Passenger car middle axle adjusting nut tightening detection mechanism

Abstract

The application provides a passenger car middle axle adjusting nut tightening detection mechanism, which is composed of a first pneumatic rotating mechanism, a pneumatic lifting mechanism, a second pneumatic rotating mechanism, a PLC control system, a tightening connecting mechanism and a non-standard sleeve assembly; the first pneumatic rotating mechanism is connected with a small crane; the pneumatic lifting mechanism is installed on the first pneumatic rotating mechanism; the second pneumatic rotating mechanism is installed on the pneumatic lifting mechanism; the PLC control system is installed on the second pneumatic rotating mechanism; the tightening connecting mechanism is installed on the second pneumatic rotating mechanism; and the non-standard sleeve assembly is installed on the tightening connecting mechanism. The application adopts a PLC system to control two groups of tightening guns, uses the same set of tooling, and is connected through gears to realize the same station, first tighten the adjusting nut, and then detect the hub starting torque after switching the program through the PLC, so that flexible production is achieved.

Description

Technical Field

[0001] This invention relates to the field of adjusting nut tightening detection technology, specifically to a mechanism for detecting the tightening of adjusting nuts on the middle axle of passenger vehicles. Background Technology

[0002] The center axle adjusting nut plays a crucial role in passenger vehicles, primarily used to adjust certain parameters of the center axle to ensure the vehicle's driving performance and stability. Currently, the workstation for testing the tightening of the adjusting nut uses two sets of fixtures, each equipped with a tightening gun with a different torque. The adjusting nut is first tightened, and then the fixture is changed to use another set of tightening guns to test the wheel hub starting torque. Summary of the Invention

[0003] To address the aforementioned problems, this invention discloses a mechanism for detecting the tightening of the adjusting nut on the middle axle of a passenger vehicle.

[0004] The specific plan is as follows: A passenger vehicle axle adjusting nut tightening detection mechanism is characterized by comprising: a first pneumatic rotating mechanism, a pneumatic lifting mechanism, a second pneumatic rotating mechanism, a PLC control system, a tightening connection mechanism, and a non-standard sleeve assembly; the first pneumatic rotating mechanism is connected to a trolley and can rotate 360°, and is braked in the working state; the pneumatic lifting mechanism is mounted on the first pneumatic rotating mechanism and can move linearly up and down; the second pneumatic rotating mechanism is mounted on the pneumatic lifting mechanism and can rotate horizontally, and is braked in the working state; the PLC control system is mounted on the second pneumatic rotating mechanism and is used to control the real-time switching of the tightening gun; the tightening connection mechanism is mounted on the second pneumatic rotating mechanism and is connected by gears to switch the tightening detection position; the non-standard sleeve assembly is mounted on the tightening connection mechanism and is used to tighten the axle adjusting nut and detect the starting torque of the wheel hub.

[0005] As a further improvement of the present invention, the first pneumatic rotation mechanism includes a first connecting seat, a first pneumatic brake cylinder, a rotating shaft, and a safety belt. The first pneumatic brake cylinder, the rotating shaft, and the rotating shaft are arranged sequentially from top to bottom and are located in the middle of the first connecting seat. The first connecting seat and the first pneumatic brake cylinder are bolted to the rotating shaft, enabling 360° rotation. The safety belt is suspended from the bottom of the first connecting seat for protection.

[0006] As a further improvement of the present invention, the pneumatic lifting mechanism is located below the pneumatic rotating mechanism and includes a column, a lifting cylinder, a first connecting shaft and a second connecting seat. The column is located below the rotating shaft, the lifting cylinder is located on one side of the column, and the first connecting shaft is located in the lower section of the column and can move linearly up and down. Its lower end is bolted to the second connecting seat.

[0007] As a further improvement of the present invention, the second pneumatic rotation mechanism includes a third connecting seat, a second pneumatic brake cylinder and a starting handle. The front end of the third connecting seat is connected to the bottom of the second connecting seat, and the second pneumatic brake cylinder is disposed below the rear end. The starting handle is placed on the side of the second pneumatic brake cylinder and is used to control the tightening start and stop.

[0008] As a further improvement of the present invention, the PLC control system includes a PLC controller and a connecting bracket. The PLC controller is fixed to the upper end of the connecting bracket by bolts and is used to control the switching of the tightening sequence. The lower end of the connecting bracket is mounted on a third connecting seat.

[0009] As a further improvement of the present invention, the tightening connection mechanism includes a second connecting shaft, two sets of tightening guns and a gear assembly. There are multiple second connecting shafts, which are arranged around the two sets of tightening guns. The gear assembly is installed in cooperation with the front end of the two sets of tightening guns. The tightening guns are controlled by the program of the PLC control system. The two sets of tightening guns switch to tighten the bolts and detect the starting torque, and are connected to the front tooling through the gear assembly.

[0010] As a further improvement of the present invention, the non-standard sleeve assembly includes a fourth connecting seat, a non-standard sleeve, and a starter lever assembly. The non-standard sleeve is located at the front center of the fourth connecting seat. There are two starter lever assemblies, which are symmetrically arranged at both ends of the fourth connecting seat. The non-standard sleeve can be replaced according to the vehicle model, and the center distance of the starter lever assembly can be manually adjusted according to the vehicle model.

[0011] The beneficial effects of this invention are as follows: the structure is novel and unique, two sets of tightening guns are controlled by a PLC system, the same set of tooling is used, and they are connected by gears, so that the same work station is realized. First, the adjusting nut is tightened, and after switching the program through the PLC, the starting torque of the wheel hub is detected, thus achieving flexible production. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the present invention.

[0013] Figure 2 This is a schematic diagram of the first pneumatic rotating mechanism in this invention.

[0014] Figure 3 This is a schematic diagram of the pneumatic lifting mechanism in this invention.

[0015] Figure 4 This is a schematic diagram of the second pneumatic rotating mechanism in this invention.

[0016] Figure 5 This is a schematic diagram of the PLC control system in this invention.

[0017] Figure 6 This is a schematic diagram of the tightening connection mechanism in this invention.

[0018] Figure 7 This is a schematic diagram of the non-standard sleeve assembly in this invention.

[0019] List of reference numerals in the attached diagram: 1-First pneumatic rotating mechanism, 11-First connecting seat, 12-First pneumatic brake cylinder, 13-Rotating shaft, 14-Seat belt, 2-Pneumatic lifting mechanism, 21-Column, 22-Lifting cylinder, 23-First connecting shaft, 24-Second connecting seat, 3-Second pneumatic rotating mechanism, 31-Third connecting seat, 32-Second pneumatic brake cylinder, 33-Starting handle, 4-PLC control system, 41-PLC controller, 42-Connecting bracket, 5-Tightening connecting mechanism, 51-Second connecting shaft, 52-Tightening gun, 53-Gear assembly, 6-Non-standard sleeve assembly, 61-Fourth connecting seat, 62-Non-standard sleeve, 63-Starting lever assembly. Detailed Implementation

[0020] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0021] like Figure 1 As shown, this invention provides a passenger vehicle axle adjusting nut tightening detection mechanism, comprising a first pneumatic rotating mechanism 1, a pneumatic lifting mechanism 2, a second pneumatic rotating mechanism 3, a PLC control system 4, a tightening connection mechanism 5, and a non-standard sleeve assembly 6. The first pneumatic rotating mechanism 1 is connected to a trolley and can rotate 360°, and is braked in the working state. The pneumatic lifting mechanism 2 is mounted on the first pneumatic rotating mechanism 1 and can move vertically. The second pneumatic rotating mechanism 3 is mounted on the pneumatic lifting mechanism 2 and can rotate horizontally, and is braked in the working state. The PLC control system 4 is mounted on the second pneumatic rotating mechanism 3 and is used to control the real-time switching of the tightening gun. The tightening connection mechanism 5 is mounted on the second pneumatic rotating mechanism 3 and is connected by gears to switch the tightening detection position. The non-standard sleeve assembly 6 is mounted on the tightening connection mechanism 5 and is used to tighten the axle adjusting nut and detect the starting torque of the wheel hub.

[0022] like Figure 2 As shown, the first pneumatic rotating mechanism 1 includes a first connecting seat 11, a first pneumatic brake cylinder 12, a rotating shaft 13, and a safety belt 14. The first pneumatic brake cylinder 12, the rotating shaft 13, and the rotating shaft 14 are arranged sequentially from top to bottom and are located in the middle of the first connecting seat 11. The first connecting seat 11, the first pneumatic brake cylinder 12, and the rotating shaft 13 are bolted together, enabling 360° rotation. The safety belt 14 is suspended from the bottom of the first connecting seat 11 for protection.

[0023] like Figure 3 As shown, the pneumatic lifting mechanism 2 is located below the pneumatic rotating mechanism 1 and includes a column 21, a lifting cylinder 22, a first connecting shaft 23, and a second connecting seat 24. The column 21 is located below the rotating shaft 13, the lifting cylinder 22 is located on one side of the column 21, and the first connecting shaft 23 is located in the lower section of the column 21 and can move vertically. Its lower end is bolted to the second connecting seat 24.

[0024] like Figure 4 As shown, the second pneumatic rotating mechanism 3 includes a third connecting seat 31, a second pneumatic brake cylinder 32, and a starting handle 33. The front end of the third connecting seat 31 is connected to the bottom of the second connecting seat 24, and the second pneumatic brake cylinder 32 is arranged below the rear end. The starting handle 33 is placed on the side of the second pneumatic brake cylinder 32 and is used to control the tightening start and stop.

[0025] like Figure 5 As shown, the PLC control system 4 includes a PLC controller 41 and a connecting bracket 42. The PLC controller 41 is fixed to the upper end of the connecting bracket 42 by bolts and is used to control the switching of the tightening sequence. The lower end of the connecting bracket 42 is installed on the third connecting seat 31.

[0026] like Figure 6 As shown, the tightening connection mechanism 5 includes a second connecting shaft 51, two sets of tightening guns 52, and a gear assembly 53. There are multiple second connecting shafts 51, which are arranged around the two sets of tightening guns 52. The gear assembly 53 is installed in cooperation with the front end of the two sets of tightening guns 52. The tightening guns are controlled by the program of the PLC control system 4. The two sets of tightening guns 52 switch to tighten the bolts and detect the starting torque, and are connected to the front tooling through the gear assembly 53.

[0027] like Figure 7 As shown, the non-standard sleeve assembly 6 includes a fourth connecting seat 61, a non-standard sleeve 62, and a starter lever assembly 63. The non-standard sleeve 62 is located at the front center of the fourth connecting seat 61. There are two starter lever assemblies 63, which are symmetrically arranged at both ends of the fourth connecting seat 61. The non-standard sleeve 62 can be replaced according to the vehicle model, and the center distance of the starter lever assembly 63 can be manually adjusted according to the vehicle model.

[0028] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A passenger vehicle axle adjusting nut tightening detection mechanism, characterized in that: It consists of a first pneumatic rotating mechanism (1), a pneumatic lifting mechanism (2), a second pneumatic rotating mechanism (3), a PLC control system (4), a tightening connection mechanism (5), and a non-standard sleeve assembly (6); the first pneumatic rotating mechanism (1) is connected to a small trolley, which can rotate 360° and brake in the working state; the pneumatic lifting mechanism (2) is installed on the first pneumatic rotating mechanism (1) and can move vertically; the second pneumatic rotating mechanism (3) is installed on the pneumatic lifting mechanism (2) and can rotate horizontally and brake in the working state; the PLC control system (4) is installed on the second pneumatic rotating mechanism (3) and is used to control the real-time switching of the tightening gun; the tightening connection mechanism (5) is installed on the second pneumatic rotating mechanism (3) and is connected by gears to switch the tightening detection position; the non-standard sleeve assembly (6) is installed on the tightening connection mechanism (5) and is used to tighten the center bridge adjusting nut and The starting torque of the wheel hub is detected; the tightening connection mechanism (5) includes a second connecting shaft (51), two sets of tightening guns (52) and a gear assembly (53). There are multiple second connecting shafts (51) and they are arranged around the two sets of tightening guns (52). The gear assembly (53) is installed in cooperation with the front end of the two sets of tightening guns (52). The tightening guns are controlled by the program of the PLC control system (4). The two sets of tightening guns (52) switch to tighten the bolts and detect the starting torque, and are connected to the front end tooling through the gear assembly (53); the non-standard sleeve assembly (6) includes a fourth connecting seat (61), a non-standard sleeve (62) and a starter lever assembly (63). The non-standard sleeve (62) is placed in the middle of the front end of the fourth connecting seat (61). There are two starter lever assemblies (63) and they are symmetrically arranged at both ends of the fourth connecting seat (61). The non-standard sleeve (62) is replaced according to the vehicle model. The center distance of the starter lever assembly (63) is manually adjusted according to the vehicle model.

2. The passenger vehicle axle adjusting nut tightening detection mechanism according to claim 1, characterized in that: The first pneumatic rotating mechanism (1) includes a first connecting seat (11), a first pneumatic brake cylinder (12), a rotating shaft (13), and a safety belt (14). The first pneumatic brake cylinder (12), the rotating shaft (13), and the rotating shaft (13) are arranged sequentially from top to bottom and placed in the middle of the first connecting seat (11). The first connecting seat (11), the first pneumatic brake cylinder (12), and the rotating shaft (13) are bolted together to achieve 360° rotation. The safety belt (14) is suspended at the bottom of the first connecting seat (11) for protection.

3. The passenger vehicle axle adjusting nut tightening detection mechanism according to claim 2, characterized in that: The pneumatic lifting mechanism (2) is located below the pneumatic rotating mechanism (1) and includes a column (21), a lifting cylinder (22), a first connecting shaft (23), and a second connecting seat (24). The column (21) is located below the rotating shaft (13), the lifting cylinder (22) is located on one side of the column (21), and the first connecting shaft (23) is located in the lower section of the column (21) and can move vertically. Its lower end is bolted to the second connecting seat (24).

4. The passenger vehicle axle adjusting nut tightening detection mechanism according to claim 3, characterized in that: The second pneumatic rotating mechanism (3) includes a third connecting seat (31), a second pneumatic brake cylinder (32) and a starting handle (33). The front end of the third connecting seat (31) is connected to the bottom of the second connecting seat (24), and the second pneumatic brake cylinder (32) is arranged below the rear end. The starting handle (33) is placed on the side of the second pneumatic brake cylinder (32) and is used to control the tightening start and stop.

5. The passenger vehicle axle adjusting nut tightening detection mechanism according to claim 4, characterized in that: The PLC control system (4) includes a PLC controller (41) and a connecting bracket (42). The PLC controller (41) is fixed to the upper end of the connecting bracket (42) by bolts and is used to control the switching of the tightening sequence. The lower end of the connecting bracket (42) is installed on the third connecting seat (31).

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