A full-automatic pipe bending machine clamping device

Abstract

The present application relates to the field of pipe bending clamping, and particularly relates to a clamping device for a full-automatic pipe bending machine, which comprises a full-automatic pipe bending table, a pipe storage box fixedly installed at the edge of one side of the full-automatic pipe bending table, a pipe movably sleeved on the top of the full-automatic pipe bending table and the inner side wall of the pipe storage box, and a limiting sleeve two fixedly installed on the left surface of the full-automatic pipe bending table, wherein the top surface of the full-automatic pipe bending table is fixedly installed with a motor one, and the output end of the motor one is fixedly connected with a threaded rod. The one end of the pipe is fixedly connected with a sliding block, and the pipe is moved to the bending position under the transmission of the motor one and the threaded rod. At this time, the motor two and the butt extrusion arm are moved, and the position of the pipe is limited under the butt of the supporting compression arm and the butt extrusion arm. The surface of the pipe is limited by multiple supporting points under the limitation of the sliding block, the supporting compression arm and the butt extrusion arm.

Description

Technical Field

[0001] This invention belongs to the field of pipe bending clamping technology, specifically a clamping device for a fully automatic pipe bending machine. Background Technology

[0002] Pipe bending machines can be broadly classified into CNC pipe bending machines, hydraulic pipe bending machines, etc. They are mainly used for pipeline laying and repair in power construction, railway and highway construction, boilers, bridges, ships, furniture, decoration, etc. They have the advantages of multiple functions, reasonable structure, and simple operation.

[0003] A patent with publication number CN110116154B discloses a fully automatic pipe bending machine, relating to the field of pipe processing machinery technology. It solves the problem that existing pipe bending machines cannot continuously bend the same pipe at multiple angles, directions, lengths, and sizes. The technical solution is a fully automatic pipe bending machine, including a frame, a bending component for bending the pipe, and a drive mechanism for driving the bending component to move horizontally. The bending component is vertically arranged. The frame also includes a clamping device and a rotating device. Multiple vertically arranged control cylinders are fixedly connected to the frame. The ends of the telescopic rods of the control cylinders are fixedly connected to forming blocks that press against the pipe when the bending component moves, thus cooperating with the bending component to bend the pipe. The arc angle of each forming block corresponds to the bending angle of different parts of the pipe. This invention has a reasonable structure; through the cooperation of the clamping device, rotating device, forming blocks, and bending component, it can continuously bend pipes at multiple angles, lengths, directions, and sizes.

[0004] In current technologies, the stability of the clamping device installation directly affects the accuracy of the bending angle of the product during pipe bending operations, thus directly impacting the product qualification rate. Currently, the fixed alignment is achieved by directly locking with bolts, which lacks flexibility in actual use. Furthermore, insufficient bolt hole precision can lead to a large number of defective parts. Additionally, current clamping devices are mostly manually operated, which is time-consuming, labor-intensive, and inefficient, requiring a high level of skill and expertise from the pipe bending personnel, resulting in high labor costs.

[0005] Therefore, the present invention provides a clamping device for a fully automatic pipe bending machine. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A clamping device for a fully automatic pipe bending machine, comprising a fully automatic pipe bending table and a pipe storage box fixedly installed on one side edge of the fully automatic pipe bending table; pipes movably fitted onto the top of the fully automatic pipe bending table and the inner wall of the pipe storage box; a limiting sleeve two fixedly installed on the left side surface of the fully automatic pipe bending table; a motor one fixedly installed on the top surface of the fully automatic pipe bending table; a threaded rod fixedly connected to the output end of the motor one; and a slider movably fitted onto the outer surface of the threaded rod. A second motor is fixedly installed on the top surface of the fully automatic pipe bending table and on one side edge of the second limiting sleeve. A mating extrusion arm is threadedly and movably sleeved on the outer surface of the output end of the second motor. A supporting anti-pressure arm is fixedly installed on one side surface of the second motor and on the outer surface of the fully automatic pipe bending table. A limiting cylinder is movably sleeved on the inner wall of the second limiting sleeve. A mating sleeve is fixedly connected to the outer surface of the limiting cylinder. A third motor is fixedly installed on the bottom surface of the second limiting sleeve. The output end of the third motor is fixedly connected to the outer surface of the limiting cylinder.

[0008] Preferably, a support column is provided on the top surface of the limiting cylinder, and a mating arc plate is fixedly connected to one side surface of the support column.

[0009] Preferably, two sets of limiting rods are movably sleeved on the outer surface of the docking sleeve. A motor is fixedly installed on one end of one set of the limiting rods on the outer surface of the docking sleeve. A swing arm is fixedly connected to the outer surface of the limiting rods, and a docking post is movably sleeved on the other end of the swing arm.

[0010] Preferably, an arc-shaped docking plate two is fixedly connected to one end of the docking column, and the inner wall surfaces of the arc-shaped docking plate two and the docking arc plate are movably sleeved on the outer surface of the pipe.

[0011] Preferably, a limiting sleeve is fixedly installed on the top surface of the fully automatic pipe bending table and on one side edge of the pipe storage box. A hydraulic rod is provided on the inner wall of the limiting sleeve, and a C-shaped extrusion head that is movably sleeved on the outer surface of the pipe is fixedly connected to the output end of the hydraulic rod.

[0012] Preferably, an anti-fall limiting strip is fixedly connected to the inner wall of the pipe storage box at the bottom edge, and a support strip is fixedly connected to the bottom inner wall of the pipe storage box.

[0013] Preferably, a groove is provided on the outer surface of the pipe storage box at the bottom edge, and an anti-slip limiting strip is fixedly connected to the outer surface of the groove.

[0014] Preferably, a tapered sleeve is fixedly connected to one end surface of the slider, and an arc-shaped connecting plate is oscillatingly connected to the outer surface of the slider.

[0015] Preferably, the arc-shaped connecting plate is positioned on the outer surface of the conical sleeve, and hydraulic rods are provided on both sides of the slider.

[0016] Preferably, a pressing and pushing block is fixedly connected to the output end of the hydraulic rod two, and the outer surface of the pressing and pushing block is movably overlapped with the outer surface of the arc-shaped docking plate one.

[0017] The beneficial effects of this invention are as follows: 1. The clamping device for a fully automatic pipe bending machine of the present invention, in conjunction with a slider, fixes one end of the pipe together, and under the drive of motor one and threaded rod, the pipe moves toward the bending point. At this time, in conjunction with motor two and the docking extrusion arm, the pipe position is limited by the docking of the support anti-pressure arm and the docking extrusion arm. Under the limitation of the slider, the support anti-pressure arm and the docking extrusion arm, the surface of the pipe is limited by multiple support points. 2. The clamping device for a fully automatic pipe bending machine described in this invention, when the pipe overlaps the inner wall of the connecting arc plate and the connecting column, is coordinated with the motor to rotate three pairs of connecting sleeves. As the connecting sleeves drive the pipe to rotate and bend, the arc angle on the outer surface of the support column allows the pipe to bend around the arc surface. When the pipe is bent, the direction and angle of the pipe swing are limited by the obstruction of the support anti-pressure arm, thereby reducing the positional displacement of the pipe during bending. At the same time, when the pipe needs to be moved, the sliding block can be used to transfer and push the pipe. 3. The clamping device for a fully automatic pipe bending machine described in this invention places multiple pipes into the inside of a pipe storage box. At this time, the anti-fall limit strip is used to limit the position of the pipe's fall, thereby reducing the falling speed of the pipe. At this time, a hydraulic rod pushes a pair of C-shaped extrusion heads, causing the C-shaped extrusion heads to extend the pipes on the inner wall of the pipe storage box. The anti-slip limit strip is used to limit the position movement of the pipes. As the hydraulic rod continues to extrude and extend until the C-shaped extrusion heads are sleeved on the outer surface of the pipes, the position of the pipes is limited. 4. The clamping device for a fully automatic pipe bending machine described in this invention, after one end of the pipe is fixed by the slider, is moved horizontally towards the support column under the constraint of the C-shaped extrusion head and the continuous transmission of the threaded rod until one end of the pipe extends through the support anti-pressure arm. Then, the motor moves the two pairs of mating extrusion arms, so that the support anti-pressure arm and the mating extrusion arm extrude and fix the other end of the pipe. At this time, the hydraulic rod pulls back the pair of C-shaped extrusion heads, so that the C-shaped extrusion heads are disengaged from the surface of the pipe, allowing the pipe to move under the push of the slider. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a perspective view of the present invention; Figure 2 This is a side perspective view of the fully automatic pipe bending table in this invention; Figure 3 This is a top-view perspective view of the fully automatic pipe bending table in this invention; Figure 4 This is a three-dimensional view of the fully automatic pipe bending table in this invention; Figure 5 This is a sectional perspective view of the pipe storage box in this invention; Figure 6 This is a perspective view of the conical sleeve in this invention; Figure 7 This is a perspective view of the docking sleeve in this invention.

[0020] In the diagram: 11. Fully automatic pipe bending table; 111. Motor 1; 112. Threaded rod; 113. Support and pressure-resistant arm; 114. Motor 2; 115. Butt-jointing extrusion arm; 116. Limiting sleeve 1; 117. Hydraulic rod 1; 118. C-type extrusion soft head; 119. Slider; a1. Conical sleeve; a2. Arc-shaped butt-jointing plate 1; a3. Hydraulic rod 2; a4. Extrusion push block; 12. Pipe receiving... Storage box; 121. Anti-fall limit strip; 122. Support strip; 123. Anti-slip limit strip; 13. Pipe; 14. Limit sleeve II; 141. Limit cylinder; 142. Docking sleeve; 143. Motor III; 144. Limit rod; 145. Motor IV; 146. Swing arm; 147. Docking column; 148. Arc-shaped docking plate II; 149. Support column; 1410. Docking arc plate. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] like Figures 1 to 7 As shown, an embodiment of the present invention provides a clamping device for a fully automatic pipe bending machine, comprising a fully automatic pipe bending table 11 and a pipe storage box 12 fixedly installed on one side edge of the fully automatic pipe bending table 11, a pipe 13 movably sleeved on the top of the fully automatic pipe bending table 11 and the inner wall of the pipe storage box 12, a limiting sleeve 14 fixedly installed on the left side surface of the fully automatic pipe bending table 11, a motor 111 fixedly installed on the top surface of the fully automatic pipe bending table 11, a threaded rod 112 fixedly connected to the output end of the motor 111, a slider 119 movably sleeved on the outer surface of the threaded rod 112, and a clamping device for a fully automatic pipe bending machine, located on the top surface of the fully automatic pipe bending table 11 and at one side edge of the limiting sleeve 14. Motor 2 114, with a mating extrusion arm 115 threadedly fitted onto the outer surface of its output end; a support and pressure-resistant arm 113 fixedly installed on one side of motor 2 114 and on the outer surface of the fully automatic pipe bending table 11; a limiting cylinder 141 movably fitted onto the inner wall of limiting sleeve 2 14; a mating sleeve 142 fixedly connected to the outer surface of limiting cylinder 141; a motor 3 143 fixedly installed on the bottom surface of limiting sleeve 2 14; the output end of motor 3 143 fixedly connected to the outer surface of limiting cylinder 141; a support column 149 provided on the top surface of limiting cylinder 141; and a mating arc plate 1410 fixedly connected to one side of support column 149.

[0023] The slider 119 is used to fix one end of the tube 13, and under the drive of the motor 111 and the threaded rod 112, the tube 13 moves to the bend. At this time, the motor 114 and the docking extrusion arm 115 move together, and under the docking of the support anti-pressure arm 113 and the docking extrusion arm 115, the position of the tube 13 is limited. Under the limitation of the slider 119, the support anti-pressure arm 113 and the docking extrusion arm 115, the surface of the tube 13 is limited by multiple support points. When the pipe 13 overlaps the inner wall of the mating arc plate 1410 and the mating column 147, the mating sleeve 142 is rotated by the motor 143. As the mating sleeve 142 drives the pipe 13 to rotate and bend, the arc angle on the outer surface of the support column 149 allows the pipe 13 to bend around the arc surface. When the pipe 13 bends, the direction and angle of the swing of the pipe 13 will be limited by the obstruction of the support anti-pressure arm 113, thereby reducing the positional displacement of the pipe 13 when bending. At the same time, when the pipe 13 needs to be moved, the position of the pipe 13 can be transferred and pushed by the slider 119.

[0024] like Figures 1 to 6As shown, a limiting sleeve 116 is fixedly installed on the top surface of the fully automatic pipe bending table 11, located at one edge of the pipe storage box 12. A hydraulic rod 117 is provided on the inner wall of the limiting sleeve 116. A C-shaped extrusion head 118, which is movably sleeved on the outer surface of the pipe 13, is fixedly connected to the output end of the hydraulic rod 117. An anti-fall limiting strip 121 is fixedly connected to the inner wall of the pipe storage box 12, located at the bottom edge. A support strip 122 is fixedly connected to the inner bottom wall of the pipe storage box 12. A slot is provided at the bottom edge of the surface, and an anti-slip limiting strip 123 is fixedly connected to the outer surface of the slot. A conical sleeve a1 is fixedly connected to one end surface of the slider 119. An arc-shaped docking plate a2 is oscillatingly connected to the outer surface of the slider 119. The position of the arc-shaped docking plate a2 is set on the outer surface of the conical sleeve a1. Hydraulic rods a3 are provided on both sides of the slider 119. A pressing push block a4 is fixedly connected to the output end of the hydraulic rod a3. The outer surface of the pressing push block a4 is movably overlapped on the outer surface of the arc-shaped docking plate a2.

[0025] Multiple pipes 13 are placed inside the pipe storage box 12. At this time, the anti-fall limit strip 121 is used to limit the position of the pipe 13, thereby reducing the falling speed of the pipe 13. At this time, the hydraulic rod 117 pushes the C-shaped extrusion head 118, causing the C-shaped extrusion head 118 to extend the pipe 13 on the inner wall of the pipe storage box 12. The anti-slip limit strip 123 is used to limit the position movement of the pipe 13. As the hydraulic rod 117 continues to extrude and extend until the C-shaped extrusion head 118 is sleeved on the outer surface of the pipe 13, the position of the pipe 13 is limited. After the tube 13 is constrained by the C-shaped extrusion head 118, the motor 111 rotates the threaded rod 112, causing the slider 119 to move and engage with one end surface of the tube 13. The conical sleeve a1 is used to constrain the position of one end surface of the tube 13. At this time, the hydraulic rod a3 pushes the extrusion push block a4, causing the arc-shaped mating plate a2 to fit against the surface of the tube 13, thus constraining the position of one end of the tube 13. After one end of the tube 13 is defined by the slider 119, under the constraint of the C-shaped extrusion head 118 and the continuous transmission of the threaded rod 112, the tube 13 moves horizontally toward the support column 149 until one end of the tube 13 extends through the support anti-pressure arm 113. Then, in conjunction with the motor 114, the mating extrusion arm 115 is moved, so that the support anti-pressure arm 113 and the mating extrusion arm 115 extrude and define the other end of the tube 13. At this time, the C-shaped extrusion head 118 is pulled back by the hydraulic rod 117, so that the C-shaped extrusion head 118 is disengaged from the surface of the tube 13, allowing the tube 13 to move under the push of the slider 119.

[0026] like Figures 1 to 3 and Figure 7 As shown, two sets of limiting rods 144 are movably sleeved on the outer surface of the docking sleeve 142. A motor 145 is fixedly installed on one end of one set of limiting rods 144 on the outer surface of the docking sleeve 142. A swing arm 146 is fixedly connected to the outer surface of the limiting rod 144. A docking post 147 is movably sleeved on the other end of the swing arm 146. An arc-shaped docking plate 148 is fixedly connected to one end of the docking post 147. The inner walls of the arc-shaped docking plate 148 and the docking arc plate 1410 are movably sleeved on the outer surface of the pipe 13.

[0027] When one end of the pipe 13 moves and inserts into the outer surface of the mating arc plate 1410, the motor 145 rotates the limiting rod 144, thereby driving the mating post 147 on the other end of the swing arm 146 to move. Under the constraint of the two sets of swing arms 146, the mating post 147 can move without changing its angle, and the arc-shaped mating plate 148 on one end of the mating post 147 is mated with the surface of the mating arc plate 1410, thus limiting the position of the pipe 13. At this time, the motor 143 rotates the limiting cylinder 141, and drives the mating sleeve 142 to rotate, thereby bending one end of the pipe 13.

[0028] Working principle: Multiple pipes 13 are placed inside the pipe storage box 12. At this time, the anti-fall limit strip 121 is used to limit the position of the pipes 13, thereby reducing the falling speed of the pipes 13. At this time, the hydraulic rod 117 pushes the C-shaped extrusion head 118, causing the C-shaped extrusion head 118 to extend the pipes 13 on the inner wall of the pipe storage box 12. The anti-slip limit strip 123 is used to limit the position movement of the pipes 13. As the hydraulic rod 117 continues to extrude and extend until the C-shaped extrusion head 118 is sleeved on the outer surface of the pipes 13, the position of the pipes 13 is limited. After the tube 13 is constrained by the C-shaped extrusion head 118, the motor 111 rotates the threaded rod 112, causing the slider 119 to move and engage with one end surface of the tube 13. The conical sleeve a1 is used to constrain the position of one end surface of the tube 13. At this time, the hydraulic rod a3 pushes the extrusion push block a4, causing the arc-shaped mating plate a2 to fit against the surface of the tube 13, thus constraining the position of one end of the tube 13. The slider 119 is used to fix one end of the tube 13. Under the drive of the motor 111 and the threaded rod 112, the tube 13 moves towards the bend. At this time, the motor 114 and the butt-joint pressing arm 115 move. With the engagement of the support anti-pressure arm 113 and the butt-joint pressing arm 115, the position of the tube 13 is limited. Under the limitation of the slider 119, the support anti-pressure arm 113 and the butt-joint pressing arm 115, the surface of the tube 13 is limited by multiple support points. After one end of the tube 13 is defined by the slider 119, under the limitation of the C-shaped extrusion head 118 and the continuous transmission of the threaded rod 112, the tube 13 moves horizontally toward the support column 149 until one end of the tube 13 extends through the support anti-pressure arm 113. Then, in conjunction with the motor 114, the mating extrusion arm 115 is moved, so that the support anti-pressure arm 113 and the mating extrusion arm 115 extrude and define the other end of the tube 13. At this time, the C-shaped extrusion head 118 is pulled back by the hydraulic rod 117, so that the C-shaped extrusion head 118 is disengaged from the surface of the tube 13, allowing the tube 13 to move under the push of the slider 119. When one end of the pipe 13 moves and inserts into the outer surface of the mating arc plate 1410, the motor 145 rotates the limiting rod 144, thereby driving the mating post 147 on the other end of the swing arm 146 to move. Under the limitation of the two sets of swing arms 146, the mating post 147 can move without changing the angle, and the arc mating plate 148 on one end of the mating post 147 is brought into contact with the surface of the mating arc plate 1410, thus limiting the position of the pipe 13. At this time, the motor 143 rotates the limiting cylinder 141, and drives the mating sleeve 142 to rotate, thereby bending one end of the pipe 13. When the pipe 13 overlaps the inner wall of the mating arc plate 1410 and the mating column 147, the mating sleeve 142 is rotated by the motor 143. As the mating sleeve 142 drives the pipe 13 to rotate and bend, the arc angle on the outer surface of the support column 149 allows the pipe 13 to bend around the arc surface. When the pipe 13 bends, the direction and angle of the swing of the pipe 13 will be limited by the obstruction of the support anti-pressure arm 113, thereby reducing the positional displacement of the pipe 13 when bending. At the same time, when the pipe 13 needs to be moved, the position of the pipe 13 can be transferred and pushed by the slider 119.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping device for a fully automatic pipe bending machine, comprising a fully automatic pipe bending table (11) and a pipe storage box (12) fixedly installed on one side edge of the fully automatic pipe bending table (11), a pipe (13) movably sleeved on the top of the fully automatic pipe bending table (11) and the inner wall of the pipe storage box (12), and a limiting sleeve (14) fixedly installed on the left side surface of the fully automatic pipe bending table (11), characterized in that: A motor (111) is fixedly installed on the top surface of the fully automatic pipe bending table (11). A threaded rod (112) is fixedly connected to the output end of the motor (111). A slider (119) is threadedly and movably sleeved on the outer surface of the threaded rod (112). A motor (114) is fixedly installed on the top surface of the fully automatic pipe bending table (11) and at one edge of the limiting sleeve (14). A butt pressing arm (115) is threadedly and movably sleeved on the outer surface of the output end of the motor (114). A support and pressure-resistant arm (113) is fixedly installed on one side surface of the motor two (114) and on the outer surface of the fully automatic pipe bending table (11); a limiting cylinder (141) is movably sleeved on the inner wall of the limiting sleeve two (14), a docking sleeve (142) is fixedly connected on the outer surface of the limiting cylinder (141), a motor three (143) is fixedly installed on the bottom surface of the limiting sleeve two (14), and the output end of the motor three (143) is fixedly connected to the outer surface of the limiting cylinder (141).

2. The clamping device for a fully automatic pipe bending machine according to claim 1, characterized in that: A support column (149) is provided on the top surface of the limiting cylinder (141), and a mating arc plate (1410) is fixedly connected to one side surface of the support column (149).

3. The clamping device for a fully automatic pipe bending machine according to claim 2, characterized in that: Two sets of limiting rods (144) are movably sleeved on the outer surface of the docking sleeve (142). A motor (145) is fixedly installed on one end of one set of the limiting rods (144) on the outer surface of the docking sleeve (142). A swing arm (146) is fixedly connected to the outer surface of the limiting rods (144), and a docking post (147) is movably sleeved on the other end of the swing arm (146).

4. The clamping device for a fully automatic pipe bending machine according to claim 3, characterized in that: An arc-shaped docking plate two (148) is fixedly connected to one end of the docking column (147), and the inner wall surfaces of the arc-shaped docking plate two (148) and the docking arc plate (1410) are movably sleeved on the outer surface of the pipe (13).

5. The clamping device for a fully automatic pipe bending machine according to claim 4, characterized in that: A limiting sleeve (116) is fixedly installed on the top surface of the fully automatic pipe bending table (11) and on one side edge of the pipe storage box (12). A hydraulic rod (117) is provided on the inner wall of the limiting sleeve (116). A C-shaped extrusion head (118) is fixedly connected to the output end of the hydraulic rod (117) and is movably sleeved on the outer surface of the pipe (13).

6. The clamping device for a fully automatic pipe bending machine according to claim 5, characterized in that: An anti-fall limiting strip (121) is fixedly connected to the inner wall of the pipe storage box (12) and at the bottom edge, and a support strip (122) is fixedly connected to the bottom inner wall of the pipe storage box (12).

7. The clamping device for a fully automatic pipe bending machine according to claim 6, characterized in that: The outer surface of the pipe storage box (12) is provided with a slot at the bottom edge, and an anti-slip limiting strip (123) is fixedly connected to the outer surface of the slot.

8. The clamping device for a fully automatic pipe bending machine according to claim 1, characterized in that: A conical sleeve (a1) is fixedly connected to one end surface of the slider (119), and an arc-shaped docking plate (a2) is oscillatingly connected to the outer surface of the slider (119).

9. A clamping device for a fully automatic pipe bending machine according to claim 8, characterized in that: The arc-shaped docking plate (a2) is positioned on the outer surface of the conical sleeve (a1), and hydraulic rods (a3) ​​are provided on both sides of the slider (119).

10. A clamping device for a fully automatic pipe bending machine according to claim 9, characterized in that: A compression push block (a4) is fixedly connected to the output end of the hydraulic rod two (a3), and the outer surface of the compression push block (a4) is movably connected to the outer surface of the arc-shaped docking plate one (a2).

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