Device for rapidly measuring hardness of heat-treated gear

Abstract

The invention relates to the technical field of gear hardness measurement, in particular to a heat treatment machining gear hardness rapid measuring device which comprises a rack, a plate chain conveyor is arranged at the top of the rack, a plurality of automatic clamping and loosening mechanisms are arranged on a chain plate of the plate chain conveyor at equal intervals, and a first fixing plate is fixedly mounted in the middle of the rear side of the plate chain conveyor; a first fixing plate is fixedly installed on the rear side of the conveying device, a fixing frame is fixedly installed on the rear side of the first fixing plate, a first hydraulic rod is fixedly installed on the top of the fixing frame, and an L-shaped plate is fixedly installed on the bottom of the output end of the first hydraulic rod after the bottom of the output end of the first hydraulic rod movably penetrates through the fixing frame. According to the multi-point gear detection device, automatic clamping, fixing and loosening of gears are achieved, multiple gears are detected at the same time through multiple multi-point measurement assemblies on the multi-point measurement mechanism, multi-point detection of a single gear is achieved, the detection error is smaller, simultaneous detection of the multiple gears is achieved at the same time, 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, and is directly related to gear wear resistance, fatigue resistance and service life. The testing is usually performed 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 tooth surface of the ordinary gear only needs to be tested. The gear strength testing is usually performed by using an ultrasonic hardness tester, a Rockwell hardness tester and other measuring equipment. The existing equipment has the following problems in measurement: 1. When a factory produces in large quantities, a large number of heat-treated gear hardnesses usually need 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.

[0003] 2. When the hardness of the heat-treated gear is measured, in order to ensure the accuracy of the measurement, the hardness of 3-5 teeth of a single gear is usually measured, and the average value is obtained. After the measurement of one tooth is completed, the gear needs to be clamped again for the measurement of another tooth. The gear needs to be clamped for multiple times, and each tooth needs to be measured for the tooth top, tooth surface and tooth root, so the measurement workload is large. SUMMARY

[0004] 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.

[0005] The present application achieves the above-mentioned purpose by the following technical solutions: The rapid hardness measuring device for heat-treated gears comprises a rack, a plate chain conveyor arranged on the top of the rack, a plurality of automatic clamping and loosening mechanisms arranged at equal intervals on the chain plates of the plate chain conveyor, a first fixed plate fixedly installed at the middle of the rear side of the plate chain conveyor, a fixed frame fixedly installed at the rear side of the first fixed plate, a first hydraulic rod fixedly installed at the top of the fixed frame, an L-shaped plate movably penetrating through the rear of the fixed frame at the bottom of the output end of the first hydraulic rod, a multi-point measuring mechanism for measuring the gear arranged on the L-shaped plate, and two first mounting plates fixedly installed on the left and right sides of the L-shaped plate. Further comprising: A limiting stretching mechanism arranged at the top of the front side of the plate chain conveyor, which is used in cooperation with the automatic clamping and loosening mechanism to realize the automatic clamping and loosening of the gear and the rotation of the gear during the conveying process. 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.

[0006] Preferably, a rotating frame is fixedly installed on the top of the front side 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 inside the main control computer.

[0007] 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, a plurality of installation holes uniformly arranged on the outside of the fixed cylinder, and a resisting block rotatably installed in the installation hole through a coil spring.

[0008] 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 on the middle of the inside of the fixed cylinder, the fixed ring being sleeved on the middle of the pull rod, a No. 1 spring sleeved on the rear end of the pull rod, and the No. 1 spring being arranged between the conical extrusion block and the fixed ring.

[0009] 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.

[0010] Preferably, two connecting arms are symmetrically fixedly installed on the front side of the plate chain conveyor, a guide rail limiting the rolling of the roller 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.

[0011] 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.

[0012] Preferably, two rotating shafts are symmetrically rotatably installed on the bottom of the front side of the No. 2 installation plate, a fixed arm is fixedly installed on the front end of each of the two rotating shafts, a No. 2 gear meshing 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.

[0013] Preferably, the rear bottom of the sliding rod is fixedly provided with a bottom block, the top of the bottom block is fixedly provided with a second spring, the top of the second spring is fixedly provided with a top block, and the top block is fixedly arranged on the bottom of the second mounting plate.

[0014] Preferably, the locking assembly comprises a bottom plate fixedly arranged on the rear bottom of the limiting sliding block, a mounting block fixedly arranged on the top of the bottom plate, a threaded block fixedly arranged on the rear middle of the mounting block, and a locking rod threadedly penetrating through the middle of the threaded block, wherein the front side of the locking rod is fixedly provided with a pressing plate in pressure connection with the limiting sliding rail.

[0015] The present application has the advantages that: 1. Different from the prior art, the automatic clamping and loosening mechanism and the limiting stretching mechanism are used in cooperation to realize automatic clamping and loosening of the gear during conveying, without manual clamping one by one, so that the installation and dismounting efficiency is high, and the detection efficiency is improved.

[0016] 2. Different from the prior art, the clamped gear is allowed to rotate by itself during conveying, so that the gear is replaced while conveying, and the multiple teeth of a single gear are detected without re-clamping multiple times, so that time and labor are saved, multiple gears are detected simultaneously through the multiple multi-point measuring assemblies on the multi-point measuring mechanism, so that multi-point detection of a single gear is realized, the detection error is smaller, and multiple gears are detected simultaneously, so that the detection efficiency is high.

[0017] 3. Different from the prior art, multiple ultrasonic hardness meters are arranged on the multi-point measuring assembly, so that 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, so that the accuracy of the data is improved.

[0018] 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 the detection of the ultrasonic hardness meter is convenient, so that large-scale detection is realized. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a first perspective view of the overall structure of the present application; Figure 2 is a second perspective view of the overall structure of the present application; Figure 3 is a perspective view of the multi-point measuring mechanism, the fixing frame and the first hydraulic rod of the present application; Figure 4 is an exploded view of the multi-point measuring mechanism, the fixing frame and the first hydraulic rod of the present application; Figure 5 is a first perspective view of the multi-point measuring mechanism of the present application; Figure 6 is a schematic diagram of a stereoscopic second perspective view of the multi-point measuring mechanism of the present application; Figure 7 is a perspective view of the automatic clamping and releasing mechanism of the present application; Figure 8 is an exploded view of the automatic clamping and releasing mechanism of the present application; Figure 9 is a perspective view of the limiting and stretching mechanism of the present application; Figure 10 is a schematic diagram of the automatic clamping and releasing mechanism and the limiting and stretching mechanism of the present application in cooperation; Figure 11 is a schematic diagram of the multi-point measuring mechanism in use of the present application.

[0020] In the figure: 1, frame; 2, plate chain conveyor; 3, automatic clamping and releasing mechanism; 31, vertical plate; 32, No. 2 fixed plate; 33, side plate; 34, cover plate; 35, fixed cylinder; 36, mounting hole; 37, No. 1 gear; 38, clamping assembly; 381, conical extrusion block; 382, No. 1 spring; 383, fixed ring; 384, pull rod; 385, adapter; 386, fixed 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, No. 2 mounting plate; 432, rotating shaft; 433, ultrasonic hardness tester; 434, fixed arm; 435, No. 2 gear; 436, bidirectional rack; 437, sliding rod; 438, stop block; 439, fixed slide rail; 44, locking assembly; 441, threaded block; 442, locking rod; 443, bottom plate; 444, mounting block; 45, bottom block; 46, No. 2 spring; 47, top block; 5, fixed frame; 6, L-shaped plate; 7, No. 1 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, No. 1 mounting plate; 12, No. 1 fixed plate. DETAILED DESCRIPTION

[0021] It is necessary to point out here that the following detailed description is only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0022] Embodiment: please refer to Figure 1 , Figure 2 and Figure 3The utility model relates to a heat treatment processing gear hardness rapid measuring device, including frame 1, the top of frame 1 is provided with plate chain conveyor 2, the chain plate of plate chain conveyor 2 is provided with a plurality of automatic clamping loosening mechanism 3 at equal intervals, one fixed plate 12 is fixedly installed in the middle part of plate chain conveyor 2 rear side, fixed frame 5 is fixedly installed in the rear side of one fixed plate 12, one hydraulic rod 7 is fixedly installed at the top of fixed frame 5, and the bottom of the output end of one hydraulic rod 7 is movably penetrated through fixed frame 5 rear fixed installation has L shaped plate 6, and the plurality of point measuring mechanism 4 for measuring gear is set up on L shaped plate 6, the front side top of plate chain conveyor 2 is provided with limiting stretch mechanism 8, and the cooperation of limiting stretch mechanism 8 and automatic clamping loosening mechanism 3 realizes the automatic clamping loosening of gear and the rotation in the conveying process.

[0023] Frame 1 is used for fixing plate chain conveyor 2, and plate chain conveyor 2 is used to sequentially circulate the automatic clamping loosening mechanism 3 and gear on it from right to left, realizes the batch testing of circulation, and the testing efficiency is high, one hydraulic rod 7 is used to adjust the height of the plurality of point measuring mechanism 4, and the pressure between the plurality of point measuring mechanism 4 and gear is guaranteed, and the plurality of point measuring mechanism 4 is used to measure the tooth top, tooth surface and tooth root of gear simultaneously.

[0024] L shaped plate 6 is symmetrically fixedly installed with two one mounting plates 11 on the left and right sides, and rotating frame 10 is fixedly installed at the top of the front side of frame 1, rotating frame 10 is rotatably installed with main control computer 9 at the top, main control module and communication module are arranged in main control computer 9 (main control module and communication module are prior art), main control module and communication module establish data connection, and communication module is electrically connected with plate chain conveyor 2, one hydraulic rod 7 and the plurality of point measuring mechanism 4.

[0025] Please refer to Figure 1 、 Figure 7 And Figure 8 , automatic clamping loosening mechanism 3 includes two fixed plates 32 fixedly installed on the top of the plate chain of plate chain conveyor 2, and the top of two fixed plates 32 is fixedly installed with vertical plate 31, vertical plate 31 is fixedly installed with side plate 33 at the top, side plate 33 is rotatably penetrated with fixed cylinder 35 in the middle part, and cover plate 34 is fixedly installed on the front and rear sides of fixed cylinder 35, clamping assembly 38 is arranged on fixed cylinder 35, a plurality of installation holes 36 are uniformly provided on the outside of fixed cylinder 35, and one-way rotation is installed with abutting block 39 in installation hole 36 through coil spring.

[0026] Please refer to Figure 1 、 Figure 7 、 Figure 8 And Figure 10The clamping assembly 38 comprises a pull rod 384 slidingly penetrating the center of the fixing cylinder 35 at the front side, a conical extrusion block 381 fixedly installed at the rear side of the pull rod 384, a fixing ring 383 fixedly installed at the middle of the inside of the fixing cylinder 35, the fixing 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 fixing ring 383, a connector 385 rotatably installed at the front end of the pull rod 384, a connecting rod 388 rotatably installed at the front side of the connector 385, a fixing block 386 fixedly installed at the front side of the connecting rod 388, a fixing rod fixedly penetrating the middle of the fixing block 386, a roller 387 rotatably installed at the bottom of the fixing rod, and a No. 1 gear 37 fixedly sleeved at the outside of the front side of the fixing cylinder 35.

[0027] In use, first, the gear to be tested is sleeved on the fixing cylinder 35 at the right side of the plate chain conveyor 2, 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 plate chain conveyor 2 conveys the automatic clamping and loosening mechanism 3 with the gear from right to left.

[0028] Please refer to Figure 1 、 Figure 2 、 Figure 9 and Figure 10 , two connecting arms 82 are symmetrically fixedly installed at the front side of the plate chain conveyor 2, the top of the two connecting arms 82 is commonly fixedly installed with a guide slide rail 83 limiting the rolling of the roller 387, two guide plates 81 are symmetrically fixedly installed at the right end of the guide slide rail 83, two U-shaped frames 85 are symmetrically fixedly installed at the bottom of the guide slide rail 83, a one-way rack 84 engaged with the No. 1 gear 37 is commonly fixedly installed between the two U-shaped frames 85, the guide slide rail 83 has the function of limiting the roller 387, and the middle of the guide slide 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.

[0029] 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.

[0030] 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 plurality of multi-point measurement assemblies 43 are 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.

[0031] 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.

[0032] Please refer to Figure 2 、 Figure 5 、 Figure 6 and Figure 7 The bottom block 45 is fixedly installed at the bottom of the rear side of the sliding rod 437, the No. 2 spring 46 is fixedly installed at the top of the bottom block 45, the top block 47 is fixedly installed at the top of the No. 2 spring 46, and 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, an installation block 444 fixedly installed at the top of the bottom plate 443, a threaded block 441 fixedly installed at the middle of the rear side of the installation block 444, a locking rod 442 threadedly penetrating through the middle of the threaded block 441, and a pressing plate fixedly installed at the front side of the locking rod 442 and press-connected to the limiting sliding rail 41.

[0033] After the automatic clamping and releasing mechanism 3 clamps and fixes the gear, the plate chain conveyor 2 drives the clamped gear to be conveyed from right to left. At this time, the first gear 37 meshes with the one-way rack 84. As the plate chain conveyor 2 conveys from right to left, it drives the first gear 37 and its fixed cylinder 35 to rotate, synchronously driving the abutment block 39 and the gear to be tested clamped on it to rotate. This achieves the switching of gear rotation, facilitating the detection of different gears. When the gear to be tested moves directly below the multi-point measuring component 43, the conveying of the plate chain conveyor 2 is stopped, and a new mechanism is started. Hydraulic rod 7, at its output end, drives L-shaped plate 6 and its limiting slide rail 41 downwards, simultaneously driving limiting slider 42 and its multi-point measuring component 43 downwards, activating ultrasonic hardness tester 433. At this time, mounting plate 431 and its fixed slide rail 439 move downwards, simultaneously driving bidirectional rack 436 and its ultrasonic hardness tester 433 downwards until the testing head of ultrasonic hardness tester 433 on bidirectional rack 436 contacts the tooth tip of the gear, simultaneously driving bidirectional rack 436 upwards. The mechanism drives the second gear 435 and its shaft 432 to rotate, which in turn drives the fixed arm 434 and its ultrasonic hardness tester 433 to rotate until the ultrasonic hardness testers 433 on both sides contact the tooth surface and tooth root of the gear, respectively. This achieves simultaneous testing of the tooth tip, tooth surface, and tooth root of a single tooth. Multiple multi-point measuring components 43 are evenly spaced on the limiting slide rail 41, each measuring component 43 testing the gear teeth. As the plate chain conveyor 2 drives the gear to rotate from right to left, the switching of the teeth of a single gear is achieved. This facilitates the detection of different teeth on a single gear, as well as the simultaneous detection of multiple gears, improving detection efficiency. When it is necessary to adjust the spacing of the multi-point measuring components 43, the locking rod 442 is rotated, which simultaneously drives the locking rod 442 to move backward, releasing the locking rod 442 from pressing and fixing the limiting slide rail 41. At this time, the limiting slider 42 is slid along the limiting slide rail 41, realizing the adjustment of the spacing of the multi-point measuring components 43. By adjusting the spacing of the multi-point measuring components 43 and coordinating with the rotation of the gear to be tested, the teeth can be measured after different spacings and numbers of teeth.

[0034] 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.

[0035] 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 gears, comprising a frame, characterized in that: A plate chain conveyor is installed at the top of the frame. Several automatic clamping and releasing mechanisms are evenly spaced on the chain plates of the plate chain conveyor. A No. 1 fixed plate is fixedly installed at the middle of the rear side of the plate chain conveyor. A fixed frame is fixedly installed behind the No. 1 fixed plate. A No. 1 hydraulic rod is fixedly installed at the top of the fixed frame. An L-shaped plate is fixedly installed after the bottom of the output end of the No. 1 hydraulic rod moves through the fixed frame. A multi-point measuring mechanism for measuring gears is set on the L-shaped plate. Two No. 1 mounting plates are symmetrically fixedly installed on the left and right sides of the L-shaped plate. Also includes: The limiting tensioning mechanism is located at the top front side of the plate chain conveyor. The combination of the limiting tensioning mechanism and the automatic clamping and releasing mechanism realizes the automatic clamping and releasing of gears and the rotation during the conveying process. The multi-point measuring mechanism includes a limiting slide rail fixedly mounted on an L-shaped plate, a plurality of limiting sliders slidably connected on the limiting slide rail, a multi-point measuring component provided on the front side of the limiting sliders, and a locking component provided on the rear side of the limiting sliders.

2. The rapid hardness measuring device for heat-treated gears according to claim 1, characterized in that: A rotating frame is fixedly installed on the top front side of the rack, and a main control computer is rotatably mounted on the top of the rotating frame. The main control computer is equipped with a main control module and a communication module.

3. The rapid hardness measuring device for heat-treated gears according to claim 1, characterized in that: The automatic clamping and releasing mechanism includes a second fixed plate fixedly installed on the top of the plate chain of the plate chain conveyor. A vertical plate is fixedly installed on the top of the second fixed plate, and a side plate is fixedly installed on the top of the vertical plate. A fixed cylinder is rotatably inserted through the middle of the side plate. Cover plates are fixedly installed on both the front and rear sides of the fixed cylinder. A clamping assembly is provided on the fixed cylinder. Several mounting holes are evenly opened on the outside of the fixed cylinder. A clamping block is installed inside the mounting hole by a coil spring that rotates in one direction.

4. The rapid hardness measuring device for heat-treated gears according to claim 3, characterized in that: The clamping assembly includes a pull rod that slides through the center of a fixed cylinder located on the front side, a conical extrusion block that is fixedly installed on the rear side of the pull rod, a fixed ring that is fixedly installed in the middle of the inside of the fixed cylinder, the fixed ring being sleeved on the middle of the pull rod, and a No. 1 spring that is sleeved on the rear end of the pull rod, the No. 1 spring being positioned between the conical extrusion block and the fixed ring.

5. The rapid hardness measuring device for heat-treated gears according to claim 4, characterized in that: An adapter is rotatably mounted at the front end of the pull rod, a connecting rod is rotatably mounted on the front side of the adapter, a fixing block is fixedly mounted on the front side of the connecting rod, a fixing rod is fixedly passed through the middle of the fixing block, a roller is rotatably mounted at the bottom of the fixing rod, and a No. 1 gear is fixedly sleeved on the front side of the fixing cylinder.

6. The rapid hardness measuring device for heat-treated gears according to claim 5, characterized in that: The plate chain conveyor has two connecting arms symmetrically fixedly installed on its front side. The top of the two connecting arms is fixedly installed with a guide rail that limits the rolling motion between the guide rail and the roller. 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. A one-way rack that meshes with the first gear is fixedly installed between the two U-shaped frames.

7. The rapid hardness measuring device for heat-treated gears according to claim 1, characterized in that: The multi-point measurement component includes a second mounting plate fixedly installed on the front side of the limit slider. A fixed slide rail is fixedly installed in the middle of the front side of the second mounting plate. A sliding rod is slidably connected on the fixed slide rail. A stop block is fixedly installed on the top of the sliding rod. A bidirectional rack is fixedly installed on the front side of the sliding rod.

8. The rapid hardness measuring device for heat-treated gears according to claim 7, characterized in that: Two rotating shafts are symmetrically mounted on the bottom front side of the No. 2 mounting plate. A fixed arm is fixedly mounted on the front end of each of the two rotating shafts. A No. 2 gear that meshes with the bidirectional rack is fixedly sleeved in the middle of each of the two rotating shafts. An ultrasonic hardness tester for detecting the hardness of the gear is fixedly mounted on the bottom front side of the bidirectional rack and on the two fixed arms.

9. The rapid hardness measuring device for heat-treated gears according to claim 8, characterized in that: A bottom block is fixedly installed at the rear bottom of the sliding rod, a second spring is fixedly installed at the top of the bottom block, a top block is fixedly installed at the top of the second spring, and the top block is fixedly installed at the bottom of the second mounting plate.

10. The rapid hardness measuring device for heat-treated gears according to claim 1, characterized in that: The locking assembly includes a base plate fixedly installed on the rear side of the bottom of the limiting slider, an installation block fixedly installed on the top of the base plate, a threaded block fixedly installed on the middle of the rear side of the installation block, a locking rod threaded through the middle of the threaded block, and a pressure plate fixedly installed on the front side of the locking rod to press against the limiting slide rail.

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