Inclined hole detection device for metal piece

Abstract

The utility model discloses an inclined hole detection device for a metal piece, and relates to the inclined hole detection field, the inclined hole detection device comprises an angle adjusting mechanism and a hole length detection mechanism, the angle adjusting mechanism comprises a pedestal, an X-axis deflection plate and a Y-axis deflection plate, the X-axis deflection plate is rotatably installed on the pedestal, the Y-axis deflection plate is rotatably installed on the X-axis deflection plate, and the X-axis deflection plate is rotatably installed on the Y-axis deflection plate. The rotation axis of the X-axis deflection plate is perpendicular to the rotation axis of the Y-axis deflection plate, a to-be-detected metal piece is assembled on the Y-axis deflection plate and used for deflecting the axis of an inclined hole of the metal piece to be in a vertical state, the hole length detection mechanism comprises a detection cross beam, a detection shaft and a distance sensor, the detection cross beam has the freedom degree of moving along the X axis, the Y axis and the Z axis in a space coordinate system, and the distance sensor is arranged on the detection shaft. The detection shaft is vertically installed on the detection cross beam, the distance sensor is installed at the bottom of the detection cross beam, the angle adjusting mechanism carries out corresponding posture adjustment on the metal piece according to the design size of the inclined hole, the inclined hole of the metal piece is made to be in a vertical state, follow-up detection is facilitated, and meanwhile the detection precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of oblique hole detection, specifically an oblique hole detection device for metal parts. Background Technology

[0002] In the manufacturing fields of aerospace, automotive parts, and precision engineering machinery, the machining of oblique holes in metal structural parts is a very common process. The accuracy of the hole length directly determines the assembly compatibility of the parts and the stability of the entire machine operation. Therefore, accurate inspection of oblique holes is a core aspect of quality control in metal parts production. Currently, the industry mainly uses two methods for inspecting oblique holes in metal parts: one is manual inspection, where operators use simple measuring tools such as calipers, plug gauges, and angle gauges to visually align and manually measure the length. This method is not only extremely inefficient and difficult to adapt to the inspection needs of mass production, but it is also affected by human operating experience and subjective judgment errors, making it difficult to guarantee the inspection accuracy. Especially for oblique holes with multi-dimensional angles, it is difficult for humans to accurately adjust the workpiece posture to match the inspection benchmark, which easily leads to deviations in hole length measurement. The second method uses distance sensors for inspection. Even when using sensors to directly measure the axial length of oblique holes, difficulties still exist. Overcoming the precision bottleneck: Currently, most methods attempt to align the sensor's detection path with the axis of the oblique hole by adjusting the sensor's own angle. However, due to the precision limitations of the sensor angle adjustment mechanism, most adjustment mechanisms can only achieve single-dimensional coarse adjustment or semi-automatic adjustment. They lack a real-time calibration feedback mechanism based on the actual axis of the oblique hole, and the sensor installation reference and the oblique hole positioning reference are prone to deviation. This results in the sensor's detection path still having a slight angular offset from the axis of the oblique hole after adjustment, which cannot meet the high precision requirements for the length of oblique holes in aerospace, high-end automotive parts and other fields. It may even lead to the risk of missing batches of non-conforming products or misjudging qualified products. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for detecting oblique holes in metal parts, thereby addressing the deficiencies of the prior art.

[0004] The purpose of this utility model is achieved through the following technical solution: a device for detecting oblique holes in metal parts, comprising an angle adjustment mechanism and a hole length detection mechanism. The angle adjustment mechanism includes a base, an X-axis deflection plate, and a Y-axis deflection plate. The X-axis deflection plate is rotatably mounted on the base, and the Y-axis deflection plate is rotatably mounted on the X-axis deflection plate. The rotation axis of the X-axis deflection plate is perpendicular to the rotation axis of the Y-axis deflection plate. The metal part to be detected is tooled on the Y-axis deflection plate to deflect the oblique hole axis of the metal part to a vertical state. The hole length detection mechanism includes a detection beam, a detection shaft, and a distance sensor. The detection beam has degrees of freedom to move along the X, Y, and Z axes in a spatial coordinate system. The detection shaft is vertically mounted on the detection beam, and the distance sensor is mounted on the bottom of the detection beam.

[0005] Furthermore, a lifting detection seat is provided on the detection beam, and a detection cavity is provided inside the lifting detection seat. A circular hole is opened at the bottom of the lifting detection seat, and the circular hole communicates with the detection cavity. The detection shaft is slidably adapted to the circular hole. A pressure sensor is installed on the top of the lifting detection seat. The pressure shaft of the pressure sensor passes through the detection cavity. A pressure plate is fixed on the top of the detection shaft. The pressure shaft of the pressure sensor presses the pressure plate against the inner bottom wall of the detection cavity.

[0006] Furthermore, a cylinder is vertically mounted on the detection beam, and the telescopic shaft of the cylinder is connected to the lifting detection seat.

[0007] Furthermore, two first bearing seats are fixedly spaced on the base, and a first steering shaft is provided between the two first bearing seats. The first steering shaft is rotatably connected to the first bearing seats. A first bushing is fixed to the bottom of the X-axis deflection plate. The first bushing is fixedly sleeved on the first steering shaft. A first motor is installed on one of the first bearing seats, and the output shaft of the first motor is drivenly connected to the first steering shaft.

[0008] Furthermore, two second bearing seats are fixed at intervals on the X-axis deflection plate, and a second steering shaft is provided between the two second bearing seats. The second steering shaft is rotatably connected to the second bearing seats. A second bushing is fixed to the bottom of the Y-axis deflection plate. The second bushing is fixedly sleeved on the second steering shaft. A second motor is installed on one of the second bearing seats. The output shaft of the second motor is connected to the second steering shaft. The second steering shaft is perpendicular to the first steering shaft in the horizontal plane.

[0009] Furthermore, the hole length detection mechanism also includes an X-axis sliding seat, a Y-axis sliding seat, a support column, and a fixed base. The X-axis sliding seat is slidably mounted on the fixed base, and the Y-axis sliding seat is slidably mounted on the X-axis sliding seat. The movement direction of the X-axis sliding seat is perpendicular to the movement direction of the Y-axis sliding seat. The support column is fixed on the Y-axis sliding seat, and the detection beam is slidably mounted on the support column. The detection beam has the freedom to move along the height direction of the support column.

[0010] Furthermore, a first linear drive module is installed on the fixed base, the X-axis sliding seat is installed on the slide of the first linear drive module, a second linear drive module is installed on the X-axis sliding seat, the Y-axis sliding seat is installed on the slide of the second linear drive module, a support cylinder is vertically installed on the Y-axis sliding seat, and the telescopic shaft of the support cylinder is connected to the detection crossbeam.

[0011] Furthermore, the Y-axis deflection plate is provided with a fixed fixture plate and a sliding fixture plate. The sliding fixture plate is slidably disposed on the Y-axis deflection plate, and the fixed fixture plate is mounted on the Y-axis deflection plate by screws. A positioning shaft is fixed to one end of the fixed fixture plate near the sliding fixture plate, and a sliding positioning shaft is fixed to one end of the sliding fixture plate near the fixed fixture plate. The sliding positioning shaft is disposed opposite to the positioning shaft.

[0012] Furthermore, a lead screw groove is provided on the Y-axis deflection plate, a lead screw is rotatably disposed in the lead screw groove, a lead screw slider is fitted on the lead screw, the lead screw slider is slidably adapted to the lead screw groove, the sliding fixture plate is installed on the lead screw slider by screws, and one end of the lead screw protrudes from the Y-axis deflection plate and is connected to a handwheel.

[0013] The beneficial effects of this utility model are:

[0014] The metal part to be inspected is mounted on a Y-axis deflection plate. The angle adjustment mechanism adjusts the posture of the metal part according to the design size of the inclined hole, making the inclined hole of the metal part vertical. This allows for position adjustment of the metal part using the design size of the inclined hole, avoiding the problem of increased error caused by directly adjusting the test angle of the distance sensor. After the inclined hole is vertical, the detection shaft is first applied to the reference surface of the inclined hole's design size. The detection reference is measured by the distance sensor. Then, the detection shaft is inserted into the inclined hole and contacts the bottom of the inclined hole. The distance to the reference surface is measured again by the distance sensor. The difference between the two measurements is the length of the inclined hole. Using the reference surface of the inclined hole's design size as the detection reference further improves the detection accuracy and effectively avoids the risk of missing defective products or misjudging qualified products. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a slanted hole detection device for metal parts according to the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the internal structure of the lifting detection seat in the inclined hole detection device for metal parts according to this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of a slanted hole detection device for metal parts according to the present invention. Figure 2 ;

[0018] Figure 4 This is a schematic diagram of the structure of a slanted hole detection device for metal parts according to the present invention. Figure 3 ;

[0019] In the diagram, 1-base, 2-X-axis deflection plate, 3-Y-axis deflection plate, 4-detection beam, 5-detection shaft, 6-distance sensor, 7-detection cavity, 8-circular hole, 9-pressure sensor, 10-pressure plate, 11-lifting detection seat, 12-first bearing seat, 13-first steering shaft, 14-first bushing, 15-second bearing seat, 16-second steering shaft, 17-second bushing, 18-first motor, 19-second motor, 20-cylinder, 21-X-axis sliding seat, 22-Y-axis sliding seat, 23-support column, 24-fixed base, 25-first linear drive module, 26-second linear drive module, 27-support cylinder, 28-fixed tooling plate, 29-sliding tooling plate, 30-positioning shaft, 31-sliding positioning shaft, 32-screw groove, 33-screw, 34-screw slider, 35-handwheel. Detailed Implementation

[0020] Example 1

[0021] like Figures 1 to 4 As shown, a device for detecting oblique holes in metal parts includes an angle adjustment mechanism and a hole length detection mechanism. The angle adjustment mechanism includes a base 1, an X-axis deflection plate 2, and a Y-axis deflection plate 3. The X-axis deflection plate 2 is rotatably mounted on the base 1, and the Y-axis deflection plate 3 is rotatably mounted on the X-axis deflection plate 2. The rotation axis of the X-axis deflection plate 2 is perpendicular to the rotation axis of the Y-axis deflection plate 3. The metal part to be detected is mounted on the Y-axis deflection plate 3 to deflect the oblique hole axis of the metal part to a vertical state. The hole length detection mechanism includes a detection beam 4, a detection shaft 5, and a distance sensor 6. The detection beam 4 has degrees of freedom to move along the X, Y, and Z axes in a spatial coordinate system. The detection shaft 5 is vertically mounted on the detection beam 4, and the distance sensor 6 is mounted on the bottom of the detection beam 4. The metal part to be detected is placed upright on the Y-axis deflection plate 3, and the oblique hole is machined according to the design dimensions, including the diameter of the oblique hole, the drilling depth, the X-axis tilt angle, and the Y-axis tilt angle. The tilt angle, etc., is adjusted according to the X-axis and Y-axis tilt angles of the inclined hole design. This ensures that the rotation angle of the X-axis deflection plate 2 equals the X-axis tilt angle, and the rotation angle of the Y-axis deflection plate 3 equals the Y-axis tilt angle, thus making the inclined hole vertical. This allows for position adjustment of the metal part using the designed dimensions of the inclined hole, avoiding the increased error caused by directly adjusting the test angle of the distance sensor. After the inclined hole is vertical, the detection shaft 5 is first applied to the reference surface of the inclined hole's designed dimensions, typically the machined end face of the inclined hole. The detection reference is measured by the distance sensor 6. Then, the detection shaft 5 is inserted into the inclined hole and contacts the bottom of the inclined hole. The distance to the reference surface is then measured by the distance sensor 6. The difference between the two measurements is the length of the inclined hole. Using the reference surface of the inclined hole's designed dimensions as the detection reference further improves the detection accuracy and effectively avoids the risk of missing defective products or misjudging qualified products.

[0022] Example 2

[0023] Based on Example 1, such as Figure 1 , Figure 2 and Figure 3 As shown, the Y-axis deflection plate 3 is provided with a fixed fixture plate 28 and a sliding fixture plate 29. The sliding fixture plate 29 is slidably disposed on the Y-axis deflection plate 3. The fixed fixture plate 28 is mounted on the Y-axis deflection plate 3 by screws. A positioning shaft 30 is fixed to one end of the fixed fixture plate 28 near the sliding fixture plate 29, and a sliding positioning shaft 31 is fixed to one end of the sliding fixture plate 29 near the fixed fixture plate 28. The sliding positioning shaft 31 is disposed opposite to the positioning shaft 30. A lead screw groove 32 is provided on the Y-axis deflection plate 3. A lead screw 33 is rotatably disposed in the lead screw groove 32. A lead screw slider 34 is fitted on the lead screw 33 and slides to fit the lead screw groove 32. The sliding fixture plate 29 is mounted on the lead screw slider 34 by screws. One end of the lead screw 33 extends out of the Y-axis. The deflection plate 3 is connected to a handwheel 35. During production, tooling holes are opened at both ends of the metal part to facilitate tooling inspection. The metal part is placed between the fixed tooling plate 28 and the sliding tooling plate 29, so that the positioning shaft 30 is inserted into one of the tooling holes of the metal part. Then, the handwheel 35 is rotated to rotate the lead screw 33, so that the lead screw slider 34 drives the sliding tooling plate 29 to move closer to the metal part, so that the sliding positioning shaft 31 is inserted into the other tooling hole of the metal part. After tightening, the tooling of the metal part is completed. Both the fixed tooling plate 28 and the sliding tooling plate 29 can be disassembled. For metal parts of different sizes and types, the corresponding fixed tooling plate 28 and sliding tooling plate 29 can be configured. For the inspection of different metal parts, the corresponding fixed tooling plate 28 and sliding tooling plate 29 can be installed.

[0024] Example 3

[0025] Based on Example 2, such as Figures 1 to 4As shown, two first bearing seats 12 are fixedly fixed at intervals on the base 1. A first steering shaft 13 is arranged between the two first bearing seats 12, and the first steering shaft 13 is rotatably connected to the first bearing seats 12. A first bushing 14 is fixedly fixed to the bottom of the X-axis deflection plate 2, and the first bushing 14 is fixedly sleeved on the first steering shaft 13. A first motor 18 is installed on one of the first bearing seats 12. The output shaft of the first motor 18 is connected to the first steering shaft 13. The first motor 18 drives the first steering shaft 13 to deflect, and the first steering shaft 13 drives the X-axis deflection plate 2 to deflect, thereby adjusting the position of the metal part in the X-axis direction. Two second bearing seats 15 are fixedly fixed at intervals on the X-axis deflection plate 2. A second steering shaft 16 is provided between the two second bearing seats 15. The second steering shaft 16 is rotatably connected to the second bearing seats 15. A second bushing 17 is fixed to the bottom of the Y-axis deflection plate 3. The second bushing 17 is fixedly sleeved on the second steering shaft 16. A second motor 19 is installed on one of the second bearing seats 15. The output shaft of the second motor 19 is connected to the second steering shaft 16. The second steering shaft 16 is perpendicular to the first steering shaft 13 on the horizontal plane. The second motor 19 drives the second steering shaft 16 to rotate. The second steering shaft 16 drives the Y-axis deflection plate 3 to deflect. By adjusting the position of the metal part in the Y-axis direction, and cooperating with the X-axis deflection plate 2, the inclined hole can be deflected to a vertical state.

[0026] Example 4

[0027] Based on Embodiment 3, the hole length detection mechanism further includes an X-axis sliding seat 21, a Y-axis sliding seat 22, a support column 23, and a fixed base 24. The X-axis sliding seat 21 is slidably mounted on the fixed base 24, and the Y-axis sliding seat 22 is slidably mounted on the X-axis sliding seat 21. The movement direction of the X-axis sliding seat 21 is perpendicular to the movement direction of the Y-axis sliding seat 22. The support column 23 is fixed on the Y-axis sliding seat 22. The detection beam 4 is slidably mounted on the support column 23 and has a degree of freedom to move along the height direction of the support column 23. A first linear drive module 25 is mounted on the fixed base 24, and the X-axis sliding seat 21 is mounted on the slide of the first linear drive module 25. A second linear drive module is mounted on the X-axis sliding seat 21. Group 26, the Y-axis sliding seat 22 is mounted on the slide of the second linear drive module 26, and a support cylinder 27 is vertically mounted on the Y-axis sliding seat 22. The telescopic shaft of the support cylinder 27 is connected to the detection crossbeam 4. The first linear drive module 25 drives the X-axis sliding seat 21 to move along the X-axis direction, thereby driving the detection crossbeam 4 to move along the X-axis direction. The second linear drive module 26 drives the Y-axis sliding seat 22 to move along the Y-axis direction, thereby driving the detection crossbeam 4 to move along the Y-axis direction. The support cylinder 27 drives the detection crossbeam 4 to move along the Z-axis direction, so that the detection crossbeam 4 has the three degrees of freedom of movement in the spatial coordinate system along the X, Y, and Z directions, thereby enabling the detection axis 5 and the distance sensor 6 to complete the detection operation.

[0028] Example 5

[0029] Based on Example 4, such as Figures 1 to 4 As shown, a lifting detection seat 11 is provided on the detection beam 4. The lifting detection seat 11 has a detection cavity 7 inside. A circular hole 8 is opened at the bottom of the lifting detection seat 11, connecting to the detection cavity 7. The detection shaft 5 is slidably fitted into the circular hole 8. A pressure sensor 9 is installed on the top of the lifting detection seat 11. The pressure shaft of the pressure sensor 9 passes through the detection cavity 7. A pressure plate 10 is fixed to the top of the detection shaft 5. The pressure shaft of the pressure sensor 9 presses the pressure plate 10 against the inner bottom wall of the detection cavity 7. A cylinder 20 is vertically installed on the detection beam 4. The telescopic shaft of the cylinder 20 is connected to the lifting detection seat 11. In the specific detection process, when the inclined hole of the metal part deflects to a vertical state, the detection beam 4 first drives the detection shaft 5 to act on the reference surface of the inclined hole. When the detection shaft 5 contacts the reference surface, the detection shaft 5 will act on the pressure sensor 9 through the pressure plate 10. The detection is judged based on the pressure feedback from the pressure sensor 9. Whether shaft 5 moves downward to the reference surface, then cylinder 20 drives the lifting detection seat 11 to move upward, so that the detection shaft 5 avoids the metal part, then the detection beam 4 moves horizontally, so that the pressure sensor 9 corresponds to the reference surface, and the distance between the reference surface and the pressure sensor 9 is detected by the pressure sensor 9. Contact detection beam 4 drives detection shaft 5 to move horizontally to directly above the inclined hole. Cylinder 20 first drives the lifting detection seat 11 to reset downward, so that the position of detection shaft 5 corresponds to the position of the reference surface. Then detection beam 4 drives detection shaft 5 to move downward until detection shaft 5 contacts the bottom of the inclined hole. Then cylinder 20 drives detection shaft 5 to move upward, so that detection shaft 5 is above the metal part. Detection beam 4 moves horizontally, so that distance sensor 6 corresponds to the reference surface for detection, and the distance between the reference surface and distance sensor 6 at this position is obtained. The difference between the two distances is the axial length of the inclined hole. It should be noted that since the distance sensor 6 and the detection axis 5 are staggered on the horizontal plane, when the detection axis 5 corresponds to the reference plane, the distance sensor 6 does not correspond to the reference plane. Therefore, after the detection axis 5 corresponds to the reference plane, the height position of the detection beam 4 is determined, and then the horizontal position of the distance sensor 6 is adjusted so that the distance sensor 6 detects the reference plane. The height of the detection beam 4 does not change during the two detections. The upward movement of the detection axis 5 is achieved by the cylinder 20, so that the distance sensor 6 can use the inclined hole reference plane as the detection reference for both detections, thereby greatly improving the detection accuracy.

Claims

1. A device for detecting oblique holes in metal parts, characterized in that, The application relates to a metal hole length detection device, which comprises an angle adjusting mechanism and a hole length detection mechanism, the angle adjusting mechanism comprises a base (1), an X-axis deflection plate (2) and a Y-axis deflection plate (3), the X-axis deflection plate (2) is rotatably arranged on the base (1), the Y-axis deflection plate (3) is rotatably arranged on the X-axis deflection plate (2), the rotation axis of the X-axis deflection plate (2) is perpendicular to the rotation axis of the Y-axis deflection plate (3), a metal part to be detected is arranged on the Y-axis deflection plate (3) and used for deflecting the inclined hole axis of the metal part into a vertical state, the hole length detection mechanism comprises a detection beam (4), a detection shaft (5) and a distance sensor (6), the detection beam (4) has the freedom of movement along the X, Y and Z axes in a space coordinate system, the detection shaft (5) is vertically arranged on the detection beam (4), and the distance sensor (6) is arranged at the bottom of the detection beam (4).

2. The apparatus for detecting an inclined hole of a metal piece according to claim 1, wherein A lifting detection seat (11) is arranged on the detection beam (4), the lifting detection seat (11) is internally provided with a detection cavity (7), a circular hole (8) is formed in the bottom of the lifting detection seat (11), the circular hole (8) is communicated with the detection cavity (7), the detection shaft (5) is slidably matched with the circular hole (8), a pressure sensor (9) is arranged at the top of the lifting detection seat (11), the pressure shaft of the pressure sensor (9) penetrates into the detection cavity (7), a pressure disc (10) is fixed to the top of the detection shaft (5), and the pressure shaft of the pressure sensor (9) presses the pressure disc (10) against the inner bottom wall of the detection cavity (7).

3. The apparatus for detecting an inclined hole of a metal piece according to claim 1, wherein A gas cylinder (20) is vertically arranged on the detection beam (4), and the telescopic shaft of the gas cylinder (20) is connected with the lifting detection seat (11).

4. The apparatus for detecting an inclined hole of a metal piece according to claim 1, wherein Two first bearing seats (12) are fixedly arranged on the base (1) at intervals, a first steering shaft (13) is arranged between the two first bearing seats (12), the first steering shaft (13) is rotatably connected with the first bearing seat (12), a first shaft sleeve (14) is fixedly arranged at the bottom of the X-axis deflection plate (2) and is sleeved on the first steering shaft (13), a first motor (18) is arranged on one of the first bearing seats (12), and the output shaft of the first motor (18) is drivingly connected with the first steering shaft (13).

5. A device for detecting angled holes in a metal piece according to claim 4, characterized in that, Two second bearing seats (15) are fixedly arranged on the X-axis deflection plate (2) at intervals, a second steering shaft (16) is arranged between the two second bearing seats (15), the second steering shaft (16) is rotatably connected with the second bearing seat (15), a second shaft sleeve (17) is fixedly arranged at the bottom of the Y-axis deflection plate (3) and is sleeved on the second steering shaft (16), a second motor (19) is arranged on one of the second bearing seats (15), the output shaft of the second motor (19) is drivingly connected with the second steering shaft (16), and the second steering shaft (16) is perpendicular to the first steering shaft (13) in a horizontal plane.

6. The apparatus for detecting an inclined hole of a metal piece according to claim 1, wherein The hole length detection mechanism further comprises an X-axis sliding seat (21), a Y-axis sliding seat (22), a supporting column (23) and a fixed base (24), the X-axis sliding seat (21) is slidingly installed on the fixed base (24), the Y-axis sliding seat (22) is slidingly installed on the X-axis sliding seat (21), the moving direction of the X-axis sliding seat (21) is perpendicular to the moving direction of the Y-axis sliding seat (22), the supporting column (23) is fixed on the Y-axis sliding seat (22), and the detection beam (4) is slidingly installed on the supporting column (23); the detection beam (4) has a degree of freedom in the height direction of the supporting column (23).

7. A device for detecting angled holes in a metal piece according to claim 6, characterized in that, The fixed base (24) is provided with a first linear drive module (25), the X-axis sliding seat (21) is installed on the sliding seat of the first linear drive module (25), the X-axis sliding seat (21) is provided with a second linear drive module (26), the Y-axis sliding seat (22) is installed on the sliding seat of the second linear drive module (26), the Y-axis sliding seat (22) is vertically provided with a supporting cylinder (27), and the telescopic shaft of the supporting cylinder (27) is connected with the detection beam (4).

8. The apparatus for detecting an inclined hole of a metal piece according to claim 1, wherein The Y-axis deflection plate (3) is provided with a fixed tool plate (28) and a sliding tool plate (29), the sliding tool plate (29) is slidingly arranged on the Y-axis deflection plate (3), the fixed tool plate (28) is installed on the Y-axis deflection plate (3) by screws, one end of the fixed tool plate (28) close to the sliding tool plate (29) is fixed with a positioning shaft (30), one end of the sliding tool plate (29) close to the fixed tool plate (28) is fixed with a sliding positioning shaft (31), and the sliding positioning shaft (31) is arranged opposite to the positioning shaft (30).

9. A device for detecting angled holes in a metal piece according to claim 8, characterized in that, The Y-axis deflection plate (3) is provided with a fixed tool plate (28) and a sliding tool plate (29), the sliding tool plate (29) is slidingly arranged on the Y-axis deflection plate (3), the fixed tool plate (28) is installed on the Y-axis deflection plate (3) by screws, one end of the fixed tool plate (28) close to the sliding tool plate (29) is fixed with a positioning shaft (30), one end of the sliding tool plate (29) close to the fixed tool plate (28) is fixed with a sliding positioning shaft (31), and the sliding positioning shaft (31) is arranged opposite to the positioning shaft (30). The Y-axis deflection plate (3) is provided with a fixed tool plate (28) and a sliding tool plate (29), the sliding tool plate (29) is slidingly arranged on the Y-axis deflection plate (3), the fixed tool plate (28) is installed on the Y-axis deflection plate (3) by screws, one end of the fixed tool plate (28) close to the sliding tool plate (29) is fixed with a positioning shaft (30), one end of the sliding tool plate (29) close to the fixed tool plate (28) is fixed with a sliding positioning shaft (31), and the sliding positioning shaft (31) is arranged opposite to the positioning shaft (30).

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