Automatic screw driving equipment for hub assembly

Abstract

The utility model relates to the technical field of automatic assembly, and discloses an automatic screw driving device for hub assembly, which comprises a base, the upper surface of the base is fixedly connected with a bracket, the side wall of the base is fixedly connected with a supporting rod, the side wall of the supporting rod is provided with a motor I, and the output end of the motor I is fixedly connected with a fixing sleeve. A fixing sleeve is arranged on the lower surface of the base, a tightening head is arranged in the fixing sleeve, a fixing assembly is arranged on the lower surface of the base, a dismounting assembly is arranged in the fixing sleeve, the fixing assembly comprises a second mounting sleeve, the upper surface of the second mounting sleeve is fixedly connected to the lower surface of the base, and a bottom plate is fixedly connected to the interior of the second mounting sleeve; and a motor II is fixedly connected to the lower surface of the mounting sleeve II. According to the hub fixing device, the second motor is started to enable the rotating shaft to drive the rotating block to rotate, so that the rotating plate is pulled to rotate, the fixing plate drives the clamping block to move, the hub fixing effect is achieved, and the working efficiency of the hub fixing device is improved through the structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic assembly technical field especially relates to a wheel hub assembly is with automatic screwing equipment. BACKGROUND

[0002] In modern manufacturing industry, wheel hub assembly is the key link in the production process of many fields such as automobile and engineering machinery. With the continuous advancement of automation production, wheel hub assembly automatic screwing equipment emerges as the times require, which aims at improving the efficiency, precision and stability of wheel hub assembly, reducing the error and labor intensity caused by manual operation, and meeting the demand of mass production.

[0003] Traditional wheel hub assembly screwing equipment mostly adopts cylinder driving mode to realize screw tightening operation. For example, a common structure is to push the screwdriver bit by cylinder to make it move along the straight line direction, thereby screwing the screw into the mounting hole of the wheel hub. In the positioning aspect, a simple clamp is generally used to fix the position of the wheel hub to prevent it from moving during screwing. Its working principle is to place the wheel hub on the clamp first, then put the screw at the mounting hole position by manual or mechanical arm, and then start the cylinder to drive the screwdriver bit to rotate quickly and move downward to complete the screw tightening operation.

[0004] Traditional wheel hub assembly screwing equipment needs to replace different clamps when facing different sizes and shapes of wheel hubs, which reduces production efficiency, and at the same time, due to the replacement and adjustment of the clamp, it is easy to cause inaccurate positioning of the wheel hub, thereby affecting the quality of screw tightening. Therefore, a wheel hub assembly automatic screwing equipment is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a wheel hub assembly automatic screwing equipment, which aims at improving the problem that different clamps need to be replaced when facing different sizes and shapes of wheel hubs in the prior art, which reduces production efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A wheel hub assembly automatic screwing equipment, comprising a base, a support is fixedly connected to the upper surface of the base, a supporting rod is fixedly connected to the side wall of the base, a motor one is arranged on the side wall of the supporting rod, a fixed sleeve is fixedly connected to the output end of the motor one, a tightening head is arranged in the fixed sleeve, a fixing assembly is arranged on the lower surface of the base, and a dismounting assembly is arranged in the fixed sleeve.

[0008] The fixed assembly comprises a mounting sleeve two, the upper surface of the mounting sleeve two is fixedly connected to the lower surface of the base, a bottom plate is fixedly connected inside the mounting sleeve two, a motor two is fixedly connected to the lower surface of the mounting sleeve two, a rotating shaft is fixedly connected to the output end of the motor two, a rotating block is fixedly connected to the side wall of the rotating shaft, a fixed strip is fixedly connected inside the mounting sleeve two, a sliding block is slidably connected to the side wall of the fixed strip, a fixed plate is fixedly connected to the upper surface of the sliding block, a clamping block is fixedly connected to the upper surface of the fixed plate, a rotating plate is rotatably connected to the side wall of the rotating block, one end of the rotating plate is rotatably connected to the lower surface of the fixed plate, and the clamping block is slidably connected to the inside of the base;

[0009] As a further description of the above technical solution:

[0010] The disassembly assembly comprises a sliding sleeve two, the sliding sleeve two is slidably connected to the side wall of the fixed sleeve, and the tightening head is slidably connected to the inside of the fixed sleeve.

[0011] As a further description of the above technical solution:

[0012] The lower surface of the bracket is fixedly connected with a hydraulic rod, the output end of the hydraulic rod is fixedly connected with a sliding sleeve one, the lower surface of the bracket is fixedly connected with a guide rod, and the inside of the sliding sleeve one is slidably connected to the side wall of the guide rod.

[0013] As a further description of the above technical solution:

[0014] The lower surface of the sliding sleeve is fixedly connected with a connecting rod, the lower surface of the connecting rod is fixedly connected with a fixed frame, the inside of the fixed frame is slidably connected to the side wall of the guide rod, the upper surface of the fixed frame is fixedly connected with a mounting sleeve one, and the side wall of the motor one is fixedly connected to the inside of the mounting sleeve one.

[0015] As a further description of the above technical solution:

[0016] The side wall of the fixed sleeve is fixedly connected with a fixed ring one and a fixed ring two.

[0017] As a further description of the above technical solution:

[0018] The side wall of the sliding sleeve two is attached to the side wall of the fixed ring one, and the side wall of the fixed sleeve is sleeved with a spring.

[0019] As a further description of the above technical solution:

[0020] One end of the spring is fixedly connected to the inside of the sliding sleeve two, and the other end of the spring is fixedly connected to the side wall of the fixed ring two.

[0021] As a further description of the above technical solution:

[0022] The fixed sleeve is internally provided with a fixed ball, and the side wall of the fixed ball is slidingly connected inside the mounting hole.

[0023] The utility model has the advantages of the following beneficial effects:

[0024] 1、 the utility model discloses, through starting motor no. 2 makes the rotation of the rotation block with the rotation of the shaft, thereby pull the rotation of the rotating plate, make the fixed plate drive the movement of the clamping block, reach the fixed effect of wheel hub, solve the automatic screwing equipment of part wheel hub assembly when facing the wheel hub of different size and shape, need to replace different clamps, reduced production efficiency, simultaneously because of the replacement and adjustment of the clamp, easy to cause wheel hub positioning inaccuracy, and then influence the quality of screw tightening problem, improve the working efficiency of equipment through the above structure.

[0025] 2、 the utility model discloses, through the upward push of sliding sleeve no. 2, make spring extrusion shrink, thereby let fixed ball lose extrusion, through the downward push of the tightening head, make fixed ball slip out the inside of mounting hole, thereby reach the effect of quick dismantling and replacement of tightening head. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a kind of wheel hub assembly automatic screwing equipment's stereogram schematic diagram that the utility model proposes;

[0027] Figure 2 It is the structural schematic diagram of the fixing frame of the wheel hub assembly automatic screwing equipment that the utility model proposes;

[0028] Figure 3 It is the structural schematic diagram of the bottom plate of the wheel hub assembly automatic screwing equipment that the utility model proposes;

[0029] Figure 4 It is the structural schematic diagram of the fixed sleeve of the wheel hub assembly automatic screwing equipment that the utility model proposes;

[0030] Figure 5 It is Figure 4 The enlarged view of A in Fig.

[0031] LEGEND:

[0032] 1, base; 2, support; 3, support rod; 4, hydraulic rod; 5, guide rod; 6, sliding sleeve I; 7, connecting rod; 8, fixed frame; 9, mounting sleeve I; 10, motor I; 11, fixed sleeve; 12, mounting sleeve II; 13, bottom plate; 14, motor II; 15, rotating shaft; 16, rotating block; 17, sliding block; 18, fixed plate; 19, clamping block; 20, rotating plate; 21, tightening head; 22, mounting hole; 23, sliding sleeve II; 24, fixed ring I; 25, fixed ring II; 26, spring; 27, fixed ball; 28, fixed strip. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] Reference Figures 1-3The utility model provides an embodiment: a kind of automatic screwing equipment for wheel hub assembly, including base 1, base 1 is as the basis supporting structure of whole equipment, and provide stable mounting platform for other components, its upper surface is fixedly connected with support 2, support 2 is used to bear and fix the component relevant to screw tightening action, make it be at suitable working height and position. Base 1 side wall is fixedly connected with support rod 3, support rod 3 plays the role of auxiliary support and reinforcement, enhances the stability of equipment overall structure, support rod 3 side wall is provided with motor one 10, motor one 10 is the power source of driving screwing head 21 rotation, its output end is fixedly connected with fixed sleeve 11, fixed sleeve 11 is used to install and fix screwing head 21, and can stably transmit the power of motor one 10 to screwing head 21, so that screwing head 21 obtains enough torque to complete the screwing operation of screw. Fixed sleeve 11 is provided with screwing head 21 inside, screwing head 21 directly acts on screw, and screw is rotated into corresponding screw hole of wheel hub by rotation, realizes the screw assembly of wheel hub. The lower surface of base 1 is provided with fixed assembly, and fixed assembly is used to firmly fix wheel hub during screw tightening process, to prevent wheel hub from displacement or wobble, and fixed assembly includes mounting sleeve two 12, the upper surface of mounting sleeve two 12 is fixedly connected to the lower surface of base 1, mounting sleeve two 12 is fixedly connected with bottom plate 13 inside, the lower surface of mounting sleeve two 12 is fixedly connected with motor two 14, motor two 14 is the power source of fixed assembly, and output end is fixedly connected with rotating shaft 15, the side wall of rotating shaft 15 is fixedly connected with rotating block 16, mounting sleeve two 12 is fixedly connected with fixed strip 28 inside, the side wall of fixed strip 28 is slidably connected with sliding block 17, sliding block 17 can stably slide along fixed strip 28, the upper surface of sliding block 17 is fixedly connected with fixed plate 18, the upper surface of fixed plate 18 is fixedly connected with clamping block 19, clamping block 19 directly contacts with wheel hub, and clamping and loosening of wheel hub are realized by opening and closing action. The side wall of rotating block 16 is rotatably connected with rotating plate 20, one end of rotating plate 20 is rotatably connected to the lower surface of fixed plate 18, when rotating block 16 rotates, rotating plate 20 can be pulled to rotate, and then fixed plate 18 is driven to move, so that clamping block 19 realizes clamping or loosening action to wheel hub, and the side wall of clamping block 19 is slidably connected inside base 1, to ensure the stability and accuracy of clamping block 19 during movement. The lower surface of support 2 is fixedly connected with hydraulic rod 4, hydraulic rod 4 can provide accurate straight-line driving force, and output end is fixedly connected with sliding sleeve one 6, sliding sleeve one 6 can be driven to move up and down by the telescopic movement of hydraulic rod 4. The lower surface of support 2 is fixedly connected with guide rod 5, guide rod 5 provides accurate guidance for the up-and-down movement of sliding sleeve one 6, the lower surface of sliding sleeve one 6 is fixedly connected with connecting rod 7, connecting rod 7 plays the role of connection and force transmission, and the movement of sliding sleeve one 6 is transmitted to fixed frame 8.The lower surface of the connecting rod 7 is fixedly connected with a fixing frame 8, the inside of the fixing frame 8 is slidably connected with the side wall of the guide rod 5, and the stability of the movement of the fixing frame 8 is further enhanced; the upper surface of the fixing frame 8 is fixedly connected with a mounting sleeve I 9, the mounting sleeve I 9 is used for mounting a motor I 10, and the side wall of the motor I 10 is fixedly connected with the inside of the mounting sleeve I 9, so that the motor I 10 can be stably mounted on the equipment and moves up and down together with the fixing frame 8.

[0035] When the hub is conveyed to the screwing area, the motor II 14 is started first, and the motor II 14 drives the rotating shaft 15 connected therewith to rotate. During the rotating process, the rotating block 16 fixedly connected with the side wall of the rotating shaft 15 moves in a circular motion. The circular motion of the rotating block 16 is converted into the rotation of the rotating plate 20 through mechanical connection, one end of the rotating plate 20 is rotatably connected with the side wall of the rotating block 16, and the other end is rotatably connected with the lower surface of the fixed plate 18. This connection mode skillfully converts the circular motion of the rotating block 16 into the pulling force on the fixed plate 18. When the rotating plate 20 rotates, the fixed plate 18 is pulled, and the clamping block 19 fixedly connected with the upper surface of the fixed plate 18 is directly in contact with the hub. Under the driving of the fixed plate 18, the sliding block 17 stably slides along the side wall of the fixed strip 28, the fixed strip 28 provides accurate sliding guide for the sliding block 17, ensures the accuracy of the moving direction of the sliding block 17, and further enables the clamping block 19 to accurately adhere to the hub on both sides for firm clamping. The close clamping of the clamping block 19 can effectively prevent the hub from moving or shaking in the subsequent screwing process, provide a stable basis for accurate screwing of the screw, and improve the screwing precision and quality. Then the hydraulic rod 4 is started, and the hydraulic rod 4 can accurately push the sliding sleeve I 6 to move downward according to the instruction of the control system. The sliding sleeve I 6 is fixedly connected with the output end of the hydraulic rod 4, and under the pushing of the hydraulic rod 4, it stably slides downward along the side wall of the guide rod 5. The guide rod 5 plays a key guiding role here, which ensures the linearity and stability of the sliding sleeve I 6 during the downward movement, and avoids the position deviation of the tightening head 21 due to deviation. The connecting rod 7 fixedly connected with the lower surface of the sliding sleeve I 6 transmits the movement of the sliding sleeve I 6 to the fixing frame 8, drives the fixing frame 8 to move downward, and enables the tightening head 21 mounted on the fixing frame 8 to accurately adhere to the screw previously placed on the hub. During this process, the close cooperation between various connecting components ensures that the tightening head 21 can be accurately positioned to the screw position, and fully prepares for the subsequent tightening work. Then the motor I 10 is started, and the motor I 10 can drive the fixed sleeve 11 and the internal tightening head 21 connected therewith to rotate rapidly. The tightening head 21 gradually rotates the screw into the corresponding screw hole of the hub through the torque generated by high-speed rotation, and tightens the screw.

[0036] Referring to Figures 4-5The disassembling assembly comprises a sliding sleeve 23, which is slidingly connected to the side wall of the fixed sleeve 11. The sliding sleeve 23 provides a slidable external structural frame for the entire disassembling operation. The side wall of the tightening head 21 is slidingly connected to the inside of the fixed sleeve 11. This sliding connection allows the tightening head 21 to maintain a relatively stable installation state in the fixed sleeve 11 for normal screw tightening work, and to move along the inner wall of the fixed sleeve 11 when disassembly is required, facilitating cooperation with other disassembly-related components to achieve separation operation. The side wall of the tightening head 21 is provided with a mounting hole 22, which provides an embedded and clamped position for the fixed ball 27. The side wall of the fixed sleeve 11 is fixedly connected with a fixed ring 24 and a fixed ring 25. The fixed ring 24 is mainly used for abutting contact with the side wall of the sliding sleeve 23, and plays a blocking and positioning role in the disassembling process, which can limit the further sliding of the sliding sleeve 23. The side wall of the sliding sleeve 23 abuts the side wall of the fixed ring 24. The side wall of the fixed sleeve 11 is provided with a spring 26, one end of which is fixedly connected to the inside of the sliding sleeve 23, and the other end is fixedly connected to the side wall of the fixed ring 25. The inside of the fixed sleeve 11 is provided with a fixed ball 27, which is slidingly connected to the inside of the mounting hole 22. The fixed ball 27 is a key connecting and locking component between the tightening head 21 and the fixed sleeve 11. Its clamped state in the mounting hole 22 determines whether the tightening head 21 can be stably installed in the fixed sleeve 11.

[0037] When it is necessary to replace the tightening head 21, first push the sliding sleeve two 23 upward, due to the sliding connection structure of the sliding sleeve two 23 and the fixed sleeve 11, so that it can smoothly move linearly to the fixed sleeve 11. At this time, the spring 26 sleeved on the side wall of the fixed sleeve 11 begins to play a role, one end of the spring 26 is fixedly connected inside the sliding sleeve two 23, the other end is fixedly connected to the side wall of the fixed ring two 25. With the upward movement of the sliding sleeve two 23, the spring 26 is extruded and shrunk, and the elastic deformation characteristic of the spring 26 can store energy and provide power basis for the reset of related components in subsequent operation. During the upward movement of the sliding sleeve two 23, it gradually moves away from the fixed ball 27, and the extrusion effect originally applied by the sliding sleeve two 23 to the fixed ball 27 disappears. The side wall of the fixed ball 27 is slidingly connected inside the mounting hole 22 of the tightening head 21, and in the normal state, the fixed ball 27 is pressed by the spring 26 through the sliding sleeve two 23, so as to stably clamped into the mounting hole 22, realizing the axial locking of the tightening head 21, and ensuring that the tightening head 21 will not accidentally fall off during work. When the sliding sleeve two 23 moves away from the fixed ball 27, the fixed ball 27 loses this extrusion force, and the clamping state of the fixed ball 27 in the mounting hole 22 becomes unstable. Then the operation of pulling the tightening head 21 downward is carried out. Since the fixed ball 27 has lost the stable clamping restriction, under the action of the downward pulling force, the fixed ball 27 can slide out along the side wall of the mounting hole 22. At this time, the tightening head 21 is no longer axially constrained by the fixed ball 27, and can be smoothly taken out from the inside of the fixed sleeve 11, thereby completing the disassembly operation of the tightening head 21, so as to replace it, meet the needs of different specifications of screw tightening or equipment maintenance, etc.

[0038] Working principle: when the device is used to screw the hub, the hub is conveyed to the screwing area, first start the motor two 14 to drive the rotating shaft 15 to rotate, drive the rotating block 16 to rotate through the rotating of the rotating shaft 15, so that the rotating plate 20 rotates and pulls the fixed plate 18, the sliding block 17 slides on the side wall of the fixed strip 28, the clamping block 19 is attached to the two sides of the hub for clamping, then start the hydraulic rod 4 to drive the sliding sleeve one 6 to move downward to drive the fixed frame 8 to move downward, the tightening head 21 is attached to the hub screw, then start the motor one 10 to drive the tightening head 21 to rotate, tighten the screw, when it is necessary to replace the tightening head 21, first pull the sliding sleeve two 23 upward, extrude and shrink the spring 26, at this time the sliding sleeve two 23 moves away from the fixed ball 27, so that the fixed ball 27 loses the extrusion, then pull the tightening head 21 downward, so that the fixed ball 27 slides out of the mounting hole 22, thereby taking down the tightening head 21 and replacing it.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. An automatic screwing device for hub assembly, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected with a support (2), the side wall of the base (1) is fixedly connected with a support rod (3), the side wall of the support rod (3) is provided with a motor (10), the output end of the motor (10) is fixedly connected with a fixed sleeve (11), the inside of the fixed sleeve (11) is provided with a tightening head (21), the lower surface of the base (1) is provided with a fixing assembly, and the inside of the fixed sleeve (11) is provided with a dismounting assembly. The fixing assembly comprises a mounting sleeve (12), the upper surface of the mounting sleeve (12) is fixedly connected to the lower surface of the base (1), the inside of the mounting sleeve (12) is fixedly connected with a bottom plate (13), the lower surface of the mounting sleeve (12) is fixedly connected with a motor (14), the output end of the motor (14) is fixedly connected with a rotating shaft (15), the side wall of the rotating shaft (15) is fixedly connected with a rotating block (16), the inside of the mounting sleeve (12) is fixedly connected with a fixed strip (28), the side wall of the fixed strip (28) is slidably connected with a sliding block (17), the upper surface of the sliding block (17) is fixedly connected with a fixed plate (18), the upper surface of the fixed plate (18) is fixedly connected with a clamping block (19), the side wall of the rotating block (16) is rotatably connected with a rotating plate (20), one end of the rotating plate (20) is rotatably connected to the lower surface of the fixed plate (18), and the side wall of the clamping block (19) is slidably connected in the base (1).

2. The automatic screwing device for assembling a wheel hub according to claim 1, characterized in that: The dismounting assembly comprises a sliding sleeve (23), the side wall of the sliding sleeve (23) is slidably connected to the side wall of the fixed sleeve (11), the side wall of the tightening head (21) is slidably connected in the fixed sleeve (11), and the side wall of the tightening head (21) is provided with a mounting hole (22).

3. The automatic screwing device for assembling a wheel hub according to claim 1, characterized in that: The lower surface of the support (2) is fixedly connected with a hydraulic rod (4), the output end of the hydraulic rod (4) is fixedly connected with a sliding sleeve (6), the lower surface of the support (2) is fixedly connected with a guide rod (5), and the inside of the sliding sleeve (6) is slidably connected to the side wall of the guide rod (5).

4. The automatic screwing device for assembling a wheel hub according to claim 3, characterized in that: The lower surface of the sliding sleeve (6) is fixedly connected with a connecting rod (7), the lower surface of the connecting rod (7) is fixedly connected with a fixed frame (8), the inside of the fixed frame (8) is slidably connected to the side wall of the guide rod (5), the upper surface of the fixed frame (8) is fixedly connected with a mounting sleeve (9), and the side wall of the motor (10) is fixedly connected to the inside of the mounting sleeve (9).

5. The automatic screwing device for assembling a wheel hub according to claim 2, characterized in that: The side wall of the fixed sleeve (11) is fixedly connected with a fixed ring (24), and the side wall of the fixed sleeve (11) is fixedly connected with a fixed ring (25).

6. The automatic screwing device for assembling a wheel hub according to claim 5, characterized in that: The side wall of the sliding sleeve (23) is attached to the side wall of the fixed ring (24), and the side wall of the fixed sleeve (11) is sleeved with a spring (26).

7. The automatic screwing device for assembling a wheel hub according to claim 6, characterized in that: One end of the spring (26) is fixedly connected to the inside of the sliding sleeve (23), and the other end of the spring (26) is fixedly connected to the side wall of the fixed ring (25).

8. The automatic screwing device for assembling a wheel hub according to claim 7, characterized in that: The inside of the fixed sleeve (11) is provided with a fixed ball (27), and the side wall of the fixed ball (27) is slidably connected to the inside of the mounting hole (22).

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