Four-connecting-rod self-locking horizontal pressing mechanism for vehicle body part machining

Abstract

The utility model relates to the technical field of self-locking pressing devices, in particular to a four-connecting-rod self-locking horizontal pressing mechanism for machining automobile body parts, which comprises a mounting base (10), a connecting rod (20), an air cylinder (30), a connector (40), a movable arm (50) and a pressing block (60). The first hinged end of the connector (40) is hinged to the first hinged end of the connecting rod (20) and a piston rod of the air cylinder (30), the second hinged end of the connecting rod (20) is hinged to the installation base (10), the second hinged end of the connector (40) is hinged to the hinged end of the movable arm (50), and the installation end of the movable arm (50) is provided with the pressing block (60). The air cylinder drives the connecting rod and the connector to rotate and simultaneously drives the movable arm to move horizontally, so that the pressing block at the mounting end of the movable arm presses a workpiece, horizontal pressing of a machined plate is achieved, and jumping in the horizontal direction is prevented.

Description

Technical Field

[0001] This utility model relates to the technical field of self-locking clamping devices, and in particular to a four-bar self-locking horizontal clamping mechanism for processing body parts. Background Technology

[0002] Modern automobile manufacturing uses automated production lines, and in the welding production lines, different clamping devices are needed for different processing objects.

[0003] Chinese utility model patent CN218051017U discloses a four-bar self-locking clamping mechanism for automobile processing, used for clamping automobile panels. It includes a mounting plate and a self-locking module and a clamping module connected to the mounting plate. The self-locking module includes a clamping cylinder and a connecting rod frame. The connecting rod frame is located at the top of the mounting plate, with its bottom end hinged to the mounting plate. The clamping cylinder is located on one side of the mounting plate, with its piston rod extending upwards and its top end hinged to one side of the connecting rod frame. The clamping module includes a movable arm and a connecting plate. The movable arm is located at the top of the mounting plate, with its rear half inside the connecting rod frame. The rear end of the movable arm is hinged to the top of the mounting plate, and a clamping block is located at the front end of the movable arm. The connecting plate is located inside the connecting rod frame, with one end hinged to the middle of the movable arm and the other end hinged to the connecting rod frame. It can achieve vertical clamping of the processed board material to prevent vertical jumping, but it is powerless to perform horizontal clamping of the same board material.

[0004] Therefore, existing technologies need to be improved and enhanced. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a four-bar self-locking horizontal clamping mechanism for processing body parts.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A four-bar self-locking horizontal clamping mechanism for processing body parts includes a mounting base, a connecting rod, a cylinder, a connector, a movable arm, and a clamping block. The first hinged end of the connector is hinged to the first hinged end of the connecting rod and the piston rod of the cylinder. The second hinged end of the connecting rod is hinged to the mounting base. The second hinged end of the connector is hinged to the hinged end of the movable arm. The clamping block is provided at the mounting end of the movable arm.

[0008] As a further embodiment of this invention, the clamping block is detachably connected to the movable arm.

[0009] As a further embodiment of this invention, the mounting end of the movable arm is provided with a plurality of mounting holes.

[0010] As a further embodiment of this utility model, the mounting base includes a first support plate, a second support plate, and two connecting plates connecting the first support plate and the second support plate. The first support plate and the second support plate are arranged opposite to each other, and a mounting plate is provided on the side of the first support plate facing the second support plate.

[0011] As a further embodiment of this invention, the second hinged end of the connecting rod is hinged to the mounting plate.

[0012] As a further embodiment of this utility model, the cylinder is mounted on a cylinder mounting plate, and the cylinder mounting plate is fixed to the mounting plate.

[0013] As a further embodiment of this invention, the movable arm is mounted on the second support plate via a linear bearing.

[0014] As a further embodiment of this utility model, the first hinge end of the connector has two first hinge arms, and the hinge end of the connecting rod and the piston rod of the cylinder are hinged together with the two first hinge arms through a first hinge shaft; the second hinge end of the connector has two second hinge arms, and the hinge end of the movable arm is hinged together with the two second hinge arms through a second hinge shaft.

[0015] As a further embodiment of this utility model, the bottom of both the first support plate and the second support plate are provided with a plurality of mounting holes.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] Due to the above structural design, the first hinge end of the connector is hinged to the hinge end of the connecting rod and the piston rod of the cylinder. The fixed end of the connecting rod is fixed to the mounting base. The second hinge end of the connector is hinged to the hinge end of the movable arm. The mounting end of the movable arm is provided with a clamping block. The cylinder drives the connecting rod and the connector to rotate, and at the same time drives the movable arm to move horizontally, so that the clamping block on the mounting end of the movable arm clamps the workpiece, thereby achieving horizontal clamping of the processed plate and preventing horizontal jump. Attached Figure Description

[0018] Appendix Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0019] The labels in the diagram are as follows:

[0020] 10-Mounting base, 20-Connecting rod, 30-Cylinder, 40-Connector, 50-Moving arm, 60-Clamping block;

[0021] 11-First support plate, 12-Second support plate, 13-Connecting plate, 14-Mounting plate, 15-Mounting hole;

[0022] 41-First hinge arm, 42-Second hinge arm, 43-First hinge shaft, 44-Second hinge shaft;

[0023] 31-Cylinder mounting plate;

[0024] 51 - Linear bearing. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present 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 only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] The features and performance of this utility model will be further described in detail below with reference to the embodiments. Example

[0029] like Figure 1 As shown, this application discloses a four-bar self-locking horizontal clamping mechanism for processing body parts, including a mounting base 10, a connecting rod 20, a cylinder 30, a connector 40, a movable arm 50, and a clamping block 60. The first hinge end of the connector 40 is hinged to the first hinge end of the connecting rod 20 and the piston rod of the cylinder 30. The second hinge end of the connecting rod 20 is hinged to the mounting base 10. The second hinge end of the connector 40 is hinged to the hinge end of the movable arm 50. The clamping block 60 is provided at the mounting end of the movable arm 50. With the above structural design, when this application is used, the mounting base 10 is first fixedly installed on one side of the workpiece. The cylinder 30 is pushed upward, causing the connecting rod 20 and the connector 40 to rotate clockwise and counterclockwise towards the mounting base 10 respectively, while driving the movable arm 50 to move horizontally. This causes the clamping block 4 at the mounting end of the movable arm 50 to horizontally clamp the workpiece, preventing the workpiece from jumping horizontally. When the cylinder 30 moves to a certain stroke, the connecting rod 20, the movable arm 50 and the connecting head 40 will reach a dead point position, thereby achieving a self-locking function. This enables horizontal clamping of the workpiece, preventing horizontal runout and improving machining accuracy. When the workpiece is released, the piston rod of the cylinder 30 retracts, pulling the connecting rod 20 and the connecting head 40 to rotate clockwise and counterclockwise simultaneously. At the same time, the connecting rod 20 drives the movable arm 50 to move horizontally, thereby releasing the workpiece.

[0030] Specifically, the clamping block 60 is detachably connected to the movable arm 50. By changing the clamping block 60, different workpieces can be clamped. For different workpieces, only the corresponding clamping block 60 needs to be matched, which achieves the effect of saving space and saving costs.

[0031] Specifically, the mounting end of the movable arm 50 is provided with several mounting holes to facilitate adjustment of the position of the clamping block 60.

[0032] Specifically, the mounting base 10 includes a first support plate 11, a second support plate 12, and two connecting plates 13 connecting the first support plate 11 and the second support plate 12. The first support plate 11 and the second support plate 12 are arranged opposite to each other. A mounting plate 14 is provided on the side of the first support plate 11 facing the second support plate 12, thereby the second hinge end of the connecting rod 20 is hinged to the mounting plate 14. The cylinder 30 is mounted on the cylinder mounting plate 31, and the cylinder mounting plate 31 is fixed on the mounting plate 14, providing a stable foundation for the cylinder 30, reducing the impact of external vibration or impact on the operation of the cylinder 30, and thus improving the stability of the entire system.

[0033] Specifically, the movable arm 50 is mounted on the second support plate 12 via a linear bearing 51. The smooth and precise linear motion trajectory provided by the linear bearing 51 ensures that the movable arm 50 maintains a high degree of accuracy during movement.

[0034] Specifically, the first hinge end of the connector 40 has two first hinge arms 41, and the hinge end of the connecting rod 20 and the piston rod of the cylinder 30 are hinged together with the two first hinge arms 41 through a first hinge shaft 43; the second hinge end of the connector 40 has two second hinge arms 42, and the hinge end of the movable arm 50 is hinged together with the two second hinge arms 42 through a second hinge shaft 44.

[0035] Specifically, the bottom of both the first support plate 11 and the second support plate 12 are provided with a number of mounting holes 15 to facilitate the connection of the mounting base 10 with external devices.

[0036] In summary, this utility model, through the above-described structural design, overcomes the shortcomings of the prior art and features a reasonable structure, strong targeting, and high processing precision.

[0037] The above-described embodiments are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A four-bar self-locking horizontal clamping mechanism for machining body parts, characterized in that: The device includes a mounting base (10), a connecting rod (20), a cylinder (30), a connector (40), a movable arm (50), and a clamping block (60). The first hinge end of the connector (40) is hinged to the first hinge end of the connecting rod (20) and the piston rod of the cylinder (30). The second hinge end of the connecting rod (20) is hinged to the mounting base (10). The second hinge end of the connector (40) is hinged to the hinge end of the movable arm (50). The clamping block (60) is provided at the mounting end of the movable arm (50).

2. The four-link self-locking horizontal clamping mechanism for processing body parts according to claim 1, characterized in that: The clamping block (60) is detachably connected to the movable arm (50).

3. The four-link self-locking horizontal clamping mechanism for processing body parts according to claim 2, characterized in that: The mounting end of the movable arm (50) is provided with several mounting holes.

4. The four-link self-locking horizontal clamping mechanism for processing body parts according to claim 3, characterized in that: The mounting base (10) includes a first support plate (11), a second support plate (12), and two connecting plates (13) connecting the first support plate (11) and the second support plate (12). The first support plate (11) and the second support plate (12) are arranged opposite to each other, and a mounting plate (14) is provided on the side of the first support plate (11) facing the second support plate (12).

5. The four-link self-locking horizontal clamping mechanism for processing body parts according to claim 4, characterized in that: The second hinge end of the connecting rod (20) is hinged to the mounting plate (14).

6. The four-link self-locking horizontal clamping mechanism for processing body parts according to claim 5, characterized in that: The cylinder (30) is mounted on the cylinder mounting plate (31), and the cylinder mounting plate (31) is fixed on the mounting plate (14).

7. The four-link self-locking horizontal clamping mechanism for processing body parts according to claim 6, characterized in that: The movable arm (50) is mounted on the second support plate (12) via a linear bearing (51).

8. The four-link self-locking horizontal clamping mechanism for processing body parts according to claim 7, characterized in that: The first hinge end of the connector (40) has two first hinge arms (41), and the hinge end of the connecting rod (20) and the piston rod of the cylinder (30) are hinged together with the two first hinge arms (41) through a first hinge shaft (43); the second hinge end of the connector (40) has two second hinge arms (42), and the hinge end of the movable arm (50) is hinged together with the two second hinge arms (42) through a second hinge shaft (44).

9. The four-link self-locking horizontal clamping mechanism for processing body parts according to claim 8, characterized in that: The bottom of both the first support plate (11) and the second support plate (12) is provided with several mounting holes.

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