A steel wheel rim air tightness testing machine

Abstract

The invention discloses an air tightness tester for a steel wheel rim, which belongs to the technical field of wheel rim detection. The machine comprises a bracket and a detection mechanism, wherein the detection mechanism comprises: a fixed frame, a first fixed plate, a rotating disk, a sealing gasket, a positioning component, a telescopic component and a rotating component; the telescopic component can be used to realize the sealing operation of the first fixed plate and the second fixed plate on the rim, the positioning component can be used to facilitate the positioning and clamping operation of rims of different sizes, and the rim and the sealing gasket can be conveniently contacted fully to improve the sealing effect; the rotating component can be used to realize the rotating disk driving the rim to rotate, and the comprehensive detection operation of the rim can be conveniently performed; the air tightness detection can be quickly realized by observing whether there are bubbles coming out from the bottom end of the inner side of the water tank; the rim does not need to be completely immersed in the inner side of the water tank; the water stains on the surface of the rim can be dried during the rotation of the rim to avoid artificial drying; the operation is convenient and the detection efficiency is effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of wheel rim detection, and in particular relates to an air tightness detection machine for a steel wheel rim. Background Art

[0002] Wheel rims are parts around wheels where tires are installed. Air tightness testing is an important part of the production of steel wheel rims. The rims are formed by welding a piece of sheet metal. Since the welding quality cannot be controlled to be 100% perfect, there are often small cracks, holes and other defects at the welds. Since the rims are parts around wheels where tires are installed, these welding defects can cause tire leaks, which is a great hazard to driving safety. Therefore, during the production of steel wheel rims, it is necessary to test the air tightness of each rim workpiece.

[0003] During use, the existing wheel rim air tightness tester is not convenient for completely sealing wheel rims of different sizes, which easily causes incomplete sealing and affects the test effect. In addition, when using water for air tightness test, the entire wheel rim needs to be immersed in a water tank. After the test is completed, water stains remain on the surface of the wheel rim, which need to be wiped manually. The operation is cumbersome and reduces the test efficiency.

[0004] In order to avoid the above technical problems, it is necessary to provide a steel wheel rim air tightness detection machine to overcome the above defects in the prior art. Summary of the invention

[0005] The object of the present invention is to provide a steel wheel rim air tightness detection machine to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A steel wheel rim air tightness tester comprises a bracket and a test mechanism, wherein the test mechanism comprises:

[0008] A fixing frame is fixedly mounted on the inner side of the top end of the bracket, a vertical first fixing plate is mounted on the fixing frame, a rotating disk is mounted on the first fixing plate, the rotating disk is rotatably connected to the first fixing plate, a sealing gasket is mounted on one side of the rotating disk, a positioning assembly is arranged on one side of the first fixing plate, for supporting and positioning wheel rims of different sizes, a second fixing plate is arranged on the side of the positioning assembly away from the first fixing plate, the first fixing plate is parallel to the second fixing plate, a rotating disk and a sealing gasket are also mounted on the second fixing plate, a telescopic assembly is also mounted on the fixing frame, the telescopic assembly is connected to the second fixing plate, for driving the second fixing plate to move its position, and adjusting the distance between the first fixing plate and the second fixing plate, and an air injection assembly is also mounted on the first fixing plate, for performing an air injection operation on the inner side of the wheel rim after the wheel rim is sealed;

[0009] A rotating assembly is installed between the first fixed plate and the second fixed plate, which is used to drive the rotating disks on the first fixed plate and the second fixed plate to rotate simultaneously. A first telescopic member is installed at the bottom end of the inner side of the bracket, and a water tank is fixedly installed at the output end of the first telescopic member, which is used to drive the water tank to move in the vertical direction. A control console is also provided on the inner side of the bracket.

[0010] As a further technical solution of the present invention: the positioning component includes:

[0011] The top end of the sliding panel also is provided with a button bar, and the button bar has a button bar connected to the bottom end of the sliding panel, and the button bar is connected with a button bar at the bottom end of the sliding panel, so that the sliding panel can be connected with the button bar in an orderly manner.

[0012] As a further technical solution of the present invention: the clamping assembly comprises:

[0013] The clamping frame is fixedly mounted on one side of the bottom end of the moving frame, a horizontal short rod is fixedly mounted on the inner side of the clamping frame, a moving block is also provided on the inner side of the clamping frame, a limiting hole is provided on the moving block, the short rod passes through the limiting hole, a supporting frame is fixedly mounted on the moving block, a clamping roller is mounted on the end of the supporting frame away from the moving block, the clamping roller is rotatably connected to the supporting frame, the supporting frame is inclined, two supporting frames and clamping rollers are each provided and symmetrically distributed on the moving block, an elastic member is sleeved on the outer side of the short rod, one end of the elastic member is connected to the moving block, and the other end is connected to the inner wall of the clamping frame.

[0014] As a further technical solution of the present invention: the telescopic assembly comprises:

[0015] The positioning hole is located on the fixing frame and is horizontal. A positioning rod is provided on the inner side of the positioning hole. The positioning rod passes through the positioning hole and is slidably connected to the positioning hole. An adjusting frame is fixedly installed on the end of the positioning rod away from the fixing frame. The bottom end of the adjusting frame is fixedly connected to the second fixing plate. A third telescopic member is fixedly installed on the top end of the fixing frame. The output end of the third telescopic member is fixedly connected to the adjusting frame, and is used to drive the adjusting frame to drive the second fixing plate to move along the positioning hole.

[0016] As a further technical solution of the present invention: the gas injection assembly comprises:

[0017] An air injection nozzle is installed on the rotating disk of the first fixed plate, and the air injection nozzle is located at the center of the rotating disk. An air compressor is fixedly installed on the fixed frame, and a connecting pipe is fixedly installed on the output end of the air compressor. The connecting pipe is connected to the air injection nozzle at one end away from the air compressor, and the connecting pipe passes through the rotating disk and is rotatably connected to the rotating disk.

[0018] As a further technical solution of the present invention: the rotating assembly comprises:

[0019] The first gear ring is fixedly mounted on the rotating disk of the first fixed plate, and a motor frame is also mounted on the inner side of the fixed frame, and a second driving member is fixedly mounted on the motor frame, and a second driving rod is fixedly mounted on the output end of the second driving member, and a first driving tooth is mounted on the outer side of the second driving rod, and the first driving tooth is meshed with the first gear ring, and a second gear ring is fixedly mounted on the rotating disk of the second fixed plate, and a rotating cylinder is mounted on the second fixed plate, and the rotating cylinder passes through the second fixed plate and is rotatably connected to the second fixed plate, and a second driving tooth is fixedly mounted on the outer side of the rotating cylinder, and the second driving tooth is meshed with the second gear ring, and the second driving rod passes through the rotating cylinder, and the rotating cylinder is slidably connected to the second driving rod, and a protrusion is provided on the inner side of the rotating cylinder, and a connecting groove is provided on the outer wall of the second driving rod, and the connecting groove is slidably connected with the protrusion, so that the second driving rod drives the rotating cylinder to rotate.

[0020] As a further technical solution of the present invention: a heating frame is also fixedly installed on the movable frame, the heating frame is located at the top of the clamping assembly, an air inlet is provided at the top of the heating frame, the bottom side of the heating frame is inclined and has an air outlet, a fan is installed on the inside of the heating frame, and a heating wire is installed at the air outlet of the heating frame for heating the air discharged from the heating frame.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention provides a steel wheel rim air tightness testing machine, wherein the fixing frame is fixedly mounted on the inner top end of the bracket, and the fixing frame is provided with a first fixing plate, a rotating disk and a sealing gasket, and the sealing operation of the first fixing plate and the second fixing plate can be realized by a telescopic component, and the positioning and clamping operation of rims of different sizes can be conveniently performed by a positioning component, so that the rim and the sealing gasket can be fully contacted, the sealing effect can be improved, and the air tightness testing operation can be conveniently performed, and the water inside the water tank can be brought into contact with the rim by a first telescopic component, and the rotating disk can be used to drive the rim to rotate by a rotating component, so that a comprehensive testing operation of the rim can be conveniently performed, and the air tightness testing can be quickly performed by observing whether there are bubbles coming out from the inner bottom end of the water tank, the rim does not need to be completely immersed in the inner side of the water tank, and the water stains on the surface of the rim can be dried during the rotation of the rim to avoid artificial drying, the operation is convenient, and the testing efficiency is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 It is a schematic diagram of the structure of the inner side of the bracket in the present invention.

[0025] Figure 3 It is a schematic structural diagram of the inner side of the bracket in the present invention.

[0026] Figure 4 It is a schematic diagram of the structure between the first fixing plate and the second fixing plate in the present invention.

[0027] Figure 5 For the present invention Figure 4 Schematic diagram of the structure enlarged at point A in the middle.

[0028] Figure 6 It is a schematic diagram of the structure of the positioning component in the present invention.

[0029] Figure 7 It is a schematic diagram of the structure of the clamping assembly in the present invention.

[0030] Figure 8 It is a schematic diagram of the structure of the gas injection component in the present invention.

[0031] Fig. 9 It is a schematic diagram of the structure on the mobile rack in the present invention.

[0032] Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure at point B.

[0033] In the accompanying drawings: 1- bracket, 2- fixed frame, 3- first fixed plate, 4- rotating disk, 5- sealing pad, 6- second fixed plate, 7- positioning assembly, 71- limit frame, 72- moving plate, 73- baffle, 74- second telescopic member, 75- slide rail, 76- slider, 77- moving frame, 78- first driving member, 79- first driving rod, 70- clamping assembly, 701- clamping frame, 702- short rod, 703- moving block, 704- limit hole, 705- support frame, 706- clamping roller, 707- elastic member, 8- telescopic assembly, 81- Positioning hole, 82-positioning rod, 83-adjusting frame, 84-third telescopic member, 9-rotating assembly, 91-first gear ring, 92-motor frame, 93-second driving member, 94-second driving rod, 95-first driving tooth, 96-second gear ring, 97-rotating cylinder, 98-second driving tooth, 99-bump, 90-connecting groove, 10-gas injection assembly, 101-gas injection nozzle, 102-air compressor, 103-connecting pipe, 11-first telescopic member, 12-water tank, 13-control console, 14-heating frame, 15-fan, 16-heating wire. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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 intended to limit the present invention.

[0035] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0036] like Figures 1 to 10 As shown in the embodiment provided by the present invention, a steel wheel rim air tightness detection machine includes a bracket 1 and a detection mechanism, characterized in that the detection mechanism includes:

[0037] A fixing frame 2 is fixedly mounted on the inner side of the top end of the bracket 1, a vertical first fixing plate 3 is mounted on the fixing frame 2, a rotating disk 4 is mounted on the first fixing plate 3, the rotating disk 4 is rotatably connected to the first fixing plate 3, a sealing gasket 5 is mounted on one side of the rotating disk 4, a positioning assembly 7 is provided on one side of the first fixing plate 3 for supporting and positioning rims of different sizes, a second fixing plate 6 is provided on the side of the positioning assembly 7 away from the first fixing plate 3, the first fixing plate 3 is parallel to the second fixing plate 6, a rotating disk 4 and a sealing gasket 5 are also mounted on the second fixing plate 6, a telescopic assembly 8 is also mounted on the fixing frame 2, the telescopic assembly 8 is connected to the second fixing plate 6, for driving the second fixing plate 6 to move its position and adjusting the distance between the first fixing plate 3 and the second fixing plate 6, and an air injection assembly 10 is also mounted on the first fixing plate 3 for performing air injection operation on the inner side of the rim after the rim is sealed;

[0038] A rotating assembly 9 is installed between the first fixed plate 3 and the second fixed plate 6, and is used to drive the rotating disks 4 on the first fixed plate 3 and the second fixed plate 6 to rotate simultaneously. A first telescopic member 11 is installed at the bottom end of the inner side of the bracket 1, and a water tank 12 is fixedly installed at the output end of the first telescopic member 11, and is used to drive the water tank 12 to move in the vertical direction. A control console 13 is also provided on the inner side of the bracket 1.

[0039] In the present embodiment, the fixing frame 2 is fixedly mounted on the top inner side of the bracket 1, and the fixing frame 2 is provided with a first fixing plate 3, a rotating disk 4 and a sealing gasket 5. The sealing operation of the first fixing plate 3 and the sealing gasket 5 on the second fixing plate 6 can be realized by the telescopic component 8. The positioning and clamping operation of rims of different sizes can be conveniently performed by the positioning component 7, so that the rim and the sealing gasket 5 can be fully contacted, the sealing effect can be improved, and the airtightness detection operation can be conveniently performed. The water inside the water tank 12 can be contacted with the rim by the first telescopic member 11, and the rotating disk 4 can be used to drive the rim to rotate by the rotating component 9, so that the comprehensive detection operation of the rim can be conveniently performed. The airtightness detection can be quickly performed by observing whether there are bubbles coming out from the bottom inner side of the water tank 12, and the rim does not need to be completely Immersed in the inner side of the water tank 12, the water stains on the surface of the rim can be dried during the rotation of the rim, avoiding artificial drying, and the operation is convenient, which effectively improves the detection efficiency; rolling bearings are installed between the rotating disk 4 and the first fixed plate 3 and the second fixed plate 6, and the rotating disk 4 can perform stable rotation operations on the first fixed plate 3 and the second fixed plate 6. The first telescopic member 11 can be a telescopic motor or a cylinder, etc. In this embodiment, the first telescopic member 11 is a telescopic motor. The first telescopic member 11 is provided with multiple and evenly distributed on the bottom side of the water tank 12, which is convenient for driving the water tank 12 to move in the vertical direction, and convenient for the water inside the water tank 12 to contact with the rim, and convenient for air tightness detection operations. The water tank 12 can be transparent, which is convenient for staff to observe and operate.

[0040] In one embodiment of the present invention, see Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 7 , Fig. 9 and Fig.10 , the positioning component 7 includes:

[0041] The limit frame 71 is fixedly mounted on the top of the first fixed plate 3, the limit frame 71 is fixedly connected to the fixed frame 2, a movable plate 72 is provided inside the limit frame 71, the movable plate 72 is slidably connected to the limit frame 71, the movable plate 72 is horizontal, a baffle 73 is fixedly mounted on the end of the movable plate 72 away from the limit frame 71, a second telescopic member 74 is fixedly mounted on the top of the limit frame 71, the output end of the second telescopic member 74 is fixedly connected to the baffle 73, and a slide rail 7 is fixedly mounted on the bottom side of the end of the movable plate 72 away from the limit frame 71 5. A slider 76 is provided on the slide rail 75, a moving frame 77 is fixedly installed at the bottom end of the slider 76, a first driving member 78 is fixedly installed at the middle of the slide rail 75, a first driving rod 79 is fixedly installed at the output end of the first driving member 78, the first driving rod 79 passes through the slider 76 and is threadedly connected to the slider 76, and a clamping assembly 70 is fixedly installed on the side of the bottom end of the moving frame 77; two sliders 76, moving frames 77 and clamping assemblies 70 are each provided, and are divided into two groups and symmetrically distributed on the bottom side of the slide rail 75, for positioning and clamping the rim.

[0042] The clamping assembly 70 comprises:

[0043] The clamping frame 701 is fixedly mounted on one side of the bottom end of the movable frame 77, a horizontal short rod 702 is fixedly mounted on the inner side of the clamping frame 701, a movable block 703 is also arranged on the inner side of the clamping frame 701, a limiting hole 704 is arranged on the movable block 703, the short rod 702 passes through the limiting hole 704, a supporting frame 705 is fixedly mounted on the movable block 703, a clamping roller 706 is mounted on the end of the supporting frame 705 away from the movable block 703, the clamping roller 706 is rotatably connected to the supporting frame 705, the supporting frame 705 is inclined, two supporting frames 705 and clamping rollers 706 are each provided and symmetrically distributed on the movable block 703, an elastic member 707 is sleeved on the outer side of the short rod 702, one end of the elastic member 707 is connected to the movable block 703, and the other end is connected to the inner wall of the clamping frame 701.

[0044] In the present embodiment, the limit frame 71 is fixedly mounted on the top of the first fixed plate 3, and the shape of the limit frame 71 is a square shape. A movable plate 72 is provided on the inner side of the limit frame 71, and the movable plate 72 is horizontal. A second telescopic member 74 and a baffle 73 are installed between the movable plate 72 and the limit frame 71. The second telescopic member 74 can be a telescopic motor or a cylinder, etc. In the present embodiment, the second telescopic member 74 is a telescopic motor, which is convenient for controlling the movable plate 72 to move along the inner side of the limit frame 71, and further realizes the distance adjustment between the movable frame 77 and the clamping assembly 70 and the first fixed plate 3, so as to facilitate the positioning and clamping operation of the wheel rim. A slide rail 75 and a slider 76 are fixedly mounted on the bottom side of the movable plate 72, and the slider 76 is slidably connected to the slide rail 75. The first driving member 78 is fixedly mounted on the middle part of the slide rail 75. The first driving member 78 is a rotary motor or a stepping motor, etc. In the present embodiment, the first driving member 78 is a dual-axis motor , the two output ends of the first driving member 78 are both equipped with a first driving rod 79, which is a threaded rod in this embodiment. The first driving rod 79 passes through the slider 76 and is threadedly connected to the slider 76. When the first driving member 78 controls the first driving rod 79 to rotate, it is convenient to realize that the slider 76 moves along the first driving rod 79. The slider 76, the moving frame 77 and the clamping assembly 70 are each provided with two and symmetrically distributed on the inner side of the slide rail 75. When the first driving member 78 simultaneously controls the two first driving rods 79 to rotate, it is convenient to realize the relative movement of the two sliders 76, so that the clamping assembly 70 can clamp the rims of different gears and realize the positioning and clamping operation of the rim. The position of the clamping assembly 70 can be adjusted by the second telescopic member 74, so that the positioning and clamping operations of rims of different sizes at different positions are convenient, so as to maintain the stability of the rim after clamping and facilitate the subsequent sealing operation of the rim.

[0045] A clamping frame 701 is fixedly installed on the side of the bottom end of the movable frame 77, and a moving block 703 is provided on the inner side of the clamping frame 701. The moving block 703 can move its position inside the clamping frame 701. A limiting hole 704 is provided on the moving block 703. A short rod 702 is also fixedly installed on the inner side of the clamping frame 701. The short rod 702 passes through the limiting hole 704 to limit the moving trajectory of the moving block 703 inside the clamping frame 701. There are two short rods 702 and limiting holes 704, which are divided into two groups and distributed on the clamping frame 701 and the moving block 703. Elastic members 707 are sleeved on the outer sides of both ends of the short rod 702. The elastic member 707 can be a spring or rubber, etc. In this embodiment, the elastic member 707 is a spring. The moving block 703 extends out of the clamping frame A support frame 705 is fixedly installed at one end of 701, and the support frame 705 is inclined. A clamping roller 706 is installed at the end of the support frame 705 away from the moving block 703. A rolling bearing is installed between the clamping roller 706 and the support frame 705, and the clamping roller 706 can perform a stable rotation operation on the support frame 705. There are two support frames 705 and clamping rollers 706, which are divided into two groups and symmetrically installed on the moving block 703, which is convenient for positioning and clamping rims of different sizes. When the rotating component 9 drives the rim to rotate, the clamping roller 706 can rotate to effectively maintain the positioning and clamping effect of the rim. The elastic member 707 can be adjusted when the first fixed plate 3 and the second fixed plate 6 are used to seal the rim, thereby improving the sealing effect of the rim and facilitating operation.

[0046] In one embodiment of the present invention, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 , the telescopic assembly 8 comprises:

[0047] The positioning hole 81 is located on the fixing frame 2 and is horizontal. A positioning rod 82 is provided on the inner side of the positioning hole 81. The positioning rod 82 passes through the positioning hole 81 and is slidably connected to the positioning hole 81. An adjusting frame 83 is fixedly installed at one end of the positioning rod 82 away from the fixing frame 2. The bottom end of the adjusting frame 83 is fixedly connected to the second fixing plate 6. A third telescopic member 84 is fixedly installed at the top end of the fixing frame 2. The output end of the third telescopic member 84 is fixedly connected to the adjusting frame 83, so as to drive the adjusting frame 83 to drive the second fixing plate 6 to move along the positioning hole 81.

[0048] The gas injection assembly 10 comprises:

[0049] The gas injection nozzle 101 is installed on the rotating disk 4 of the first fixed plate 3, and the gas injection nozzle 101 is located at the center of the rotating disk 4. An air compressor 102 is fixedly installed on the fixed frame 2, and a connecting pipe 103 is fixedly installed on the output end of the air compressor 102. The connecting pipe 103 is connected to the gas injection nozzle 101 at one end away from the air compressor 102. The connecting pipe 103 passes through the rotating disk 4 and is rotatably connected to the rotating disk 4.

[0050] In the present embodiment, the positioning hole 81 is located on the fixing frame 2, a positioning rod 82 is provided inside the positioning hole 81, the positioning rod 82 is slidably connected to the positioning hole 81, the positioning rod 82 and the positioning hole 81 are both horizontal, an adjusting frame 83 is fixedly installed on the end of the positioning rod 82 away from the fixing frame 2, the top of the second fixing plate 6 is fixedly connected to the adjusting frame 83, the second fixing plate 6 can move with the adjusting frame 83, a third telescopic member 84 is fixedly installed on the fixing frame 2, the third telescopic member 84 can be a telescopic motor or a cylinder, etc., in the present embodiment, the third telescopic member 84 is a telescopic motor, the output end of the third telescopic member 84 is fixedly connected to the adjusting block, so as to facilitate the control of the second fixing plate 6 in the horizontal direction The position of the wheel rim can be moved to facilitate the sealing operation of the wheel rim. An air injection nozzle 101 is provided on the rotating disk 4 of the first fixed plate 3. The air injection nozzle 101 is located at the center of the rotating disk 4, which is convenient for the air injection operation and avoids blocking the sealing operation of the wheel rim. An air compressor 102 is installed on the fixed frame 2. A connecting pipe 103 is installed between the air compressor 102 and the air injection nozzle 101. The connecting pipe 103 passes through the rotating disk 4 and a rolling bearing is installed between the rotating disks 4, which is convenient for the air injection operation when driving the wheel rim to rotate. The bottom end of the wheel rim is immersed in the water tank 12. The wheel rim is driven to rotate by the rotating component 9 to complete the comprehensive detection operation of the air tightness of the wheel rim, avoiding the rim from being fully immersed in the water tank 12, and the operation is convenient.

[0051] In one embodiment of the present invention, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Fig. 9 , the rotating assembly 9 comprises:

[0052] The first gear ring 91 is fixedly mounted on the rotating disk 4 of the first fixed plate 3, a motor frame 92 is also mounted on the inner side of the fixed frame 2, a second driving member 93 is fixedly mounted on the motor frame 92, a second driving rod 94 is fixedly mounted on the output end of the second driving member 93, a first driving tooth 95 is mounted on the outer side of the second driving rod 94, the first driving tooth 95 is meshed and connected with the first gear ring 91, a second gear ring 96 is fixedly mounted on the rotating disk 4 of the second fixed plate 6, a rotating cylinder 97 is mounted on the second fixed plate 6, and the rotating cylinder 97 passes through the second fixed plate 6 and is rotatably connected to the second fixed plate 6. A second driving tooth 98 is fixedly installed on the outer side of the rotating cylinder 97. The second driving tooth 98 is meshingly connected with the second gear ring 96. The second driving rod 94 passes through the rotating cylinder 97. The rotating cylinder 97 is slidably connected to the second driving rod 94. A protrusion 99 is provided on the inner side of the rotating cylinder 97. A connecting groove 90 is provided on the outer wall of the second driving rod 94. The connecting groove 90 is slidably connected to the protrusion 99, so that the second driving rod 94 drives the rotating cylinder 97 to rotate.

[0053] In this embodiment, a first gear ring 91 is fixedly mounted on one end of the rotating disk 4 on the first fixed plate 3, and a motor frame 92 and a second driving member 93 are mounted on the fixed frame 2. The second driving member 93 can be a rotating motor or a stepping motor, etc. In this embodiment, the second driving member 93 is a rotating motor, and a second driving rod 94 is fixedly mounted on the output end of the second driving member 93. The second driving rod 94 is horizontal, and a first driving tooth 95 is fixedly mounted on the outer side of the second driving rod 94. The first driving tooth 95 is meshed and connected with the first gear ring 91. When the second driving member 93 drives the second driving rod 94 to rotate, the rotating disk 4 on the first fixed plate 3 can be rotated by the first driving tooth 95 and the first gear ring 91.

[0054] A second gear ring 96 is fixedly installed at one end of the rotating disk 4 on the second fixed plate 6, and a rotating cylinder 97 is also installed on the second fixed plate 6. The rotating cylinder 97 passes through the second fixed plate 6, and a rolling bearing is installed between the rotating cylinder 97 and the second fixed plate 6. The rotating cylinder 97 can perform a stable rotation operation on the second fixed plate 6. The second driving rod 94 passes through the rotating cylinder 97, and a second driving tooth 98 is fixedly installed on the outer side of the rotating cylinder 97. The second driving tooth 98 is meshed and connected with the second gear ring 96. A protrusion 99 and a connecting groove 90 are provided between the rotating cylinder 97 and the second driving rod 94. The connecting groove 90 is linear, which is convenient for the second The driving rod 94 moves along the rotating cylinder 97. When the second driving rod 94 rotates, the second driving rod 94 can drive the rotating cylinder 97 to rotate through the protrusion 99 and the connecting groove 90, and further realize the rotating disk 4 on the second fixed plate 6 to rotate. The first gear ring 91 and the second gear ring 96 have the same size, and the first driving tooth 95 and the second driving tooth 98 have the same size. When the second driving member 93 controls the second driving rod 94 to rotate, it is convenient to realize the simultaneous rotation of the rotating disk 4 on the first fixed plate 3 and the second fixed plate 6, which is convenient to drive the rim to rotate, and convenient to realize the comprehensive detection operation of the air tightness of the rim;

[0055] A heating frame 14 is also fixedly mounted on the movable frame 77, and the heating frame 14 is located at the top of the clamping assembly 70. An air inlet is arranged at the top of the heating frame 14, and the bottom side of the heating frame 14 is inclined and provided with an air outlet. A fan 15 is installed inside the heating frame 14, and a heating wire 16 is installed at the air outlet of the heating frame 14, which is used to heat the air discharged from the heating frame 14. A filter is installed at the air inlet to facilitate filtering the air entering the inner side of the heating frame 14. The heating frame 14, the fan 15 and the heating wire 16 are installed on both movable frames 77. Hot air can be blown to the surface of the rim by the heating wire 16 and the fan 15, so as to facilitate drying the surface of the rim. When the rim is rotating, the fan 15 and the heating wire 16 can realize comprehensive drying of the surface of the rim, which is convenient to operate. The bottom end of the heating frame 14 is inclined, so as to facilitate full contact between the hot air and the surface of the rim and accelerate the drying effect.

[0056] The working principle of the present invention is:

[0057] In the present invention, the wheel rim to be inspected is firstly positioned between the two clamping assemblies 70, and then the first driving member 78 is controlled to realize the clamping roller 706 to position and clamp the wheel rim, and then the third telescopic member 84 is controlled to realize the second fixing plate 6 to be close to the first fixing plate 3, and the wheel rim is sealed by the sealing gasket 5 on the first fixing plate 3 and the second fixing plate 6, and then the first telescopic member 11 is controlled to realize the position of the water tank 12 to rise, so that the bottom end of the wheel rim is immersed in the inner side of the water tank 12, and then the second driving member 93 is controlled to realize the rotation operation of the wheel rim, and at the same time, the air compressor 102 and The air injection nozzle 101 injects air into the inner side of the rim. During the air injection rotation process, the staff can observe whether there are bubbles coming out of the rim surface to detect the air tightness. By controlling the fan 15 and the heating wire 16 to work, the rim surface can be dried conveniently to avoid water stains on the rim surface that affect the later preservation of the rim. The operation is convenient and can quickly position and clamp rims of different sizes, making it convenient to perform air tightness detection operations. It can effectively avoid immersing the entire rim in the water tank 12, and can dry the rim surface after detection, effectively improving the detection efficiency.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0059] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A steel wheel rim air tightness tester, comprising a bracket (1) and a test mechanism, characterized in that: The detection mechanism includes: A fixing frame (2) is fixedly mounted on the inner side of the top end of the bracket (1); a vertical first fixing plate (3) is mounted on the fixing frame (2); a rotating disk (4) is mounted on the first fixing plate (3); the rotating disk (4) is rotatably connected to the first fixing plate (3); a sealing gasket (5) is mounted on one side of the rotating disk (4); a positioning assembly (7) is provided on one side of the first fixing plate (3) for supporting and positioning wheel rims of different sizes; a second fixing plate (6) is provided on the side of the positioning assembly (7) away from the first fixing plate (3) The first fixing plate (3) is parallel to the second fixing plate (6), the second fixing plate (6) is also mounted with a rotating disk (4) and a sealing gasket (5), the fixing frame (2) is also mounted with a telescopic assembly (8), the telescopic assembly (8) is connected to the second fixing plate (6), and is used to drive the second fixing plate (6) to move its position and adjust the distance between the first fixing plate (3) and the second fixing plate (6), the first fixing plate (3) is also mounted with an air injection assembly (10), and is used to perform an air injection operation on the inner side of the rim after the rim is sealed; A rotating assembly (9) is installed between the first fixed plate (3) and the second fixed plate (6), and is used to drive the rotating disks (4) on the first fixed plate (3) and the second fixed plate (6) to rotate simultaneously; a first telescopic member (11) is installed at the bottom end of the inner side of the bracket (1); a water tank (12) is fixedly installed at the output end of the first telescopic member (11), and is used to drive the water tank (12) to move in a vertical direction; and a control console (13) is also provided on the inner side of the bracket (1); The positioning component (7) comprises: A limit frame (71) is fixedly mounted on the top of the first fixed plate (3); the limit frame (71) is fixedly connected to the fixed frame (2); a movable plate (72) is provided inside the limit frame (71); the movable plate (72) is slidably connected to the limit frame (71); the movable plate (72) is horizontal; a baffle (73) is fixedly mounted on one end of the movable plate (72) away from the limit frame (71); a second telescopic member (74) is fixedly mounted on the top of the limit frame (71); an output end of the second telescopic member (74) is fixedly connected to the baffle (73); a slide rail (73) is fixedly mounted on the bottom side of one end of the movable plate (72) away from the limit frame (71); 75), a slider (76) is provided on the slide rail (75), a movable frame (77) is fixedly installed at the bottom end of the slider (76), a first driving member (78) is fixedly installed in the middle of the slide rail (75), a first driving rod (79) is fixedly installed at the output end of the first driving member (78), the first driving rod (79) passes through the slider (76) and is threadedly connected to the slider (76), and a clamping assembly (70) is fixedly installed on the side of the bottom end of the movable frame (77); the slider (76), the movable frame (77) and the clamping assembly (70) are each provided with two, and are divided into two groups and symmetrically distributed on the bottom side of the slide rail (75) for positioning and clamping the wheel rim; The clamping assembly (70) comprises: A clamping frame (701) is fixedly mounted on one side of the bottom end of the movable frame (77); a horizontal short rod (702) is fixedly mounted on the inner side of the clamping frame (701); a movable block (703) is also arranged on the inner side of the clamping frame (701); a limiting hole (704) is arranged on the movable block (703); the short rod (702) passes through the limiting hole (704); a supporting frame (705) is fixedly mounted on the movable block (703); the supporting frame (705) is away from the movable frame A clamping roller (706) is installed at one end of the block (703), and the clamping roller (706) is rotatably connected to the support frame (705). The support frame (705) is inclined. The support frame (705) and the clamping roller (706) are each provided with two and symmetrically distributed on the moving block (703). An elastic member (707) is sleeved on the outer side of the short rod (702). One end of the elastic member (707) is connected to the moving block (703), and the other end is connected to the inner wall of the clamping frame (701).

2. The steel wheel rim air tightness testing machine according to claim 1, characterized in that: The telescopic assembly (8) comprises: A positioning hole (81) is located on the fixing frame (2) and is horizontal. A positioning rod (82) is provided inside the positioning hole (81). The positioning rod (82) passes through the positioning hole (81) and is slidably connected to the positioning hole (81). An adjusting frame (83) is fixedly installed at one end of the positioning rod (82) away from the fixing frame (2). The bottom end of the adjusting frame (83) is fixedly connected to the second fixing plate (6). A third telescopic member (84) is fixedly installed at the top end of the fixing frame (2). The output end of the third telescopic member (84) is fixedly connected to the adjusting frame (83) and is used to drive the adjusting frame (83) to drive the second fixing plate (6) to move along the positioning hole (81).

3. The steel wheel rim air tightness testing machine according to claim 2, characterized in that: The gas injection assembly (10) comprises: An air injection nozzle (101) is mounted on a rotating disk (4) of a first fixed plate (3); the air injection nozzle (101) is located at the center of the rotating disk (4); an air compressor (102) is fixedly mounted on the fixed frame (2); a connecting pipe (103) is fixedly mounted on the output end of the air compressor (102); an end of the connecting pipe (103) away from the air compressor (102) is connected to the air injection nozzle (101); the connecting pipe (103) passes through the rotating disk (4) and is rotatably connected to the rotating disk (4).

4. The steel wheel rim air tightness testing machine according to claim 3, characterized in that: The rotating assembly (9) comprises: A first gear ring (91) is fixedly mounted on a rotating disk (4) of a first fixed plate (3); a motor frame (92) is also mounted on the inner side of the fixed frame (2); a second driving member (93) is fixedly mounted on the motor frame (92); a second driving rod (94) is fixedly mounted on the output end of the second driving member (93); a first driving tooth (95) is mounted on the outer side of the second driving rod (94); the first driving tooth (95) is meshingly connected with the first gear ring (91); a second gear ring (96) is fixedly mounted on the rotating disk (4) of the second fixed plate (6); a rotating cylinder (97) is mounted on the second fixed plate (6); the rotating cylinder (97) 97) passes through the second fixed plate (6) and is rotatably connected to the second fixed plate (6); a second driving tooth (98) is fixedly installed on the outer side of the rotating cylinder (97); the second driving tooth (98) is meshingly connected with the second gear ring (96); the second driving rod (94) passes through the rotating cylinder (97); the rotating cylinder (97) is slidably connected with the second driving rod (94); a protrusion (99) is provided on the inner side of the rotating cylinder (97); a connecting groove (90) is provided on the outer wall of the second driving rod (94); the connecting groove (90) is slidably connected with the protrusion (99) so as to enable the second driving rod (94) to drive the rotating cylinder (97) to rotate.

5. The steel wheel rim air tightness testing machine according to claim 1, characterized in that: A heating frame (14) is also fixedly mounted on the movable frame (77). The heating frame (14) is located at the top of the clamping assembly (70). An air inlet is provided at the top of the heating frame (14). The bottom side of the heating frame (14) is inclined and provided with an air outlet. A fan (15) is installed on the inner side of the heating frame (14). A heating wire (16) is installed at the air outlet of the heating frame (14) for heating the air discharged from the heating frame (14).

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