A kind of machining hardness detection of gear ring

Abstract

The utility model relates to the technical field of hardness detection, concretely is a kind of gear ring processing hardness detection, including base, the upside of base is provided with bearing platform, and support leg is fixedly installed between bearing platform and base, the upside of bearing platform is provided with gear, the inside of gear is provided with shell, the upper end surface of base is fixedly installed with telescopic link, and one end of telescopic link extends to the upside of bearing platform and is fixedly connected with shell.The utility model is through the setting special quick fixing device, gear is stably installed in detection equipment, effectively prevent displacement and sway caused by vibration or external force in detection process, realize quick clamping and accurate positioning, clamping force is uniform and reliable, avoid damaging gear tooth surface, while greatly improve clamping efficiency, by ensuring the height stability of gear in detection process, the precision and repeatability of hardness measurement have been significantly improved, meet the demand of batch detection and high-precision quality control, have good practicality and popularization value.

Description

Technical Field

[0001] This utility model relates to the field of hardness testing technology, and in particular to a method for testing the hardness of gear ring machining. Background Technology

[0002] Gears are toothed mechanical parts that mesh with each other. Plastic gears are a type of gear used in various industries such as micro motors, electronic products, auto parts, home appliances, office supplies, toys, and handicrafts. For example, different gear combinations are used in products such as car rearview mirrors, printers, fax machines, toy mechanisms, instruments, medical devices, vacuum cleaners, and automatic coffee machines. In order to ensure the quality of plastic gears and prevent defective products from being released to the outside world, gears are usually randomly sampled during the production process. Various indicators of the gears are tested, and testing devices are used for this purpose.

[0003] In the gear hardness testing process, in order to ensure the accuracy and reliability of the measurement data, the gear must be precisely positioned and firmly fixed. If the clamping mechanism is unstable or not firmly fixed, the gear is prone to slight displacement or shaking due to external force or indenter impact during the testing process, resulting in indentation position deviation and inaccurate depth measurement, which seriously affects the testing accuracy and may even cause misjudgment. Especially for gears used in high-precision transmission systems, even small testing errors may affect their subsequent assembly and service life. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a hardness detection method for gear ring machining.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gear ring machining hardness tester, comprising a base, a support platform on the upper side of the base, a support leg fixedly installed between the support platform and the base, a gear on the upper side of the support platform, a housing on the inner side of the gear, a telescopic rod fixedly installed on the upper end face of the base, one end of the telescopic rod extending to the upper side of the support platform and fixedly connected to the housing, a wedge block 1 inside the housing, a fixing rod 1 fixedly installed on the lower end face of the wedge block 1, one end of the fixing rod 1 fixedly connected to the support platform, a spring 1 fixedly installed between the wedge block 1 and the lower end face of the inner surface of the housing, a wedge block 2 correspondingly provided on the upper side of the wedge block 1, a spring 2 fixedly installed between the wedge block 2 and the inner wall of the housing, a fixing rod 2 fixedly installed on the outer side of the wedge block 2, an inner support plate on the outer side of the housing, one end of the fixing rod 2 extending to the outer side of the housing and fixedly connected to the inner support plate, and a lower pressure plate fixedly installed on the upper end of the inner support plate.

[0006] The fixed rod one, wedge one, wedge two, spring one, spring two, fixed rod two, inner support plate and lower pressure plate are each provided in three sets, and are arranged in a ring-shaped dispersion.

[0007] The housing has a transmission plate inside, and the three sets of wedges are all fixedly connected to the transmission plate. An airbag is fixedly installed between the transmission plate and the upper inner surface of the housing.

[0008] The outer shell has an inner cavity, and the airbag is connected to the inner cavity.

[0009] A piston plate is slidably connected inside the inner cavity, and a slide rod is fixedly installed on the outer side of the piston plate. One end of the slide rod extends to the outer side of the outer shell and is fixedly connected to the inner support plate.

[0010] The inner cavity, piston plate, slide rod and connecting pipe are provided in three sets, and are arranged in a ring. All three sets of connecting pipes are connected to the airbag.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses a dedicated quick-fixing device to securely install gears in the testing equipment, effectively preventing displacement and shaking caused by vibration or external force during the testing process. It achieves rapid clamping and precise positioning, with uniform and reliable clamping force, avoiding damage to the gear tooth surface. At the same time, it significantly improves clamping efficiency. By ensuring the high stability of the gear during the testing process, it significantly improves the accuracy and repeatability of hardness measurement, meeting the needs of batch testing and high-precision quality control. It has good practicality and promotional value. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is an overall structural view of the present invention; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 For the present utility model Figure 2 Enlarged diagram of point A in the middle.

[0014] Explanation of reference numerals in the attached figures: 1. Base; 2. Support leg; 3. Platform; 4. Telescopic rod; 5. Outer shell; 6. Gear; 7. Fixing rod one; 8. Spring one; 9. Wedge one; 10. Wedge two; 11. Spring two; 12. Fixing rod two; 13. Inner support plate; 14. Lower pressure plate; 15. Transmission plate; 16. Airbag; 17. Inner cavity; 18. Piston plate; 19. Slide rod; 20. Connecting pipe. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1 to 3 This utility model provides a technical solution: A gear ring machining hardness tester includes a base 1, a support platform 3 on the upper side of the base 1, a support leg 2 fixedly installed between the support platform 3 and the base 1, a gear 6 on the upper side of the support platform 3, a housing 5 inside the gear 6, a telescopic rod 4 fixedly installed on the upper end face of the base 1, one end of the telescopic rod 4 extending to the upper side of the support platform 3 and fixedly connected to the housing 5, a wedge 9 inside the housing 5, a fixing rod 7 fixedly installed on the lower end face of the wedge 9, one end of the fixing rod 7 fixedly connected to the support platform 3, a spring 8 fixedly installed between the wedge 9 and the lower end face of the housing 5, a second wedge 10 correspondingly installed on the upper side of the wedge 9, and a second spring 11 fixedly installed between the second wedge 10 and the inner wall of the housing 5. A fixing rod 12 is fixedly installed on the outer side of the wedge 2 10, and an inner support plate 13 is provided on the outer side of the outer shell 5. One end of the fixing rod 12 extends to the outer side of the outer shell 5 and is fixedly connected to the inner support plate 13. A lower pressure plate 14 is fixedly installed on the upper end of the inner support plate 13.

[0017] The fixing rod 17, wedge 19, wedge 210, spring 18, spring 21, fixing rod 212, inner support plate 13 and the lower pressure plate are each provided in three sets, and are arranged in a ring-shaped dispersion.

[0018] Gear 6 is placed on the support 3 and fitted onto the outer shell 5. Then, the telescopic rod 4 is activated to drive the outer shell 5 to descend. As the outer shell 5 descends, wedge 19 is fixedly connected to the support 3 via the fixing rod 17. Therefore, wedge 19 rises inside the outer shell 5. Wedge 19 and wedge 210 collide and slide against each other, thereby transmitting power to wedge 210, causing wedge 210 to move outward and compress spring 211. Through fixing rod 212, the inner support plate 13 is driven to move outward. The three sets of inner support plates 13 move outward to internally support and fix gear 6. Then, as the outer shell 5 descends, the inner support plate 13 descends synchronously. The lower pressure plate 14 on the inner support plate 13 simultaneously presses down and fixes gear 6.

[0019] The housing 5 has a transmission plate 15 inside, and three sets of wedges 9 are fixedly connected to the transmission plate 15. An airbag 16 is fixedly installed between the transmission plate 15 and the upper inner surface of the housing 5.

[0020] The outer shell 5 has an inner cavity 17 inside, and the airbag 16 is connected to the inner cavity 17.

[0021] A piston plate 18 is slidably connected inside the inner cavity 17. A slide rod 19 is fixedly installed on the outer side of the piston plate 18. One end of the slide rod 19 extends to the outer side of the outer shell 5 and is fixedly connected to the inner support plate 13.

[0022] The inner cavity 17, piston plate 18, slide rod 19 and connecting pipe 20 are provided in three sets and arranged in a ring. All three sets of connecting pipes 20 are connected to the airbag 16.

[0023] The transmission plate 15, which is fixed to the wedge block 9, rises relative to the lowering of the outer shell 5, which is equivalent to rising inside the outer shell 5. This compresses the airbag 16. The gas inside the airbag 16 enters the inner cavity 17 through the connecting pipe 20, causing the piston plate 18 to slide outward inside the inner cavity 17. The piston plate 18 is then driven to move outward through the slide rod 19. This, in conjunction with the fixing rod 12, synchronously drives the inner support plate 13 to move, thus internally supporting and fixing the gear 6.

[0024] In the hardness testing of gear 6, to ensure the accuracy and reliability of the measurement data, gear 6 must be precisely positioned and firmly fixed. If the clamping mechanism is unstable or the fixing is not secure, gear 6 is prone to slight displacement or shaking due to external force or indenter impact during the testing process, resulting in indentation position deviation and inaccurate depth measurement, which seriously affects the testing accuracy and may even cause misjudgment. Especially for gear 6 used in high-precision transmission systems, even a small testing error may affect its subsequent assembly and service life. Therefore, this utility model sets up a special quick fixing device to firmly install gear 6 in the testing equipment, effectively preventing displacement and shaking caused by vibration or external force during the testing process, realizing quick clamping and precise positioning, uniform and reliable clamping force, avoiding damage to the tooth surface of gear 6, and greatly improving clamping efficiency. By ensuring the high stability of gear 6 during the testing process, the accuracy and repeatability of hardness measurement are significantly improved, meeting the needs of batch testing and high-precision quality control, and has good practicality and promotion value.

[0025] Working principle: Gear 6 is placed on the support 3 and fitted onto the outer shell 5. Then, the telescopic rod 4 is activated to drive the outer shell 5 to descend. As the outer shell 5 descends, wedge 19 is fixedly connected to the support 3 via the fixing rod 17. Therefore, wedge 19 rises inside the outer shell 5. Wedge 19 and wedge 20 collide and slide against each other, thereby transmitting power to wedge 20, causing it to move outward and compress spring 21. This drives the inner support plate 13 to move outward via the fixing rod 212. The three sets of inner support plates 13 move outward to internally support and fix gear 6. Then, as the outer shell 5 descends, it synchronously drives the inner support plate 13 to descend. The lower pressure plate 14 on the inner support plate 13 simultaneously presses down and fixes gear 6. The transmission plate 15, which is fixed to the wedge block 9, rises relative to the lowering of the outer shell 5, which is equivalent to rising inside the outer shell 5. This compresses the airbag 16. The gas inside the airbag 16 enters the inner cavity 17 through the connecting pipe 20, causing the piston plate 18 to slide outward inside the inner cavity 17. The piston plate 18 is then driven to move outward through the slide rod 19. This, in conjunction with the fixing rod 12, synchronously drives the inner support plate 13 to move, thus internally supporting and fixing the gear 6.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A gear ring machining hardness tester, comprising a base (1), wherein a support platform (3) is provided on the upper side of the base (1), and a support leg (2) is fixedly installed between the support platform (3) and the base (1), characterized in that: A gear (6) is provided on the upper side of the support platform (3), and a housing (5) is provided on the inner side of the gear (6). A telescopic rod (4) is fixedly installed on the upper end face of the base (1). One end of the telescopic rod (4) extends to the upper side of the support platform (3) and is fixedly connected to the housing (5). A wedge block (9) is provided inside the housing (5). A fixing rod (7) is fixedly installed on the lower end face of the wedge block (9). One end of the fixing rod (7) is fixedly connected to the support platform (3). A spring (8) is fixedly installed between the wedge block (9) and the lower end face of the inner side of the housing (5). A wedge block (10) is provided on the upper side of the wedge block (9). A spring (11) is fixedly installed between the wedge block (10) and the inner wall of the housing (5). A fixing rod (12) is fixedly installed on the outer side of the wedge (10), and an inner support plate (13) is provided on the outer side of the outer shell (5). One end of the fixing rod (12) extends to the outer side of the outer shell (5) and is fixedly connected to the inner support plate (13). A lower pressure plate (14) is fixedly installed on the upper end of the inner support plate (13).

2. The method for testing the hardness of gear ring machining according to claim 1, characterized in that: The fixed rod one (7), wedge one (9), wedge two (10), spring one (8), spring two (11), fixed rod two (12), inner support plate (13) and the pressing plate are all provided in three sets, and are arranged in a ring-shaped dispersion.

3. The method for testing the hardness of gear ring machining according to claim 2, characterized in that: The housing (5) is provided with a transmission plate (15), and the three sets of wedges (9) are fixedly connected to the transmission plate (15). An airbag (16) is fixedly installed between the transmission plate (15) and the upper inner surface of the housing (5).

4. The gear ring machining hardness test according to claim 3, characterized in that: The outer shell (5) has an inner cavity (17) inside, and the airbag (16) is connected to the inner cavity (17).

5. The method for testing the hardness of gear ring machining according to claim 4, characterized in that: A piston plate (18) is slidably connected inside the inner cavity (17), and a slide rod (19) is fixedly installed on the outer side of the piston plate (18). One end of the slide rod (19) extends to the outer side of the outer shell (5) and is fixedly connected to the inner support plate (13).

6. The method for testing the hardness of gear ring machining according to claim 5, characterized in that: The inner cavity (17), piston plate (18), slide rod (19) and connecting pipe (20) are provided in three sets and are arranged in a ring. All three sets of connecting pipes (20) are connected to the airbag (16).

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