Automobile pipeline bending tool

Abstract

The present invention relates to the field of pipeline bending, and in particular to an automobile pipeline bending tool. Technical problem: In the existing process of bending a straight conduit into a Z-shaped conduit, the bent portion of the conduit will collapse due to the squeezing of two bending dies. Technical solution: An automobile pipeline bending tool, comprising a tooling table; further comprising a bending assembly, a grinding assembly, and a detection assembly; a bending assembly is connected to the front upper side and the rear upper side of the tooling table; each of the two bending assemblies is connected to a grinding assembly, and the grinding assembly is connected to an arc support block; and a detection assembly is connected to the upper surface of the tooling table. The arc support block is driven by a push rod to move synchronously with the angle change of the front bending portion of the conduit, and the arc support block will continue to support the front bending portion of the conduit, thereby preventing the front bending portion of the conduit from collapsing when squeezed by the first bending die and the second bending die.

Description

Technical Field

[0001] The present invention relates to the field of pipeline bending, in particular to an automobile pipeline bending tool. Background Art

[0002] In the existing process of bending a straight conduit into a Z-shaped conduit, the bent portion of the conduit will collapse due to the squeezing of the two bending dies. In the existing method, the inside of the steel pipe is filled with sand, telescopic steel pipe and other recyclable materials in advance to fill the inside of the conduit to avoid the collapse of the bent portion of the conduit. However, in the method of using sand, it is necessary to first seal one end of the conduit, then fill the sand, and then seal the other end of the conduit. After the conduit is bent into the Z-shaped conduit, it is necessary to release the seals at both ends of the conduit and then pour out the sand. The whole operation process is cumbersome and complicated. In the method of using the telescopic steel pipe, since the telescopic steel pipe has a hollow structure, it is easy to deform when squeezed too much. In the process of bending the bent portion of the conduit by the two bending dies, when the telescopic steel pipe cannot fully support the bent portion of the conduit, the bent portion of the conduit will collapse. At this time, the telescopic steel pipe located at the bent portion of the conduit will also collapse due to the squeezing. At this time, since the telescopic structure of the telescopic steel pipe is damaged and cannot be freely expanded and contracted, it will be stuck in the bent portion of the conduit, making it difficult to remove the telescopic steel pipe.

[0003] During the bending process of the catheter, the outer bend of the bent part is in an overall tensile state, and the inner bend is in an overall compressed state. After the catheter is bent into a Z shape, microcracks will appear on the inner and outer walls of the bent part. When the microcracks are serious, the bent part of the catheter is prone to through-holes. The existing method for detecting through-holes in the bent part of the catheter is to first seal one end of the catheter, and then a gas delivery device injects gas into the entire catheter through the other end of the catheter, so as to judge whether there is a through-hole in the bent part of the catheter by gas pressure. In this process, since the inner and outer walls of the bent part of the catheter are in an overall compressed state of the inner bend, the cracks generated will stick together, and the cracks stuck together will not stick together. The cracks will block the through-hole, thereby affecting the accuracy of whether the bend of the catheter has a through-hole phenomenon. The existing method for grinding the inner wall of the bend of the catheter is to put a grinding ring on the outer cover of the rubber hose and then insert the rubber hose into the catheter. During this insertion process, the rubber hose is bent under the restriction of the L-shaped arc angle of the catheter and fits with the inner wall of the bend of the catheter, so that the grinding ring can grind the inner wall of the bend of the catheter. However, since the bend of the catheter will collapse to varying degrees, the grinding ring cannot completely fit with the inner wall of the bend of the catheter, thereby causing the grinding ring to be unable to grind away all the cracks generated in the inner wall of the bend of the catheter.

[0004] Moreover, since the catheter is long as a whole and the through-holes at the bend of the catheter are usually small, the pressure change generated by injecting gas into the entire catheter is small, making it difficult to determine whether there are through-holes at the bend of the catheter. Summary of the Invention

[0005] In order to overcome the disadvantage that in the existing process of bending a straight conduit into a Z-shaped conduit, the bent portion of the conduit may collapse due to the squeezing of two bending dies, the present invention provides an automobile pipeline bending tool.

[0006] The technical solution of the present invention is: a kind of automobile pipeline bending tool, including a tooling table and an electric clamp; the electric clamp is fixedly connected to the middle part of the tooling table; it also includes a plug, a push rod, a flexible rod, an arc support block, a bending assembly, a grinding assembly and a detection assembly; the front and rear ends of the catheter are both connected to a plug in a pin-type manner, and the two plugs are mirror-symmetrical; the front plug and the rear plug are both fixedly connected to a push rod; the telescopic parts of the front push rod and the rear push rod are each fixedly connected to a flexible rod; the opposite sides of the two flexible rods are each fixedly connected to an arc support block; a bending assembly is connected to the front upper side and the rear upper side of the tooling table; the two bending assemblies are each connected to a grinding assembly, and the grinding assembly is connected to the arc support block; the upper surface of the tooling table is connected to a detection assembly.

[0007] Furthermore, the front bending assembly includes a first moving block, a first C-shaped mounting plate, a second C-shaped mounting plate, a first bending mold, a first motor, a third C-shaped mounting plate, a fixed rod, a second bending mold and a handle; the first moving block is slidably connected to the upper side of the workbench; the first C-shaped mounting plate is fixedly connected to the upper side of the first moving block; the middle part of the first C-shaped mounting plate is rotatably connected to the second C-shaped mounting plate; the middle part of the second C-shaped mounting plate is rotatably connected to the first bending mold; the first motor is provided on the upper side of the first C-shaped mounting plate, and the output shaft of the first motor is fixedly connected to the second C-shaped mounting plate; the third C-shaped mounting plate is movably connected to the upper left part of the second C-shaped mounting plate, and a fixed rod is detachably plugged between the lower left side of the second C-shaped mounting plate and the lower right side of the third C-shaped mounting plate; the middle side of the third C-shaped mounting plate is rotatably connected to the second bending mold; the third C-shaped mounting plate is fixedly connected to the handle; the first bending mold, the third C-shaped mounting plate and the second bending mold are all connected to the grinding assembly.

[0008] Furthermore, the front grinding assembly includes a second motor, a first gear, a second gear, a first arc grinding ring, a second arc grinding ring, a first hollow circular plate, an inner gear ring, a third motor, a third gear and a grinding belt; a second motor is provided on the upper side of the third C-shaped mounting plate, and the output shaft of the second motor is fixedly connected to the second bending mold; the outer surface of the second bending mold is fixedly connected to the first gear; the outer surface of the first bending mold is fixedly connected to the second gear, and the first gear is meshed with the second gear; the outer surface of the second bending mold is fixedly connected to the first arc grinding ring; the outer surface of the first bending mold is fixedly connected to the second arc grinding ring; the front side of the arc support block is rotatably connected to the first hollow circular plate; the inner side of the arc support block is fixedly connected to the inner gear ring; the front side of the arc support block is fixedly connected to the third motor; the output shaft of the third motor is fixedly connected to the third gear, and the third gear is meshed with the inner gear ring; the outer surface of the first hollow circular plate is fixedly connected to the grinding belt.

[0009] Furthermore, the grinding belt has a spiral structure.

[0010] Furthermore, the arc support block is provided with an arc groove.

[0011] Furthermore, the arc support block is provided with an oblique portion.

[0012] Furthermore, the detection assembly includes a mounting frame and a detection unit; the mounting frame is fixed to the upper surface of the workbench; two detection units are connected to the upper side of the mounting frame in a centrally symmetrical manner; the front detection unit is composed of an L-shaped slide rail, a second moving block, a long plate, a second hollow circular plate, a telescopic circular tube, a first air intake pipe, an L-shaped plate, a flexible sleeve, an airbag, a second air intake pipe and an air pressure sensor; the mounting frame is fixed to the L-shaped slide rail; the L-shaped slide rail is slidably connected to two second moving blocks; each of the two second moving blocks is fixed to a long plate; each of the two long plates is fixed to a second hollow circular plate; the two second hollow circular plates are fixed to telescopic circular plates on opposite sides. circular tube; an air pressure sensor is provided on the right front side of the second hollow circular plate on the left; the left side of the telescopic circular tube is connected to the first air intake pipe; a number of L-shaped plates are fixed to the right sides of the second hollow circular plate on the left and the second hollow circular plate on the right; a flexible ring is fixed to several L-shaped plates on the left; another flexible ring is fixed to several L-shaped plates on the right; the two flexible rings are each provided with a hollow conical portion which is larger on the left and smaller on the right, and the two hollow conical portions are oriented in the same direction; an air bag is fixed to the inner side of the two second hollow circular plates, and the air bag is located on the outer surface of the corresponding flexible ring; each of the two air bags is connected to a second air intake pipe.

[0013] Furthermore, both clamps of the electric clamper are provided with a rubber pad.

[0014] Furthermore, the plug is made of rubber, and the diameter of the plug is larger than the diameter of the inner wall of the catheter.

[0015] Furthermore, the interior of the arc support block is a solid structure.

[0016] The beneficial effects of the present invention are as follows: the present invention drives the arc support block to move synchronously with the angle change of the front bending portion of the catheter through the push rod, so that the arc support block will always be at the center point of the line connecting the centers of the circles between the first bending die and the second bending die, and the direction of the arc support block is perpendicular to the line connecting the centers of the circles between the first bending die and the second bending die, so that the arc support block will continue to support the front bending portion of the catheter, thereby preventing the front bending portion of the catheter from collapsing when squeezed by the first bending die and the second bending die;

[0017] The outer wall of the front bending portion of the catheter is polished by the cooperation of the first arc polishing ring and the second arc polishing ring, and the micro cracks generated on the inner wall of the front bending portion of the catheter are polished by the polishing belt. The entire polishing is carried out during the bending process of the front bending portion of the catheter, thereby shortening the overall processing time. In addition, by polishing the inner and outer walls of the front bending portion of the catheter, it is avoided that the cracks generated by the inner and outer walls of the front bending portion of the catheter are in an overall compressed state of the inner bend, and thus affect the accuracy of whether the front bending portion of the catheter has a through hole.

[0018] By continuously expanding the two airbags and squeezing the corresponding flexible rings, the two flexible rings are made to fit completely with the outer wall of the catheter, avoiding the slight collapse of the front bending part of the catheter, which would cause slight sharp corners to appear on the collapsed edge, resulting in the flexible rings being unable to fit completely with the outer wall of the catheter. By directly detecting the through-hole phenomenon on the front bending part of the catheter, the problem of the through-hole phenomenon occurring in the bending part of the catheter being usually small due to the overall long catheter and the small pressure change, which makes it difficult to judge whether the bending part of the catheter has a through-hole phenomenon, is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the automobile pipeline bending tool disclosed in the present invention;

[0020] Figure 2 This is a schematic diagram of the partial structure disclosed by the automobile pipeline bending tool of the present invention;

[0021] Figure 3 This is a schematic structural diagram of the bending assembly disclosed in the automobile pipeline bending tool of the present invention;

[0022] Figure 4 A state diagram of the bending assembly disclosed in the automobile pipeline bending tool of the present invention;

[0023] Figure 5 This is a schematic structural diagram of the arc support block and the grinding assembly disclosed in the automobile pipeline bending tool of the present invention;

[0024] Figure 6A plan view of the arc support block and the grinding assembly disclosed in the automobile pipeline bending tool of the present invention;

[0025] Figure 7 This is a schematic diagram of the first structure of the detection assembly disclosed in the automobile pipeline bending tool of the present invention;

[0026] Figure 8 This is a schematic diagram of the second structure of the detection assembly disclosed in the automobile pipeline bending tool of the present invention;

[0027] Figure 9 This is a third structural schematic diagram of the detection assembly disclosed in the automobile pipeline bending tool of the present invention.

[0028] Figure numbers: 1- tooling table, 2- electric clamp, 3- mounting frame, 4- plug, 5- push rod, 6- flexible rod, 7- arc support block, 8- guide tube, 111- first moving block, 112- first C-shaped mounting plate, 113- second C-shaped mounting plate, 114- first bending mold, 115- first motor, 116- third C-shaped mounting plate, 117- fixed rod, 118- second bending mold, 119- handle, 201- second motor, 202- first gear, 203- second gear, 204- first arc grinding ring, 205-second arc grinding ring, 206-first hollow circular plate, 207-inner gear ring, 208-third motor, 209-third gear, 2010-grinding belt, 301-L-shaped slide rail, 302-second moving block, 303-long plate, 304-second hollow circular plate, 305-telescopic circular tube, 306-first air inlet pipe, 307-L-shaped plate, 308-flexible collar, 309-airbag, 3010-second air inlet pipe, 3011-air pressure sensor, 7a-arc groove, 7b-oblique portion, 308a-hollow conical portion. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention. Example 1

[0030] A kind of automobile pipeline bending tool, such as Figure 1-5As shown, it includes a workbench 1 and an electric clamper 2; the middle part of the workbench 1 is bolted with an electric clamper 2 for clamping the catheter 8, and the two clamps of the electric clamper 2 are each provided with a rubber pad to prevent the catheter 8 from being squeezed and deformed during the process of the electric clamper 2 clamping the catheter 8; it also includes a plug 4, a push rod 5, a flexible rod 6, an arc support block 7, a bending component, a grinding component and a detection component; the catheter 8 is connected to two plugs 4 in a pin-type manner, and the two plugs 4 are respectively located at the front and rear ends of the catheter 8, and the two plugs 4 are mirror-symmetrical; the front side The plug 4 and the rear plug 4 are both bolted to a push rod 5; the telescopic parts of the front push rod 5 and the rear push rod 5 are each fixed with a flexible rod 6; the front flexible rod 6 and the rear flexible rod 6 are each fixed with an arc support block 7 for supporting the catheter 8 to prevent the catheter 8 from collapsing during the bending process; a bending assembly is connected to the front upper side and the rear upper side of the workbench 1; each of the two bending assemblies is connected to a grinding assembly, and the grinding assembly is connected to the arc support block 7; the upper surface of the workbench 1 is connected to a detection assembly for performing through-hole detection on the bent portion of the catheter 8 after bending.

[0031] The front bending assembly includes a first moving block 111, a first C-shaped mounting plate 112, a second C-shaped mounting plate 113, a first bending die 114, a first motor 115, a third C-shaped mounting plate 116, a fixing rod 117, a second bending die 118 and a handle 119; the upper side of the workbench 1 is slidably connected to the first moving block 111; the upper side of the first moving block 111 is bolted to the first C-shaped mounting plate 112; the middle part of the first C-shaped mounting plate 112 is rotatably connected to the second C-shaped mounting plate 113; the middle part of the second C-shaped mounting plate 113 is rotatably connected to the first bending die 114; the first C-shaped mounting plate 11 A first motor 115 is bolted to the upper side, and the output shaft of the first motor 115 is fixedly connected to the second C-shaped mounting plate 113; a third C-shaped mounting plate 116 is hingedly connected to the upper left portion of the second C-shaped mounting plate 113, and a fixing rod 117 is detachably inserted between the lower left side of the second C-shaped mounting plate 113 and the lower right side of the third C-shaped mounting plate 116; a second bending die 118 is rotatably connected to the middle side of the third C-shaped mounting plate 116; a handle 119 is bolted to the middle left side of the third C-shaped mounting plate 116; the first bending die 114, the third C-shaped mounting plate 116, and the second bending die 118 are all connected to the grinding assembly.

[0032] The specific working of the above embodiment 1 is as follows: first, manually pass one end of the catheter 8 from the front to the back in sequence between the first bending die 114 and the second bending die 118, then pass it through the two clamps of the electric clamper 2, and then pass it between the first bending die 114 and the second bending die 118 at the rear. Then, the electric clamper 2 controls its two clamps to clamp the middle part of the catheter 8. Since the two clamps of the electric clamper 2 are both provided with a rubber pad, the catheter 8 is prevented from being squeezed and deformed during the process of the electric clamper 2 clamping the catheter 8. Then, the two plugs 4 and the parts connected to the plugs 4 are manually clamped. Insert the front and rear ends of the catheter 8, and because the plug 4 is made of rubber and the diameter of the plug 4 is larger than the inner wall diameter of the catheter 8, when the plug 4 is inserted into the port of the catheter 8, the plug 4 is restricted by the catheter 8 to shrink. After the insertion is completed, the plug 4 expands by itself and fits tightly with the inner wall of the catheter 8 to prevent the plug 4 from detaching from the port of the catheter 8 in subsequent work. At this time, the front first bending mold 114, the second bending mold 118 and the arc support block 7 are located at the rear end of the front bending part of the catheter 8, and the rear first bending mold 114, the second bending mold 118 and the arc support block 7 are located at the front end of the rear bending part of the catheter 8, as shown in the figure. Figure 2 The state shown is described below by taking the bending assembly, plug 4, push rod 5, flexible rod 6 and arc support block 7 in the front as an example. First, the output shaft of the first motor 115 drives the second C-shaped mounting plate 113, the third C-shaped mounting plate 116 and the parts connected to the third C-shaped mounting plate 116 to rotate counterclockwise from top to bottom. During this rotation process, the second bending die 118 will continuously squeeze the front bending portion of the catheter 8 from back to front onto the first bending die 114, so that the front bending portion of the catheter 8 is completely fitted with the second bending die 118. In this way, the front side of the catheter 8 is bent by the cooperation of the first bending die 114 and the second bending die 118, and the front side of the catheter 8 is bent into an L shape, as shown in FIG. Figure 4In the state shown, it should be noted that during this bending process, the telescopic part of the push rod 5 contracts, driving the flexible rod 6 and the arc support block 7 to move in the direction close to the plug 4, so that the arc support block 7 moves synchronously with the second bending mold 118 to squeeze the front bending part of the catheter 8 to the first bending mold 114. During this movement, since the push rod 5 and the parts connected to the push rod 5 are all in the catheter 8, when the second bending mold 118 squeezes the front bending part of the catheter 8 to the first bending mold 114, the push rod 5 and the parts connected to the push rod 5 will rotate following the angle change of the front bending part of the catheter 8, and since the arc support block 7 moves synchronously with the angle change of the front bending part of the catheter 8, the arc support block 7 will always be at the center point of the line connecting the centers of the circles between the first bending mold 114 and the second bending mold 118, and the plane direction of the arc support block 7 is between the first bending mold 114 and the second bending mold 118. When the center line of the circle is perpendicular to the center line of the circle, the arc support block 7 will continue to support the front bending part of the catheter 8, thereby preventing the front bending part of the catheter 8 from collapsing when being squeezed by the first bending mold 114 and the second bending mold 118. Moreover, since the interior of the arc support block 7 is a solid structure, it will not be deformed by squeezing, and then, in the process of the first bending mold 114 and the second bending mold 118 cooperating with each other to bend the bending part of the catheter 8, the arc support block 7 is prevented from being deformed, resulting in the arc support block 7 being unable to continue to support the catheter 8. At the same time, the rear bending assembly, the plug 4, the push rod 5, the flexible rod 6 and the arc support block 7 work in the same way as above, and the first bending mold 114 and the second bending mold 118 cooperate with each other to quickly bend the rear bending part of the catheter 8, so that the rear side of the catheter 8 is bent into an L shape, and the catheter 8 is bent into a Z shape as a whole, and the front bending part of the catheter 8 is continuously supported by the arc support block 7. Example 2

[0033] On the basis of Example 1, Figure 1-6As shown, the front grinding assembly includes a second motor 201, a first gear 202, a second gear 203, a first arc grinding ring 204, a second arc grinding ring 205, a first hollow circular plate 206, an inner gear ring 207, a third motor 208, a third gear 209 and a grinding belt 2010; the upper side of the third C-shaped mounting plate 116 is bolted to the second motor 201, and the output shaft of the second motor 201 is fixed to the second bending mold 118; the upper side of the outer surface of the second bending mold 118 is fixed to the first gear 202; the upper side of the outer surface of the first bending mold 114 is fixed to the second gear 203, and the first gear 202 is meshed with the second gear 203; the second bending mold The outer surface of tool 118 is fixed with a first arc grinding ring 204 for grinding the outer wall of the bending portion of the catheter 8; the outer surface of the first bending mold 114 is fixed with a second arc grinding ring 205 for grinding the outer wall of the bending portion of the catheter 8; the front side of the arc support block 7 is rotatably connected to a first hollow circular plate 206; the inner side of the arc support block 7 is fixed with an inner gear ring 207; the front upper side of the arc support block 7 is bolted with a third motor 208; the output shaft of the third motor 208 is fixed with a third gear 209, and the third gear 209 is engaged with the inner gear ring 207; the outer surface of the first hollow circular plate 206 is fixed with a grinding belt 2010 for grinding the inner wall of the bending portion of the catheter 8.

[0034] The grinding belt 2010 is a spiral structure with transportation capacity. When the grinding belt 2010 rotates, the debris produced by it will be transferred toward the direction close to the arc support block 7, thereby preventing the debris produced by the grinding belt 2010 from being always between the grinding belt 2010 and the inner wall of the conduit 8, thereby causing the grinding belt 2010 to be affected by the debris and unable to grind the inner wall of the conduit 8 normally.

[0035] The arc support block 7 is provided with an arc groove 7a for collecting the debris polished by the polishing belt 2010. The debris polished by the polishing belt 2010 is transferred to the arc groove 7a for storage under the drive of the spiral structure, so as to avoid the situation where too much debris polished by the polishing belt 2010 falls inside the front bending part of the catheter 8, which will cause the movement of the arc support block 7 to be obstructed, and the arc support block 7 cannot normally support the front bending part of the catheter 8.

[0036] The arc support block 7 is provided with an inclined portion 7b for increasing the storage area of the arc groove 7a, so as to avoid the situation where when there is too much debris and the arc groove 7a cannot continue to store the debris, the polished debris cannot continue to be stored in the arc groove 7a, causing the excess debris to fall into the inside of the front bending portion of the conduit 8, thereby obstructing the movement of the arc support block 7.

[0037] The specific operation of the above embodiment 2 is as follows: the first motor 115 drives the second bending die 118 to rotate, so that the second bending die 118 continuously squeezes the front bending portion of the catheter 8 from the back to the front onto the first bending die 114. The following is described in terms of the front grinding component, such as Figure 3 As shown, the second bending die 118 and the parts connected to the second bending die 118 are driven to rotate by the second motor 201. At this time, the first gear 202 drives the first bending die 114 and the second arc grinding ring 205 to rotate through the second gear 203. During this rotation process, the first arc grinding ring 204 will continue to grind the outer bend formed on the outer wall of the front bending portion of the catheter 8, so that the micro cracks generated on the outer bend are ground away by the first arc grinding ring 204. The second arc grinding ring 205 will continue to grind the inner bend formed on the outer wall of the front bending portion of the catheter 8, so that the micro cracks generated on the inner bend are ground away by the second arc grinding ring 205.

[0038] At the same time, in the process that the push rod 5 drives the arc support block 7 to continuously support the front bending portion of the catheter 8, as shown in FIG. Figure 5 As shown, the third motor 208 drives the inner gear ring 207 and the parts connected to the inner gear ring 207 to rotate through the third gear 209. During this rotation process, the grinding belt 2010 installed on the first hollow circular plate 206 will grind the inner wall of the front bending portion of the catheter 8. During this process, since the second bending die 118 continuously squeezes the front bending portion of the catheter 8 from back to front onto the first bending die 114, the microcracks generated on the inner wall of the front bending portion of the catheter 8 are continuously generated from back to front, and the arc support block 7 and the parts connected to the arc support block 7 move synchronously with the angle change of the front bending portion of the catheter 8. During the movement, the microcracks generated on the inner wall of the front bending portion of the catheter 8 will be polished away by the grinding belt 2010. In the process of bending the front bending portion of the catheter 8 by the cooperation of the first bending die 114 and the second bending die 118, the outer wall of the front bending portion of the catheter 8 is polished by the cooperation of the first arc polishing ring 204 and the second arc polishing ring 205, and the microcracks generated on the inner wall of the front bending portion of the catheter 8 are polished by the polishing belt 2010. The entire polishing is carried out during the bending process of the front bending portion of the catheter 8, which shortens the overall processing time. In addition, by polishing the inner and outer walls of the front bending portion of the catheter 8, it is avoided that the cracks generated by the inner and outer walls of the front bending portion of the catheter 8 are in an overall compressed state of the inner bend, and thus affect the accuracy of whether there is a through hole in the front bending portion of the catheter 8.

[0039] It should be noted that if Figure 6As shown, since the grinding belt 2010 is a spiral structure, the grinding debris will be transferred toward the direction close to the arc support block 7 when the grinding belt 2010 rotates, thereby preventing the grinding debris of the grinding belt 2010 from being always between the grinding belt 2010 and the inner wall of the conduit 8, thereby causing the grinding belt 2010 to be affected by the debris and unable to grind the inner wall of the conduit 8 normally, and the arc support block 7 is provided with an arc groove 7a for collecting the grinding debris of the grinding belt 2010, and the grinding debris of the grinding belt 2010 is transferred to the arc groove 7a for storage under the drive of the spiral structure, thereby preventing the grinding debris of the grinding belt 2010 from falling too much inside the front bending part of the conduit 8, which will cause the arc support block 8 to be damaged. 7 is obstructed in movement, resulting in the arc support block 7 being unable to support the front side bending portion of the catheter 8 normally, and the arc support block 7 is provided with an inclined portion 7b for increasing the storage area of the arc groove 7a, to avoid when there are too many debris and the arc groove 7a can no longer store the debris, the ground debris can no longer be stored in the arc groove 7a, causing the excess debris to fall into the interior of the front side bending portion of the catheter 8, resulting in the arc support block 7 being obstructed in movement. At the same time, the rear grinding assembly grinds the outer wall of the front side bending portion of the catheter 8 through the cooperation of the first arc grinding ring 204 and the second arc grinding ring 205 in the same manner as above, and grinds the microcracks generated on the inner wall of the front side bending portion of the catheter 8 through the grinding belt 2010. Example 3

[0040] On the basis of Example 2, Figure 1 Figure and Figure 7-9As shown, the detection assembly includes a mounting frame 3 and a detection unit; the mounting frame 3 is bolted to the upper surface of the workbench 1; two detection units are connected to the upper side of the mounting frame 3 in a centrally symmetrical manner; the front detection unit is composed of an L-shaped slide rail 301, a second moving block 302, a long plate 303, a second hollow circular plate 304, a telescopic circular tube 305, a first air intake pipe 306, an L-shaped plate 307, a flexible collar 308, an airbag 309, a second air intake pipe 3010 and an air pressure sensor 3011; the mounting frame 3 is bolted to the L-shaped slide rail 301; the L-shaped slide rail 301 is slidably connected to two second moving blocks 302, and the two second moving blocks 302 are distributed on the left and right; the two second moving blocks 302 are each fixedly connected to a long plate 303; the two long plates 303 are each fixedly connected to a second hollow circular plate 304; the two second hollow circular plates 304 are fixedly connected to the opposite sides with a telescopic circular tube 305; the left second hollow An air pressure sensor 3011 is bolted to the right front side of the circular plate 304; the left side of the telescopic circular tube 305 is connected to the first air inlet pipe 306; four L-shaped plates 307 are fixed to the right sides of the left second hollow circular plate 304 and the right second hollow circular plate 304; the four L-shaped plates 307 on the left are commonly fixed to a flexible ring 308; the four L-shaped plates 307 on the right are commonly fixed to another flexible ring 308; the two flexible rings 308 are each provided with a hollow conical portion 308a which is larger on the left and smaller on the right, and the two hollow conical portions 308a are oriented in the same direction; the inner side of the two second hollow circular plates 304 is fixed with an air bag 309 for pressing the flexible ring 308 so that the flexible ring 308 can fit tightly against the outer wall of the catheter 8, and the air bag 309 is located on the outer surface of the corresponding flexible ring 308; the opposite sides of the two air bags 309 are each connected to a second air inlet pipe 3010.

[0041] The plug 4 is made of rubber, and the diameter of the plug 4 is larger than the diameter of the inner wall of the catheter 8. When the plug 4 is inserted into the port of the catheter 8, the plug 4 is restricted by the catheter 8 and shrinks. After the insertion is completed, the plug 4 expands by itself and fits tightly with the inner wall of the catheter 8, preventing the plug 4 from detaching from the port of the catheter 8 during subsequent work.

[0042] The interior of the arc support block 7 is a solid structure and will not be deformed by being squeezed. Therefore, in the process of bending the bending part of the catheter 8 in cooperation between the first bending mold 114 and the second bending mold 118, the arc support block 7 is prevented from being deformed, which will cause the arc support block 7 to be unable to continue to support the catheter 8.

[0043] The specific operation of the above-mentioned embodiment 3 is as follows: when the conduit 8 is bent into a Z shape as a whole, the front bending assembly is described below. First, the output shaft of the first motor 115 drives the second C-shaped mounting plate 113, the third C-shaped mounting plate 116 and the parts connected to the third C-shaped mounting plate 116 to rotate clockwise from top to bottom to reset, and then the first moving block 111 drives the first C-shaped mounting plate 112 and the parts connected to the first C-shaped mounting plate 112 to move backward, so that the first bending mold 114 and the second bending mold 118 are away from the front bending part of the conduit 8. At the same time, the rear bending assembly drives the first bending mold 114 and the second bending mold 118 away from the rear bending part of the conduit 8 through the first moving block 111 in the same way as above. It should be noted that at this time, the electric clamper 2 still clamps the conduit 8, and then the plugs 4 inserted into the two ends of the conduit 8 and the parts connected to the plugs 4 are manually removed.

[0044] The following describes the detection component in the front, and then the two second moving blocks 302 drive the corresponding long plate 303 and the parts connected to the long plate 303 to move to the left along the sliding groove of the L-shaped plate 307, so that the left flexible ring 308 is at the rearmost side of the front bending part of the catheter 8, the right flexible ring 308 is at the rightmost side of the front bending part of the catheter 8, and the telescopic tube 305 is in the middle of the front bending part of the catheter 8. It should be noted that in this process, if Figure 9As shown, the diameter of the flexible collar 308 is smaller than the inner wall diameter of the conduit 8. When the two flexible collars 308 pass through the end of the conduit 8, since the hollow conical portion 308a is larger on the left and smaller on the right, it has a guiding effect. Under the restriction of the conduit 8, the right side of the flexible collar 308 will expand as a whole. Since the flexible collar 308 is made of flexible material, it will shrink by itself and wrap around the outer wall of the conduit 8. Then the external air pump transmits the gas to the corresponding airbags 309 through the two second air inlet pipes 3010. At this time, the two airbags 309 continue to expand and squeeze the corresponding flexible collar 308, so that the flexible collar 308 is squeezed and shrinks again, so that the two flexible collars 308 are completely fitted with the outer wall of the conduit 8, avoiding the first bending mold 1 14 and the second bending die 118 cooperate with each other to bend the front bending portion of the catheter 8. Although there is an arc support block 7 as a support, since the arc support block 7 can move normally in the catheter 8, the diameter of the arc support block 7 is slightly smaller than the inner wall diameter of the catheter 8. When the catheter 8 is bent into a Z shape as a whole, the front bending portion will collapse slightly, and the collapsed edge will have slight corners. Due to the existence of the corners, the flexible ring 308 will be stretched open by the corners, resulting in the flexible ring 308 being unable to completely fit with the outer wall of the catheter 8. Then, the external conveying equipment conveys gas to the two second hollow circular plates 304, the telescopic circular tube 305, the two flexible rings 308 and the two air bags 3 through the first air inlet pipe 306. 09 cooperate with each other to form a sealed space, when the air pressure sensor 3011 detects that there is no leakage of air pressure in its sealed space, it can be judged that there is no through-hole in the front bending part of the conduit 8, conversely, it can be judged that there is a through-hole in the front bending part of the conduit 8. In this way, by directly detecting the through-hole on the front bending part of the conduit 8, it is avoided that the conduit 8 is long as a whole, and the through-holes in the bending part of the conduit 8 are usually small, and the resulting air pressure change is small, and it is difficult to judge whether there is a through-hole in the bending part of the conduit 8. Then, the two second moving blocks 302 drive the corresponding long plate 303 and the parts connected to the long plate 303 to move left and right for reset. At the same time, the rear detection component is reset by the same In this way, the two second moving blocks 302 drive the corresponding long plates 303 and the parts connected to the long plates 303 to move to the left along the sliding groove of the L-shaped plate 307, so that the telescopic tube 305 is in the middle of the rear bend of the catheter 8, and then the two air bags 309 continuously expand and squeeze the corresponding flexible rings 308, so that the two flexible rings 308 are completely in contact with the outer wall of the catheter 8, and then the external conveying equipment conveys the gas through the first air inlet pipe 306 to the sealed space formed by the cooperation of the two second hollow circular plates 304, the telescopic tube 305, the two flexible rings 308 and the two air bags 309, and the air pressure sensor 3011 detects the air pressure in the sealed space to determine whether there is a leakage in the rear bend of the catheter 8.

[0045] After the inspection is completed, the two fixing rods 117 are first manually removed. At this time, the two third C-shaped mounting plates 116 are released from the corresponding second C-shaped mounting plates 113. Then, the corresponding third C-shaped mounting plates 116 and the parts connected to the third C-shaped mounting plates 116 are manually driven to rotate upward through the two handles 119 to move the second bending mold 118 away from the conduit 8. Then the electric clamper 2 releases the clamping of the conduit 8, and finally the conduit 8 is manually removed.

[0046] The above embodiments are provided to persons familiar with the art for implementing or using the present invention. Personnel familiar with the art may make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the scope of protection of the present invention is not limited to the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.

Claims

1. An automobile pipeline bending tool, comprising a tooling platform (1) and an electric clamp (2); the electric clamp (2) is fixedly connected to the upper middle portion of the tooling platform (1); and is characterized in that: The invention also includes a plug (4), a push rod (5), a flexible rod (6), an arc support block (7), a bending assembly, a grinding assembly and a detection assembly; the front end and the rear end of the catheter (8) are both connected to a plug (4) in a pin-type manner, and the two plugs (4) are mirror-symmetrical; the front plug (4) and the rear plug (4) are both fixedly connected to a push rod (5); the telescopic parts of the front push rod (5) and the rear push rod (5) are each fixedly connected to a flexible rod (6); the opposite sides of the two flexible rods (6) are each fixedly connected to an arc support block (7); the tooling table (1) The front upper side and the rear upper side are both connected to a bending assembly; each of the two bending assemblies is connected to a grinding assembly, and the grinding assembly is connected to the arc support block (7); the upper surface of the tooling table (1) is connected to a detection assembly; the front bending assembly includes a first moving block (111), a first C-shaped mounting plate (112), a second C-shaped mounting plate (113), a first bending die (114), a first motor (115), a third C-shaped mounting plate (116), a fixing rod (117), a second bending die (118) and a handle (119 The upper side of the tooling table (1) is slidably connected to a first moving block (111); the upper side of the first moving block (111) is fixedly connected to a first C-shaped mounting plate (112); the middle portion of the first C-shaped mounting plate (112) is rotatably connected to a second C-shaped mounting plate (113); the middle portion of the second C-shaped mounting plate (113) is rotatably connected to a first bending die (114); a first motor (115) is provided on the upper side of the first C-shaped mounting plate (112), and the output shaft of the first motor (115) is fixedly connected to the second C-shaped mounting plate (113); the second C The upper left portion of the second C-shaped mounting plate (113) is movably connected to a third C-shaped mounting plate (116); a fixing rod (117) is detachably connected between the lower left side of the second C-shaped mounting plate (113) and the lower right side of the third C-shaped mounting plate (116); a second bending die (118) is rotatably connected to the middle side of the third C-shaped mounting plate (116); a handle (119) is fixed to the third C-shaped mounting plate (116); the first bending die (114), the third C-shaped mounting plate (116), and the second bending die (118) are all connected to the grinding assembly.

2. The automobile pipeline bending tool according to claim 1, characterized in that: The front grinding assembly comprises a second motor (201), a first gear (202), a second gear (203), a first arc grinding ring (204), a second arc grinding ring (205), a first hollow circular plate (206), an inner gear ring (207), a third motor (208), a third gear (209) and a grinding belt (2010); the second motor (201) is arranged on the upper side of the third C-shaped mounting plate (116), and the output shaft of the second motor (201) is fixedly connected to the second bending mold (118); the outer surface of the second bending mold (118) is fixedly connected to the first gear (202); the outer surface of the first bending mold (114) is fixedly connected to the second gear (203), and the third motor (208) is fixedly connected to the output shaft of the second motor (209) and the second bending mold (118). A gear (202) is meshed with a second gear (203); a first arc grinding ring (204) is fixedly connected to the outer surface of the second bending die (118); a second arc grinding ring (205) is fixedly connected to the outer surface of the first bending die (114); a first hollow circular plate (206) is rotatably connected to the front side of the arc support block (7); an inner gear ring (207) is fixedly connected to the inner side of the arc support block (7); a third motor (208) is fixedly connected to the front side of the arc support block (7); an output shaft of the third motor (208) is fixedly connected to a third gear (209), and the third gear (209) is meshed with the inner gear ring (207); and a grinding belt (2010) is fixedly connected to the outer surface of the first hollow circular plate (206).

3. The automobile pipeline bending tool according to claim 2, characterized in that: The grinding belt (2010) has a spiral structure.

4. The automobile pipeline bending tool according to claim 2, characterized in that: The circular arc support block (7) is provided with a circular arc groove (7a).

5. The automobile pipeline bending tool according to claim 2, characterized in that: The arc support block (7) is provided with an oblique portion (7b).

6. The automobile pipeline bending tool according to claim 2, characterized in that: The detection assembly includes a mounting frame (3) and a detection unit; the upper surface of the workbench (1) is fixedly connected to the mounting frame (3); the upper side of the mounting frame (3) is connected to two detection units in a centrally symmetrical manner; the front detection unit is composed of an L-shaped slide rail (301), a second moving block (302), a long plate (303), a second hollow circular plate (304), a telescopic circular tube (305), a first air intake pipe (306), an L-shaped plate (307), a flexible collar (308), an air bag (309), a second air intake pipe (3010) and an air pressure sensor (3011); the mounting frame (3) is fixedly connected to the L-shaped slide rail (301); the L-shaped slide rail (301) is slidably connected to the two second moving blocks (302); the two second moving blocks (302) are each fixedly connected to a long plate (303); the two long plates (303) are each fixedly connected to a second hollow circular plate (304); the two second hollow circular plates (304) are fixedly connected to a telescopic circular tube on opposite sides. a circular tube (305); an air pressure sensor (3011) is provided on the right front side of the second hollow circular plate (304) on the left side; a first air inlet pipe (306) is connected to the left side of the telescopic circular tube (305); a plurality of L-shaped plates (307) are fixedly connected to the right sides of the second hollow circular plate (304) on the left side and the second hollow circular plate (304) on the right side; a flexible ring (308) is fixedly connected to the plurality of L-shaped plates (307) on the left side; a plurality of L-shaped plates (307) on the right side ) are fixedly connected to another flexible sleeve (308); the two flexible sleeves (308) are each provided with a hollow conical portion (308a) which is larger on the left and smaller on the right, and the two hollow conical portions (308a) are oriented in the same direction; an air bag (309) is fixedly connected to the inner side of each of the two second hollow circular plates (304), and the air bag (309) is located on the outer surface of the corresponding flexible sleeve (308); the two air bags (309) are each connected to a second air inlet pipe (3010).

7. The automobile pipeline bending tool according to claim 1, characterized in that: Both clamps of the electric clamp (2) are provided with a rubber pad.

8. The automobile pipeline bending tool according to claim 1, characterized in that: The plug (4) is made of rubber, and the diameter of the plug (4) is larger than the inner wall diameter of the conduit (8).

9. The automobile pipeline bending tool according to claim 2, characterized in that: The interior of the arc support block (7) is a solid structure.

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