Heat treatment processing gear hardness rapid measuring device

Abstract

The present application relates to the technical fields of gear hardness measurement, and the heat treatment processing gear hardness rapid measuring device, including frame, the frame top is provided with plate chain conveyor, the link plate of plate chain conveyor is provided with several automatic clamping loose mechanisms at equal intervals, the middle part of the rear side of plate chain conveyor is fixedly installed with No. 1 fixed plate, the rear side of No. 1 fixed plate is fixedly installed with fixed frame, the top of fixed frame is fixedly installed with No. 1 hydraulic rod, the bottom of the output end of No. 1 hydraulic rod is movably penetrated through the rear fixed installation of fixed frame and is fixedly installed with L-shaped plate, the present application is used in cooperation with automatic clamping loose mechanism and limiting stretching mechanism, realizes the automatic clamping fixation and automatic loosening of gear in the process of conveying, realizes the detection of multiple gears through multiple multi-point measuring components on multiple-point measuring mechanism, realizes the multi-point detection of single gear, and the detection error is smaller, and simultaneously realizes the simultaneous detection of multiple gears, and the detection efficiency is high.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of gear hardness testing, and particularly relates to a rapid hardness measuring device for heat-treated gears. BACKGROUND

[0002] Gear hardness testing is a key link for evaluating gear material performance and heat treatment quality, which is directly related to gear wear resistance, fatigue resistance and service life. The testing is usually carried out on the tooth surface and tooth root of the gear, and there is a difference in the hardness testing of the heat-treated gear. The strength of the tooth top, tooth surface and tooth root of the heat-treated gear needs to be tested at the same time, while the strength of the ordinary gear only needs to be tested on the tooth surface. The gear strength is usually detected by using ultrasonic hardness tester, Rockwell hardness tester and other measuring equipment. The existing equipment has the following problems in measurement:

[0003] 1. When a large number of gears are produced in a factory, the hardness of a large number of heat-treated gears needs to be measured. The existing measuring equipment is usually a portable measuring instrument held by a worker or a gear clamped to a table type measuring instrument for detection, which needs to be frequently installed and disassembled, and the measuring efficiency is low.

[0004] 2. When measuring the hardness of the heat-treated gear, in order to ensure the accuracy of the measurement, the hardness of 3-5 teeth of a single gear is usually measured to obtain the average hardness data. After the measurement of one tooth is completed, the gear needs to be re-clamped for the measurement of the other teeth. The gear needs to be clamped for many times, and each tooth needs to be measured on the tooth top, tooth surface and tooth root, so the measurement workload is large. SUMMARY

[0005] The purpose of the present application is to provide a rapid hardness measuring device for heat-treated gears, which has a simple structure and a reasonable design.

[0006] The present application achieves the above-mentioned purpose by the following technical solutions:

[0007] The rapid hardness measuring device for heat-treated gears comprises a rack, a plate chain conveyor is arranged on the top of the rack, a plurality of automatic clamping and loosening mechanisms are arranged on the chain plates of the plate chain conveyor at equal intervals, a No. 1 fixed plate is fixedly installed on the middle part of the rear side of the plate chain conveyor, a fixed frame is fixedly installed on the rear side of the No. 1 fixed plate, a No. 1 hydraulic rod is fixedly installed on the top of the fixed frame, an L-shaped plate is movably penetrated and fixedly installed on the bottom of the output end of the No. 1 hydraulic rod, a multi-point measuring mechanism for measuring the gear is arranged on the L-shaped plate, and two No. 1 mounting plates are fixedly installed on the left and right sides of the L-shaped plate.

[0008] Further comprising:

[0009] The limiting stretching mechanism is arranged on the front top of the plate chain conveyor, and the automatic clamping and loosening mechanism is used in cooperation with the limiting stretching mechanism, so that the automatic clamping and loosening of the gear and the rotation in the conveying process are realized.

[0010] The multi-point measuring mechanism comprises a limiting slide rail fixedly installed on the L-shaped plate, a plurality of limiting sliding blocks slidably connected on the limiting slide rail, a multi-point measuring assembly arranged on the front side of the limiting sliding block, and a locking assembly arranged on the rear side of the limiting sliding block.

[0011] Preferably, a rotating frame is fixedly installed on the front top of the rack, a main control computer is rotatably installed on the top of the rotating frame, and a main control module and a communication module are arranged in the main control computer.

[0012] Preferably, the automatic clamping and loosening mechanism comprises a No. 2 fixed plate fixedly installed on the top of the plate chain of the plate chain conveyor, a vertical plate fixedly installed on the top of the No. 2 fixed plate, a side plate fixedly installed on the top of the vertical plate, a fixed cylinder rotatably penetrating through the middle of the side plate, cover plates fixedly installed on the front and rear sides of the fixed cylinder, a clamping assembly arranged on the fixed cylinder, and a plurality of installation holes uniformly formed on the outside of the fixed cylinder, wherein a pressing block is rotatably installed in the installation hole through a coil spring.

[0013] Preferably, the clamping assembly comprises a pull rod slidably penetrating through the center of the fixed cylinder on the front side, a conical extrusion block fixedly installed on the rear side of the pull rod, a fixed ring fixedly installed in the middle of the fixed cylinder, the fixed ring being sleeved on the middle of the pull rod, and a No. 1 spring sleeved on the rear end of the pull rod, the No. 1 spring being arranged between the conical extrusion block and the fixed ring.

[0014] Preferably, a connector is rotatably installed on the front end of the pull rod, a connecting rod is rotatably installed on the front side of the connector, a fixed block is fixedly installed on the front side of the connecting rod, a fixed rod is fixedly penetrated through the middle of the fixed block, a roller is rotatably installed on the bottom of the fixed rod, and a No. 1 gear is fixedly sleeved on the outside of the front side of the fixed cylinder.

[0015] Preferably, two connecting arms are symmetrically fixedly installed on the front side of the plate chain conveyor, a guide rail limiting and rolling between the rollers is commonly fixedly installed on the top of the two connecting arms, two guide plates are symmetrically fixedly installed on the right end of the guide rail, two U-shaped frames are symmetrically fixedly installed on the bottom of the guide rail, and a one-way rack meshing with the No. 1 gear is commonly fixedly installed between the two U-shaped frames.

[0016] Preferably, the multi-point measuring assembly comprises a No. 2 installation plate fixedly installed on the front side of the limiting sliding block, a fixed slide rail fixedly installed on the middle of the front side of the No. 2 installation plate, a sliding rod slidably connected on the fixed slide rail, a stop block fixedly installed on the top of the sliding rod, and a bidirectional rack fixedly installed on the front side of the sliding rod.

[0017] Preferably, the front side bottom of the second mounting plate is symmetrically rotatably connected with two rotating shafts, the front ends of the two rotating shafts are fixedly connected with two fixed arms, the middle parts of the two rotating shafts are fixedly connected with two second gears which are meshed with the bidirectional rack, and the front side bottom of the bidirectional rack and the two fixed arms are fixedly connected with ultrasonic hardness testers which detect the hardness of the gears.

[0018] Preferably, the rear side bottom of the sliding rod is fixedly connected with a bottom block, the top of the bottom block is fixedly connected with a second spring, the top of the second spring is fixedly connected with a top block, and the top block is fixedly connected to the bottom of the second mounting plate.

[0019] Preferably, the locking assembly comprises a bottom plate fixedly connected to the rear side of the limiting sliding block, an installation block fixedly connected to the top of the bottom plate, a threaded block fixedly connected to the rear side of the middle part of the installation block, and a locking rod threaded through the middle part of the threaded block, and a pressing plate fixedly connected to the front side of the locking rod and pressed to the limiting sliding rail.

[0020] The beneficial effects of the present application are:

[0021] 1. Different from the prior art, the automatic clamping and loosening mechanism and the limiting stretching mechanism are used in cooperation, automatic clamping and loosening of the gear are realized in the conveying process, manual clamping is not needed, the installation and disassembly efficiency is high, and then the detection efficiency is improved.

[0022] 2. Different from the prior art, the clamped gear is self-rotated during conveying, gear replacement is realized during conveying, multiple teeth of a single gear are detected without re-clamping multiple times, time and labor are saved, multiple gears are detected simultaneously through multiple multi-point measurement assemblies on the multi-point measurement mechanism, multi-point detection of a single gear is realized, detection error is smaller, and simultaneous detection of multiple gears is realized, and the detection efficiency is high.

[0023] 3. Different from the prior art, multiple ultrasonic hardness testers are arranged on the multi-point measurement assembly, the tooth top, tooth surface and tooth root of a single tooth are detected, the hardness data of the tooth are directly obtained, the measurement data of multiple teeth of a single gear are obtained, and then the average is obtained, and the accuracy of the data is improved.

[0024] 4. Different from the prior art, the plate chain conveyor and the automatic clamping and loosening mechanism are used to realize assembly line clamping of multiple gears, and detection of the ultrasonic hardness tester, so that mass detection is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a first perspective view of the overall structure of the present application;

[0026] Figure 2 is a second perspective view of the overall structure of the present application;

[0027] Figure 3 is a perspective view of the multi-point measuring mechanism, the fixing frame and the first hydraulic rod of the present application;

[0028] Figure 4 is an exploded view of the multi-point measuring mechanism, the fixing frame and the first hydraulic rod of the present application;

[0029] Figure 5 is a perspective view of the multi-point measuring mechanism from the first visual angle of the present application;

[0030] Figure 6 is a perspective view of the multi-point measuring mechanism from the second visual angle of the present application;

[0031] Figure 7 is a perspective view of the automatic clamping and releasing mechanism of the present application;

[0032] Figure 8 is an exploded view of the automatic clamping and releasing mechanism of the present application;

[0033] Figure 9 is a perspective view of the limiting and stretching mechanism of the present application;

[0034] Figure 10 is a schematic view of the automatic clamping and releasing mechanism and the limiting and stretching mechanism of the present application;

[0035] Figure 11 is a schematic view of the multi-point measuring mechanism of the present application.

[0036] In the figure: 1, frame; 2, plate chain conveyor; 3, automatic clamping and releasing mechanism; 31, vertical plate; 32, second fixing plate; 33, side plate; 34, cover plate; 35, fixing cylinder; 36, mounting hole; 37, first gear; 38, clamping assembly; 381, conical extrusion block; 382, first spring; 383, fixing ring; 384, pull rod; 385, adapter; 386, fixing block; 387, roller; 388, connecting rod; 39, abutting block; 4, multi-point measuring mechanism; 41, limiting slide rail; 42, limiting slide block; 43, multi-point measuring assembly; 431, second mounting plate; 432, rotating shaft; 433, ultrasonic hardness tester; 434, fixing arm; 435, second gear; 436, bidirectional rack; 437, sliding rod; 438, stop block; 439, fixing slide rail; 44, locking assembly; 441, threaded block; 442, locking rod; 443, bottom plate; 444, mounting block; 45, bottom block; 46, second spring; 47, top block; 5, fixing frame; 6, L-shaped plate; 7, first hydraulic rod; 8, limiting and stretching mechanism; 81, guide plate; 82, connecting arm; 83, guide slide rail; 84, unidirectional rack; 85, U-shaped frame; 9, main control computer; 10, rotating frame; 11, first mounting plate; 12, first fixing plate. DETAILED DESCRIPTION

[0037] The application will be described in further detail below with reference to the drawings. It is necessary to point out here that the following detailed description is only used to further illustrate the application and cannot be understood as limiting the scope of protection of the application. Those skilled in the art can make some non-essential improvements and adjustments to the application according to the above application content.

[0038] Embodiment: please refer to Figure 1 、 Figure 2 and Figure 3 , the heat treatment processing gear hardness rapid measurement device, including the rack 1, the rack 1 top is provided with the plate chain conveyor 2, the chain plate of the plate chain conveyor 2 is provided with a plurality of automatic clamping and loosening mechanisms 3 at equal intervals, the rear side middle part of the plate chain conveyor 2 is fixedly installed with a fixed plate 12, the rear side of the fixed plate 12 is fixedly installed with a fixed frame 5, the top of the fixed frame 5 is fixedly installed with a hydraulic rod 7, the output end bottom of the hydraulic rod 7 is movably penetrated through the rear fixed installation of the fixed frame 5, and the L-shaped plate 6 is provided with a plurality of point measuring mechanisms 4 for measuring the gear, the front side top of the plate chain conveyor 2 is provided with a limiting stretching mechanism 8, the limiting stretching mechanism 8 and the automatic clamping and loosening mechanism 3 are used in cooperation, the automatic clamping and loosening of the gear and the rotation in the conveying process are realized.

[0039] The rack 1 is used for fixing the plate chain conveyor 2, the plate chain conveyor 2 is used for circulating conveying the automatic clamping and loosening mechanism 3 and the gear thereon from right to left in turn, realizes the batch testing of the circulation type, the testing efficiency is high, the hydraulic rod 7 is used for adjusting the height of the multi-point measuring mechanism 4, and the pressure between the multi-point measuring mechanism 4 and the gear is ensured at the same time, and the multi-point measuring mechanism 4 is used for measuring the tooth top, tooth surface and tooth root of the gear at the same time.

[0040] The L-shaped plate 6 is symmetrically fixedly installed with two first mounting plates 11 on the left and right sides; the front side top of the rack 1 is fixedly installed with a rotating frame 10, the top of the rotating frame 10 is rotatably installed with a master control computer 9, the inside of the master control computer 9 is provided with a master control module and a communication module (the master control module and the communication module are prior art), the master control module and the communication module establish data connection, and the communication module is electrically connected with the plate chain conveyor 2, the hydraulic rod 7 and the multi-point measuring mechanism 4.

[0041] Please refer to Figure 1 、 Figure 7 and Figure 8The automatic clamping and loosening mechanism 3 comprises a No. 2 fixed plate 32 fixedly installed on the top of the plate chain conveyor 2, a vertical plate 31 fixedly installed on the top of the No. 2 fixed plate 32, a side plate 33 fixedly installed on the top of the vertical plate 31, a fixed cylinder 35 rotatably penetrated in the middle of the side plate 33, cover plates 34 fixedly installed on the front and back of the fixed cylinder 35, a clamping assembly 38 arranged on the fixed cylinder 35, and a plurality of installation holes 36 uniformly arranged on the outside of the fixed cylinder 35.

[0042] Please refer to Figure 1 、 Figure 7 、 Figure 8 and Figure 10 , the clamping assembly 38 comprises a pull rod 384 slidingly penetrated in the center of the fixed cylinder 35 on the front side, a conical extrusion block 381 fixedly installed on the rear side of the pull rod 384, a fixed ring 383 fixedly installed in the middle of the inside of the fixed cylinder 35, the fixed ring 383 being sleeved on the middle of the pull rod 384, a No. 1 spring 382 sleeved on the rear end of the pull rod 384, the No. 1 spring 382 being arranged between the conical extrusion block 381 and the fixed ring 383, a connector 385 rotatably installed on the front end of the pull rod 384, a connecting rod 388 rotatably installed on the front side of the connector 385, a fixed block 386 fixedly installed on the front side of the connecting rod 388, a fixed rod fixedly penetrated in the middle of the fixed block 386, a roller 387 rotatably installed on the bottom of the fixed rod, and a No. 1 gear 37 fixedly sleeved on the outside of the front side of the fixed cylinder 35.

[0043] In use, first, the gear to be tested is sleeved on the fixed cylinder 35 on the right side of the plate chain conveyor 2, and the end side of the gear is kept on the side plate 33, at this time, the plate chain conveyor 2 is started, and the automatic clamping and loosening mechanism 3 with the gear is conveyed from right to left.

[0044] Please refer to Figure 1 、 Figure 2 、 Figure 9 and Figure 10 , two connecting arms 82 are symmetrically fixedly installed on the front side of the plate chain conveyor 2, a guide rail 83 limiting the rolling of the roller 387 is commonly fixedly installed on the top of the two connecting arms 82, two guide plates 81 are symmetrically fixedly installed on the right end of the guide rail 83, two U-shaped frames 85 are symmetrically fixedly installed on the bottom of the guide rail 83, a one-way rack 84 meshing with the No. 1 gear 37 is commonly fixedly installed between the two U-shaped frames 85, and the guide rail 83 has the function of limiting the roller 387, and the middle part of the guide rail 83 has a forward corner, when the roller 387 slides through the corner, the roller 387 and the connecting rod 388 thereon are driven to move forward.

[0045] When the automatic clamping and loosening mechanism 3 drives the gear to be tested from right to left, in the initial state, under the action of the coil spring on the abutting block 39, the abutting block 39 is driven to shrink inside the mounting hole 36, the roller 387 enters the guide rail 83 under the guidance of the guide plate 81, while the plate chain conveyor 2 continues to move from right to left, the second fixed plate 32 and the upright plate 31 thereon are driven to move from right to left, the side plate 33 and the fixed cylinder 35 thereon are indirectly driven to move from right to left, and the roller 387 is indirectly driven to move from right to left, then the roller 387 slides along the guide rail 83, the roller 387 slides to the corner of the guide rail 83, drives the fixed block 386 and the adapter 385 thereon to move forward, and then drives the pull rod 384 and the conical extrusion block 381 thereon to move forward, and then the conical extrusion block 381 extrudes the abutting block 39 to rotate away from the center of the fixed cylinder 35, extrudes the gear from inside to outside by the abutting block 39, realizes the fixation of the gear, and compresses the first spring 382 at the same time. At this time, the tensioning and fixing state of the size is maintained, and the plate chain conveyor 2 is conveyed from right to left until it reaches the next corner of the guide rail 83. At this time, under the action of the restoring force of the first spring 382, the conical extrusion block 381 is driven to move backward, the extrusion of the conical extrusion block 381 to the abutting block 39 is released, and then the clamping and fixation of the gear to be tested is released. Therefore, when the automatic clamping and loosening mechanism 3 drives the gear to be tested to convey from right to left along the plate chain conveyor 2, the automatic clamping and fixation of the gear is realized, the stability of the gear during testing is ensured, the clamping is automatically loosened, and the gear is conveniently removed.

[0046] Please refer to Figure 2 and Figure 5 , the multi-point measurement mechanism 4 includes a limiting slide rail 41 fixedly installed on the L-shaped plate 6, a plurality of limiting slide blocks 42 are slidably connected on the limiting slide rail 41, a multi-point measurement assembly 43 is arranged on the front side of the limiting slide block 42, and a locking assembly 44 is arranged on the rear side of the limiting slide block 42. The number of multi-point measurement assemblies 43 can be increased or decreased according to the number of teeth to be measured for a single gear.

[0047] Please refer to Figure 2 , Figure 5 , Figure 6 and Figure 11The multi-point measuring assembly 43 comprises a No. 2 mounting plate 431 fixedly installed at the front side of the limiting sliding block 42, a fixed sliding rail 439 fixedly installed at the middle of the front side of the No. 2 mounting plate 431, a sliding rod 437 slidably connected to the fixed sliding rail 439, a stop block 438 fixedly installed at the top of the sliding rod 437, a bidirectional rack 436 fixedly installed at the front side of the sliding rod 437, two rotating shafts 432 symmetrically and rotatably installed at the bottom of the front side of the No. 2 mounting plate 431, two fixed arms 434 fixedly installed at the front ends of the two rotating shafts 432, two No. 2 gears 435 fixedly sleeved on the middle portions of the two rotating shafts 432 and engaged with the bidirectional rack 436, an ultrasonic hardness tester 433 for detecting the gear hardness fixedly installed at the bottom of the front side of the bidirectional rack 436 and at the two fixed arms 434, wherein the lengths of the two fixed arms 434 are different, the ultrasonic hardness tester 433 located at the middle portion is used for measuring the addendum of the gear to be measured, the ultrasonic hardness tester 433 located at the right side is used for detecting the tooth surface of the gear to be measured, and the ultrasonic hardness tester 433 located at the left side is used for detecting the dedendum of the gear to be measured.

[0048] Please refer to Figure 2 、 Figure 5 、 Figure 6 and Figure 7 , the bottom of the rear side of the sliding rod 437 is fixedly installed with a bottom block 45, the top of the bottom block 45 is fixedly installed with a No. 2 spring 46, the top of the No. 2 spring 46 is fixedly installed with a top block 47, the top block 47 is fixedly installed at the bottom of the No. 2 mounting plate 431, the locking assembly 44 comprises a bottom plate 443 fixedly installed at the bottom of the rear side of the limiting sliding block 42, the top of the bottom plate 443 is fixedly installed with a mounting block 444, the middle of the rear side of the mounting block 444 is fixedly installed with a threaded block 441, the middle of the threaded block 441 is threadedly penetrated with a locking rod 442, the front side of the locking rod 442 is fixedly installed with a pressing plate press-connected with the limiting sliding rail 41.

[0049] When the automatic clamping loosening mechanism 3 clamps and fixes the gear, the plate chain conveyor 2 drives the clamped gear to convey from right to left, the first gear 37 is engaged with the one-way rack 84, at this time, with the conveying of the plate chain conveyor 2 from right to left, the first gear 37 and the fixed cylinder 35 thereon are driven to rotate, synchronously driving the rotation of the abutting block 39 and the to-be-measured gear clamped thereon, realizing the rotation switching of the teeth, facilitating the detection of different teeth, when the to-be-measured gear moves directly below the multi-point measurement assembly 43, at this time, the conveying of the plate chain conveyor 2 is stopped, the first hydraulic rod 7 is started, the output end of the first hydraulic rod 7 drives the L-shaped plate 6 and the limiting slide rail 41 thereon to move downward, synchronously driving the downward movement of the limiting slide block 42 and the multi-point measurement assembly 43 thereon, starting the ultrasonic hardness tester 433, at this time, the second mounting plate 431 and the fixed slide rail 439 thereon move downward, simultaneously driving the downward movement of the ultrasonic hardness tester 433 on the bidirectional rack 436, until the detection head of the ultrasonic hardness tester 433 on the bidirectional rack 436 contacts the tooth top of the gear, synchronously driving the upward movement of the bidirectional rack 436, simultaneously driving the rotation of the second gear 435 and the rotating shaft 432 thereon, then driving the rotation of the fixed arm 434 and the ultrasonic hardness tester 433 thereon, until the ultrasonic hardness testers 433 on both sides contact the tooth surface and the tooth root of the teeth respectively, realizing the synchronous testing of the tooth top, tooth surface and tooth root of a single tooth, and a plurality of multi-point measurement assemblies 43 are arranged at equal intervals on the limiting slide rail 41, each multi-point measurement assembly 43 detects the teeth of the gear, and with the conveying and rotation of the gear from right to left by the plate chain conveyor 2, the switching of the teeth of a single gear is realized, facilitating the detection of different teeth of a single gear, and the detection of a plurality of gears, improving the detection efficiency, when it is necessary to adjust the interval of the multi-point measurement assembly 43, at this time, the locking rod 442 is rotated, synchronously driving the rearward movement of the locking rod 442, loosening the pressure connection and fixation of the locking rod 442 to the limiting slide rail 41, at this time, the limiting slide block 42 is slid along the limiting slide rail 41, realizing the interval adjustment of the multi-point measurement assembly 43, adjusting the interval of the multi-point measurement assembly 43, cooperating with the rotation of the to-be-measured gear, realizing the measurement of teeth with different intervals.

[0050] It should be noted that the heat treatment processing gear hardness rapid measurement device, in use, first the staff stands on the left side of the plate chain conveyor 2, keeps the intermittent conveying state of the plate chain conveyor 2, fixes the gear sleeve to the fixed cylinder 35, at this time, with the plate chain conveyor 2 driving the gear to be measured to convey from right to left, until the roller 387 slides into the guide rail 83, while the plate chain conveyor 2 continuously moves from right to left, drives the second fixed plate 32 and the vertical plate 31 thereon to move from right to left, at the same time, drives the side plate 33 and the fixed cylinder 35 thereon to move from right to left, indirectly drives the roller 387 to move from right to left, then the roller 387 slides along the guide rail 83, the roller 387 slides to the corner of the guide rail 83, drives the fixed block 386 and the adapter 385 thereon to move forward, then drives the pull rod 384 and the conical extrusion block 381 thereon to move forward, then the conical extrusion block 381 extrudes the abutting block 39 to rotate away from the center of the fixed cylinder 35, extrudes the gear from inside to outside by the abutting block 39, realizes the fixation of the gear, after clamping and fixing, when the gear moves below the multi-point measurement assembly 43, the ultrasonic hardness tester 433 is started, the output end of the first hydraulic rod 7 drives the L-shaped plate 6 and the limiting slide rail 41 thereon to move downward, synchronously drives the limiting slide block 42 and the multi-point measurement assembly 43 thereon to move downward, detects the tooth top, tooth surface and tooth root of the gear synchronously by the multi-point measurement assembly 43, and multiple multi-point measurement assemblies 43 detect multiple gears at the same time, the detection efficiency is high, and the plate chain conveyor 2 drives the gear to continue to move from right to left, realizes the rotation of the gear to be measured by the meshing of the one-way rack 84 and the first gear 37, realizes the rotation of the gear to be measured while conveying during the conveying process, realizes the switching of the gear teeth after switching, and is conveyed below the next multi-point measurement assembly 43, so as to facilitate the detection of another gear tooth, so as to realize the synchronous detection of multiple gears at the same time, the detection of multiple gear teeth of the same gear, and the loosening of the gear along the plate chain conveyor 2 from right to left, realizes the loosening of the gear, is conducive to realizing the automatic clamping and loosening of the gear, and has high detection efficiency.

[0051] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the present application. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A rapid hardness measuring device for heat treated machined gears comprising a frame, characterized in that: The rack top is provided with a plate chain conveyor, a plurality of automatic clamping and loosening mechanisms are arranged on the chain plates of the plate chain conveyor at equal intervals, a first fixed plate is fixedly installed at the middle of the rear side of the plate chain conveyor, a fixed frame is fixedly installed at the rear side of the first fixed plate, a first hydraulic rod is fixedly installed at the top of the fixed frame, an L-shaped plate is movably penetrated and fixedly installed at the bottom of the output end of the first hydraulic rod, a plurality of point measuring mechanisms for measuring the gear are arranged on the L-shaped plate, and two first installation plates are fixedly installed on the left and right sides of the L-shaped plate. Also includes: The limit stretching mechanism is arranged at the top of the front side of the plate chain conveyor, and the cooperation of the limit stretching mechanism and the automatic clamping and loosening mechanism realizes the automatic clamping and loosening of the gear and the rotation in the conveying process. The plurality of point measuring mechanisms comprise limit sliding rails fixedly installed on the L-shaped plate, a plurality of limit sliding blocks are slidably connected to the limit sliding rails, a plurality of point measuring assemblies are arranged on the front side of the limit sliding blocks, and locking assemblies are arranged on the rear side of the limit sliding blocks. The automatic clamping and loosening mechanism comprises a second fixed plate fixedly installed on the top of the plate chain of the plate chain conveyor, a vertical plate fixedly installed on the top of the second fixed plate, a side plate fixedly installed on the top of the vertical plate, a fixed cylinder rotatably penetrated in the middle of the side plate, cover plates fixedly installed on the front and rear sides of the fixed cylinder, a clamping assembly arranged on the fixed cylinder, a plurality of installation holes uniformly formed on the outside of the fixed cylinder, and a resisting block unidirectionally rotatably installed in the installation hole through a coil spring. The clamping assembly comprises a pull rod slidably penetrated in the center of the fixed cylinder on the front side, a conical extrusion block fixedly installed on the rear side of the pull rod, a fixed ring fixedly installed in the middle of the inside of the fixed cylinder, the fixed ring being sleeved on the middle of the pull rod, a first spring sleeved on the rear end of the pull rod, and the first spring being arranged between the conical extrusion block and the fixed ring. A connector is rotatably installed on the front end of the pull rod, a connecting rod is rotatably installed on the front side of the connector, a fixed block is fixedly installed on the front side of the connecting rod, a fixed rod is fixedly penetrated in the middle of the fixed block, a roller is rotatably installed on the bottom of the fixed rod, and a first gear is fixedly sleeved on the outside of the front side of the fixed cylinder. Two connecting arms are symmetrically fixedly installed on the front side of the plate chain conveyor, a guide sliding rail limiting the rotation between the rollers is commonly fixedly installed on the top of the two connecting arms, two guide plates are symmetrically fixedly installed on the right end of the guide sliding rail, two U-shaped frames are symmetrically fixedly installed on the bottom of the guide sliding rail, and a unidirectional rack engaged with the first gear is commonly fixedly installed between the two U-shaped frames. The plurality of point measuring assemblies comprise a second installation plate fixedly installed on the front side of the limit sliding block, a fixed sliding rail fixedly installed on the middle of the front side of the second installation plate, a sliding rod slidably connected to the fixed sliding rail, a stop block fixedly installed on the top of the sliding rod, and a bidirectional rack fixedly installed on the front side of the sliding rod. Two rotating shafts are symmetrically rotatably installed on the bottom of the front side of the second installation plate, a fixed arm is fixedly installed on the front end of each of the two rotating shafts, a second gear engaged with the bidirectional rack is fixedly sleeved on the middle of each of the two rotating shafts, and an ultrasonic hardness tester for detecting the hardness of the gear is fixedly installed on the bottom of the front side of the bidirectional rack and on each of the two fixed arms. The bottom block is fixedly installed at the rear bottom of the sliding rod, the No.

2. The rapid hardness measurement apparatus for heat treated process gears according to claim 1, wherein: The rotating frame is fixedly installed at the top of the front side of the rack, and the main control computer is rotatably installed at the top of the rotating frame.

3. The rapid hardness measurement apparatus for heat treated process gears according to claim 1, wherein: The locking assembly comprises a bottom plate fixedly installed at the rear bottom of the limiting sliding block, an installation block fixedly installed at the top of the bottom plate, a threaded block fixedly installed at the rear middle of the installation block, and a locking rod threaded through the middle of the threaded block.

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