Axle strain and scratch detector calibration device

Abstract

The utility model relates to the technical field of calibration equipment, and discloses an axle strain and scratch detector calibration device which comprises a base, a mounting groove used for placing a detector is formed in the upper side of the base, a protruding block is arranged at the top of the base, a baffle is fixedly connected to the front end, corresponding to the mounting groove, of the upper side of the base, and a containing groove is formed in the front end of the base. A special detection tool for simulation detection is arranged in the containing groove, a plurality of detection steps are arranged on the outer surface of the special detection tool, the rear ends of the detection steps are connected with the interior of the base through adjusting assemblies, the base is placed on a tray, and one side of the tray is connected with a supporting seat through two bolts. According to the utility model, the detector is placed on the supporting seat and is clamped with the special detection tool, then the depths of the detection steps on the special detection tool are measured in sequence, the actually measured values are recorded, and then error calibration is carried out by referring to the standard values, so that the whole axle strain and scratch detector is calibrated.

Description

Technical Field

[0001] The utility model relates to the technical field of calibration equipment, in particular to a calibration device for an axle scratch and abrasion detector. Background Art

[0002] The axle strain and scratch detector is a professional equipment used to detect strain and scratches on the surface of vehicle axles; this instrument is usually used in vehicle manufacturing, maintenance industries and vehicle inspection stations to ensure the integrity and safety of the axle; there is currently no special device on the market for calibrating the indication error of the axle strain and scratch detector. Now, the digital display indicator of the axle strain and scratch detector is removed, and the indication error of the digital display indicator is calibrated using a digital indicator calibrator, but the overall indication error of the axle strain and scratch detector is not calibrated. Based on this situation, the calibration results of the axle strain and scratch detector cannot be truly reflected, so it is necessary to develop a calibration device for the axle strain and scratch detector.

[0003] The defects of the existing technology are mainly reflected in that the error calibration is only performed on the digital display indicator of the detector, and the error of the detector as a whole is not calibrated. However, the error source of the detector is not only the digital display indicator itself, but also includes the overall structure of the detector, such as the error caused by the mechanical structure or placement of the pointed probe, "V" frame, etc., so the error of the detector should be calibrated as a whole. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art that only the digital display indicator can be calibrated but the axle strain and scratch detector cannot be calibrated as a whole. Therefore, a calibration device for an axle strain and scratch detector is proposed to accurately and effectively detect and calibrate the axle strain and scratch detector, thereby improving the professionalism of the calibration.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A calibration device for an axle strain and scratch detector includes a base, an upper side of the base is provided with a mounting groove for placing the detector, a top of the base is provided with a protrusion, a baffle is fixedly connected to the front end of the upper side of the base corresponding to the mounting groove, a storage groove is provided inside the front end of the base, a special inspection tool for simulating axle strain and scratches is provided inside the storage groove, the outer surface of the special inspection tool is provided with multiple inspection steps, the rear end of the special inspection tool is connected to the inside of the base through an adjustment component, and fixing plates for limiting the detector are installed on the upper sides of the left and right ends of the base, and a fixing component for fixing the detector is provided on the lower side of the fixing plate.

[0007] The base is placed on the pallet, one side of the pallet is connected to the support seat by two bolts, the upper side of the bolt is provided with a limiting ring, the limiting ring is rotatably connected to one side of the pallet, and the bolt is threadedly connected to the support seat.

[0008] Furthermore, first threaded holes are provided on the upper sides of both left and right ends of the base, and fixing bolts are passed through the front and rear ends of the fixing plate, and the lower ends of the fixing bolts are threadedly connected to the inside of the first threaded holes.

[0009] Furthermore, the fixing assembly includes a pressure plate arranged on the lower side of the end of the fixing plate, and limiting holes are opened at the front and rear ends of the fixing plate. A limiting rod is passed through the inside of the limiting hole, and the lower end of the limiting rod is fixedly connected to the upper side of the front and rear ends of the pressure plate.

[0010] Furthermore, the fixing assembly also includes a first screw rod threadedly connected to the middle part of one end of the fixing plate, the lower end of the first screw rod is rotatably connected to a fixing block, the lower end of the fixing block is fixedly connected to the middle part of the upper side of the pressure plate, and the top of the first screw rod is fixedly connected to a rotating block.

[0011] Furthermore, an opening is provided on the lower side of the opposite end of the fixing plate at a position corresponding to the fixing block, so that the fixing block can be received in the opening.

[0012] Furthermore, a third threaded hole is provided in the middle of the rear end of the detection step, and second threaded holes are provided on both sides of the rear end of the detection step corresponding to the left and right sides of the third threaded hole.

[0013] Furthermore, an operating cavity is opened at the rear end of the base, and the adjustment component includes a movable rod. The movable rods are passed through the left and right ends of the operating cavity inside the base. The rear end is fixedly connected to the fiber disk, and the front end is fixedly connected to the second screw. The outer wall of the second screw is threadedly connected to the inside of the second threaded hole.

[0014] Furthermore, the adjustment assembly also includes an adjusting screw threadedly connected to the middle part of the base, the front end of the adjusting screw is rotatably connected to a connecting piece, the front end of the connecting piece is threadedly connected to the inside of the third threaded hole, the rear end of the adjusting screw is fixedly connected to a hexagonal block, a rotating handle is embedded in the outside of the hexagonal block, a fastener is passed through the middle of the rotating handle, and the front end of the fastener is threadedly connected to the inside of the hexagonal block.

[0015] Furthermore, the special gauge is cylindrical, with a diameter of 160 mm and a length of 300 mm.

[0016] Furthermore, there are five detection steps, and the interval between two adjacent steps is 50 mm. The width of the detection steps is 5 mm, and the depths are 1 mm, 2 mm, 3 mm, 4 mm, and 5 mm respectively.

[0017] The utility model has the following beneficial effects:

[0018] 1. In the present invention, the detector can be removed from the base and placed upside down on the support base. A special gauge with a standard depth detection step is designed and installed in the base. The special gauge can be unscrewed from the base. The pointed probe on the detector is then adjusted so that its tip is inserted into the standard depth detection step of the special gauge. The actual measured value is read out through the digital display of the detector, and then compared with the standard value of the step to analyze the error and perform calibration. In addition, to make the measurement and calibration more accurate, the bolts can be fine-tuned during the calibration test so that the special gauge is completely in contact with the bottom of the "V" frame, thereby achieving the purpose of overall calibration of the detector.

[0019] 2. In the present invention, the special inspection tool can be stored in the storage slot, and can be conveniently stored when not in use, thereby avoiding the special inspection tool from having no fixed placement and causing wear, dirt or loss, thereby further avoiding affecting the accuracy of calibration.

[0020] 3. The utility model provides a fixing component on the base, and fixes the detector to the base when the detector is not in use for detection or calibration. Because the detector is a precision instrument and cannot be placed randomly, the application can effectively prevent the detector from being damaged by being placed randomly, and further avoid affecting the detection accuracy of the detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an overall schematic diagram of the calibration device of the axle scratch and abrasion detector proposed by the present invention during calibration and testing;

[0022] Figure 2 This is a schematic diagram of a pallet that can be fine-tuned during calibration and testing of a calibration device for an axle scratch detector proposed by the utility model;

[0023] Figure 3 This is a schematic diagram of a special inspection tool for calibration and inspection of an axle scratch and abrasion detector proposed in the present invention;

[0024] Figure 4 This is a schematic diagram of a calibration device for an axle scratch detector according to the present invention when the detector is stored;

[0025] Figure 5 This is a schematic diagram of the base of a calibration device for an axle scratch detector according to the present invention;

[0026] Figure 6 This is a schematic diagram of a pressure plate of a calibration device for an axle scratch detector according to the present invention;

[0027] Figure 7 This is a schematic diagram of the opening of a calibration device for an axle scratch detector according to the present invention;

[0028] Figure 8 This is a schematic diagram of an adjusting screw of a calibration device for an axle scratch detector according to the present invention;

[0029] Figure 9 This is a schematic diagram of the connecting parts of a calibration device for an axle strain and scratch detector of the utility model.

[0030] Legend:

[0031] 1. Base; 2. Mounting slot; 3. Bump; 4. Baffle; 5. Storage slot; 6. Special inspection fixture; 7. Inspection step; 8. Fixing plate; 9. First threaded hole; 10. Fixing bolt; 11. Pressure plate; 12. Limiting hole; 13. Limiting rod; 14. First screw; 15. Fixing block; 16. Rotating block; 17. Opening; 18. Operating chamber; 19. Movable rod; 20. Fiber disk; 21. Second screw; 22. Second threaded hole; 23. Adjusting screw; 24. Connector; 25. Third threaded hole; 26. Hexagonal block; 27. Rotating handle; 28. Fastener; 29. ​​Support seat; 30. Tray; 31. Limiting ring; 32. Bolt. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figure 1 - Figure 5 The utility model provides an embodiment of a calibration device for an axle strain and abrasion detector, comprising a base 1, a mounting groove 2 for placing the detector is provided on the upper side of the base 1, a protrusion 3 is provided on the top of the base 1, a baffle 4 is fixedly connected to the front end of the mounting groove 2 on the upper side of the base 1, a receiving groove 5 is provided inside the front end of the base 1, a special inspection tool 6 for simulating axle strain and abrasion is provided inside the receiving groove 5, a plurality of inspection steps 7 are provided on the outer surface of the special inspection tool 6, and the rear end of the special inspection tool 6 is connected to the inside of the base 1 through an adjusting component, and fixing plates 8 for limiting the detector are installed on the upper sides of the left and right ends of the base 1, and first threaded holes 9 are provided on the upper sides of the left and right ends of the base 1, and fixing bolts 10 are passed through the front and rear ends of the fixing plate 8, and the lower end of the fixing bolt 10 is threadedly connected to the inside of the first threaded hole 9.

[0034] The base 1 is placed on a tray 30 , and one side of the tray 30 is connected to the support seat 29 via two bolts 32 . The upper side of the bolt 32 has a limiting ring 31 , the limiting ring 31 is rotatably connected to one side of the tray 30 , and the bolt 32 is threadedly connected to the support seat 29 .

[0035] Specifically, refer to Figure 1-3 , place the detector on the upper rear end of the base 1, the lower side of the "V"-shaped frame of the detector is in close contact with the surface of the mounting groove 2, and the protrusion 3 is embedded in the top of the lower side of the "V"-shaped frame. After placement is completed, push the detector forward so that the front end of the "V"-shaped frame is in close contact with the baffle 4, which means that the detector is moved into place for easy storage and fixation; when performing detection and calibration, remove the detector and place it on the support seat 29, then unscrew the special inspection tool 6 from the storage slot 5, and when necessary, turn the bolt 32 to fine-tune the height of the tray 30 so that the special inspection tool 6 is engaged and close to the bottom of the "V"-shaped frame; then adjust the height of the pointed probe on the detector so that the pointed probe contacts the outer surface of the special inspection tool 6, and set the digital display indicator to zero, then measure the five inspection steps 7 set on the special inspection tool 6 respectively, and record the measured values. The difference between the measured value on the digital display indicator and the standard value of the inspection step 7 is the indication error of the inspection step 7.

[0036] Reference Figure 3 、 Figure 5-7 A pressing plate 11 is provided on the lower side of the end of the fixed plate 8, and limiting holes 12 are provided at the front and rear ends of the fixed plate 8. A limiting rod 13 is passed through the inside of the limiting hole 12, and the lower end of the limiting rod 13 is fixedly connected to the upper sides of the front and rear ends of the pressing plate 11. A first screw 14 is threadedly connected to the middle part of the opposite end of the fixed plate 8, and the lower end of the first screw 14 is rotatably connected to a fixing block 15. The lower end of the fixing block 15 is fixedly connected to the middle part of the upper side of the pressing plate 11, and the top of the first screw 14 is fixedly connected to a rotating block 16. An opening 17 is provided on the lower side of the opposite end of the fixed plate 8 corresponding to the position of the fixed block 15, which is used to accommodate the fixing block 15 in the opening 17.

[0037] Specifically, when not in use, the pressure plate 11 is in close contact with the lower side of the fixed plate 8. At this time, the fixing block 15 is located in the opening 17, so that the pressure plate 11 is in close contact with the fixed plate 8, which can prevent the pressure plate 11 from shaking unnecessarily and affect the fixing effect. The limit rod 13 can move up and down in the limit hole 12, thereby driving the pressure plate 11 to move up and down. The fixed block 15 can rotate with the first screw 14 and is connected to the pressure plate 11. When the detector is placed on the base 1, the "V" frame is in close contact with the baffle 4, and the rotating block 16 drives the first screw 14 to rotate. The rotating first screw 14 can move downward, thereby pushing the pressure plate 11 down and pressing on the "V" frame of the detector to fix the detector. The first screw 14 is rotated in the opposite direction. The first screw 14 can drive the pressure plate 11 to rise through the fixing block 15, canceling the fixation of the detector. Because the detector is a precision instrument, it needs to be stored in a fixed place when not being tested or calibrated to prevent it from being damaged and affecting the test results.

[0038] Reference Figure 3 、 Figure 8 and Figure 9 A third threaded hole 25 is provided in the middle of the rear end of the detection step 7, and second threaded holes 22 are provided on both sides of the left and right sides corresponding to the third threaded hole 25 of the rear end of the detection step 7. An operating chamber 18 is provided at the rear end of the base 1, and the adjusting component includes a movable rod 19. The left and right ends of the interior of the base 1 corresponding to the operating chamber 18 are penetrated by movable rods 19, the rear end of which is fixedly connected to a fiber disk 20, and the front end thereof is fixedly connected to a second screw 21. The outer wall of the second screw 21 is threadedly connected to the interior of the second threaded hole 22. The adjusting component also includes an adjusting screw 23 threadedly connected to the middle of the base 1, the front end of the adjusting screw 23 is rotatably connected to a connecting member 24, the front end of the connecting member 24 is threadedly connected to the interior of the third threaded hole 25, and the rear end of the adjusting screw 23 is fixedly connected to a hexagonal block 26, and a rotating handle 27 is embedded in the outside of the hexagonal block 26. A fastener 28 is penetrated in the middle of the rotating handle 27, and the front end of the fastener 28 is threadedly connected to the interior of the hexagonal block 26.

[0039] Specifically, when performing the inspection, the adjusting screw 23 is driven to rotate by rotating the handle 27, and the connecting piece 24 can be rotated at the front end of the adjusting screw 23 to connect the special inspection tool 6. When the adjusting screw 23 is driven to rotate by rotating the handle 27, the adjusting screw 23 can move forward inside the base 1 to push the special inspection tool 6 out of the base 1. When the adjusting screw 23 is rotated in the opposite direction, the adjusting screw 23 moves backward and pulls the special inspection tool 6 into the storage groove 5. The movable rod 19 is provided inside the base 1 and can be pulled back and forth. When the special gauge 6 is driven to move forward and backward by the screw 23, the special gauge 6 is prevented from rotating, while the special gauge 6 is kept stable, which facilitates calibration; the special gauge 6 is pushed out of the storage slot 5, and the movable rod 19 is installed on the special gauge 6 through the second screw 21 and the second threaded hole 22. The movable rod 19 can be removed from the special gauge 6 by rotating it, and then the connecting piece 24 is fixed by a wrench, and the special gauge 6 is rotated to separate the special gauge 6 from the connecting piece 24. The special gauge 6 can be removed for replacement or cleaning.

[0040] Furthermore, the special inspection tool 6 is cylindrical, with a diameter of 160mm and a length of 300mm. There are five inspection steps 7, all arranged around the outer surface of the special inspection tool 6, with an even spacing of 50mm between adjacent steps. The width of the inspection steps 7 is 5mm, and their depths are 1mm, 2mm, 3mm, 4mm, and 5mm, respectively.

[0041] Working principle: Place the detector on the upper rear end of the base 1, then push it forward so that the left and right legs of the "V"-shaped frame of the detector are embedded between the base 1 and the fixed plate 8, so that the front side of the "V"-shaped frame is in close contact with the baffle 4, and then rotate the rotating block 16, and the first screw 14 is driven to rotate by the rotating block 16. The rotating rotating block 16 and the first screw 14 move downward, pushing the pressure plate 11 to move downward, so that the pressure plate 11 is pressed on the upper sides of the left and right ends of the "V"-shaped frame and fixed with the detector, so that the detector can be effectively stored when not in use; hold the rotating handle 27 from the rear end of the base 1 and rotate it, and the rotating adjusting screw 23 can move forward to push or retract the special inspection tool 6 from the storage slot 5. The provided movable rod 19 can prevent the special inspection tool 6 from rotating when the adjusting screw 23 is rotated, and the provided fiber disk 20 can limit the movable rod 19 to prevent it from moving Rod 19 disengages from base 1, and adjusting screw 23 is rotated in the opposite direction, causing it to move backward, pulling special inspection fixture 6 backward and into storage slot 5 for protection. During calibration, the tester is removed and placed on support base 29, and special inspection fixture 6 is pushed out of storage slot 5. If necessary, screw 32 can be fine-tuned to move tray 30 and base 1 up and down, further driving special inspection fixture 6 up and down, allowing special inspection fixture 6 to tightly engage the bottom of the "V" frame directly below. The pointed probe is adjusted to contact the outer surface of special inspection fixture 6, and the digital indicator is set to zero. The tester is then moved, and the tip of the pointed probe is adjusted to the deepest position of inspection step 7. Finally, the depths of the five inspection steps 7 on special inspection fixture 6 are measured in sequence, and the measured values ​​are recorded. The difference between the measured value on the digital indicator and the standard value of the depth of the inspection step 7 is the indication error of the inspection step 7. Technicians can calibrate or correct the error based on actual conditions.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A calibration device for an axle scratch detector, characterized in that: The invention comprises a base (1), wherein the upper side of the base (1) is provided with a mounting groove (2) for placing a detector, the top of the base (1) is provided with a protrusion (3), the upper side of the base (1) is fixedly connected to the front end of the mounting groove (2) corresponding to the upper side of the base (1), a receiving groove (5) is provided inside the front end of the base (1), a special inspection tool (6) for simulating axle strain and abrasion is provided inside the receiving groove (5), a plurality of inspection steps (7) are provided on the outer surface of the special inspection tool (6), the rear end of the special inspection tool (6) is connected to the inside of the base (1) through an adjustment component, and a fixing plate (8) for limiting the detector is installed on the upper side of the left and right ends of the base (1), and a fixing component for fixing the detector is provided on the lower side of the fixing plate (8); The base (1) is placed on a tray (30), one side of the tray (30) is connected to the support seat (29) via two bolts (32), the upper side of the bolt (32) has a limiting ring (31), the limiting ring (31) is rotatably connected to one side of the tray (30), and the bolt (32) is threadedly connected to the support seat (29).

2. The calibration device for an axle scratch detector according to claim 1, characterized in that: A first threaded hole (9) is provided on the upper sides of both left and right ends of the base (1), and a fixing bolt (10) is passed through both front and rear ends of the fixing plate (8), and the lower end of the fixing bolt (10) is threadedly connected to the inside of the first threaded hole (9).

3. The calibration device for an axle scratch detector according to claim 2, characterized in that: The fixing assembly comprises a pressing plate (11) arranged at the lower side of the end of the fixing plate (8), and limiting holes (12) are provided at both the front and rear ends of the fixing plate (8), and a limiting rod (13) is passed through the interior of the limiting hole (12), and the lower end of the limiting rod (13) is fixedly connected to the upper sides of the front and rear ends of the pressing plate (11).

4. The calibration device for an axle scratch detector according to claim 3, characterized in that: The fixing assembly further comprises a first screw (14) threadedly connected to the middle portion of one end of the fixing plate (8), the lower end of the first screw (14) being rotatably connected to a fixing block (15), the lower end of the fixing block (15) being fixedly connected to the middle portion of the upper side of the pressing plate (11), and the top of the first screw (14) being fixedly connected to a rotating block (16).

5. The calibration device for an axle scratch detector according to claim 4, characterized in that: An opening (17) is provided on the lower side of the opposite end of the fixing plate (8) at a position corresponding to the fixing block (15), for receiving the fixing block (15) in the opening (17).

6. The calibration device for an axle scratch detector according to claim 1, characterized in that: A third threaded hole (25) is provided in the middle of the rear end of the special inspection tool (6), and second threaded holes (22) are provided on both the left and right sides of the rear end of the special inspection tool (6) corresponding to the third threaded hole (25).

7. The calibration device for an axle scratch detector according to claim 6, characterized in that: An operating cavity (18) is provided at the rear end of the base (1), and the adjustment assembly includes a movable rod (19). The movable rod (19) is passed through the left and right ends of the base (1) corresponding to the operating cavity (18), and the rear end of the movable rod (19) is fixedly connected to the fiber disk (20), and the front end of the movable rod (19) is fixedly connected to the second screw (21), and the outer wall of the second screw (21) is threadedly connected to the inside of the second threaded hole (22).

8. The calibration device for an axle scratch detector according to claim 7, characterized in that: The adjustment assembly further comprises an adjustment screw (23) threadedly connected to the middle of the base (1), the front end of the adjustment screw (23) being rotatably connected to a connecting piece (24), the front end of the connecting piece (24) being threadedly connected to the inside of the third threaded hole (25), the rear end of the adjustment screw (23) being fixedly connected to a hexagonal block (26), the outside of the hexagonal block (26) being embedded with a rotating handle (27), the middle of the rotating handle (27) being penetrated by a fastener (28), the front end of the fastener (28) being threadedly connected to the inside of the hexagonal block (26).

9. The calibration device for an axle scratch detector according to claim 1, characterized in that: The special inspection tool (6) is cylindrical, with a diameter of 160 mm and a length of 300 mm.

10. The calibration device for an axle scratch detector according to claim 9, characterized in that: There are five detection steps (7), and the interval between two adjacent steps is 50 mm. The width of the detection steps (7) is 5 mm, and the depths are 1 mm, 2 mm, 3 mm, 4 mm, and 5 mm respectively.

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