V-shaped clamping mechanism

Abstract

The utility model discloses a V-shaped clamping mechanism, which belongs to the field of clamps and comprises a support, a supporting seat is arranged on the support, a fixed seat and sliding seats are arranged on the supporting seat, the sliding seats are arranged on two sides of the fixed seat, the sliding seats and the fixed seat are distributed in a triangular shape, the sliding seats slide along connecting lines of the sliding seats and the fixed seat, and the sliding seats are connected with the fixed seat. Transmission wheels are arranged on the fixed seat and the sliding seat, and at least one transmission wheel is in transmission connection with a motor. The utility model aims to provide a V-shaped clamping mechanism which can improve the welding quality.

Description

Technical Field

[0001] The utility model relates to the field of clamps, in particular to a V-shaped clamping mechanism. Background Art

[0002] When welding flanged rings onto circular workpieces, the current process involves securing the two workpieces with a three-jaw chuck. The three-jaw chuck then rotates to rotate the workpieces, completing the welding process. However, due to machining precision and desired shape, the workpiece radius can fluctuate. Since the welding gun remains fixed, the weld seam cannot maintain consistency at the workpiece joint, compromising weld quality. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems and provide a V-shaped clamping mechanism to improve welding quality.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is a V-shaped clamping mechanism, which includes a bracket, a support, a fixed seat and a sliding seat, the sliding seats arranged on both sides of the fixed seat, the sliding seat and the fixed seat arranged in a triangular shape, the sliding seat sliding along the line connecting it and the fixed seat, and the fixed seat and the sliding seat are both provided with transmission wheels, at least one of which is connected to the motor transmission. The fixed seat and the sliding seat are on the same plane, so that all the transmission wheels are also on the same plane. During processing, the transmission wheels support the side wall of the workpiece, and the sliding seat moves with the workpiece, ensuring that the weld seam and the workpiece connection remain consistent, thereby improving the welding quality.

[0005] Furthermore, in order to improve the stability of the movement of the sliding seat, a slide rail is provided on the support, and the slide rail is provided along the connecting line between the fixed seat and the sliding seat, and the sliding seat is provided on the slide rail.

[0006] Furthermore, two transmission wheels are provided on the fixed seat, and the two transmission wheels are symmetrically arranged with the midpoint of the line connecting the two sliding seats as the axis to better position the workpiece.

[0007] Furthermore, a swing shaft is rotatably provided on the bracket, and the support is provided on the swing shaft. The axis of the swing shaft and the connecting line between the sliding seat are in the same direction, so that the angle of the support can be adjusted according to different welding requirements and workpiece specifications, and then the angle and position of the workpiece and the welding gun can be adjusted to meet different processing requirements.

[0008] Furthermore, in order to drive the support to swing and realize self-locking at the same time, a circle of worm gear concentric with it is provided on the swing shaft, and a worm is rotatably provided on the bracket, and the worm and the worm wheel are matched.

[0009] Furthermore, in order to prevent the workpiece from falling, a circle of concentric grooves is provided on the side wall of the transmission wheel.

[0010] Furthermore, the movement mode of the sliding seats is that the two sliding seats move independently.

[0011] Furthermore, the movement mode of the sliding seats is that the two sliding seats move synchronously.

[0012] Furthermore, in order to achieve synchronous movement of the sliding seat, a sliding frame that moves along the guide rail is provided on the support, and the guide rail extends toward one side of the fixed seat. The sliding seat is arranged on both sides of the guide rail. The sliding frame is provided with a long hole in the same direction as the line connecting the sliding seats, and the sliding seat is provided with a roller, which is located in the long hole.

[0013] The beneficial effects of this utility model are as follows: a workpiece is placed in the space enclosed by the fixed seat and the sliding seat, and then the sliding seat moves toward the workpiece, causing the drive wheels on the fixed seat and the sliding seat to press against the side walls of the workpiece. The drive wheels then drive the workpiece to rotate, thereby completing welding and other processing. During processing, the sliding seat moves with the side walls of the workpiece, ensuring that the weld seam and the workpiece connection are consistent, thereby improving welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front-view three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a rear-view stereoscopic structural diagram of the utility model.

[0016] Figure 3 It is a front structural schematic diagram of the utility model.

[0017] Figure 4 It is a side view structural diagram of the utility model.

[0018] Figure 5 Schematic diagram of the sliding seat driving structure in Example 3.

[0019] The text labels in the figure indicate: 1. bracket; 2. support; 3. fixed seat; 4. sliding seat; 5. transmission wheel; 6. motor; 7. slide rail; 8. swing shaft; 9. worm gear; 10. worm; 11. guide rail; 12. sliding frame; 13. long hole; 14. roller; 15. linear drive device. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0021] Example 1, as Figure 1-4 As shown, the structure of this embodiment is a V-shaped clamping mechanism, which includes a bracket 1, a support 2 is provided on the bracket 1, a fixed seat 3 and a sliding seat 4 are provided on the support 2, the sliding seat 4 is arranged on both sides of the fixed seat 3, the sliding seat 4 and the fixed seat 3 are triangularly distributed, that is, the sliding seat 4 and the fixed seat 3 are V-shaped, a slide rail 7 is provided on the support 2, the slide rail 7 is arranged along the connecting line between the fixed seat 3 and the sliding seat 4, the sliding seat 4 is arranged on the slide rail 7, in order to make the sliding seat 4 move along the slide rail 7, the sliding seat 4 can be connected to the support 2 by a spring, and the spring is provided on the telescopic rod connecting the sliding seat 4 and the support 2; in this embodiment, a cylinder is installed on the support 2, the piston rod of the cylinder is connected to the sliding seat 4, and the sliding seat 4 is driven to move by the cylinder to ensure that the workpiece is clamped in the transmission wheel 5.

[0022] The fixed seat 3 and the sliding seat 4 are both provided with a transmission wheel 5. The transmission wheels 5 on the fixed seat 3 and the sliding seat 4 are arranged relative to each other. In order to better fix the workpiece, in this embodiment, a circle of concentric grooves is provided on the side wall of the transmission wheel 5. The cross-section of the groove can be U-shaped, V-shaped, etc. If the transmission wheel 5 adopts a V-shaped wheel, at least one transmission wheel 5 is connected to the motor 6 for transmission. In this embodiment, the sliding seat 4 and the fixed seat 3 are both provided with a motor 6 for driving the transmission wheel 5, and the axis of the transmission wheel 5 is perpendicular to the upper end face of the support 2.

[0023] The fixed seat 3 is provided with two transmission wheels, which are symmetrically arranged with the midpoint of the line connecting the two sliding seats as the axis.

[0024] Specific working process: the staff places the workpiece between the fixed seat 3 and the sliding seat 4, then one staff member temporarily fixes the workpiece and clamps the edge of the workpiece into the slot of the transmission wheel 5 on the fixed seat 3, and then another staff member operates the cylinder to move the sliding seat 4 toward the workpiece, so that the edge of the workpiece is clamped into the slot of the transmission wheel 5 on the sliding seat 4.

[0025] After the workpiece is fixed, the motor 6 is turned on to drive the transmission wheel 5 to rotate. The transmission wheel 5 drives the workpiece to rotate, thereby facilitating welding and other processing. During the rotation of the workpiece, when the long axis side of the workpiece contacts the transmission wheel 5, it will push the sliding seat 4 to move toward the far end of the fixed seat 3, and when the short axis side of the workpiece contacts the transmission wheel 5, under the action of the cylinder, the sliding seat 4 moves toward the proximal end of the fixed seat 3, thereby ensuring that the weld and other requirements meet.

[0026] Example 2, as Figure 1-4As shown, the other structures and working processes of this embodiment are the same as those of Example 1. However, in this embodiment, a swing shaft 8 is rotatably provided on the bracket 1. Both ends of the swing shaft 8 are connected to bearings on the bracket. The swing shaft 8 can be driven by a motor or the like. In this embodiment, one end of the swing shaft 8 extends out of the bracket 1, and a worm gear 9 is provided on the swing shaft 8 extending out of the bracket 1. A worm 10 is rotatably provided on the bracket 1. The worm 10 and the worm gear 9 are worm-gear matched, and a handle is provided on the worm 10. The support 2 is provided at the upper end of the swing shaft 8, and the axis of the swing shaft 8 is in the same direction as the line connecting the sliding seat 4.

[0027] Specific working process: After the workpiece is clamped, the worm 10 is rotated as needed to drive the worm wheel 9 to rotate, thereby adjusting the angle of the support 2.

[0028] Example 3, as Figure 5 As shown, the other structures and operating processes of this embodiment are the same as those of Example 1. However, in this embodiment, the two sliding seats 4 move synchronously. To this end, the support 2 is provided with a sliding frame 12 that moves along a guide rail 11. The guide rail 11 extends toward the fixed seat 3. The sliding frame 12 is provided with an elongated hole 13 oriented in the same direction as the line connecting the sliding seats 4. The sliding seats 4 are provided with a roller 14, which is located in the elongated hole 13 and has an axis perpendicular to the support 2. The sliding frame 12 is connected to the piston rod of a linear drive device 15. The extended line of the piston rod of the linear drive device 15 and the guide rail 11 are perpendicular to the line connecting the two sliding seats 4. The linear drive device 15 is mounted on the support 2 and can be a cylinder, for example. During operation, the linear drive device 15 drives the sliding frame 12 toward the fixed seat 3, thereby causing the sliding seat 4 to move toward the fixed seat 3.

[0029] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0030] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above are only preferred implementation methods of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. A V-shaped clamping mechanism, comprising a bracket (1), characterized in that: The bracket (1) is provided with a support (2), the support (2) is provided with a fixed seat (3) and a sliding seat (4), the sliding seat (4) is provided on both sides of the fixed seat (3), the sliding seat (4) and the fixed seat (3) are distributed in a triangular manner, the sliding seat (4) slides along a line connecting it and the fixed seat (3), the fixed seat (3) and the sliding seat (4) are both provided with a transmission wheel (5), and at least one transmission wheel (5) is connected to a motor (6) in a transmission manner.

2. A V-shaped clamping mechanism according to claim 1, characterized in that: A slide rail (7) is provided on the support (2), and the slide rail (7) is provided along a line connecting the fixed seat (3) and the sliding seat (4), and the sliding seat (4) is provided on the slide rail (7).

3. A V-shaped clamping mechanism according to claim 1, characterized in that: Two transmission wheels (5) are provided on the fixed seat (3), and the two transmission wheels are symmetrically arranged with the midpoint of the line connecting the two sliding seats as an axis.

4. A V-shaped clamping mechanism according to claim 1, characterized in that: A swing shaft (8) is rotatably provided on the bracket (1), the support (2) is provided on the swing shaft (8), and the axis of the swing shaft (8) and the connecting line between the sliding seat (4) are in the same direction.

5. A V-shaped clamping mechanism according to claim 4, characterized in that: The swing shaft (8) is provided with a worm wheel (9) concentric therewith, and the bracket (1) is provided with a worm (10) for rotation, and the worm (10) and the worm wheel (9) are matched with each other in a worm gear.

6. A V-shaped clamping mechanism according to claim 1, characterized in that: A circle of concentric grooves is provided on the side wall of the transmission wheel (5).

7. A V-shaped clamping mechanism according to any one of claims 1 to 6, characterized in that: The two sliding seats (4) move independently.

8. A V-shaped clamping mechanism according to any one of claims 1 to 6, characterized in that: The two sliding seats (4) move synchronously.

9. The V-shaped clamping mechanism according to claim 8, characterized in that: The support (2) is provided with a sliding frame (12) that moves along a guide rail (11), the guide rail (11) extends toward one side of the fixed seat (3), and the sliding seat (4) is provided on both sides of the guide rail (11). The sliding frame (12) is provided with an elongated hole (13) in the same direction as the line connecting the sliding seat (4), and the sliding seat (4) is provided with a roller (14), and the roller (14) is located in the elongated hole (13).

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