Gear rotation switching mechanism

Abstract

The utility model discloses a gear rotation switching mechanism, the device includes switching unit, and the drive rack in switching unit is arranged in the one side of drive cylinder, and the output shaft of drive cylinder is fixed with drive rack assembly, and the rotation gear is arranged in the one side of drive rack, and the rotation gear is engaged with drive rack, the rotation gear top is provided with car type positioning mechanism, and car type positioning mechanism includes car type positioning mechanism and car type positioning mechanism, drive cylinder, rotation gear and drive rack are used for switching positioning mechanism according to car type, and the device adopts the switching of positioning mechanism to realize gear and rack drive combination rotation mode, compared with the switching mode of the linear movement of the slide rail in the prior art, need not reserve longer linear movement track space, reduced the requirement to the installation space, improved the flexibility of production line layout, is favorable for the efficient use of workshop space.

Description

Technical Field

[0001] This utility model relates to the field of automotive manufacturing tooling technology, and in particular to a gear rotation switching mechanism. Background Technology

[0002] In today's rapidly developing automotive manufacturing industry, the pace of vehicle model updates and iterations is constantly accelerating, and the need for production lines compatible with multiple vehicle types has become the norm. Welding fixtures, as key equipment in the automotive production process, account for a significant portion of the overall production line cost. In actual multi-model production processes, shared tooling needs to ensure that tooling switching does not affect the normal production progress and quality of each model. In existing technologies, most tooling switching for multiple models is achieved by using linear sliding rail movement. However, linear sliding rail movement requires a large installation space and needs to reserve a sufficiently long linear movement trajectory. In the case of limited production workshop space, this greatly restricts the flexibility of production line layout and is not conducive to the efficient use of workshop space, thus having limitations. Utility Model Content

[0003] The purpose of this invention is to provide a gear rotation switching mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a gear rotation switching mechanism, comprising a switching unit, wherein the switching unit includes a drive cylinder, a rotating gear, a drive rack, and a vehicle positioning mechanism; The drive rack is disposed on one side of the drive cylinder, the output shaft of the drive cylinder is fixedly assembled with the drive rack, and the rotating gear is disposed on one side of the drive rack and meshes with the drive rack; A vehicle model positioning mechanism is provided above the rotating gear. The vehicle model positioning mechanism includes a vehicle model positioning mechanism and a vehicle model positioning mechanism. The drive cylinder, rotating gear, and drive rack are used to switch the positioning mechanism according to the vehicle model.

[0005] Preferably, a fixed support plate is fixedly mounted on one side of the drive cylinder.

[0006] Preferably, a guide rail slider is fixedly mounted on the fixed support plate, and a rack mounting plate is slidably connected to the outer surface of the guide rail slider. The drive rack is fixedly mounted on the rack mounting plate.

[0007] Preferably, a connector is fixedly mounted on one side of the rack mounting connecting plate.

[0008] Preferably, a base is provided below the rotating gear, the base is rotatably connected to the rotating gear, and a rotating shaft is fixedly mounted on the top of the rotating gear.

[0009] Preferably, a vehicle model positioning block is fixedly mounted on one side of the fixed support plate, and a vehicle model positioning detection probe is fixedly mounted on the vehicle model positioning block.

[0010] Preferably, a vehicle model positioning block is fixedly mounted on the other side of the fixed support plate, and a vehicle model positioning detection probe is fixedly mounted on the vehicle model positioning block.

[0011] Preferably, a mounting plate is fixedly mounted on the rotating shaft, and the vehicle positioning mechanism and the vehicle positioning mechanism are fixedly mounted on the mounting plate.

[0012] The technical effects and advantages of this utility model are as follows: This device uses a combination of gear and rack transmission and rotation to switch the positioning mechanism. Compared with the existing technology of linear movement of slide rails, it does not require a long linear movement trajectory space, which reduces the requirements for installation space, improves the flexibility of production line layout, and is conducive to the efficient use of workshop space. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] In the diagram: 1. Drive cylinder; 2. Fixed support plate; 3. Guide rail slider; 4. Connector; 5. Rack mounting plate; 6. Rotary gear; 7. Rotary shaft; 8. Drive rack; 9. Vehicle model 1 positioning limit block; 10. Vehicle model 1 positioning detection probe; 11. Vehicle model 2 positioning detection probe; 12. Vehicle model 2 positioning limit block; 13. Mounting plate; 14. Vehicle model 2 positioning mechanism; 15. Vehicle model 1 positioning mechanism. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] This utility model provides, for example Figure 1 The gear rotation switching mechanism shown includes a switching unit, which includes a drive cylinder 1, a rotating gear 6, a drive rack 8, and a vehicle positioning mechanism. The drive rack 8 is located on one side of the drive cylinder 1, and the output shaft of the drive cylinder 1 is fixedly assembled with the drive rack 8. The rotating gear 6 is located on one side of the drive rack 8 and meshes with the drive rack 8. A vehicle model positioning mechanism is located above the rotating gear 6. The vehicle model positioning mechanism includes a vehicle model 2 positioning mechanism 14 and a vehicle model 1 positioning mechanism 15. The drive cylinder 1, the rotating gear 6, and the drive rack 8 are used to switch the positioning mechanism according to the vehicle model.

[0017] Example 1: In this example, during actual use, when it is necessary to switch to the positioning mechanism of vehicle model 1, the drive cylinder 1 is activated. The output shaft of the drive cylinder 1 pushes the drive rack 8 to move, which in turn drives the rotating gear 6 to rotate. The rotating gear 6 drives the mounting plate 13 to rotate via the rotating shaft 7, and the positioning mechanism 15 of vehicle model 1 on the mounting plate 13 rotates to the working position accordingly. During the movement of the drive rack 8, the rack mounting connecting plate 5 slides along the guide rail slider 3. When the rack mounting connecting plate 5 moves to contact the positioning limit block 9 of vehicle model 1, the positioning detection probe 10 of vehicle model 1 detects that the rack mounting connecting plate 5 is in position and then sends a signal to the control unit. The control unit controls the drive cylinder 1 to stop working, completing the switching of the positioning mechanism 15 of vehicle model 1. When switching to the positioning mechanism of vehicle model 2 is required, the output shaft of the control drive cylinder 1 retracts, causing the drive rack 8 to move in the opposite direction. The drive rack 8 drives the rotating gear 6 to rotate in the opposite direction, and the rotating gear 6 drives the mounting plate 13 to rotate in the opposite direction via the rotating shaft 7. The positioning mechanism 14 of vehicle model 2 on the mounting plate 13 rotates to the working position. Similarly, during the reverse movement of the drive rack 8, the rack mounting connecting plate 5 slides in the opposite direction along the guide rail slider 3. When the rack mounting connecting plate 5 moves to contact the positioning limit block 12 of vehicle model 2, the positioning detection probe 11 of vehicle model 2 detects that the rack mounting connecting plate 5 is in position and sends a signal to the control unit. The control unit controls the drive cylinder 1 to stop working, completing the switching of the positioning mechanism 14 of vehicle model 2.

[0018] like Figure 1 The gear rotation switching mechanism shown includes a switching unit, which comprises a drive cylinder 1, a rotating gear 6, a drive rack 8, and a vehicle positioning mechanism. The drive rack 8 is located on one side of the drive cylinder 1, and the output shaft of the drive cylinder 1 is fixedly assembled with the drive rack 8. The rotating gear 6 is located on one side of the drive rack 8 and meshes with the drive rack 8. A vehicle model positioning mechanism is located above the rotating gear 6. The vehicle model positioning mechanism includes a vehicle model 2 positioning mechanism 14 and a vehicle model 1 positioning mechanism 15. The drive cylinder 1, the rotating gear 6, and the drive rack 8 are used to switch the positioning mechanism according to the vehicle model.

[0019] A fixed support plate 2 is fixedly mounted on one side of the drive cylinder 1. A guide rail slider 3 is fixedly mounted on the fixed support plate 2, and a rack mounting plate 5 is slidably connected to the outer surface of the guide rail slider 3. A drive rack 8 is fixedly mounted on the rack mounting plate 5. A connector 4 is fixedly mounted on one side of the rack mounting plate 5. A base is provided below the rotating gear 6, and the base is rotatably connected to the rotating gear 6. A rotating shaft 7 is fixedly mounted on the top of the rotating gear 6. A vehicle model 1 positioning limit block 9 is fixedly mounted on one side of the fixed support plate 2, and a vehicle model 1 positioning detection probe 10 is fixedly mounted on the vehicle model 1 positioning limit block 9. A vehicle model 2 positioning limit block 12 is fixedly mounted on the other side of the fixed support plate 2, and a vehicle model 2 positioning detection probe 11 is fixedly mounted on the vehicle model 2 positioning limit block 12. A mounting plate 13 is fixedly mounted on the rotating shaft 7, and a vehicle model 2 positioning mechanism 14 and a vehicle model 1 positioning mechanism 15 are fixedly mounted on the mounting plate 13.

[0020] Example 2: In this example, both the vehicle model 1 arrival detection probe 10 and the vehicle model 2 arrival detection probe 11 are inductive proximity switches. The principle is that the internal high-frequency oscillation circuit generates an alternating magnetic field through the coil at the front end of the probe. When the rack mounting plate 5 does not enter the magnetic field range, the oscillation circuit maintains a stable oscillation state and the output circuit has no signal output. When the drive cylinder 1 moves the rack mounting plate 5 toward the limit block and the metal plate enters the magnetic field induction range, an eddy current effect will be generated in the metal plate. The reverse magnetic field generated by the eddy current will weaken the original oscillation magnetic field, causing the oscillation amplitude of the oscillation circuit to decrease sharply or even stop oscillating. After the detection circuit detects the change in oscillation amplitude, it transmits the signal to the amplification circuit. The amplified signal triggers the output circuit to switch states. This switching signal is transmitted to the PLC control unit of the production line through a wire. After receiving the signal, the PLC control unit immediately sends a command to control the solenoid valve of the drive cylinder 1 to de-energize, and the cylinder piston rod stops moving. At this time, the rack mounting connecting plate 5 makes slight contact with the positioning limit block 9 of model 1 or the positioning limit block 12 of model 2, so as to achieve precise positioning of the positioning mechanism.

[0021] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gear rotation switching mechanism, comprising a switching unit, characterized in that, The switching unit includes a drive cylinder (1), a rotating gear (6), a drive rack (8), and a vehicle positioning mechanism: The drive rack (8) is disposed on one side of the drive cylinder (1), the output shaft of the drive cylinder (1) is fixedly assembled with the drive rack (8), the rotating gear (6) is disposed on one side of the drive rack (8), and the rotating gear (6) meshes with the drive rack (8). A vehicle model positioning mechanism is provided above the rotating gear (6). The vehicle model positioning mechanism includes a vehicle model 2 positioning mechanism (14) and a vehicle model 1 positioning mechanism (15). The drive cylinder (1), the rotating gear (6), and the drive rack (8) are used to switch the positioning mechanism according to the vehicle model.

2. The gear rotation switching mechanism according to claim 1, characterized in that, A fixed support plate (2) is fixedly mounted on one side of the drive cylinder (1).

3. The gear rotation switching mechanism according to claim 2, characterized in that, The fixed support plate (2) is fixedly equipped with a guide rail slider (3), and the outer surface of the guide rail slider (3) is slidably connected to a rack mounting plate (5). The drive rack (8) is fixedly assembled on the rack mounting plate (5).

4. The gear rotation switching mechanism according to claim 3, characterized in that, A connector (4) is fixedly mounted on one side of the rack mounting connecting plate (5).

5. The gear rotation switching mechanism according to claim 1, characterized in that, A base is provided below the rotating gear (6), the base is rotatably connected to the rotating gear (6), and a rotating shaft (7) is fixedly mounted on the top of the rotating gear (6).

6. The gear rotation switching mechanism according to claim 2, characterized in that, A vehicle model 1 positioning limit block (9) is fixedly mounted on one side of the fixed support plate (2), and a vehicle model 1 positioning detection probe (10) is fixedly mounted on the vehicle model 1 positioning limit block (9).

7. A gear rotation switching mechanism according to claim 2, characterized in that, On the other side of the fixed support plate (2), a vehicle model 2 positioning limit block (12) is fixedly mounted, and a vehicle model 2 positioning detection probe (11) is fixedly mounted on the vehicle model 2 positioning limit block (12).

8. A gear rotation switching mechanism according to claim 5, characterized in that, A mounting plate (13) is fixedly mounted on the rotating shaft (7), and the vehicle model 2 positioning mechanism (14) and vehicle model 1 positioning mechanism (15) are fixedly mounted on the mounting plate (13).

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