A cylindricality detection device for mechanical shaft parts

Abstract

The present invention discloses a device for detecting the cylindricity of mechanical shaft parts, comprising a detection body, a unit for controlling a detection structure and a space for assembling a shaft body clamp; the shaft body clamp is connected to the upper surface of the detection body by bolts and is used for clamping and fixing one end of the shaft body; the detection structure is connected to the upper surface of the detection body by bolts and is located on the right side of the shaft body clamp; the present invention can effectively remove iron filings, dust and other debris on the shaft surface in terms of cleaning and lubrication through the arrangement of the detection structure, reduce the friction coefficient between the probe and the shaft, and avoid wear on the probe, and can use hydraulic pressure to adjust the detection structure at different height positions, greatly shortening the time required for adjustment during detection, improving the linkage and reliability of detection, and at the same time, assisting the cylindricity detection part to perform comprehensive detection from top to bottom at different positions of the mechanical shaft, providing a strong guarantee for obtaining high-quality detection data.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical detection equipment, and in particular to a cylindricity detection device for mechanical shaft parts. Background Art

[0002] The cylindricality detection device for mechanical shaft parts is mainly composed of a measuring platform, a rotary mechanism, a displacement sensor, a data acquisition system, a computer and analysis software, and a clamping and positioning device. The measuring platform provides a stable horizontal foundation. The rotary mechanism contains a high-precision spindle and a drive motor to ensure that the shaft parts rotate at a uniform and stable speed. The displacement sensor (such as laser, inductive or capacitive) is arranged radially to measure the distance change. The data acquisition system collects the conversion signal. The computer and analysis software calculate the cylindricality error based on a specific algorithm and generate a visual report. The detection principle is to fix the shaft parts on the rotating spindle, and the sensor measures the distance during rotation. The data is processed to obtain the cylindricality result. The device has the advantages of high precision, non-contact measurement, high degree of automation, data visualization and analysis, and is widely used in many fields. It is of great significance to ensure the processing quality and product performance of shaft parts.

[0003] In the current field of cylindricity detection of mechanical shaft parts, when the cylindricity of the mechanical shaft is detected, iron filings, dust and other debris are easily attached to the surface of the mechanical shaft during processing, transportation or storage. When the detection operation is carried out, these impurities still remain on the surface of the shaft. When the shaft with impurities comes into contact with a high-precision probe, the iron filings and other hard debris will cause serious wear to the probe. In the long run, the measurement accuracy of the probe will inevitably be greatly affected, making it impossible to accurately obtain the distance change data from the surface of the shaft part to the sensor probe, which ultimately leads to a serious decline in detection accuracy and makes it difficult to meet the stringent requirements of high-precision mechanical shaft parts detection.

[0004] Therefore, a cylindricity detection device for mechanical shaft parts is proposed. Summary of the invention

[0005] The object of the present invention is to provide a device for detecting the cylindricity of mechanical shaft parts, so as to solve the problem that the detection head of the device for detecting the cylindricity of mechanical shaft parts proposed in the above-mentioned background technology is easily worn out by foreign objects.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A cylindricality detection device for mechanical shaft parts, comprising a detection body, a unit for controlling the detection structure and a space for assembling a shaft fixture;

[0007] The shaft body fixture is connected to the upper surface of the detection body by bolts and is used to clamp and fix one end of the shaft body;

[0008] The detection structure is connected to the upper surface of the detection body by bolts and is located on the right side of the shaft fixture;

[0009] Wherein, the detection structure includes a limiting ring, which is arranged directly above the shaft body clamp, and a C-shaped liquid groove is opened along the path at the upper part of the interior, a push plate of the same shape is sealed and slidably arranged at the lower part of the interior of the liquid groove, and an isolation stack is fixedly arranged on the upper surface of the push plate on the opposite side of the C-port, and the interior of the liquid groove is separated by the isolation stack, and at least two return springs are fixed on the lower surface of the push plate along the axial ring array, and two push rods are integrally arranged on the surface of the push plate between the return springs, wherein the lower end of the push plate is fixed in the channel opened in the limiting ring, and the push rod is seal-slidably inserted into the vertical path of the push liquid channel, and the input end of the push liquid channel is connected to the pumping hole opened in the fixed arm. The suction holes are interconnected, the fixed arm is integrally arranged on the inner ring surface of the limiting ring, and a one-way valve is arranged at the interconnected position of the fixed arm and the pushing fluid channel, and a redirecting piston is slidably arranged inside the suction hole of the fixed arm, and the piston end of the redirecting piston is provided with a through hole connected to the inside of the liquid tank, and an anti-reverse one-way valve is arranged inside the through hole, and the redirecting piston is fixed to the upward transmission block located at the end of the fixed arm after extending through the suction hole of the fixed arm at the opposite end of the piston, and a guide pipe is arranged at the position where the pushing fluid channel is located from the upper surface of the limiting ring through the fixed arm to the inside of the upward transmission block, and a nozzle for spraying oil and spray to the surface of the mechanical shaft is fixedly arranged at the output end of the guide pipe, and the upward transmission block sliding device The gear ring is placed inside the ring box, and the ring box is fixed at the center position of the limiting ring by a fixed arm. The lower surface of the upward transmission block is provided with an inclined slide groove, and the slide groove is engaged with the slide groove to slide with the downward transmission block which is also slidably arranged inside the limiting ring. The downward transmission block is provided with a row of teeth on the side facing the axis, and the gear ring arranged at the axis position of the ring box is rotated by the row of teeth to perform mutual meshing transmission. A moving rod is provided at the center position inside the downward transmission block, and one of the moving rods is set as a screw rod, and one end of the screw rod is connected to the shaft of the motor through a coupling. The motor is connected to the bearing seat arranged on the side of the ring box by bolts. The A slide groove for dragging the sliding kit is provided inside the upward transmission block, and the cylindricity detection part is pulled through the slide groove and the sliding kit fixed on the surface of the cylindricity detection part probe. The cylindricity detection part is fixed to the output end of the reset push rod through a connecting part, and the reset push rod is inserted and fixed inside the mounting hole provided in the lifting block. The lifting block is fixed to the lifting piston slidably set inside the lifting box through the slide groove on the surface of the lifting box through a double support plate. A hydraulic spring is fixed at the lower end of the lifting piston inside the lifting box. The lifting box is provided with an input interface for inward infusion above the channel where the lifting piston is located, and is connected to two output interfaces respectively through the cooperation of the input interface and the pipeline.

[0010] Preferably, a cleaning input interface and an oil input interface are symmetrically arranged on the upper surface of the limiting ring along the center of the circle, and both the cleaning input interface and the oil input interface are connected to the supply structure inside the detection body through pipelines.

[0011] Preferably, the push rods are symmetrically distributed along the axis and are located on opposite sides of the C-shaped notch. The push fluid channel is an S-shaped channel and is opened on the same radius as the push rod inside the limiting ring. An output interface with an anti-reverse function is provided at the output port of the push fluid channel.

[0012] Preferably, three upward transmission blocks are arranged in an annular array along the axis, and two of them are fixed to the redirecting piston, and the upward transmission block on the same side as the C-shaped notch is not fixed to the redirecting piston.

[0013] Preferably, the input end of the guide tube is connected to the interior of the liquid tank, the tube body portion of the guide tube passing through the fixed arm is fixed to the fixed arm, the tube body portion of the guide tube bent and extended from the fixed arm to the interior of the upward transmission block is arranged as a movable telescopic tube body, and the output end of the guide tube is fixedly arranged at the clamping end of the upward transmission block, and is exposed but does not protrude from the clamping surface of the upward transmission block.

[0014] Preferably, the rear side of the lifting box is provided with an interface for liquid output, and the interface is connected to the circulation pump inside the detection body through a pipeline, the probe end of the cylindricity detection part is flush with the clamping surface of the upward transmission block, and the probe can always be in active contact with the surface of the machine shaft after being pulled.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention sets a detection structure. Due to the different radii of the mechanical shaft, when the motor drives the downward transmission block, it will move at different distances, and then measure the inverse proportion of the shaft radius with the displacement, and then extract the specified amount of liquid stored in the liquid tank with the displacement, so as to achieve precise control of the spraying liquid according to the shaft radius. After suction, the motor drives the downward transmission block and the pushing force of the redirecting piston to reset, so that the extracted liquid pushes the liquid retained in the liquid tank upward along the specified path, so that the liquid in the liquid tank is sprayed from the nozzle to the surface of the shaft, and the surface of the mechanical shaft is cleaned, which can effectively remove iron filings, dust and other debris on the shaft surface to avoid wear on the probe. This not only prolongs the service life of the probe, reduces the replacement frequency and detection cost, but also ensures the long-term stability of the probe measurement accuracy, ensures the accuracy and reliability of the detection results, and provides a strong guarantee for the quality control of mechanical shaft parts.

[0017] 2. The present invention can evenly spray a layer of lubricating protective oil on the surface of the shaft body after spraying the cleaning liquid on the surface of the shaft body through the setting of the detection structure, so that a protective film can be formed on the surface of the shaft body, which can not only reduce the friction coefficient between the probe and the surface of the shaft body and significantly reduce the wear of the probe, but also the shaft body after detection can be directly packaged and sealed without the need for subsequent oiling protection operations, which reduces the production process of mechanical shafts to a certain extent, reduces the workload of staff, and is more conducive to the efficient production of mechanical shafts;

[0018] 3. The present invention can utilize the hydraulic effect of the output cleaning liquid and lubricating protective oil to perform hydraulic pushing of the lifting piston through the setting of the lifting box, input interface, lifting piston, hydraulic spring and lifting block, so that the lifting block can be automatically adjusted at a random height position according to the input liquid volume. Compared with traditional detection devices, the time required for adjustment during detection is greatly shortened, and the linkage and reliability of detection are improved. At the same time, it can assist the cylindricity detection part to perform axial detection from top to bottom at different positions of the mechanical shaft, providing a strong guarantee for obtaining high-quality detection data, helping to timely discover slight deviations in the cylindricity of the mechanical shaft, and improving the level of product quality control. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall structural view of the present invention;

[0020] Figure 2 It is a schematic diagram of the detection structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the internal structure of the limiting ring and the ring box after the cross section of the present invention;

[0022] Figure 4 It is a disassembled diagram of the internal structure of the limiting ring and the ring box of the present invention;

[0023] Figure 5 It is a cross-sectional view of the lifting box of the present invention and its internal structure.

[0024] In the figure:

[0025] 1. Detection of the body;

[0026] 2. Shaft fixture;

[0027] 3. Detection structure; 31. Limiting ring; 311. Cleaning input interface; 312. Oil input interface; 313. Fixed arm; 3131. Guide tube; 3132. Nozzle; 3133. Redirection piston; 314. Liquid tank; 315. Push plate; 3151. Push rod; 3152. Reset spring; 3153. Isolation lamination; 316. Push liquid channel; 317. Output interface; 32. Ring box; 321. Gear ring; 322. Upward transmission block; 323. Downward transmission block; 324. Moving rod; 325. Motor; 33. Lifting box; 331. Input interface; 332. Lifting piston; 333. Hydraulic spring; 334. Lifting block; 335. Reset push rod; 336. Cylindricity detection part; 3361. Sliding kit. DETAILED DESCRIPTION

[0028] 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 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 are within the scope of protection of the present invention.

[0029] See also Figures 1 to 5 The present invention provides a technical solution for a cylindricality detection device for mechanical shaft parts:

[0030] A cylindricality detection device for mechanical shaft parts, comprising a detection body 1, a unit for controlling a detection structure 3 and a space for assembling a shaft fixture 2;

[0031] The shaft clamp 2 is connected to the upper surface of the detection body 1 by bolts and is used to clamp and fix one end of the shaft;

[0032] The detection structure 3 is connected to the upper surface of the detection body 1 by bolts and is located on the right side of the shaft fixture 2;

[0033] The detection structure 3 includes a limiting ring 31, which is arranged directly above the shaft body clamp 2, and a C-shaped liquid tank 314 is opened along the path above the inside, and a cleaning input interface 311 and an oil input interface 312 are symmetrically arranged on the upper surface of the limiting ring 31 along the center of the circle, and the cleaning input interface 311 and the oil input interface 312 are connected to the supply structure inside the detection body 1 through pipelines, and a push plate 315 of the same shape is sealed and slidably arranged at the lower part of the liquid tank 314, and a stackable isolation laminate 3153 is fixedly arranged on the upper surface of the push plate 315 on the opposite side of the C port, and the inside of the liquid tank 314 is separated by the isolation laminate 3153, and at least two complex The push plate 315 is provided with two push rods 3151 on the surface between the reset springs 3152, wherein the lower end of the push plate 315 is fixed in the channel opened inside the limiting ring 31, and the sliding limiting and resetting of the limiting ring 31 are performed thereby, the push rods 3151 are symmetrically distributed along the axis, and are on the opposite side of the C-shaped notch, and the push rods 3151 are sealed and slidably inserted into the vertical path of the push fluid channel 316, the push fluid channel 316 is an S-shaped channel, and is opened on the same radius as the push rods 3151 inside the limiting ring 31, and an output interface 317 with an anti-reverse function is provided at the output port of the push fluid channel 316, the input end of the push fluid channel 316 is communicated with the suction hole opened inside the fixed arm 313, and the fixed The arm 313 is integrally arranged on the inner ring surface of the limiting ring 31, and a one-way valve is arranged at the mutual communication position between the fixed arm 313 and the pushing fluid channel 316, and a redirecting piston 3133 is slidably arranged inside the suction hole of the fixed arm 313, and a through hole communicating with the interior of the liquid tank 314 is opened at the piston end of the redirecting piston 3133, and a one-way valve for preventing reverse movement is arranged inside the through hole, and the redirecting piston 3133 is fixed to the upward transmission block 322 located at the end of the fixed arm 313 after extending out of the suction hole of the fixed arm 313 at the opposite end of the piston, and there are three upward transmission blocks 322 arranged in an annular array along the axis, and two of them are fixed to the redirecting piston 3133, and the upward transmission block 322 on the same side as the C-shaped notch is not fixed to the redirecting piston 3133. A guide pipe 3131 is arranged at the position where the push liquid channel 316 is located, from the upper surface of the limiting ring 31 through the fixed arm 313 to the interior of the upward transmission block 322, wherein the input end of the guide pipe 3131 is communicated with the interior of the liquid tank 314, the pipe body portion of the guide pipe 3131 passing through the fixed arm 313 is fixed to the fixed arm 313, the pipe body portion of the guide pipe 3131 bent and extended from the fixed arm 313 to the interior of the upward transmission block 322 is arranged as a movable telescopic pipe body, the output end of the guide pipe 3131 is fixedly arranged at the clamping end of the upward transmission block 322, and is exposed but not protruding from the clamping surface of the upward transmission block 322, and a nozzle 3132 for spraying oil and spraying mist to the surface of the mechanical shaft is fixedly arranged at the output end of the guide pipe 3131,The upward transmission block 322 is slidably arranged inside the ring box 32, and the ring box 32 is fixedly arranged at the center position of the limiting ring 31 through the fixed arm 313. The lower surface of the upward transmission block 322 is provided with an inclined slide groove, and the slide groove is engaged with the downward transmission block 323 which is also slidably arranged inside the limiting ring 31 for sliding transmission. The downward transmission block 323 is provided with a row of teeth on the side facing the axis, and the gear ring 321 arranged at the axis position of the ring box 32 is rotated by the row of teeth to perform mutual meshing transmission. The central position of the downward transmission block 323 is provided with a moving rod 324, and one of the moving rods 324 is set as a screw rod, and one end of the screw rod is connected to the shaft of the motor 325 through a coupling, and the motor 325 is connected to the bearing seat arranged on the side of the ring box 32 by bolts.

[0034] When working, first fix one end of the mechanical shaft on the detection body 1 with the shaft clamp 2, inject cleaning liquid and lubricating protection oil into the liquid tank 314 through the cleaning input interface 311 and the oil input interface 312, and fill the space above the push plate 315 with the cleaning liquid. Start the motor 325 to drive the screw rod to move the downward transmission block 323, and realize the synchronous movement of the three downward transmission blocks 323 through the gear ring 321, and then drive the upward transmission block 322 to approach the mechanical shaft. The two upward transmission blocks 322 on the left drag the guide pipe 3131, and the upward transmission blocks at the notch are moved. The transmission block 322 makes the cylindricity detection part 336 contact the mechanical shaft, the shaft body clamp 2 drives the shaft to rotate, and the motor 325 rotates in the opposite direction to reset the upward transmission block 322, pushing the cleaning liquid and the lubricating protection oil into the push channel 316, pushing the push rod 3151 and the push plate 315, so that the remaining liquid is sprayed out from the nozzle 3132 through the guide tube 3131, cleaning and lubricating the mechanical shaft. At this time, the cylindricity detection part 336 maintains contact detection, data is uploaded, and after the shaft rotates at least one circle, the reset push rod 335 pulls the cylindricity detection part 336 to reset.

[0035] In summary, through the setting of the detection structure, due to the different radii of the mechanical shaft, when the motor 325 drives the downward transmission block 323, it will move at different distances, and then measure the inverse proportion of the shaft radius with the displacement, and then use the displacement to extract the specified amount of liquid stored in the liquid tank 314, so as to achieve precise control of the spraying liquid according to the shaft radius. After suction, the motor 325 drives the downward transmission block 323 and the rerouting piston 3133 to reset, so that the extracted liquid pushes the liquid retained in the liquid tank 314 upward along the specified path, so that the liquid in the liquid tank 314 is sprayed from the nozzle 3132 to the surface of the shaft, and the surface of the mechanical shaft is cleaned, which can effectively remove Remove iron filings, dust and other debris from the shaft surface to prevent them from causing wear to the probe. This not only extends the service life of the probe, reduces the replacement frequency and detection cost, but also ensures the long-term stability of the probe's measurement accuracy, ensures the accuracy and reliability of the detection results, and provides strong protection for the quality control of mechanical shaft parts. In addition, by evenly spraying a layer of lubricating protective oil on the surface of the shaft body, a protective film can be formed on the surface of the shaft body, which not only reduces the friction coefficient between the probe and the shaft surface, and significantly reduces the wear on the probe, but also the shaft body after detection can be directly packaged and sealed, without the need for subsequent oiling protection operations, which reduces the production process of mechanical shafts to a certain extent, reduces the workload of staff, and is more conducive to the efficient production of mechanical shafts.

[0036] As an embodiment of the present invention, Figure 5 As shown, a Chinese-character shaped groove for dragging the sliding kit 3361 is provided inside the upward transmission block 322 on the notch side of the limiting ring 31, and the cylindricity detection member 336 is pulled through the groove and the sliding kit 3361 sleeved and fixed on the probe surface of the cylindricity detection member 336. The cylindricity detection member 336 is fixed to the output end of the reset push rod 335 through a connecting member. The reset push rod 335 is inserted and fixed inside the mounting hole opened in the lifting block 334. The lifting block 334 is fixed to the lifting piston 332 slidably set inside the lifting box 33 through the groove on the surface of the lifting box 33 through the double support plates. At the lower end of the lifting piston 332 inside the lifting box 33 A hydraulic spring 333 is fixedly arranged, and the sliding limitation and resetting inside the lifting box 33 are performed by the hydraulic spring 333. The lifting box 33 is provided with an input interface 331 for inward infusion above the channel where the lifting piston 332 is located, and is connected with two output interfaces 317 respectively through the cooperation of the input interface 331 and the pipeline. The rear side of the lifting box 33 is provided with an interface for liquid output, and the interface is connected to the circulation pump inside the detection body 1 through the pipeline. The probe end of the cylindricity detection part 336 is flush with the clamping surface of the upward transmission block 322, and the probe can always be in active contact with the surface of the machine shaft after being pulled. The lifting block 334 is fixed to the limiting ring 31 through a connecting arm.

[0037] During operation, the cleaning liquid and lubricating protective oil after passing through the pushing liquid channel 316 and pushing the push rod 3151 are output from the output interface 317, and enter the channel where the lifting piston 332 is located from the input interface 331 through the pipeline, pushing the lifting piston 332 to slide down along the pipe wall of the lifting box 33, driving the lifting block 334 to move downward, and then causing the limiting ring 31 and the reset push rod 335 to move downward.

[0038] To sum up, through the setting of the lifting box 33, the input interface 331, the lifting piston 332, the hydraulic spring 333 and the lifting block 334, the hydraulic effect of the output cleaning liquid and lubricating protection oil can be utilized to perform the hydraulic push of the lifting piston 332, so that it can automatically adjust the lifting block 334 at a random height position according to the input liquid volume. Compared with the traditional detection device, the time required for adjustment during detection is greatly shortened, and the linkage and reliability between the detection components are improved. At the same time, it can assist the cylindricity detection part 336 to perform axial detection from top to bottom at different positions of the mechanical shaft, which provides a strong guarantee for obtaining high-quality detection data, helps to timely discover slight deviations in the cylindricity of the mechanical shaft, and improves the level of product quality control.

[0039] Working principle: When working, first fix one end of the mechanical shaft part on the detection body 1 through the shaft clamp 2 to ensure that the part will not be displaced during the detection process, and then inject cleaning liquid (such as cleaning oil, etc.) and lubricating protective oil into the liquid tank 314 separated by the isolation stack 3153 through the supply structure inside the detection body 1 through the cleaning input interface 311 and the oil input interface 312. After the cleaning liquid and the lubricating protective oil enter the liquid tank 314, since the push plate 315 slides in the liquid tank 314 in a sealed manner and the initial position is at the bottom, the cleaning liquid will fill the space above the push plate 315, and then start the motor 325, the motor 325 will drive the screw connected to it to rotate, and the rotation of the screw will drive the downward transmission block 323 to move along the slide groove inside the ring box 32 The moving downward transmission block 323 will also perform meshing transmission with the gear ring 321 through the side gear pair, and the rotating gear ring 321 will perform meshing transmission with the other two downward transmission blocks 323, thereby realizing the simultaneous movement of the three downward transmission blocks 323, and the moving downward transmission block 323 will transmit the upward transmission block 322 through the inclined slide groove on the upper surface and the slide groove engaged with the bottom surface of the upward transmission block 322, thereby realizing the gradual approach of the three upward transmission blocks 322 to the mechanical shaft until the upward transmission block 322 contacts the mechanical shaft, and during the movement of the three upward transmission blocks 322, the two upward transmission blocks 322 on the left will drag and stretch the guide pipe 3131 to move synchronously, and at the same time, the upward transmission block 322 will drag The redirecting piston 3133 moves along the inner wall of the fixed arm 313, and during the movement, the cleaning liquid and lubricating protective oil input into the liquid tank 314 are sucked into the interior of the fixed arm 313. The upward transmission block 322 located at the notch position will cooperate with the sliding kit 3361 to drag the cylindricality detection part 336 to contact the surface of the mechanical shaft, and the output rod of the reset push rod 335 will be passively stretched. Then, the shaft clamp 2 will, under the control of the detection body 1, drive the clamped and positioned mechanical shaft to rotate at a uniform speed. At the same time, the motor 325 will reversely drive the lead screw corresponding to the moving rod 324, so that the lead screw reversely spirally drives the downward transmission block 323, and cooperates with the gear ring 321 to reset the upward transmission block 322. The rerouting piston 3133 will be pushed to move along the inner wall of the fixed arm 313 to reset during the resetting process, and the cleaning liquid and lubricating protection oil drawn into the fixed arm 313 will be pushed into the interior of the pushing liquid channel 316 during the resetting process. The cleaning liquid and lubricating protection oil entering the pushing liquid channel 316 will flow to the lower end of the push rod 3151 along the path of the pushing liquid channel 316 under the continuous pushing of the rerouting piston 3133, and push the push rod 3151 and the push plate 315 upward to move upward. The upward push plate 315 will push the remaining liquid stored in the liquid tank 314 (the larger the radius of the mechanical shaft, the shorter the distance moved by the upward transmission block 322, the less liquid is sucked, and the more oil is left, and vice versa. This can avoid the waste of cleaning liquid and lubricating protection oil,At the same time, it will not be retained too much on the surface of the mechanical shaft), allowing the cleaning liquid and lubricating protection oil to enter the interior of the guide tube 3131, and flow along the guide tube 3131 to the position of the nozzle 3132, and finally sprayed to the surface of the mechanical shaft rotating at a uniform speed through the nozzle 3132, so as to achieve cleaning and oil lubrication of the surface of the mechanical shaft. At this time, the stretched guide tube 3131 will return to its original state, and the sliding kit 3361 on the probe surface of the cylindricity detection part 336 will not be reset because it is not pushed by the reset upward transmission block 322 (initially, the sliding kit 3361 is located in the middle-shaped groove of the upward transmission block 322 with a specified length in the moving direction of the sliding kit 3361). Therefore, the cylindricity detection part 336 will not be reset, and maintain contact with the surface of the mechanical shaft, perform detection of the mechanical shaft after cleaning and oil injection, and upload the detected cylindricity data to the control end. At this time , the mechanical shaft rotates at least one circle, and then the reset push rod 335 will actively pull the cylindricality detection part 336 to move and reset to the initial state, and the cleaning liquid and lubricating protection oil that push the ejector 3151 through the ejection fluid channel 316 will be output from the output interface 317 after the ejector 3151 is pushed, and then input into the channel where the lifting piston 332 is located through the pipeline input interface 331, and push the lifting piston 332 downward to slide along the tube wall of the lifting box 33, and the downwardly moving lifting piston 332 will drive the lifting block 334 connected thereto to move downward while compressing the hydraulic spring 333, and then the lifting block 334 will drive the limiting ring 31 and the reset push rod 335 to move downward, and then the above operation steps can be performed again until the movement detection reaches the lower end of the mechanical shaft, and the cylindricality detection of the mechanical shaft can be completed, and the detection data can be viewed on the control end. ,

[0040] It should be noted that the cleaning liquid may be cleaning oil or other more suitable cleaning liquids, depending on the specific circumstances; the angle between the upward transmission block 322 and the downward transmission block 323 on the left and the upward transmission block 322 and the downward transmission block 323 at the C-shaped notch position may be redesigned and adjusted as needed to achieve better cleaning and oiling effects.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cylindricality detection device for mechanical shaft parts, comprising a detection body (1), a unit for controlling a detection structure (3), and a space for assembling a shaft fixture (2); The shaft clamp (2) is connected to the upper surface of the detection body (1) by means of bolts and is used to clamp and fix one end of the shaft, and is characterized in that: The detection structure (3) is connected to the upper surface of the detection body (1) by means of bolts and is located on the right side of the shaft fixture (2); The detection structure (3) comprises a limiting ring (31), the limiting ring (31) is arranged directly above the shaft body clamp (2), and a C-shaped liquid groove (314) is opened along a path at the upper part of the interior, a push plate (315) of the same shape is sealed and slidably arranged at the lower part of the interior of the liquid groove (314), an isolation laminate (3153) is fixedly arranged on the upper surface of the push plate (315) on the opposite side of the C port, and the interior of the liquid groove (314) is separated by the isolation laminate (3153), at least two return springs (3152) are fixedly arranged on the lower surface of the push plate (315) along the axis ring array, and two push rods (315) are integrally arranged on the surface of the push plate (315) between the return springs (3152). 1), wherein the lower end of the push plate (315) is fixed in a channel opened inside the limiting ring (31), the push rod (3151) is sealingly slidably inserted into the vertical path of the push fluid channel (316), the input end of the push fluid channel (316) is interconnected with the suction channel opened inside the fixed arm (313), the fixed arm (313) is integrally arranged on the inner ring surface of the limiting ring (31), and a one-way valve is arranged at the interconnected position between the fixed arm (313) and the push fluid channel (316), and a redirecting piston (3133) is slidably arranged inside the suction channel of the fixed arm (313), the piston end of the redirecting piston (3133) is provided with a through hole connected to the inside of the liquid tank (314), and the inside of the through hole is provided with an anti-reverse valve. A one-way valve, wherein the redirecting piston (3133) is fixed to an upward transmission block (322) located at the end of the fixed arm (313) after extending from the end opposite to the piston and passing through the suction hole of the fixed arm (313), a guide pipe (3131) is arranged at the position where the push fluid channel (316) is located from the upper surface of the limiting ring (31) through the fixed arm (313) to the inside of the upward transmission block (322), and a nozzle (3132) for spraying oil and mist onto the surface of the mechanical shaft is fixedly arranged at the output end of the guide pipe (3131), the upward transmission block (322) is slidably arranged inside the ring box (32), and the ring box (32) is fixedly arranged at the center of the limiting ring (31) through the fixed arm (313), and the upward transmission block (322) is slidably arranged inside the ring box (32), and the ring box (32) is fixedly arranged at the center of the limiting ring (31) through the fixed arm (313), and the upward transmission block (322) is fixedly arranged at the center of the limiting ring (31) through the fixed arm (313). The lower surface of the transmission block (322) is provided with an inclined sliding groove, and the sliding grooves are engaged with each other to perform sliding transmission with a downward transmission block (323) which is also slidably arranged inside the limiting ring (31). The downward transmission block (323) is provided with a row of teeth on the side facing the axis, and the row of teeth cooperates with the gear ring (321) which is rotated at the axis position of the ring box (32) to perform mutual meshing transmission. A moving rod (324) is provided at the center position inside the downward transmission block (323), and one of the moving rods (324) is configured as a screw rod, and one end of the screw rod is connected to the shaft of a motor (325) through a coupling. The motor (325) is connected to a bearing seat arranged on the side of the ring box (32) by bolts.A slide groove for pulling a sliding kit (3361) is provided inside the upward transmission block (322) on the notch side of the limiting ring (31), and the cylindricity detection member (336) is pulled through the slide groove and the sliding kit (3361) sleeved and fixed on the probe surface of the cylindricity detection member (336). The cylindricity detection member (336) is fixed to the output end of the reset push rod (335) through a connecting member. The reset push rod (335) is inserted and fixed inside the mounting hole provided in the lifting block (334). The lifting block (334) is fixed to a lifting piston (332) slidably arranged inside the lifting box (33) through a double support plate passing through a slide groove on the surface of the lifting box (33); a hydraulic spring (333) is fixedly arranged at the lower end of the lifting piston (332) inside the lifting box (33); an input interface (331) for infusion is arranged above the hole where the lifting piston (332) is located in the lifting box (33), and the input interface (331) and the pipeline are respectively connected to the two output interfaces (317); The push rods (3151) are symmetrically distributed along the axis and are located on opposite sides of the C-shaped notch. The push fluid channel (316) is an S-shaped channel and is opened inside the limiting ring (31) on the same radius as the push rod (3151). An output interface (317) with an anti-reverse function is provided at the output port of the push fluid channel (316).

2. A cylindricity detection device for mechanical shaft parts according to claim 1, characterized in that: A cleaning input interface (311) and an oil input interface (312) are symmetrically arranged on the upper surface of the limiting ring (31) along the center of the circle, and the cleaning input interface (311) and the oil input interface (312) are both connected to a supply structure inside the detection body (1) through pipelines.

3. The cylindricality detection device for mechanical shaft parts according to claim 1 is characterized in that: Three upward transmission blocks (322) are arranged in an annular array along the axis, two of which are fixed to the redirecting piston (3133), and the upward transmission block (322) on the same side as the C-shaped notch is not fixed to the redirecting piston (3133).

4. The cylindricality detection device for mechanical shaft parts according to claim 1 is characterized in that: The input end of the guide tube (3131) is in communication with the interior of the liquid tank (314); the tube body portion of the guide tube (3131) passing through the fixed arm (313) is fixed to the fixed arm (313); the tube body portion of the guide tube (3131) extending from the fixed arm (313) to the interior of the upward transmission block (322) is arranged as a movable telescopic tube body; the output end of the guide tube (3131) is fixedly arranged at the clamping end of the upward transmission block (322) and is exposed but does not protrude from the clamping surface of the upward transmission block (322).

5. The cylindricity detection device for mechanical shaft parts according to claim 1, characterized in that: The rear side of the lifting box (33) is provided with an interface for liquid output, and the interface is connected to a circulation pump inside the detection body (1) through a pipeline. The probe end of the cylindricity detection member (336) is flush with the clamping surface of the upward transmission block (322), and the probe can always be in active contact with the surface of the machine shaft after being pulled.

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