A trailer axle measuring device

Abstract

The present invention relates to the field of axle measurement technology, and discloses a trailer axle measurement device, including: a measuring machine tool, a probe bending measuring assembly for monitoring the bending and tilting conditions of the measuring probe when subjected to force is arranged around the measuring probe, the probe bending measuring assembly includes a power column installed around the measuring probe to surround the measuring probe, a liquid storage column for accurately transmitting the deformation of the measuring probe is arranged inside the power column, a liquid hose is arranged at the output end of the liquid storage column, and a central control box is arranged at the output end of the liquid hose; the central control box is provided with a power assist mechanism for the probe bending measuring assembly to reversely correct the measuring probe. The present invention uses the measuring probe to pull the tension wire in the probe bending measuring assembly in the opposite direction of the tilt, and instantly squeezes the liquid storage column, which is used as a trigger condition to control the indicator light to light up, and the staff can judge whether the measuring probe has failed according to the precise lighting points of the indicator lights at different positions, to prevent a large amount of error data from continuing to measure.

Description

Technical Field

[0001] The invention relates to the field of axle measurement, and more particularly to a trailer axle measurement device. Background Art

[0002] The trailer axle measuring machine is a device specially used to measure the size and geometric characteristics of axles. The axle measuring machine is usually composed of several sensors and probes installed on the measuring platform. These sensors and probes can sense the shape and size changes of the axle surface and accurately measure the key parameters of the axle such as diameter, length, curvature, and roundness.

[0003] Place the trailer axle on the measuring platform of the measuring machine to ensure that the axle is stable and in the correct position. Use the measuring head or sensor of the measuring machine to scan or contact the axle to obtain the shape and size data of the axle. However, when the trailer axle is processed, there may be some metal debris adsorbed on the surface of the axle, or the axle may have data deviation during processing, causing a sudden increase in diameter. When the probe passes through this place, it is subjected to excessive impact or overload, which may cause it to bend and cause errors in the measurement data. To this end, we propose a trailer axle measurement device. Summary of the invention

[0004] The present invention provides a trailer axle measuring device, which solves the technical problem in the related art that a probe may be bent due to excessive impact force or overload, resulting in errors in measurement data.

[0005] The present invention provides a trailer axle measuring device, comprising: a measuring machine tool, the measuring machine tool comprising a measuring platform, an axle tooling for fixing and clamping the trailer axle is installed on the measuring platform, an electric guide rail is arranged on one side of the axle tooling, a sliding seat is arranged on the electric guide rail, a mechanical arm is arranged on the sliding seat, and a measuring head and a measuring probe are arranged at the output end of the mechanical arm;

[0006] The measuring probe is provided with a probe bending measuring assembly around it to monitor the bending and tilting conditions of the measuring probe when it is subjected to force. The probe bending measuring assembly includes a power column installed around the measuring probe to surround the measuring probe, and a liquid storage column is provided inside the power column to accurately conduct the deformation of the measuring probe. A liquid hose is provided at the output end of the liquid storage column, and a central control box is provided at the output end of the liquid hose.

[0007] The central control box is provided with a power assist mechanism for reversely correcting the measuring probe of the probe bending measuring assembly;

[0008] The measuring head is provided with a marking mechanism which cooperates with the probe bending measuring assembly to spray liquid onto the surface of the trailer axle when the deformation of the measuring probe is measured.

[0009] Furthermore, the probe bending measurement assembly also includes an inclined pressure plate rotatably connected to the power column on one side of the liquid storage column, a sliding groove is opened on the inner wall of the power column, and the bottom corners of the inclined pressure plate are provided with a drawing rope fixedly connected to the bottom wall of the power column and having elastic force.

[0010] Furthermore, a semicircular tension wire is fixedly arranged at the center position of the bottom edge of the inclined pressure plate, both ends of the tension wire pass through the power column, and a tension wire 1 is fixedly arranged at the center position of the peak ridge of the tension wire.

[0011] Furthermore, a probe ring is fixedly provided at one end of the pull wire away from the tension wire, the probe ring is sleeved on the measuring probe, and the measuring probe and the probe ring match each other, and at the same time, the four pull wires are all straightened.

[0012] Furthermore, the central control box includes multiple button batteries in the upper space inside the central control box and four control switches in the lower space inside the central control box, and the four control switches correspond to the four tension wires one by one. The side walls of the four control switches are each provided with a water inlet chamber, and the water inlet chamber is connected to the liquid storage column through a liquid hose, and two conductive heads that do not contact each other are arranged inside the water inlet chamber.

[0013] Furthermore, the probe bending measurement assembly also includes four indicator lights installed on the side wall of the measuring head. The four indicator lights correspond one-to-one to the four groups of power columns, and the four indicator lights correspond to the four directions of inclination of the measuring probe respectively. At the same time, the four indicator lights are interconnected with four control switches through wires.

[0014] Furthermore, the power assist mechanism includes an electromagnet, a lifting plate is fixedly arranged at the bottom of the telescopic shaft of the electromagnet, four mutually symmetrical expansion columns are fixedly arranged on the lifting plate, and the four expansion columns are interconnected with the liquid-passing hose through a hose.

[0015] Furthermore, the four expansion columns are all wound with pull wires 2, and one end of the four pull wires 2 away from the expansion column is fixedly connected to the inclined pressure plate.

[0016] Furthermore, the marking mechanism includes a pressurizing box sleeved on the telescopic shaft of the electromagnet, the input end of the pressurizing box is connected to a liquid injection column through a pipeline, a pressurizing piston is slidably connected inside the liquid injection column, and the liquid injection column is fixedly connected to the measuring head.

[0017] Furthermore, a connecting hose is provided at the output end of the pressurizing box, a universal ball rotatably connected to the measuring head is provided at the output end of the connecting hose, a liquid spray head is provided below the universal ball, and the liquid spray head and the universal ball are connected to the pressurizing box through the connecting hose.

[0018] The beneficial effects of the present invention are:

[0019] The present invention uses the measuring probe to pull the tension wire in the probe bending measuring assembly in the opposite direction of the tilt, and instantly squeezes the liquid storage column, which serves as a trigger condition to control the indicator light to light up. The staff can judge whether the measuring probe has a fault according to the precise lighting points of the indicator lights at different positions, to prevent a large amount of error data from occurring when continuing to measure.

[0020] The power assist mechanism works to pull the measuring probe in the opposite direction, which is helpful to reduce the possibility of the measuring probe tilting and bending, and can also quickly reset the measuring probe when it is slightly bent and tilted, which is helpful to increase the service life of the measuring probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the measuring head of the present invention;

[0023] Figure 3 is a schematic diagram of the probe ring structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the central control box of the present invention;

[0025] Figure 5 It is a schematic diagram of the internal structure of the power column of the present invention;

[0026] Figure 6 The present invention Figure 5 The enlarged schematic diagram at A in the middle;

[0027] Figure 7 It is a schematic diagram of the structure of the water inlet chamber of the present invention;

[0028] Figure 8 It is a schematic diagram of the expansion column structure of the present invention.

[0029] In the figure: 1. measuring machine tool; 11. measuring table; 12. axle tooling; 13. electric guide rail; 14. sliding seat; 15. mechanical arm; 16. measuring head; 17. measuring probe; 2. probe bending measurement assembly; 21. power column; 22. tension wire; 23. pull wire one; 24. probe ring; 25. liquid hose; 26. central control box; 27. button battery; 28. liquid storage column; 29. ​​inclined pressure plate; 201. slide; 202. control switch; 203. water inlet chamber; 204. conductive head; 205. indicator light; 3. power assist mechanism; 31. electromagnet; 32. lifting plate; 33. expansion column; 34. pull wire two; 4. marking mechanism; 41. spray head; 42. universal ball; 43. connecting hose; 44. pressurizing box; 45. injection column; 46. pressurizing piston. DETAILED DESCRIPTION

[0030] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0031] like Figure 1-Figure 8 As shown, a trailer axle measuring device comprises: a measuring machine tool 1, the measuring machine tool 1 comprises a measuring table 11, an axle fixture 12 for fixing and clamping the trailer axle is installed on the measuring table 11, an electric guide rail 13 is arranged on one side of the axle fixture 12, a sliding seat 14 is arranged on the electric guide rail 13, a mechanical arm 15 is arranged on the sliding seat 14, and a measuring head 16 and a measuring probe 17 are arranged at the output end of the mechanical arm 15. In the production of trailer axles, each axle needs to be measured to ensure that various data of the axle are within a specified numerical range. First, the trailer axle to be measured is placed in the axle fixture 12 for clamping, and the axle fixture 12 drives the trailer axle to rotate or move according to the measurement requirements, and then the mechanical arm 15 is adjusted to make the measuring probe 17 touch the outer surface of the trailer axle, and the mechanical arm 15 is driven to move by the electric guide rail 13 and the trailer axle is driven to rotate or move by the axle fixture 12, so that the measuring probe 17 measures it;

[0032] The measuring probe 17 is surrounded by a probe bending measuring assembly 2 for monitoring the bending and tilting conditions of the measuring probe 17 when it is subjected to force. The probe bending measuring assembly 2 includes a power column 21 installed around the measuring probe 17 to surround the measuring probe 17. The power column 21 is provided with a liquid storage column 28 for accurately transmitting the deformation of the measuring probe 17. The output end of the liquid storage column 28 is provided with a liquid hose 25. The output end of the liquid hose 25 is provided with a central control box 26. When the measuring probe 17 lightly touches the surface of the trailer axle for relative displacement measurement, when there is machining residue on the surface of the trailer axle or a sudden increase in diameter, the measuring probe 17 The force applied to the measuring probe 17 increases or is blocked, so that the measuring probe 17 may bend or tilt, causing deviation in the measurement data. When the measuring probe 17 is bent or tilted by resistance, the measuring probe 17 pulls the tension wire 22 in the probe bending measuring assembly 2 in the opposite direction of the tilt, and instantly squeezes the liquid storage column 28, which serves as a trigger condition to control the indicator light 205 to light up. The staff can judge whether the measuring probe 17 has a fault according to the precise point where the indicator light 205 at different positions lights up, so as to prevent a large amount of error data from continuing to measure;

[0033] The central control box 26 is provided with a power assist mechanism 3 for the probe bending measuring assembly 2 to reversely correct the measuring probe 17, and the power assist mechanism 3 is controlled to work simultaneously under the above triggering conditions, so as to pull the measuring probe 17 in the opposite direction, which is beneficial to reduce the possibility of the measuring probe 17 being tilted and bent, and can also quickly reset the measuring probe 17 when it is slightly bent and tilted, which is beneficial to increase the service life of the measuring probe 17;

[0034] The measuring head 16 is provided with a marking mechanism 4 which cooperates with the probe bending measuring assembly 2 to spray liquid onto the surface of the trailer axle when the measuring probe 17 is deformed. At the same time, under the above triggering conditions, the marking mechanism 4 can also be controlled to work quickly, so that the marking mechanism 4 sprays colored liquid at the moment when the measuring probe 17 bends and tilts, so that the staff can accurately find which area of ​​the axle has a problem.

[0035] The probe bending measuring assembly 2 also includes an inclined pressure plate 29 rotatably connected to the power column 21 on one side of the liquid storage column 28. A slide groove 201 is provided on the inner wall of the power column 21, and the bottom corners of the inclined pressure plate 29 are provided with elastic drawing ropes fixedly connected to the bottom wall of the power column 21.

[0036] A semicircular tension wire 22 is fixedly provided at the center position of the bottom edge of the inclined pressure plate 29, and both ends of the tension wire 22 pass through the power column 21. A pull wire 23 is fixedly provided at the center position of the peak of the tension wire 22. When the measuring probe 17 is blocked by impurities on the surface of the axle, the measuring probe 17 will tilt. The tilt of the measuring probe 17 will pull the pull wire 23 in the opposite direction of the tilt, and the tension wire 22 is tilted by pulling the pull wire 23. The inclination of the tension wire 22 drives the inclined pressure plate 29 to rotate to squeeze the liquid storage column 28, so that the liquid in the liquid storage column 28 and the liquid hose 25 flows into the water inlet chamber 203.

[0037] A probe ring 24 is fixedly provided at one end of the pull wire 23 away from the tension wire 22. The probe ring 24 is sleeved on the measuring probe 17, and the measuring probe 17 and the probe ring 24 match each other. At the same time, the four pull wires 23 are all straightened. When all the four pull wires 23 are straightened, it represents that the measuring probe 17 is in a standard state. Once the measuring probe 17 is bent, the tension wire 22 in the opposite direction of the bend is pulled, indicating that there is a problem with the axle here.

[0038] The central control box 26 includes a plurality of button batteries 27 in the upper space inside the central control box 26 and four control switches 202 in the lower space inside the central control box 26, and the four control switches 202 correspond to the four tension wires 22 one by one. The side walls of the four control switches 202 are provided with water inlet chambers 203, and the water inlet chambers 203 are interconnected with the liquid storage column 28 through a liquid passing hose 25. Two conductive heads 204 that do not contact each other are arranged inside the water inlet chamber 203. When liquid enters the water inlet chamber 203 through the liquid passing hose 25, the liquid contacts the conductive heads 204 at the same time, thereby making the corresponding control switch 202 work, and then the corresponding indicator light 205 is controlled by the control switch 202 to work, which is conducive to the staff to find the problem more intuitively and quickly, and can also intuitively understand whether the measuring probe 17 after multiple uses has bending and tilting that are difficult to detect with the naked eye.

[0039] The probe bending measurement assembly 2 also includes four indicator lights 205 installed on the side wall of the measuring head 16. The four indicator lights 205 correspond one-to-one to the four groups of power columns 21, and the four indicator lights 205 correspond to the four directions in which the measuring probe 17 is tilted. At the same time, the four indicator lights 205 are interconnected with the four control switches 202 through wires. The direction in which the four indicator lights 205 light up indicates that the measuring probe 17 is tilted in this direction.

[0040] The power assist mechanism 3 includes an electromagnet 31, a lifting plate 32 is fixedly provided at the bottom of the telescopic shaft of the electromagnet 31, and four mutually symmetrical expansion columns 33 are fixedly provided on the lifting plate 32. The four expansion columns 33 are interconnected with the liquid hose 25 through a hose, and a part of the liquid in the liquid hose 25 flows into the expansion column 33 to expand it. The expansion of the expansion column 33 can tighten the pull wire 2 34. The expansion column 33 that has not expanded indicates that the measuring probe 17 does not need to apply pulling in this direction. The four control switches 202 are all connected to the electromagnet 31 through wires. When any control switch 202 is working, the electromagnet 31 can be controlled to work, thereby driving the lifting plate 32 to rise. The lifting plate 32 will only pull the tightened pull wire 2 34 when it rises, and the other pull wires 2 34 will not be affected by the pulling force of the rise due to relaxation.

[0041] Pull wires 2 34 are wound around the four expansion columns 33. One end of the four pull wires 2 34 away from the expansion columns 33 is fixedly connected to the inclined pressure plate 29. When the pull wires 2 34 are pulled, the inclined pressure plate 29 can be driven to rise along the slide groove 201, and the tension wire 22 can be driven to rise through the inclined pressure plate 29, thereby applying tension to the measuring probe 17, reducing the possibility of the measuring probe 17 tilting and bending, and can also quickly reset the measuring probe 17 when it is slightly bent and tilted, which is beneficial to increase the service life of the measuring probe 17.

[0042] The marking mechanism 4 includes a pressurizing box 44 mounted on the telescopic shaft of the electromagnet 31. The input end of the pressurizing box 44 is connected to a liquid injection column 45 through a pipeline. A pressurizing piston 46 is slidably connected inside the liquid injection column 45, and the liquid injection column 45 is fixedly connected to the measuring head 16. The staff can use a syringe to inject colored liquid into the liquid injection column 45 below the pressurizing piston 46, and the pressurizing box 44 is squeezed by the rising telescopic shaft of the electromagnet 31 to spray the liquid out from the liquid spray head 41.

[0043] A connecting hose 43 is provided at the output end of the pressurizing box 44, and a universal ball 42 rotatably connected to the measuring head 16 is provided at the output end of the connecting hose 43. A liquid spray head 41 is provided below the universal ball 42, and the liquid spray head 41 and the universal ball 42 are interconnected with the pressurizing box 44 through the connecting hose 43. The paint can be accurately sprayed on the surface of the axle, and the colored liquid is sprayed at the moment when the measuring probe 17 is bent and tilted, so that the staff can accurately find which area of ​​the axle has a problem.

[0044] When the measuring probe 17 is blocked by impurities on the surface of the axle, the measuring probe 17 will tilt. The tilt of the measuring probe 17 will pull the pull wire 23 in the opposite direction of the tilt, and the pull wire 22 will be pulled by the pull wire 23 to tilt. The tilt of the pull wire 22 drives the inclined pressure plate 29 to rotate and squeeze the liquid storage column 28, so that the liquid in the liquid storage column 28 and the liquid hose 25 flows into the water inlet chamber 203. The liquid contacts the conductive head 204 at the same time, so that the corresponding control switch 202 works, and then the corresponding indicator light 205 is controlled by the control switch 202 to work. The direction in which the four indicator lights 205 light up indicates that the measuring probe 17 is tilted in this direction.

[0045] A part of the liquid in the liquid hose 25 flows into the expansion column 33 to expand it. The expansion of the expansion column 33 can tighten the pull wire 2 34. The expansion column 33 that has not expanded indicates that the measuring probe 17 does not need to be pulled in this direction. The four control switches 202 are connected to the electromagnet 31 through wires. When any control switch 202 is working, the electromagnet 31 can be controlled to work, thereby driving the lifting plate 32 to rise. The lifting plate 32 will only pull the tightened pull wire 2 34 when it rises. The other pull wires 2 34 are not affected by the pulling force of the rise because they are relaxed, and can drive the inclined pressure plate 29 to rise along the slide 201. The inclined pressure plate 29 drives the tension wire 22 to rise, thereby applying tension to the measuring probe 17, reducing the possibility of the measuring probe 17 tilting and bending.

[0046] The staff can use a syringe to inject colored liquid into the lower part of the pressurizing piston 46 in the injection column 45, and squeeze the pressurizing box 44 through the rising telescopic shaft of the electromagnet 31, so that the liquid is sprayed out from the spray head 41. The output end of the pressurizing box 44 is provided with a connecting hose 43, and the output end of the connecting hose 43 is provided with a universal ball 42 rotatably connected to the measuring head 16, and a spray head 41 is provided below the universal ball 42, and the spray head 41 and the universal ball 42 are connected to the pressurizing box 44 through the connecting hose 43, so that the paint can be accurately sprayed on the surface of the axle.

[0047] The above describes an embodiment of the present embodiment, but the present embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present embodiment, ordinary technicians in this field can also make many forms, all of which are within the protection of the present embodiment.

Claims

1. A trailer axle measuring device, comprising: A measuring machine tool (1), the measuring machine tool (1) comprising a measuring table (11), an axle fixture (12) for fixing and clamping a trailer axle being mounted on the measuring table (11), an electric guide rail (13) being arranged on one side of the axle fixture (12), a sliding seat (14) being arranged on the electric guide rail (13), a mechanical arm (15) being arranged on the sliding seat (14), a measuring head (16) and a measuring probe (17) being arranged at the output end of the mechanical arm (15), and characterized in that the measuring probe (17) A probe bending measuring assembly (2) for monitoring the bending and tilting conditions of the measuring probe (17) when subjected to force is arranged around the measuring probe (17), the probe bending measuring assembly (2) comprising a power column (21) installed around the measuring probe (17) to surround the measuring probe (17), a liquid storage column (28) for accurately transmitting the deformation of the measuring probe (17) is arranged inside the power column (21), a liquid hose (25) is arranged at the output end of the liquid storage column (28), and a central control box (26) is arranged at the output end of the liquid hose (25); The central control box (26) is provided with a power assist mechanism (3) for the probe bending measuring assembly (2) to reversely correct the measuring probe (17); The measuring head (16) is provided with a marking mechanism (4) which cooperates with the probe bending measuring assembly (2) to spray liquid onto the surface of the trailer axle when the measuring probe (17) is deformed; The probe bending measuring assembly (2) further comprises an inclined pressure plate (29) rotatably connected to the power column (21) on one side of the liquid storage column (28); a slide groove (201) is provided on the inner wall of the power column (21); and elastic wire drawing ropes are provided at the bottom corners of the inclined pressure plate (29) and are fixedly connected to the bottom wall of the power column (21); A semicircular tension wire (22) is fixedly provided at the center of the bottom edge of the inclined pressure plate (29), both ends of the tension wire (22) pass through the power column (21), and a tension wire 1 (23) is fixedly provided at the center of the peak of the tension wire (22); A probe ring (24) is fixedly provided at one end of the pull wire (23) away from the tension wire (22), and the probe ring (24) is sleeved on the measuring probe (17), and the measuring probe (17) and the probe ring (24) match each other, and at the same time, the four pull wires (23) are all straightened; The central control box (26) comprises a plurality of button batteries (27) in the upper space inside the central control box (26) and four control switches (202) in the lower space inside the central control box (26), and the four control switches (202) correspond to the four tension wires (22) one by one, and the side walls of the four control switches (202) are each provided with a water inlet chamber (203), and the water inlet chamber (203) is interconnected with the liquid storage column (28) through a liquid hose (25), and two conductive heads (204) that do not contact each other are arranged inside the water inlet chamber (203); The probe bending measuring assembly (2) further comprises four indicator lights (205) mounted on the side wall of the measuring head (16), the four indicator lights (205) corresponding one to one with the four groups of power columns (21), and the four indicator lights (205) respectively corresponding to the four directions of inclination of the measuring probe (17), and the four indicator lights (205) are interconnected with the four control switches (202) via wires; The assist mechanism (3) comprises an electromagnet (31), a lifting plate (32) is fixedly arranged at the bottom of the telescopic shaft of the electromagnet (31), four mutually symmetrical expansion columns (33) are fixedly arranged on the lifting plate (32), and the four expansion columns (33) are connected to the liquid-passing hose (25) through a hose; Pull wires 2 (34) are wound around the four expansion columns (33), and one end of the four pull wires 2 (34) away from the expansion columns (33) is fixedly connected to the inclined pressure plate (29).

2. The trailer axle measuring device according to claim 1, characterized in that: The marking mechanism (4) comprises a pressurizing box (44) sleeved on the telescopic shaft of the electromagnet (31), the input end of the pressurizing box (44) being connected to a liquid injection column (45) via a pipeline, a pressurizing piston (46) being slidably connected inside the liquid injection column (45), and the liquid injection column (45) being fixedly connected to the measuring head (16).

3. The trailer axle measuring device according to claim 2, characterized in that: The output end of the pressurizing box (44) is provided with a connecting hose (43), and the output end of the connecting hose (43) is provided with a universal ball (42) rotatably connected to the measuring head (16), and a liquid spray head (41) is provided below the universal ball (42), and the liquid spray head (41) and the universal ball (42) are connected to the pressurizing box (44) through the connecting hose (43).

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