Differential shell machining clamping device

Abstract

The invention relates to the technical field of welding equipment, in particular to a differential shell machining clamping device which comprises an air guide mechanism, the air guide mechanism comprises a base, a seat and an air guide component, the seat is fixedly connected to the top of the base, and the air guide component is arranged on the base. During use, an existing differential shell is placed on the top of the carrier plate, and then two limiting worms are rotated, so that the limiting worms are matched with limiting worm gears to drive corresponding bidirectional threaded rods to rotate; the rotating two-way threaded rod can drive the two corresponding first clamping blocks and the two corresponding second clamping blocks to be matched with the clamping pieces to be extruded and attached to the inner wall of an existing differential shell, or the two first clamping blocks and the two second clamping blocks can be matched with the clamping pieces to be extruded and attached to the outer surface of the existing differential shell; and at the moment, a linkage motor is controlled to be started, and the linkage motor is matched with a linkage worm and a linkage worm wheel to drive a second linkage gear to rotate.

Description

Technical Field

[0001] The present invention belongs to the technical field of welding equipment, and specifically relates to a clamping device for machining a differential housing. Background Art

[0002] An automotive differential is a mechanism that enables the left and right drive wheels to rotate at different speeds. It mainly consists of left and right axle gears, two planetary gears, and a gear carrier. Its function is to allow the left and right wheels to roll at different speeds when the vehicle is turning or driving on an uneven road surface, that is, to ensure that both drive wheels perform pure rolling motion. The differential is installed to adjust the speed difference between the left and right wheels.

[0003] However, in the prior art, during the welding maintenance process of the existing differential housing, the actual clamping position of the existing welding clamping equipment is fixed. Therefore, it is necessary to continuously release and re-fix the position of the differential, resulting in a low actual welding efficiency. At the same time, during the actual continuous welding process, the temperature of the existing differential housing is likely to change significantly, which will affect the welding position during the cooling process of the existing differential housing. In addition, harmful gases are easily generated during the welding process, which is more likely to affect the physical health of welding workers. Summary of the Invention

[0004] The purpose of the present invention is to provide a clamping device for machining a differential housing that can efficiently clamp and restrict differential housings of different specifications, improve the actual welding efficiency, prevent the temperature of the differential housing from remaining at a high level for a long time, and promptly discharge harmful gases to ensure the physical health of welding workers.

[0005] The technical solution adopted by the present invention is as follows: A clamping device for machining a differential housing includes: a gas guiding mechanism, the gas guiding mechanism includes a base, a seat, and a gas guiding component, the seat is fixedly connected to the top of the base, and the gas guiding component is arranged on the base;

[0006] A support mechanism, the support mechanism includes an installation frame, a bottom shaft, a connection frame, a turntable, an adjustment component, and a driving component, the installation frame is fixedly connected to the inside of the base, the bottom shaft is rotatably connected to the bottom surface inside the installation frame, a connection shaft is slidably inserted into the top of the bottom shaft, the connection frame is fixedly connected to the inside of the installation frame, the turntable is rotatably connected to the top of the connection frame, a moving threaded rod is rotatably connected to the top of the turntable, and both the adjustment component and the driving component are arranged on the installation frame; and

[0007] A limiting mechanism, the limiting mechanism includes a moving table, a carrier plate, and a limiting component, the moving table is slidably inserted into the top of the turntable, the carrier plate is fixedly connected to the top of the moving table, and the limiting component is arranged on the moving table and the carrier plate.

[0008] Among them, the air guiding component includes a side plate, an air guiding frame, a fan, and an air extraction frame. The side plate is fixedly connected to the base. The fan is communicated and arranged at one end of the air guiding frame. The air extraction frame is fixedly connected to the top of the side plate, and an air inlet is formed on the outer surface of the air extraction frame.

[0009] Among them, a linkage groove is formed at the top of the connecting shaft. One end of the air guiding frame extends into the installation frame, and the inside of the air guiding frame is communicated with the inside of the connecting frame. A guiding ring is communicated and arranged at the top of the connecting frame.

[0010] Among them, a moving worm gear is sleeved on the outer surface of the moving threaded rod. The top of the turntable is rotatably connected with a moving worm. The moving worm is meshed with the moving worm gear. Two clamping strips are fixedly connected to the top of the turntable by bolts. The moving table is in threaded connection with the moving threaded rod.

[0011] Among them, the driving component includes a first linkage gear, a second linkage gear, a linkage worm gear, a linkage worm, and a linkage motor. The first linkage gear is sleeved on the outer surface of the bottom shaft. The second linkage gear is rotatably connected to the inner bottom surface of the installation frame. The second linkage gear is meshed with the first linkage gear. The linkage worm gear is fixedly connected to one end of the second linkage gear. The linkage worm is rotatably connected to the inner bottom surface of the installation frame. The linkage motor is fixedly connected to the inner bottom surface of the installation frame, and the output end of the linkage motor is fixedly connected to one end of the linkage worm.

[0012] Among them, the adjusting component includes an adjusting frame, a lifting frame, a first rack, a sliding frame, a second rack, a pressing frame, and a plurality of reset frames. The adjusting frame is fixedly connected to the inner bottom surface of the installation frame. The lifting frame is slidably inserted into the top of the adjusting frame. One end of the lifting frame is rotatably connected to the connecting shaft. The first rack is fixedly connected to the outer surface of one side of the lifting frame. The sliding frame is fixedly connected to the outer surface of the adjusting frame. The second rack is slidably inserted into the sliding frame. The pressing frame is fixedly connected to the outer surface of one side of the second rack, and one end of the pressing frame slidably penetrates through the installation frame. A plurality of the reset frames are fixedly connected to the inner bottom surface of the installation frame. A support spring is inserted into each of the reset frames. A support rod slidably penetrates through the top of each of the reset frames. The top end of each support rod and the bottom of the pressing frame are fixedly connected, and the bottom end of each support rod is fixedly connected with a pressing piece.

[0013] Among them, a synchronous gear is rotatably connected to the inner wall of the adjusting frame, and the synchronous gear is meshed with both the first rack and the second rack.

[0014] Among them, a pedal is slidably inserted into the top of the installation frame. The bottom end of the pedal is fixedly connected to the top of the pressing frame. A pushing block is fixedly connected to the bottom of the turntable.

[0015] Wherein, the limiting component includes two bidirectional threaded rods, two first clamping blocks, two second clamping blocks, two limiting worm wheels and two limiting worm shafts. Both of the two bidirectional threaded rods are rotatably connected to the bottom of the carrier plate. Both of the two first clamping blocks are threadedly connected to the outer surface of one of the bidirectional threaded rods. Both of the two second clamping blocks are threadedly connected to the outer surface of the other bidirectional threaded rod. The two limiting worm wheels are respectively sleeved on the outer surfaces of the two bidirectional threaded rods. Both of the two limiting worm shafts are rotatably connected to the top of the moving platform. Each of the limiting worm shafts meshes with the corresponding limiting worm wheel. Clamping pieces are slidably inserted into the tops of the two first clamping blocks and the two second clamping blocks.

[0016] A method for using a clamping device for machining a differential housing includes the following steps:

[0017] S1. Continuous welding: Place the existing differential housing on the top of the carrier plate. Then, by rotating the two limiting worm shafts, the limiting worm shafts can drive the corresponding bidirectional threaded rods to rotate in cooperation with the limiting worm wheels, so that the rotating bidirectional threaded rods can drive the corresponding two first clamping blocks and two second clamping blocks to cooperate with the clamping pieces to squeeze and fit against the inner wall of the existing differential housing, or the two first clamping blocks and two second clamping blocks can cooperate with the clamping pieces to squeeze and fit against the outer surface of the existing differential housing, so that the existing differential housing to be welded can be stably placed on the top of the carrier plate. At this time, by controlling the start of the linkage motor, the linkage motor can drive the second linkage gear to rotate in cooperation with the linkage worm shaft and the linkage worm wheel. The rotating second linkage gear can drive the bottom shaft to rotate in cooperation with the first linkage gear. The rotating bottom shaft can drive the connecting shaft to rotate. Then, when the welder steps on the pedal with the foot, the pressing frame will be synchronously pushed down during the downward movement of the pedal. Then, under the position limitation of the sliding frame, the pressing frame can drive the second rack to move downward synchronously. The second rack during the downward movement can drive the first rack to move upward synchronously in cooperation with the synchronous gear. Then, under the position limitation of the adjusting frame, the first rack can drive the lifting frame to rise. The rising lifting frame synchronously drives the connecting shaft to rise until the top of the connecting shaft fits against the bottom of the turntable. At this time, the push block can be fully inserted into the linkage groove. Then, under the friction effect between the top of the connecting shaft and the bottom of the turntable, and the blocking effect of the linkage groove on the push block, the connecting shaft can drive the turntable to rotate synchronously, so that the rotating turntable can drive the moving platform to rotate. The rotating moving platform can drive the existing differential housing to be welded to rotate in cooperation with the carrier plate. Then, when the welder stops stepping on the pedal with the foot, the connecting shaft and the turntable are separated, and the moving platform and the carrier plate stop rotating.

[0018] S2. Environmental adjustment: According to the existing specifications of the differential housing outer shell, by rotating and moving the worm, the rotating and moving worm can drive the moving screw rod to rotate in cooperation with the moving worm wheel. The rotating moving screw rod can move and adjust the position of the moving table, causing the rotation center of the moving table in the vertical direction to deviate from the rotation center of the turntable. Thus, the welding position relative to the rotation center of the turntable can be adjusted according to the actual structure of the existing differential housing, facilitating continuous welding. At the same time, by controlling the start of the fan, the fan can suck and accelerate the air below the moving table through the air guide frame and the connection frame and discharge it from the bottom end of the air extraction frame, accelerating the air flow around the moving table and the carrier plate, preventing excessive temperature changes in the existing differential housing during continuous welding, improving the actual welding quality. When the fan discharges the high-speed flowing air from the bottom end of the air extraction frame, a negative pressure effect is generated at the bottom of the air extraction frame, enabling the air extraction frame to timely extract the harmful gases generated during the welding process above the carrier plate through the air inlet and discharging them synchronously with the high-speed air flow discharged by the fan;

[0019] S3. Intermittent welding: When the linkage motor stops running, the moving table can be conveniently rotated and adjusted manually. At the same time, by stepping on the pedal, the stopped rotating connecting shaft can squeeze and restrict the rotation of the turntable, fixing the position of the existing differential housing to be welded. By releasing the pedal, the support rod can support and restore the use position of the pressure frame under the support of the support spring and the pressure piece, separating the connecting shaft from the turntable, and then the rotation of the moving table can be pushed again.

[0020] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are:

[0021] (1) In the present invention, during use, the existing differential housing is placed on the top of the carrier plate. Then, by rotating two limit worms, the limit worms and the limit worm wheels cooperate to drive the corresponding bidirectional threaded rods to rotate. Thus, the rotating bidirectional threaded rods can drive the corresponding two first clamping blocks and two second clamping blocks to cooperate with the clamping pieces to squeeze and fit against the inner wall of the existing differential housing, or the two first clamping blocks and two second clamping blocks can cooperate with the clamping pieces to squeeze and fit against the outer surface of the existing differential housing. As a result, the existing differential housing to be welded can be stably placed on the top of the carrier plate. At this time, by controlling the start of the linkage motor, the linkage motor, the linkage worm, and the linkage worm wheel cooperate to drive the second linkage gear to rotate. The rotating second linkage gear and the first linkage gear cooperate to drive the bottom shaft to rotate. The rotating bottom shaft can drive the connecting shaft to rotate. Then, when the welder steps on the pedal with the foot, during the downward movement of the pedal, the pressing frame will be synchronously pressed downward. Then, under the position limitation of the sliding frame, the pressing frame can drive the second rack to move downward synchronously. During the downward movement, the second rack and the synchronous gear cooperate to drive the first rack to move upward synchronously. Then, under the position limitation of the adjusting frame, the first rack can drive the lifting frame to rise. The rising lifting frame synchronously drives the connecting shaft to rise until the top of the connecting shaft fits against the bottom of the turntable. At this time, the push block can be fully inserted into the linkage groove. Then, under the friction effect between the top of the connecting shaft and the bottom of the turntable, and the blocking effect of the linkage groove on the push block, the connecting shaft can drive the turntable to rotate synchronously. Thus, the rotating turntable can drive the moving table to rotate. The rotating moving table can cooperate with the carrier plate to synchronously drive the existing differential housing to be welded to rotate. Subsequently, when the welder stops stepping on the pedal with the foot, the connecting shaft and the turntable are separated, causing the moving table and the carrier plate to stop rotating. This facilitates the welder to perform continuous welding on the existing differential housing, thereby improving the actual welding efficiency.

[0022] (2)In the present invention, during use, according to the specifications of the existing differential housing outer shell, the worm is rotated and moved, so that the rotating moving worm and the moving worm wheel can drive the moving threaded rod to rotate. The rotating moving threaded rod can move and adjust the position of the moving table, causing the rotation center of the moving table in the vertical direction to deviate from the rotation center of the turntable. Thus, the welding position relative to the rotation center of the turntable can be adjusted according to the actual structure of the existing differential housing, facilitating continuous welding. At the same time, by controlling the start of the fan, the fan can suck and accelerate the air below the moving table through the air guide frame and the connecting frame and discharge it from the bottom end of the air extraction frame, accelerating the air flow around the moving table and the carrier plate. This can prevent excessive temperature changes in the existing differential housing during continuous welding, improving the actual welding quality. Meanwhile, when the fan discharges the high-speed flowing air from the bottom end of the air extraction frame, a negative pressure effect is generated at the bottom of the air extraction frame, enabling the air extraction frame to timely extract the harmful gases generated during the welding process above the carrier plate through the air inlet and discharge them synchronously with the high-speed air flow discharged by the fan, preventing the welder from inhaling too many harmful gases and enabling the equipment to efficiently realize its intended functions.

[0023] (3)In the present invention, when the linkage motor stops running, the moving table can be conveniently rotated and adjusted manually. At the same time, by stepping on the pedal, the stopped rotating connecting shaft can squeeze and restrict the rotation of the turntable, fixing the position of the existing differential housing to be welded. Then, by releasing the pedal, under the support of the support spring and the pressure plate, the support rod can support and restore the use position of the pressure frame, separating the connecting shaft from the turntable. Subsequently, the rotation of the moving table can be pushed again, enabling the equipment to meet the welder's different welding requirements according to the actual welding situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the first perspective three-dimensional view of the present invention;

[0025] Figure 2 is the second perspective three-dimensional view of the present invention;

[0026] Figure 3 is the first perspective partially sectional three-dimensional view of the present invention;

[0027] Figure 4 is the three-dimensional view of the air guide mechanism of the present invention;

[0028] Figure 5 is the partially sectional three-dimensional view of the support mechanism of the present invention;

[0029] Figure 6 is of the present invention Figure 5 enlarged view of part A;

[0030] Figure 7 For the present invention Figure 5 Enlarged view of part B in

[0031] Figure 8 For the present invention Figure 5 Enlarged view of part C in

[0032] Figure 9 Partial sectional and unfolded perspective view of the support mechanism of the present invention;

[0033] Figure 10 For the present invention Figure 9 Enlarged view of part D in

[0034] Figure 11 For the present invention Figure 9 Enlarged view of part E in

[0035] Figure 12 Partial sectional perspective view of the limit mechanism of the present invention.

[0036] Reference numerals in the figure: 1, air guide mechanism; 101, base; 102, seat; 103, air guide frame; 104, fan; 105, air extraction frame; 2, support mechanism; 201, mounting frame; 202, bottom shaft; 203, first interlocking gear; 204, interlocking worm gear; 205, interlocking motor; 206, connecting shaft; 207, interlocking groove; 208, adjusting frame; 209, lifting frame; 210, first rack; 211, synchronizing gear; 212, sliding frame; 213, second rack; 214, pressing frame; 215, support rod; 216, reset frame; 217, support spring; 218, pedal; 219, connecting frame; 220, guide ring; 221, turntable; 222, moving threaded rod; 223, clamping bar; 224, moving worm gear; 225, pushing block; 3, limit mechanism; 301, moving table; 302, carrier plate; 303, bidirectional threaded rod; 304, limit worm gear; 305, first clamping block; 306, second clamping block; 307, clamping piece. Detailed implementation manners

[0037] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] Embodiment. Please refer to Figures 1-3 , a clamping device for machining a differential housing, which is composed of an air guide mechanism 1, a support mechanism 2 and a limit mechanism 3.

[0039] Specifically described as follows:

[0040] Please refer to Figure 4, the air guiding mechanism 1 includes a base 101, a seat 102 and an air guiding component. The seat 102 is fixedly connected to the top of the base 101. The air guiding component is arranged on the base 101. The air guiding component includes side plates, an air guiding frame 103, a fan 104 and an air extraction frame 105. The side plates are fixedly connected to the base 101. The fan 104 is communicatively arranged at one end of the air guiding frame 103. The air extraction frame 105 is fixedly connected to the top of the side plates. An air inlet is formed on the outer surface of the air extraction frame 105. When the fan 104 is controlled to start, the fan 104 can suck and accelerate the air below the moving platform 301 through the air guiding frame 103 and the connecting frame 219 and discharge it from the bottom end of the air extraction frame 105, so as to accelerate the air flow around the moving platform 301 and the carrier plate 302, and prevent the temperature of the existing differential housing from changing too much during the continuous welding process, improving the actual welding quality. At the same time, when the fan 104 discharges the high-speed flowing air from the bottom end of the air extraction frame 105, a negative pressure effect is generated at the bottom of the air extraction frame 105, so that the air extraction frame 105 can timely extract the harmful gases generated during the welding process above the carrier plate 302 through the air inlet and discharge them synchronously with the high-speed air flow discharged by the fan 104, preventing the welder from inhaling too much harmful gases and enabling the equipment to efficiently realize its due functions;

[0041] Please refer to Figures 5-11, the support mechanism 2 includes an installation frame 201, a bottom shaft 202, a connection frame 219, a turntable 221, an adjustment component, and a driving component. The installation frame 201 is fixedly connected to the inside of the base 101. The bottom shaft 202 is rotatably connected to the inner bottom surface of the installation frame 201. A connection shaft 206 is slidably inserted into the top of the bottom shaft 202. The connection frame 219 is fixedly connected to the inside of the installation frame 201. The turntable 221 is rotatably connected to the top of the connection frame 219. A moving threaded rod 222 is rotatably connected to the top of the turntable 221. Both the adjustment component and the driving component are arranged on the installation frame 201. A linkage groove 207 is opened at the top of the connection shaft 206. One end of the air guide frame 103 extends into the installation frame 201, and the inside of the air guide frame 103 is communicated with the inside of the connection frame 219. A guide ring 220 is communicated and arranged at the top of the connection frame 219. A moving worm gear 224 is sleeved on the outer surface of the moving threaded rod 222. A moving worm is rotatably connected to the top of the turntable 221. The moving worm is meshed with the moving worm gear 224. Two clamping strips 223 are fixedly connected to the top of the turntable 221 by bolts. The moving table 301 is threadedly connected to the moving threaded rod 222. The driving component includes a first linkage gear 203, a second linkage gear, a linkage worm gear 204, a linkage worm, and a linkage motor 205. The first linkage gear 203 is sleeved on the outer surface of the bottom shaft 202. The second linkage gear is rotatably connected to the inner bottom surface of the installation frame 201. The second linkage gear is meshed with the first linkage gear 203. The linkage worm gear 204 is fixedly connected to one end of the second linkage gear. The linkage worm is rotatably connected to the inner bottom surface of the installation frame 201. The linkage motor 205 is fixedly connected to the inner bottom surface of the installation frame 201. The output end of the linkage motor 205 is fixedly connected to one end of the linkage worm. The adjustment component includes an adjustment frame 208, a lifting frame 209, a first rack 210, a sliding frame 212, a second rack 213, a pressing frame 214, and multiple reset frames 216. The adjustment frame 208 is fixedly connected to the inner bottom surface of the installation frame 201. The lifting frame 209 is slidably inserted into the top of the adjustment frame 208. One end of the lifting frame 209 is rotatably connected to the connection shaft 206. The first rack 210 is fixedly connected to the outer surface of one side of the lifting frame 209. The sliding frame 212 is fixedly connected to the outer surface of the adjustment frame 208. The second rack 213 is slidably inserted into the inside of the sliding frame 212. The pressing frame 214 is fixedly connected to the outer surface of one side of the second rack 213, and one end of the pressing frame 214 slidably penetrates through the installation frame 201. Multiple reset frames 216 are all fixedly connected to the inner bottom surface of the installation frame 201. A support spring 217 is inserted into each reset frame 216. A support rod 215 slidably penetrates through the top of each reset frame 216. The top end of each support rod 215 and the bottom of the pressing frame 214 are fixedly connected. A pressing piece is fixedly connected to the bottom end of each support rod 215. A synchronous gear 211 is rotatably connected to the inner wall of the adjustment frame 208. The synchronous gear 211 is meshed with both the first rack 210 and the second rack 213. A pedal 218 is slidably inserted into the top of the installation frame 201. The bottom end of the pedal 218 is fixedly connected to the top of the pressing frame 214. A pushing block 225 is fixedly connected to the bottom of the turntable 221.By controlling the start of the linkage motor 205, the linkage motor 205 cooperates with the linkage worm and the linkage worm gear 204 to drive the second linkage gear to rotate. The rotating second linkage gear cooperates with the first linkage gear 203 to drive the bottom shaft 202 to rotate. The rotating bottom shaft 202 drives the connecting shaft 206 to rotate. Then, when the welder steps on the pedal 218 with the foot, during the downward movement of the pedal 218, it will squeeze the pressure frame 214 to move downward synchronously. Then, under the position limitation of the sliding frame 212, the pressure frame 214 can drive the second rack 213 to move downward synchronously. During the downward movement, the second rack 213 cooperates with the synchronous gear 211 to drive the first rack 210 to move upward synchronously. Then, under the position limitation of the adjusting frame 208, the first rack 210 can drive the lifting frame 209 to rise. The rising lifting frame 209 drives the connecting shaft 206 to rise until the top of the connecting shaft 206 fits against the bottom of the turntable 221. At this time, the push block 225 can be fully inserted into the linkage groove 207. Then, under the friction effect between the top of the connecting shaft 206 and the bottom of the turntable 221, and the blocking effect of the linkage groove 207 on the push block 225, the connecting shaft 206 can drive the turntable 221 to rotate synchronously. Then, the rotating turntable 221 can drive the moving platform 301 to rotate. The rotating moving platform 301 can cooperate with the carrier plate 302 to drive the existing differential housing to be welded to rotate synchronously. Then, when the welder stops stepping on the pedal 218 with the foot, the connecting shaft 206 and the turntable 221 are separated, causing the moving platform 301 and the carrier plate 302 to stop rotating. This facilitates the welder to perform continuous welding on the existing differential housing, thereby improving the actual welding efficiency. According to the specifications of the outer shell of the existing differential housing, by rotating the moving worm, the rotating moving worm cooperates with the moving worm gear 224 to drive the moving threaded rod 222 to rotate. The rotating moving threaded rod 222 can move and adjust the position of the moving platform 301, causing the rotation center of the moving platform 301 in the vertical direction to deviate from the rotation center of the turntable 221. Then, the welding position relative to the rotation center of the turntable 221 can be adjusted according to the actual structure of the existing differential housing, facilitating continuous welding. When the linkage motor 205 stops running, the moving platform 301 can be conveniently rotated and adjusted manually. At the same time, by stepping on the pedal 218, the stopped rotating connecting shaft 206 can squeeze and limit the rotation of the turntable 221, thereby fixing the position of the existing differential housing to be welded. At the same time, by releasing the pedal 218, under the support of the support spring 217 and the pressure piece, the support rod 215 can support and restore the pressure frame 214 to its original position, causing the connecting shaft 206 and the turntable 221 to separate. Then, the moving platform 301 can be rotated and pushed again, enabling the equipment to meet the welder's requirements for welding in different ways according to the actual welding situation;

[0042] Please refer to Figure 12, the limiting mechanism 3 includes a moving platform 301, a carrier plate 302 and limiting components. The moving platform 301 is slidably inserted into the top of the turntable 221, the carrier plate 302 is fixedly connected to the top of the moving platform 301, and the limiting components are arranged on the moving platform 301 and the carrier plate 302. The limiting components include two bidirectional threaded rods 303, two first clamping blocks 305, two second clamping blocks 306, two limiting worm wheels 304 and two limiting worm shafts. The two bidirectional threaded rods 303 are both rotatably connected to the bottom of the carrier plate 302. The two first clamping blocks 305 are both threadedly connected to the outer surface of one of the bidirectional threaded rods 303, and the two second clamping blocks 306 are both threadedly connected to the outer surface of the other bidirectional threaded rod 303. The two limiting worm wheels 304 are respectively sleeved on the outer surfaces of the two bidirectional threaded rods 303. The two limiting worm shafts are both rotatably connected to the top of the moving platform 301. Each limiting worm shaft meshes with the corresponding limiting worm wheel 304. Clamping pieces 307 are slidably inserted into the tops of the two first clamping blocks 305 and the two second clamping blocks 306. Place the existing differential housing on the top of the carrier plate 302. Then, by rotating the two limiting worm shafts, the limiting worm shafts can drive the corresponding bidirectional threaded rods 303 to rotate in cooperation with the limiting worm wheels 304. Furthermore, the rotating bidirectional threaded rods 303 can drive the corresponding two first clamping blocks 305 and two second clamping blocks 306 to cooperate with the clamping pieces 307 to squeeze and fit against the inner wall of the existing differential housing, or the two first clamping blocks 305 and the two second clamping blocks 306 can cooperate with the clamping pieces 307 to squeeze and fit against the outer surface of the existing differential housing. Thus, the existing differential housing to be welded can be stably placed on the top of the carrier plate 302.

[0043] The following will detail the usage method of a differential housing processing clamping device provided by an embodiment of the present invention. The usage method includes the following steps:

[0044] Step 1. Continuous welding: Place the existing differential housing on the top of the carrier plate 302. Then, by rotating two limiting worms, the limiting worms and the limiting worm wheels 304 can drive the corresponding bidirectional threaded rods 303 to rotate, so that the rotating bidirectional threaded rods 303 can drive the corresponding two first clamping blocks 305 and two second clamping blocks 306 to cooperate with the clamping piece 307 to squeeze and fit the inner wall of the existing differential housing, or the two first clamping blocks 305 and the two second clamping blocks 306 can cooperate with the clamping piece 307 to squeeze and fit the outer surface of the existing differential housing, so that the existing differential housing to be welded can be stably placed on the top of the carrier plate 302. At this time, by controlling the start of the linkage motor 205, the linkage motor 205 and the linkage worm and the linkage worm wheel 204 can drive the second linkage gear to rotate. The rotating second linkage gear and the first linkage gear 203 can drive the bottom shaft 202 to rotate. The rotating bottom shaft 202 can drive the connecting shaft 206 to rotate. Then, when the welder steps on the pedal 218 with the foot, during the downward movement of the pedal 218, the pressing frame 214 will be synchronously pressed down. Then, under the position limitation of the sliding frame 212, the pressing frame 214 can drive the second rack 213 to move downward synchronously. During the downward movement, the second rack 213 and the synchronous gear 211 can drive the first rack 210 to move upward synchronously. Then, under the position limitation of the adjusting frame 208, the first rack 210 can drive the lifting frame 209 to rise. The rising lifting frame 209 synchronously drives the connecting shaft 206 to rise until the top of the connecting shaft 206 fits the bottom of the turntable 221. At this time, the push block 225 can be fully inserted into the linkage groove 207. Then, under the friction effect between the top of the connecting shaft 206 and the bottom of the turntable 221, and the blocking effect of the linkage groove 207 on the push block 225, the connecting shaft 206 can drive the turntable 221 to rotate synchronously. Then, the rotating turntable 221 can drive the moving platform 301 to rotate. The rotating moving platform 301 and the carrier plate 302 can drive the existing differential housing to be welded to rotate synchronously. Then, when the welder stops stepping on the pedal 218 with the foot, the connecting shaft 206 and the turntable 221 are separated, and the moving platform 301 and the carrier plate 302 stop rotating, which is convenient for the welder to perform continuous welding on the existing differential housing, thereby improving the actual welding efficiency;

[0045] Step 2. Environmental adjustment: According to the specifications of the existing differential housing shell, the rotating moving worm is rotated to make the rotating moving worm cooperate with the moving worm wheel 224 to drive the moving threaded rod 222 to rotate. The rotating moving threaded rod 222 can move and adjust the position of the moving table 301, so that the rotation center of the moving table 301 in the vertical direction is offset from the rotation center of the turntable 221. Then, the welding position relative to the rotation center position of the turntable 221 can be adjusted according to the actual structure of the existing differential housing, which is convenient for continuous welding. At the same time, by controlling the start of the fan 104, the fan 104 can suck and accelerate the air below the moving table 301 through the air guide frame 103 and the connection frame 219 and discharge it from the bottom end of the air extraction frame 105, which can accelerate the air flow around the moving table 301 and the carrier plate 302. During the continuous welding process, it can prevent the temperature of the existing differential housing from changing too much, improve the actual welding quality. At the same time, when the fan 104 discharges the high-speed flowing air from the bottom end of the air extraction frame 105, a negative pressure effect is generated at the bottom of the air extraction frame 105, so that the air extraction frame 105 can timely extract the harmful gases generated during the welding process above the carrier plate 302 through the air inlet and discharge them synchronously with the high-speed air flow discharged by the fan 104, preventing the welder from inhaling too many harmful gases and enabling the equipment to efficiently realize its due functions;

[0046] Step 3. Intermittent welding: When the linkage motor 205 stops running, the moving table 301 can be conveniently rotated and adjusted manually. At the same time, by stepping on the pedal 218, the stopped rotating connecting shaft 206 can squeeze and restrict the rotation of the turntable 221, so as to fix the position of the existing differential housing to be welded. At the same time, by releasing the stepping on the pedal 218, under the support of the support spring 217 and the pressing piece, the support rod 215 can support and restore the pressing frame 214 to its use position, so that the connecting shaft 206 is separated from the turntable 221, and then the rotation of the moving table 301 can be pushed again, so that the equipment can meet the welder's different welding methods according to the actual welding situation.

[0047] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A clamping device for machining a differential housing, characterized in that Including: An air guiding mechanism (1), the air guiding mechanism (1) includes a base (101), a seat (102) and an air guiding component, the seat (102) is fixedly connected to the top of the base (101), and the air guiding component is arranged on the base (101); A support mechanism (2), the support mechanism (2) includes a mounting frame (201), a bottom shaft (202), a connecting frame (219), a turntable (221), an adjusting component and a driving component, the mounting frame (201) is fixedly connected to the inside of the base (101), the bottom shaft (202) is rotatably connected to the inner bottom surface of the mounting frame (201), a connecting shaft (206) is slidably inserted into the top of the bottom shaft (202), the connecting frame (219) is fixedly connected to the inside of the mounting frame (201), the turntable (221) is rotatably connected to the top of the connecting frame (219), a moving threaded rod (222) is rotatably connected to the top of the turntable (221), and the adjusting component and the driving component are both arranged on the mounting frame (201); and A limiting mechanism (3), the limiting mechanism (3) includes a moving table (301), a carrier plate (302) and a limiting component, the moving table (301) is slidably inserted into the top of the turntable (221), the carrier plate (302) is fixedly connected to the top of the moving table (301), and the limiting component is arranged on the moving table (301) and the carrier plate (302).

2. The clamping device for machining a differential housing according to claim 1, wherein: The air guiding component includes side plates, an air guiding frame (103), a fan (104) and an air extraction frame (105), the side plates are fixedly connected to the base (101), the fan (104) is communicated and arranged at one end of the air guiding frame (103), the air extraction frame (105) is fixedly connected to the top of the side plates, and an air inlet is formed on the outer surface of the air extraction frame (105).

3. The clamping device for machining a differential housing according to claim 2, wherein: A linkage groove (207) is formed at the top of the connecting shaft (206), one end of the air guiding frame (103) extends into the inside of the mounting frame (201), and the inside of the air guiding frame (103) is communicated with the inside of the connecting frame (219), and a guiding ring (220) is communicated and arranged at the top of the connecting frame (219).

4. The clamping device for machining a differential housing according to claim 3, wherein: A moving worm gear (224) is sleeved on the outer surface of the moving threaded rod (222), a moving worm is rotatably connected to the top of the turntable (221), the moving worm is meshed with the moving worm gear (224), two clamping bars (223) are fixedly connected to the top of the turntable (221) by bolts, and the moving table (301) is threadedly connected with the moving threaded rod (222).

5. The clamping device for machining a differential housing according to claim 4, characterized in that: The driving component includes a first linkage gear (203), a second linkage gear, a linkage worm gear (204), a linkage worm, and a linkage motor (205). The first linkage gear (203) is sleeved on the outer surface of the bottom shaft (202). The second linkage gear is rotatably connected to the inner bottom surface of the mounting frame (201). The second linkage gear meshes with the first linkage gear (203). The linkage worm gear (204) is fixedly connected to one end of the second linkage gear. The linkage worm is rotatably connected to the inner bottom surface of the mounting frame (201). The linkage motor (205) is fixedly connected to the inner bottom surface of the mounting frame (201). The output end of the linkage motor (205) is fixedly connected to one end of the linkage worm.

6. The clamping device for machining a differential housing according to claim 5, characterized in that: The adjusting component includes an adjusting frame (208), a lifting frame (209), a first rack (210), a sliding frame (212), a second rack (213), a pressing frame (214), and a plurality of reset frames (216). The adjusting frame (208) is fixedly connected to the inner bottom surface of the mounting frame (201). The lifting frame (209) is slidably inserted into the top of the adjusting frame (208). One end of the lifting frame (209) is rotatably connected to the connecting shaft (206). The first rack (210) is fixedly connected to the outer surface of one side of the lifting frame (209). The sliding frame (212) is fixedly connected to the outer surface of the adjusting frame (208). The second rack (213) is slidably inserted into the inside of the sliding frame (212). The pressing frame (214) is fixedly connected to the outer surface of one side of the second rack (213), and one end of the pressing frame (214) slidably penetrates through the mounting frame (201). A plurality of the reset frames (216) are all fixedly connected to the inner bottom surface of the mounting frame (201). A support spring (217) is inserted into each of the reset frames (216). A support rod (215) slidably penetrates through the top of each of the reset frames (216). The top end of each of the support rods (215) and the bottom of the pressing frame (214) are fixedly connected. A pressing piece is fixedly connected to the bottom end of each of the support rods (215).

7. The clamping device for machining a differential housing according to claim 6, characterized in that: A synchronous gear (211) is rotatably connected to the inner wall of the adjusting frame (208). The synchronous gear (211) meshes with both the first rack (210) and the second rack (213).

8. The clamping device for machining a differential housing according to claim 7, wherein: A pedal (218) is slidably inserted into the top of the mounting frame (201). The bottom end of the pedal (218) is fixedly connected to the top of the pressing frame (214). A push block (225) is fixedly connected to the bottom of the turntable (221).

9. The clamping device for machining a differential housing according to claim 8, wherein: The limiting member includes two bidirectional threaded rods (303), two first clamping blocks (305), two second clamping blocks (306), two limiting worm wheels (304) and two limiting worm gears. Both of the two bidirectional threaded rods (303) are rotatably connected to the bottom of the carrier plate (302). Both of the two first clamping blocks (305) are threadedly connected to the outer surface of one of the bidirectional threaded rods (303). Both of the two second clamping blocks (306) are threadedly connected to the outer surface of the other bidirectional threaded rod (303). The two limiting worm wheels (304) are respectively sleeved on the outer surfaces of the two bidirectional threaded rods (303). Both of the two limiting worm gears are rotatably connected to the top of the moving table (301). Each limiting worm gear and the corresponding limiting worm wheel (304) are meshed. Clamping pieces (307) are slidably inserted into the tops of the two first clamping blocks (305) and the two second clamping blocks (306).

10. A method for using a clamping device for machining a differential housing, characterized in that, Applied to the clamping device for machining a differential housing described in claim 9, it includes the following steps: S1. Continuous welding: Place the existing differential housing on top of the carrier plate (302). Then, by rotating two limit worms, the limit worms and the limit worm wheels (304) can drive the corresponding bidirectional threaded rods (303) to rotate. Thus, the rotating bidirectional threaded rods (303) can drive the corresponding two first clamping blocks (305) and two second clamping blocks (306) to cooperate with the clamping pieces (307) to squeeze and fit against the inner wall of the existing differential housing, or the two first clamping blocks (305) and two second clamping blocks (306) can cooperate with the clamping pieces (307) to squeeze and fit against the outer surface of the existing differential housing. As a result, the existing differential housing to be welded can be stably placed on top of the carrier plate (302). At this time, by controlling the start of the linkage motor (205), the linkage motor (205) and the linkage worm and linkage worm wheel (204) can drive the second linkage gear to rotate. The rotating second linkage gear and the first linkage gear (203) can drive the bottom shaft (202) to rotate. The rotating bottom shaft (202) can drive the connecting shaft (206) to rotate. Then, when the welder steps on the pedal (218) with the foot, during the downward movement of the pedal (218), it will squeeze the pressure frame (214) to move downward synchronously. Then, under the position limitation of the sliding frame (212), the pressure frame (214) can drive the second rack (213) to move downward synchronously. During the downward movement of the second rack (213), it can cooperate with the synchronous gear (211) to drive the first rack (210) to move upward synchronously. Then, under the position limitation of the adjusting frame (208), the first rack (210) can drive the lifting frame (209) to rise. The rising lifting frame (209) synchronously drives the connecting shaft (206) to rise until the top of the connecting shaft (206) fits against the bottom of the turntable (221). At this time, the push block (225) can fully insert into the linkage groove (207). Then, under the friction effect between the top of the connecting shaft (206) and the bottom of the turntable (221), and the blocking effect of the linkage groove (207) on the push block (225), the connecting shaft (206) can drive the turntable (221) to rotate synchronously. Thus, the rotating turntable (221) can drive the moving platform (301) to rotate. The rotating moving platform (301) can cooperate with the carrier plate (302) to synchronously drive the existing differential housing to be welded to rotate. Subsequently, when the welder stops stepping on the pedal (218) with the foot, the connecting shaft (206) separates from the turntable (221) to stop the rotation of the moving platform (301) and the carrier plate (302); S2. Environmental adjustment: According to the existing specifications of the differential housing shell, by rotating and moving the worm, the rotating and moving worm can cooperate with the moving worm gear (224) to drive the moving threaded rod (222) to rotate. The rotating moving threaded rod (222) can move and adjust the position of the moving table (301), so that the rotation center of the moving table (301) in the vertical direction is offset from the rotation center of the turntable (221). Thus, the welding position relative to the rotation center of the turntable (221) can be adjusted according to the actual structure of the existing differential housing, which is convenient for continuous welding. At the same time, by controlling the start of the blower (104), the blower (104) can suck and accelerate the air below the moving table (301) through the air guide frame (103) and the connecting frame (219) and discharge it from the bottom end of the air extraction frame (105). This can accelerate the air flow around the moving table (301) and the carrier plate (302), and prevent the temperature of the existing differential housing from changing too much during continuous welding, improving the actual welding quality. At the same time, when the blower (104) discharges the high-speed flowing air from the bottom end of the air extraction frame (105), a negative pressure effect is generated at the bottom of the air extraction frame (105), so that the air extraction frame (105) can timely extract the harmful gases generated during the welding above the carrier plate (302) through the air inlet, and discharge them synchronously with the high-speed air flow discharged by the blower (104). S3. Intermittent welding: When the linkage motor (205) stops running, the moving table (301) can be conveniently pushed and rotated manually. At the same time, by stepping on the pedal (218), the stopped rotating connecting shaft (206) can squeeze and restrict the rotation of the turntable (221), so as to fix the position of the existing differential housing to be welded. At the same time, by releasing the stepping on the pedal (218), under the support of the support spring (217) and the pressing piece, the support rod (215) can support and restore the pressing frame (214) to its working position, so that the connecting shaft (206) is separated from the turntable (221), and then the rotation of the moving table (301) can be pushed again.

Images