Clamping table for machining bent pipe of pressure gauge

Abstract

The invention discloses a clamping table for pressure gauge bent pipe machining, and relates to the technical field of clamping tables, the clamping table comprises a clamping table, a placement groove and pipe clamps, the placement groove is formed in the center of the clamping table, the upper end of the placement groove communicates with the outside, the pipe clamps are adjustably arranged at the two ends of the clamping table, and each pipe clamp comprises a clamp body, an anti-skid soft cushion and a clamping strip; the adjacent sides of the two clamp bodies are rotationally connected, the other sides of the two clamp bodies are clamped, the anti-skid soft cushions are arranged on the inner sides of the clamp bodies, spaces are formed between the anti-skid soft cushions and the inner walls of the clamp bodies, fixing pipes are embedded in the inner walls of the clamp bodies, the inner ends of the fixing pipes are arranged and slidably connected with the clamping strips through first springs, and one ends of the clamping strips are fixedly connected with the anti-skid soft cushions. First vertical rails are arranged on the inner walls of the containing grooves. The bent pipe is inverted, so that the bent part of the bent pipe is located in the containing groove under the action of gravity, the bent part of the bent pipe is propped open and clamped in cooperation with the limiting clamp in the containing groove, the two ends, arranged outside, of the bent pipe are fixed through the pipe clamp, and the stability of the bent pipe is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of clamping tables, in particular to a clamping table for processing pressure gauge bending pipes. Background Art

[0002] During the installation of the pressure gauge, a condensation ring needs to be installed between the pressure gauge and the pipeline. It has the function of condensation, reduces the impact of high temperature on the pressure gauge, and also has the functions of shock absorption, buffering and anti-clogging. The condensation ring is generally made of a brass tube body through bending equipment. After bending and forming, joints need to be installed at both ends of the tube body. The installation of the joint requires special processing of the tube end, and the joint is tightly connected to the tube body through tools. The condenser tube needs to be fixed by a clamp during operation;

[0003] For example, a clamping table for pressure gauge bending processing in "CN116690474A" relates to the field of pressure gauge manufacturing machinery, comprising: a fixed table body; the lower surface of the fixed table body is connected with two positioning legs by welding; a reversing servo motor, the reversing servo motor is fixedly connected to the middle of the lower surface of the fixed table body by bolts; the clamping table in the present application has a direction reversing function, and can realize the stable and automatic locking of the direction of the clamping table, and has the function of automatically clamping and automatically disassembling the workpiece according to the direction of the clamping table, which saves manual operation steps, makes the operation more convenient, and effectively improves the installation efficiency of the pressure gauge bending joint, and solves the problem that the existing condenser pipe joint assembly generally uses a bench vise-type clamp to clamp and fix the pipe body. After the joint is installed on one end of the condenser pipe, the condenser pipe needs to be disassembled, and then the direction of the pipe body is reversed. In this process, the disassembly and clamping operations need to be repeated, which affects the processing efficiency.

[0004] However, in the prior art, in the above-mentioned clamping scheme, the bent part of the elbow is arranged upward for clamping, which is suitable for elbows with harder pipes. If it is made of soft metal materials such as copper pipes or aluminum pipes, clamping marks are left on the surface of the elbow during the clamping process, and even the pipe is deformed. When assembling the two ends of the elbow, since the bent part of the elbow is at the top, the center of gravity of the elbow is too high in this placement method, and gravity will cause a drooping effect on the middle part of the elbow, causing the bent part of the elbow to bend downward. At the same time, the shaking during the processing of the end face of the elbow may cause local displacement or deformation of the elbow. Summary of the invention

[0005] In view of the above existing problems, the present invention is proposed.

[0006] The purpose of the present invention is to solve the problem in the prior art that when a bent pipe made of a softer material is clamped with its bent part facing upward, the bent pipe may be easily deformed due to the high center of gravity and uneven distribution of clamping force.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] On the one hand, the present invention provides a clamping platform for pressure gauge bending processing, which includes a clamping platform, a placement groove and a pipe clamp, wherein the placement groove is arranged at the center position of the clamping platform and the upper end is connected to the outside, and the pipe clamp is adjustably arranged at both ends of the clamping platform, and the pipe clamp includes a clamp body, a non-slip pad and a clamping strip, the clamp body is provided with two adjacent sides that are rotatably connected, and the other sides of the two clamp bodies are engaged, the non-slip pad is arranged on the inner side of the clamp body and forms a space between the inner wall of the clamp body, the inner wall of the clamp body is embedded with a fixing tube, and the fixing tube is arranged on the inner end and is slidably connected to the clamping strip through a first spring. One end of the clamping strip is fixedly connected to the anti-slip pad, and a first vertical rail is provided on the inner wall of the placement groove. A connecting shaft is adjustable and slidable on the first vertical rail. One end of the connecting shaft extends to the center position of the placement groove and a rotating clamping mechanism is provided on the outer wall. The connecting shaft is a telescopic structure. The rotating clamping mechanism includes a turntable, a slide rail, a fixed plate and a limit clamp. The fixed plate is arranged on the end face of the connecting shaft and the turntable is rotatably arranged on the fixed plate. A plurality of slide rails are provided and are equally divided in an annular shape on the fixed plate. The limit clamp is slidably arranged on the slide rail and slidably arranged with the turntable. The outer wall of the limit clamp is used for clamping and limiting the surface of the curved pipe through an air bag.

[0009] Furthermore, a second vertical rail is provided on the other side of the placement groove away from the first vertical rail, and a rotating bar is threadedly connected to the inner wall of the connecting shaft. The rotating bar is slidably arranged to engage with the second vertical rail through a clamping block at one end away from the connecting shaft. After the bent pipe is stably placed in the placement groove, the rotating bar can be extended into the placement groove by rotating one end of the rotating bar until the clamping block engages with the second vertical rail. At this time, the clamping bar is just located at the center position of the placement groove and can be used to clamp the bent pipe. The first vertical rail and the second vertical rail are set, which are suitable for bent pipes of different diameters. When the diameter of the bending part of the bent pipe is larger, the connecting shaft and the rotating bar move downward, and vice versa. Specifically, after the limit clamp opens the bent pipe, the connecting shaft adjusts its up and down position accordingly.

[0010] Furthermore, a swivel ring is rotatably provided on the outer wall of the rotating bar, and the swivel ring is assembled and connected to the end face of the connecting shaft through a telescopic bar. The fixed plate is arranged on the swivel ring, and the rotating plate is rotatably arranged at the center position of the fixed plate and is linked with the rotating bar. The rotating plate is evenly provided with a plurality of arc grooves, and the arc grooves are arranged in a one-to-one correspondence with the slide rails. One side of the limit clip slides through the arc groove and the slide rail through the limit bar. The end of the arc groove away from the edge of the rotating plate is assembled and connected to the limit bar through a second spring, so that the rotating bar rotates. The movable turntable rotates. Since the fixed disk is linked with the swivel, and the swivel can only move telescopically relative to the connecting shaft, the turntable is arranged to rotate relative to the fixed disk. In the initial state, the limit bar is located at the end of the arc groove close to the center of the turntable. When the turntable rotates, the limit bar moves toward the end of the arc groove close to the edge of the turntable. At this time, the limit clamps move away from each other until the limit clamps and the bent pipe are clamped to a limit position. By setting a second spring, the limit clamps are located close to the center of the turntable in the initial state, so that the diameter of the limit clamp group is minimized, which is convenient for inserting into bent pipes of different diameters.

[0011] Furthermore, the limiting clamp has side plates symmetrically arranged on one side for clamping, and the surface of the airbag is provided with anti-slip grooves. The side plates are arranged to limit the position of the airbag, so that the airbag will gather toward the center when squeezed, thereby ensuring the pressure on the bent pipe.

[0012] The cam is configured to move the end of the rotating bar toward the inner wall of the sliding sleeve, and the end of the rotating bar and the connecting shaft are connected to each other by a thread groove. The cam is configured to move the end of the rotating bar toward the inner wall of the sliding sleeve, and the end of the rotating bar and the connecting shaft are connected to each other by a thread groove. The cam is configured to move the end of the rotating bar toward the inner wall of the sliding sleeve, and the end of the sliding sleeve is connected to the inner wall of the sliding sleeve. The cam is configured to move the end of the rotating bar toward the inner wall of the sliding sleeve, and the end of the sliding sleeve is connected to the inner wall of the sliding sleeve. The cam is configured to move the end of the rotating bar toward the inner wall of the sliding sleeve, and the end of the sliding sleeve is connected to the inner wall of the sliding sleeve. The cam is configured to move the end of the rotating bar toward the inner wall of the sliding sleeve, and the end of the sliding sleeve is connected to the inner wall of the sliding sleeve.

[0013] Furthermore, the sliding sleeve is provided with a handle for rotation at one end thereof, the inner side of the handle is assembled and connected to the rotating bar via a telescopic shaft, the lower end of the first vertical rail is assembled and connected to the sliding sleeve via a cylinder, and the rotating bar can be adjusted by simply rotating the handle forwards and backwards through the provided handle and telescopic shaft.

[0014] Furthermore, the sliding sleeve is provided with a fixed sleeve at one outer end, and a toothed ring is provided on the inner side of the fixed sleeve for sliding engagement. The outer side of the handle is slidably engaged with the inner wall of the toothed ring. When the handle is used, the toothed ring is slid out, and the restriction between the fixed sleeve and the handle is removed, so that the handle can be rotated. After the rotation is completed, the toothed ring can be engaged, and the inner and outer sides of the toothed ring are respectively engaged with the handle and the fixed sleeve, so that the handle cannot be rotated.

[0015] Furthermore, the center position of the turntable is rotatably sleeved on the outer wall of the rotating bar through a center ring, a card slot is provided on the inner side of the center ring, an inner bar is slidably provided on the inner wall of the rotating bar, and a plurality of groups of connecting bars are rotatably provided on the inner bar near one end of the center ring, and the plurality of groups of connecting bars are distributed in a ring shape and the end faces are rotatably connected to one end inside the rotating bar, and each group of connecting bars is hingedly arranged by two hinged bars, and a third spring is provided at the inner end of the inner bar and the rotating bar, and the card block is rotatably arranged on the outer end of the inner bar, and in the initial state, the turntable is rotatably connected to the center ring, and under the limiting action of the second spring The limit strip is arranged near the center of the turntable. When the rotating strip and the connecting shaft threadably rotate, the turntable and the center ring are still rotatably connected. The rotating strip rotates and extends in the connecting shaft until the block on the end face of the rotating strip engages with the second vertical rail. The block pushes the inner strip into the rotating strip. The inner strip squeezes the third spring and multiple groups of connecting strips. The multiple groups of connecting strips are bent and the bent parts just pass through the side wall of the rotating strip and extend into the slot of the center ring to realize the linkage between the center ring and the rotating strip. At this time, when the rotating strip continues to rotate, the rotating strip will not telescope and move, and the rotating strip and the turntable are in a linkage state during rotation, so the position of the limit clip can be adjusted.

[0016] Furthermore, a connecting plate is provided on one side of the clamp body, and the connecting plates on the two clamp bodies are snap-fitted. A buckle is rotatably provided at the edge of one connecting plate, and a buckle groove which is snap-fitted with the buckle is provided on the other clamp body. Through the snapping of the buckle and the buckle groove, the two clamp bodies can clamp and fix the two ends of the bent pipe.

[0017] Furthermore, a slide groove is provided above the clamping table, and a screw rod is rotatably provided in the slide groove. One end of the screw rod extends to the outside of the clamping table and is rotated by a motor. The two clamps are arranged up and down, and the lower clamp body is slidably set on the slide groove through a slide seat. The slide seat is threadedly sleeved on the screw rod. The screw rod is driven to rotate by the motor, and then the clamp body is driven to move, so as to facilitate the adjustment of the position of the clamp body to adapt to the positions of the two ends of the bent pipes of different sizes.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention inverts the bent pipe so that the bent part of the bent pipe is placed in the placement groove under the action of gravity, and cooperates with the limit clamp in the placement groove to open and clamp the bent part of the bent pipe, and fixes the two ends of the bent pipe arranged outside by the pipe clamp to ensure the stability of the bent pipe. It can better utilize gravity to enhance the clamping stability, disperse the pressure and reduce the risk of deformation. For thinner bent pipes, this clamping method can provide stronger supporting force to prevent it from loosening and deformation.

[0020] 2. The present invention evenly distributes multiple clamping strips in the clamp body, so that the pressure distribution of the clamping strips on the surface of the bent pipe is more uniform, which ensures stable clamping of the bent pipe while avoiding damage to the outer wall of the bent pipe during the clamping process. The anti-slip pad is in direct contact with the surface of the bent pipe, which not only increases the contact area with the bent pipe, but also has an effective anti-slip effect.

[0021] 3. The present invention arranges an airbag on the surface of the limit clamp so that the airbag is in direct extrusion contact with the surface of the bent pipe. The airbag has good plasticity and can adapt to pipes of any size and shape. The stability of the bent pipe is further guaranteed after the airbag is clamped with the bent pipe, and the extrusion deformation of the bent pipe during clamping can be effectively prevented.

[0022] 4. The present invention rotates the rotating bar to drive the turntable to rotate, thereby pulling all the clamping bars on the slide rail away synchronously until the airbag on the clamping bar is squeezed and deformed by the inner arc surface of the outer wall of the bent pipe. The clamping bars are evenly arranged in multiple positions, which can simultaneously support the bent part of the bent pipe at multiple points to prevent local deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 A three-dimensional diagram of a clamping table for pressure gauge bending processing provided by the present invention;

[0025] Figure 2 A schematic diagram of a pipe clamp of a clamping table for bending a pressure gauge provided by the present invention;

[0026] Figure 3 A schematic diagram of the internal structure of a clamping body of a clamping table for pressure gauge bending processing provided by the present invention;

[0027] Figure 4 A schematic diagram of the internal structure of a clamping strip and a fixed tube of a clamping table for bending a pressure gauge provided by the present invention;

[0028] Figure 5 A schematic diagram of the internal structure of a clamping table for a pressure gauge bending process provided by the present invention;

[0029] Figure 6 A schematic diagram of a fixing plate of a clamping table for processing a pressure gauge bending pipe provided by the present invention;

[0030] Figure 7 A schematic diagram of a turntable of a clamping table for pressure gauge bending processing provided by the present invention;

[0031] Figure 8 A schematic diagram of a state in which a rotating disk and a fixed disk of a clamping table for processing a pressure gauge bending pipe provided by the present invention are separated;

[0032] Fig. 9 A schematic diagram of the assembly structure of the connecting shaft and the rotating bar of a clamping table for pressure gauge bending processing provided by the present invention;

[0033] Fig.10 A schematic diagram of the assembly structure of a sleeve and a handle of a clamping table for a pressure gauge bending process provided by the present invention;

[0034] Fig.11 A schematic diagram of the internal structure of a rotating shaft of a clamping table for pressure gauge pipe bending processing provided by the present invention.

[0035] Legend:

[0036] 1. Clamping table; 2. Placement slot; 3. Pipe clamp; 311. Clamp body; 312. Anti-skid cushion; 313. Clamping strip; 314. Fixed tube; 315. First spring; 411. First vertical rail; 412. Connecting shaft; 413. Second vertical rail; 511. Turntable; 512. Slide rail; 513. Fixed plate; 514. Limiting clip; 515. Airbag; 6. Rotating strip; 7. Block; 811. Rotating ring; 812. Telescopic strip; 813. Arc groove; 814 , limit strip; 815, second spring; 9, side plate; 101, end groove; 102, sliding sleeve; 103, handle; 104, telescopic shaft; 105, fixed sleeve; 106, gear ring; 107, cylinder; 111, center ring; 112, inner strip; 113, slot; 114, connecting strip; 115, third spring; 121, connecting plate; 122, buckle; 123, buckle slot; 131, sliding slot; 132, screw rod; 133, motor; 134, slide seat. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] Secondly, as referred to herein, "one embodiment" or "embodiment" refers to a specific feature, structure, or characteristic that can be included in at least one implementation of the present invention. The "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0040] See also Figure 1-Figure 11 The present invention provides a technical solution: a clamping platform for pressure gauge bending processing, including a clamping platform 1, a placement groove 2 and a pipe clamp 3, the placement groove 2 is arranged at the center of the clamping platform 1 and the upper end is connected to the outside, the pipe clamp 3 is adjustably arranged at both ends of the clamping platform 1, the pipe clamp 3 includes a clamp body 311, an anti-skid pad 312 and a clamping strip 313, the clamp body 311 is provided with two and the adjacent one side is rotatably connected, the other sides of the two clamp bodies 311 are engaged, the anti-skid pad 312 is arranged on the inner side of the clamp body 311 and forms a space with the inner wall of the clamp body 311, the inner wall of the clamp body 311 is embedded with a fixed tube 314, the fixed tube 314 is arranged on the inner end and is slidably connected to the clamping strip 313 through a first spring 315, and one end of the clamping strip 313 is connected to the anti-skid soft pad The pad 312 is fixedly connected, and a first vertical rail 411 is provided on the inner wall of the placement groove 2. A connecting shaft 412 is adjustable and slidably provided on the first vertical rail 411. One end of the connecting shaft 412 extends to the center position of the placement groove 2 and a rotating clamping mechanism is provided on the outer wall. The connecting shaft 412 is a telescopic structure. The rotating clamping mechanism includes a turntable 511, a slide rail 512, a fixed plate 513 and a limit clamp 514. The fixed plate 513 is arranged on the end face of the connecting shaft 412 and the turntable 511 is rotatably arranged on the fixed plate 513. A plurality of slide rails 512 are provided and are equally divided in an annular shape on the fixed plate 513. The limit clamp 514 is slidably arranged on the slide rail 512 and is slidably arranged with the turntable 511. The outer wall of the limit clamp 514 is used for clamping and limiting with the surface of the curved pipe through an air bag 515.

[0041] like Figure 1-Figure 11As shown, a second vertical rail 413 is provided on the other side of the placement groove 2 away from the first vertical rail 411, and a rotating bar 6 is threadedly connected to the inner wall of the connecting shaft 412. The rotating bar 6 is slidably arranged to engage with the second vertical rail 413 through a clamping block 7 at one end away from the connecting shaft 412. After the bent pipe is stably placed in the placement groove 2, the rotating bar 6 can be extended into the placement groove 2 by rotating one end of the rotating bar 6 until the clamping block 7 engages with the second vertical rail 413. At this time, the clamping bar 313 is just located at the center position of the placement groove 2 and can be used to clamp the bent pipe. The first vertical rail 411 and the second vertical rail 413 are set, which are suitable for bent pipes of different diameters. When the diameter of the bent part of the bent pipe is large, the connecting shaft 412 and the rotating bar 6 move downward, and vice versa. Specifically, after the limit clamp 514 opens the bent pipe, the connecting shaft 412 adjusts its up and down position accordingly.

[0042] like Figure 1-Figure 11 As shown, a rotating ring 811 is rotatably provided on the outer wall of the rotating bar 6, and the rotating ring 811 is assembled and connected with the end face of the connecting shaft 412 through a telescopic bar 812. A fixed disk 513 is arranged on the rotating ring 811, and the rotating disk 511 is rotatably arranged at the center position of the fixed disk 513 and is arranged in linkage with the rotating bar 6. A plurality of arc grooves 813 are evenly arranged on the rotating disk 511, and the arc grooves 813 and the slide rails 512 are arranged one by one. One side of the limiting clip 514 slides through the arc groove 813 and is slidably arranged with the slide rail 512 through the limiting bar 814. The end of the arc groove 813 away from the edge of the rotating disk 511 is assembled and connected with the limiting bar 814 through the second spring 815. The rotating bar 6 rotates, driving the rotating disk 511 to rotate. Due to the fixed The fixed plate 513 is linked with the rotating ring 811, and the rotating ring 811 can only be telescopically moved relative to the connecting shaft 412. Therefore, the rotating disk 511 is rotatably arranged relative to the fixed plate 513. In the initial state, the limit bar 814 is located at one end of the arc groove 813 close to the center of the rotating disk 511. When the rotating disk 511 rotates, the limit bar 814 moves toward the end of the arc groove 813 close to the edge of the rotating disk 511. At this time, the limit clamps 514 move away from each other until the limit clamps 514 and the bent pipe are clamped and limited. By setting the second spring 815, the limit clamps 514 are located close to the center of the rotating disk 511 in the initial state, so that the diameter of the limit clamps 514 group is the smallest, which is convenient for inserting into bent pipes of different diameters.

[0043] like Figure 1-Figure 11 As shown, the side of the limit clamp 514 used for clamping is symmetrically provided with a side plate 9, and the surface of the airbag 515 is provided with anti-slip grooves. The side plate 9 is provided to limit the airbag 515, so that the airbag 515 will also gather towards the center when squeezed, thereby ensuring the pressure on the bent pipe.

[0044] like Figure 1-Figure 11As shown, the side wall of the rotating bar 6 is provided with a thread groove which is threadedly connected to the internal thread of the inner wall of the connecting shaft 412, and the side walls of the rotating bar 6 and the connecting shaft 412 which are close to each other are respectively smooth, and the side wall of the rotating bar 6 close to the connecting shaft 412 is provided with an end groove 101 which is connected to the thread groove, and a sliding sleeve 102 is slidably provided on the first vertical rail 411, and one end of the connecting shaft 412 is fixedly assembled and connected to the inner wall of the sliding sleeve 102, and one end of the sliding sleeve 102 slides through the side wall of the clamping platform 1 and extends outward. By rotating the rotating bar 6, the rotating bar 6 and the connecting shaft 412 are threadedly rotated, and the limiting clamp 514 approaches the center position of the placement groove 2 until one end of the rotating bar 6 is engaged with the second vertical rail 413. In this state, the thread groove on the rotating bar 6 is just disengaged from the internal thread on the connecting shaft 412, and one end of the internal thread slides in the end groove 101. The rotating bar 6 continues to rotate to drive the turntable 511 to rotate, and the limiting clamp 514 is unfolded.

[0045] like Figure 1-Figure 11 As shown, the sliding sleeve 102 is arranged at one end thereof and is rotatably provided with a handle 103, the inner side of the handle 103 is assembled and connected with the rotating bar 6 via a telescopic shaft 104, the lower end of the first vertical rail 411 is assembled and connected with the sliding sleeve 102 via a cylinder 107, and through the arranged handle 103 and telescopic shaft 104, when adjusting the rotating bar 6, it is only necessary to rotate the handle 103 forwards and backwards.

[0046] like Figure 1-Figure 11 As shown, the sliding sleeve 102 is provided with a fixed sleeve 105 at one end outside, and a toothed ring 106 is provided inside the fixed sleeve 105 for sliding engagement. The outer side of the handle 103 is slidably engaged with the inner wall of the toothed ring 106. When the handle 103 is used, the toothed ring 106 is slid out, and the restriction between the fixed sleeve 105 and the handle 103 is removed, so that the handle 103 can be rotated. After the rotation is completed, the toothed ring 106 can be engaged. The inner and outer sides of the toothed ring 106 are respectively engaged with the handle 103 and the fixed sleeve 105, so that the handle 103 cannot be rotated.

[0047] like Figure 1-Figure 11As shown, the center position of the turntable 511 is rotatably sleeved on the outer wall of the rotating bar 6 through the center ring 111, the inner side of the center ring 111 is provided with a card slot 113, the inner wall of the rotating bar 6 is slidably provided with an inner bar 112, and the inner bar 112 is rotatably provided with multiple groups of connecting bars 114 near one end of the center ring 111. The multiple groups of connecting bars 114 are arranged in a ring shape and the end faces are rotatably connected with one end inside the rotating bar 6. Each group of connecting bars 114 is hinged by two hinged bars. The inner bar 112 and the rotating bar 6 are arranged at the inner end and a third spring 115 is provided. The card block 7 is rotatably arranged on the inner bar 112 and the outer end. In the initial state, the turntable 511 is rotatably connected with the center ring 111. Under the limiting action of the second spring 815, the limiting bar 814 is close to the center of the turntable 511. The center is set, when the rotating bar 6 and the connecting shaft 412 are threadedly rotated, the turntable 511 and the center ring 111 are still rotationally connected, and the rotating bar 6 rotates and extends in the connecting shaft 412 until the block 7 on the end face of the rotating bar 6 is engaged with the second vertical rail 413, and the block 7 pushes the inner bar 112 to enter the rotating bar 6, and the inner bar 112 squeezes the third spring 115 and multiple groups of connecting bars 114. The multiple groups of connecting bars 114 are bent and the bent parts just pass through the side wall of the rotating bar 6 and extend into the slot 113 of the center ring 111, realizing the linkage between the center ring 111 and the rotating bar 6. At this time, when the rotating bar 6 continues to rotate, the rotating bar 6 will not telescope and move, and the rotating bar 6 and the turntable 511 are in a linkage state during rotation, so that the position of the limit clamp 514 can be adjusted.

[0048] like Figure 1-Figure 11 As shown, a connecting plate 121 is provided on one side of the clamp body 311, and the connecting plates 121 on the two clamp bodies 311 are snap-fitted. A buckle 122 is rotatably provided at the edge of one connecting plate 121, and a buckle groove 123 snap-fitted with the buckle 122 is provided on the other clamp body 311. Through the snap fit of the buckle 122 and the buckle groove 123, the two clamp bodies 311 can clamp and fix the two ends of the bent pipe.

[0049] like Figure 1-Figure 11 As shown, a slide groove 131 is provided above the clamping platform 1, and a screw rod 132 is rotatably provided in the slide groove 131. One end of the screw rod 132 extends to the outside of the clamping platform 1 and is driven to rotate by a motor 133. Two clamping bodies 311 are arranged up and down, and the lower clamping body 311 is slidably set on the slide groove 131 through a slide seat 134. The slide seat 134 is threadedly sleeved on the screw rod 132. The screw rod 132 is driven to rotate by the motor 133, and then the clamping body 311 is driven to move, so as to facilitate the adjustment of the position of the clamping body 311 to adapt to the positions of the two ends of the bent pipes of different sizes.

[0050] Working principle: When clamping the bent pipe by the clamping platform 1, the bent part of the bent pipe is slid vertically into the placement groove 2, and the positions of the two pipe clamps 3 on the clamping platform 1 are adjusted so that the two ends of the bent pipe are just placed on one clamp body 311 of the pipe clamp 3, and the other clamp body 311 is rotated and flipped to the top of the bent pipe and engaged. At this time, the two clamp bodies 311 clamp and fix the pipe clamp 3, specifically, the bent pipe squeezes the clamping strip 313 in contact with it, and the clamping strip 313 compresses the first spring 315 into the fixed tube 314. The opposite first spring 315 provides a thrust for the clamping strip 313 to squeeze the surface of the bent pipe, and the anti-skid pad 312 is in direct contact with the surface of the bent pipe, which can not only increase the contact area with the bent pipe, but also have an effective anti-skid effect. The clamping strip 313 in the clamp body 311 The distribution is relatively close, so that the pressure on the surface of the bent pipe is relatively uniform, which ensures that the bent pipe is clamped stably while avoiding damage to the outer wall of the bent pipe during the clamping process. By rotating the rotating bar 6, the turntable 511 is driven to rotate, thereby pulling all the clamping bars 313 on the slide rail 512 away synchronously until the air bag 515 on the clamping bar 313 is squeezed and deformed by the inner arc surface of the outer wall of the bent pipe. The air bag 515 has good plasticity and can adapt to pipes of any size and shape. After the air bag 515 is clamped with the bent pipe, the stability of the bent pipe is further guaranteed. After the clamping is completed, the processing operation on both ends of the bent pipe can be realized. When disassembling, first rotate the contracted clamping bar 313 in the opposite direction to separate it from the bent pipe, and then pull the rotating bar 6 to move the clamping bar 313 away from the bent pipe and close to the first vertical rail 411, so that it is convenient to directly take out the bent pipe.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A clamping table for pressure gauge bending processing, characterized in that: The invention comprises a clamping platform (1), a placement groove (2) and a pipe clamp (3), wherein the placement groove (2) is arranged at the center of the clamping platform (1) and the upper end is connected to the outside, the pipe clamp (3) is adjustably arranged at both ends of the clamping platform (1), the pipe clamp (3) comprises a clamp body (311), an anti-skid pad (312) and a clamping strip (313), the clamp body (311) is provided with two adjacent ones which are rotatably connected on one side, the two clamp bodies (311) are arranged at the other side in a snap-fitting manner, the anti-skid pad (312) is arranged on the inner side of the clamp body (311) and forms a space between the anti-skid pad (312) and the inner wall of the clamp body (311), the inner wall of the clamp body (311) is embedded with a fixing tube (314), one end of the fixing tube (314) is arranged inside and is slidably connected to the clamping strip (313) through a first spring (315), and one end of the clamping strip (313) is fixedly connected to the anti-skid pad (312) The inner wall of the placement groove (2) is provided with a first vertical rail (411), and the first vertical rail (411) is adjustable and slidably provided with a connecting shaft (412), one end of the connecting shaft (412) extends to the center position of the placement groove (2) and the outer wall is provided with a rotating clamping mechanism, the connecting shaft (412) is a telescopic structure, the rotating clamping mechanism comprises a rotating disk (511), a sliding rail (512), a fixed disk (513) and a limiting clamp (514), the fixed disk (513) is arranged on the end surface of the connecting shaft (412) and the rotating disk (511) is rotatably arranged on the fixed disk (513), the sliding rail (512) is provided with a plurality of and annularly equally divided on the fixed disk (513), the limiting clamp (514) is slidably arranged on the sliding rail (512) and slidably arranged with the rotating disk (511), and the outer wall of the limiting clamp (514) is used for clamping and limiting with the surface of the curved pipe through an air bag (515).

2. A clamping table for pressure gauge bending processing according to claim 1, characterized in that: A second vertical rail (413) is provided on the other side of the placement slot (2) away from the first vertical rail (411); a rotating bar (6) is threadedly connected to the inner wall of the connecting shaft (412); and one end of the rotating bar (6) away from the connecting shaft (412) is slidably engaged with the second vertical rail (413) through a clamping block (7).

3. A clamping table for pressure gauge bending processing according to claim 2, characterized in that: The outer wall of the rotating bar (6) is rotatably provided with a rotating ring (811), and the rotating ring (811) is assembled and connected with the end face of the connecting shaft (412) through a telescopic bar (812). The fixed disk (513) is arranged on the rotating ring (811), and the rotating disk (511) is rotatably arranged at the center position of the fixed disk (513) and is linked with the rotating bar (6). A plurality of arc grooves (813) are evenly arranged on the rotating disk (511), and the arc grooves (813) and the slide rails (512) are arranged one by one. One side of the limiting clip (514) slides through the arc grooves (813) and slides with the slide rails (512) through the limiting bar (814), and the end of the arc groove (813) away from the edge of the rotating disk (511) is assembled and connected with the limiting bar (814) through a second spring (815).

4. A clamping table for pressure gauge bending processing according to claim 3, characterized in that: The side of the limit clamp (514) used for clamping is symmetrically provided with a side plate (9), and the surface of the air bag (515) is provided with anti-slip grooves.

5. A clamping table for pressure gauge bending processing according to claim 4, characterized in that: The side wall of the rotating bar (6) is provided with a thread groove which is threadably connected to the inner thread of the inner wall of the connecting shaft (412); the side walls of the rotating bar (6) and the connecting shaft (412) which are close to each other are respectively smooth; the side wall of the rotating bar (6) which is close to the connecting shaft (412) is provided with an end groove (101) which is connected to the thread groove; a sliding sleeve (102) is slidably provided on the first vertical rail (411); one end of the connecting shaft (412) is fixedly assembled with the inner wall of the sliding sleeve (102); one end of the sliding sleeve (102) slides through the side wall of the clamping platform (1) and extends outside.

6. A clamping table for pressure gauge bending processing according to claim 5, characterized in that: The sliding sleeve (102) is rotatably provided with a handle (103) at one end thereof, the inner side of the handle (103) is assembled and connected with the rotating bar (6) via a telescopic shaft (104), and the lower end of the first vertical rail (411) is assembled and connected with the sliding sleeve (102) via a cylinder (107).

7. A clamping table for pressure gauge bending processing according to claim 6, characterized in that: The sliding sleeve (102) is provided with a fixed sleeve (105) at one outer end, the inner side of the fixed sleeve (105) is provided with a gear ring (106) for sliding engagement, and the outer side of the handle (103) is provided with a gear ring (106) for sliding engagement with the inner wall of the gear ring (106).

8. The clamping table for pressure gauge bending processing according to claim 2, characterized in that: The center position of the rotating disk (511) is rotatably sleeved on the outer wall of the rotating bar (6) through a center ring (111), the inner side of the center ring (111) is provided with a clamping groove (113), the inner wall of the rotating bar (6) is slidably provided with an inner bar (112), and the inner bar (112) is rotatably provided with a plurality of groups of connecting bars (114) near one end of the center ring (111), the plurality of groups of connecting bars (114) are arranged in an annular distribution and the end faces are rotatably connected to one end inside the rotating bar (6), each group of the connecting bars (114) is hingedly arranged by two hinged bars, the inner bar (112) and the rotating bar (6) are arranged at one end thereof, and a third spring (115) is provided at one end thereof, and the clamping block (7) is rotatably arranged at one end thereof.

9. The clamping table for pressure gauge bending processing according to claim 1, characterized in that: A connecting plate (121) is provided on one side of the clamp body (311), and the connecting plates (121) on the two clamp bodies (311) are arranged to be engaged with each other. A buckle (122) is rotatably provided at the edge of one of the connecting plates (121), and a buckle groove (123) is provided on the other clamp body (311) to be engaged with the buckle (122).

10. A clamping table for pressure gauge bending processing according to claim 9, characterized in that: A slide groove (131) is provided above the clamping platform (1), a screw rod (132) is rotatably provided in the slide groove (131), one end of the screw rod (132) extends to the outside of the clamping platform (1) and is driven to rotate by a motor (133), and the two clamping bodies (311) are arranged up and down, and the lower clamping body (311) is slidably arranged on the slide groove (131) through a slide seat (134), and the slide seat (134) is threadedly sleeved on the screw rod (132).

Images