Self-locking mechanism and vehicle comprising same

Abstract

The utility model discloses a kind of self-locking mechanism and the carrier comprising it, including support seat, clamping arm and first drive component, support seat is provided with connecting shaft, connecting shaft is rotatably connected on support seat, first positioning protrusion is provided on connecting shaft, clamping arm is sleeved on the outer surface of connecting shaft, first positioning groove is provided on clamping arm, the position of first positioning groove corresponds with first positioning protrusion and first positioning protrusion is located at the inboard of first positioning groove;The drive end of first drive component is connected with connecting shaft, under the drive of first drive component, connecting shaft moves relative to clamping arm, to make first positioning protrusion disengage first positioning groove or the second positioning protrusion disengage second positioning groove.This application discards the working mode that traditional self-locking clamp relies on power supply or ventilation, does not need to set electrical plug-in device in each work station, reduces electrical circuit laying, pneumatic pipeline installation and related equipment maintenance cost, greatly reduce cost.

Description

Technical Field

[0001] This utility model relates to a self-locking mechanism and a carrier containing the same, belonging to the technical field of automotive processing equipment. Background Technology

[0002] A self-locking mechanism is a mechanism with two strokes, forward and reverse. No matter how large the driving force applied to the reverse stroke is, the mechanism cannot move. This type of mechanism that self-locks during the reverse stroke is called a self-locking mechanism.

[0003] During the assembly of automobiles, the moving carrier needs to be locked. However, the existing self-locking clamps require electricity or air to lock. In the assembly line, each station needs to have an electrical connection. The products need to be clamped multiple times in the assembly line, which is costly, complicated, and increases the processing error of the products. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a self-locking mechanism and a carrier containing the same that does not rely on electricity or air supply.

[0005] To achieve the aforementioned objectives, the technical solution adopted by this utility model includes:

[0006] This utility model discloses a self-locking mechanism, including a support base, a clamping arm, and a first driving assembly. The support base has a connecting shaft rotatably connected to it, and the connecting shaft has a first positioning protrusion or a second positioning groove. The clamping arm is sleeved on the outer surface of the connecting shaft, and the clamping arm has a first positioning groove or a second positioning protrusion. The first positioning groove corresponds to the position of the first positioning protrusion, and the first positioning protrusion is located inside the first positioning groove; or the second positioning protrusion corresponds to the position of the second positioning groove, and the second positioning protrusion is located inside the second positioning groove. The driving end of the first driving assembly is connected to the connecting shaft. Under the drive of the first driving assembly, the connecting shaft moves relative to the clamping arm, causing the first positioning protrusion to disengage from the first positioning groove or the second positioning protrusion to disengage from the second positioning groove.

[0007] Furthermore, a spring is provided on the outer surface of the connecting shaft, and the spring is disposed between the support and the first drive assembly. The spring is used at least to drive the connecting shaft to reset.

[0008] Furthermore, the support base is equipped with a bearing, and the support base and the connecting shaft are rotatably connected through the bearing.

[0009] Furthermore, multiple connecting shafts are provided, and the multiple connecting shafts are arranged along the axial direction of the connecting shafts, with adjacent connecting shafts connected by a coupling.

[0010] In another aspect, this utility model also discloses a carrier, including a self-locking mechanism and a carrier plate. The support base is fixedly connected to the carrier plate, and a second drive assembly is provided at one end of the connecting shaft. The second drive assembly is used to drive the connecting shaft to rotate, and the second drive assembly is disposed on the first drive assembly.

[0011] Furthermore, the second drive assembly has a connecting rod at its drive end, a connecting sleeve at one end of the connecting shaft, the connecting rod inside the connecting sleeve, a positioning pin on the connecting rod, a positioning hole on the connecting sleeve, and the positioning pin inside the positioning hole to fix the connecting rod and the connecting sleeve.

[0012] Furthermore, the support base, connecting shaft, clamping arm, and second drive assembly are symmetrically arranged in two sets, with the two second drive assemblies arranged on the same connecting plate, and the drive end of the first drive assembly is fixedly connected to the connecting plate.

[0013] Compared with the prior art, the advantages of this utility model include:

[0014] 1) The self-locking mechanism provided by this utility model abandons the traditional self-locking clamp's reliance on electricity or air supply, eliminating the need for electrical plug-in devices at each workstation and reducing costs associated with electrical wiring, pneumatic pipe installation, and related equipment maintenance. Simultaneously, the streamlined system reduces energy consumption, further saving long-term operating costs, and lowering vehicle costs by approximately 80%.

[0015] 2) The self-locking mechanism provided by this utility model eliminates the need for complex electrical plug-in operations, greatly simplifying the process of automobile assembly line, reducing the number of operation steps for workers in the clamping stage, and improving work efficiency; it also reduces the troubleshooting and maintenance steps that may occur due to electrical connections or ventilation systems, making the production process smoother and more efficient.

[0016] 3) The self-locking mechanism provided by this utility model can be stably locked with only one clamping, which can ensure the positional accuracy of automotive parts during the assembly process, avoid clamping errors caused by multiple clamping, and improve the yield rate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a self-locking mechanism provided in a typical embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the connecting shaft provided in a typical embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the clamping arm provided in a typical embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram showing the connection of two sets of locking mechanisms provided in a typical embodiment of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the vehicle provided in a typical embodiment of this utility model;

[0023] Figure 6 This is a schematic diagram of the connection between the second drive component and the connecting shaft provided in a typical embodiment of this utility model;

[0024] Explanation of reference numerals in the attached drawings: 1. Support base; 2. Connecting shaft; 3. Second positioning groove; 4. Clamping arm; 5. Second positioning protrusion; 6. First drive assembly; 7. Spring; 9. Coupling; 10. Carrier plate; 11. Second drive assembly; 12. Connecting rod; 13. Connecting sleeve; 14. Positioning pin; 16. Connecting plate. Detailed Implementation

[0025] In view of the shortcomings of the prior art, the inventor of this case, through long-term research and extensive practice, has come up with the technical solution of this utility model. The following will further explain the technical solution, its implementation process, and its principles.

[0026] like Figure 1 As shown, this utility model discloses a self-locking mechanism, including a support base 1, a clamping arm 4, and a first drive assembly 6. The first drive assembly 6 may include a cylinder, a motor, and a lead screw. In this embodiment, the first drive assembly 6 includes a cylinder, and the driving end of the cylinder is connected to the connecting shaft 2. Under the drive of the cylinder, the connecting shaft 2 moves relative to the clamping arm 4 along the axial direction of the connecting shaft 2.

[0027] The support base 1 is provided with a connecting shaft 2, which is rotatably connected to the support base 1. Specifically, in this embodiment, the support base 1 is provided with a bearing, and the support base 1 and the connecting shaft 2 are rotatably connected through the bearing.

[0028] like Figure 2 , Figure 3As shown, the connecting shaft 2 is provided with a first positioning protrusion or a second positioning groove 3; the clamping arm 4 is sleeved on the outer surface of the connecting shaft 2, and the clamping arm 4 is provided with a first positioning groove or a second positioning protrusion 5. The first positioning groove corresponds to the position of the first positioning protrusion and the first positioning protrusion is located inside the first positioning groove; or the second positioning protrusion 5 corresponds to the position of the second positioning groove 3 and the second positioning protrusion 5 is located inside the second positioning groove 3; the driving end of the first driving component 6 is connected to the connecting shaft 2. Under the drive of the first driving component 6, the connecting shaft 2 moves relative to the clamping arm 4 so that the first positioning protrusion disengages from the first positioning groove or the second positioning protrusion 5 disengages from the second positioning groove.

[0029] Based on the above, in order to enable the connecting shaft 2 to reset without external force, a spring 7 is provided on the outer surface of the connecting shaft 2. The spring 7 is located between the support base 1 and the first drive assembly 6, and the spring 7 is used at least to drive the connecting shaft 2 to reset.

[0030] When the clamping arm 4 needs to loosen or clamp the workpiece, the first drive assembly 6 drives the connecting shaft 2 to move axially relative to the clamping arm 4, causing the positioning protrusion to be misaligned with the positioning groove. Under the action of external force, the clamping arm 4 rotates in the correct direction. When the clamping arm 4 rotates to the correct position, the drive end of the first drive assembly 6 is reset. At this time, the connecting shaft 2 is not pushed out by external force. Under the action of the spring 7, the connecting shaft 2 is reset, so that the position of the positioning protrusion corresponds to the position of the positioning groove. At this time, the clamping arm 4 cannot rotate and is self-locked.

[0031] This application eliminates the traditional self-locking clamp's reliance on electricity or air supply, removing the need for electrical plug-in devices at each workstation and reducing costs associated with electrical wiring, pneumatic piping installation, and related equipment maintenance. Simultaneously, the streamlined system lowers energy consumption, further saving long-term operating costs, with vehicle costs reduced by approximately 80%.

[0032] This application eliminates the need for complex electrical plug-in operations, greatly simplifying the automotive assembly line process, reducing the number of steps workers need to take during clamping, and improving work efficiency. It also reduces the troubleshooting and repair steps that may arise from faults in electrical connections or ventilation systems, making the production process smoother and more efficient.

[0033] This application can achieve stable locking with only one clamping, which can ensure the positional accuracy of automotive parts during the assembly process, avoid clamping errors caused by multiple clamping, and improve the yield rate.

[0034] In some implementation cases, such as Figure 4As shown, multiple connecting shafts 2 are provided, arranged along the axial direction of the connecting shaft 2. Adjacent connecting shafts 2 are connected by couplings 9, which can clamp long automotive parts. The multiple connecting shafts 2 rotate synchronously.

[0035] like Figure 5 As shown, another aspect of this utility model discloses a carrier, including a self-locking mechanism and a carrier plate 10. The support base 1 is fixedly connected to the carrier plate 10. A second drive assembly 11 is provided at one end of the connecting shaft 2. The second drive assembly 11 is at least used to drive the connecting shaft 2 to rotate. The second drive assembly 11 is disposed on the first drive assembly 6. The second drive assembly 11 may include a rotary cylinder or a motor. In this embodiment, the second drive assembly 11 includes a rotary cylinder. The drive end of the rotary cylinder is connected to the connecting shaft 2. Under the drive of the rotary cylinder, the connecting shaft 2 rotates, thereby driving the clamping arm 4 to rotate, so as to clamp or release the workpiece.

[0036] In some implementation cases, such as Figure 6 As shown, the second drive assembly 11 has a connecting rod 12 at its drive end, and a connecting sleeve 13 at one end of the connecting shaft 2. The connecting rod 12 is located inside the connecting sleeve 13. A positioning pin 14 is provided on the connecting rod 12, and a positioning hole is provided on the connecting sleeve 13. The positioning pin 14 is located inside the positioning hole to fix the connecting rod 12 and the connecting sleeve 13.

[0037] In some implementations, the support base 1, connecting shaft 2, clamping arm 4, and second drive assembly 11 are symmetrically arranged in two sets. The two second drive assemblies 11 are mounted on the same connecting plate 16, and the drive end of the first drive assembly 6 is fixedly connected to the connecting plate 16. This allows for simultaneous clamping and fixing of both sides of the workpiece, resulting in more stable workpiece fixation.

[0038] It should be understood that the above embodiments are merely illustrative of the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A self-locking mechanism, characterized in that: include A support base, wherein a connecting shaft is provided on the support base, the connecting shaft is rotatably connected to the support base, and a first positioning protrusion or a second positioning groove is provided on the connecting shaft; A clamping arm is sleeved on the outer surface of the connecting shaft. The clamping arm is provided with a first positioning groove or a second positioning protrusion. The first positioning groove and the first positioning protrusion are positioned correspondingly, and the first positioning protrusion is located inside the first positioning groove; or the second positioning protrusion and the second positioning groove are positioned correspondingly, and the second positioning protrusion is located inside the second positioning groove. A first driving component, the driving end of the first driving component is connected to a connecting shaft, and the connecting shaft moves relative to the clamping arm under the drive of the first driving component, so that the first positioning protrusion disengages from the first positioning groove or the second positioning protrusion disengages from the second positioning groove.

2. The self-locking mechanism according to claim 1, characterized in that: A spring is provided on the outer surface of the connecting shaft, and the spring is disposed between the support and the first drive assembly. The spring is used at least to drive the connecting shaft to reset.

3. The self-locking mechanism according to claim 1, characterized in that: The support base is equipped with a bearing, and the support base and the connecting shaft are rotatably connected through the bearing.

4. A self-locking mechanism according to claim 1, characterized in that: The connecting shafts are provided in multiple ways, and the multiple connecting shafts are arranged along the axial direction of the connecting shafts. Two adjacent connecting shafts are connected by a coupling.

5. A vehicle, characterized in that: The self-locking mechanism according to any one of claims 1-4 includes a carrier plate, the support base is fixedly connected to the carrier plate, and a second drive component is provided at one end of the connecting shaft. The second drive component is at least used to drive the connecting shaft to rotate, and the second drive component is disposed on the first drive component.

6. A vehicle according to claim 5, characterized in that: The second drive assembly has a connecting rod at its drive end, a connecting sleeve at one end of the connecting shaft, the connecting rod inside the connecting sleeve, a positioning pin on the connecting rod, and a positioning hole on the connecting sleeve. The positioning pin is located inside the positioning hole to fix the connecting rod and the connecting sleeve.

7. A vehicle according to claim 5, characterized in that: The support base, connecting shaft, clamping arm, and second drive assembly are symmetrically arranged in two sets. The two second drive assemblies are arranged on the same connecting plate, and the drive end of the first drive assembly is fixedly connected to the connecting plate.

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