Part hole position detection device and detection method

Abstract

The present invention relates to the field of data detection, specifically to a part hole position detection device and detection method, which includes a workbench, a part fixture is detachably arranged on the workbench, a part is placed on the part fixture, and the part has two holes to be detected whose extended axis lines intersect; it also includes: a position adjustment mechanism, which is movably arranged on the workbench; a rotating shaft, which is horizontally and rotatably arranged on the position adjustment mechanism, and its lateral position and vertical position can be adjusted; the extended axis line of the rotating shaft and the extended axis lines of the two holes to be detected intersect at one point, and the axis line of the rotating shaft is perpendicular to the plane where the axes of the two holes to be detected are located; and a detection mechanism, which is arranged on the rotating shaft, and detects the position and aperture of the two holes to be detected by rotating the rotating shaft. In the present invention, the position of the rotating shaft is adjustable, which can adapt to the detection of the holes to be detected with two intersecting axes on different parts, that is, it can complete the detection of the aperture and position of the inclined hole, and it can adapt to different parts, and has good versatility.

Description

Technical Field

[0001] The present invention relates to the technical field of data detection, and in particular to a part hole position detection device and a detection method. Background Art

[0002] Part hole detection is a key quality control process, which is mainly used to ensure that the holes on the parts meet the design requirements so that they can fit smoothly in the subsequent assembly process.

[0003] The Chinese patent with announcement number CN105444642B discloses a dual-reference hole position detection device for parts, in which a linear rail is installed on the main base, a slide groove is arranged under the auxiliary base, and the linear rail is slidably matched; a reference frame 1 and a detection seat 1 are installed on the main base, a window is arranged on the auxiliary base, and the reference frame 1 and the detection seat 1 are located in the window; a reference frame 2 and a detection seat 2 are installed on the auxiliary base; a positioning pin 1 is installed on the reference frame, and a positioning pin 2 is installed on the reference frame 2; a hole 1 is arranged on the detection seat 1, and the pin rod of the detection pin 1 is in clearance with the hole 1; a hole 2 is arranged on the detection seat 2, and the pin rod of the detection pin 2 is in clearance with the hole 2. The invention can realize the detection of dual-reference multi-hole position on a set of detection devices, which can save detection time and improve work efficiency.

[0004] However, the above-mentioned disclosed solutions have the following shortcomings: the axes of the multiple holes detected are parallel to each other, and cannot be applied to the parameter detection of two inclined holes whose axes are not parallel in the same plane. In addition, in the prior art, for the measurement of inclined holes, a specific tool is usually designed, which has poor versatility and cannot be applied to the hole position measurement of other parts. Summary of the invention

[0005] The purpose of the present invention is to propose a part hole position detection device and detection method to address the problems that the background technology is not suitable for inclined hole parameter detection and the tooling versatility is poor.

[0006] On the one hand, the present invention provides a part hole position detection device, comprising a workbench, a part fixture detachably arranged on the workbench, a part is placed on the part fixture, and the part has two holes to be detected with intersecting axis extension lines; and further comprising:

[0007] A position adjustment mechanism, movably arranged on a workbench;

[0008] The rotating shaft is horizontally and rotatably arranged on the position adjustment mechanism, and its horizontal position and vertical position can be adjusted; the extended line of the axis of the rotating shaft and the extended lines of the axes of the two holes to be detected intersect at one point, and the axis of the rotating shaft is perpendicular to the plane where the axes of the two holes to be detected are located;

[0009] And a detection mechanism is arranged on the rotating shaft, and detects the position and aperture of two holes to be detected through the rotation of the rotating shaft.

[0010] Preferably, the position adjustment mechanism includes a horizontal slide plate arranged on the workbench for horizontal sliding, a support plate arranged vertically on the horizontal slide plate, and a vertical slide plate arranged on the support plate for vertical sliding; the rotating shaft is rotatably connected to the vertical slide plate; and the horizontal slide plate and the vertical slide plate are both provided with limit components for limiting their movement.

[0011] Preferably, the detection mechanism includes a detection rotating frame arranged on the rotating shaft, a guide rod slidably arranged on the detection end of the detection rotating frame, a baffle arranged on the top of the guide rod, and a go / no-go gauge arranged at the bottom of the guide rod.

[0012] Preferably, a cylinder is provided at the bottom of the detection rotating frame, the cylinder is sleeved on the rotating shaft, and opposite through holes are provided on the rotating shaft and the cylinder along the diameter direction. The cylinder locking bolt is passed through the through hole and locked with a nut to complete the installation of the cylinder.

[0013] Preferably, a plurality of threaded holes are horizontally arranged on the vertical slide plate, and limit rods are inserted into the threaded holes. Two limit rods are arranged, and a rotation space for the detection rotating frame is provided between the two limit rods. When the detection rotating frame rotates to contact with the limit rods, the hole to be detected is detected.

[0014] Preferably, the end of the limiting rod is a threaded rod, the threaded rod cooperates with the threaded hole, and the other position of the limiting rod is a smooth rod, which contacts the detection rotating frame.

[0015] Preferably, an auxiliary adjustment mechanism is also included, and the auxiliary adjustment mechanism is used to determine the position of the rotating shaft.

[0016] On the other hand, the present invention provides a detection method of a part hole detection device, comprising the following steps:

[0017] S1. Fix the part fixture on the workbench, and then fix the standard part through the part fixture. It is necessary to ensure that the plane where the axes of the two holes to be tested are located is perpendicular to the rotating shaft;

[0018] S2. Adjust the position of the rotating shaft so that the extended line of the rotating shaft axis and the extended lines of the axes of the two holes to be tested on the standard part intersect at one point, thus completing the determination of the rotating shaft position;

[0019] S3, remove the standard parts and replace them with the parts to be tested;

[0020] S4. One of the holes to be detected is detected by a detection mechanism. After the detection, the shaft is rotated by a specific angle, and then the other hole to be detected is detected by the detection mechanism, thereby completing the detection of the apertures and positions of the two holes to be detected.

[0021] Compared with the prior art, the present invention has the following beneficial technical effects: the position of the rotating shaft is adjustable, which can adapt to the detection of holes to be detected where two axes intersect on different parts, that is, it can complete the detection of the aperture and position of the inclined hole, and can adapt to different parts with good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 and Figure 2 Each of them is a stereogram of an embodiment of the present invention;

[0023] Figure 3 for Figure 1 Schematic diagram of some structures;

[0024] Figure 4 for Figure 3 A is an enlarged schematic diagram;

[0025] Figure 5 It is a schematic diagram of the detection state of the hole to be detected;

[0026] Figure 6 Schematic diagram of the method for adjusting the position of the rotating shaft.

[0027] 1. The workbench; 2. The mounting hole; 3. The part fixture; 4. The fixture fixing bolt; 5. The part; 6. The guide rail; 7. The horizontal slide; 8. The horizontal locking plate; 9. The horizontal slide locking bolt; 10. The support plate; 11. The slide groove; 12. The vertical slide; 13. The vertical locking plate; 14. The vertical slide locking bolt; 15. The bearing seat; 16. The rotating shaft; 17. The cylinder; 18. The cylinder locking bolt; 19. The detection rotating frame; 20. The guide rod; 21. The baffle; 22. The go / no-go gauge; 23. The threaded hole; 24. The limit rod; 25. The positioning pin; 26. The hole to be detected; 27. The positioning rod a; 28. The strip groove a; 29. ​​The positioning rod b; 30. The long plate; 31. The avoidance groove; 32. The strip groove b; 33. The auxiliary adjustment rod; 34. The standard part; 35. The auxiliary centering hole. DETAILED DESCRIPTION

[0028] Embodiment 1, as Figure 1-Figure 4As shown, a part hole position detection device proposed by the present invention includes a workbench 1, a part fixture 3 is detachably arranged on the workbench 1, a part 5 is placed on the part fixture 3, and the part 5 has two holes 26 to be detected with intersecting axis extension lines. In an optional embodiment, a plurality of mounting holes 2 are arranged on the workbench 1, and a plurality of through holes are also arranged on the part fixture 3. The part fixture 3 is fixed by a plurality of fixture fixing bolts 4. Different corresponding part fixtures 3 are selected according to different parts 5. The mounting holes 2 at different positions are used to fix and install different part fixtures 3. In this embodiment, a special-shaped bracket is used as the part to be detected for structural description. There are two positioning plates of different heights on the part fixture 3. A positioning pin 25 is arranged on the higher positioning plate. A positioning hole for the positioning pin 25 to pass through is arranged on the part 5. The two positioning plates have surface positioning on both ends of the part 5. Combined with the positioning pin 25, only the upward degree of freedom of the part 5 is retained. When detecting, it is only necessary to place the part 5 to the bottom; it also includes:

[0029] A position adjustment mechanism, movably arranged on the workbench 1;

[0030] The rotating shaft 16 is horizontally and rotatably arranged on the position adjustment mechanism, and its lateral position and vertical position can be adjusted. The lateral position here refers to the direction of the longer side of the table surface of the workbench 1, that is, the long side direction of the workbench 1, and the direction where the width of the workbench 1 is located is the longitudinal direction; the axis extension line of the rotating shaft 16 and the axis extension lines of the two holes to be detected 26 intersect at one point, and the axis of the rotating shaft 16 is perpendicular to the plane where the axes of the two holes to be detected 26 are located;

[0031] And the detection mechanism is arranged on the rotating shaft 16, and detects the position and aperture of the two holes 26 to be detected by the rotation of the rotating shaft 16.

[0032] Supplementary introduction to the inclined hole parts: In some bearing or bushing designs, two non-parallel and non-vertical holes may be designed to provide greater flexibility during assembly or adjustment; angular contact bearings are designed with inclined holes that can withstand axial and radial loads, and their internal channels form a certain angle with the bearing axis; in the structure of universal joints, there may be holes with two axes intersecting at a certain angle to allow the transmission of torque with changing direction angles; in some mechanical structures, in order to achieve fine-tuning functions, there will be bolt holes designed as inclined holes, and the position of a certain component can be changed by rotating the bolts; in some designs of multi-couplings, the holes at both ends of the coupling may be designed to be non-parallel to accommodate the connection of different angles between axes; in the bracket of a machine or equipment, two inclined holes may be designed to facilitate the adjustment and fixing of the angle of a certain component; in special gearbox designs, in order to optimize the meshing performance of gears or adapt to special transmission ratios, gears with inclined holes may be designed; the above designs can provide more structural stability, adaptability and convenience during installation, and the above-mentioned inclined hole parts are listed to prove the practical significance of this embodiment.

[0033] Embodiment 2, as Figure 2-Figure 4 As shown, a part hole position detection device proposed by the present invention, compared with the first embodiment, this embodiment introduces the structure of the position adjustment mechanism in detail.

[0034] The position adjustment mechanism includes a transverse slide 7 which is arranged on the workbench 1 for sliding in the transverse direction, a support plate 10 which is arranged vertically on the transverse slide 7, and a vertical slide 12 which is arranged on the support plate 10 for sliding in the vertical direction; a rotating shaft 16 is rotatably connected with the vertical slide 12; both the transverse slide 7 and the vertical slide 12 are provided with a limit assembly for limiting their movement; specifically, a guide rail 6 is arranged in the transverse direction on the workbench 1, a sliding groove which cooperates with the guide rail 6 is arranged on the transverse slide 7, a sliding groove 11 is arranged vertically on the support plate 10, a protrusion is arranged on the vertical slide 12 which cooperates with the sliding groove 11 for sliding, a transverse locking plate 8 is arranged on the transverse slide 7, and the transverse locking plate 8 and the side of the workbench 1 are A threaded hole is set, and a plurality of threaded holes are set on the workbench 1 to adapt to the hole position detection of different parts 5. The horizontal locking plate 8 is fixed by the horizontal slide locking bolt 9, thereby completing the limitation of the horizontal slide 7; a vertical locking plate 13 is set on the vertical slide 12, and threaded holes are set on the sides of the vertical locking plate 13 and the support plate 10. A plurality of threaded holes are set side by side on the support plate 10 to adapt to the hole position detection of different parts 5. The vertical locking plate 13 is fixed by the vertical slide locking bolt 14, thereby completing the limitation of the vertical slide 12; in an optional embodiment, a bearing seat 15 is set on the vertical slide 12, and the rotating shaft 16 is rotatably set on the bearing seat 15.

[0035] Embodiment three, as Figure 3-Figure 5As shown, a part hole position detection device proposed by the present invention, compared with the second embodiment, this embodiment introduces the structure of the detection mechanism in detail.

[0036] The detection mechanism includes a detection rotating frame 19 arranged on the rotating shaft 16, a guide rod 20 slidably arranged on the detection end of the detection rotating frame 19, a baffle 21 arranged on the top of the guide rod 20, and a go / no-go gauge 22 arranged at the bottom of the guide rod 20; specifically, the detection rotating frame 19 includes a vertical section and a horizontal section, the vertical section is connected to the rotating shaft 16, the horizontal section is located above the part 5, and the horizontal section is provided with a guide hole that cooperates with the guide rod 20.

[0037] Furthermore, a cylinder 17 is arranged at the bottom of the detection rotating frame 19, and the cylinder 17 is sleeved on the rotating shaft 16. Relative through holes are arranged on the rotating shaft 16 and the cylinder 17 along the diameter direction. The cylinder locking bolt 18 is passed through the through hole and locked with a nut to complete the installation of the cylinder 17. In an optional embodiment, the part of the cylinder locking bolt 18 passing through the through hole is a bare rod.

[0038] Furthermore, a plurality of threaded holes 23 are horizontally arranged on the vertical slide plate 12, and a limiting rod 24 is inserted into the threaded hole 23. Two limiting rods 24 are arranged, and a rotation space for the detection rotating frame 19 is provided between the two limiting rods 24. When the detection rotating frame 19 is rotated to contact with the limiting rod 24, the hole 26 to be detected is detected. In the present embodiment, the angle between the axes of the two holes 26 to be detected is sixty degrees, one of the holes 26 to be detected is vertical, and the other is inclined. When the detection rotating frame 19 is rotated to contact with the upper limiting rod 24, the vertical hole 26 to be detected is detected, and when the detection rotating frame 19 is rotated to contact with the lower limiting rod 24, the inclined hole 26 to be detected is detected.

[0039] Furthermore, the end of the limiting rod 24 is a threaded rod, which cooperates with the threaded hole 23 , and the other position of the limiting rod 24 is a smooth rod, which contacts the detection rotating frame 19 , specifically, the smooth rod contacts the vertical section of the detection rotating frame 19 .

[0040] Embodiment 4, as Figure 6 As shown, a part hole position detection device proposed by the present invention further adds an auxiliary adjustment mechanism compared to the third embodiment.

[0041] The auxiliary adjustment mechanism is used to determine the position of the rotating shaft 16. Specifically, the auxiliary adjustment mechanism includes two auxiliary parts. One auxiliary part is a positioning rod a27, which cooperates to pass through a hole 26 to be detected on a standard part 34. A strip groove a28 is arranged on the positioning rod a27. The other auxiliary part is a positioning rod b29, which cooperates to pass through another hole 26 to be detected on the standard part 34. A long plate 30 is arranged at the end of the positioning rod b29, and a avoidance groove 31 for the positioning rod a27 to pass through is arranged on the long plate 30. Strip grooves b32 are arranged on the front and rear end surfaces of the long plate 30. The width of the strip groove b32 is equal to the width of the strip groove a28. An auxiliary adjustment rod 33 is cooperated to pass through the strip groove a28 and the strip groove b32. An auxiliary centering hole 35 is arranged at the end of the rotating shaft 16. The auxiliary adjustment rod 33 cooperates to be inserted into the auxiliary centering hole 35 to complete the determination of the position of the rotating shaft 16. The use of the above-mentioned auxiliary adjustment mechanism requires space under the part 5 for operation. When the space under the part 5 is solid or insufficient, first move the transverse slide 7 laterally, and try to detect the hole 26 to be inspected of the standard part 34 by the go / no-go gauge 22 on the detection rotating frame 19 to determine the position of the transverse slide 7. Then fix the transverse slide 7, rotate the detection rotating frame 19, and adjust the position of the vertical slide 12 at the same time until the go / no-go gauge 22 can successfully detect the other hole 26 to be inspected. At this time, fix the vertical slide 12, and the position of the rotating shaft 16 can also be determined, but more operating processes are required.

[0042] Embodiment 5, a method for detecting the hole position of a part proposed by the present invention, using the device for detecting the hole position of a part of embodiment 4, specifically comprises the following steps:

[0043] S1. Fix the part fixture 3 on the workbench 1, and then fix the standard part 34 through the part fixture 3. It is necessary to ensure that the plane where the axes of the two holes 26 to be tested are located is perpendicular to the rotating shaft 16. This can be achieved by adjusting the fixing angle of the part fixture 3.

[0044] S2, adjusting the position of the rotating shaft 16 so that the extended axis of the rotating shaft 16 and the extended axis of the two holes to be tested 26 on the standard part 34 intersect at one point, and the position of the rotating shaft 16 is determined;

[0045] S3, remove the standard part 34 and replace it with the part 5 to be tested;

[0046] S4. One of the holes 26 to be detected is detected by the detection mechanism. After the detection, the rotating shaft 16 is rotated by a specific angle, and the other hole 26 to be detected is detected by the detection mechanism, thereby completing the detection of the apertures and positions of the two holes 26 to be detected.

[0047] In summary, when the present invention is used, the standard part fixture 3 is first fixed on the workbench 1, and then the part 5 is fixed by the part fixture 3. It is necessary to ensure that the plane where the axes of the two holes to be detected 26 are located is perpendicular to the rotating shaft 16, which can be achieved by adjusting the fixing angle of the part fixture 3, and then the position of the rotating shaft 16 is adjusted so that the extended line of the axis of the rotating shaft 16 and the extended lines of the axes of the two holes to be detected 26 on the standard part 34 intersect at one point. This can be adjusted by an auxiliary adjustment mechanism or by trial detection of the standard part 34. Next, the standard part 34 is fixed. Part 34 is removed, and replaced with the part 5 to be inspected, and the inspection rotating frame 19 is rotated to abut against a limit rod 24, and the guide rod 20 is moved up and down, so as to complete the inspection of a hole 26 to be inspected with the go / no-go gauge 22, and then the inspection rotating frame 19 is rotated to abut against another limit rod 24, and the guide rod 20 is moved up and down again, so as to complete the inspection of another inclined hole 26 to be inspected with the go / no-go gauge 22. The inspection content includes the hole position and location. After completing the inspection of the two holes 26 to be inspected, the part 5 is removed and replaced, and the hole inspection operation is performed again. The position of the rotating shaft 16 is adjustable, which can adapt to the inspection of the holes 26 to be inspected with two intersecting axes on different parts 5, can complete the inspection of the diameter and location of the inclined hole, and can adapt to different parts 5, with good versatility. It should be noted that for different parts 5, corresponding inspection rotating frames 19 need to be designed.

[0048] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A part hole position detection device, comprising a workbench (1), a part fixture (3) being detachably arranged on the workbench (1), a part (5) being placed on the part fixture (3), and the part (5) having two holes (26) to be detected whose extended axis lines intersect; characterized in that: Also includes: A position adjustment mechanism, movably arranged on the workbench (1); The rotating shaft (16) is horizontally and rotatably arranged on the position adjustment mechanism, and its horizontal position and vertical position can be adjusted; the extended line of the axis of the rotating shaft (16) and the extended lines of the axes of the two holes to be detected (26) intersect at one point, and the axis of the rotating shaft (16) is perpendicular to the plane where the axes of the two holes to be detected (26) are located; and a detection mechanism, which is arranged on the rotating shaft (16) and detects the position and aperture of the two holes (26) to be detected by rotating the rotating shaft (16); The position adjustment mechanism comprises a transverse slide plate (7) slidably arranged on a workbench (1), a support plate (10) vertically arranged on the transverse slide plate (7), and a vertical slide plate (12) slidably arranged on the support plate (10) in a vertical direction; a rotating shaft (16) is rotatably connected to the vertical slide plate (12); both the transverse slide plate (7) and the vertical slide plate (12) are provided with a limit assembly for limiting their movement; and the detection mechanism comprises a detection rotating frame (19) arranged on the rotating shaft (16), a guide rod (20) slidably arranged on a detection end of the detection rotating frame (19), a baffle plate (21) arranged on the top of the guide rod (20), and a go / no-go gauge (22) arranged on the bottom of the guide rod (20).

2. The part hole position detection device according to claim 1, characterized in that: A cylinder (17) is arranged at the bottom of the detection rotating frame (19), and the cylinder (17) is sleeved on the rotating shaft (16). The rotating shaft (16) and the cylinder (17) are provided with opposite through holes along the diameter direction, and the cylinder locking bolt (18) is passed through the through hole and locked with a nut to complete the installation of the cylinder (17).

3. The part hole position detection device according to claim 1, characterized in that: A plurality of threaded holes (23) are horizontally arranged on the vertical slide plate (12), and a limiting rod (24) is inserted into the threaded hole (23). Two limiting rods (24) are arranged, and a rotation space of the detection rotating frame (19) is provided between the two limiting rods (24). When the detection rotating frame (19) rotates to contact with the limiting rod (24), the hole (26) to be detected is detected.

4. The part hole position detection device according to claim 3, characterized in that: The end of the limit rod (24) is a threaded rod, which cooperates with the threaded hole (23); the other position of the limit rod (24) is a smooth rod, which contacts the detection rotating frame (19).

5. The part hole position detection device according to claim 1, characterized in that: It also includes an auxiliary adjustment mechanism, which is used to determine the position of the rotating shaft (16).

6. A method for detecting the hole position of a part, using the device for detecting the hole position of a part according to claim 1, characterized in that: The following steps are involved: S1. Fix the part fixture (3) on the workbench (1), and then fix the standard part (34) through the part fixture (3), and ensure that the plane where the axes of the two holes to be tested (26) are located is perpendicular to the rotating shaft (16); S2, adjusting the position of the rotating shaft (16) so that the extended axis of the rotating shaft (16) and the extended axis of the two holes to be tested (26) on the standard part (34) intersect at one point, thereby completing the position determination of the rotating shaft (16); S3, remove the standard part (34) and replace it with the part to be tested (5); S4, detecting one of the holes to be detected (26) by a detection mechanism. After the detection, the rotating shaft (16) is rotated by a specific angle, and then the other hole to be detected (26) is detected by the detection mechanism, thereby completing the detection of the apertures and positions of the two holes to be detected (26).

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