Worm shaft nut fastening equipment for assembling automobile parts

Abstract

The utility model discloses worm shaft nut fastening equipment for assembling automobile parts, which comprises a supporting seat and a fixing frame fixedly connected to the top of the supporting seat, and the top of the supporting seat is fixedly connected with a limiting cylinder. According to the worm shaft nut fastening equipment for assembling the automobile parts, a nut is placed in a polygonal cylinder to be attracted to a magnet block, an electric telescopic rod is controlled to extend to drive a motor to move downwards, the motor drives a moving plate to move downwards through a rotating rod, and the rotating rod can drive the nut in the polygonal cylinder to make contact with a worm shaft downwards; and meanwhile, a moving plate can drive an L-shaped plate to move downwards, the L-shaped plate can drive a lower inclined plane block to downwards extrude an upper inclined plane plate and push the upper inclined plane plate to move towards the middle, the upper inclined plane plate can drive arc-shaped clamping plates to move towards the middle through a sliding barrel and a sliding rod, the two arc-shaped clamping plates are made to clamp and fix the worm shaft, the worm shaft can be automatically clamped, and the working efficiency is improved. And the use is more convenient.

Description

A worm shaft nut fastening device for assembling automotive parts Technical Field

[0001] This utility model relates to the field of automotive parts assembly technology, specifically to a worm shaft nut fastening device for automotive parts assembly. Background Technology

[0002] The assembly of automobile products is one of the most important processes in automobile manufacturing. As an essential component of modern automobiles, the worm shaft requires the use of nut fastening equipment to assemble it. However, traditional nut fastening equipment is not effective in fixing the nut and worm, which can easily cause positional deviations during assembly and affect the assembly process.

[0003] Chinese patent CN216138460U relates to a worm gear shaft nut fastening device for assembling automotive parts, comprising an assembly frame body, an assembly device body, a shock-absorbing base, and an assembly fixing cap. The upper end of the assembly fixing cap has a limiting groove, and a through groove communicating with the limiting groove is formed at the upper end of the assembly fixing cap. A magnet is fixedly connected to the upper end of the limiting groove. Fixing bolts penetrating the assembly fixing cap and threadedly connected to the penetrating portion are provided on both sides of the assembly fixing cap. A rubber fixing block is fixedly connected to one end of each fixing bolt. A fixing cylinder is fixedly connected to the upper end of the assembly device body. Assembly grooves are formed on both sides of the fixing cylinder on the surface of the assembly device body. A slider that slides within the assembly groove is provided, which can effectively fix the nut and worm gear, facilitating assembly operations and making it quite practical.

[0004] The aforementioned patent uses two fixing blocks to clamp and fix the worm shaft. However, before installing the nut on the worm shaft, it is necessary to control multiple drive sources in sequence to drive the two fixing blocks to clamp and fix the worm shaft, and then control the motor to drive the nut to rotate. This sequential operation is too cumbersome and increases the number of steps required to tighten the worm shaft nut. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a worm shaft nut fastening device for assembling automotive parts, which solves the problem of the cumbersome process of sequentially controlling multiple drive sources to clamp and fix the worm shaft with two fixing blocks, and then controlling the motor to drive the nut to rotate.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a worm gear shaft nut fastening device for assembling automotive parts, comprising a support base and a fixed frame fixedly connected to the top of the support base. A limit cylinder is fixedly connected to the top of the support base. An electric telescopic rod is fixedly connected to the top of the fixed frame through an opening. A motor is fixedly connected to the telescopic end of the electric telescopic rod. A rotating rod is fixedly connected to the output shaft of the motor through a coupling. A movable plate is rotatably connected to the surface of the rotating rod. A fastening mechanism is provided below the movable plate. Limit mechanisms are provided on both sides of the movable plate.

[0007] Preferably, the fastening mechanism includes a polygonal cylinder, which is fixedly connected to the end of the rotating rod, and a magnet is fixedly connected to the lower part of the interior of the polygonal cylinder.

[0008] Preferably, the limiting mechanism includes an L-shaped plate, which is fixedly connected to one side of the movable plate. A lower inclined block is fixedly connected to the side end of the L-shaped plate. Limiting grooves are provided on both sides of the top of the support base, and sliding blocks are slidably connected inside the limiting grooves.

[0009] Preferably, the top of the sliding block is fixedly connected to an upper inclined panel adapted to the lower inclined block, a second spring is fixedly connected between one side of the inner cavity of the limiting groove and the sliding block, and a sliding cylinder is fixedly connected to one side of the upper inclined panel.

[0010] Preferably, a sliding rod is slidably connected inside the sliding cylinder, a first spring is fixedly connected between one side of the inner cavity of the sliding cylinder and one end of the sliding rod, and an arc-shaped clamping plate is fixedly connected to the other end of the sliding rod.

[0011] Preferably, sliding grooves are provided on both sides of the inner cavity of the fixing frame, and a sliding plate is fixedly connected to the L-shaped plate. The sliding plate is slidably connected to the sliding groove via a slider. Beneficial effects

[0012] This utility model provides a worm shaft nut fastening device for assembling automotive parts. Compared with the prior art, it has the following advantages:

[0013] (1) This utility model involves placing a nut inside a polygonal cylinder and attaching it to a magnetic block. By controlling the extension of an electric telescopic rod, the motor moves downward. The motor moves a moving plate downward via a rotating rod. The rotating rod causes the nut inside the polygonal cylinder to contact the worm shaft downward. At the same time, the moving plate causes the L-shaped plate to move downward. The L-shaped plate causes the lower inclined block to press down on the upper inclined panel, pushing the upper inclined panel towards the center. The upper inclined panel then moves the arc-shaped clamping plate towards the center via a sliding cylinder and a sliding rod, so that the two arc-shaped clamping plates clamp and fix the worm shaft. This allows for automatic clamping of the worm shaft without the need for other procedures, making it more convenient to use.

[0014] (2) This utility model controls the motor to drive the rotating rod to rotate, the rotating rod drives the nut inside the polygonal cylinder to rotate, and at the same time controls the electric telescopic rod to drive the polygonal cylinder to move downward, so that the nut inside the polygonal cylinder rotates and fits on the worm shaft, which can effectively tighten the worm shaft nut and ensure the tightening effect of the nut. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the external structure of this utility model;

[0016] Figure 2 is a schematic diagram of the internal structure of the polygonal tube and magnet block of this utility model;

[0017] Figure 3 is a schematic diagram of the internal structure of the sliding cylinder, sliding rod, first spring and arc-shaped clamping plate of this utility model;

[0018] Figure 4 is a schematic diagram of the internal structure of the limiting groove, the upper inclined panel, the sliding block and the second spring of this utility model.

[0019] In the diagram: 1. Support base; 2. Fixing frame; 3. Limiting cylinder; 4. Electric telescopic rod; 5. Motor; 6. Rotating rod; 7. Moving plate; 8. Fastening mechanism; 9. Limiting mechanism; 81. Polygonal cylinder; 82. Magnet block; 91. L-shaped plate; 92. Lower inclined block; 93. Limiting groove; 94. Upper inclined plate; 95. Sliding cylinder; 96. Sliding rod; 97. First spring; 98. Arc-shaped clamping plate; 99. Slide groove; 910. Sliding plate; 911. Sliding block; 912. Second spring. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please refer to Figures 1-4. This utility model provides a technical solution: a worm gear shaft nut fastening device for assembling automotive parts, including a support base 1 and a fixed frame 2 fixedly connected to the top of the support base 1. A limit cylinder 3 is fixedly connected to the top of the support base 1. An electric telescopic rod 4 is fixedly connected to the top of the fixed frame 2 through an opening. The electric telescopic rod 4 is electrically connected to an external power source and controlled by a control switch. A motor 5 is fixedly connected to the telescopic end of the electric telescopic rod 4. The motor 5 is a servo motor and is electrically connected to an external power source and controlled by a control switch. A rotating rod 6 is fixedly connected to the output shaft of the motor 5 through a coupling. A moving plate 7 is rotatably connected to the surface of the rotating rod 6. A fastening mechanism 8 is provided below the moving plate 7. Limit mechanisms 9 are provided on both sides of the moving plate 7.

[0022] Furthermore, in order to facilitate the fitting of the nut onto the worm shaft, the fastening mechanism 8 includes a polygonal cylinder 81, which is fixedly connected to the end of the rotating rod 6, and a magnet block 82 is fixedly connected to the lower part of the interior of the polygonal cylinder 81.

[0023] It should be noted that the polygonal inner hole of the polygonal cylinder 81 is the same size as the nut. When the nut is inserted into the polygonal cylinder 81 and attracted to the magnet block 82, the nut will be aligned with the worm shaft below.

[0024] Furthermore, in order to automatically clamp and fix the worm shaft, the limiting mechanism 9 includes an L-shaped plate 91, which is fixedly connected to one side of the moving plate 7. A lower inclined block 92 is fixedly connected to the side end of the L-shaped plate 91. Limiting grooves 93 are opened on both sides of the top of the support base 1. A sliding block 911 is slidably connected inside the limiting groove 93. An upper inclined panel 94 that matches the lower inclined block 92 is fixedly connected to the top of the sliding block 911. A sliding cylinder 95 is fixedly connected to one side of the upper inclined panel 94. A sliding rod 96 is slidably connected inside the sliding cylinder 95. A first spring 97 is fixedly connected between one side of the inner cavity of the sliding cylinder 95 and one end of the sliding rod 96. An arc-shaped clamping plate 98 is fixedly connected to the other end of the sliding rod 96. A rubber pad is fixedly connected to one side of the arc-shaped clamping plate 98. Sliding grooves 99 are opened on both sides of the inner cavity of the fixing frame 2. A sliding plate 910 is fixedly connected to the L-shaped plate 91. The sliding plate 910 is slidably connected to the sliding groove 99 by a slider.

[0025] Furthermore, in order to pull the upper inclined panel 94 to move and reset, a second spring 912 is fixedly connected between one side of the inner cavity of the limiting groove 93 and the sliding block 911.

[0026] In use, the worm shaft is initially positioned by placing it into the limiting cylinder 3, and then the nut is inserted into the polygonal cylinder 81 so that it is attracted to the magnet block 82. Then, the electric telescopic rod 4 is extended to drive the motor 5 to move downward. The motor 5 will drive the polygonal cylinder 81 to move downward through the rotating rod 6 and the moving plate 7. The polygonal cylinder 81 will drive the nut to move downward onto the worm shaft through the magnet block 82. The downward movement of the moving plate 7 will drive the L-shaped plate 91 to move downward. The L-shaped plate 91 will drive the lower inclined block 92 to move downward and press the upper inclined plate 94. The lower inclined block 92 will push the upper inclined plate 94 to move towards the middle. The upper inclined plate 94 will push the arc-shaped clamping plate 98 to move towards the middle through the sliding cylinder 95 and the sliding rod 96, so that the two arc-shaped clamping plates 98 clamp and limit the worm shaft in the middle.

[0027] Then, control motor 5 to drive rotating rod 6 to rotate. Rotating rod 6 will drive polygonal cylinder 81 to rotate. Polygonal cylinder 81 will drive nut under magnet block 82 to rotate. At the same time, continue to control electric telescopic rod 4 to extend, so that nut inside polygonal cylinder 81 rotates and moves downward. The nut will gradually rotate downward and fit onto worm shaft. Electric telescopic rod 4 continues to extend, which will drive L-shaped plate 91 to continue to move downward. L-shaped plate 91 will continue to push upper inclined plate 94 to move towards the middle through lower inclined block 92. Upper inclined plate 94 will continue to push sliding cylinder 95. Since arc clamping plate 98 is already clamped on worm shaft, the continued movement of upper inclined plate 94 will drive sliding rod 96 to retract into sliding cylinder 95.

[0028] After the nut is installed on the worm shaft, the control motor 5 stops driving the rotating rod 6 to rotate, so that the polygonal cylinder 81 stops rotating. Then, the control electric telescopic rod 4 retracts, driving the moving plate 7 on the rotating rod 6 to move upward. The moving plate 7 will drive the polygonal cylinder 81 to move upward and reset. The upward pulling force of the polygonal cylinder 81 will pull the magnet block 82 to move upward. Since the nut is threaded on the worm shaft, the upward movement of the magnet block 82 will disengage from the nut. At the same time, the moving plate 7 will drive the two L-shaped plates 91 to move upward, so that the lower inclined plate 92 no longer presses against the upper inclined plate 94. The force of the second spring 912 pulls the sliding block 911 to move outward. The sliding block 911 will drive the upper inclined plate 94 to move outward and reset. The upper inclined plate 94 will drive the arc-shaped clamping plate 98 to move outward through the sliding cylinder 95 and the sliding rod 96, no longer clamping the worm shaft.

Claims

1. A worm shaft nut fastening device for assembling automotive parts, comprising a support base (1) and a fixing frame (2) fixedly connected to the top of the support base (1), characterized in that: The top of the support base (1) is fixedly connected to a limiting cylinder (3), the top of the fixing frame (2) is fixedly connected to an electric telescopic rod (4) through an opening, the telescopic end of the electric telescopic rod (4) is fixedly connected to a motor (5), the output shaft of the motor (5) is fixedly connected to a rotating rod (6) through a coupling, a moving plate (7) is rotatably connected to the surface of the rotating rod (6), a fastening mechanism (8) is provided below the moving plate (7), and a limiting mechanism (9) is provided on both sides of the moving plate (7).

2. The worm shaft nut fastening device for assembling automotive parts according to claim 1, characterized in that: The fastening mechanism (8) includes a polygonal cylinder (81), which is fixedly connected to the end of the rotating rod (6), and a magnet block (82) is fixedly connected to the lower part of the interior of the polygonal cylinder (81).

3. The worm shaft nut fastening device for assembling automotive parts according to claim 1, characterized in that: The limiting mechanism (9) includes an L-shaped plate (91), which is fixedly connected to one side of the moving plate (7). A lower inclined block (92) is fixedly connected to the side end of the L-shaped plate (91). Limiting grooves (93) are opened on both sides of the top of the support base (1). A sliding block (911) is slidably connected inside the limiting groove (93).

4. A worm shaft nut tightening apparatus for assembling an automobile part according to claim 3, characterized in that: The top of the sliding block (911) is fixedly connected to an upper inclined plate (94) that is adapted to the lower inclined block (92). A second spring (912) is fixedly connected between one side of the inner cavity of the limiting groove (93) and the sliding block (911). A sliding cylinder (95) is fixedly connected to one side of the upper inclined plate (94).

5. A worm shaft nut tightening apparatus for assembling an automobile part according to claim 4, characterized in that: The sliding cylinder (95) is slidably connected to a sliding rod (96). A first spring (97) is fixedly connected between one side of the inner cavity of the sliding cylinder (95) and one end of the sliding rod (96). An arc-shaped clamping plate (98) is fixedly connected to the other end of the sliding rod (96).

6. The worm shaft nut fastening device for assembling automotive parts according to claim 5, characterized in that: The inner cavity of the fixed frame (2) is provided with sliding grooves (99) on both sides. A sliding plate (910) is fixedly connected to the L-shaped plate (91). The sliding plate (910) is slidably connected to the sliding groove (99) by a slider.

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