A rear suspension bolt cap tightening tool
By designing a rear suspension bolt cap tightening tool, the locking nut is not rotated by using a rotating wrench and a limiting mechanism, and combining a rotating motor and a cylinder to achieve automatic tightening, the problem of the back nut not rotating in a limited space is solved, and the automatic tightening is improved Efficiency and precision reduce labor intensity.
Patent Information
- Application Number
- CN202110064575.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-01-18
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2041-01-18
AI Technical Summary
When the robot automatically tightens the rear suspension assembly of the vehicle, the problem of the back nut not rotating cannot be effectively solved in the limited space, resulting in the need to manually use two tools to tighten.
Design a rear suspension bolt cap tightening tool, using a rotating wrench and limiting mechanism to lock the nut without rotating, and automatically tighten it by rotating the motor and cylinder. The sleeve telescopic and retract when entering the suspension assembly to ensure the nut and bolt. Accurate alignment and tightening.
It realizes automatic tightening of bolts and nuts in a limited space, improves efficiency, reduces labor intensity, replaces manual operation, and improves the accuracy and efficiency of automated tightening.
Smart Images
Figure CN112756957B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a rear suspension bolt cap tightening tool, belonging to the technical field of automation equipment. Background Art
[0002] When the robot automatically tightens the rear suspension assembly of the vehicle, it is necessary to tighten the bolts and the nuts on the back at the same time in a limited space. In general, this work requires people to use two tools, a tightening gun to tighten the front and a wrench to lock the nuts on the back so that the nuts do not rotate. If automatic tightening is used, the structure, size and space of the tooling are limited, and the problem of the nuts on the back not rotating cannot be solved in a limited space. Summary of the invention
[0003] In order to solve the defects of the prior art, the purpose of the present invention is to provide a rear suspension bolt cap tightening tool. The tightening sleeve avoids the rear suspension when entering the suspension assembly, telescopes and rotates before tightening, and uses a rotating wrench to lock the nut so that it does not rotate, thereby completing automatic tightening.
[0004] The technical solution of the present invention is: a rear suspension bolt nut tightening tool, a tightening shaft is connected to a driving sleeve, a rotary wrench is provided on the opposite side of the sleeve, a nut accommodating hole is provided at the end of the rotary wrench, a stopper is provided at the end of the nut accommodating hole, the rotary wrench is connected to the spline shaft through a rotary shaft, the spline shaft is connected to a rotary motor through a rotary limit plate, a limit column is provided on the side of the rotary limit plate, the rotary shaft passes through and is rotatably connected to a push-pull drive plate, and the push-pull drive plate is connected to a cylinder through a push-pull rod.
[0005] The rotating motor and the cylinder are both fixed on the housing, and the fixed end of the limiting column is fixed on the housing.
[0006] The rotation limit plate is fixed on the inner wall of the shell, and a limit notch is formed on the rotation limit plate. Limit end faces are arranged on both sides of the limit notch, and the limit end of the limit column is located on the rotation path of the limit end face.
[0007] The rotating shaft is provided with a cavity for accommodating a spline shaft, and the spline shaft is slidably connected to the inner wall of the cavity.
[0008] The housing is provided with a connecting flange for connecting to an industrial robot.
[0009] The cylinder is a double-rod cylinder.
[0010] The nut accommodating hole is a regular polygon, and the regular polygon is the same as the shape of the nut.
[0011] The invention has the beneficial effects that the tightening sleeve avoids the rear suspension when entering the suspension assembly, and retracts and rotates before tightening, so that the nut enters the locking hole at the end of the rotary wrench, the nut is locked and no longer rotates, and the tightening shaft drives the sleeve to tighten the bolt, thus completing automatic tightening, replacing manual tightening, improving efficiency, and reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 A perspective view of the present invention;
[0013] Figure 2 It is the internal structure diagram of the present invention;
[0014] Figure 3 The position relationship between the rotation limit plate and the limit column Figure 1 ;
[0015] Figure 4 The position relationship between the rotation limit plate and the limit column Figure 2 ;
[0016] Figure 5 This is a cross-sectional view of the end of the rotary wrench.
[0017] The reference numerals in the figure are as follows: 1. tightening shaft, 2. sleeve, 3. rotary wrench, 4. nut accommodating hole, 5. rotating shaft, 6. rotating motor, 7. push-pull drive plate, 8. push-pull rod, 9. cylinder, 10. spline shaft, 11. rotation limit plate, 12. limit column, 13. housing, 14. connecting flange, 15. stop table. DETAILED DESCRIPTION
[0018] The following is combined with Figure 1-5 The present invention is further described:
[0019] A rear suspension bolt cap tightening tool, a tightening shaft 1 connected to a driving sleeve 2, a rotary wrench 3 is provided on the opposite side of the sleeve 2, a nut receiving hole 4 is provided at the end of the rotary wrench 3, the nut receiving hole 4 is a regular polygon, the regular polygon is the same as the nut shape, a stopper 15 is provided at the end of the nut receiving hole 4, the rotary wrench 3 is connected to a spline shaft 10 through a rotating shaft 5, the spline shaft 10 is connected to a rotating motor 6 through a rotating limit plate 11, a limit column 12 is provided on the side of the rotating limit plate 11, the rotating shaft 5 penetrates and rotates to connect a push-pull driving plate 7, and the push-pull driving plate 7 is connected to a cylinder 9 through a push-pull rod 8. The cylinder 9 is a double-rod cylinder.
[0020] The rotating motor 6 and the cylinder 9 are both fixed on the housing 13, and the fixed end of the limiting column 12 is fixed on the housing 13. The rotating limiting plate 11 is fixed on the inner wall of the housing 13. The rotating limiting plate 11 has a limiting notch, and limiting end faces are provided on both sides of the limiting notch. The limiting end of the limiting column 12 is located on the rotation path of the limiting end face. The housing 13 is provided with a connecting flange 14 for connecting an industrial robot.
[0021] The rotating shaft 5 is provided with a cavity for accommodating the spline shaft 10 , and the spline shaft 10 is slidably connected to the inner wall of the cavity.
[0022] The working process of the present invention is as follows:
[0023] Rotate wrench 3 Figure 1 In the angle state shown, the nut is loaded in the nut receiving hole 4, and the bolt is loaded in the sleeve 2. The industrial robot drives the tool to move to the position of the rear suspension of the vehicle to be tightened. The double-rod cylinder pushes the rotary wrench 3 to extend into the back of the rear suspension. The rotary motor 6 drives the rotary wrench 3 to rotate 90° counterclockwise, so that the nut receiving hole 4 is opposite to the sleeve 2, that is, the nut is opposite to the bolt. The rotation angle is controlled by a mechanical limit. The rotary wrench 3 is in Figure 1 When the angle is shown, the position relationship between the limit column 12 and the rotation limit plate 11 is as follows: Figure 3 As shown, when the nut receiving hole 4 is facing the sleeve 2, the rotation limit plate 11 rotates 90 degrees counterclockwise, and the position relationship with the limit column 12 is as shown in FIG. Figure 4 As shown, the rotation angle of the rotation limit plate 11 is limited by the fixed position limit column 12 to ensure the accurate position of the nut and the bolt. After the position is aligned, the tightening shaft 1 drives the sleeve 2 to rotate, the sleeve 2 drives the bolt on it to rotate, the cylinder 9 drives the rotating wrench 3 and the nut on it to move toward the bolt on the sleeve 2, and the bolt and nut tighten the rear suspension of the vehicle.
[0024] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A rear suspension bolt cap tightening tool, characterized in that: The tightening shaft (1) is connected to the driving sleeve (2), a rotating wrench (3) is provided on the opposite side of the sleeve (2), a nut receiving hole (4) is provided at the end of the rotating wrench (3), a stopper (15) is provided at the end of the nut receiving hole (4), the rotating wrench (3) is connected to the spline shaft (10) through the rotating shaft (5), the spline shaft (10) is connected to the rotating motor (6) through the rotating limit plate (11), a limit column (12) is provided on the side of the rotating limit plate (11), the rotating shaft (5) passes through and is rotatably connected to the push-pull driving plate (7), and the push-pull driving plate (7) is connected to the cylinder (9) through the push-pull rod (8); The rotating motor (6) and the cylinder (9) are both fixed on the housing (13), and the fixed end of the limiting column (12) is fixed on the housing (13); The rotation limit plate (11) is fixed on the inner wall of the housing (13), a limit notch is formed on the rotation limit plate (11), limit end faces are arranged on both sides of the limit notch, and the limit end of the limit column (12) is located on the rotation path of the limit end face; The nut accommodating hole (4) is a regular polygon, and the regular polygon has the same shape as the nut.
2. The rear suspension bolt cap tightening tool according to claim 1, characterized in that: The rotating shaft (5) is provided with a cavity for accommodating a spline shaft (10), and the spline shaft (10) is slidably connected to the inner wall of the cavity.
3. The rear suspension bolt cap tightening tool according to claim 1, characterized in that: The housing (13) is provided with a connecting flange (14) for connecting to an industrial robot.
4. The rear suspension bolt cap tightening tool according to claim 1, characterized in that: The cylinder (9) is a double-rod cylinder.