Nondestructive testing device for thick-wall precision forgings

Abstract

The invention relates to the technical field of thick-wall precision forging nondestructive testing, in particular to a thick-wall precision forging nondestructive testing device which comprises a vertical plate, a bottom plate and a servo motor, the outer wall of the vertical plate is fixedly connected with the bottom plate, the servo motor is installed at the left end of the vertical plate, the inner wall detection mechanism comprises an inner disc, the inner disc is arranged above the vertical plate, and the inner disc is fixedly connected with the bottom plate. A rotating rod is rotatably connected to the front end of the inner disc, a main gear is fixedly connected to the end, in the inner disc, of the rotating rod, a bevel gear is connected to the exterior of the main gear in a meshed mode through teeth, the bevel gear is fixedly connected to the outer wall of a threaded rod, and the threaded rod is rotatably arranged in the inner disc; and the surface of the threaded rod is in threaded connection with a sliding seat. According to the nondestructive testing device for the thick-wall precision forgings, the flaw detection process of the thick-wall precision forgings can be conveniently and rapidly carried out, the situation that the detection time process and the detection time are prone to occurring due to the fact that the thick-wall precision forgings are subjected to flaw detection manually is avoided, and the practicability and the detection efficiency of the device are improved.

Description

Technical Field

[0001] The invention relates to the technical field of nondestructive testing of thick-wall precision forgings, in particular to a nondestructive testing device for thick-wall precision forgings. Background Art

[0002] The inspection process and methods of thick-walled precision forgings mainly include appearance inspection, size inspection, material inspection and performance inspection. Appearance inspection mainly inspects the surface quality and appearance size of forgings, including whether surface defects, shape and size meet the requirements. Material inspection mainly inspects the chemical composition and mechanical properties of forgings, including yield strength, tensile strength, hardness, etc. It is usually carried out by spectral analysis, metallographic inspection and other methods. Performance inspection mainly tests the performance of forgings under actual working conditions, including corrosion resistance, wear resistance, high temperature resistance, etc. It is usually carried out by simulation experiments, mechanical experiments and other methods.

[0003] In the existing non-destructive testing of thick-walled precision forgings, manual testing is usually used to carry out flaw detection equipment to perform flaw detection on the inner and outer walls of the thick-walled precision forgings. The staff is required to perform all-round mobile flaw detection on the inner and outer arms of the thick-walled precision forgings, which leads to the problem of slow and low detection efficiency when performing non-destructive testing on thick-walled precision forgings. Therefore, it is urgent to design a non-destructive testing device for thick-walled precision forgings to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a non-destructive testing device for thick-walled precision forgings to solve the problem raised in the above background technology that in the existing non-destructive testing of thick-walled precision forgings, manual non-destructive testing of the inner and outer walls of the thick-walled precision forgings is usually carried out by hand, and the staff is required to perform all-round mobile non-destructive testing on the inner and outer arms of the thick-walled precision forgings, resulting in slow and low testing efficiency during non-destructive testing of the thick-walled precision forgings.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A nondestructive testing device for thick-walled precision forgings, comprising: a vertical plate, a bottom plate and a servo motor, wherein the outer wall of the vertical plate is fixedly connected to the bottom plate, the left end of the vertical plate is equipped with a servo motor, the inner wall detection mechanism comprises an inner plate, the inner plate is arranged above the vertical plate, the front end of the inner plate is rotatably connected to a rotating rod, one end of the rotating rod inside the inner plate is fixedly connected to a main gear, the outside of the main gear is connected to a helical gear through tooth meshing, the helical gear is fixedly connected to the outer wall of the threaded rod, the threaded rod is rotatably arranged inside the inner plate, the surface of the threaded rod is connected to a sliding seat through threads, the outer wall of the sliding seat is fixedly connected to a first connecting rod, the end of the first connecting rod away from the sliding seat is fixedly connected to a second connecting rod, the second connecting rod is slidably arranged inside the inner plate, the end of the second connecting rod away from the first connecting rod is fixedly understood to be a fixed plate, the outer wall of the fixed plate is fixedly connected to the first connecting plate, and rollers are rotatably connected between the two groups of the first connecting plate, the outer wall of the inner plate is equipped with an inner wall flaw detector, and the bottom plate is equipped with an outer wall flaw detector.

[0006] Preferably, the threaded rod is rotatably connected to the inside of the bearing seat, and the bearing seat is fixedly mounted on the inner wall of the inner disk.

[0007] Preferably, a rotating connecting block is fixedly connected to the outer wall of the rotating rod, and the rotating rod is rotatably arranged in a groove opened inside the inner disk through the rotating connecting block.

[0008] Preferably, the inner wall flaw detection detector is installed on the outer wall of the inner disk by means of mounting bolts.

[0009] Preferably, the outer wall flaw detection mechanism includes a rotating shaft, which is fixedly connected to the output shaft of the servo motor, and one end of the rotating shaft away from the servo motor is fixedly connected to a connecting disk, the outer wall of the connecting disk is fixedly connected to an electric telescopic rod, and the output end of the electric telescopic rod is fixedly connected to the outer wall of the inner disk.

[0010] Preferably, a telescopic column is fixedly connected to the outer wall of the connecting plate, and one end of the telescopic column away from the connecting plate is fixedly connected to the outer wall of the inner plate.

[0011] Preferably, a third connecting rod is fixedly connected to the outer wall of the electric telescopic rod, a fourth connecting rod is fixedly connected to the outer wall of the third connecting rod, and an outer wall flaw detector is installed at one end of the fourth connecting rod away from the third connecting rod.

[0012] Preferably, the fourth connecting rod is connected to the outer wall flaw detection detector by installing bolts.

[0013] Preferably, the outer wall of the connecting plate is fixedly connected with a rotating rod, the rotating rod is slidably arranged inside the vertical plate, the outer wall of the rotating rod is fixedly connected with a limiting block, the limiting block is rotatably arranged inside an annular groove, and the annular groove is opened inside the vertical plate.

[0014] Preferably, the mounting mechanism includes a mounting plate, which is fixedly connected to the outer wall of the vertical plate, and the mounting plate is installed at the bottom end of the servo motor. The bottom end of the servo motor is fixedly connected to a second connecting plate, and a mounting groove is opened inside the second connecting plate. The mounting groove is opened inside the mounting plate, and a fastening bolt is installed inside the mounting groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects: When using the thick-walled precision forging non-destructive testing device, first rotate the rotating rod to drive the main gear to rotate. Under the action of the meshing of the main gear and the helical gear surface teeth, the helical gear is driven to rotate synchronously, and then the threaded rod is driven to rotate synchronously. Under the action of the thread, the sliding seat is driven to move synchronously. At this time, the four sets of sliding seats can be driven to slide synchronously, and then the first connecting rod is driven to slide synchronously. Then the second connecting rod follows the first connecting rod to move synchronously, and finally the fixed plate set on the outside of the inner disk and the roller set on the fixed plate are driven to move synchronously. The adjustment here is all adjusted in the direction close to the inner disk to make the distance between the roller and the inner disk close. Then the thick-walled precision forging is sleeved on the outside of the inner disk so that its inner wall is outside the inner wall flaw detector. Then the rotating rod is reversed. Under the meshing of the main gear and the helical gear teeth, the threaded rod is driven to rotate again. Under the action of the thread, the sliding seat is driven to move in the opposite direction. Subsequently, the first connecting rod, the second connecting rod and the fixed plate all move in opposite directions, and finally drive the roller rotatably arranged on the first connecting plate to move in the direction close to the thick-walled precision forging until the roller contacts the inner wall of the thick-walled precision forging. At this time, the roller and the thick-walled precision forging can be abutted, and the position of the thick-walled precision forging can be initially limited. Then the thick-walled precision forging is rotated, and the rollers rotate synchronously, so that the thick-walled precision forging will not be separated from the rollers. At this time, while the thick-walled precision forging is rotating, the inner wall flaw detection detector can perform flaw detection on the inner wall of the thick-walled precision forging, and the flaw detection on the inner wall of the thick-walled precision forging can be completed. Through this design, the non-destructive testing device for thick-walled precision forgings can conveniently carry out the flaw detection process of thick-walled precision forgings, avoid the detection time process and detection time easily incurred by manual flaw detection of thick-walled precision forgings, and improve the practicability and detection efficiency of the device.

[0016] When using the nondestructive testing device for thick-walled precision forgings, start the servo motor to drive the rotating shaft to rotate, and then drive the connecting disk to rotate synchronously, and then the inner disk can be driven to rotate synchronously through the connecting action of the electric telescopic rod. Supported by the abutment between the roller and the thick-walled precision forgings, the thick-walled precision forgings and the rollers will not be separated, and the thick-walled precision forgings will rotate slowly and synchronously with the inner disk. At this time, the outer wall of the thick-walled precision forgings will pass through the outer wall flaw detector while rotating, and the outer wall flaw detector can be used to perform flaw detection on the outer wall of the thick-walled precision forgings, making the flaw detection of the thick-walled precision forgings more comprehensive. Through this design, the nondestructive testing device for thick-walled precision forgings can detect the inner wall of the thick-walled precision forgings as well as the outer wall, which is convenient to use and improves the practicability and detection efficiency of the device.

[0017] When using the thick-walled precision forgings nondestructive testing device to perform outer wall flaw detection on the thick-walled precision forgings, a servo motor is used to drive the entirety of the forgings to rotate. However, the servo motor will vibrate when in use. Here, the servo motor is fastened and connected using the second connecting plate and the mounting plate provided on the outer wall of the vertical plate. This can make the servo motor more convenient to install on the one hand, and can also keep it stable during operation on the other hand. This design allows the thick-walled precision forgings nondestructive testing device to conveniently install and fasten the servo motor used for outer wall detection, making it more convenient to use and improving the practicability and stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic back view of the three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the overall structure of the inner wall detection mechanism of the present invention; Figure 4 It is a schematic cross-sectional view of the overall structure of the inner wall detection mechanism of the present invention; Figure 5 It is a schematic diagram of the overall structure of the outer wall flaw detection mechanism of the present invention; Figure 6 It is a front cross-sectional schematic diagram of the structure of the present invention; Figure 7 It is a side cross-sectional schematic diagram of a local structure of the present invention; Figure 8 It is a schematic diagram of the overall structure of the installation mechanism of the present invention.

[0019] In the figure: 111, vertical plate; 112, bottom plate; 113, servo motor; 2, inner wall detection mechanism; 211, inner plate; 212, rotating rod; 213, main gear; 214, bevel gear; 215, threaded rod; 216, sliding seat; 217, first connecting rod; 218, second connecting rod; 219, fixed plate; 220, first connecting plate; 221, roller; 222, inner wall flaw detector; 223, outer Wall flaw detection detector; 224, bearing seat; 3, outer wall flaw detection mechanism; 311, rotating shaft; 312, connecting plate; 313, electric telescopic rod; 314, telescopic column; 315, third connecting rod; 316, fourth connecting rod; 317, rotating rod; 318, limit block; 319, annular groove; 4, mounting mechanism; 411, mounting plate; 412, second connecting plate; 413, mounting groove; 414, fastening bolt. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-8 , an embodiment provided by the present invention: A nondestructive testing device for thick-walled precision forgings comprises: a vertical plate 111, a bottom plate 112 and a servo motor 113, wherein the bottom plate 112 is fixedly connected to the outer wall of the vertical plate 111, the servo motor 113 is installed at the left end of the vertical plate 111, and the inner wall detection mechanism 2 comprises an inner disk 211, the inner disk 211 is arranged above the vertical plate 111, the front end of the inner disk 211 is rotatably connected to a rotating rod 212, one end of the rotating rod 212 inside the inner disk 211 is fixedly connected to a main gear 213, the outside of the main gear 213 is connected to a bevel gear 214 through tooth meshing, the bevel gear 214 is fixedly connected to the outer wall of a threaded rod 215, the threaded rod 215 is rotatably arranged inside the inner disk 211, the surface of the threaded rod 215 is connected to a sliding seat 216 through threads, and the outer wall of the sliding seat 216 is fixedly connected to the inner disk 211. A first connecting rod 217 is connected, and one end of the first connecting rod 217 away from the sliding seat 216 is fixedly connected to the second connecting rod 218, and the second connecting rod 218 is slidably arranged inside the inner disk 211, and one end of the second connecting rod 218 away from the first connecting rod 217 is fixedly understood with a fixing plate 219, and the outer wall of the fixing plate 219 is fixedly connected to the first connecting plate 220, and a roller 221 is rotatably connected between the two groups of the first connecting plates 220, and an inner wall flaw detector 222 is installed on the outer wall of the inner disk 211, and an outer wall flaw detector 223 is installed on the bottom plate 112. Through this design, when the thick-wall precision forging non-destructive testing device is used, the rotating rod 212 is first rotated to drive the main gear 213 to rotate, and the teeth on the surface of the main gear 213 and the bevel gear 214 are meshed. Under the action of the coupling, the bevel gear 214 is driven to rotate synchronously, and then the threaded rod 215 is driven to rotate synchronously. Under the action of the thread, the sliding seat 216 is driven to move synchronously. At this time, the four groups of sliding seats 216 can be driven to slide synchronously, and then the first connecting rod 217 is driven to slide synchronously, and then the second connecting rod 218 follows the first connecting rod 217 to move synchronously, and finally the fixed plate 219 set on the outside of the inner disk 211 and the roller 221 set on the fixed plate 219 are driven to move synchronously. The adjustment here is all adjusted in the direction of approaching the inner disk 211, so that the distance between the roller 221 and the inner disk 211 is close, and then the thick-walled precision forging is sleeved on the outside of the inner disk 211 so that its inner wall is outside the inner wall flaw detector 222, and then the rotating rod 212 is reversed to rotate in the main Under the meshing action of the teeth of the gear 213 and the bevel gear 214, the threaded rod 215 is driven to rotate again, and under the action of the thread, the sliding seat 216 is driven to move in the opposite direction. Subsequently, the first connecting rod 217, the second connecting rod 218 and the fixed plate 219 all move in the opposite direction, and finally the roller 221 rotatably arranged on the first connecting plate 220 can be driven to move in the direction close to the thick-walled precision forging until the roller 221 contacts the inner wall of the thick-walled precision forging. At this time, the roller 221 and the thick-walled precision forging can be abutted to preliminarily limit the position of the thick-walled precision forging, and then the thick-walled precision forging is rotated, and the roller 221 rotates synchronously, so that the thick-walled precision forging will not be separated from the roller 221. At this time, while the thick-walled precision forging is rotating,The inner wall flaw detector 222 can perform flaw detection on the inner wall of thick-walled precision forgings, and can complete the flaw detection on the inner wall of thick-walled precision forgings.

[0022] Furthermore, the threaded rod 215 is rotatably connected inside the bearing seat 224, and the bearing seat 224 is fixedly installed on the inner wall of the inner disk 211. Through this design, the threaded rod 215 is rotatably connected inside the bearing seat 224, and the bearing seat 224 is used to limit the rotation, so that the threaded rod 215 is more stable when rotating.

[0023] Furthermore, a rotating connecting block is fixedly connected to the outer wall of the rotating rod 212, and the rotating rod 212 is rotatably set in a groove opened inside the inner disk 211 through the rotating connecting block. Through this design, when the rotating rod 212 rotates inside the inner disk 211, the rotating connecting block fixedly connected to the outer wall of the rotating rod 212 can be used to limit the rotation, making it more stable when rotating inside the inner disk 211.

[0024] Furthermore, the inner wall flaw detector 222 is installed on the outer wall of the inner disk 211 by means of mounting bolts. Through this design, the inner wall flaw detector 222 is installed on the outer wall of the inner disk 211 by means of mounting bolts. When the inner wall flaw detector 222 is damaged, the mounting bolts can be conveniently disassembled and the inner wall flaw detector 222 can be replaced, thereby facilitating flaw detection.

[0025] Furthermore, the outer wall flaw detection mechanism 3 includes a rotating shaft 311, which is fixedly connected to the output shaft of the servo motor 113, and the end of the rotating shaft 311 away from the servo motor 113 is fixedly connected to a connecting disk 312, and the outer wall of the connecting disk 312 is fixedly connected to an electric telescopic rod 313, and the output end of the electric telescopic rod 313 is fixedly connected to the outer wall of the inner disk 211. Through this design, when the thick-wall precision forging non-destructive testing device is used, the servo motor 113 is started to drive the rotating shaft 311 to rotate, thereby driving the connecting disk 312 to rotate synchronously. Rotate, and then through the connecting action of the electric telescopic rod 313, the inner disk 211 can be driven to rotate synchronously, and under the support of the abutment between the roller 221 and the thick-walled precision forging, the thick-walled precision forging and the roller 221 will not be separated, and the thick-walled precision forging will rotate slowly and synchronously with the inner disk 211. At this time, the outer wall of the thick-walled precision forging will pass through the outer wall flaw detector 223 while rotating, and the outer wall flaw detector 223 can be used to perform flaw detection on the outer wall of the thick-walled precision forging, so that the flaw detection of the thick-walled precision forging is more comprehensive.

[0026] Furthermore, a telescopic column 314 is fixedly connected to the outer wall of the connecting disk 312, and one end of the telescopic column 314 away from the connecting disk 312 is fixedly connected to the outer wall of the inner disk 211. Through this design, under the connecting action of the electric telescopic rod 313, the inner disk 211 can be driven to telescope, so that the inner disk 211 can change the position relative to the connecting disk 312, making it convenient for thick-walled precision forgings to be installed on the outside of the inner disk 211 to abut against the roller 221.

[0027] Furthermore, the outer wall of the electric telescopic rod 313 is fixedly connected to the third connecting rod 315, the outer wall of the third connecting rod 315 is fixedly connected to the fourth connecting rod 316, and the end of the fourth connecting rod 316 away from the third connecting rod 315 is installed with an outer wall flaw detection detector 223. Through this design, when the electric telescopic rod 313 drives the inner disk 211 to adjust, the telescopic column 314 performs synchronous telescopic adjustment, which can make the movement and adjustment of the inner disk 211 more stable.

[0028] Furthermore, the fourth connecting rod 316 is connected to the outer wall flaw detector 223 by installing bolts. Through this design, the fourth connecting rod 316 is connected to the outer wall flaw detector 223 by installing bolts, so that the outer wall flaw detector 223 can be easily disassembled and damaged, making it more convenient to use.

[0029] Furthermore, a rotating rod 317 is fixedly connected to the outer wall of the connecting disk 312, and the rotating rod 317 is slidably set inside the vertical plate 111. A limiting block 318 is fixedly connected to the outer wall of the rotating rod 317, and the limiting block 318 is rotatably set inside an annular groove 319. The annular groove 319 is opened inside the vertical plate 111. Through this design, when the connecting disk 312 rotates, the rotating rod 317 rotates inside the vertical plate 111, and the limiting block 318 rotates synchronously inside the annular groove 319, making its rotation more stable.

[0030] Furthermore, the mounting mechanism 4 includes a mounting plate 411, which is fixedly connected to the outer wall of the vertical plate 111, and the mounting plate 411 is installed at the bottom of the servo motor 113. The bottom of the servo motor 113 is fixedly connected to a second connecting plate 412, and a mounting groove 413 is opened inside the second connecting plate 412, and the mounting groove 413 is opened inside the mounting plate 411, and a fastening bolt 414 is installed inside the mounting groove 413. Through this design, when using the thick-walled precision forging non-destructive testing device, when performing outer wall flaw detection on the thick-walled precision forging, the servo motor 113 will be used to drive the whole to rotate, but the servo motor 113 will vibrate when used. Here, the servo motor 113 is fastened and connected using the second connecting plate 412 and the mounting plate 411 set on the outer wall of the vertical plate 111. On the one hand, the servo motor 113 can be installed more conveniently, and on the other hand, it can also be kept stable during operation.

[0031] Working principle: When using the thick-walled precision forging non-destructive testing device, first rotate the rotating rod 212 to drive the main gear 213 to rotate. Under the action of the meshing of the teeth on the surface of the main gear 213 and the bevel gear 214, the bevel gear 214 is driven to rotate synchronously, and then the threaded rod 215 is driven to rotate synchronously. Under the action of the thread, the sliding seat 216 is driven to move synchronously. At this time, the four groups of sliding seats 216 can be driven to slide synchronously, and then the first connecting rod 217 is driven to slide synchronously. Then the second connecting rod 218 follows the first connecting rod 217 to move synchronously, and finally the fixed plate 219 set on the outside of the inner disk 211 and the roller 221 set on the fixed plate 219 are driven to move synchronously. The adjustment here is all adjusted in the direction of approaching the inner disk 211, so that the distance between the roller 221 and the inner disk 211 is close, and then the thick-walled precision forging is sleeved on the outside of the inner disk 211 so that its inner wall is outside the inner wall flaw detector 222, and then the rotation is reversed. The movable rod 212, under the meshing action of the main gear 213 and the bevel gear 214, drives the threaded rod 215 to rotate again, and under the action of the thread, drives the sliding seat 216 to move in the opposite direction. Subsequently, the first connecting rod 217, the second connecting rod 218 and the fixed plate 219 all move in the opposite direction, and finally drive the roller 221 rotatably arranged on the first connecting plate 220 to move in the direction close to the thick-walled precision forging until the roller 221 contacts the inner wall of the thick-walled precision forging. At this time, the roller 221 and the thick-walled precision forging can be abutted, and the position of the thick-walled precision forging can be initially limited. Then, the thick-walled precision forging is rotated, and the roller 221 rotates synchronously, so that the thick-walled precision forging will not be separated from the roller 221. At this time, while the thick-walled precision forging is rotating, the inner wall flaw detector 222 can perform flaw detection on the inner wall of the thick-walled precision forging, and the flaw detection of the inner wall of the thick-walled precision forging can be completed.

[0032] When using the thick-walled precision forging nondestructive testing device, start the servo motor 113 to drive the rotating shaft 311 to rotate, and then drive the connecting disk 312 to rotate synchronously, and then the inner disk 211 can be driven to rotate synchronously through the connecting action of the electric telescopic rod 313. Under the support of the abutment between the roller 221 and the thick-walled precision forging, the thick-walled precision forging and the roller 221 will not be separated, and the thick-walled precision forging will rotate slowly and synchronously with the inner disk 211. At this time, the outer wall of the thick-walled precision forging will pass through the outer wall flaw detector 223 while rotating. The outer wall flaw detector 223 can be used to perform flaw detection on the outer wall of the thick-walled precision forging, so that the flaw detection of the thick-walled precision forging is more comprehensive.

[0033] When using the nondestructive testing device for thick-walled precision forgings and performing outer wall flaw detection on thick-walled precision forgings, the servo motor 113 is used to drive the entire forging to rotate. However, the servo motor 113 will generate vibration when in use. Here, the servo motor 113 is fastened and connected using the second connecting plate 412 and the mounting plate 411 provided on the outer wall of the vertical plate 111. On the one hand, this can make the installation of the servo motor 113 more convenient, and on the other hand, it can also keep it stable during operation. The operation is now completed.

[0034] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A nondestructive testing device for thick-walled precision forgings, comprising: A vertical plate (111), a bottom plate (112) and a servo motor (113), wherein the bottom plate (112) is fixedly connected to the outer wall of the vertical plate (111), and the servo motor (113) is installed at the left end of the vertical plate (111), characterized in that an inner wall detection mechanism (2) is arranged above the bottom plate (112), an outer wall flaw detection mechanism (3) is arranged above the bottom plate (112), and a mounting mechanism (4) is arranged outside the vertical plate (111), and the inner wall detection mechanism (2) comprises an inner disk (211), the inner disk (211) is arranged above the vertical plate (111), a rotating rod (212) is rotatably connected to the front end of the inner disk (211), and a main gear (213) is fixedly connected to one end of the rotating rod (212) inside the inner disk (211), and a bevel gear (214) is connected to the outside of the main gear (213) through tooth meshing, and the bevel gear (214) is fixedly connected to the threaded rod ( The outer wall of the inner disk (215) is provided with a threaded rod (215), the threaded rod (215) is rotatably arranged inside the inner disk (211), the surface of the threaded rod (215) is connected to a sliding seat (216) by threads, the outer wall of the sliding seat (216) is fixedly connected to a first connecting rod (217), one end of the first connecting rod (217) away from the sliding seat (216) is fixedly connected to a second connecting rod (218), the second connecting rod (218) is slidably arranged inside the inner disk (211), one end of the second connecting rod (218) away from the first connecting rod (217) is fixedly understood to be a fixed plate (219), the outer wall of the fixed plate (219) is fixedly connected to a first connecting plate (220), two groups of the first connecting plates (220) are rotatably connected to a roller (221), the outer wall of the inner disk (211) is installed with an inner wall flaw detector (222), and the bottom plate (112) is installed with an outer wall flaw detector (223).

2. A nondestructive testing device for thick-walled precision forgings according to claim 1, characterized in that: The threaded rod (215) is rotatably connected to the inside of the bearing seat (224), and the bearing seat (224) is fixedly mounted on the inner wall of the inner disk (211).

3. A nondestructive testing device for thick-walled precision forgings according to claim 1, characterized in that: A rotating connection block is fixedly connected to the outer wall of the rotating rod (212), and the rotating rod (212) is rotatably arranged in a groove opened inside the inner plate (211) via the rotating connection block.

4. A nondestructive testing device for thick-walled precision forgings according to claim 1, characterized in that: The inner wall flaw detector (222) is mounted on the outer wall of the inner plate (211) by means of mounting bolts.

5. The nondestructive testing device for thick-walled precision forgings according to claim 1, characterized in that: The outer wall flaw detection mechanism (3) comprises a rotating shaft (311), the rotating shaft (311) being fixedly connected to the output shaft of the servo motor (113), one end of the rotating shaft (311) away from the servo motor (113) being fixedly connected to a connecting disk (312), an outer wall of the connecting disk (312) being fixedly connected to an electric telescopic rod (313), and an output end of the electric telescopic rod (313) being fixedly connected to the outer wall of the inner disk (211).

6. A nondestructive testing device for thick-walled precision forgings according to claim 5, characterized in that: The outer wall of the connection disk (312) is fixedly connected to a telescopic column (314), and one end of the telescopic column (314) away from the connection disk (312) is fixedly connected to the outer wall of the inner disk (211).

7. The nondestructive testing device for thick-walled precision forgings according to claim 5, characterized in that: A third connecting rod (315) is fixedly connected to the outer wall of the electric telescopic rod (313), a fourth connecting rod (316) is fixedly connected to the outer wall of the third connecting rod (315), and an outer wall flaw detector (223) is installed at one end of the fourth connecting rod (316) away from the third connecting rod (315).

8. A nondestructive testing device for thick-walled precision forgings according to claim 7, characterized in that: The fourth connecting rod (316) is connected to the outer wall flaw detector (223) via mounting bolts.

9. The thick-wall precision forging nondestructive testing device according to claim 5, characterized in that: The outer wall of the connecting plate (312) is fixedly connected to a rotating rod (317), the rotating rod (317) is slidably arranged inside the vertical plate (111), the outer wall of the rotating rod (317) is fixedly connected to a limiting block (318), the limiting block (318) is rotatably arranged inside an annular groove (319), and the annular groove (319) is opened inside the vertical plate (111).

10. The thick-wall precision forging nondestructive testing device according to claim 1, characterized in that: The mounting mechanism (4) comprises a mounting plate (411), wherein the mounting plate (411) is fixedly connected to the outer wall of the vertical plate (111), and the mounting plate (411) is mounted on the bottom end of the servo motor (113). The bottom end of the servo motor (113) is fixedly connected to a second connecting plate (412), and a mounting groove (413) is provided inside the second connecting plate (412). The mounting groove (413) is provided inside the mounting plate (411), and a fastening bolt (414) is installed inside the mounting groove (413).

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