Gear surface hardness detection tool after heat treatment

Abstract

The utility model discloses a gear surface hardness detection frock after heat treatment relates to gear surface hardness detection technical field. The utility model discloses including the hardness tester: the hardness tester is provided with lifting assembly, supporting assembly, adjusting assembly and clamping assembly respectively, the utility model discloses through rotating lifting assembly, makes it drive top fixed supporting assembly and moves to make supporting assembly drive internally rotatory setting clamping assembly and move upward to make clamping assembly drive inside clamping fixed gear and move upward to make the test surface of gear and the test end of hardness tester and be in contact with, complete test, then make lifting assembly cooperate with supporting assembly drive clamping assembly and move downward to make clamping assembly drive gear and move downward, then rotate adjusting assembly, make it cooperate with clamping assembly drive gear and rotate, and repeat above steps to make the test surface of gear convenient to adjust, need not frequently dismounts the installation to gear, has improved gear's detection efficiency greatly.

Description

Technical Field

[0001] This utility model belongs to the field of gear surface hardness testing technology, and more specifically, it relates to a tooling for testing the surface hardness of gears after heat treatment. Background Technology

[0002] Gear heat treatment can improve gear performance. Its core lies in changing the internal structure of gear materials through heating, heat preservation and cooling processes, thereby improving the hardness, strength, wear resistance, fatigue resistance and impact toughness of gears.

[0003] After heat treatment, gears need to undergo hardness testing according to their material and heat treatment process requirements to ensure that the gears meet the application standards after heat treatment, so that the gear tooth surface can withstand the high-frequency contact stress during meshing.

[0004] In existing technologies, gears are typically fixed on the testing platform of a hardness tester. The testing platform then moves the gear's tooth surface to contact the testing end of the hardness tester. The hardness of the tooth surface is determined by measuring the indentation on the tooth surface. However, when testing the gear tooth surface, multiple sets of tooth surfaces need to be tested. Consequently, when changing the gear tooth surface, the gear needs to be frequently disassembled and reassembled on the testing platform, which is time-consuming and labor-intensive, thus reducing the efficiency of gear hardness testing. Utility Model Content

[0005] To address the problem that multiple sets of tooth surfaces need to be inspected when testing gear tooth surfaces, and that frequent disassembly and reassembly of gears on the testing table are required when changing gear tooth surfaces, which is time-consuming and labor-intensive and reduces the efficiency of gear hardness testing, this utility model proposes a tooling for testing the surface hardness of gears after heat treatment, in order to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a tooling for testing the surface hardness of gears after heat treatment, including a hardness tester:

[0008] The hardness tester is equipped with a lifting assembly, a support assembly, an adjustment assembly, and a clamping assembly.

[0009] The lifting component has its lifting end fixedly connected to the bottom end of the support component, so that the lifting component can drive the support component to lift.

[0010] An adjusting component is rotatably configured to rotate within the outer surface of the clamping component, thereby causing the clamping component to rotate for adjusting the circumferential angle of the clamping component.

[0011] The clamping assembly has its outer surface rotatably configured to rotate with the interior of the support assembly, so that the support assembly drives the clamping assembly to move, thereby moving the gear clamped inside the clamping assembly.

[0012] Furthermore, the lifting assembly includes a rotating seat, the bottom end of which is fixedly installed with the top end of the hardness tester, and a threaded seat is rotatably provided on the top end of the rotating seat, with a lifting screw rotatably provided inside the threaded seat.

[0013] Furthermore, the support assembly includes a fixed base, the bottom end of which is fixedly connected to the top end of the lifting screw, and a mounting bracket is fixedly connected to the top end of the fixed base.

[0014] Furthermore, the adjustment assembly includes a support base, one side of which is fixedly connected to one side of the mounting bracket, and a worm gear is rotatably mounted inside the support base, with a worm wheel meshing on the surface of the worm gear.

[0015] Furthermore, the adjustment assembly also includes a connecting shaft, one end of which is fixedly connected to one end of the worm gear, and the other end of which is fixedly connected to a handle.

[0016] Furthermore, the clamping assembly includes a first positioning rod, the outer surface of which is rotatably disposed with the interior of the mounting bracket, one end of which is fixedly connected to a support shaft, and the outer surface of the support shaft is fixedly connected to a connecting key.

[0017] Furthermore, the clamping assembly also includes a second positioning rod, the outer surface of which is fixedly installed with the inside of the worm gear. A threaded cylinder is threadedly connected to the outer surface of the second positioning rod, and a connecting piece is rotatably arranged inside the threaded cylinder. A clamping plate is fixedly connected to one end of the connecting piece, and a support rod and a guide rod are fixedly connected to one side of the clamping plate respectively. The outer surfaces of the support rod and the guide rod are both slidably arranged with the inside of the second positioning rod.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model utilizes a rotating lifting assembly to move a top-fixed support assembly, which in turn moves an internally rotating clamping assembly upwards. This clamping assembly then moves an internally clamped gear upwards, bringing the gear's test surface into contact with the hardness tester's test end to complete the test. The lifting assembly, in conjunction with the support assembly, moves the clamping assembly downwards, causing the gear to move downwards. The adjusting assembly, in conjunction with the clamping assembly, rotates the gear, and this process is repeated. This facilitates adjustment of the gear's test surface without frequent disassembly and reassembly, significantly improving gear testing efficiency.

[0020] 2. This utility model rotates a handle to drive a fixed connecting shaft on one side, which in turn drives a worm gear fixed at one end to rotate. When the worm gear rotates, it drives a worm wheel to rotate around the inside of the support base. The worm wheel drives a second positioning rod to rotate, which in turn drives a support rod and a guide rod that are slidably mounted inside to rotate in a circular motion. This causes the support rod and the guide rod to drive a clamping plate fixed at one end to rotate, which in turn drives a gear fixed on one side to rotate. The gear, in conjunction with a connecting key, drives the support shaft to rotate, allowing the support shaft to rotate around the first positioning rod as the center. This facilitates the adjustment of the circumferential angle of the gear, thereby facilitating the adjustment of the gear's detection surface.

[0021] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of this utility model from a rear-view perspective;

[0025] Figure 3 This is a schematic diagram of the structure of this utility model from a frontal view.

[0026] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the local structure at point A;

[0027] Figure 5 This is a schematic diagram of the structure of this utility model from a left-side view.

[0028] Figure 6 For the present utility model Figure 5 An enlarged schematic diagram of the local structure at point B.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Hardness tester; 2. Lifting assembly; 201. Rotating seat; 202. Threaded seat; 203. Lifting screw; 3. Support assembly; 301. Fixed seat; 302. Mounting bracket; 4. Adjustment assembly; 401. Support seat; 402. Worm gear; 403. Worm wheel; 404. Connecting shaft; 405. Rotary handle; 5. Clamping assembly; 501. First positioning rod; 502. Support shaft; 503. Connecting key; 504. Second positioning rod; 505. Threaded cylinder; 506. Connecting piece; 507. Clamping plate; 508. Support rod; 509. Guide rod. Detailed Implementation

[0031] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0032] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0033] Please see Figures 1-6 As shown, this utility model is a tooling for testing the surface hardness of gears after heat treatment, including a hardness tester 1:

[0034] The hardness tester 1 is equipped with a lifting assembly 2, a support assembly 3, an adjustment assembly 4, and a clamping assembly 5.

[0035] The lifting component 2 has its lifting end fixedly connected to the bottom end of the support component 3, so that the lifting component 2 drives the support component 3 to lift.

[0036] Adjustment component 4 is rotatably disposed inside the outer surface of clamping component 5, so that adjustment component 4 drives clamping component 5 to rotate, thereby adjusting the circumferential angle of clamping component 5;

[0037] The clamping component 5 is rotatably configured with its outer surface to rotate with the interior of the support component 3, so that the support component 3 drives the clamping component 5 to move, thereby moving the gear clamped inside the clamping component 5.

[0038] In use, the gear is fitted inside the clamping assembly 5 and then rotated to move the clamping assembly 5, thus clamping and fixing both sides of the gear during the movement. Then, the adjusting assembly 4 is rotated to drive the internally installed clamping assembly 5 to rotate, thereby facilitating the adjustment of the gear teeth position. When the position is adjusted to a suitable position, the lifting assembly 2 is rotated to drive the top-fixed support assembly 3 to move, so that the support assembly 3 drives the internally rotating clamping assembly 5 to move upward, thereby causing the clamping assembly 5 to drive the gear clamped and fixed on the inner side to move upward, so that the test surface of the gear abuts against the test end of the hardness tester 1 to complete the test. Then, the lifting assembly 2, together with the support assembly 3, drives the clamping assembly 5 to move downward, so that the clamping assembly 5 drives the gear downward. Then, the adjusting assembly 4 is rotated to drive the gear to rotate, and the above steps are repeated to facilitate the adjustment of the gear test surface.

[0039] This invention utilizes a rotating lifting assembly 2 to move a top-fixed support assembly 3, which in turn moves an internally rotating clamping assembly 5 upwards. This causes the clamping assembly 5 to move an internally clamped gear upwards, bringing the gear's test surface into contact with the test end of the hardness tester 1 to complete the test. The lifting assembly 2, in conjunction with the support assembly 3, moves the clamping assembly 5 downwards, causing the gear to move downwards. Then, the adjusting assembly 4 is rotated to rotate the gear in conjunction with the clamping assembly 5. This process is repeated, facilitating adjustment of the gear's test surface without frequent disassembly and reassembly, significantly improving gear testing efficiency.

[0040] In one embodiment, the lifting assembly 2 includes a rotating seat 201, the bottom end of which is fixedly installed with the top end of the hardness tester 1, and a threaded seat 202 is rotatably provided on the top end of the rotating seat 201, and a lifting screw 203 is rotatably provided inside the threaded seat 202.

[0041] Since the threaded surface of the lifting screw 203 is connected to the internal thread of the threaded seat 202, and the interior of the lifting screw 203 is slidably disposed with the interior of the rotating seat 201, when the threaded seat 202 rotates, it can drive the lifting screw 203 to move up and down along the interior of the rotating seat 201, so as to adjust the height of the lifting screw 203.

[0042] In one embodiment, the support component 3 includes a fixed base 301, the bottom end of which is fixedly connected to the top end of the lifting screw 203, and the top end of the fixed base 301 is fixedly connected to a mounting bracket 302.

[0043] When the lifting screw 203 moves up and down, it can drive the fixed base 301 at the top to move, so that the fixed base 301 drives the mounting bracket 302 at the top to move, thereby facilitating the adjustment of the height of the mounting bracket 302.

[0044] In one embodiment, the adjustment component 4 includes a support base 401, one side of which is fixedly connected to one side of the mounting bracket 302. A worm gear 402 is rotatably provided inside the support base 401, and a worm wheel 403 is meshed with the surface of the worm gear 402.

[0045] The adjustment assembly 4 also includes a connecting shaft 404, one end of which is fixedly connected to one end of the worm gear 402, and the other end of which is fixedly connected to a handle 405.

[0046] By rotating the handle 405, the connecting shaft 404 fixed on one side is rotated, so that the connecting shaft 404 drives the worm 402 fixed at one end to rotate. Since the outer surface of the worm 402 is rotatably set with the inside of the support base 401, and the surface of the worm 402 meshes with the surface of the worm wheel 403, when the worm 402 rotates, it can drive the worm wheel 403 to rotate with the inside of the support base 401 as the center.

[0047] In one embodiment, the clamping assembly 5 includes a first positioning rod 501, the outer surface of the first positioning rod 501 is rotatably disposed with the interior of the mounting bracket 302, one end of the first positioning rod 501 is fixedly connected to a support shaft 502, and the outer surface of the support shaft 502 is fixedly connected to a connecting key 503.

[0048] The clamping assembly 5 also includes a second positioning rod 504. The outer surface of the second positioning rod 504 is fixedly installed inside the worm gear 403. A threaded cylinder 505 is threadedly connected to the outer surface of the second positioning rod 504. A connecting piece 506 is rotatably arranged inside the threaded cylinder 505. A clamping plate 507 is fixedly connected to one end of the connecting piece 506. A support rod 508 and a guide rod 509 are fixedly connected to one side of the clamping plate 507, respectively. The outer surfaces of the support rod 508 and the guide rod 509 are slidably arranged inside the second positioning rod 504.

[0049] By fitting the inner sleeve of the gear onto the outer surface of the support shaft 502, and making the keyway inside the gear fit against the outer surface of the connecting key 503, the threaded cylinder 505 is rotated to move in conjunction with the thread on the outer surface of the second positioning rod 504. This causes the threaded cylinder 505 to move the internally rotating connecting member 506, which in turn moves the clamping plate 507 fixed at one end. Since one side of the clamping plate 507 is fixedly connected to one end of the support rod 508 and the guide rod 509, and the outer surfaces of the support rod 508 and the guide rod 509 are slidably disposed with the interior of the second positioning rod 504, when the clamping plate 507 moves, it can move the support rod 508 and the guide rod 509 fixed on one side along the direction of the second positioning rod 504, thereby clamping and fixing one side of the gear during the movement of the clamping plate 507.

[0050] Since the outer surface of the second positioning rod 504 is fixedly installed inside the worm gear 403, after the gear is clamped and installed, the worm gear 403 drives the second positioning rod 504 to rotate, so that the second positioning rod 504 drives the internally sliding support rod 508 and guide rod 509 to perform circumferential motion. This causes the support rod 508 and guide rod 509 to drive the clamping plate 507 fixed at one end to rotate, so that the clamping plate 507 drives the gear clamped and fixed on one side to rotate, so that the gear, in conjunction with the connecting key 503, drives the support shaft 502 to rotate, so that the support shaft 502 can rotate around the first positioning rod 501 as the center, thereby facilitating the adjustment of the circumferential angle of the gear and the adjustment of the detection surface of the gear.

[0051] Through the above technical solution, 1. By rotating the lifting component 2, the top-fixed support component 3 is moved, so that the support component 3 drives the internally rotating clamping component 5 to move upward, thereby causing the clamping component 5 to drive the internally clamped and fixed gear to move upward, so that the test surface of the gear abuts against the test end of the hardness tester 1 to complete the test. Then, the lifting component 2, together with the support component 3, drives the clamping component 5 to move downward, so that the clamping component 5 drives the gear to move downward. Then, the adjusting component 4 is rotated, so that it works with the clamping component 5 to drive the gear to rotate, and the above steps are repeated, thereby facilitating the adjustment of the test surface of the gear, eliminating the need for frequent disassembly and installation of the gear, and greatly improving the gear testing efficiency.

[0052] 2. By rotating the handle 405, the connecting shaft 404 fixed on one side is rotated, which in turn drives the worm gear 402 fixed at one end to rotate. When the worm gear 402 rotates, it drives the worm wheel 403 to rotate around the inside of the support base 401. The worm wheel 403 drives the second positioning rod 504 to rotate, which in turn drives the internally sliding support rod 508 and guide rod 509 to rotate. This causes the support rod 508 and guide rod 509 to rotate the clamping plate 507 fixed at one end, which in turn drives the gear fixed on one side to rotate. This causes the gear to engage with the connecting key 503 to drive the support shaft 502 to rotate, so that the support shaft 502 can rotate around the first positioning rod 501 as the center. This facilitates the adjustment of the circumferential angle of the gear and the adjustment of the detection surface of the gear.

[0053] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fixture for testing the surface hardness of gears after heat treatment, including a hardness tester (1), characterized in that: The hardness tester (1) is equipped with a lifting assembly (2), a support assembly (3), an adjustment assembly (4), and a clamping assembly (5); The lifting component (2) has its lifting end fixedly connected to the bottom end of the support component (3) so that the lifting component (2) drives the support component (3) to lift. The adjusting component (4) is rotatably disposed inside the clamping component (5) so that the adjusting component (4) drives the clamping component (5) to rotate, thereby adjusting the circumferential angle of the clamping component (5); The clamping assembly (5) has its outer surface rotated relative to the interior of the support assembly (3) so that the support assembly (3) drives the clamping assembly (5) to move, thereby moving the gear clamped inside the clamping assembly (5).

2. The fixture for testing the surface hardness of gears after heat treatment according to claim 1, characterized in that, The lifting assembly (2) includes a rotating seat (201), the bottom end of which is fixedly installed with the top end of the hardness tester (1), and a threaded seat (202) is rotatably provided on the top end of the rotating seat (201), and a lifting screw (203) is rotatably provided inside the threaded seat (202).

3. The fixture for testing the surface hardness of gears after heat treatment according to claim 2, characterized in that, The support assembly (3) includes a fixed base (301), the bottom end of which is fixedly connected to the top end of the lifting screw (203), and the top end of the fixed base (301) is fixedly connected to a mounting bracket (302).

4. The fixture for testing the surface hardness of gears after heat treatment according to claim 3, characterized in that, The adjustment assembly (4) includes a support base (401), one side of which is fixedly connected to one side of the mounting bracket (302). A worm gear (402) is rotatably provided inside the support base (401), and a worm wheel (403) is meshed with the surface of the worm gear (402).

5. The fixture for testing the surface hardness of gears after heat treatment according to claim 4, characterized in that, The adjustment assembly (4) also includes a connecting shaft (404), one end of which is fixedly connected to one end of the worm (402), and the other end of which is fixedly connected to a handle (405).

6. The fixture for testing the surface hardness of gears after heat treatment according to claim 3, characterized in that, The clamping assembly (5) includes a first positioning rod (501), the outer surface of the first positioning rod (501) is rotatably connected to the interior of the mounting bracket (302), one end of the first positioning rod (501) is fixedly connected to a support shaft (502), and the outer surface of the support shaft (502) is fixedly connected to a connecting key (503).

7. The fixture for testing the surface hardness of gears after heat treatment according to claim 4, characterized in that, The clamping assembly (5) also includes a second positioning rod (504). The outer surface of the second positioning rod (504) is fixedly installed inside the worm gear (403). A threaded cylinder (505) is threadedly connected to the outer surface of the second positioning rod (504). A connector (506) is rotatably arranged inside the threaded cylinder (505). A clamping plate (507) is fixedly connected to one end of the connector (506). A support rod (508) and a guide rod (509) are fixedly connected to one side of the clamping plate (507). The outer surfaces of the support rod (508) and the guide rod (509) are slidably arranged inside the second positioning rod (504).

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