Six-head diameter-adjustable bolt tightening device

Abstract

The utility model discloses a six-head diameter-adjustable bolt tightening device which is characterized in that the six-head diameter-adjustable bolt tightening device comprises a support, a first rotating disc, a center distance adjusting device and a bolt tightening gun, the first rotating disc is rotationally arranged on the support, and the bolt tightening gun is arranged on the first rotating disc through the center distance adjusting device; the center distance adjusting device comprises a second rotating disc, six linear sliding rails, a gun fixing plate, a first adjusting screw rod and a first adjusting nut, the six linear sliding rails are fixedly arranged on the first rotating disc in a divergent mode and evenly distributed in the circumferential direction, and the gun fixing plate is arranged on the linear sliding rails in a sliding mode through sliding blocks; the bolt tightening gun has the advantages that the structure is simple, six tightening gun heads can be installed at the same time, and the center distance of the six gun heads can be adjusted, so that the bolt tightening gun is suitable for tightening bolts of various specifications on the same plane, the circumferential positions of the tightening guns can be finely adjusted, and alignment of screwdriver heads on the tightening gun heads and the bolts is more precise.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of assembly tools, specifically relates to a six adjustable diameter bolt tightening device. BACKGROUND

[0002] On the automobile assembly production line, connection is usually carried out through multiple bolts in one mounting plane, and the existing tightening mode is that workers hold electric tightening guns to tighten each bolt, so that the assembly efficiency is low, the labor intensity of workers is large, and the torque balance on each nut cannot be guaranteed. SUMMARY

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a six adjustable diameter bolt tightening device, which can simultaneously tighten six bolts, improves the assembly efficiency, and is suitable for tightening bolts of various specifications.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A six adjustable diameter bolt tightening device is characterized by comprising a support, a first turntable, a center distance adjusting device, and a bolt tightening gun, wherein the first turntable is rotationally arranged on the support, the bolt tightening gun is arranged on the first turntable through the center distance adjusting device, the center distance adjusting device comprises a second turntable, linear slide rails, a gun fixing plate, a first adjusting screw rod, and a first adjusting nut, the number of the linear slide rails is six, the six linear slide rails are fixed on the first turntable in a divergent manner and are uniformly distributed in the circumferential direction, the gun fixing plate is slidingly arranged on the linear slide rails through a sliding block, the bolt tightening gun is fixed on the gun fixing plate, the second turntable is rotationally arranged on the first turntable through a first rotating shaft, the second turntable is provided with an arc-shaped guide groove, the gun fixing plate is provided with a guide column matched with the arc-shaped guide groove, the first adjusting nut is rotationally arranged on the second turntable, the first turntable is provided with a first screw rod seat, the first adjusting screw rod is rotationally arranged on the first screw rod seat in a horizontal manner, and the front end of the first adjusting screw rod is matched with the first adjusting nut.

[0006] Further, the second turntable is provided with a hollow hole through which the bolt tightening gun passes.

[0007] Further, the support is provided with support wheels, the number of the support wheels is multiple, and the support wheels are annularly distributed on the outer periphery of the first turntable.

[0008] Further, the first turntable is rotationally arranged with a second adjusting nut, the support is provided with a second screw rod seat, the second screw rod seat is rotationally arranged with a second adjusting screw rod in a horizontal manner, and the second adjusting screw rod is matched with the second adjusting nut.

[0009] Furthermore, an angle gauge is provided on the first turntable.

[0010] Furthermore, a plurality of connecting rods are provided at the rear of the first turntable, and the rear end of the connecting rods is connected to a tail plate.

[0011] The advantages of this utility model include: simple structure, six tightening gun heads can be installed at the same time, and the center distance of the six gun heads can be adjusted, so as to adapt to the tightening of bolts of various specifications on the same plane. The circumferential position of the tightening gun can also be finely adjusted, so that the bit on the tightening gun head and the bolt are more precisely aligned. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the center distance adjustment device of this utility model (the second turntable is not shown);

[0014] Figure 3 This is a schematic diagram of the rear structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the gun fixing plate structure of this utility model. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] One such Figures 1-4 The six-head adjustable diameter bolt tightening device shown includes a bracket 1, a first turntable 2, a center distance adjustment device, and a bolt tightening gun 3. The first turntable 2 is rotatably mounted on the bracket 1. The bracket 1 is provided with multiple support wheels 11, which are distributed in a ring around the outer periphery of the first turntable 2, so that the first turntable 2 can rotate smoothly.

[0018] The number of bolt tightening guns 3 is six, and the bolt tightening guns 3 are arranged on the first rotating disc 2 through a center distance adjusting device. The center distance adjusting device comprises a second rotating disc 4, six linear sliding rails 5, a gun fixing plate 6, a first adjusting screw 7, and a first adjusting nut 8. The six linear sliding rails 5 are fixed on the first rotating disc 2 in a divergent manner and are uniformly distributed in the circumferential direction. The gun fixing plate 6 is arranged on the linear sliding rails 5 through sliding blocks, and the bolt tightening guns 3 are fixed on the gun fixing plate 6. The second rotating disc 4 is arranged on the first rotating disc 2 through a first rotating shaft 9. The second rotating disc 4 has a hollow hole 42 through which the bolt tightening guns 3 pass. The second rotating disc 4 has an arc-shaped guide groove 41, and the gun fixing plate 6 is provided with a guide column 61 matched with the arc-shaped guide groove 41. The first adjusting nut 8 is arranged on the second rotating disc 4. The first rotating disc 2 is provided with a first screw rod seat 10, and the first adjusting screw 7 is arranged on the first screw rod seat 10 in a horizontal rotating manner. The front end of the first adjusting screw 7 is matched with the first adjusting nut 8. Through rotating the first adjusting screw 7, the second rotating disc 4 is driven to rotate, the arc-shaped guide groove 41 on the second rotating disc 4 extrudes the guide column 61, and then the gun fixing plate 6 moves outward or inward along the linear sliding rails 5, so as to finally adjust the diameter of the circle in which the bolt tightening guns 3 are arranged, so as to adapt to the bolt positions on different index circles.

[0019] In order to make the bolt tightening guns 3 correspond to the bolt positions in the circumferential direction, the first rotating disc 2 of the embodiment is provided with a second adjusting nut 12 arranged in a rotating manner, the support 1 is provided with a second screw rod seat 13, the second screw rod seat 13 is provided with a second adjusting screw 14 arranged in a horizontal rotating manner, and the second adjusting screw 14 is matched with the second adjusting nut 12. Through rotating the second adjusting screw 14, the first rotating disc 2 is driven to rotate, so as to change the positions of the bolt tightening guns 3 in the circumferential direction.

[0020] In order to make the bolt tightening guns 3 convenient to be referenced when the positions of the bolt tightening guns 3 in the circumferential direction are adjusted, the embodiment is provided with an angle ruler 15 on the support 1.

[0021] In order to conveniently monitor the rotating angle of the second rotating disc 4, so as to obtain the diameter of the index circle in which the bolt tightening guns 3 are arranged, the embodiment is provided with an absolute value encoder 19 at the rear of the first rotating disc 2 and is fixed on the first rotating disc 2 through an encoder mounting support 18.

[0022] In order to make the front and rear weights of the bolt tightening guns balanced, so as to make the whole device keep in a horizontal state, the embodiment is provided with a plurality of connecting rods 16 at the rear of the first rotating disc 2, and the rear ends of the connecting rods 16 are connected with tail plates 17 used for counterweight balancing.

[0023] The technical solutions provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the embodiments of the present application are described by applying specific examples; the above description of the embodiments is only applicable to helping understand the principles of the embodiments of the present application; meanwhile, for the general technical personnel in the art, the embodiments of the present application will have changes in the specific implementation manners and application ranges, and the above description should not be understood as the limitation of the embodiments of the present application.

Claims

1. A six head adjustable diameter bolt tightening device characterized by: The application relates to a bolt tightening gun center distance adjusting device, which comprises a support (1), a first rotating disc (2), a center distance adjusting device and a bolt tightening gun (3), wherein the first rotating disc (2) is rotationally arranged on the support (1), the bolt tightening gun (3) is arranged on the first rotating disc (2) through the center distance adjusting device, the center distance adjusting device comprises a second rotating disc (4), linear sliding rails (5), a gun fixing plate (6), a first adjusting screw (7) and a first adjusting nut (8), the number of the linear sliding rails (5) is six, the six linear sliding rails (5) are fixed on the first rotating disc (2) in a diverging manner and are uniformly distributed in the circumferential direction, the gun fixing plate (6) is slidingly arranged on the linear sliding rails (5) through a sliding block, the bolt tightening gun (3) is fixed on the gun fixing plate (6), the second rotating disc (4) is rotationally arranged on the first rotating disc (2) through a first rotating shaft (9), the second rotating disc (4) is provided with an arc-shaped guide groove (41), the gun fixing plate (6) is provided with a guide column (61) matched with the arc-shaped guide groove (41), the first adjusting nut (8) is rotationally arranged on the second rotating disc (4), the first rotating disc (2) is provided with a first screw rod seat (10), the first adjusting screw (7) is horizontally rotationally arranged on the first screw rod seat (10), and the front end of the first adjusting screw (7) is matched with the first adjusting nut (8).

2. A six head adjustable diameter bolt tightening apparatus as claimed in claim 1 wherein: The second rotating disc (4) is provided with a hollow hole (42) through which the bolt tightening gun (3) passes.

3. The six head adjustable diameter bolt tightening device of claim 1, wherein: The support (1) is provided with supporting wheels (11), the number of the supporting wheels (11) is plural, and the supporting wheels (11) are annularly distributed on the outer periphery of the first rotating disc (2).

4. The six head adjustable diameter bolt tightening device of claim 1, wherein: The first rotating disc (2) is rotationally provided with a second adjusting nut (12), the support (1) is provided with a second screw rod seat (13), the second screw rod seat (13) is horizontally rotationally provided with a second adjusting screw (14), and the second adjusting screw (14) is matched with the second adjusting nut (12).

5. The six head adjustable diameter bolt tightening device of claim 1, wherein: The first rotating disc (2) is provided with an angle ruler (15).

6. A six head adjustable diameter bolt tightening apparatus as claimed in claim 1, wherein: The rear part of the first rotating disc (2) is provided with a plurality of connecting rods (16), and the rear end of the connecting rod (16) is connected with a tail disc (17).

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