A pipeline processing and transferring device

Abstract

The application relates to the technical field of flow conveying, in particular to a pipeline processing flow conveying device. The device comprises a flow conveying table and a sliding rod fixedly connected to the upper surface of the flow conveying table; a screw rod is rotationally connected to the upper surface of the flow conveying table; a lower conveying frame is fixedly connected to the lower half of the sliding rod; a lower chain is transmissionally connected to the inner side of the lower conveying frame; the sliding rod is slidingly connected to an upper conveying frame; the upper conveying frame is threadedly connected with the screw rod; a rocking handle is fixedly connected to the upper end of the screw rod; an upper chain is transmissionally connected to the inner side of the upper conveying frame; upper clamping seats are fixedly connected to the outer side of the upper chain along the transmission direction; the upper chain and the lower chain are matched with the arc-shaped clamping plate triggered by the compression of the driving block by changing the spacing of the upper chain and the lower chain, so that the flow conveying device is used for clamping and conveying the pipeline in the up-down and front-back directions through the upper clamping seats, the lower clamping seats and the arc-shaped clamping plate, thereby guaranteeing the conveying effect and being suitable for conveying pipelines with different diameters.

Description

Technical Field

[0001] This invention relates to the field of transfer and conveying technology, specifically a pipeline processing and transfer device. Background Technology

[0002] Metal flexible hoses are commonly used flexible connectors in piping systems. The main structure of a typical metal flexible hose consists of an inner corrugated metal tube, an outer braided protective layer, and end flanges. The corrugated metal tube, as the core pressure-bearing and flexible deformation component, directly determines the overall performance of the metal flexible hose due to its processing quality. The conventional processing flow for corrugated metal tubes is as follows: First, the metal coil is rolled into shape using forming equipment. The edges of the metal tube are then folded inwards and bent. The joints are then sealed using welding, forming a smooth, straight, circular tube. The formed circular straight tube is then stably conveyed to a corrugating forming machine via a transfer conveyor. After corrugated roll forming, a corrugated inner tube with flexible and extensible properties is obtained, completing the basic forming process of the metal corrugated hose.

[0003] Currently, most conveying equipment for semi-finished straight corrugated metal pipes adopts an upper and lower opposed double conveyor belt structure. Through the clamping and cooperation between the lower surface of the upper conveyor belt and the upper surface of the lower conveyor belt, the axial clamping and conveying of the circular straight pipe is achieved, completing the automated transfer of the pipe between the welding station and the corrugation forming station. To solve the problems of low friction between the smooth metal straight pipe and the conveyor belt, easy slippage during the conveying process, and poor conveying stability, existing technologies fix an arc-shaped block structure on the surface of the conveyor belt. Through the close fit and wrapping effect of the arc structure with the outer wall of the circular pipe, the contact area and clamping friction are increased, effectively improving the pipe conveying efficiency, avoiding pipe idling, slippage and deviation, and ensuring the basic conveying cycle.

[0004] However, existing conveying equipment still has significant technical defects: the arc-shaped block structure on the surface of the existing conveyor belt is a fixed structure, with its curvature, protrusion height, and forming size all being constant values. It can only be used to transport straight metal pipes of a single outer diameter. In actual production, different models of metal hoses correspond to metal corrugated pipes of different diameters. During production, the distance between the upper and lower sets of conveyor belts needs to be adjusted according to the pipe specifications to meet the clamping and conveying requirements of pipes of different diameters. However, the fixed arc-shaped block structure cannot adapt to the adjustment of the distance between the upper and lower conveyor belts. When the conveyor belt distance changes to accommodate pipes of different diameters, the original arc-shaped clamping structure cannot effectively fit and wrap with the outer wall of the new pipe. This easily leads to problems such as excessive clamping gap, insufficient contact fit, and a sudden drop in friction, resulting in pipe slippage, conveying deviation, and conveying jamming. This reduces the conveying stability and efficiency of pipes of different specifications, and the equipment has poor adaptability. It cannot meet the processing requirements of continuous production of mixed specifications of metal corrugated pipes, thus restricting the versatility and production efficiency of metal hose production lines. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention proposes a pipe processing and transfer device. By changing the spacing between the upper and lower chains and cooperating with the arc-shaped clamping plate triggered by the pressure of the active block, the device can clamp and transfer pipes in the vertical and horizontal directions and the front and back directions using the upper clamping seat, lower clamping seat and arc-shaped clamping plate during the pipe transfer process, thereby ensuring the transfer effect and being suitable for transferring pipes of different diameters.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows: A pipe processing transfer device according to this invention includes a transfer table and a slide rod fixedly connected to the upper surface of the transfer table; a screw rod is rotatably connected to the upper surface of the transfer table; a lower conveyor frame is fixedly connected to the lower half of the slide rod, and the lower conveyor frame is rotatably connected to the lower half of the screw rod; a lower chain is driven to the inner side of the lower conveyor frame; an upper conveyor frame is slidably connected to the slide rod; the upper conveyor frame is threadedly connected to the screw rod; a crank handle is fixedly connected to the upper end of the screw rod; an upper chain is driven to the inner side of the upper conveyor frame; upper clamps are fixedly connected at intervals along the transmission direction to the outer side of the upper chain; the upper clamps face the pipe fitting. The upper clamp is provided with an upper arc-shaped groove; an active groove is provided inwardly in the upper arc-shaped groove; an active block is slidably connected in the active groove; the active block is connected to the bottom of the active groove by an active spring; a driven groove is provided on the front and rear sides of the upper clamp facing the pipe; the driven groove is connected to the active groove through a toothed groove; a main gear is rotatably connected in the toothed groove and meshes with the teeth provided on the front and rear sides of the active block; an arc-shaped clamping plate extending to the front and rear sides of the pipe is fixedly connected to the outer wall of the main gear; a lower clamp is fixedly connected to the outer side of the lower chain along the transmission direction; a lower arc-shaped groove is provided on the upper surface of the lower clamp; and clearance grooves are provided at the front and rear ends of the lower clamp facing the pipe for the arc-shaped clamping plate to avoid.

[0007] Preferably, the active block facing the pipe is arc-shaped; the active block facing away from the pipe is provided with a receiving groove; one end of the active spring is fixedly connected to the bottom of the receiving groove, and the other end is fixedly connected to the bottom of the active groove; in the left and right direction, the width of the arc-shaped clamping plate entering the clearance groove is less than the width of the clearance groove.

[0008] Preferably, the arc-shaped clamping plate includes an arc-shaped fixed plate and an arc-shaped extension plate; the fixed plate is fixedly connected to the corresponding main gear; the fixed plate has a concave structure; the extension plate has a convex structure; the concave position of the fixed plate is movably connected to the convex end of the extension plate; an arc-shaped plate groove is provided through the left and right inner walls of the concave position of the fixed plate; a flat plate strip is movably connected in the plate groove; the plate strip is fixedly connected to the extension plate; the position of the plate strip away from the main gear and the end of the plate groove away from the main gear are connected by a plate tension spring.

[0009] Preferably, the specifications of the two clearance grooves within the same lower clamp are set to increase as they move further apart; the distance from the clearance groove to the lower chain is set to decrease as it moves further away from the lower arc groove.

[0010] Preferably, a trigger groove is provided on the right side of the lower clamp seat that contacts the pipe fitting; a trigger block is slidably connected in the trigger groove; a right pressure groove is provided on the right inner wall of the clearance groove on the lower clamp seat that contacts the pipe fitting; the right pressure groove communicates with the trigger groove; a right pressure plate that is fixedly connected to the trigger block is slidably connected in the right pressure groove; the right pressure plate is connected to the bottom of the right pressure groove by a right tension spring; a granular protrusion is provided on the side of the right pressure plate facing away from the right tension spring; granular protrusions are provided on the left and right outer walls of the arc-shaped clamping plate that extends into the clearance groove.

[0011] Preferably, the lower clamp seat in contact with the pipe fitting has a left pressure groove on its left inner wall near the clearance groove; a left pressure plate is slidably connected in the left pressure groove; the left pressure plate has granular protrusions on the side facing the right pressure plate; a left sliding groove and a right sliding groove are provided on the inner wall of the clearance groove near the lower chain; a left sliding bar fixedly connected to the left pressure plate is slidably connected in the left sliding groove; a right sliding bar fixedly connected to the right pressure plate is slidably connected in the right sliding groove; the lower ends of the left and right sliding grooves are connected by a synchronization groove; a synchronization gear is rotatably connected in the synchronization groove; the synchronization gear meshes with two synchronization racks; the two synchronization racks are symmetrically arranged about the center of the synchronization gear; the left and right sliding bars are fixedly connected to the corresponding synchronization racks.

[0012] Preferably, the two trigger blocks on the same lower clamp are fixedly connected by a connecting strip; the connecting strip is located outside the lower clamp and maintains a gap with the lower clamp.

[0013] Preferably, the end of the trigger block away from the right pressure plate is cone-shaped; a lower cone hole is provided at the corresponding position on the side of the lower clamp away from the trigger block; the lower cone hole can be inserted by the end of the trigger block on the adjacent lower clamp.

[0014] Preferably, the upper clamping seat in contact with the pipe fitting has an upper conical block on its right outer wall; the upper clamping seat in contact with the pipe fitting has an upper conical hole on its left outer wall; the upper conical hole can be inserted by the end of the upper conical block on the adjacent upper clamping seat.

[0015] The beneficial effects of this invention are as follows: 1. This invention, by changing the spacing between the upper and lower chains and cooperating with the arc-shaped clamping plate triggered by the pressure of the active block, enables the transfer equipment to clamp and transport pipes in the vertical and horizontal directions and the front and back directions using the upper clamping seat, lower clamping seat and arc-shaped clamping plate during the pipe transport process, thereby ensuring the transport effect and being applicable to the transport of pipes of different diameters.

[0016] 2. During the inward tightening process of the extension plate as the fixed plate flips, the convex end of the extension plate moves in the recessed position of the fixed plate. The strip moves along the plate groove as the extension plate moves, causing the plate tension spring to be stretched. This ensures that the length of the entire arc-shaped clamping plate matches the diameter of the pipe fitting, preventing the arc-shaped clamping plate from being too long and unable to close, and also preventing the arc-shaped clamping plate from being too short and affecting the front and rear clamping effect of the pipe fitting. This method is suitable for pipe fittings of different diameters.

[0017] 3. In this invention, the left and right pressure plates clamp the arc-shaped clamping plates in the clearance groove. The granular protrusions increase the friction between the left and right pressure plates and the arc-shaped clamping plates, so that the two arc-shaped clamping plates are locked after clamping the pipe fitting. This allows the pipe fitting to be transported stably during the clamping process, thus improving the stability of the pipe fitting transport. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the upper clamp and the lower clamp in this invention; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 yes Figure 2 A stereoscopic view from another perspective; Figure 5 yes Figure 2 A sectional view; Figure 6 This is a structural diagram of the arc-shaped clamping plate, the synchronous gear, and the synchronous rack in this invention.

[0020] In the diagram: 1. Transfer table, 11. Slide rod, 12. Screw, 13. Handle, 2. Lower conveyor frame, 21. Lower chain, 3. Upper conveyor frame, 31. Upper clamp, 4. Upper arc groove, 41. Active groove, 42. Driven groove, 45. Gear groove, 46. Upper cone block, 47. Upper cone hole, 48. Arc clamping plate, 5. Main gear, 51. Fixing plate, 52. Extension plate, 53. Plate groove, 54. Plate strip, 55. Plate tension spring, 56. Lower clamp, 6. Lower arc groove, 61. Avoidance groove, 62. Trigger groove, 63. Left slide groove, 64. Right pressure groove, 65. Right slide groove, 66. Synchronization groove, 67. Left pressure groove, 68. Lower cone hole, 69. Active block, 71. Active spring, 72. Receiving groove, 8. Right pressure plate, 81. Trigger block, 82. Right tension spring, 83. Right slide bar, 84. Connecting bar, 9. Left pressure plate, 91. Left slide bar, 92. Synchronization gear, 93. Synchronization rack. 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 6 As shown, the present invention includes the following embodiments: Example 1: A pipe processing transfer device includes a transfer table 1 and a slide rod 11 fixedly connected to the upper surface of the transfer table 1; a screw 12 is rotatably connected to the upper surface of the transfer table 1; a lower conveyor frame 2 is fixedly connected to the lower half of the slide rod 11, and the lower conveyor frame 2 is rotatably connected to the lower half of the screw 12; a lower chain 21 is drivenly connected to the inner side of the lower conveyor frame 2; an upper conveyor frame 3 is slidably connected to the slide rod 11; the upper conveyor frame 3 is threadedly connected to the screw 12; a crank handle 13 is fixedly connected to the upper end of the screw 12; an upper chain 31 is drivenly connected to the inner side of the upper conveyor frame 3; an upper clamp 4 is fixedly connected at intervals along the transmission direction to the outer side of the upper chain 31; an upper arc-shaped groove 41 is provided on the side of the upper clamp 4 facing the pipe; the upper arc-shaped groove 41 is provided to the upper clamp 4. The groove 41 is provided with an inwardly facing active groove 42; an active block 7 is slidably connected in the active groove 42; the active block 7 is connected to the bottom of the active groove 42 by an active spring 71; the upper clamp 4 is provided with a driven groove 45 on its front and rear sides facing the pipe fitting; the driven groove 45 is connected to the active groove 42 through a toothed groove 46; a main gear 51 is rotatably connected in the toothed groove 46 and meshes with the teeth provided on the front and rear sides of the active block 7; an arc-shaped clamping plate 5 extending to the front and rear sides of the pipe fitting is fixedly connected to the outer wall of the main gear 51; a lower clamp 6 is fixedly connected to the outer side of the lower chain 21 along the transmission direction; a lower arc-shaped groove 61 is provided on the upper surface of the lower clamp 6; and a clearance groove 62 is provided at the front and rear ends of the lower clamp 6 facing the pipe fitting for the arc-shaped clamping plate 5 to avoid.

[0023] In this embodiment, the active block 7 is arc-shaped on the side facing the pipe; the active block 7 is provided with a receiving groove 72 on the side away from the pipe; one end of the active spring 71 is fixedly connected to the bottom of the receiving groove 72, and the other end is fixedly connected to the bottom of the active groove 42; in the left and right direction, the width of the arc-shaped clamping plate 5 entering the avoidance groove 62 is smaller than the width of the avoidance groove 62.

[0024] Before using the transfer equipment to transport or transfer the pipe fittings, first control the crank handle 13 to rotate. During the rotation of the crank handle 13, the screw 12 will rotate. The thread of the screw 12 is only set in the upper half. Thus, during the rotation of the screw 12, the upper conveyor frame 3 will move upward along the slide bar 11. During the upward movement of the upper conveyor frame 3, the upper chain 31 will move upward. The upper chain 31 will move the upper clamp 4 upward, thus increasing the gap between the upper clamp 4 and the lower clamp 6. The pipe is then pulled between the upper clamp 4 and the lower clamp 6. The pipe will fall into the lower arc-shaped groove 61 of the lower clamp 6. Then, the screw 12 is rotated in the opposite direction to drive the upper conveyor frame 3 to move downward. During the downward movement of the upper conveyor frame 3, the upper chain 31 will move downward, causing the upper clamp 4 to move downward. During the downward movement of the upper clamp 4, it will approach the corresponding lower clamp 6. As the pipe enters the upper arc-shaped groove 41 of the upper clamp 4 near the upper outer wall, the pipe will squeeze the active block 7. During the compression, the active block 7 will move closer to the bottom of the active groove 42. The active block 7 will squeeze the active spring. Spring 71, the active spring 71 will gradually retract into the receiving groove 72 during the compression process. The active block 7 will drive the front and rear teeth to mesh with the main gear 51, so that the main gear 51 on the front and rear sides of the active block 7 will rotate. The two corresponding main gears 51 rotate in opposite directions. During the rotation of the main gear 51, the two arc-shaped clamping plates 5 will be driven to flip downward. The arc-shaped clamping plates 5 will gradually enter the relief groove 62 of the lower clamping seat 6. The arc-shaped clamping plates 5 will clamp the pipe between the upper clamping seat 4 and the lower clamping seat 6. The pipe is clamped in the vertical and horizontal directions.

[0025] Then, the upper motor on the outside of the upper conveyor frame 3 is started, and the lower motor on the outside of the lower conveyor frame 2 is started at the same time. The outer wall of the upper conveyor frame 3 is fixedly connected to the housing of the upper motor, and the output end of the upper motor is fixedly connected to one of the upper sprockets. The rotation of the upper sprocket drives the meshing upper chain 31 to drive. The transmission direction of the lower half of the upper chain 31 is from left to right. The upper chain 31 will drive the upper clamp 4 on the left to flip downward. The upper clamp 4 flipped downward will drive the driving block 7 to contact the upper outer wall of the pipe. This will trigger the main gear 51 to rotate, causing the two corresponding arc-shaped clamping plates 5 to flip downward, so that the arc-shaped clamping plates 5 can enter the clearance groove 62 on the lower clamp 6 flipped upward. The lower conveyor frame 2 is fixedly connected to the outer wall of the lower motor housing. One of the lower sprockets is fixedly connected to the output end of the lower motor. The rotation of the lower sprocket drives the meshing lower chain 21. The upper half of the lower chain 21 drives the left-hand lower clamp 6 to rotate upwards. After rotating, the lower clamp 6 aligns with the upper clamp 4, allowing the clearance groove 62 on the lower clamp 6 to meet the arc-shaped clamping plate 5. The width of the clearance groove 62 in the left-right direction is greater than the width of the arc-shaped clamping plate 5 entering the clearance groove 62. This allows the arc-shaped clamping plate 5 to smoothly enter the clearance groove 62 for clearance, ensuring that the pipe is clamped in the front-to-back direction by the two corresponding arc-shaped clamping plates 5. The pipe is also clamped in the vertical direction by the upper clamp 4 and the lower clamp 6. This causes the pipe to be conveyed to the right while clamped. The upper and lower motors rotate at the same speed, and the upper chain 31 and the upper clamp on the lower chain 21... 4 corresponds one-to-one with the lower clamp 6; the pipe formed by bending and welding stainless steel strips has a thin elastic thickness. When the pipe is squeezed vertically, it will expand in the front-to-back direction, while the arc-shaped clamping plate 5 clamps it in the front-to-back direction, thereby minimizing the deformation of the pipe during the conveying process and reducing the probability of excessive deformation causing weld cracks. It also allows the pipe to maintain a good roundness before entering the subsequent corrugated forming process. After the upper clamp 4 moves to the right position of the upper chain 31, it flips upward, and the lower clamp 6 will also flip downward accordingly. During the upward flipping of the upper clamp 4, the compression of the pipe on the active block 7 is reduced, so that the active spring 71 pushes the active block 7 away from the bottom of the active groove 42, so that the main gear 51 rotates in the opposite direction, so that the main gear 51 drives the arc-shaped clamping plate 5 to open and move out of the clearance groove 62, releasing the clamping of the pipe in the vertical and front-to-back directions. This process is repeated.

[0026] This invention changes the spacing between the upper chain 31 and the lower chain 21 and coordinates with the pressure-triggered arc clamping plate 5 of the active block 7, so that the transfer equipment can clamp and transport the pipes in the vertical and horizontal directions and the front and back directions by using the upper clamping seat 4, the lower clamping seat 6 and the arc clamping plate 5 during the pipe transport process, thereby ensuring the transport effect and being applicable to the transport of pipes of different diameters.

[0027] Example 2: The arc-shaped clamping plate 5 includes an arc-shaped fixing plate 52 and an arc-shaped extension plate 53; the fixing plate 52 is fixedly connected to the corresponding main gear 51; the fixing plate 52 has a concave structure; the extension plate 53 has a convex structure; the concave position of the fixing plate 52 is movably connected to the convex end of the extension plate 53; the left and right inner walls of the concave position of the fixing plate 52 are provided with arc-shaped plate grooves 54; a flat plate strip 55 is movably connected in the plate groove 54; the plate strip 55 is fixedly connected to the extension plate 53; the position of the plate strip 55 away from the main gear 51 and the end of the plate groove 54 away from the main gear 51 are connected by a plate tension spring 56.

[0028] In this embodiment, the specifications of the two clearance grooves 62 within the same lower clamp 6 increase as they move further apart; the distance from the clearance groove 62 to the lower chain 21 decreases as it moves further away from the lower arc groove 61.

[0029] During the process of the upper clamp 4 flipping downwards and the lower clamp 6 flipping upwards, the upper clamp 4 will drive the driving block 7 to contact the upper outer wall of the pipe fitting, triggering the main gear 51 to rotate, thereby driving the fixed plate 52 to flip towards the front and rear sides of the pipe fitting. The fixed plate 52 will drive the extension plate 53 to flip towards the front and rear sides of the pipe fitting. Because the opening of the clearance groove 62 is large, the extension plate 53 can smoothly enter the clearance groove 62. The distance from the inner wall of the clearance groove 62 to the lower chain 21 decreases as it moves away from the arc groove. This allows the convex end of the extension plate 53 to move in the recessed position of the fixed plate 52 during the inward tightening process as the fixed plate 52 flips. As the extension plate 53 moves along the groove 54, the plate spring 56 is stretched, ensuring that the length of the entire arc-shaped clamping plate 5 matches the diameter of the pipe fitting. This prevents the arc-shaped clamping plate 5 from being too long and unable to close properly, and also prevents it from being too short and affecting the clamping effect of the pipe fitting. It is suitable for pipe fittings of different diameters. During the process of the upper clamping seat 4 flipping upward and the lower clamping seat 6 flipping downward, the active block 7 releases its clamping force, causing the fixed plate 52 to drive the extension plate 53 to expand outward. The plate spring 56 will pull the plate strip 55 to move along the groove 54, causing the convex end of the extension plate 53 to move along the recessed position of the fixed plate 52, thus increasing the length of the entire arc-shaped clamping plate 5.

[0030] Example 3: A trigger groove 63 is provided on the right side of the lower clamp 6 that contacts the pipe fitting; a trigger block 81 is slidably connected in the trigger groove 63; a right pressure groove 65 is provided on the right inner wall of the clearance groove 62 on the lower clamp 6 that contacts the pipe fitting; the right pressure groove 65 communicates with the trigger groove 63; a right pressure plate 8 that is fixedly connected to the trigger block 81 is slidably connected in the right pressure groove 65; the right pressure plate 8 and the bottom of the right pressure groove 65 are connected by a right tension spring 82; the side of the right pressure plate 8 facing away from the right tension spring 82 is provided with granular protrusions; the left and right outer walls of the arc-shaped clamping plate 5 that extend into the clearance groove 62 are provided with granular protrusions.

[0031] In this embodiment, a left pressure groove 68 is provided on the left inner wall of the clearance groove 62 on the lower clamp 6 that contacts the pipe fitting; a left pressure plate 9 is slidably connected in the left pressure groove 68; the left pressure plate 9 has granular protrusions on the side facing the right pressure plate 8; a left sliding groove 64 and a right sliding groove 66 are provided on the inner wall of the clearance groove 62 near the lower chain 21; a left sliding bar 91 fixedly connected to the left pressure plate 9 is slidably connected in the left sliding groove 64; a right sliding bar 83 fixedly connected to the right pressure plate 8 is slidably connected in the right sliding groove 66; the lower ends of the left sliding groove 64 and the right sliding groove 66 are connected through a synchronization groove 67; a synchronization gear 92 is rotatably connected in the synchronization groove 67; the synchronization gear 92 meshes with two synchronization racks 93; the two synchronization racks 93 are symmetrically arranged about the center of the synchronization gear 92; the left sliding bar 91 and the right sliding bar 83 are fixedly connected to the corresponding synchronization racks 93.

[0032] As the upper clamp 4 flips downwards and the lower clamp 6 flips upwards, the arc-shaped clamping plate 5 flips into the space between the left pressure plate 9 and the right pressure plate 8 within the clearance groove 62. The upper clamp 4 and the lower clamp 6, together with the two arc-shaped clamping plates 5, clamp the pipe fitting vertically and horizontally. As the lower clamp 6 flips upwards, it gets closer and closer to the adjacent lower clamp 6 on the right. This causes the trigger block 81 to be squeezed and slide along the trigger groove 63. The trigger block 81 then drives the right pressure plate 8 to move along the right pressure groove 65 closer to the left pressure plate 9. The right pressure plate 8 pulls the right tension spring 82, causing the right tension spring 82 to complete its power storage process. The right pressure plate 8 then drives the right slide bar 83 to slide along the right slide groove 66. 3 will drive the connected synchronous rack 93 to move. Utilizing the cooperation between the synchronous rack 93 and the synchronous gear 92, another synchronous rack 93 will move. The other synchronous rack 93 will drive the left slide bar 91 to slide along the left slide groove 64, causing the left pressure plate 9 to move with the movement of the left slide bar 91. This will cause the left pressure plate 9 and the right pressure plate 8 to move closer to each other. The left pressure plate 9 and the right pressure plate 8 will clamp the arc-shaped clamping plate 5 in the clearance groove 62. The granular protrusions will increase the friction between the left pressure plate 9, the right pressure plate 8 and the arc-shaped clamping plate 5, so that the two arc-shaped clamping plates 5 are locked after clamping the pipe. This will enable the pipe to be transported in a stable clamping process, improving the stability of the pipe transport. During the upward flipping of the upper clamp 4 and the downward flipping of the lower clamp 6, the adjacent lower clamp 6 on the right has already flipped downward, so that the current trigger block 81 is not squeezed. The right tension spring 82 will pull the right pressure plate 8 to reset. The right pressure plate 8 will be pulled back into the right pressure groove 65. The right pressure plate 8 will drive the right slide bar 83 and one of the synchronous racks 93 to move, thereby using the synchronous gear 92 to drive the other synchronous rack 93 to move. In this way, the left pressure plate 9 returns to the left pressure groove 68. As the left pressure plate 9 and the right pressure plate 8 move away from each other, they will release the clamping of the arc-shaped clamping plate 5, so that the arc-shaped clamping plate 5 is unlocked in the clearance groove 62. In this way, during the upward flipping of the upper clamp 4, the arc-shaped clamping plate 5 can expand outward and move out of the clearance groove 62.

[0033] Example 4: Two trigger blocks 81 on the same lower clamp 6 are fixedly connected by a connecting strip 84; the connecting strip 84 is located outside the lower clamp 6 and maintains a gap with the lower clamp 6.

[0034] When the equipment is working, as the lower clamp 6 flips upward with the lower chain 21 to clamp and position the pipe, the lower clamp 6 gradually approaches the adjacent right lower clamp 6, and the trigger block 81 is subjected to compression. Since the two trigger blocks 81 on the same lower clamp 6 are fixedly connected by the connecting strip 84, and the connecting strip 84 is arranged on the outside of the lower clamp 6 and maintains a gap with the clamp body without interference, the force can be synchronously transmitted through the connecting strip 84 after either trigger block 81 is pressed, causing the two trigger blocks 81 to slide synchronously and in the same direction along their respective trigger grooves 63. While the two trigger blocks 81 slide synchronously, they respectively drive the right pressure plate 8 on the corresponding side. The synchronous action ensures that the arc-shaped clamping plates 5 in the two clearance grooves 62 at the front and rear of the lower clamping seat 6 are simultaneously clamped and locked, so that the arc-shaped clamping plates 5 on both sides of the pipe fitting are locked synchronously. When the pipe fitting is delivered to the position, the lower clamping seat 6 flips downward with the lower chain 21, the distance between adjacent lower clamping seats 6 increases, the squeezing force on the trigger block 81 disappears, and under the action of the right tension spring 82, the two trigger blocks 81 are synchronously reset by the linkage of the connecting strip 84, which drives the two right pressure plates 8 at the front and rear to synchronously release the arc-shaped clamping plates 5, release the locked state, and allow the arc-shaped clamping plates 5 to open smoothly for unloading. The entire process achieves a high degree of synchronization of the triggering, locking and resetting actions on both sides of the same lower clamping seat 6.

[0035] Example 5: The trigger block 81 is cone-shaped at the end away from the right pressure plate 8; a lower cone hole 69 is provided at the corresponding position on the side of the lower clamping seat 6 away from the trigger block 81; the lower cone hole 69 can be inserted by the end of the trigger block 81 on the adjacent lower clamping seat 6.

[0036] In this embodiment, an upper conical block 47 is provided on the right outer wall of the upper clamping seat 4 that contacts the pipe fitting; an upper conical hole 48 is provided on the left outer wall of the upper clamping seat 4 that contacts the pipe fitting; the upper conical hole 48 can be inserted by the end of the upper conical block 47 on the adjacent upper clamping seat 4.

[0037] When the equipment performs continuous clamping and conveying operations on thin-walled pipe fittings, as the lower chain 21 drives each lower clamp 6 to rotate upwards synchronously and fit against the bottom of the pipe fitting, the conical trigger block 81 on the right side of each lower clamp 6 rises with the lower clamp 6, approaches the adjacent lower clamp 6 on the right, and precisely aligns and inserts into the lower conical hole 69 on the left side of the adjacent lower clamp 6. This achieves insertion limit and anti-sway positioning between adjacent lower clamps 6, making all lower clamps 6 in contact with the pipe fitting form a whole, thus making it less likely for the lower clamps 6 in contact with the pipe fitting to shift or shake, improving the stability of pipe fitting conveying. Similarly, the upper chain 31 drives each upper clamp 4 to rotate downwards synchronously. The top of the pipe fitting is pressed tightly; adjacent upper clamps 4 are interlocked with each other by the upper cone block 47 at the end and the corresponding upper cone hole 48, so as to realize the interlocking limit and anti-sway positioning between adjacent upper clamps 4, so that all upper clamps 4 in contact with the pipe fitting form a whole, thereby making it difficult for the upper clamps 4 in contact with the pipe fitting to shift or shake, and improving the stability of pipe fitting transportation; since the arc-shaped clamping plate 5 is clamped inside the relief groove 62, all upper clamps 4 in contact with the pipe fitting and lower clamps 6 will form a whole, realizing the overall clamping and transportation of the pipe fitting, which further improves the stability of pipe fitting transportation and suppresses the shaking problem of pipe fitting transportation.

[0038] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 2 The orientations or positional relationships shown are for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention. In addition, the terms "first," "second," "third," etc. are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of the present invention, a fixed connection refers to a fixed connection. In the description of the present invention, a sliding connection refers to a connection where the two parts can only slide and cannot be separated. Specifically, the groove can be set to be concave and the block can be set to be convex, and the specific design can be adjusted according to the actual situation. A sliding fit refers to a connection where the two parts can slide and separate. In the description of the present invention, a rotating connection refers to a connection where the two parts can only rotate and cannot produce axial displacement. Specifically, an annular groove can be provided on the inner wall of the hole, and a ring that is rotatably connected to the groove can be fixedly connected to the outer wall of the shaft.

[0039] 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 pipe processing transfer device, comprising a transfer table and a slide rod fixedly connected to the upper surface of the transfer table; a screw rod rotatably connected to the upper surface of the transfer table; a lower conveyor frame fixedly connected to the lower half of the slide rod, the lower conveyor frame being rotatably connected to the lower half of the screw rod; a lower chain being driven through the inner side of the lower conveyor frame; an upper conveyor frame being slidably connected to the slide rod; the upper conveyor frame being threadedly connected to the screw rod; a crank handle being fixedly connected to the upper end of the screw rod; and an upper chain being driven through the inner side of the upper conveyor frame; characterized in that: The upper chain is fixedly connected to an upper clamp at intervals along the transmission direction on its outer side; the upper clamp has an upper arc-shaped groove on the side facing the pipe; the upper arc-shaped groove has an inwardly facing drive groove; a drive block is slidably connected in the drive groove; the drive block is connected to the bottom of the drive groove by a drive spring; the upper clamp has driven grooves on its front and rear sides facing the pipe; the driven groove communicates with the drive groove through a toothed groove; a main gear is rotatably connected in the toothed groove, meshing with the teeth on the front and rear sides of the drive block; an arc-shaped clamping plate extending to the front and rear sides of the pipe is fixedly connected to the outer wall of the main gear; the lower chain is fixedly connected to a lower clamp along the transmission direction on its outer side; the upper surface of the lower clamp has a lower arc-shaped groove; the front and rear ends of the lower clamp have clearance grooves for the arc-shaped clamping plate to avoid the pipe. A trigger groove is provided on the right side of the lower clamp seat that contacts the pipe fitting; a trigger block is slidably connected in the trigger groove; a right pressure groove is provided on the right inner wall of the clearance groove on the lower clamp seat that contacts the pipe fitting; the right pressure groove communicates with the trigger groove; a right pressure plate that is fixedly connected to the trigger block is slidably connected in the right pressure groove; the right pressure plate is connected to the bottom of the right pressure groove by a right tension spring; the side of the right pressure plate facing away from the right tension spring is provided with granular protrusions; the left and right outer walls of the arc-shaped clamping plate that extends into the clearance groove are provided with granular protrusions; A left pressure groove is provided on the left inner wall of the clearance groove on the lower clamp seat that contacts the pipe fitting; a left pressure plate is slidably connected in the left pressure groove; the side of the left pressure plate facing the right pressure plate is provided with granular protrusions; a left sliding groove and a right sliding groove are provided on the inner wall of the clearance groove near the lower chain; a left sliding bar fixedly connected to the left pressure plate is slidably connected in the left sliding groove; a right sliding bar fixedly connected to the right pressure plate is slidably connected in the right sliding groove; the lower ends of the left and right sliding grooves are connected by a synchronization groove; a synchronization gear is rotatably connected in the synchronization groove; the synchronization gear meshes with two synchronization racks; the two synchronization racks are symmetrically arranged about the center of the synchronization gear; the left and right sliding bars are fixedly connected to the corresponding synchronization racks.

2. The pipe processing and transfer equipment according to claim 1, characterized in that: The active block facing the pipe is arc-shaped; the active block facing away from the pipe is provided with a receiving groove; one end of the active spring is fixedly connected to the bottom of the receiving groove, and the other end is fixedly connected to the bottom of the active groove; in the left and right direction, the width of the arc-shaped clamping plate entering the clearance groove is less than the width of the clearance groove.

3. The pipe processing and transfer equipment according to claim 1, characterized in that: The arc-shaped clamping plate includes an arc-shaped fixed plate and an arc-shaped extension plate; the fixed plate is fixedly connected to the corresponding main gear; the fixed plate has a concave structure; the extension plate has a convex structure; the concave position of the fixed plate is movably connected to the convex end of the extension plate; the left and right inner walls of the concave position of the fixed plate are provided with arc-shaped plate grooves; a flat plate strip is movably connected in the plate groove; the plate strip is fixedly connected to the extension plate; the position of the plate strip away from the main gear and the end of the plate groove away from the main gear are connected by a plate tension spring.

4. The pipe processing and transfer equipment according to claim 3, characterized in that: The specifications of the two clearance slots within the same lower clamp are set to increase as they move further apart; the distance from the clearance slot to the lower chain is set to decrease as it moves further away from the lower arc-shaped slot.

5. The pipe processing and transfer equipment according to claim 1, characterized in that: The two trigger blocks on the same lower clamp are fixedly connected by a connecting strip; the connecting strip is located outside the lower clamp and maintains a gap with the lower clamp.

6. The pipe processing and transfer equipment according to claim 1, characterized in that: The trigger block is cone-shaped at the end away from the right pressure plate; a lower cone hole is provided at the corresponding position on the side of the lower clamp away from the trigger block; the lower cone hole can be inserted by the end of the trigger block on the adjacent lower clamp.

7. The pipe processing and transfer equipment according to claim 1, characterized in that: An upper conical block is provided on the right outer wall of the upper clamping seat that contacts the pipe fitting; an upper conical hole is provided on the left outer wall of the upper clamping seat that contacts the pipe fitting; the upper conical hole can be inserted by the end of the upper conical block on the adjacent upper clamping seat.

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