Shaft workpiece residual stress blind hole method detection platform

Abstract

The invention provides a blind hole method residual stress detection platform for shaft workpieces. The blind hole method residual stress detection platform comprises a base, a support, a drilling testing device, a supporting seat, an angle scale and a lifting supporting device, the supporting seat is fixedly connected with the base, the drilling testing device is arranged on the supporting seat, and the supporting seat is arranged on a base rail and can horizontally move along the rail; the angle scale is fixed on a detected axle; the lifting supporting device is fixedly connected with the base. The detection platform can quickly adjust the overall level of the platform at any time through the design of movable supporting legs of the base; through the distance between the supporting seats and the relative positions of the supporting wheel seats on the supporting seats, the device is suitable for the sizes of different shaft workpieces to be tested. The relative position of the drilling testing device and the shaft workpiece is adjusted through the height of the inclined supporting plate of the support and the position of the support on the base rail, and then the magnetic type angle scale is matched to position the drilling angle. The blind hole method detection of the residual stress of different types of shaft workpieces is realized, and the detection efficiency and accuracy are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of metal workpiece detection, relates to the detection of residual stress of axles, and specifically is a blind hole method detection platform for residual stress of shaft workpieces. Background Art

[0002] Metal materials will produce different residual stresses during mechanical processing and thermal processing. The existence of residual stress will reduce the mechanical properties of the workpiece and cause process defects such as deformation and cracking. Therefore, the detection of residual stress is of great significance for the effect of heat treatment process, surface strengthening process, stress relief process and scrap analysis. At present, the more mature and widely used residual stress testing methods can be roughly divided into two categories: mechanical destructive testing method and non-destructive testing method. Among them, the blind hole method is the most commonly used mechanical destructive testing method in the industry, which has the advantages of accurate detection.

[0003] However, when the blind hole method is applied to shaft workpiece products, it is limited by the size of the detection instrument itself and cannot directly detect the workpiece. Therefore, it is necessary to design a special device for residual stress detection of shaft workpieces. Summary of the invention

[0004] The purpose of the present invention is to provide a blind hole method detection platform for residual stress of shaft workpieces, which can directly detect the residual stress of shaft workpieces and improve the detection efficiency and accuracy.

[0005] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: A blind hole method detection platform for residual stress of shaft workpieces includes: a base, a support, a drilling test device, a support seat, an angle plate and a lifting support device; the support seat is fixedly connected to the base, the drilling test device is placed on the support, and the support is placed on a base track and can move horizontally along the track; the angle plate is fixed on the axle to be inspected; the lifting support device is fixedly connected to the base.

[0006] Furthermore, the base includes a main beam, a guide beam, a cross beam one, a support leg, a lower reinforcing beam, a cross beam two, a cross beam three, a cross beam four, a support foot, and a guide rail; the guide rail and the guide rail beam are fixedly connected, the main beam and the guide rail beam are parallel and horizontally arranged, cross beam one is fixedly connected to the main beam and the guide rail beam, cross beam two and cross beam three are placed between the main beam and the guide rail beam and arranged at intervals, the support legs are placed under the main beam and the guide rail beam and vertically connected thereto, the support foot and the support legs are fixedly connected, cross beam four is horizontally arranged and fixedly connected to the support legs, and the lower reinforcing beam is horizontally arranged and fixedly connected to cross beam four.

[0007] Furthermore, the support includes a support plate, an inclined support plate, a pad, a locking block, and a slider; the support plate is fixedly connected to the slider, the inclined support plate is connected to the support plate, the pad is connected to the inclined support plate, and the locking block is fixedly connected to the support plate with bolts.

[0008] Furthermore, a slide groove is processed on the support plate, and scale lines are marked on the slide groove. The scale lines marked on the slide groove cooperate with the bolts to accurately adjust the relative position of the support plate and the inclined support plate, thereby adjusting the height of the pad.

[0009] Furthermore, the drilling test device is a stress test drilling machine, and the drilling test device is placed on the pad of the support by magnetic attraction.

[0010] Furthermore, the support seat includes a base plate, a supporting wheel seat, a caster, a caster support shaft, an adjustment block, and a guide key; the caster is connected to the supporting wheel seat through the caster support shaft, the supporting wheel seat is connected to the base plate, the guide key is placed between the supporting wheel seat and the base plate to play a guiding role, and the adjustment block is connected to the base plate by bolts.

[0011] Furthermore, the angle disk includes a disk body, a pointer, a rotating sleeve, and a positioning pin; the disk body is made of magnetic material and has a uniform scale on the surface indicating angles from 0 to 360 degrees, the rotating sleeve is aligned with the center hole of the disk body, and the positioning pin passes through the pointer and the center hole of the disk body and is positioned with the center hole of the test vehicle axle.

[0012] Furthermore, the lifting support device includes a mounting plate, a support plate, a lifting rod, a flange, and a handwheel; the flange and the mounting plate are fixedly connected by bolts; there is an internal thread in the center of the support plate and it is matched and connected with the external thread of the lifting rod; the lifting rod and the flange are connected by threads, and the handwheel is connected to the flange. Rotating the handwheel can operate the lifting rod to lift vertically, thereby driving the support plate to move in the vertical direction.

[0013] The beneficial effects of the present invention are as follows: the present invention, through the movable support foot design of the base, can quickly adjust the platform at any time according to the terrain of the detection environment to ensure the overall level of the platform; by adjusting the support seat spacing and the relative position of the support wheel seat on the support seat, to adapt to the sizes of different shaft workpieces to be tested; by adjusting the height of the inclined support plate of the support and the position of the support on the base track, the relative position of the drilling test device and the shaft workpiece to be tested is adjusted, and at the same time, the magnetic angle disk is used to quickly locate the drilling position; finally, the platform can quickly perform blind hole detection on the residual stress of shaft workpieces of different models, thereby improving detection efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the detection platform according to an embodiment of the present invention; Figure 2 is a structural schematic diagram of a base in an embodiment of the present invention; Figure 3 is a schematic structural diagram of a support in an embodiment of the present invention; Figure 4 is a schematic structural diagram of a support base in an embodiment of the present invention; Figure 5is a schematic diagram of the structure of the angle plate in an embodiment of the present invention; Figure 6 is a schematic structural diagram of a lifting support device in an embodiment of the present invention; In the figure, 1, base; 2, support; 3, drilling test device; 4, support seat; 5, angle plate; 6, lifting support device; 101, main beam; 102, guide rail beam; 103, cross beam; 104, support leg; 105, lower reinforcement beam; 106, cross beam 2; 107, cross beam 3; 108, cross beam 4; 109, support foot; 110, guide rail; 201, support plate; 202, inclined support plate; 2 03, pad; 204, locking block; 205, slider; 401, bottom plate; 402, supporting wheel seat; 403, caster; 404, caster support shaft; 405, adjustment block; 406, guide key; 501, disk; 502, pointer; 503, swivel sleeve; 504, positioning pin; 601, mounting plate; 602, supporting plate; 603, lifting rod; 604, flange; 605, handwheel. DETAILED DESCRIPTION

[0015] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0016] A blind hole detection platform for residual stress of shaft workpieces, such as Figure 1 As shown, it includes a base 1, a support 2, a drilling test device 3, a support seat 4, an angle plate 5, and a lifting support device 6; the test vehicle axle is placed on the support seat 4, the support seat 4 is fixedly connected to the base 1, the support 2 is placed on the guide rail of the base 1, the drilling test device 3 is placed on the support 2, the support 2 can slide on the guide rail of the base 1, and is used to drive the drilling test device 3 to move horizontally along the guide rail, the angle plate 5 and the test vehicle axle are fixed by magnetic attraction, and the lifting support device 6 is fixed on the base 1.

[0017] Base 1 Figure 2As shown, it includes a main beam 101, a guide beam 102, a cross beam 103, a leg 104, a lower reinforcing beam 105, a second cross beam 106, a third cross beam 107, a fourth cross beam 108, a support foot 109, and a guide rail 110; the guide rail 110 is fixedly connected to the guide beam 102, the main beam 101 is parallel to the guide beam 102 and is arranged horizontally, the first cross beam 103 is fixed between the main beam 101 and the guide beam 102, the second cross beam 106 and the third cross beam 107 are placed between the main beam 101 and the guide beam 102 and are arranged at intervals, the leg 104 is placed below the main beam 101 and the guide beam 102 and is vertically connected to the main beam 101 and the guide beam 102, the support foot 109 is fixedly connected to the leg 104, the fourth cross beam 108 is arranged horizontally and fixedly connected to the leg 104, and the lower reinforcing beam 105 is arranged horizontally and fixedly connected to the fourth cross beam 108.

[0018] Support 2 Figure 3 As shown, it includes a support plate 201, an inclined support plate 202, a pad 203, a locking block 204, and a slider 205; the support plate 201 is fixedly connected to the slider 205, the inclined support plate 202 is connected to the support plate 201, the pad 203 is connected to the support plate 201, and the locking block 204 is fixedly connected to the support plate 201 with bolts.

[0019] A slide groove 206 is processed on the support plate 201, and a scale line 207 is marked on the slide groove 206. The scale line 207 marked on the slide groove 206 cooperates with the bolt 208 to accurately adjust the relative position of the support plate 201 and the inclined support plate 202, thereby adjusting the height of the pad 203.

[0020] The drilling test device 3 is a stress test drilling machine, which is placed on the pad 203 of the support 2 by magnetic attraction.

[0021] Support seat 4 Figure 4 As shown, it includes a base plate 401, a supporting wheel seat 402, a caster 403, a caster support shaft 404, an adjustment block 405, and a guide key 406. The caster 403 is connected to the supporting wheel seat 402 through the caster support shaft 404, the supporting wheel seat 402 is connected to the base plate 401, and the guide key 406 is placed between the supporting wheel seat 402 and the base plate 401 to play a guiding role; the adjustment block 405 is connected to the base plate 401 by bolts.

[0022] Angle plate 5 Figure 5 As shown, it includes a disk body 501, a pointer 502, a rotating sleeve 503, and a positioning pin 504. The disk body 501 is made of magnetic material, and a circle of uniform scales on the surface indicate angles from 0 to 360 degrees. The rotating sleeve 503 is aligned with the center hole of the disk body 501, and the positioning pin 504 passes through the pointer 502 and the center hole of the disk body 501 and then cooperates with the center hole of the test axle for positioning.

[0023] The lifting support device 6 is as follows Figure 6As shown, it includes a mounting plate 601, a support frame 602, a lifting rod 603, a flange 604, and a handwheel 605; the flange 604 is fixedly connected to the mounting plate 601 by bolts, and there is an internal thread at the center of the support frame 602 and is matched with the external thread of the lifting rod 603; the lifting rod 603 is connected to the flange 604 by threads, and the handwheel 605 is connected to the flange 604. Rotating the handwheel 605 can operate the lifting rod 603 to rise and fall vertically, thereby driving the support frame 602 to move in the vertical direction.

[0024] Before testing, the support feet 109 of the base 1 are adjusted according to the terrain to keep the base 1 level as a whole. There are two support seats 4. After adjusting the spacing between the support seats 4 according to the supported parts of the tested axle, they are connected to the base 1 through bolts. Then the tested axle is placed on the support seat 4. According to the different diameters of the supported parts of the tested axle, the support wheel seat 402 can be adjusted horizontally. When the tested axle is adjusted to be level, it is fixedly connected to the bottom plate 401 with bolts. The guide key 406 is placed on the bottom plate 401 of the support seat 4, between the two adjustment blocks 405, and plays a guiding role when adjusting the position of the support wheel seat 402.

[0025] The support 2 can be placed on the support frame 602 of the lifting support device 6 when it is not in working state. Before using the platform for testing, the inclined support plate 202 in the support 2 is vertically moved according to the diameter of the drilling part of the test axle, and after adjusting it into place, it is connected and fixed with the support plate 201 with bolts. After being fixed, the support 2 is placed on the guide rail 110 of the base 1, and the stress test drilling machine is placed on the pad 203 in the support 2 by magnetic attraction. The support 2 is moved horizontally along the guide rail 110 to drive the stress test drilling machine to move to the drilling test part of the test axle, and the locking block 204 is locked in the fixed position.

[0026] Afterwards, the angle disk 5 is fixed to the end of the test axle by magnetic attraction. When drilling holes at different angles of the test axle, the scale on the angle disk 5 can be referred to. The test axle can be rotated to a specific angle before performing the drilling test operation, thereby achieving fast, efficient and accurate positioning.

[0027] After the operation is completed, the support 2 together with the drilling test device 3 can be moved to the support plate 602 of the lifting support device 6, and the height of the support 2 can be adjusted before the next test.

[0028] The blind hole method detection platform for residual stress of shaft workpieces is designed with movable support feet 109 of the base 1. According to the terrain of the detection environment, the platform can be quickly adjusted at any time to ensure the overall level of the platform; by adjusting the spacing between the support seats 4 and the relative positions of the support wheel seats 402 on the support seats 4, it can adapt to the sizes of different shaft workpieces to be tested; by adjusting the height of the inclined support plate 201 of the support 2 and the position of the support 2 on the track 110 of the base 1, the relative position of the drilling test device 3 and the shaft workpiece to be tested is adjusted, and at the same time, the magnetic angle plate 5 is used to quickly locate the drilling position; finally, the platform can quickly perform blind hole method detection on residual stress of shaft workpieces of different models, thereby improving detection efficiency and accuracy.

Claims

1. A blind hole method detection platform for residual stress of shaft workpieces, characterized by: It includes a base, a support, a drilling test device, a support seat, and an angle plate; the support seat is fixedly connected to the base, the drilling test device is placed on the support seat, and the support seat is placed on the track of the base and can move horizontally along the track; the angle plate is fixed to the end of the axle to be inspected.

2. According to claim 1, a residual stress blind hole detection platform for shaft workpieces is characterized by: It also includes a lifting support device, which is fixedly connected to the base.

3. The blind hole residual stress detection platform for shaft workpieces according to claim 1, characterized in that: The base includes a main beam, a guide rail beam, a cross beam one, legs, a lower reinforcing beam, a cross beam two, a cross beam three, a cross beam four, support feet, and a guide rail; the guide rail and the guide rail beam are fixedly connected, the main beam and the guide rail beam are parallel and horizontally arranged, cross beam one is fixedly connected to the main beam and the guide rail beam, cross beam two and cross beam three are placed between the main beam and the guide rail beam and arranged at intervals, the legs are placed under the main beam and the guide rail beam and vertically connected thereto, the support feet and the legs are fixedly connected, cross beam four is horizontally arranged and fixedly connected to the legs, and the lower reinforcing beam is horizontally arranged and fixedly connected to cross beam four.

4. The residual stress blind hole detection platform for shaft workpieces according to claim 1, characterized in that: The support includes a support plate, an inclined support plate, a pad, a locking block, and a slider; the support plate is fixedly connected to the slider, the inclined support plate is connected to the support plate, the pad is connected to the inclined support plate, and the locking block is fixedly connected to the support plate with bolts. A slide groove is processed on the support plate, and scale lines are marked on the slide groove. The relative positions of the support plate and the inclined support plate can be accurately adjusted by matching the scale lines marked on the slide groove with the bolts.

5. The residual stress blind hole detection platform for shaft workpieces according to claim 1, characterized in that: The drilling test device is a stress test drilling machine, and the drilling test device is placed on the pad of the support by magnetic attraction.

6. The residual stress blind hole detection platform for shaft workpieces according to claim 1, characterized in that: The support seat includes a base plate, a supporting wheel seat, a caster, a caster support shaft, an adjustment block, and a guide key; the caster is connected to the supporting wheel seat through the caster support shaft, the supporting wheel seat is connected to the base plate, the guide key is placed between the supporting wheel seat and the base plate to play a guiding role, and the adjustment block is connected to the base plate through bolts.

7. The blind hole residual stress detection platform for shaft workpieces according to claim 1, characterized in that: The angle disk includes a disk body, a pointer, a rotating sleeve, and a positioning pin; the disk body is made of magnetic material and has a uniform scale on the surface indicating angles from 0 to 360 degrees. The rotating sleeve is aligned with the center hole of the disk body, and the positioning pin passes through the pointer and the center hole of the disk body and is fixedly connected to the center hole of the test vehicle axle.

8. The blind hole method residual stress detection platform for shaft workpieces according to claim 2 is characterized by: The lifting support device includes a mounting plate, a support plate, a lifting rod, a flange, and a handwheel; the flange is fixedly connected to the mounting plate by bolts; there is an internal thread at the center of the support plate and it is matched with the external thread of the lifting rod; the lifting rod is connected to the flange by threads, and the handwheel is connected to the flange. Rotating the handwheel can operate the lifting rod to lift vertically, thereby driving the support plate to move in the vertical direction.

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