A metal forging flaw detection device

Abstract

The application relates to the technical field of magnetic particle flaw detection, and discloses a metal forging piece flaw detection device, which comprises a flaw detection assembly and an adjusting assembly. The flaw detection assembly comprises a workbench, a transverse moving piece and a longitudinal moving piece arranged on the workbench, a horizontal rod arranged on the transverse moving piece, a vertical rod arranged on the longitudinal moving piece, and an ultrasonic detector penetrated by the horizontal rod and the vertical rod. The adjusting assembly is arranged below the workbench and comprises a telescopic air cylinder, a mounting frame fixedly connected with the telescopic end of the telescopic air cylinder, a rotating piece arranged on the mounting frame, and a turnover piece arranged on the rotating piece. The metal forging piece flaw detection device is driven by horizontal and longitudinal connecting rod motors to realize two-dimensional movement, the movement is uniform, the device is more controllable than manual powder scattering, resource waste is not easily caused, the metal forging piece can be freely rotated, the surface to be detected is ensured to be as horizontal as possible, after flaw detection is completed, the metal forging piece is turned over to detect the other surface, and the scattered magnetic powder is automatically poured off, and manual cleaning is not needed.

Description

Technical Field

[0001] This invention relates to the technical field of magnetic particle testing, and more particularly to a flaw detection device for metal forgings. Background Technology

[0002] Magnetic particle testing is a commonly used non-destructive testing method widely applied to defect inspection of metallic materials, especially in welding, casting, and machining. This method involves applying a magnetic field to the surface of the workpiece and then sprinkling magnetic powder onto it to detect magnetic leakage caused by material defects (such as cracks and porosity). However, manual sprinkling of magnetic powder often results in uneven distribution on the workpiece surface. This unevenness not only affects the accuracy of the testing results but can also lead to resource waste. Furthermore, after testing, residual magnetic powder requires manual cleaning. This cleaning process is tedious and time-consuming, increasing labor intensity and potentially affecting the workpiece itself. Summary of the Invention

[0003] The purpose of this section is to provide an overview of some aspects of the invention. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problems existing in the above-mentioned flaw detection devices for metal forgings, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a metal forging flaw detection device, which is driven by a horizontal and vertical linkage motor to perform two-dimensional movement. The movement is uniform and more controllable than manual powder application, and it is less likely to cause resource waste. The metal forging can be freely rotated to ensure that the surface to be tested is as horizontal as possible. After flaw detection is completed, it is flipped to the other side for detection and the magnetic powder is automatically poured off at the same time, without the need for manual cleaning.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a flaw detection device for metal forgings, comprising a flaw detection component, including a worktable, a transverse moving component and a longitudinal moving component disposed on the worktable, a crossbar disposed on the transverse moving component, a longitudinal rod disposed on the longitudinal moving component, and a magnetic powder nozzle penetrated by the crossbar and the longitudinal rod; and an adjustment component disposed below the worktable, including a telescopic cylinder, a mounting frame fixedly connected to the telescopic end of the telescopic cylinder, a rotating component disposed on the mounting frame, and a flipping component disposed on the rotating component.

[0007] As a preferred embodiment of the metal forging flaw detection device of the present invention, the worktable has a rectangular through hole in the center; the transverse moving component includes two parallel transverse screws, a drive wheel disposed on one of the transverse screws, and a first motor disposed on the worktable.

[0008] As a preferred embodiment of the metal forging flaw detection device of the present invention, the worktable is provided with four sets of oppositely arranged fixed frames, the fixed frames are respectively arranged on the four sides of the through hole, the transverse screws are respectively rotatably arranged on two sets of fixed frames, the two transverse screws rotate synchronously through a belt, the drive wheel is fixedly connected to the rotating shaft of one of the transverse screws, and the output shaft of the first motor is driven to the drive wheel through a belt.

[0009] As a preferred embodiment of the metal forging flaw detection device of the present invention, the longitudinal moving component includes two longitudinal screws arranged perpendicular to the transverse screws and a second motor disposed on the worktable.

[0010] In a preferred embodiment of the metal forging flaw detection device of the present invention, the longitudinal screws are respectively rotatably mounted on two sets of fixed frames, and the two longitudinal screws rotate synchronously through a belt. The output shaft of the second motor is driven to one of the longitudinal screws through a belt. The transverse screws are not at the same height as the longitudinal screws.

[0011] In a preferred embodiment of the metal forging flaw detection device of the present invention, the crossbar is parallel to the longitudinal screw, and both ends of the crossbar are respectively penetrated by the transverse screw, and both ends of the crossbar are respectively threaded to the transverse screw; the longitudinal rod is parallel to the transverse screw, and both ends of the longitudinal rod are respectively penetrated by the longitudinal screw, and both ends of the longitudinal rod are respectively threaded to the longitudinal screw; the magnetic powder nozzle is slidably connected to the crossbar and the longitudinal rod respectively.

[0012] As a preferred embodiment of the metal forging flaw detection device of the present invention, the rotating component includes a third motor and a rotating block fixedly connected to the output shaft of the third motor. The third motor is fixedly mounted on the mounting frame. A groove is provided in the center of the rotating block, and an arc-shaped slide rail is also provided on the rotating block.

[0013] In a preferred embodiment of the metal forging flaw detection device of the present invention, the flipping component is disposed on the rotating block, and the flipping component includes a fourth motor, a gear fixed to the output shaft of the fourth motor, and a C-type gear meshing with the gear.

[0014] In a preferred embodiment of the metal forging flaw detection device of the present invention, the fourth motor is fixedly mounted on the rotating block, the gear is disposed in the groove, the output shaft of the fourth motor extends into the groove, and the C-shaped gear is slidably connected to the arc-shaped slide rail.

[0015] As a preferred embodiment of the metal forging flaw detection device of the present invention, a vacuum suction cup is also fixed on the inner wall of the C-shaped gear.

[0016] The beneficial effects of this invention are:

[0017] The metal forging flaw detection device of this invention is driven by a horizontal and vertical linkage motor to perform two-dimensional movement. The movement is uniform and more controllable than manual powder application, which is less likely to cause resource waste. The metal forging can be rotated freely to ensure that the surface to be tested is as horizontal as possible. After flaw detection is completed, it is flipped to the other side for detection and the magnetic powder is automatically poured off, eliminating the need for manual cleaning. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0019] Figure 1 This is a schematic diagram of the overall structure of the metal forging flaw detection device of the present invention.

[0020] Figure 2 This is a schematic diagram of the flaw detection component structure of the metal forging flaw detection device of the present invention.

[0021] Figure 3 This is a side view of the flaw detection component structure of the metal forging flaw detection device of the present invention.

[0022] Figure 4 This is a schematic diagram of the transverse moving part of the metal forging flaw detection device of the present invention.

[0023] Figure 5 This is a schematic diagram of the longitudinal moving part of the metal forging flaw detection device of the present invention.

[0024] Figure 6 This is a schematic diagram of the bottom structure of the workbench of the metal forging flaw detection device of the present invention.

[0025] Figure 7 This is a schematic diagram of the adjustment component structure of the metal forging flaw detection device of the present invention.

[0026] Figure 8 This is a schematic diagram of the rotating component structure of the metal forging flaw detection device of the present invention.

[0027] Figure 9 This is a schematic diagram of the rotating block and the fourth motor structure of the metal forging flaw detection device of the present invention.

[0028] Figure 10 This is a schematic diagram of the rotating block structure of the metal forging flaw detection device of the present invention.

[0029] Figure 11 This is a schematic diagram of the gear and C-type gear structure of the metal forging flaw detection device of the present invention.

[0030] Explanation of reference numerals in the attached drawings: 100, flaw detection assembly; 101, worktable; 102, transverse moving part; 102a, transverse screw; 102b, drive wheel; 102c, first motor; 103, longitudinal moving part; 103a, longitudinal screw; 103b, second motor; 104, crossbar; 105, longitudinal bar; 106, magnetic powder nozzle; 200, adjustment assembly; 201, telescopic cylinder; 202, mounting bracket; 203, rotating part; 203a, third motor; 203b, rotating block; 203c, groove; 203d, arc-shaped slide rail; 204, flipping part; 204a, fourth motor; 204b, gear; 204c, C-type gear; 205, vacuum suction cup. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0034] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0035] Example 1

[0036] Reference Figure 1 This invention provides a flaw detection device for metal forgings, comprising a flaw detection component 100 and an adjustment component 200. The flaw detection component 100 includes a worktable 101, a transverse moving member 102 and a longitudinal moving member 103 disposed on the worktable 101, a crossbar 104 disposed on the transverse moving member 102, a longitudinal rod 105 disposed on the longitudinal moving member 103, and a magnetic powder nozzle 106 penetrated by the crossbar 104 and the longitudinal rod 105. The adjustment component 200 is disposed below the worktable 101 and includes a telescopic cylinder 201, a mounting frame 202 fixedly connected to the telescopic end of the telescopic cylinder 201, a rotating member 203 disposed on the mounting frame 202, and a flipping member 204 disposed on the rotating member 203.

[0037] The workbench 101 carries the flaw detection component 100 and the adjustment component 200. The transverse moving component 102 drives the crossbar 104 to move laterally, and the longitudinal moving component 103 drives the longitudinal bar 105 to move longitudinally. The intersection of the crossbar 104 and the longitudinal bar 105 can move arbitrarily in a two-dimensional plane. The magnetic powder nozzle 106 is set at the intersection of the crossbar 104 and the longitudinal bar 105. The magnetic powder nozzle 106 can move uniformly in all directions in a plane through the movement of the crossbar 104 and the longitudinal bar 105.

[0038] Reference Figure 2 , Figure 4To enable fully automatic control of the movement of the magnetic powder nozzle 106, a rectangular through hole 101a is provided in the center of the worktable 101. The transverse moving component 102 includes two parallel transverse screws 102a, a drive wheel 102b mounted on one of the transverse screws 102a, and a first motor 102c mounted on the worktable 101. Four sets of opposing fixed brackets 101b are provided on the worktable 101, respectively located on the four sides of the through hole 101a. The transverse screws 102a are rotatably mounted on two sets of fixed brackets 101b, and the two transverse screws 102a rotate synchronously via belts. The drive wheel 102b is fixedly connected to the rotating shaft of one of the transverse screws 102a, and the output shaft of the first motor 102c is driven to the drive wheel 102b via a belt. The longitudinal moving component 103 includes two longitudinal screws 103a perpendicular to the transverse screws 102a and a second motor 103b mounted on the worktable 101. The longitudinal screws 103a are rotatably mounted on two sets of fixed brackets 101b, and the two longitudinal screws 103a rotate synchronously via a belt. The output shaft of the second motor 103b is driven to one of the longitudinal screws 103a via a belt. The transverse screw 102a is not at the same height as the longitudinal screws 103a. The crossbar 104 is parallel to the longitudinal screws 103a, and both ends of the crossbar 104 are penetrated by the transverse screws 102a. Both ends of the crossbar 104 are threaded to the transverse screws 102a. The longitudinal rod 105 is parallel to the transverse screws 102a, and both ends of the longitudinal rod 105 are penetrated by the longitudinal screws 103a. Both ends of the longitudinal rod 105 are threaded to the longitudinal screws 103a. The magnetic powder nozzle 106 is slidably connected to the crossbar 104 and the longitudinal rod 105.

[0039] To move bar 104, refer to... Figures 2-4 Simply start the first motor 102c. The output shaft of the first motor 102c rotates, which is transmitted via belt to the drive wheel 102b on the same belt. The drive wheel 102b starts to rotate. Since the drive wheel 102b is fixed on the rotating shaft of a transverse screw 102a, its rotation drives the coaxial transverse screw 102a to rotate. It should be noted that the transverse screw 102a is rotatably mounted on the fixed frame 101b, and its own orientation does not change when it rotates. A belt drive is also connected to the transverse screw 102a, so one transverse screw 102a can drive the other transverse screw 102a to rotate synchronously. When the two transverse screws 102a rotate synchronously, the two ends of the crossbar 104 will move horizontally due to the threaded connection. The crossbar 104 passes through and slides through the magnetic powder nozzle 106, so the crossbar 104 can control the horizontal movement of the magnetic powder nozzle 106 in the extension direction of the transverse screw 102a. The direction of horizontal movement can be controlled by the forward and reverse rotation of the first motor 102c. To move the longitudinal rod 105, refer to... Figures 2-5Simply start the second motor 103b, and the output shaft of the second motor 103b will rotate, which will be transmitted to the longitudinal screw 103a via a belt. The longitudinal screw 103a will then begin to rotate, and there is also a belt drive between the longitudinal screws 103a. Thus, one longitudinal screw 103a can drive the other longitudinal screw 103a to rotate synchronously. When the two longitudinal screws 103a rotate synchronously, the two ends of the longitudinal rod 105 will move horizontally due to the threaded connection. The longitudinal rod 105 passes through the magnetic powder nozzle 106 and is slidably connected to it. Thus, the longitudinal rod 105 can control the horizontal movement of the magnetic powder nozzle 106 in the extension direction of the longitudinal screw 103a. The direction of horizontal movement can be controlled by the forward and reverse rotation of the second motor 103b. Since the transverse screw 102a and the longitudinal screw 103a are not at the same height, the transverse rod 104 and the longitudinal rod 105 will pass through the magnetic powder nozzle 106 at different heights and slide to connect with the magnetic powder nozzle 106. The magnetic powder nozzle 106 is fixed by a cross-shaped penetration. The movement of the magnetic powder nozzle 106 driven by the transverse rod 104 and the longitudinal rod 105 is more stable. The movement of the transverse rod 104 and the longitudinal rod 105 is driven by a thread, resulting in less vibration during movement. The fixing of the transverse rod 104 and the longitudinal rod 105 ensures that the magnetic powder nozzle 106 always maintains the same powder spraying angle. The magnetic powder input tube of the magnetic powder nozzle 106 is connected from the top. With the above scheme, the magnetic powder nozzle 106 can evenly spray magnetic powder onto the surface of the metal forging below without causing magnetic powder accumulation or waste.

[0040] Reference Figures 7-11 To control the measuring surface of the metal forging, the rotating component 203 includes a third motor 203a and a rotating block 203b fixedly connected to the output shaft of the third motor 203a. The third motor 203a is fixedly mounted on the mounting bracket 202. A groove 203c is formed in the center of the rotating block 203b, and an arc-shaped slide rail 203d is also provided on the rotating block 203b. The flipping component 204 is disposed on the rotating block 203b and includes a fourth motor 204a, a gear 204b fixed to the output shaft of the fourth motor 204a, and a C-type gear 204c meshing with the gear 204b. The fourth motor 204a is fixedly mounted on the rotating block 203b, the gear 204b is disposed in the groove 203c, the output shaft of the fourth motor 204a extends into the groove 203c, and the C-type gear 204c is slidably connected to the arc-shaped slide rail 203d. A vacuum suction cup 205 is also fixed on the inner wall of the C-type gear 204c.

[0041] refer to Figures 6 to 11The metal forging is fixed by a vacuum chuck 205, with the flatter side facing upwards, i.e., the C-gear 204c should surround it. When the flaw detection scan begins, the third motor 203a is started. The output shaft of the third motor 203a drives the rotating block 203b to rotate. The C-gear 204c is engaged with the gear 204b and remains stationary on the rotating block 203b. The third motor 203a can rotate the rotating block 203b until the surface of the metal forging to be tested faces the magnetic powder nozzle 106. Then, the fourth motor 204a is started. The output shaft of the fourth motor 204a drives the gear 204b to rotate within the groove 203c. Since the C-gear 204c meshes with the gear 204b, the C-gear 204c will rotate within the arc-shaped slide rail 203d, causing the metal forging connected to the C-gear 204c to rotate. Further fine-tuning of the upper surface of the metal forging is then performed so that its four sides align with the rectangular through hole 101. Alignment facilitates the positioning and movement of the magnetic powder nozzle 106. During flaw detection, the metal forging is first magnetized. The magnetization methods for metal forgings are not detailed here; commonly used methods such as current method, permanent magnet method, and electromagnetic method are all acceptable. Then, magnetic powder is evenly sprinkled onto the upper surface through the magnetic powder nozzle 106. The distribution of magnetic powder on the material surface is observed, with particular attention paid to areas where magnetic powder accumulates, and records are made. After the upper surface flaw detection is completed, the third motor 203a is restarted to flip the upper surface of the metal forging to the lower surface. As a result, the magnetic powder that was originally on the upper surface will fall off. Considering the strong adhesion of magnetic powder, after the metal forging is flipped and most of the magnetic powder is poured off, a blower or other dust removal device can be placed at the bottom of the device facing upwards to deeply clean the flipped-down flaw detection surface. The original lower surface is flipped to the upper surface. After adjustment by the C-type gear 204c and the rotating block 203b, a new round of flaw detection is performed. The subsequent cleaning is carried out in the same way.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A flaw detection device for metal forgings, characterized in that: include: The flaw detection assembly (100) includes a worktable (101), a transverse moving part (102) and a longitudinal moving part (103) disposed on the worktable (101), a crossbar (104) disposed on the transverse moving part (102), a longitudinal bar (105) disposed on the longitudinal moving part (103), and a magnetic powder nozzle (106) penetrated by the crossbar (104) and the longitudinal bar (105). Adjustment component (200) is located below workbench (101) and includes telescopic cylinder (201), mounting bracket (202) fixedly connected to the telescopic end of telescopic cylinder (201), rotating component (203) on mounting bracket (202), and flipping component (204) on rotating component (203). The worktable (101) has a rectangular through hole (101a) in the center; the transverse moving part (102) includes two parallel transverse screws (102a), a drive wheel (102b) on one of the transverse screws (102a), and a first motor (102c) on the worktable (101). The workbench (101) is provided with four sets of opposing fixed frames (101b), which are respectively set on the four sides of the through hole (101a). The transverse screws (102a) are respectively rotatably set on two sets of fixed frames (101b). The two transverse screws (102a) rotate synchronously through a belt. The drive wheel (102b) is fixedly connected to the rotating shaft of one of the transverse screws (102a). The output shaft of the first motor (102c) is driven to the drive wheel (102b) through a belt. The longitudinal moving part (103) includes two longitudinal screws (103a) arranged perpendicular to the transverse screw (102a) and a second motor (103b) arranged on the worktable (101). The longitudinal screws (103a) are rotatably mounted on two sets of fixed brackets (101b), and the two longitudinal screws (103a) rotate synchronously through a belt. The output shaft of the second motor (103b) is driven to one of the longitudinal screws (103a) through a belt. The transverse screw (102a) is not at the same height as the longitudinal screws (103a). The crossbar (104) is parallel to the longitudinal screw (103a), and both ends of the crossbar (104) are respectively penetrated by the transverse screw (102a). Both ends of the crossbar (104) are respectively threaded to the transverse screw (102a). The longitudinal rod (105) is parallel to the transverse screw (102a), and both ends of the longitudinal rod (105) are respectively penetrated by the longitudinal screw (103a). Both ends of the longitudinal rod (105) are respectively threaded to the longitudinal screw (103a). The magnetic powder nozzle (106) is slidably connected to the crossbar (104) and the longitudinal rod (105). The rotating component (203) includes a third motor (203a) and a rotating block (203b) fixedly connected to the output shaft of the third motor (203a). The third motor (203a) is fixedly mounted on the mounting bracket (202). A groove (203c) is provided in the center of the rotating block (203b). An arc-shaped slide rail (203d) is also provided on the rotating block (203b). The flipping component (204) is disposed on the rotating block (203b). The flipping component (204) includes a fourth motor (204a), a gear (204b) fixed to the output shaft of the fourth motor (204a), and a C-type gear (204c) meshing with the gear (204b).

2. The metal forging flaw detection device as described in claim 1, characterized in that: The fourth motor (204a) is fixedly mounted on the rotating block (203b), the gear (204b) is located in the groove (203c), the output shaft of the fourth motor (204a) extends into the groove (203c), and the C-type gear (204c) is slidably connected to the arc-shaped slide rail (203d).

3. The metal forging flaw detection device as described in claim 2, characterized in that: A vacuum suction cup (205) is also fixed on the inner wall of the C-type gear (204c).

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