of the moving frame (205). A motor (219) is fixedly installed on the inner wall of the installation groove (218).

7. The automotive driveshaft welding device according to claim 6, characterized in that, The output rod of the second motor (219) is fixedly mounted with a second gear (220), and the outer wall of the second gear (220) meshes with the outer wall of the gear ring (217).

8. The automotive driveshaft welding device according to claim 1, characterized in that, Three sets of fixing strips (301) are fixedly installed on the side of the fixing sleeve (206). A rotating shaft (302) is rotatably installed on the side of the fixing strip (301) through a bearing. The outer wall of the rotating shaft (302) is fixedly connected to one end of the fixing frame (303).

9. The automotive driveshaft welding device according to claim 8, characterized in that, A half gear (305) is fixedly installed on the outer wall of the rotating shaft (302).

10. The automotive driveshaft welding device according to claim 9, characterized in that, A rack (306) is fixedly installed on the side of the clamping block (207), and the side of the rack (306) meshes with the outer wall of the half gear (305).

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