A mobile screwing apparatus

Abstract

The utility model relates to the technical field of automatic fastening of automobile industry bolt provides a mobile tightening equipment, include: electric trolley, pivot subassembly, stand column subassembly, two axle moving mechanism, crossbeam subassembly, boom, tightening spindle, tightening sleeve, be provided with pivot subassembly on electric trolley, be provided with stand column subassembly on pivot subassembly, be provided with two axle moving mechanism on stand column subassembly, the slider of two axle moving mechanism and crossbeam subassembly sliding connection, be provided with boom on crossbeam subassembly, the end of boom rotatable setting front board, be provided with at least one tightening spindle on front board, the output of tightening spindle sets up tightening sleeve, the utility model can realize tightening equipment mobile use, need not be restricted by space, facilitate use on different work stations in workshop, improve equipment utilization rate, and realize multi -angle adjustment.

Description

Technical Field

[0001] This utility model relates to the field of automatic bolt tightening technology in the automotive industry, and in particular to a mobile tightening device. Background Technology

[0002] Wheel bolts play a crucial role in automobiles, primarily serving to reliably connect the wheels, brake discs, and rims. The weight of a car is ultimately borne by the wheels, and the connection between the wheels and the body is achieved through the wheel bolts. These bolts not only bear the weight of the entire vehicle but also transmit the torque output from the transmission to the wheels. Therefore, wheel bolts are subjected to both tensile and shear forces during operation.

[0003] Structurally, tire bolts are relatively simple in composition, mainly consisting of a bolt, a nut, and a washer. Depending on the bolt structure, tire bolts can be divided into single-ended bolts and double-ended bolts. Currently, most cars use single-ended bolts.

[0004] Traditional engine assembly threaded connections require manual tightening of bolts one by one, which presents technical problems such as the inability to tighten multiple bolts simultaneously, low precision, and high labor intensity. Bolt tightening machines can automate bolt tightening; however, bolt tightening machines are usually used in a fixed location, which limits their use to different workstations in the workshop, resulting in low equipment utilization. Furthermore, existing bolt tightening machines typically have only one tightening head, and the position of the tightening head cannot be adjusted. Utility Model Content

[0005] This utility model mainly addresses the technical problems of existing bolt tightening machines, which are usually used in a fixed location, are limited by space, cannot be used at different workstations in the workshop, and have low equipment utilization. It proposes a mobile tightening device to enable the tightening device to be used in a mobile manner, without being limited by space, and can be used at different workstations in the workshop, thereby improving equipment utilization and enabling multi-angle adjustment.

[0006] This utility model provides a mobile tightening device, including: an electric trolley, a rotating shaft assembly, a column assembly, a two-axis moving mechanism, a crossbeam assembly, a lifting rod, a tightening shaft, and a tightening sleeve;

[0007] The electric trolley is equipped with a rotating shaft assembly; the rotating shaft assembly is equipped with a column assembly;

[0008] The column assembly is equipped with a two-axis moving mechanism; the slider of the two-axis moving mechanism is slidably connected to the crossbeam assembly.

[0009] A suspension rod is provided on the crossbeam assembly; a front plate is rotatably provided at the end of the suspension rod, and at least one tightening shaft is provided on the front plate;

[0010] A tightening sleeve is provided at the output end of the tightening shaft.

[0011] Preferably, the boom is C-shaped.

[0012] Preferably, the end of the boom is fitted with a front plate via a flange and a bearing.

[0013] Preferably, a round handle is fixedly mounted on the front plate.

[0014] Preferably, the two-axis moving mechanism includes: a Y-axis linear slide rail, a vertical push rod, an X-axis linear slide rail, and a horizontal push rod;

[0015] The Y-axis linear slide rail is fixedly mounted on the column assembly, and a slider is slidably mounted on the Y-axis linear slide rail;

[0016] The vertical push rod is mounted on the column assembly, and the telescopic end of the vertical push rod is connected to the slider;

[0017] The crossbeam assembly is provided with an X-axis linear slide rail, and the slider is also slidably connected to the X-axis linear slide rail.

[0018] The horizontal push rod is mounted on the slider, and the telescopic end of the horizontal push rod is connected to the crossbeam assembly.

[0019] Preferably, the tightening shaft is an electric tightening shaft.

[0020] The mobile tightening device provided by this utility model has the following advantages compared with the prior art:

[0021] 1. The tightening equipment includes an electric trolley, with the main body mounted on it. The tightening equipment is mobile and can be moved to the location of the workpiece to be tightened, without being restricted by space. This makes it more convenient to use at different workstations in the workshop and adaptable to multi-workstation mobile use, thus improving equipment utilization.

[0022] 2. A rotating shaft assembly is provided, allowing manual adjustment of the circumferential angle of the tightening shaft. A two-axis moving mechanism enables vertical and horizontal movement of the lifting rod and tightening shaft, positioning the tightening shaft at the height and horizontal position of the workpiece to be tightened. A round handle allows rotation of the front plate and tightening shaft to align the tightening shaft with the workpiece. This mobile tightening device is adjustable at multiple angles and has a wide range of applications.

[0023] 3. Multiple tightening heads are provided, and their positions can be adjusted at multiple angles. The tightening heads utilize electric tightening shafts, enabling automatic rotation and tightening of bolts. Precise control of tightening torque eliminates torque inaccuracies during bolt tightening, ensuring assembly quality. This invention features a high degree of automation, simple operation, quick adjustment, precise positioning, and high efficiency, making it suitable for large-scale assembly line production and meeting production cycle requirements.

[0024] 4. Using this equipment can reduce the labor intensity of workers, overcome the damage to the operator's hands and elbows that often occurs when manually tightening each one; and it is low in noise during use, which is environmentally friendly and avoids damage to the operator's ears. Attached Figure Description

[0025] Figure 1 This is a front view of a mobile tightening device provided by this utility model;

[0026] Figure 2 This is a side view of a mobile tightening device provided by this utility model;

[0027] Figure 3 This is a top view of a mobile tightening device provided by this utility model.

[0028] Reference numerals: 1. Tightening shaft; 2. Hanging rod; 3. Crossbeam assembly; 4. Horizontal push rod; 5. Vertical push rod; 6. Column assembly; 7. Rotating shaft assembly; 8. Electric trolley; 9. Front plate; 10. Round handle; 11. Spring balancer; 12. Tightening sleeve; 13. Slider. Detailed Implementation

[0029] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0030] like Figure 1-3 As shown in the figure, a mobile tightening device provided by this utility model embodiment includes: an electric trolley 8, a rotating shaft assembly 7, a column assembly 6, a two-axis moving mechanism, a crossbeam assembly 3, a hanging rod 2, a tightening shaft 1, and a tightening sleeve 12.

[0031] The electric trolley 8 is equipped with a rotating shaft assembly 7; the rotating shaft assembly 7 is equipped with a column assembly 6, and the rotating shaft assembly 7 is connected to the column assembly 6 by bolts. The rotating shaft assembly 7 can be manually rotated to adjust the circumferential angle of the column assembly 6 and the tightening shaft 1.

[0032] A two-axis moving mechanism is provided on the column assembly 6; the slider 13 of the two-axis moving mechanism is slidably connected to the crossbeam assembly 3. Specifically, the two-axis moving mechanism includes: a Y-axis linear slide rail, a vertical push rod 5, an X-axis linear slide rail, and a horizontal push rod 4; the Y-axis linear slide rail is fixedly mounted on the column assembly 6, and the slider 13 is slidably mounted on the Y-axis linear slide rail; the vertical push rod 5 is mounted on the column assembly 6, and the telescopic end of the vertical push rod 5 is connected to the slider 13; the crossbeam assembly 3 is provided with an X-axis linear slide rail, and the slider 13 is also slidably connected to the X-axis linear slide rail. The horizontal push rod 4 is mounted on the slider 13, and the telescopic end of the horizontal push rod 4 is connected to the crossbeam assembly 3.

[0033] When the two-axis moving mechanism is working, the extension and retraction of the vertical push rod 5 can drive the slider 13, the horizontal push rod 4, the crossbeam assembly 3, the hanging rod 2, and the tightening shaft 1 to rise and fall along the Y-axis linear slide rail; the extension and retraction of the horizontal push rod 4 can drive the crossbeam assembly 3, the hanging rod 2, and the tightening shaft 1 to move horizontally along the X-axis linear slide rail.

[0034] A suspension rod 2 is mounted on the crossbeam assembly 3; the suspension rod 2 is C-shaped. A front plate 9 is rotatably mounted at the end of the suspension rod 2, and at least one tightening shaft 1 is mounted on the front plate 9; a tightening sleeve 12 is mounted at the output end of the tightening shaft 1. In this invention, two tightening shafts 1 are mounted on the front plate 9. Specifically, the front plate 9 is mounted on the end of the suspension rod 2 via a flange and a bearing. A round handle 10 is fixedly mounted on the front plate 9. Rotating the round handle 10 can rotate the front plate 9 and the tightening shafts 1 on the front plate 9, thereby achieving circumferential rotation adjustment of the tightening shafts 1.

[0035] In this invention, the tightening shaft 1 is an electric tightening shaft, a precision tool used in automated assembly lines, primarily for tightening fasteners such as screws and bolts. The electric tightening shaft can automatically rotate and tighten bolts, and can precisely control the tightening torque. An electric tightening shaft typically includes: a motor, a planetary gear reducer, a torque sensor, and an output shaft; the torque sensor is connected to the tightening sleeve 12 via the output shaft.

[0036] Additionally, a spring balancer 11 is provided on the back of the column assembly 6; the rope end of the spring balancer 11 is connected to the crossbeam assembly 3. The spring balancer 11 is used to assist in the lifting and lowering of the crossbeam assembly 3.

[0037] The working principle of this utility model is as follows: During manual operation, the electric trolley 8 is moved to the designated workstation. The vertical push rod 5 and the horizontal push rod 4 extend and retract, enabling the vertical and horizontal movement of the lifting rod 2 and the tightening shaft 1. The tightening shaft 1 is moved to the height and horizontal position of the workpiece (bolt) to be tightened. According to the position of the workpiece to be tightened, the front plate 9 and the tightening shaft 1 are aligned by rotating the round handle 10. The tightening shaft 1 is aligned with the workpiece to be tightened, and the tightening shaft 1 begins to tighten the bolt. When the tightening torque is reached, the horizontal push rod 4 retracts, causing the tightening shaft 1 to disengage from the workpiece, and the tightening operation is completed in one go.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions for some or all of the technical features, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mobile screwing apparatus, characterized in that include: Electric trolley (8), rotating shaft assembly (7), column assembly (6), two-axis moving mechanism, crossbeam assembly (3), lifting rod (2), tightening shaft (1), tightening sleeve (12); The electric trolley (8) is provided with a rotating shaft assembly (7); the rotating shaft assembly (7) is provided with a column assembly (6); The column assembly (6) is provided with a two-axis moving mechanism; the slider (13) of the two-axis moving mechanism is slidably connected to the crossbeam assembly (3); A hanger rod (2) is provided on the crossbeam assembly (3); a front plate (9) is rotatably provided at the end of the hanger rod (2), and at least one tightening shaft (1) is provided on the front plate (9); A tightening sleeve (12) is provided at the output end of the tightening shaft (1).

2. The mobile tightening device according to claim 1, characterized in that, The boom (2) is C-shaped.

3. The mobile tightening device according to claim 1, characterized in that, The end of the boom (2) is fitted with a front plate (9) via a flange and bearing.

4. The mobile tightening device according to claim 3, characterized in that, A round handle (10) is fixedly installed on the front plate (9).

5. The mobile tightening device according to claim 1, characterized in that, The two-axis moving mechanism includes: a Y-axis linear slide rail, a vertical push rod (5), an X-axis linear slide rail, and a horizontal push rod (4); The Y-axis linear slide rail is fixedly mounted on the column assembly (6), and the slider (13) is slidably mounted on the Y-axis linear slide rail. The vertical push rod (5) is mounted on the column assembly (6), and the telescopic end of the vertical push rod (5) is connected to the slider (13); The beam assembly (3) is provided with an X-axis linear slide rail, and the slider (13) is also slidably connected to the X-axis linear slide rail; The horizontal push rod (4) is mounted on the slider (13), and the telescopic end of the horizontal push rod (4) is connected to the crossbeam assembly (3).

6. The mobile tightening device according to claim 1, characterized in that, The tightening shaft (1) is an electric tightening shaft.

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