A straightening device for aluminum-aluminum composite internal threaded pipes

Abstract

This utility model discloses a straightening device for aluminum-aluminum composite internally threaded pipes, including an adjustment mechanism and a straightening mechanism. The adjustment mechanism includes a base, a column, a fixed seat, a vertical plate, a slide rail, a lifting seat, and a sliding seat. An assembly plate is installed on the side of the lifting seat, and an assembly frame is fixedly installed on the assembly plate. The straightening mechanism is fixedly installed on the assembly frame. The straightening mechanism includes a horizontal plate, a vertical plate, a drive shaft, a support roller, a first mounting groove, and a first mounting block. An assembly shaft is installed through the first mounting block, and a pressure roller is fixedly installed at the end of the assembly shaft. The adjustment mechanism of this utility model can adjust the height of the straightening mechanism, thereby facilitating the adaptation of the loading and unloading ends of the straightening mechanism to different conditions in the workshop. The straightening mechanism can press and convey straightened internally threaded pipes of different diameters. At the same time, the locking component can clamp the internally threaded pipe through the guide block when necessary, thereby achieving locking.

Description

Technical Field

[0001] This utility model relates to the field of internal threaded pipe processing, specifically to an aluminum-aluminum composite internal threaded pipe straightening device. Background Technology

[0002] Various equipment is used in the production and processing of aluminum-aluminum composite internally threaded pipes. Among them, a straightening device is used to straighten the produced internally threaded pipes to ensure subsequent use. Conventional straightening generally uses fixed support rollers and pressure rollers to crush and convey the pipes to achieve straightening. However, the feeding height of such equipment cannot be adjusted, and a special receiving device is required at the unloading point. At the same time, the roller conveyor used for straightening is often not easily adjustable, so it cannot adapt well to the straightening operation of internal threads of different pipe diameters. Furthermore, it cannot quickly lock the pipe in case of special circumstances during the use of the equipment.

[0003] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0004] The purpose of this invention is to provide an aluminum-aluminum composite internal threaded pipe straightening device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A straightening device for aluminum-aluminum composite internally threaded pipes includes an adjusting mechanism on which a straightening mechanism is mounted. The adjusting mechanism includes a base, a column on top of the base, a fixed seat on the outside of the column, a vertical plate on one side of the fixed seat, a slide rail on the side of the vertical plate, a lifting seat on the outside of the vertical plate, a slide block on the outer wall of the lifting seat, the slide block being slidably mounted on the slide rail, an assembly plate on the side of the lifting seat, an assembly frame fixedly mounted on the assembly plate, and the straightening mechanism fixedly mounted on the assembly frame. The straightening mechanism includes a horizontal plate on top of the assembly frame, a vertical plate on one side of the top of the horizontal plate, a drive shaft on the vertical plate, a support roller at the end of the drive shaft, a first mounting groove on the vertical plate, a first mounting block in the first mounting groove, an assembly shaft through the first mounting block, and a pressure roller fixedly mounted at the end of the assembly shaft.

[0007] Furthermore, a stop block is fixedly installed on the side of the vertical plate, and the stop block is located at both ends of the slide rail. A lifting cylinder is installed at the bottom of the vertical plate, and the output shaft end of the lifting cylinder is fixedly connected to the end of the lifting seat.

[0008] Furthermore, the upright plate and the horizontal plate are fixedly connected by a reinforcing plate. The upright plate has a strip groove, in which a strip frame is installed. A support wheel is rotatably installed on the strip frame. The upright plate also has a second mounting groove, in which a second mounting block is installed. A pressure wheel is rotatably installed on the second mounting block. The pressure wheel and the support wheel are arranged alternately.

[0009] Furthermore, a first fixing plate is fixedly installed on the top of the first mounting groove, a first adjusting rod is installed through the first fixing plate, the bottom of the first adjusting rod is rotatably installed on the first mounting block, and first sliding grooves are opened on both sides of the first mounting block, and the first sliding grooves are slidably connected to the side walls of the first mounting groove.

[0010] Furthermore, a driven gear is fixedly installed at the end of the assembly shaft away from the pressure roller, and a driving gear is fixedly installed on the drive shaft. The driving gear meshes with the driven gear. An outer protective shell is also fixedly installed on the outer wall of the vertical plate. The outer protective shell covers the outside of the driving gear and the driven gear. The end of the drive shaft passes through the outer protective shell, and a motor is installed on the horizontal plate. The output end of the motor is connected to a reducer, and the end of the drive shaft is connected to the output end of the reducer.

[0011] Furthermore, a second fixing plate is fixedly installed on the top of the second mounting groove, and a second adjusting rod is installed through the second fixing plate. The bottom end of the second adjusting rod is rotatably installed on the second mounting block. A second sliding groove is provided on the outer wall of the second mounting block, and the second sliding groove is slidably connected to the two side walls of the second mounting groove.

[0012] Furthermore, an auxiliary block is fixedly installed on the upright plate. The auxiliary block has through holes and is located on both sides between the pressure roller and the support roller.

[0013] Furthermore, a locking assembly is fixedly installed at one end of the upright plate near the auxiliary block. The locking assembly includes a side plate, with a through opening at the center of one end of the side plate. A guide rail symmetrically arranged along the through opening is fixedly installed on the side of the side plate, and a guide block is slidably installed on the guide rail. A notch is opened at one end of the guide block facing the center of the side plate.

[0014] Furthermore, the side plate is symmetrically equipped with a clamping plate, and an adjusting plate is slidably arranged between the clamping plates. A notch is opened at the center of the end of the adjusting plate near the through-hole, and strip-shaped holes are symmetrically opened on the adjusting plate. A guide post is fixedly installed on the guide block, and the guide post is slidably arranged in the strip-shaped hole.

[0015] Furthermore, a slot is formed at the center of the end of the adjusting plate away from the notch, and a locking block is engaged in the slot. An adjusting cylinder is installed at the end of the side plate away from the notch, and the output shaft end of the adjusting cylinder is fixedly connected to the locking block. By activating the adjusting cylinder, the locking block can be moved, which in turn causes the adjusting plate to move and adjust through the slot.

[0016] Compared with the prior art, the present invention has the following advantages: The present invention has a reasonable structure and is easy to use. The adjustment mechanism can adjust the height of the straightening mechanism, so that the loading and unloading ends of the straightening mechanism can be adapted to different conditions in the workshop. The installation method of the pressure roller and pressure wheel of the straightening mechanism has been changed, so that their height can be adjusted accordingly. This allows for the pressing and conveying straightening of internally threaded pipes of different diameters. At the same time, the locking component can also clamp the internally threaded pipe through the guide block when necessary, thereby achieving locking. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of an aluminum-aluminum composite internal threaded pipe straightening device according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the adjustment mechanism in an aluminum-aluminum composite internal threaded pipe straightening device according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the vertical plate in an aluminum-aluminum composite internal threaded pipe straightening device according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the lifting seat in an aluminum-aluminum composite internal threaded pipe straightening device according to an embodiment of the present utility model;

[0022] Figure 5 This is a structural schematic diagram of the straightening mechanism in an aluminum-aluminum composite internal threaded pipe straightening device according to an embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of the back structure of the straightening mechanism in an aluminum-aluminum composite internal threaded pipe straightening device according to an embodiment of the present utility model.

[0024] Figure 7 This is a schematic diagram of the structure of the upright plate in an aluminum-aluminum composite internal threaded pipe straightening device according to an embodiment of the present utility model;

[0025] Figure 8 This is a schematic diagram of the structure of the second mounting block in an aluminum-aluminum composite internal threaded pipe straightening device according to an embodiment of the present utility model;

[0026] Figure 9 This is a schematic diagram of the structure of the strip frame in an aluminum-aluminum composite internal threaded pipe straightening device according to an embodiment of the present utility model;

[0027] Figure 10 This is a schematic diagram of the structure of the first mounting block in an aluminum-aluminum composite internal threaded pipe straightening device according to an embodiment of the present utility model;

[0028] Figure 11 This is a schematic diagram of the locking component in an aluminum-aluminum composite internal threaded pipe straightening device according to an embodiment of the present utility model;

[0029] Figure 12 This is a schematic diagram of the side plate in an aluminum-aluminum composite internal threaded pipe straightening device according to an embodiment of the present utility model;

[0030] Figure 13 This is a schematic diagram of the structure of the adjusting plate in an aluminum-aluminum composite internal threaded pipe straightening device according to an embodiment of the present utility model;

[0031] Figure 14 This is a schematic diagram of the guide block in an aluminum-aluminum composite internal threaded pipe straightening device according to an embodiment of the present utility model.

[0032] Figure label:

[0033] 1. Adjustment mechanism; 100. Base; 101. Column; 102. Fixed seat; 103. Vertical plate; 104. Slide rail; 105. Stop block; 106. Lifting seat; 107. Slide block; 108. Assembly plate; 109. Assembly frame; 110. Lifting cylinder; 2. Straightening mechanism; 200. Horizontal plate; 201. Vertical plate; 202. Reinforcing plate; 203. Motor; 204. Reducer; 205. Drive shaft; 206. Support roller; 207. First mounting groove; 208. First mounting block; 209. First slide groove; 210. Assembly shaft; 211. Pressure roller; 212. First fixed plate; 213. First adjusting rod; 214. From 215. Drive gear; 216. Outer housing; 217. Strip groove; 218. Strip frame; 219. Support wheel; 220. Second mounting groove; 221. Second mounting block; 222. Second sliding groove; 223. Pressure roller; 224. Second fixing plate; 225. Second adjusting rod; 226. Auxiliary block; 227. Through hole; 228. Locking assembly; 229. Side plate; 230. Through opening; 231. Guide rail; 232. Guide block; 233. Notch; 234. Adjusting plate; 235. Notch; 236. Strip hole; 237. Guide post; 238. Slot; 239. Slot; 240. Slot plate; 241. Adjusting cylinder. Detailed Implementation

[0034] The utility model will now be further described with reference to the accompanying drawings and specific embodiments:

[0035] Please see Figure 1-4 According to an embodiment of the present invention, an aluminum-aluminum composite internal threaded pipe straightening device includes an adjusting mechanism 1, on which a straightening mechanism 2 is mounted. The adjusting mechanism 1 includes a base 100, a column 101 fixedly mounted on the top of the base 100, a fixed seat 102 fixedly mounted on the outside of the column 101, a vertical plate 103 arranged along the length direction of the column 101 fixedly mounted on one side of the fixed seat 102, a slide rail 104 fixedly mounted on the side of the vertical plate 103 away from the column 101, a lifting seat 106 is also provided on the outside of the vertical plate 103, a slide seat 107 is fixedly mounted on the outer wall of the lifting seat 106, the slide seat 107 is slidably mounted on the slide rail 104, an assembly plate 108 is fixedly mounted on the side of the lifting seat 106 away from the slide seat 107, an assembly frame 109 is fixedly mounted on the assembly plate 108, and the straightening mechanism 2 is fixedly mounted on the assembly frame 109.

[0036] The lifting seat 106 can move along the length of the slide rail 104 via the slide seat 107, thereby enabling height adjustment of the assembly plate 108 and the assembly frame 109, and ultimately enabling height adjustment of the straightening mechanism 2 on the assembly frame 109. This allows it to adapt to the height of incoming and unloading materials in the workshop, improving the adaptability of the device.

[0037] A stop block 105 is also fixedly installed on the side of the vertical plate 103 facing the lifting seat 106. The stop block 105 is located at both ends of the slide rail 104. The stop block 105 can limit the sliding of the slide block 107 and prevent the slide block 107 from sliding out of the slide rail 104.

[0038] A lifting cylinder 110 is fixedly installed on the bottom side of the vertical plate 103, and the output shaft end of the lifting cylinder 110 is fixedly connected to the end of the lifting seat 106. The lifting cylinder 110 can realize the automatic lifting and adjustment of the lifting seat 106.

[0039] Please see Figure 5-10The straightening mechanism 2 includes a horizontal plate 200 fixedly installed on the top of the assembly frame 109. A vertical plate 201 is fixedly installed on the top side of the horizontal plate 200 away from the lifting seat 106. A drive shaft 205 is rotatably mounted on the vertical plate 201. A support roller 206 is fixedly installed at the end of the drive shaft 205 away from the horizontal plate 200. A first mounting groove 207 is formed on the vertical plate 201 directly above the drive shaft 205. A first mounting block 208 is installed in the first mounting groove 207. An assembly shaft 210 is installed through the first mounting block 208. A pressure roller 211 is fixedly installed at the end of the assembly shaft 210, positioned directly above the support roller 206. The internally threaded tube to be straightened is passed between the pressure roller 211 and the support roller 206. The pressing action of the pressure roller 211 and the support roller 206 provides a foundation for subsequent straightening, and the drive roller 206 also provides power for conveying the internally threaded tube.

[0040] The upright plate 201 and the horizontal plate 200 are also fixedly connected by a reinforcing plate 202. The reinforcing plate 202 can increase the installation strength of the upright plate 201.

[0041] The upright plate 201 has a strip groove 217, within which a strip frame 218 is fixedly installed. A support wheel 219 is rotatably mounted on the strip frame 218. The upright plate 201 also has a second mounting groove 220 located above the strip groove 217. A second mounting block 221 is installed within the second mounting groove 220, and a pressure wheel 223 is rotatably mounted on the second mounting block 221. The pressure wheel 223 and the support wheel 219 are arranged alternately. The internally threaded tube, after being pressed and conveyed by the pressure roller 211 and the support roller 206, can be fed between the support wheel 219 and the pressure wheel 223, allowing the support wheel 219 and the pressure wheel 223 to convey and straighten the internally threaded tube.

[0042] A first fixing plate 212 is fixedly installed on the top of the first mounting groove 207. A first adjusting rod 213 is installed through the first fixing plate 212. The bottom of the first adjusting rod 213 is rotatably mounted on the first mounting block 208. The first mounting block 208 has first sliding grooves 209 on both sides, and the first sliding grooves 209 are slidably connected to the side walls of the first mounting groove 207. The position of the first mounting block 208 in the first mounting groove 207 can be adjusted by the first adjusting rod 213, thereby changing the distance between the pressure roller 211 and the support roller 206 to adapt to internally threaded pipes of different diameters.

[0043] A driven gear 214 is fixedly installed at the end of the assembly shaft 210 away from the pressure roller 211. A driving gear 215 is fixedly installed on the drive shaft 205. The driving gear 215 meshes with the driven gear 214. An outer protective shell 216 is also fixedly installed on the outer wall of the vertical plate 201. The outer protective shell 216 covers the outside of the driving gear 215 and the driven gear 214. The end of the drive shaft 205 is set through the outer protective shell 216. A motor 203 is installed on the horizontal plate 200. The output end of the motor 203 is connected to a reducer 204. The end of the drive shaft 205 is connected to the output end of the reducer 204. When the motor 203 is started, the motor 203 can drive the drive shaft 205 to rotate through the reducer 204. When the drive shaft 205 rotates, it can drive the support roller 206 to rotate, and at the same time drive the driven gear 214 to rotate through the drive gear 215. The driven gear 214 then drives the assembly shaft 210 to rotate, thereby realizing the synchronous rotation of the pressure roller 211.

[0044] A second fixing plate 224 is fixedly installed on the top of the second mounting groove 220. A second adjusting rod 225 is installed through the second fixing plate 224. The bottom end of the second adjusting rod 225 is rotatably mounted on the second mounting block 221. A second sliding groove 222 is formed on the outer wall of the second mounting block 221, and the second sliding groove 222 is slidably connected to the two side walls of the second mounting groove 220. The position of the second mounting block 221 can be adjusted by the second adjusting rod 225, thereby changing the distance between the pressure roller 223 and the support roller 219.

[0045] An auxiliary block 226 is also fixedly installed on the upright plate 201. The auxiliary block 226 has a through hole 227 and is located on both sides between the pressure roller 211 and the support roller 206. The through hole 227 on the auxiliary block 226 can provide a passage for the internally threaded tube, thereby ensuring that the internally threaded tube can smoothly enter between the pressure roller 211 and the support roller 206, and ensuring that it can subsequently enter between the support roller 219 and the pressure roller 223.

[0046] Please see Figure 11-14 A locking assembly 228 is fixedly installed on one end of the upright plate 201 near the auxiliary block 226. The locking assembly 228 includes a side plate 229. A through-hole 230 is opened at the center of one end of the side plate 229. A guide rail 231 symmetrically arranged along the through-hole 230 is fixedly installed on the side of the side plate 229. A guide block 232 is slidably installed on the guide rail 231. A notch 233 is opened at the end of the guide block 232 facing the center of the side plate 229. The internally threaded tube can be fed into the through hole 227 in the auxiliary block 226 through the through-hole 230. By changing the position of the guide block 232 on the guide rail 231, the distance between the two guide blocks 232 can be changed. When the two guide blocks 232 are close together, the outer wall of the internally threaded tube can be positioned by the notch 233, and locking can be achieved when necessary.

[0047] The side plate 229 is also symmetrically equipped with clamping plates 240, and an adjusting plate 234 is slidably arranged between the clamping plates 240. The adjusting plate 234 has a notch 235 at the center of one end near the through-hole 230, and also has symmetrically arranged strip holes 236. A guide post 237 is fixedly installed on the guide block 232, and the guide post 237 is slidably arranged in the strip hole 236. Pushing the adjusting plate 234 allows the adjusting plate 234 to drive the guide post 237 to move through the strip hole 236, which in turn causes the guide post 237 to drive the guide block 232 to slide on the guide rail 231.

[0048] The adjusting plate 234 has a slot 238 at its center at the end furthest from the notch 235, and a locking block 239 is engaged in the slot 238. An adjusting cylinder 241 is installed at the end of the side plate 229 furthest from the passage 230, and the output shaft end of the adjusting cylinder 241 is fixedly connected to the locking block 239. By activating the adjusting cylinder 241, the locking block 239 can be moved, which in turn causes the adjusting plate 234 to move and adjust through the slot 238.

[0049] Through the above-described solution of this utility model, the structure of this utility model is reasonable and easy to use. The adjustment mechanism 1 can adjust the height of the straightening mechanism 2, so that the loading and unloading ends of the straightening mechanism 2 can be adapted to different conditions in the workshop. The installation method of the pressure roller 211 and pressure wheel 223 of the straightening mechanism 2 has been changed, so that their height can be adjusted accordingly. This allows for the pressing and conveying of internally threaded pipes of different diameters. At the same time, the locking component 228 can also clamp the internally threaded pipe through the guide block 232 when necessary, thereby achieving locking.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A straightening device for aluminum-aluminum composite internally threaded pipes, characterized in that, The system includes an adjustment mechanism (1), on which a straightening mechanism (2) is mounted. The adjustment mechanism (1) includes a base (100), on which a column (101) is mounted. A fixed seat (102) is mounted on the outside of the column (101). A vertical plate (103) is mounted on one side of the fixed seat (102). A slide rail (104) is mounted on the side of the vertical plate (103). A lifting seat (106) is also provided on the outside of the vertical plate (103). A slide (107) is mounted on the outer wall of the lifting seat (106). The slide (107) is slidably mounted on the slide rail (104). An assembly plate (108) is mounted on the side of the lifting seat (106). An assembly frame (109) is fixedly installed on the top. The straightening mechanism (2) is fixedly installed on the assembly frame (109). The straightening mechanism (2) includes a horizontal plate (200) installed on the top of the assembly frame (109). A vertical plate (201) is installed on one side of the top of the horizontal plate (200). A drive shaft (205) is installed on the vertical plate (201). A support roller (206) is installed at the end of the drive shaft (205). A first mounting groove (207) is opened on the vertical plate (201). A first mounting block (208) is installed in the first mounting groove (207). An assembly shaft (210) is installed through the first mounting block (208). A pressure roller (211) is fixedly installed at the end of the assembly shaft (210).

2. The aluminum-aluminum composite internal threaded pipe straightening device according to claim 1, characterized in that, The vertical plate (103) is also fixedly installed with a stop block (105) on its side. The stop block (105) is located at both ends of the slide rail (104). A lifting cylinder (110) is installed at the bottom of the vertical plate (103). The output shaft end of the lifting cylinder (110) is fixedly connected to the end of the lifting seat (106).

3. The aluminum-aluminum composite internal threaded pipe straightening device according to claim 2, characterized in that, The upright plate (201) and the horizontal plate (200) are also fixedly connected by a reinforcing plate (202). The upright plate (201) is provided with a strip groove (217), and a strip frame (218) is installed in the strip groove (217). A support wheel (219) is rotatably installed on the strip frame (218). The upright plate (201) is also provided with a second mounting groove (220), and a second mounting block (221) is installed in the second mounting groove (220). A pressure wheel (223) is rotatably installed on the second mounting block (221). The pressure wheel (223) and the support wheel (219) are arranged alternately.

4. An aluminum-aluminum composite internally threaded pipe straightening device according to claim 3, characterized in that, A first fixing plate (212) is fixedly installed on the top of the first mounting groove (207). A first adjusting rod (213) is installed through the first fixing plate (212). The bottom of the first adjusting rod (213) is rotatably installed on the first mounting block (208). A first sliding groove (209) is provided on both sides of the first mounting block (208). The first sliding groove (209) is slidably connected to the two side walls of the first mounting groove (207).

5. An aluminum-aluminum composite internally threaded pipe straightening device according to claim 4, characterized in that, A driven gear (214) is fixedly installed at the end of the assembly shaft (210) away from the pressure roller (211). A driving gear (215) is fixedly installed on the drive shaft (205). The driving gear (215) meshes with the driven gear (214). An outer shell (216) is also fixedly installed on the outer wall of the vertical plate (201). The outer shell (216) covers the outside of the driving gear (215) and the driven gear (214). The end of the drive shaft (205) passes through the outer shell (216). A motor (203) is installed on the horizontal plate (200). The output end of the motor (203) is connected to a reducer (204). The end of the drive shaft (205) is connected to the output end of the reducer (204).

6. An aluminum-aluminum composite internally threaded pipe straightening device according to claim 5, characterized in that A second fixing plate (224) is fixedly installed on the top of the second mounting groove (220). A second adjusting rod (225) is installed through the second fixing plate (224). The bottom end of the second adjusting rod (225) is rotatably installed on the second mounting block (221). A second sliding groove (222) is provided on the outer wall of the second mounting block (221). The second sliding groove (222) is slidably connected to the two side walls of the second mounting groove (220).

7. The aluminum-aluminum composite internal threaded pipe straightening device according to claim 6, characterized in that, An auxiliary block (226) is also fixedly installed on the upright plate (201). The auxiliary block (226) has a through hole (227) and is located on both sides between the pressure roller (211) and the support roller (206).

8. An aluminum-aluminum composite internally threaded pipe straightening device according to claim 7, characterized in that A locking assembly (228) is fixedly installed on one end of the upright plate (201) near the auxiliary block (226). The locking assembly (228) includes a side plate (229). A through-hole (230) is opened at the center of one end of the side plate (229). A guide rail (231) symmetrically arranged along the through-hole (230) is fixedly installed on the side of the side plate (229). A guide block (232) is slidably installed on the guide rail (231). A notch (233) is opened at one end of the guide block (232) facing the center of the side plate (229).

9. An aluminum-aluminum composite internally threaded pipe straightening device as defined in claim 8, wherein, The side plate (229) is also symmetrically equipped with a clamping plate (240), and an adjusting plate (234) is slidably provided between the clamping plates (240). A notch (235) is opened at the center of one end of the adjusting plate (234) near the through hole (230). A strip hole (236) is also symmetrically provided on the adjusting plate (234). A guide post (237) is fixedly installed on the guide block (232), and the guide post (237) is slidably provided in the strip hole (236).

10. An aluminum-aluminum composite internally threaded pipe straightening device according to claim 9, characterized in that The adjustment plate (234) has a slot (238) at the center of one end away from the notch (235). A locking block (239) is locked in the slot (238). An adjustment cylinder (241) is installed at the end of the side plate (229) away from the passage (230). The output shaft end of the adjustment cylinder (241) is fixedly connected to the locking block (239). By starting the adjustment cylinder (241), the locking block (239) can be moved, and then the locking block (239) will move and adjust the adjustment plate (234) through the slot (238).

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