Part surface size detection equipment and detection method thereof

Abstract

The invention relates to the technical field of automatic part detection, in particular to part surface size detection equipment and a detection method thereof, and aims to solve the problem that parts in the detection equipment are easy to collide when the parts are manually taken and placed. The side wall of the detection table is detachably provided with automatic lubricating equipment, one side of the upper surface of the detection table is fixedly connected with a part positioning assembly, the detection table is provided with a first limiting rod, the surface of the first limiting rod is movably sleeved with a first sliding block, the first sliding block is provided with a first hydraulic telescopic rod, and the top end of the first sliding block is fixedly connected with a supporting frame. The top end of the supporting frame is fixedly connected with a transverse moving module. The automatic part taking and placing device has the effect of automatically taking and placing parts.

Description

Technical Field

[0001] The present application relates to the technical field of automatic part detection, and in particular to a part surface dimension detection device and a detection method thereof. Background Art

[0002] With the development of industry, the machining accuracy in the field of mechanical processing is getting higher and higher, and the requirements for the surface accuracy of parts are also getting higher and higher, and it is becoming more and more important to detect the surface accuracy of parts more efficiently and accurately. In the early days, the detection of part surface accuracy in enterprises could only be carried out through manual screening, but manual detection is inefficient and has large errors. Even with the assistance of some tools, large errors are still prone to occur, resulting in low detection efficiency. At present, the common part surface accuracy detection equipment is mainly a three-coordinate measuring machine, which is a kind of probe at the end of the robotic arm that contacts the surface of the part to be measured, obtains several measurement points, and fits the point data of the part to be measured in space, such as spheres, circles, cylinders, curved surfaces, etc., and calculates the shape error, position tolerance and other data of the part surface through the built-in measurement algorithm.

[0003] Chinese patent CN211262128U discloses a device for detecting the three-dimensional size of a microstructure on a part's irregular surface. The key points of its technical solution are: it includes an XY horizontal moving platform and a Z-axis moving component, and is also provided with a CCD camera component for detecting two-dimensional size. A distance measuring component is provided on the Z-axis moving component to accurately measure the height of the microstructure on the irregular surface, thereby achieving high-precision measurement of the three-dimensional size of the microstructure on the irregular surface of the part; automatic scanning of height or depth measurement is achieved through the XY horizontal moving platform, and automatic focusing of a one-dimensional optical distance measuring sensor is achieved through the Z-axis moving component.

[0004] However, in actual use, since the testing equipment does not have the function of automatic pick-and-place, once the staff collides with the parts inside the testing equipment when picking up and placing the parts, it will affect the work of the testing equipment and also cause injuries to the staff. Summary of the invention

[0005] In order to realize automatic picking and placing of parts, the present application provides a part surface dimension detection device and a detection method thereof.

[0006] The part surface dimension detection device and detection method provided in this application adopt the following technical solutions: First aspect A part surface dimension detection device comprises a detection platform, wherein the upper surface of the detection platform is provided with four limit holes in a rectangular array, the upper surface of the detection platform is connected with a pick-up and placement assembly through the limit holes, the side wall of the detection platform is detachably installed with an automatic lubrication device, one side of the upper surface of the detection platform is fixedly connected with a part positioning assembly, the upper surface of the detection platform is symmetrically provided with two limit slides along the center, the top end of the inner part of the limit slide is detachably installed with a first limit rod, the surface of the first limit rod is movably sleeved with a first slider, the bottom end of the side wall of the first slider is detachably installed with a first hydraulic telescopic rod, the top end of the first slider is fixedly connected with a support frame, the top end of the support frame is fixedly connected with a transverse movement module, the surface of the transverse movement module is detachably installed with an electric cylinder, and the bottom end of the electric cylinder is fixedly connected with a detection probe.

[0007] By adopting the above technical solution, a pick-and-place assembly is provided to replace the staff in picking up and placing parts, thereby reducing the possibility of collision between the staff and the parts inside the detection equipment when picking up and placing parts.

[0008] Optionally, the pick-and-place assembly includes a stabilizing frame and a first through hole, two first through holes are symmetrically formed on the surface of the stabilizing frame along the center, and the bottom end of the stabilizing frame is adapted to the inside of the limiting hole.

[0009] Optionally, two second limiting rods are detachably mounted on the top end of the interior of the stabilizing frame in a symmetrical manner along the center, and a second sliding block is movably sleeved on the surface of the second limiting rod.

[0010] Optionally, two second through holes are symmetrically formed on the side wall of the second slider along the center, and a second hydraulic telescopic rod is detachably installed on the middle part of the side wall of the second slider, and one end of the second hydraulic telescopic rod is connected to one side of the top end inside the stabilization frame.

[0011] Optionally, two third through holes are symmetrically provided on the surface of the second slider along the center, and two hydraulic lifting rods are detachably installed symmetrically along the center on the lower surface of the second slider, and a clamping assembly is fixedly connected to the bottom end of the hydraulic lifting rod.

[0012] Optionally, the clamping assembly includes a stabilizing block, a third slider and a stabilizing plate, the front side of the stabilizing block is symmetrically and movably connected with two third sliders along the center, the middle part of the upper surface of the third slider is fixedly connected with a stabilizing plate, and one side of the lower surface of the stabilizing block is connected to the bottom end of the hydraulic lifting rod.

[0013] Optionally, a connecting plate is fixedly installed on the top of the third slider through the stabilizing plate, and a third hydraulic telescopic rod is detachably installed on the top of the side wall of the stabilizing plate. There are two stabilizing plates, and a clamping block is fixedly connected to one side of the upper surface of the connecting plate. An arc-shaped fastening pad is bonded to the side wall of the clamping block, and the material of the arc-shaped fastening pad is a rubber component.

[0014] Optionally, the automatic lubrication equipment includes a stable base, a small centrifugal pump, a connecting hose, a connecting elbow and a storage box, the front of the stable base is fixedly connected to a small centrifugal pump, the input end of the small centrifugal pump is symmetrically connected to a connecting hose along the center, the output end of the small centrifugal pump is symmetrically connected to two connecting elbows along the center, one end of the connecting elbow is connected to a storage box, the back of the stable base is connected to the side wall of the detection bench, one end of the connecting hose is connected to the interior of the second through hole through the first through hole and the third through hole, the back of the storage box is connected to the side wall of the detection bench, and the interior of the storage box is filled with lubricating oil.

[0015] Optionally, the part positioning assembly includes a connecting ring, a support rod, a fourth hydraulic telescopic rod, an arc-shaped positioning plate and a suction cup, the side wall of the connecting ring is fixedly connected with two support rods symmetrically along the center, the interior of the connecting ring is symmetrically and detachably installed with two fourth hydraulic telescopic rods along the center, the bottom end of the fourth hydraulic telescopic rod is fixedly connected with an arc-shaped positioning plate, the upper surface of the arc-shaped positioning plate is fixedly installed with multiple suction cups in an arc-shaped array, one end of the support rod is connected to one side of the upper surface of the inspection platform, the side wall of the suction cup is in contact with the surface of the part to be inspected, the number of the suction cups is several, and the several suction cups are equally divided into two groups.

[0016] By adopting the above technical scheme, when it is necessary to pick and place the parts to be inspected, the second hydraulic telescopic rod inside the pick and place assembly is first started to make it telescopic, and then the second hydraulic telescopic rod will drive the second slider movably sleeved on the surface of the second limit rod to move. Because the clamping assembly is connected to the second slider through the hydraulic lifting rod, the movement of the second slider can drive the clamping assembly to move until the clamping assembly is moved directly above the parts to be picked and placed, and then the hydraulic lifting rod is started to drive the clamping assembly to move downward until the two groups of clamping blocks are lowered to the surface of the parts to be picked and placed, and finally the third hydraulic telescopic rod inside the clamping assembly is started to pick and place the parts to be inspected; the second hydraulic telescopic rod, the hydraulic lifting rod and the third hydraulic telescopic rod all have the function of automatic extension and retraction, replacing the staff in picking and placing parts.

[0017] Second aspect Part surface dimension detection equipment and detection method, including: S1, the second hydraulic telescopic rod is started, driving the second slider movably sleeved on the surface of the second limit rod to move, and the movement of the second slider drives the clamping assembly to move until the clamping assembly is moved directly above the part to be picked up and placed, and the hydraulic lifting rod is started to drive the clamping assembly to move downward, and the two sets of clamping blocks are lowered to the surface of the part to be picked up and placed; S2, the third hydraulic telescopic rod is started to drive the third sliding block to retract, and the clamping block moves until the side wall of the arc-shaped fastening pad is closely fitted with the surface of the part; S3. Start the small centrifugal pump to transport the lubricating oil in the storage box to the inside of the connecting hose through the connecting elbow, and the connecting hose transports a small amount of lubricating oil to the inside of the second through hole.

[0018] In summary, the present application includes the following beneficial technical effects: 1. By setting up a pick-and-place assembly, when it is necessary to pick and place the parts to be inspected, first start the second hydraulic telescopic rod inside the pick-and-place assembly to make it telescopic, and then the second hydraulic telescopic rod will drive the second sliding block movably sleeved on the surface of the second limit rod to move. Because the clamping assembly is connected to the second sliding block through the hydraulic lifting rod, the movement of the second sliding block can drive the clamping assembly to move until the clamping assembly is moved to just above the parts to be picked and placed, and then start the hydraulic lifting rod to drive the clamping assembly to move downward until the two groups of clamping blocks are lowered to the surface of the parts to be picked and placed, and finally start the third hydraulic telescopic rod inside the clamping assembly to pick and place the parts to be inspected. The second hydraulic telescopic rod, the hydraulic lifting rod and the third hydraulic telescopic rod all have the function of automatic telescopic extension, which can replace the staff to pick and place parts, thereby reducing the safety hazards of the detection device; 2. By setting the arc-shaped fastening pad, when the two groups of clamping blocks are lowered to the surface of the parts to be picked up and placed, the third hydraulic telescopic rod is started to drive the third slider movably sleeved on the surface of the stabilizing block to retract. Because the clamping block is connected to the third slider through the connecting plate and the stabilizing plate, the movement of the third slider can drive the clamping block to move until the side wall of the arc-shaped fastening pad is tightly fitted with the surface of the parts. Because the material of the arc-shaped fastening pad is a rubber component, it can increase the friction between the parts and reduce the phenomenon of parts falling when picking and placing parts; 3. By setting up an automatic lubrication device, when the pick-and-place component has been used for a period of time, the small centrifugal pump inside the automatic lubrication device is powered on to make it work, and then the small centrifugal pump will transport the lubricating oil stored in the storage box to the inside of the connecting hose through the connecting elbow, and then the connecting hose will transport a small amount of lubricating oil to the inside of the second through hole. At this time, the friction between the second slider and the second limit rod can be reduced, thereby increasing the service life of the pick-and-place component and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the part surface dimension detection device according to the embodiment of the present application.

[0020] Figure 2 It is a schematic diagram of the assembly of the testing platform and the support frame according to the embodiment of the present application.

[0021] Figure 3 It is a schematic diagram of the assembly of the detection platform and the pick-and-place component of the embodiment of the present application.

[0022] Figure 4 It is a schematic diagram of the disassembly of the pick-and-place component of the embodiment of the present application.

[0023] Figure 5 It is a schematic diagram of the disassembly of the clamping assembly of the embodiment of the present application.

[0024] Figure 6 It is a schematic diagram of the structure of the automatic lubrication device of the embodiment of the present application.

[0025] Figure 7 It is a disassembled schematic diagram of the part positioning assembly of the embodiment of the present application.

[0026] Explanation of the reference numerals: 1. test bench; 2. limit hole; 3. pick-and-place assembly; 4. automatic lubrication device; 5. parts positioning assembly; 6. limit slide; 7. first limit rod; 8. first slide block; 9. first hydraulic telescopic rod; 10. support frame; 11. transverse movement module; 12. electric cylinder; 13. detection probe; 31. stabilizing frame; 32. first through hole; 33. second limit rod; 34. second slide block; 35. second through hole; 36. second hydraulic telescopic rod; 37. third through hole hole; 38, hydraulic lifting rod; 39, clamping assembly; 391, stabilizing block; 392, third slider; 393, stabilizing plate; 394, connecting plate; 395, third hydraulic telescopic rod; 396, clamping block; 397, arc-shaped fastening pad; 41, stable base; 42, small centrifugal pump; 43, connecting hose; 44, connecting elbow; 45, storage box; 51, connecting ring; 52, support rod; 53, fourth hydraulic telescopic rod; 54, arc-shaped positioning plate; 55, suction cup. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-7 This application is described in further detail.

[0028] The present application embodiment discloses a device for detecting the surface dimensions of a part. Figure 1 and Figure 2The part surface dimension detection device comprises a detection platform 1, and four limiting holes 2 are provided on the upper surface of the detection platform 1 in a rectangular array, and a pick-up and placement component 3 is connected to the upper surface of the detection platform 1 through the limiting holes 2. An automatic lubrication device 4 is detachably installed on the side wall of the detection platform 1, and a part positioning component 5 is fixedly connected to one side of the upper surface of the detection platform 1. Two limiting slides 6 are symmetrically provided on the upper surface of the detection platform 1 along the center, and a first limiting rod 7 is detachably installed on the top of the limiting slide 6, and a first slider 8 is movably sleeved on the surface of the first limiting rod 7, and a first hydraulic telescopic rod 9 is detachably installed on the bottom end of the side wall of the first slider 8. A support frame 10 is fixedly connected to the top of the first slider 8, and a lateral movement module 11 is fixedly connected to the top of the support frame 10, and an electric cylinder 12 is detachably installed on the surface of the lateral movement module 11, and a detection probe 13 is fixedly connected to the bottom end of the electric cylinder 12. The setting of the limiting holes 2 is conducive to separating the pick-up and placement component 3 from the detection platform 1, thereby facilitating the disassembly and assembly of the pick-up and placement component 3.

[0029] Reference Figure 3 and Figure 4 The pick-and-place assembly 3 includes a stabilizing frame 31 and a first through hole 32. Two first through holes 32 are symmetrically formed on the surface of the stabilizing frame 31 along the center. The bottom end of the stabilizing frame 31 is adapted to the inside of the limiting hole 2. Two second limiting rods 33 are detachably installed at the top of the inside of the stabilizing frame 31 along the center. A second slider 34 is movably sleeved on the surface of the second limiting rod 33. Two second through holes 35 are symmetrically formed on the side wall of the second slider 34 along the center. A second hydraulic telescopic rod 36 is detachably installed in the middle of the side wall of the second slider 34. One end of the second hydraulic telescopic rod 36 is connected to one side of the top of the inside of the stabilizing frame 31. Two second through holes 35 are symmetrically formed on the side wall of the second slider 34 along the center. A second hydraulic telescopic rod 36 is detachably installed in the middle of the side wall of the second slider 34. One end of the second hydraulic telescopic rod 36 is connected to one side of the top of the inside of the stabilizing frame 31.

[0030] Reference Figure 5 The clamping assembly 39 includes a stabilizing block 391, a third slider 392 and a stabilizing plate 393. The front of the stabilizing block 391 is symmetrically sleeved with two third sliders 392 along the center. The middle of the upper surface of the third slider 392 is fixedly connected with a stabilizing plate 393. One side of the lower surface of the stabilizing block 391 is connected to the bottom end of the hydraulic lifting rod 38. The top of the third slider 392 is fixedly installed with a connecting plate 394 through the stabilizing plate 393. The top of the side wall of the stabilizing plate 393 is detachably installed with a third hydraulic telescopic rod 395. There are two stabilizing plates 393. One side of the upper surface of the connecting plate 394 is fixedly connected with a clamping block 396. The side wall of the clamping block 396 is bonded with an arc-shaped fastening pad 397, and the material of the arc-shaped fastening pad 397 is a rubber component. Setting the material of the arc-shaped fastening pad 397 as a rubber component is conducive to ensuring the quality of the parts when clamping the parts to be tested.

[0031] When it is necessary to pick and place the part to be inspected, the second hydraulic telescopic rod 36 inside the pick and place assembly 3 is first activated to make it telescopic; then the second hydraulic telescopic rod 36 will drive the second slider 34 movably sleeved on the surface of the second limit rod 33 to move. The movement of the second slider 34 can drive the clamping assembly 39 to move until the clamping assembly 39 is moved directly above the part to be picked and placed. Then the hydraulic lifting rod 38 is activated to drive the clamping assembly 39 to move downward until the two sets of clamping blocks 396 are lowered to the surface of the part to be picked and placed.

[0032] At this time, the third hydraulic telescopic rod 395 is started to drive the third slider 392 movably sleeved on the surface of the stabilizing block 391 to retract. Because the clamping block 396 is connected to the third slider 392 through the connecting plate 394 and the stabilizing plate 393, the movement of the third slider 392 can drive the clamping block 396 to move until the side wall of the arc-shaped fastening pad 397 is tightly fitted with the surface of the part. Because the material of the arc-shaped fastening pad 397 is a rubber component, it can increase the friction between the part and the part, thereby preventing the part from falling when taking and placing the part. Reference Figure 6 The automatic lubrication device 4 includes a stable base 41, a small centrifugal pump 42, a connecting hose 43, a connecting elbow 44 and a storage box 45. The front of the stable base 41 is fixedly connected to the small centrifugal pump 42, the input end of the small centrifugal pump 42 is symmetrically connected to the connecting hose 43 along the center, the output end of the small centrifugal pump 42 is symmetrically connected to two connecting elbows 44 along the center, one end of the connecting elbow 44 is connected to the storage box 45, the back of the stable base 41 is connected to the side wall of the detection platform 1, one end of the connecting hose 43 is connected to the inside of the second through hole 35 through the first through hole 32 and the third through hole 37, the back of the storage box 45 is connected to the side wall of the detection platform 1, and the inside of the storage box 45 is filled with lubricating oil.

[0033] After the pick-and-place assembly 3 has been used for a period of time, the small centrifugal pump 42 inside the automatic lubrication device 4 is powered on to make it work, and then the small centrifugal pump 42 will transport the lubricating oil stored in the storage box 45 to the inside of the connecting hose 43 through the connecting elbow 44, and then the connecting hose 43 will transport a small amount of lubricating oil to the inside of the second through hole 35. At this time, the friction between the second slider 34 and the second limit rod 33 can be reduced, thereby increasing the service life of the pick-and-place assembly 3 and reducing costs.

[0034] Reference Figure 7The part positioning assembly 5 includes a connecting ring 51, a support rod 52, a fourth hydraulic telescopic rod 53, an arc-shaped positioning plate 54 and a suction cup 55. The side wall of the connecting ring 51 is fixedly connected with two support rods 52 symmetrically along the center. The interior of the connecting ring 51 is symmetrically and detachably installed with two fourth hydraulic telescopic rods 53 along the center. The bottom end of the fourth hydraulic telescopic rod 53 is fixedly connected with an arc-shaped positioning plate 54. A plurality of suction cups 55 are fixedly installed on the upper surface of the arc-shaped positioning plate 54 in an arc-shaped array. One end of the support rod 52 is connected to one side of the upper surface of the inspection table 1. The side wall of the suction cup 55 fits with the surface of the part to be inspected. There are several suction cups 55, and the several suction cups 55 are equally divided into two groups.

[0035] When the part needs to be fixed, the fourth hydraulic telescopic rod 53 is activated to drive the two arc-shaped positioning plates 54 to approach each other until the suction cup 55 abuts against the part to fix the part. By setting the part positioning assembly 5, it is beneficial to adapt to various types of parts, thereby enhancing the adaptability of the device.

[0036] The implementation principle of the part surface dimension detection equipment of the embodiment of the present application is as follows: the second hydraulic telescopic rod 36 drives the second slider 34 to move, thereby driving the clamping assembly 39 to move to the top of the part to be picked up. The hydraulic lifting rod 38 is started, driving the clamping assembly 39 to move downward until the two sets of clamping blocks 396 are lowered to the surface of the part to be picked up. At this time, the third hydraulic telescopic rod 395 is started, driving the third slider 392 and the clamping block 396 to move until the side wall of the arc-shaped fastening pad 397 is tightly fitted with the surface of the part to clamp the part. Then the fourth hydraulic telescopic rod 53 is started, driving the two arc-shaped positioning plates 54 to move closer to each other until the suction cup 55 is against the part to fix the part. The first hydraulic telescopic rod 9, the lateral movement module 11 and the electric cylinder 12 cooperate to drive the detection probe 13 to move in three-dimensional space to detect the part.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A part surface dimension detection device, comprising a detection table (1), characterized in that: The upper surface of the detection platform (1) is provided with four limiting holes (2) in a rectangular array, the upper surface of the detection platform (1) is connected to a pick-and-place assembly (3) through the limiting holes (2), the side wall of the detection platform (1) is detachably mounted with an automatic lubrication device (4), one side of the upper surface of the detection platform (1) is fixedly connected with a part positioning assembly (5), the upper surface of the detection platform (1) is provided with two limiting slide grooves (6) symmetrically along the center, the top of the limiting slide groove (6) is detachably mounted with a first limiting rod (7), the surface of the first limiting rod (7) is movably sleeved with a first slider (8), the bottom end of the side wall of the first slider (8) is detachably mounted with a first hydraulic telescopic rod (9), the top of the first slider (8) is fixedly connected with a support frame (10), the top of the support frame (10) is fixedly connected with a transverse module (11), the surface of the transverse module (11) is detachably mounted with an electric cylinder (12), and the bottom end of the electric cylinder (12) is fixedly connected with a detection probe (13).

2. The part surface dimension detection device according to claim 1, characterized in that: The pick-and-place assembly (3) comprises a stabilizing frame (31) and a first through hole (32); two first through holes (32) are symmetrically provided on the surface of the stabilizing frame (31) along the center; and the bottom end of the stabilizing frame (31) is adapted to the inside of the limiting hole (2).

3. The part surface dimension detection device according to claim 2 is characterized in that: Two second limiting rods (33) are detachably mounted on the top end of the interior of the stabilizing frame (31) symmetrically along the center, and a second sliding block (34) is movably sleeved on the surface of the second limiting rod (33).

4. The part surface dimension detection device according to claim 3 is characterized in that: Two second through holes (35) are symmetrically formed along the center of the side wall of the second sliding block (34); a second hydraulic telescopic rod (36) is detachably mounted in the middle of the side wall of the second sliding block (34); one end of the second hydraulic telescopic rod (36) is connected to one side of the top end of the interior of the stabilizing frame (31).

5. The part surface dimension detection device according to claim 4, characterized in that: Two third through holes (37) are symmetrically provided on the surface of the second slider (34) along the center, and two hydraulic lifting rods (38) are detachably mounted symmetrically on the lower surface of the second slider (34) along the center, wherein the bottom ends of the hydraulic lifting rods (38) are fixedly connected to a clamping assembly (39).

6. The part surface dimension detection device according to claim 5, characterized in that: The clamping assembly (39) comprises a stabilizing block (391), a third slider (392) and a stabilizing plate (393); the front surface of the stabilizing block (391) is symmetrically and movably sleeved with two third sliders (392) along the center; the middle of the upper surface of the third slider (392) is fixedly connected to the stabilizing plate (393); and one side of the lower surface of the stabilizing block (391) is connected to the bottom end of the hydraulic lifting rod (38).

7. The part surface dimension detection device according to claim 6, characterized in that: A connecting plate (394) is fixedly mounted on the top of the third sliding block (392) via the stabilizing plate (393); a third hydraulic telescopic rod (395) is detachably mounted on the top of the side wall of the stabilizing plate (393); there are two stabilizing plates (393); a clamping block (396) is fixedly connected to one side of the upper surface of the connecting plate (394); an arc-shaped fastening pad (397) is bonded to the side wall of the clamping block (396); and the arc-shaped fastening pad (397) is made of a rubber component.

8. The part surface dimension detection device according to claim 1, characterized in that: The automatic lubrication device (4) comprises a stable base (41), a small centrifugal pump (42), a connecting hose (43), a connecting elbow (44) and a storage box (45); the front side of the stable base (41) is fixedly connected to the small centrifugal pump (42); the input end of the small centrifugal pump (42) is symmetrically connected to the connecting hose (43) along the center; the output end of the small centrifugal pump (42) is symmetrically connected to two connecting elbows (44) along the center; one end of the connecting elbow (44) is connected to the storage box (45); the back side of the stable base (41) is connected to the side wall of the detection platform (1); one end of the connecting hose (43) is connected to the inside of the second through hole (35) through the first through hole (32) and the third through hole (37); the back side of the storage box (45) is connected to the side wall of the detection platform (1); and the inside of the storage box (45) is filled with lubricating oil.

9. The part surface dimension detection device according to claim 1, characterized in that: The part positioning assembly (5) comprises a connecting ring (51), a supporting rod (52), a fourth hydraulic telescopic rod (53), an arc-shaped positioning plate (54) and a suction cup (55); the side wall of the connecting ring (51) is fixedly connected to two supporting rods (52) along the center symmetrically; the interior of the connecting ring (51) is detachably mounted with two fourth hydraulic telescopic rods (53) along the center symmetrically; the bottom end of the fourth hydraulic telescopic rod (53) is fixedly connected to an arc-shaped positioning plate (54); the upper surface of the arc-shaped positioning plate (54) is fixedly mounted with a plurality of suction cups (55) in an arc-shaped array; one end of the supporting rod (52) is connected to one side of the upper surface of the inspection platform (1); the side wall of the suction cup (55) is in contact with the surface of the part to be inspected; the number of the suction cups (55) is a plurality, and the plurality of suction cups (55) are equally divided into two groups.

10. The part surface dimension detection device according to any one of claims 1 to 9, wherein the detection method is as follows, characterized in that: The following steps are included: S1, the second hydraulic telescopic rod (36) is started to drive the second slider (34) movably sleeved on the surface of the second limit rod (33) to move, and the movement of the second slider (34) drives the clamping assembly (39) to move until the clamping assembly (39) is moved to the top of the part to be picked up and placed, and the hydraulic lifting rod (38) is started to drive the clamping assembly (39) to move downward, and the two sets of clamping blocks (396) are lowered to the surface of the part to be picked up and placed; S2, the third hydraulic telescopic rod (395) is started to drive the third sliding block (392) to retract, and the clamping block (396) moves until the side wall of the arc-shaped fastening pad (397) is tightly fitted with the surface of the part; S3, starting the small centrifugal pump (42) to transport the lubricating oil in the storage box (45) to the inside of the connecting hose (43) through the connecting elbow (44), and the connecting hose (43) transports a small amount of lubricating oil to the inside of the second through hole (35).

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