Multi-linear surface contact arc-shaped curved surface multi-angle clamping device

Abstract

The present invention discloses a multi-linear surface contact, multi-angle clamping device for curved surfaces. The device comprises a control mechanism, a linear motion mechanism, a planar rotation mechanism disposed via a mounting seat or directly at the transmission end of the linear motion mechanism, and a multi-linear surface contact head disposed at the transmission end of the planar rotation mechanism. The working surface of the multi-linear surface contact head is provided with a row of cylinders for clamping the curved surface, with all cylinders symmetrically distributed about the centerline of the entire row. The multi-linear surface contact head is equipped with an angle sensor for detecting the angle of the cylinders relative to the clamping centerline of the curved surface, and the linear motion mechanism is equipped with a distance sensor for detecting the distance between the clamping centerline of the curved surface. The control mechanism is respectively connected to the angle sensor, the distance sensor, the linear motion mechanism, and the planar rotation mechanism. The present invention achieves multi-linear surface contact clamping, with a higher degree of tightening and the ability to adjust the angle after clamping, thus avoiding usage limitations.

Description

Technical Field

[0001] The invention relates to a clamping device, in particular to a multi-linear surface contact arc-shaped multi-angle clamping device. Background Art

[0002] During the manufacturing process, curved surfaces, especially large-sized curved surfaces on pressure vessels in industries such as shipbuilding and metallurgy, need to be fixed before processing.

[0003] Currently, there are two types of fixing methods for curved surfaces: horizontal fixing and vertical fixing. The horizontal fixing method places the curved surface flat on a horizontal support platform, which not only places relatively high demands on the load-bearing capacity of the horizontal support platform, but also, because the curved surface itself has a certain curvature, the contact point between the bottom and the horizontal surface is small when placed horizontally, making it difficult to place it stably. The vertical fixing method fixes the upper and lower ends of the curved surface separately through mechanical components such as bolts or slots. Not only does it place high demands on the mechanical strength of the bolts and slots, but the bolts and slots will also produce processing errors during the processing process, resulting in problems such as not being able to tighten or clamp tightly, causing the curved surface to shake. In severe cases, it may fall off, causing a relatively serious safety accident. At the same time, the above-mentioned horizontal fixing method and vertical fixing method only have single-directional fixing, and cannot achieve tilted fixing of the curved surface, which has limitations. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-angle clamping device for an arc-shaped curved surface with multi-linear surface contact, so as to achieve clamping of multi-linear surface contact, have a higher degree of fastening, and be able to adjust the angle after clamping, thus avoiding limitations in use.

[0005] The technical solution adopted in the present invention is:

[0006] A multi-linear surface contact arc-shaped surface multi-angle clamping device comprises a control mechanism, a linear motion mechanism, a planar rotation mechanism provided via a mounting seat or directly at the transmission end of the linear motion mechanism, and a multi-linear surface contact head provided at the transmission end of the planar rotation mechanism; a working surface of the multi-linear surface contact head is provided with a row of cylinders for tightening the arc-shaped surface, all cylinders are symmetrically distributed about the center line of the entire row of cylinders, the multi-linear surface contact head is equipped with an angle sensor for detecting the angle of the cylinder relative to the clamping center line of the arc-shaped surface, the linear motion mechanism is equipped with a distance sensor for detecting the distance of the clamping center line of the arc-shaped surface, and the control mechanism is respectively connected to the angle sensor, the distance sensor, the linear motion mechanism and the planar rotation mechanism.

[0007] Furthermore, on the multi-linear surface contact head, all cylinders are clamped in their respective clamping grooves in the front-to-back direction and are limited by baffles in the directions of both ends.

[0008] Furthermore, five cylinders are provided on the multi-linear surface contact head.

[0009] Furthermore, the linear motion mechanism is a pneumatic cylinder, a hydraulic cylinder, an electric push rod, or a linear transmission assembly driven by a motor.

[0010] Furthermore, the linear motion mechanism is equipped with a support and guide mechanism, which includes a fixed plate and a support guide rod. The support guide rod is distributed around the mounting seat or the plane rotation mechanism. One end of the support guide rod is connected and fixed to the mounting seat or the plane rotation mechanism, and the other end is supported and cooperates to pass through the edge of the fixed plate. The mounting seat or the plane rotation mechanism is located in front of the fixed plate, and the main body of the linear motion mechanism is installed in the middle behind the fixed plate.

[0011] Furthermore, the support guide rod is connected and fixed to the mounting seat or the plane rotation mechanism through an adapter block, the base plate of the adapter block is connected to the mounting seat or the plane rotation mechanism through bolts, and the support guide rod passes through the vertical plate of the adapter block and clamps both sides of the vertical plate through matching nuts.

[0012] Furthermore, the planar rotating mechanism is a rotating cylinder or a rotating transmission assembly driven by a motor.

[0013] Furthermore, the rotation transmission component is an electronic gear and a 360° rotating shaft.

[0014] Furthermore, it also includes an emergency braking mechanism for emergency braking of the linear motion mechanism and the planar rotation mechanism, and the emergency braking mechanism is connected to the control mechanism.

[0015] The beneficial effects of the present invention are:

[0016] When working, the device can clamp the curved surface from both concave and convex sides of the curved surface. During the clamping process, the control mechanism adjusts the angle of the multi-linear surface contact head through the plane rotation mechanism according to the angle uploaded by the angle sensor, so that the cylinder is parallel to the clamping center line of the curved surface. According to the distance uploaded by the distance measuring sensor, the distance of the multi-linear surface contact heads is adjusted through the linear motion mechanism, so that multiple cylinders are close to the curved surface, realizing multi-linear surface contact clamping, increasing the fastening area of the curved surface and improving the fastening degree. Moreover, after clamping, the angle of the curved surface can be adjusted through the plane rotation mechanism, realizing multi-angle clamping and adjustable fastening angle, solving the problems of single fixing method and limited use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of an embodiment of the present invention.

[0018] Figure 2 2 is a schematic diagram of the working of an embodiment of the present invention.

[0019] Figure 3It is a partial schematic diagram of an embodiment of the present invention.

[0020] In the figure: 1-nut; 2-baffle; 3-cylinder; 4-angle sensor; 5-multi-linear surface contact head; 6-adapter block; 7-rotating cylinder; 8-fixed plate; 9-support guide rod; 10-cylinder, hydraulic cylinder or electric push rod; 11-arc surface; 12-brake rod. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0022] like Figure 1 and Figure 2 As shown, a multi-linear surface contact arc surface multi-angle clamping device includes a control mechanism, a linear motion mechanism (in this embodiment, a cylinder, a hydraulic cylinder or an electric push rod 10, of course, it can also be a linear transmission component driven by a motor), a rotary cylinder 7 provided at the transmission end of the linear motion mechanism (when the rotary cylinder 7 is replaced by a rotary transmission component driven by a motor, it must be installed through a mounting base, of course, the rotary cylinder 7 itself can also be installed using a mounting base, and the rotary transmission component is preferably an electronic gear and a 360° rotating shaft because of its high transmission accuracy), and a multi-linear surface contact head 5 provided at the transmission end of the rotary cylinder 7; a row of cylinders 3 for tightening the arc surface 11 are provided on the working surface of the multi-linear surface contact head 5, All cylinders 3 are symmetrically distributed about the center line of the entire row of cylinders 3. The multi-linear surface contact head 5 is equipped with an angle sensor 4 for detecting the angle of the clamping center line of the cylinder 3 relative to the arc surface 11 (the selected angle sensor 4 has a linear accuracy of 0.5%, a rotation angle range of 0 degrees-360 degrees, and is located on the rear contact line of the cylinder 3). The linear motion mechanism is equipped with a distance sensor for detecting the distance of the clamping center line of the arc surface 11 (the selected distance sensor is a triangular reflection sensor with a measurement accuracy of up to micron level. It only needs to ensure a certain directionality. The installation position can be arbitrarily selected, so it is not shown in the figure). The control mechanism is respectively connected to the angle sensor 4, the distance sensor, the linear motion mechanism and the rotary cylinder 7.

[0023] When working, the device can clamp the curved surface from both sides of the concave and convex of the curved surface 11. During the clamping process, the control mechanism adjusts the angle of the multi-linear surface contact head 5 by rotating the cylinder 7 according to the angle uploaded by the angle sensor 4, so that the cylinder 3 is parallel to the clamping center line of the curved surface 11. According to the distance uploaded by the distance measuring sensor, the distance of the multi-linear surface contact head 5 is adjusted by the linear motion mechanism, so that multiple cylinders 3 are close to the curved surface 11, realizing multi-linear surface contact clamping, increasing the fastening area of the curved surface 11, and the fastening degree is higher. Moreover, after clamping, the angle of the curved surface 11 can be adjusted by rotating the cylinder 7, realizing multi-angle clamping, and the fastening angle is adjustable, which solves the problems of single fixing method and limited use.

[0024] like Figures 1 to 3 As shown, in this embodiment, on the multi-linear surface contact head 5, all cylinders 3 are clamped in their respective clamping grooves in the front-to-back direction and are limited by the baffles 2 at both ends.

[0025] like Figure 1 and Figure 3 As shown, in this embodiment, five cylinders 3 are provided on the multi-linear surface contact head 5. Of course, their specific size and number can be adjusted as needed.

[0026] like Figure 1 and Figure 2 As shown, in this embodiment, in order to increase the transmission stability, the linear motion mechanism is equipped with a support and guide mechanism, which includes a fixed plate 8 and a support guide rod 9. The support guide rod 9 is distributed around the rotating cylinder 7. One end of the support guide rod 9 is connected and fixed to the rotating cylinder 7, and the other end is supported and cooperates to pass through the edge of the fixed plate 8. The rotating cylinder 7 is located in front of the fixed plate, and the main body of the linear motion mechanism is installed in the middle behind the fixed plate 8.

[0027] like Figures 1 to 3 As shown, in this embodiment, the support guide rod 9 is connected and fixed to the rotating cylinder 7 through the adapter block 6, the base plate of the adapter block 6 is connected to the rotating cylinder 7 through bolts, and the support guide rod 9 passes through the vertical plate of the adapter block 6 and clamps both sides of the vertical plate through the matching nut 1.

[0028] like Figure 2 As shown, in this embodiment, an emergency brake mechanism (such as a brake lever 12) is further included for applying an emergency brake to the linear motion mechanism and the rotary cylinder 7. The emergency brake mechanism is connected to the control mechanism. When the uploaded angle signal or displacement signal fails, the control mechanism activates the emergency brake mechanism, causing the linear motion mechanism and the rotary cylinder 7 to stop. When the signal returns to normal, the control mechanism deactivates the emergency brake.

[0029] The control mechanism includes a main controller and an electrical control component. The main controller is used to receive and process data from the angle sensor 4 and the distance sensor and issue instructions to the electrical control component. The electrical control component is used to drive the linear motion mechanism and the rotary cylinder 7 and other planar rotating mechanisms to work according to the instructions.

[0030] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A multi-linear surface contact arc surface multi-angle clamping device, characterized by: It includes a control mechanism, a linear motion mechanism, a plane rotation mechanism provided at the transmission end of the linear motion mechanism through a mounting seat or directly, and a multi-linear surface contact head provided at the transmission end of the plane rotation mechanism; a row of cylinders for tightening the arc surface is provided on the working surface of the multi-linear surface contact head, and all cylinders are symmetrically distributed about the center line of the entire row of cylinders; the multi-linear surface contact head is equipped with an angle sensor for detecting the angle of the cylinder relative to the clamping center line of the arc surface; the linear motion mechanism is equipped with a distance sensor for detecting the distance between the clamping center line of the arc surface; the control mechanism is connected to the angle sensor, the distance sensor, the linear motion mechanism and the plane rotation mechanism respectively The plane rotation mechanism is a rotating cylinder; when working, the arc surface is clamped from both sides of the concave and convex sides of the arc surface. During the clamping process, the control mechanism adjusts the angle of the multi-linear surface contact head through the rotating cylinder according to the angle uploaded by the angle sensor, so that the cylinder is parallel to the clamping center line of the arc surface. According to the distance uploaded by the distance measuring sensor, the distance of the multi-linear surface contact head is adjusted through the linear motion mechanism, so that multiple cylinders are close to the arc surface to realize the clamping of multi-linear surface contact. After clamping, the angle of the arc surface is adjusted by the rotating cylinder; on the multi-linear surface contact head, all cylinders are stuck in their respective slots in the front and rear directions, and are limited by baffles at both ends.

2. The multi-linear surface contact arc-shaped multi-angle clamping device according to claim 1, characterized in that: Five cylinders are provided on the multi-linear surface contact head.

3. The multi-linear surface contact arc-shaped multi-angle clamping device according to claim 1, characterized in that: The linear motion mechanism is a linear transmission component driven by a cylinder, a hydraulic cylinder, an electric push rod or a motor.

4. The multi-linear surface contact arc-shaped multi-angle clamping device according to claim 1, characterized in that: The linear motion mechanism is equipped with a support and guide mechanism, which includes a fixed plate and a support guide rod. The support guide rod is distributed around the mounting seat or the plane rotation mechanism. One end of the support guide rod is connected and fixed to the mounting seat or the plane rotation mechanism, and the other end is supported and cooperates to pass through the edge of the fixed plate. The mounting seat or the plane rotation mechanism is located in front of the fixed plate, and the main body of the linear motion mechanism is installed in the middle behind the fixed plate.

5. The multi-linear surface contact arc-shaped multi-angle clamping device according to claim 4, characterized in that: The support guide rod is connected and fixed to the mounting seat or plane rotation mechanism through the adapter block, the base plate of the adapter block is connected to the mounting seat or plane rotation mechanism through bolts, the support guide rod passes through the vertical plate of the adapter block and clamps both sides of the vertical plate through matching nuts.

6. The multi-linear surface contact arc-shaped multi-angle clamping device according to claim 1, characterized in that: The planar rotating mechanism is replaced by a rotating transmission assembly driven by a motor.

7. The multi-linear surface contact arc-shaped multi-angle clamping device according to claim 6, characterized in that: The rotation transmission component is an electronic gear and a 360° rotating shaft.

8. The multi-linear surface contact arc-shaped multi-angle clamping device according to claim 1, characterized in that: It also includes an emergency braking mechanism for performing emergency braking on the linear motion mechanism and the planar rotation mechanism, and the emergency braking mechanism is connected to the control mechanism.

Images