Hub flange machining clamp

Abstract

The utility model discloses a hub flange machining clamp, which belongs to the technical field of clamp devices, and comprises a mounting plate, the top surface of the mounting plate is fixedly connected with a protective cover, the mounting plate is provided with three first clamping components for limiting a hub flange, each first clamping component comprises a push plate, and the push plate is provided with a push rod. The push plate is slidably connected to the top surface of the mounting plate; three pressing rods are arranged on the protective cover and are circumferentially distributed along the axis of the protective cover, and each pressing rod is provided with a second clamping assembly for clamping the hub flange; the first clamping assembly and the pressing rod are driven by a motor, and the motor is fixedly connected with the top wall of the protection cover. The device has the beneficial effects that by arranging the pressing head, the pressing block and the push plate, the upper surface of the hub flange is limited while the inner wall and the outer wall of the hub flange are limited, so that the hub flange cannot move in the vertical direction and the horizontal direction, the hub flange is further prevented from moving, and the percent of pass of products is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamp devices and relates to a hub flange processing clamp. Background Art

[0002] The wheel hub is a cylindrical metal part with the inner profile of the tire supporting the tire and the center mounted on the shaft. It is also called a wheel rim, steel rim, wheel, tire bell, and wheel hub. There are many types of wheels according to the diameter, width, forming method, and material. Flange is abbreviated as flange, which usually refers to a metal body with several holes opened around it for fixing and connecting other things. It is widely used in machinery.

[0003] In the Chinese patent with the announcement number CN219404042U, a processing fixture for automobile hub flange is disclosed, and its technical scheme is as follows: it includes a bottom plate, the top of the bottom plate is fixedly connected to a support plate, and a clamping assembly is arranged at the top of the support plate. The clamping assembly includes a motor, the motor is fixedly connected to one side of the support plate, the output end of the motor is fixedly connected to a first screw, the center of the first screw is fixedly connected to a first gear, the outer wall of the first gear is meshed with a transmission belt, the top of the inner wall of the transmission belt is meshed with a second gear, the bottom of the second gear is meshed with a third gear, the size of the third gear is smaller than the second gear, the center of the third gear is fixedly connected to a second screw, the second screw and the first screw are both bidirectional screws, the outer wall of the first screw is slidably connected to a first nut, the top of the first nut is fixedly connected to a clamping plate, the clamping plate is in an arc shape, the outer wall of the second screw is slidably connected to a second nut, the top of the second nut is fixedly connected to a connecting rod, one side of the connecting rod is fixedly connected to a push plate, and the push plate extends out of the support plate away from the connecting rod.

[0004] However, the following disadvantages still exist: the clamping assembly of the device can only clamp and fix the inner and outer walls of the hub flange through the push plate and the clamping plate, and there is no clamping and fixing in the vertical direction of the hub flange, so the hub flange is still at risk of moving, thereby affecting processing.

[0005] In order to solve the above problems, the utility model proposes a hub flange processing fixture. Utility Model Content

[0006] In order to solve the problems existing in the background technology, the utility model proposes a hub flange processing fixture.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a wheel hub flange processing fixture, including a mounting plate, a protective cover fixedly connected to the top surface of the mounting plate, the protective cover is circular and coaxially arranged with the mounting plate; a first clamping assembly for limiting and fixing the outer wall of the wheel hub flange is arranged on the mounting plate, the first clamping assembly has three, each first clamping assembly includes a push plate, and the push plate is slidably connected to the top surface of the mounting plate; three pressure rods are arranged on the protective cover, each pressure rod is provided with a second clamping assembly for clamping and fixing the inner wall and upper surface of the wheel hub flange; the first clamping assembly and the pressure rod are both driven by a motor, the motor is located in the protective cover and fixedly connected to the top wall of the protective cover.

[0008] Furthermore, the three first clamping assemblies are circumferentially distributed around the protective cover, and the top surface of the mounting plate is provided with three slide grooves, which are circumferentially distributed. The lower end of the push plate of each first clamping assembly passes through the corresponding slide groove and extends under the mounting plate, and the push plate is slidably connected to the slide groove; each first clamping assembly also includes a fixed plate, a screw and a second bevel gear, and the fixed plate has two, both of which are fixedly connected to the bottom surface of the mounting plate, and one is located at the edge of the mounting plate, and the other is located at the position of the mounting plate close to the center of the circle, the screw is rotatably connected between the two fixed plates, and the screw is threadedly connected to the push plate, and the end of the screw close to the center of the circle passes through the fixed plate, and the second bevel gear is fixedly sleeved at the end of the screw that extends out. The output shaft of the motor passes downward through the mounting plate and is fixedly sleeved with a first bevel gear, and the output shaft of the motor is rotatably connected to the mounting plate, and the first bevel gear is meshed with the second bevel gears of the three first clamping assemblies.

[0009] Furthermore, a shock-absorbing pad is fixedly connected to the inner side of each push plate.

[0010] Furthermore, a first gear is fixedly sleeved on the output shaft of the motor, the first gear is rotatably connected to the top surface of the mounting plate, the top surface of the mounting plate is rotatably connected to a second gear, the second gear meshes with the first gear, the top surface of the mounting plate is also rotatably connected to a gear ring, the gear ring is coaxially arranged with the mounting plate, and the gear ring meshes with the second gear, the upper end of the gear ring is fixedly connected to a ring, and a plurality of teeth are fixedly connected to the inner wall of the ring. A third gear is fixedly sleeved on the pressure rod away from the second gear, and the third gear meshes with the teeth. A pulley is fixedly sleeved on each pressure rod, and a synchronous belt is sleeved between the three pulleys.

[0011] Furthermore, three pressure rods are distributed circumferentially on the protective cover, the pressure rods pass downward through the protective cover and are rotatably connected to the protective cover, and the lower ends of the pressure rods are rotatably connected to the top surface of the mounting plate; each second clamping assembly includes a pressure block and a pressure head, the pressure rod is L-shaped, the pressure block is fixedly connected to the upper end of the pressure rod, an inclined surface is provided on the bottom surface of the pressure block at one end away from the pressure rod, and the pressure head is fixedly connected to the bottom surface of the pressure block close to one end of the pressure rod.

[0012] Furthermore, the upper end of the pressure rod is U-shaped, a second channel is opened inside the pressure rod, and a first channel is opened on the U-shaped part of the pressure rod, one end of the first channel is connected with the second channel, and the other end of the first channel passes through the pressure rod; a guide rod is sealingly and slidably connected in the first channel, the lower end of the guide rod extends out of the first channel and is fixedly connected to the pressure block, a spring is sleeved on the outer circumferential surface of the guide rod, the lower end of the spring is fixedly connected to the pressure block, and the upper end is fixedly connected to the pressure rod; a connecting pipe is fixedly connected to the outer circumferential surface of the pressure rod, the connecting pipe faces the direction of the pressure block and connects the second channel with the outside world, the pressure head is sealingly and slidably connected in the connecting pipe, and one end extends out of the connecting pipe.

[0013] Compared with the prior art, the utility model has the following beneficial effects: by setting a pressure head, a pressure block and a push plate, while limiting the inner wall and the outer wall of the hub flange, the upper surface of the hub flange is also limited, so that the hub flange cannot move in the vertical direction and the horizontal direction, thereby further avoiding the movement of the hub flange and improving the qualified rate of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the initial state of Example 1 of the present utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the working state of Example 1 of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the protective cover in Example 1 of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the bottom of the mounting plate of Example 1 of the utility model;

[0018] Figure 5 It is a schematic diagram of the structure of the gear ring, ring ring and teeth in the utility model;

[0019] Figure 6 It is a schematic diagram of the overall structure of Example 2 of the utility model;

[0020] Figure 7 It is a cross-sectional view of the pressure rod and the connecting piece of Example 2 of the present utility model.

[0021] In the figure: 1. mounting plate; 2. push plate; 3. fixing plate; 4. protective cover; 5. slide groove; 6. pressure rod; 7. pressure head; 8. pressure block; 9. shock-absorbing pad; 10. motor; 11. first gear; 12. gear ring; 13. first bevel gear; 14. second gear; 15. synchronous belt; 16. pulley; 17. third gear; 18. second bevel gear; 19. first channel; 20. second channel; 21. teeth; 22. spring; 23. guide rod; 24. screw rod; 25. ring; 26. connecting pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] like Figure 1-Figure 5 As shown, the technical solution adopted by the utility model is as follows: a hub flange processing fixture includes a mounting plate 1, the top surface of the mounting plate 1 is fixedly connected with a protective cover 4, the protective cover 4 is circular and is coaxially arranged with the mounting plate 1.

[0025] The mounting plate 1 is provided with a first clamping assembly for clamping and fixing the outer wall of the hub flange. There are three first clamping assemblies, which are circumferentially distributed around the protective cover 4. Each first clamping assembly includes a push plate 2, a fixing plate 3, a screw 24 and a second bevel gear 18. The top surface of the mounting plate 1 is provided with three slide grooves 5, which are circumferentially distributed. The slide grooves 5 correspond to the first clamping assemblies one by one. The lower end of the push plate 2 of each first clamping assembly passes through the corresponding slide groove 5 and extends under the mounting plate 1. The push plate 2 is slidably connected to the slide groove 5. A shock-absorbing pad 9 is fixedly connected to the inner side of the push plate 2. The shock-absorbing pad 9 contacts the hub flange, thereby reducing damage to the hub flange. There are two fixing plates 3, both of which are fixedly connected to the bottom surface of the mounting plate 1, and one of them is located at the edge of the mounting plate 1, and the other is located near the center of the mounting plate 1. The screw rod 24 is threadedly connected to the lower end of the push plate 2, and the screw rod 24 is rotatably connected between the two fixing plates 3. One end of the screw rod 24 near the center of the circle passes through the fixing plate 3, and the second bevel gear 18 is fixedly sleeved on the protruding end of the screw rod 24.

[0026] The three first clamping assemblies are all driven by a motor 10, which is located inside the protective cover 4 and fixedly connected to the top wall of the protective cover 4. The output shaft of the motor 10 passes downward through the mounting plate 1 and is fixedly sleeved with a first bevel gear 13. The output shaft of the motor 10 is rotatably connected to the mounting plate 1, and the first bevel gear 13 is meshed with the three second bevel gears 18.

[0027] A first gear 11 is fixedly sleeved on the output shaft of the motor 10, and the first gear 11 is rotatably connected to the top surface of the mounting plate 1. The top surface of the mounting plate 1 is also rotatably connected to a second gear 14, and the second gear 14 meshes with the first gear 11. A gear ring 12 is rotatably connected to the top surface of the mounting plate 1, and the gear ring 12 is coaxially arranged with the mounting plate 1, and the gear ring 12 is located in the protective cover 4 and meshes with the second gear 14. A ring 25 is fixedly connected to the upper end of the gear ring 12, and a plurality of teeth 21 are fixedly connected to the inner wall of the ring 25, and the plurality of teeth 21 are closely spaced.

[0028] Three pressure rods 6 are arranged on the protective cover 4, and the three pressure rods 6 are circumferentially distributed on the protective cover 4. Each pressure rod 6 is provided with a second clamping assembly for limiting and fixing the inner wall and upper surface of the hub flange, and each second clamping assembly includes a pressure head 7 and a pressure block 8. The pressure rod 6 is rotatably connected to the protective cover 4, and the lower end of the pressure rod 6 passes through the protective cover 4 and is rotatably connected to the top surface of the mounting plate 1. A third gear 17 is fixedly sleeved on the pressure rod 6 away from the second gear 14, and the third gear 17 is meshed with a plurality of teeth 21 on the inner wall of the ring 25. A pulley 16 is fixedly sleeved on each pressure rod 6, and a synchronous belt 15 is sleeved between the three pulleys 16. The pressure rod 6 is L-shaped, and the pressure block 8 is fixedly connected to the upper end of the pressure rod 6. The bottom surface of the pressure block 8 away from the pressure rod 6 is provided with an inclined surface, and the pressure head 7 is fixedly connected to the bottom surface of the pressure block 8 close to the pressure rod 6.

[0029] Working principle: When using the device, a person places the hub flange onto the mounting plate 1 so that the protective cover 4 is located in the inner hole of the hub flange.

[0030] Then the personnel starts the motor 10, and the output shaft of the motor 10 drives the first bevel gear 13 to rotate, and the first bevel gear 13 drives the three second bevel gears 18 to rotate, and each second bevel gear 18 drives the corresponding screw rod 24 to rotate, and the three screw rods 24 drive the three push plates 2 to slide in the corresponding slide grooves 5, so that the three push plates 2 are close to the hub flange, and finally the shock-absorbing pads 9 on the push plates 2 are in contact with the outer wall of the hub flange, which plays a role of limiting and fixing, and also avoids damage to the hub flange caused by direct contact of the push plates 2. Finally, the personnel turns off the motor 10.

[0031] When the output shaft of the motor 10 rotates, it also drives the first gear 11 to rotate, the first gear 11 drives the second gear 14 to rotate, the second gear 14 drives the gear ring 12 and the ring 25 to rotate, and the ring 25 drives a plurality of teeth 21 to rotate around the center of the ring 25. After the push plate 2 fixes the outer wall of the hub flange, the teeth 21 rotates exactly one circle.

[0032] When the teeth 21 rotate, they mesh with the third gear 17, thereby driving the third gear 17 to rotate, and the third gear 17 drives the corresponding pressure rod 6 and the pulley 16 to rotate, and the pulley 16 drives the other two pulleys 16 and the pressure rod 6 to rotate through the synchronous belt 15.

[0033] When the three pressure rods 6 rotate, the corresponding pressure heads 7 and pressure blocks 8 are driven to rotate around the rotation axis of the pressure rods 6, so that the pressure heads 7 fit with the inner wall of the hub flange, and the pressure blocks 8 fit with the upper surface of the hub flange. Since the pressure blocks 8 are provided with inclined surfaces, the inclined surfaces cooperate with the hub flange, so that the pressure blocks 8 can be moved above the hub flange. The pressure heads 7 limit the inner wall of the hub flange, and the pressure blocks 8 limit the upper surface of the hub flange.

[0034] After the third gear 17 rotates 180°, the tooth 21 is separated from the third gear 17. Thus, the hub flange is limited, and then the staff processes the hub flange.

[0035] When the processing is completed and the hub flange needs to be removed, the personnel restart the motor 10. The output shaft of the motor 10 rotates in the opposite direction, driving the first bevel gear 13 to rotate, and driving the three second bevel gears 18 to rotate, the three second bevel gears 18 drive the corresponding screw rods 24 to rotate, and the three screw rods 24 drive the corresponding push plates 2 to move away from each other, so that the push plates 2 release the hub flange. Then the personnel turn off the motor 10.

[0036] During the rotation of the output shaft of the motor 10 , the first gear 11 is driven to rotate, the first gear 11 is driven to rotate the second gear 14 , the second gear 14 is driven to rotate the gear ring 12 and the ring 25 , and the ring 25 is driven to rotate a plurality of teeth 21 around the center of the ring 25 .

[0037] When the teeth 21 mesh with the third gear 17 , the teeth 21 drive the third gear 17 to rotate, the third gear 17 drives one of the pressure rods 6 and the pulley 16 to rotate, and the pulley 16 drives the other two pulleys 16 and the pressure rod 6 to rotate through the synchronous belt 15 .

[0038] When the pressure rod 6 rotates, it drives the pressure head 7 and the pressure block 8 to rotate around the rotation axis of the pressure rod 6, so that the pressure head 7 and the pressure block 8 rotate 180 degrees, thereby loosening the hub flange.

[0039] Then the personnel takes out the hub flange on the mounting plate 1 and repeats the above operation to process the next hub flange.

[0040] Example 2

[0041] This embodiment only introduces the structure that is different from the first embodiment.

[0042] like Figure 6-Figure 7As shown, each second clamping assembly includes a pressure rod 6, a second channel 20 is opened inside the pressure rod 6, the upper end of the pressure rod 6 is U-shaped, and a first channel 19 is opened inside the U-shaped part, one end of the first channel 19 is connected to the second channel 20, and the other end of the first channel 19 passes through the pressure rod 6.

[0043] A guide rod 23 is sealed and slidably connected in the first channel 19, the lower end of the guide rod 23 extends out of the first channel 19 and is fixedly connected to the pressure block 8, a spring 22 is sleeved on the outer circumference of the guide rod 23, the lower end of the spring 22 is fixedly connected to the pressure block 8, and the upper end is fixedly connected to the pressure rod 6. A connecting pipe 26 is fixedly connected to the outer circumference of the pressure rod 6, the connecting pipe 26 and the U-shaped part at the upper end of the pressure rod 6 are located on the same side, the connecting pipe 26 connects the second channel 20 with the outside, the pressure head 7 is sealed and slidably connected in the connecting pipe 26, and one end extends out of the connecting pipe 26.

[0044] Working principle: When the pressure rod 6 rotates, the extended end of the pressure head 7 will first fit with the inner wall of the hub flange. When the pressure rod 6 continues to rotate, the hub flange will push the pressure head 7 into the connecting pipe 26. Since the gas inside the first channel 19 and the second channel 20 is constant, when the pressure head 7 moves into the connecting pipe 26, the gas pressure inside the first channel 19 and the second channel 20 will increase, so that the lower end of the guide rod 23 extends downward, and the guide rod 23 pushes the pressure block 8 to move downward, so that it slowly fits with the upper surface of the hub flange. At the same time, the spring 22 is extended.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hub flange processing fixture, characterized in that: The invention comprises a mounting plate (1), the top surface of the mounting plate (1) is fixedly connected with a protective cover (4), the protective cover (4) is circular and is coaxially arranged with the mounting plate (1); a first clamping assembly for limiting and fixing the outer wall of the hub flange is arranged on the mounting plate (1), the first clamping assembly has three, each of the first clamping assemblies comprises a push plate (2), the push plate (2) is slidably connected to the top surface of the mounting plate (1); three pressure rods (6) are arranged on the protective cover (4), the three pressure rods (6) are distributed along the circumference of the axis of the protective cover (4), each of the pressure rods (6) is provided with a second clamping assembly for clamping and fixing the inner wall and the upper surface of the hub flange, the first clamping assembly and the pressure rod (6) are both driven by a motor (10), the motor (10) is located in the protective cover (4) and is fixedly connected to the top wall of the protective cover (4).

2. A hub flange processing fixture according to claim 1, characterized in that: The three first clamping components are circumferentially distributed around the protective cover (4); the top surface of the mounting plate (1) is provided with three slide grooves (5), which are circumferentially distributed; the lower end of the push plate (2) of each first clamping component passes through the corresponding slide groove (5) and extends under the mounting plate (1); the push plate (2) is slidably connected to the slide groove (5); each first clamping component also includes a fixed plate (3), a screw rod (24) and a second bevel gear (18); the fixed plate (3) has two, both of which are fixedly connected to the bottom surface of the mounting plate (1), and one is located at the edge of the mounting plate (1) and the other is located at the bottom of the mounting plate (1). At a position of the mounting plate (1) close to the center of the circle, a screw rod (24) is rotatably connected between the two fixed plates (3), and the screw rod (24) is threadedly connected to the push plate (2), one end of the screw rod (24) close to the center of the circle passes through the fixed plate (3), and the second bevel gear (18) is fixedly sleeved on the protruding end of the screw rod (24); the output shaft of the motor (10) passes downward through the mounting plate (1) and is fixedly sleeved with a first bevel gear (13), the output shaft of the motor (10) is rotatably connected to the mounting plate (1), and the first bevel gear (13) is meshed with the second bevel gears (18) of the three first clamping assemblies.

3. A hub flange processing fixture according to claim 2, characterized in that: A shock-absorbing pad (9) is fixedly connected to the inner side of each push plate (2).

4. The hub flange processing fixture according to claim 1, characterized in that: A first gear (11) is fixedly sleeved on the output shaft of the motor (10), the first gear (11) is rotatably connected to the top surface of the mounting plate (1), the top surface of the mounting plate (1) is rotatably connected to a second gear (14), the second gear (14) meshes with the first gear (11), the top surface of the mounting plate (1) is also rotatably connected to a gear ring (12), the gear ring (12) is coaxially arranged with the mounting plate (1), the gear ring (12) meshes with the second gear (14), the upper end of the gear ring (12) is fixedly connected to a ring (25), the inner wall of the ring (25) is fixedly connected to a plurality of teeth (21); a third gear (17) is fixedly sleeved on a pressure rod (6) away from the second gear (14), the third gear (17) meshes with the teeth (21), each pressure rod (6) is fixedly sleeved with a pulley (16), and a synchronous belt (15) is sleeved between the three pulleys (16).

5. The hub flange processing fixture according to claim 4, characterized in that: The pressure rod (6) passes downward through the protective cover (4) and is rotatably connected to the protective cover (4), and the lower end of the pressure rod (6) is rotatably connected to the top surface of the mounting plate (1); each second clamping assembly comprises a pressure block (8) and a pressure head (7), the pressure rod (6) is L-shaped, the pressure block (8) is fixedly connected to the upper end of the pressure rod (6), an inclined surface is provided on the bottom surface of the end of the pressure block (8) away from the pressure rod (6), and the pressure head (7) is fixedly connected to the bottom surface of the end of the pressure block (8) close to the pressure rod (6).

6. The hub flange processing fixture according to claim 4, characterized in that: The upper end of the pressure rod (6) is U-shaped, and a second channel (20) is provided inside the pressure rod (6). The U-shaped portion of the pressure rod (6) is provided with a first channel (19), one end of the first channel (19) is connected to the second channel (20), and the other end of the first channel (19) passes through the pressure rod (6); a guide rod (23) is sealingly and slidably connected inside the first channel (19), the lower end of the guide rod (23) extends out of the first channel (19) and is fixedly connected to the pressure block (8), a spring (22) is sleeved on the outer circumferential surface of the guide rod (23), the lower end of the spring (22) is fixedly connected to the pressure block (8), and the upper end is fixedly connected to the pressure rod (6); a connecting pipe (26) is fixedly connected to the outer circumferential surface of the pressure rod (6), the connecting pipe (26) faces the direction of the pressure block (8) and connects the second channel (20) with the outside, and the pressure head (7) is sealingly and slidably connected in the connecting pipe (26), and one end extends out of the connecting pipe (26).

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