Aluminum alloy wheel hub sound insulation cotton installation equipment

Abstract

The present invention discloses an aluminum alloy wheel hub sound insulation cotton installation device, comprising a mounting frame, wherein the mounting frame comprises side beams extending forward and backward on the left and right sides at the top, and transverse connecting beams are provided at the front and rear between the two side beams, and the two ends of the transverse connecting beams are fixed on the inner side walls of the two side beams; the top surfaces of the two side beams are fixed with mounting side plates extending forward and backward, and two guide support rollers are located at the front and rear between the two mounting side plates, and the two ends of the central rotating shaft of the guide support roller are installed on the two mounting side plates; the sound insulation cotton can be placed on the two guide support rollers and supported by the tapered pressing roller body, and then the wheel hub is placed on it, and the sound insulation cotton can be adhered to the rim of the wheel hub by manually rotating the wheel hub to achieve pasting, and the processing effect is good, the efficiency is high, and the manual labor is greatly reduced.

Description

Technical field:

[0001] The invention relates to the technical field of wheel hub processing equipment, and more specifically to an aluminum alloy wheel hub sound insulation cotton installation device. Background technology:

[0002] In order to improve the quietness of the existing wheel hub, sound insulation cotton is generally adhered to the outer wall of the rim of the wheel hub, thereby reducing the noise generated during operation;

[0003] Therefore, the existing method is to manually paste the sound insulation cotton on after the wheel hub is processed. It needs to place the wheel hub horizontally and then paste it on manually, which has a large amount of manual labor and low efficiency. Summary of the invention:

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an aluminum alloy wheel hub sound insulation cotton installation device, which can place the sound insulation cotton on two guide support rollers and be supported by the conical pressure roller body, and then place the wheel hub on it. By manually rotating the wheel hub, the sound insulation cotton can be adhered to the rim of the wheel hub to achieve bonding, and the processing effect is good, the efficiency is high, and the amount of manual labor is greatly reduced.

[0005] The solution of the present invention to solve the technical problem is:

[0006] A device for installing sound insulation cotton for an aluminum alloy wheel hub comprises a mounting frame, wherein the mounting frame comprises side beams extending forward and backward on the left and right sides of the top, and transverse connecting beams are arranged at the front and rear parts between the two side beams, and the two ends of the transverse connecting beams are fixed on the inner side walls of the two side beams;

[0007] The top surfaces of the two side beams are fixed with mounting side plates extending forward and backward, the two guide support rollers are located at the front and rear parts between the two mounting side plates, and the two ends of the central rotating shaft of the guide support rollers are mounted on the two mounting side plates;

[0008] A left ring body and a right ring body are installed in the middle of the two guide support rollers. A first positioning annular groove is formed on the middle outer wall of the left ring body, and a second positioning annular groove is formed on the middle outer wall of the right ring body. The left and right wheel rims of the wheel hub to be processed correspond to the corresponding first positioning annular groove and the second positioning annular groove.

[0009] A radially extending edge is formed on the outer side wall of the left ring body at the right side of the first positioning annular groove, and the left side wall of the radially extending edge is a conical wall surface, with a small outer diameter at the left end and a large outer diameter at the right end;

[0010] The outer side walls of the right ring body at the left and right sides of the second positioning annular groove are formed with radially extending edges, and the side walls of the opposite walls of the two radially extending edges are conical wall surfaces, and the outer diameters of the two conical wall surfaces are small at the ends close to each other and large at the ends far away from each other.

[0011] The central rotating shaft is inserted into the axial through hole in the middle of the guide support roller and is movably connected to the guide support roller through a bearing.

[0012] Vertical supporting feet are fixed to the bottom surfaces of the front and rear ends of the two side beams, an intermediate cross beam is fixed between the two corresponding front and rear vertical supporting feet, the front and rear ends of the intermediate cross beam are fixed on the inner side walls of the corresponding two vertical supporting feet, the two ends of the intermediate connecting beam extending left and right are fixed on the middle inner side walls of the two intermediate cross beams, a lifting cylinder is provided in the middle of the bottom surface of the intermediate connecting beam, the top end of the push rod of the lifting cylinder extends out of the top surface of the intermediate connecting beam and is fixed with a lifting plate, and a conical pressing roller body is installed on the lifting plate, which cooperates with the outer side wall of the rim of the wheel hub to be processed.

[0013] An upper fixing plate is provided on the top surface of the lifting plate, and an elongated through groove extending left and right is formed at the front and rear of the upper fixing plate, and the screw parts of the four fixing bolts are inserted into the left and right parts of the two elongated through grooves, and the lower part of the screw part of the fixing bolt is inserted into the corresponding lower elongated through groove formed at the front or rear of the lifting plate, and the bottom end of the screw part of the fixing bolt extends out of the lower elongated through groove, and a first nut, a second nut and a third nut are screwed on the screw part of the fixing bolt, and the top surface of the first nut is pressed against the bottom surface of the upper fixing plate, the bottom surface of the rotating part of the fixing bolt is pressed against the top surface of the upper fixing plate, the bottom surface of the second nut is pressed against the top surface of the lifting plate, and the top surface of the third nut is pressed against the bottom surface of the lifting plate.

[0014] Bending support frames are fixed to the left and right parts of the top surface of the upper fixed plate, and vertical adjustment grooves are formed in the middle of the vertical plates of the two bending support frames. The intermediate shaft is inserted into the middle axial through hole of the conical pressing roller body and is movably connected through a bearing. The screw parts at the left and right ends of the intermediate shaft extend out of the left and right ends of the conical pressing roller body and are inserted into the corresponding vertical adjustment grooves, and the outer ends of the screw parts of the intermediate shaft extend out of the outer ends of the corresponding vertical adjustment grooves.

[0015] A lower adjusting plate is provided below the conical pressing roller body, and side bending plates extending upward are formed on the left and right side walls of the lower adjusting plate, and through holes are formed in the middle of the two side bending plates, and the corresponding screw parts of the intermediate shaft are inserted in the through holes, a buffer spring is fixed in the middle of the bottom surface of the lower adjusting plate, and a vertical guide sleeve is fixed to the middle top surface of the upper fixed plate, the lower part of the buffer spring is inserted in the vertical guide sleeve, and the bottom end of the buffer spring is pressed against the top surface of the upper fixed plate.

[0016] A grabbing mechanism is installed around the mounting frame, and a wheel hub conveying mechanism is provided above the left side of the mounting frame. The grabbing mechanism can automatically grab the conveyed wheel hub and place it on two guide support rollers for adhesion of the sound insulation cotton.

[0017] The outstanding effects of the present invention are:

[0018] Compared with the existing technology, it can place the sound insulation cotton on two guide support rollers and be supported by the conical pressure roller body, and then place the hub on it. By manually rotating the hub, the sound insulation cotton can be adhered to the rim of the hub to achieve bonding. It has good processing effect and high efficiency, and greatly reduces the amount of manual labor.

[0019] Moreover, the wheel hub can be automatically placed on the guide support roller, which is convenient for manual processing, has good use effect, and greatly reduces the amount of manual labor. Description of the drawings:

[0020] Figure 1 It is a partial structural schematic diagram of the present invention;

[0021] Figure 2 yes Figure 1 A partial enlarged view of

[0022] Figure 3 yes Figure 1 a partial enlarged view of another part;

[0023] Figure 4 is a partial top view of the present invention;

[0024] Figure 5 yes Figure 4 A partial enlarged view of

[0025] Figure 6 This is a schematic diagram of the partial structure of the sound insulation cotton installed on the wheel hub;

[0026] Figure 7 It is a partial structural diagram of installing the side panel;

[0027] Figure 8 It is a schematic diagram of the local structure of the sensing column and the connecting column. Specific implementation method:

[0028] For example, see Figures 1 to 8 As shown, an aluminum alloy wheel hub sound insulation cotton installation device includes a mounting frame 10, and a wheel hub conveying mechanism is provided above the left side of the mounting frame 10;

[0029] The hub conveying mechanism includes a conveying chain 30, which is tensioned on the corresponding conveying sprocket. One of the conveying sprockets is driven by a motor, so that the conveying chain 30 can be operated. A connecting block is fixed at the end of the corresponding pin shaft of the conveying chain 30, and a vertical rod extending vertically downward is fixed at the bottom of the connecting block. A vertical limit plate 31 is welded and fixed to the bottom end of the vertical rod. A horizontal fixing column 32 is fixed to the middle of the right side wall of the vertical limit plate 31, and an elastic protective The sleeve 33 can press the outer end surface of the spoke of the wheel hub 100 against the right side wall of the vertical limit plate 31. The elastic protective sleeve 33 is clamped in the central through hole of the wheel hub 100, and its right end extends out of the central through hole. It runs through the conveying chain 30 to drive the wheel hub 100 to move. Its wheel hub conveying mechanism can move and convey the wheel hub 100 along the entire workshop, so that the wheel hub 100 can move back and forth on the upper left side of the mounting frame 10 to achieve conveying, so that the wheel hub 100 can be continuously processed.

[0030] The mounting frame 10 includes side beams 11 extending forward and backward on the left and right sides of the top, and transverse connecting beams are provided at the front and rear between the two side beams 11, and the two ends of the transverse connecting beam are fixed to the inner side walls of the two side beams 11;

[0031] The top surfaces of the two side beams 11 are fixed with mounting side plates 12 extending forward and backward, two guide support rollers 13 are located at the front and rear parts between the two mounting side plates 12, and both ends of the central rotating shaft 14 of the guide support roller 13 are mounted on the two mounting side plates 12;

[0032] A left ring body 15 and a right ring body 16 are installed in the middle of the two guide support rollers 13. A first positioning annular groove 151 is formed on the middle outer wall of the left ring body 15, and a second positioning annular groove 161 is formed on the middle outer wall of the right ring body 16. The left wheel rim and the right wheel rim of the wheel hub 100 to be processed correspond to the corresponding first positioning annular groove 151 and the second positioning annular groove 161.

[0033] Furthermore, a radially extending edge is formed on the outer side wall of the left ring body 15 at the right side of the first positioning annular groove 151, and the left side wall of the radially extending edge is a conical wall surface, with a small outer diameter at the left end and a large outer diameter at the right end;

[0034] Furthermore, radially extending edges are formed on the outer side walls of the right ring body 16 on the left and right sides of the second positioning annular groove 161, and the side walls of the opposite walls of the two radially extending edges are conical wall surfaces, and the outer diameters of the two conical wall surfaces are small at the ends close to each other and large at the ends far away from each other.

[0035] Furthermore, the central rotating shaft 14 is inserted into the middle axial through hole of the guide support roller 13 and is movably connected to the guide support roller 13 through a bearing.

[0036] Furthermore, vertical supporting feet 111 are fixed to the bottom surfaces of the front and rear ends of the two side beams 11, and an intermediate cross beam 112 is fixed between the two corresponding vertical supporting feet 111 at the front and rear ends. The front and rear ends of the intermediate cross beam 112 are fixed to the inner side walls of the corresponding two vertical supporting feet 111, and the two ends of the intermediate connecting beam 113 extending left and right are fixed to the middle inner side walls of the two intermediate cross beams 112. A lifting cylinder 17 is provided in the middle of the bottom surface of the intermediate connecting beam 113, and the top end of the push rod of the lifting cylinder 17 extends out of the top surface of the intermediate connecting beam 113 and is fixed with a lifting plate 18. A vertical guide rod is fixed to the bottom surface of the edge of the lifting plate 18, and the vertical guide rod is inserted into the vertical guide through hole formed on the yellow intermediate connecting beam 113. A conical pressing roller body 20 is installed on the lifting plate 18, which cooperates with the outer side wall of the rim of the wheel hub 100 to be processed.

[0037] Furthermore, an upper fixed plate 21 is provided on the top surface of the lifting plate 18, and an elongated through groove 22 extending left and right is formed at the front and rear of the upper fixed plate 21. The screw parts of four fixing bolts 23 are inserted into the left and right parts of the two elongated through grooves 22, and the lower part of the screw part of the fixing bolt 23 is inserted into the corresponding lower elongated through groove formed at the front or rear of the lifting plate 18. The bottom end of the screw part of the fixing bolt 23 extends out of the lower elongated through groove, and the first nut 1, the second nut 2 and the third nut 3 are screwed on the screw part of the fixing bolt 23. The top surface of the first nut 1 is pressed against the bottom surface of the upper fixed plate 21, the bottom surface of the rotating part of the fixing bolt 23 is pressed against the top surface of the upper fixed plate 21, the bottom surface of the second nut 2 is pressed against the top surface of the lifting plate 18, and the top surface of the third nut 3 is pressed against the bottom surface of the lifting plate 18.

[0038] Furthermore, bending support frames 24 are fixed to the left and right parts of the top surface of the upper fixed plate 21, and vertical adjustment grooves 241 are formed in the middle of the vertical plates of the two bending support frames 24. The intermediate shaft 25 is inserted into the middle axial through hole of the conical pressure roller body 20 and is movably connected through bearings. The screw parts at the left and right ends of the intermediate shaft 25 extend out of the left and right ends of the conical pressure roller body 20 and are inserted into the corresponding vertical adjustment grooves 241, and the outer ends of the screw parts of the intermediate shaft 25 extend out of the outer ends of the corresponding vertical adjustment grooves 241.

[0039] Furthermore, a lower adjustment plate 250 is provided below the conical pressure roller body 20, and upwardly extending side bending plates 251 are formed on the left and right side walls of the lower adjustment plate 250, and through holes are formed in the middle of the two side bending plates 251, and the corresponding screw portion of the intermediate shaft 25 is inserted in the through hole, and a spacer sleeve is inserted on the screw portion between the side bending plate 251 and the corresponding vertical plate of the bending support frame 24.

[0040] A buffer spring 26 is fixed to the middle of the bottom surface of the lower adjustment plate 250, and a vertical guide sleeve 211 is fixed to the middle top surface of the upper fixed plate 21. The lower part of the buffer spring 26 is inserted into the vertical guide sleeve 211, and the bottom end of the buffer spring 26 is pressed against the top surface of the upper fixed plate 21.

[0041] Furthermore, the front and rear portions of the top surface of the mounting side plate 12 are formed with an upper plug hole 121 extending downward, and the bottom end of the upper plug hole 121 is communicated with a waist-shaped through groove 122 extending forward and backward formed on the front or rear portion of the mounting side plate 12;

[0042] The screw rods at both ends of the central rotating shaft 14 of the guide support roller 13 extend out of the left and right ends of the guide support roller 13 and are inserted into the corresponding waist-shaped through grooves 122 (the screw rods of the central rotating shaft 14 of the guide support roller 13 are formed with radial through holes at the waist-shaped through grooves 122, and positioning through holes are formed on the side walls of the waist-shaped through grooves 122 corresponding to the radial through holes, and pins are clamped in the corresponding positioning through holes and radial through holes to fix and position the central rotating shaft 14), the outer ends of the screw rods at both ends of the central rotating shaft 14 extend out of the corresponding outer ends of the waist-shaped through grooves 122 and are screwed with external fixing nuts 141, and the inner end surface of the external fixing nut 141 is pressed against the outer side wall of the corresponding mounting side plate 12.

[0043] Furthermore, a plurality of vertical support columns are fixed on the ground around the mounting frame 10, and the horizontal fixing plate 50 is located directly above the mounting frame 10;

[0044] The horizontal fixed plate 50 is provided with a grabbing mechanism;

[0045] The grabbing mechanism includes vertical fixing plates 51 fixed to the left and right parts of the top surface of the horizontal fixing plate 50, and the two ends of the transverse moving screw 52 are movably connected to the two vertical fixing plates 51 through bearings. A moving servo motor 53 is fixed to the outer wall of one of the vertical fixing plates 51, and the output shaft of the moving servo motor 53 is a spline shaft, which is inserted into the spline hole at one end of the transverse moving screw 52. The transverse moving screw 52 is driven to rotate by the moving servo motor 53, and the transverse moving block 54 is screwed on the transverse moving screw 52. The top surfaces of the two vertical fixing plates 51 are fixed with the same upper transverse plate 55, and the bottom surface of the upper transverse plate 55 is fixed with a guide rail 56 extending left and right, and the top surface of the transverse moving block 54 is fixed with an upper guide slider, and the guide rail 56 is inserted in the slide groove of the upper guide slider;

[0046] A connecting column extending downward is fixed to the bottom of the lateral moving block 54, and the lower part of the connecting column extends out of the lateral moving through groove extending left and right formed in the middle of the horizontal fixing plate 50. A first fixing plate is fixed to the bottom end of the connecting column, and an adjusting cylinder 57 is fixed to the top surface of the first fixing plate. The bottom end of the push rod of the adjusting cylinder 57 extends out of the bottom surface of the first fixing plate and is fixed to a lower lifting plate. An upper guide rod is fixed to the top surface of the lower lifting plate, and the upper guide rod is inserted into the wire through hole of the first fixing plate. The left part of the lower lifting plate extends to the left, and a left fixing plate is fixed to its bottom end. The left side of the left fixing plate A transverse sleeve 58 is fixed to the middle of the side wall, and side connecting frames are fixed to the upper, lower, front and rear parts of the outer side wall of the transverse sleeve 58. A clamping cylinder 59 is fixed to the side connecting frame. The end of the push rod of the clamping cylinder 59 extends out of the outer side wall of the corresponding side connecting frame and is fixed with an arc-shaped clamping block 60. An elastic anti-sliding block 62 is fixed to the outer side wall of the arc-shaped clamping block 60, and the elastic anti-sliding block 62 corresponds to the inner side wall of the rim of the wheel hub 100; a guide rod is fixed to the inner side wall of the arc-shaped clamping block 60, and the guide rod is inserted into the guide through hole of the corresponding side plate on the side connecting frame.

[0047] A side fixing plate extending left and right is fixed to the bottom surface of the horizontal fixing plate 50 at the rear of the transverse moving groove, and the first proximity switch 4, the second proximity switch 5 and the third proximity switch 6 are fixed to the left, middle and right parts of the side fixing plate respectively, and a sensing column 7 is fixed on the rear side wall of the lower part of the connecting column, and the sensing column 7 corresponds to the first proximity switch 4, the second proximity switch 5 and the third proximity switch 6.

[0048] The cylinders in this embodiment are all connected to the corresponding solenoid valves of the pneumatic system through connecting air pipes, and control is achieved through the operation of the pneumatic system. The relevant electrical components of the pneumatic system and all electrical components of this embodiment are electrically connected to the control host through electrical connecting lines, and the operation is controlled by the control host. They are all conventional structures and will not be described in detail here. Similarly, the wheel hub conveying mechanism is also an existing conventional structure and will not be described in detail here.

[0049] When this embodiment is in use, it is realized by the motor operation of the hub conveying mechanism, and its hub 100 is conveyed from back to front until the main proximity switch 9 fixed on the connecting rod fixed on the left top surface of the horizontal fixed plate 50 senses the vertical rod, indicating that the hub 100 is in place (wherein, when the conveying chain 30 is running, its vertical rod will have a slight shake with the conveying chain 30, and this shaking amplitude is small and does not affect the sensing, and as long as the sensing end of the main proximity switch 9 senses the vertical rod once, no matter how the vertical rod shakes, the control host controls the motor of the hub conveying mechanism to stop running, generally stopping for 2 to 3 minutes, and then controlling the conveying through the control host to facilitate the subsequent conveying of the hub 100 to the place for processing). At this time, the sound insulation cotton 200 to be adhered is manually placed above the middle of the two guide support rollers 13 in advance, and at the same time, the adhesive is coated on the sound insulation cotton 200;

[0050] Then, the mobile servo motor 53 is operated to move the transverse sleeve 58 to the left until it enters the corresponding wheel hub 100. At this time, the right part of the horizontal fixing column 32 will be inserted into the transverse sleeve 58, but the inner diameter of the transverse sleeve 58 must be at least 2 cm larger than the outer wall of the horizontal fixing column 32. Therefore, when the wheel hub 100 is in place and is sensed, even if there is a certain small deviation, it will not affect the insertion of the transverse sleeve 58. At this time, the first proximity switch 4 senses the sensing column 7, indicating that the transverse sleeve 58 has moved into place. At this time, the push rods of the four clamping cylinders 59 push, so that the four elastic anti-sliding blocks 62 are pressed against the inner wall of the rim of the wheel hub 100 to clamp it;

[0051] An intermediate support beam is fixed in the middle between the two vertical support columns on the left, a horizontal plate is fixed on its left side wall, a vertical plate is fixed on the left end top surface of the horizontal plate, a positioning and fixing cylinder 70 is fixed on the upper left side wall of the vertical plate, the end of the push rod of the positioning and fixing cylinder 70 extends out of the right side wall of the vertical plate and is fixed with a pushing block (which is a circular block), and an electromagnet block 71 (which is a circular block) is fixed on the right side wall of the pushing block. At this time, after the wheel hub 100 is clamped, the control host controls the corresponding solenoid valve of the pneumatic system to operate, so that the positioning and fixing cylinder 70 operates, and at the same time, the electromagnet block 71 is turned on, so that it presses against the left side wall of the vertical limit plate 31 and adsorbs and fixes it, so that the vertical limit plate 31 will no longer shake;

[0052] Then, the moving servo motor 53 is operated to move the wheel hub 100 out of the horizontal fixed column 32 until the second proximity switch 5 senses the sensing column 7, indicating that the wheel hub 100 has moved into place. At this time, the push rod of the adjusting cylinder 57 is pushed to lower the wheel hub 100 and place it on the left ring body 15 and the right ring body 16. The wheel rims at the left and right ends of the wheel hub 100 are in the first positioning annular groove 151 and the second positioning annular groove 161. The left side wall of the radially extending edge of the first positioning annular groove 151 is close to the inner side wall of the left wheel rim, and the right side wall of the radially extending edge at the left end of the second positioning annular groove 161 is close to the inner side wall of the right wheel rim, so that the placement is achieved. Then, all the push rods of the clamping cylinders 59 are retracted, and the moving servo motor 53 is operated to make the transverse sleeve 58 move rightward and move out of the wheel hub 100 until the sensing column 7 is sensed by the third proximity switch 6, indicating that it has been completely moved out into place. Then, the push rod of the adjusting cylinder 57 is retracted.

[0053] At this point, the loading is completed. At this point, the position of the wheel hub 100 needs to be manually checked to see if it is installed in place. If it is not installed in place, manual adjustment is required. At the same time, the wheel hub 100 needs to be rotated to ensure that its valve mounting hole is vertically upward.

[0054] Then, the push rod of the lifting cylinder 17 is pushed to lift the conical pressing roller body 20, and the middle sound insulation cotton 200 is lifted upward and pressed against the bottom surface of the rim of the wheel hub 100. Then, the sound insulation cotton 200 on the right is completely bonded and fixed on the rim by manual clockwise rotation, and then the sound insulation cotton 200 on the left is completely bonded and fixed on the rim by counterclockwise rotation to complete the installation. During installation, if the sound insulation cotton 200 is too long and blocks the valve installation hole, the excess part needs to be cut off manually.

[0055] After the installation is completed, the push rod of the lifting cylinder 17 retracts, and the push rod of the adjusting cylinder 57 pushes to lower the transverse sleeve 58. The wheel hub 100 can be installed on the horizontal fixed column 32 and clamped on the elastic protective sleeve 33 by the opposite operation of the previous installation method. Then, the transverse sleeve 58 moves back to the right, and the motor of the wheel hub conveying mechanism runs to move the wheel hub 100 forward. Then, when the next wheel hub 100 is in place, the installation can be continued. It has good use effect and high efficiency, which greatly improves the installation efficiency. Moreover, it does not need to carry the wheel hub 100 over a large range, which greatly reduces the manual labor and improves the production efficiency.

[0056] Finally, it should be pointed out that the above embodiments are only representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention should be considered to belong to the protection scope of the present invention.

Claims

1. An aluminum alloy wheel hub sound insulation cotton installation device, comprising a mounting frame (10), characterized in that: The mounting frame (10) comprises side beams (11) extending forward and backward on the left and right sides of the top, and transverse connecting beams are provided at the front and rear parts between the two side beams (11), and the two ends of the transverse connecting beams are fixed to the inner side walls of the two side beams (11); The top surfaces of the two side beams (11) are both fixed with mounting side plates (12) extending forward and backward, the two guide support rollers (13) are located at the front and rear parts between the two mounting side plates (12), and the two ends of the central rotating shaft (14) of the guide support roller (13) are mounted on the two mounting side plates (12); A left ring body (15) and a right ring body (16) are installed in the middle of the two guide support rollers (13); a first positioning annular groove (151) is formed on the middle outer wall of the left ring body (15); a second positioning annular groove (161) is formed on the middle outer wall of the right ring body (16); the left wheel rim and the right wheel rim of the wheel hub (100) to be processed correspond to the corresponding first positioning annular groove (151) and the second positioning annular groove (161); The front and rear end bottom surfaces of the two side beams (11) are both fixed with vertical support feet (111), an intermediate cross beam (112) is fixed between the two corresponding front and rear vertical support feet (111), the front and rear ends of the intermediate cross beam (112) are fixed on the inner side walls of the two corresponding vertical support feet (111), the two ends of the intermediate connecting beam (113) extending left and right are fixed on the middle inner side walls of the two intermediate cross beams (112), a lifting cylinder (17) is provided in the middle of the bottom surface of the intermediate connecting beam (113), the top end of the push rod of the lifting cylinder (17) extends out of the top surface of the intermediate connecting beam (113) and is fixed with a lifting plate (18), and a conical pressing roller body (20) is installed on the lifting plate (18) and matches with the outer side wall of the rim of the wheel hub (100) to be processed.

2. The aluminum alloy wheel hub sound insulation cotton installation device according to claim 1 is characterized by: A radially extending edge is formed on the outer side wall of the left ring body (15) at the right side of the first positioning annular groove (151), and the left side wall of the radially extending edge is a conical wall surface, with a smaller outer diameter at the left end and a larger outer diameter at the right end; The outer wall of the right ring body (16) at the left and right sides of the second positioning annular groove (161) is formed with radially extending edges, and the side walls of the two radially extending edges facing each other are conical wall surfaces, and the outer diameters of the two conical wall surfaces are small at the ends close to each other and large at the ends far away from each other.

3. The aluminum alloy wheel hub sound insulation cotton installation device according to claim 1 is characterized by: The central rotating shaft (14) is inserted into the middle axial through hole of the guide support roller (13) and is movably connected to the guide support roller (13) through a bearing.

4. The aluminum alloy wheel hub sound insulation cotton installation device according to claim 1 is characterized by: The top surface of the lifting plate (18) is provided with an upper fixing plate (21), and the front and rear parts of the upper fixing plate (21) are formed with long through grooves (22) extending left and right. The screw parts of four fixing bolts (23) are inserted into the left and right parts of the two long through grooves (22), and the lower parts of the screw parts of the fixing bolts (23) are inserted into the corresponding lower long through grooves formed at the front or rear part of the lifting plate (18). The bottom ends of the screw parts of the fixing bolts (23) extend out of the lower part. The fixing bolt (23) is provided with a long through groove, and a first nut (1), a second nut (2) and a third nut (3) are screwed on the screw portion of the fixing bolt (23), the top surface of the first nut (1) is pressed against the bottom surface of the upper fixing plate (21), the bottom surface of the rotating portion of the fixing bolt (23) is pressed against the top surface of the upper fixing plate (21), the bottom surface of the second nut (2) is pressed against the top surface of the lifting plate (18), and the top surface of the third nut (3) is pressed against the bottom surface of the lifting plate (18).

5. The aluminum alloy wheel hub sound insulation cotton installation device according to claim 4 is characterized by: The left and right parts of the top surface of the upper fixed plate (21) are both fixed with bending support frames (24), the middle parts of the vertical plates of the two bending support frames (24) are formed with vertical adjustment grooves (241), the intermediate shaft (25) is inserted into the middle axial through hole of the conical pressing roller body (20) and is movably connected through a bearing, the screw parts at the left and right ends of the intermediate shaft (25) extend out of the left and right ends of the conical pressing roller body (20) and are inserted into the corresponding vertical adjustment grooves (241), and the outer ends of the screw parts of the intermediate shaft (25) extend out of the outer ends of the corresponding vertical adjustment grooves (241).

6. The aluminum alloy wheel hub sound insulation cotton installation device according to claim 5 is characterized by: A lower adjustment plate (250) is provided below the conical pressing roller body (20), and side bending plates (251) extending upward are formed on the left and right side walls of the lower adjustment plate (250), and through holes are formed in the middle of the two side bending plates (251), and the corresponding screw parts of the intermediate shaft (25) are inserted into the through holes. A buffer spring (26) is fixed in the middle of the bottom surface of the lower adjustment plate (250), and a vertical guide sleeve (211) is fixed on the middle top surface of the upper fixed plate (21), and the lower part of the buffer spring (26) is inserted into the vertical guide sleeve (211), and the bottom end of the buffer spring (26) is pressed against the top surface of the upper fixed plate (21).

7. The aluminum alloy wheel hub sound insulation cotton installation device according to claim 1 is characterized by: The front and rear parts of the top surface of the mounting side plate (12) are both formed with an upper plug hole (121) extending downward, and the bottom end of the upper plug hole (121) is communicated with a waist-shaped through groove (122) extending forward and backward formed on the front or rear part of the mounting side plate (12); The screw rods at both ends of the central rotating shaft (14) of the guide support roller (13) extend out of the left and right ends of the guide support roller (13) and are inserted into the corresponding waist-shaped through grooves (122); the outer ends of the screw rods at both ends of the central rotating shaft (14) extend out of the outer ends of the corresponding waist-shaped through grooves (122) and are screwed with external fixing nuts (141); the inner end surface of the external fixing nut (141) is pressed against the outer side wall of the corresponding mounting side plate (12).

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