A flaw detection device for gear products

Abstract

This utility model relates to the field of gear flaw detection technology, and provides a flaw detection device for finished gears, including a housing; the housing includes a main chamber and a secondary chamber fixedly installed on the bottom surface of the main chamber; a fixing part is slidably arranged on the bottom surface of the secondary chamber; the fixing part includes a U-shaped rod; a fixing block that slides and engages with a shaft hole is rotatably arranged at the end of the U-shaped rod; a fixing rail that slides and engages with a keyway is fixed on the peripheral side of the fixing block; a sleeve is fixedly arranged through the inner wall of the main chamber; a groove that slides and engages with the fixing rail is opened on the inner wall of the sleeve; a rotating shaft coaxial with the sleeve is rotatably arranged on the other opposite side of the main chamber; and retaining rings are provided at the ends of the sleeve and the rotating shaft. This device solves the problems of existing fixtures easily damaging the gear surface and easily shifting during rotation, improving the stability of the device during the detection process and the accuracy of the detection results.

Description

Technical Field

[0001] This utility model relates to the field of gear flaw detection technology, and more specifically, it relates to a flaw detection device for finished gear products. Background Technology

[0002] Gears are core components for transmitting power and motion, and their quality directly affects the reliability and safety of the entire equipment or system. Therefore, before leaving the factory, gears need to be inspected using flaw detection equipment to ensure they meet stringent quality standards.

[0003] The utility model patent with announcement number CN218601219U discloses a flaw detection device, which includes a flaw detection component and a clamping fixture. Although this detection device can clamp the gear through the threaded connection between the threaded rod and the fixed rod, it is easy to cause crush damage to the surface of the gear when clamping it, and it is also easy to deviate during rotation, thus affecting the accuracy of the detection results. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a flaw detection device for finished gear products that can avoid crushing and displacement.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A flaw detection device for finished gears includes a housing; the housing includes a main chamber and a secondary chamber fixedly installed on the bottom surface of the main chamber; a conveying part for conveying the finished gear is fixedly installed on the bottom surface of the main chamber; a shaft hole is formed on the surface of the finished gear; a keyway is formed on the inner wall of the shaft hole; a fixing part is slidably disposed on the bottom surface of the secondary chamber; the fixing part includes a U-shaped rod; a fixing block that slides and engages with the shaft hole is rotatably disposed at the end of the U-shaped rod; a fixing rail that slides and engages with the keyway is fixed on the peripheral side of the fixing block; a sleeve is fixedly disposed through the inner wall of the main chamber; the fixing block slides and engages with the inner wall of the sleeve; a sliding groove that slides and engages with the fixing rail is formed on the inner wall of the sleeve; a rotating shaft coaxial with the sleeve is rotatably disposed on the other opposite side of the main chamber; a retaining ring is provided at the end of both the sleeve and the rotating shaft.

[0006] The present invention is further configured such that: a trapezoidal platform is fixed to the other end of the U-shaped rod and slides with the bottom surface of the auxiliary chamber; an electric push rod is fixed to the inner wall of the auxiliary chamber; and the output end of the electric push rod is fixedly connected to the trapezoidal platform.

[0007] The present invention is further configured such that: a T-shaped clearance groove is provided between the main chamber and the auxiliary chamber; the U-shaped rod is slidably engaged with the T-shaped clearance groove; a guide groove is provided on the peripheral side of the sleeve; and the U-shaped rod is slidably engaged with the guide groove.

[0008] The present invention is further configured such that: the inner wall of the retaining ring is provided with a slot adapted to the fixed rail; one retaining ring is rotatably connected to the sleeve; and the other retaining ring is fixedly connected to the rotating shaft.

[0009] The present invention is further configured such that: the conveying part includes a feeding chamber connected in communication with the feeding chamber and a storage cylinder fixedly installed on the side of the feeding chamber; the feeding chamber is adapted to the finished gear; a U-shaped plate is slidably arranged in the feeding chamber; the inner bottom surface of the U-shaped plate is evenly provided with limiting teeth adapted to the finished gear; a ball-head push rod is fixed on the bottom surface of the U-shaped plate; a return spring sleeved on the ball-head push rod is fixed on the inner top surface of the secondary chamber; the ball-head push rod is slidably engaged with the trapezoidal platform.

[0010] The present invention is further configured such that: a guide rod is fixed on the bottom surface of the storage cylinder and slides with the shaft hole; a guide rail is fixed on the periphery of the guide rod and slides with the keyway; an annular plate is slidably arranged between the inner walls of the storage cylinder; and a connecting spring sleeved on the guide rod is fixedly connected between the annular plate and the bottom surface of the storage cylinder.

[0011] The present invention is further configured such that: a support plate is fixed to the outer wall of the box; a servo motor is fixed to the surface of the support plate; and the output end of the servo motor is fixedly connected to the rotating shaft.

[0012] The present invention is further configured such that: a detector is fixed on the upper surface of the box; and a detection probe is electrically connected to the bottom surface of the detector.

[0013] The advantages of this utility model include: 1. This utility model achieves the fixation and limiting of the finished gear by setting a fixing part, sleeve and retaining ring, which replaces the traditional pressing and fixing method, avoids damage to the surface of the finished gear, and improves the stability of the testing process and the accuracy of the test results.

[0014] 2. By setting up a fixing part, a ball-head push rod and a U-shaped plate, this utility model realizes the synchronous operation of the gear product's rising process and fixing process, optimizes the inspection process and improves work efficiency.

[0015] 3. By setting up a conveyor unit, this utility model realizes the automatic feeding process of finished gears, saving operation time and labor costs, and further improving work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a flaw detection device for finished gears.

[0018] Figure 2 for Figure 1 A schematic diagram of the internal assembly.

[0019] Figure 3 for Figure 2 A frontal sectional view.

[0020] Figure 4 This is a cross-sectional view of the assembly structure of the conveying part of this utility model.

[0021] Figure 5 This is a schematic diagram of the structure of the finished gear of this utility model.

[0022] Figure 6 This is a schematic diagram of the fixing part of this utility model.

[0023] Figure 7 This is a schematic diagram of the sleeve of this utility model.

[0024] Figure 8 This is a schematic diagram of the retaining ring of this utility model.

[0025] Figure 9 This is a schematic diagram of the assembly structure of the U-shaped plate and the ball-head push rod of this utility model.

[0026] Figure 10 This is a cross-sectional view of the internal structure of the storage cylinder of this utility model.

[0027] In the diagram: 1. Housing; 2. Main chamber; 3. Secondary chamber; 4. Finished gear; 5. Conveying section; 6. Shaft hole; 7. Keyway; 8. Fixing section; 9. U-shaped rod; 10. Fixing block; 11. Fixing rail; 12. Sleeve; 13. Slide groove; 14. Rotating shaft; 15. Retaining ring; 16. Trapezoidal platform; 17. Electric push rod; 18. T-shaped clearance groove; 19. Guide groove; 20. Slot; 21. Feeding chamber; 22. Storage cylinder; 23. U-shaped plate; 24. Ball-head push rod; 25. Guide rod; 26. Guide rail; 27. Annular plate; 28. Connecting spring; 29. ​​Support plate; 30. Servo motor; 31. Detector; 32. Detection probe. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Example 1, please refer to Figure 1-10 The present invention provides the following technical solution: Specifically, it refers to a flaw detection device for finished gear products, including a housing 1; the housing 1 includes a main chamber 2 and a secondary chamber 3 fixedly installed on the bottom surface of the main chamber 2; a conveying part 5 for conveying finished gear products 4 is fixedly installed on the bottom surface of the main chamber 2; a shaft hole 6 is opened on the surface of the finished gear products 4; a keyway 7 is opened on the inner wall of the shaft hole 6; A fixing part 8 is slidably provided on the bottom surface of the auxiliary chamber 3; the fixing part 8 includes a U-shaped rod 9; a fixing block 10 that slides with the shaft hole 6 is rotatably provided at the end of the U-shaped rod 9; a fixing rail 11 that slides with the keyway 7 is fixed on the periphery of the fixing block 10; A sleeve 12 is fixed through the inner wall of the main chamber 2; the fixing block 10 slides with the inner wall of the sleeve 12; the inner wall of the sleeve 12 is provided with a sliding groove 13 that slides with the fixed rail 11; a rotating shaft 14 coaxial with the sleeve 12 is rotatably provided on the other opposite side of the main chamber 2; a retaining ring 15 is provided at the end of both the sleeve 12 and the rotating shaft 14.

[0032] The specific application of this embodiment is as follows: When fixing the finished gear 4, the U-shaped rod 9 drives the fixing block 10 and the fixing rail 11 to move along the sliding groove 13 on the inner wall of the sleeve 12 towards the finished gear 4, so that the fixing block 10 and the fixing rail 11 pass through the sleeve 12 and are inserted into the retaining ring 15 at the end of the sleeve 12, the shaft hole 6 of the finished gear 4 and the retaining ring 15 at the end of the rotating shaft 14 in sequence, thereby fixing and limiting the finished gear 4.

[0033] When it is necessary to release the gear product 4 from its fixation, the U-shaped rod 9 drives the fixing block 10 and the fixing rail 11 to move away from the gear product 4 along the sliding groove 13 on the inner wall of the sleeve 12. This causes the fixing block 10 and the fixing rail 11 to sequentially exit the retaining ring 15 at the end of the rotating shaft 14, the shaft hole 6 of the gear product 4, and the retaining ring 15 at the end of the sleeve 12, thereby releasing the gear product 4 from its fixation and limiting position. In this embodiment, the fixing part 8, the sleeve 12, and the retaining ring 15 cooperate to achieve the fixation and limiting of the gear product 4, replacing the traditional pressing and fixing method. This avoids damage to the surface of the gear product 4 and improves the stability of the testing process and the accuracy of the testing results.

[0034] Example 2, please refer to Figure 1-10 This second embodiment is an improvement on the first embodiment as follows: Specifically: the other end of the U-shaped rod 9 is fixed with a trapezoidal platform 16 that slides with the bottom surface of the auxiliary chamber 3; an electric push rod 17 is fixed to the inner wall of the auxiliary chamber 3; the output end of the electric push rod 17 is fixedly connected to the trapezoidal platform 16.

[0035] A T-shaped clearance groove 18 is provided between the main chamber 2 and the auxiliary chamber 3; the U-shaped rod 9 is slidably engaged with the T-shaped clearance groove 18; a guide groove 19 is provided on the side of the sleeve 12; the U-shaped rod 9 is slidably engaged with the guide groove 19.

[0036] The inner wall of the retaining ring 15 is provided with a slot 20 that is adapted to the fixed rail 11; one retaining ring 15 is rotatably connected to the sleeve 12; the other retaining ring 15 is fixedly connected to the rotating shaft 14.

[0037] The conveying unit 5 includes a feeding chamber 21 connected in communication with the feeding chamber 21 and a storage cylinder 22 fixedly installed on the side of the feeding chamber 21; the feeding chamber 21 is adapted to the finished gear 4; a U-shaped plate 23 is slidably arranged in the feeding chamber 21; the bottom surface of the U-shaped plate 23 is evenly provided with limiting teeth adapted to the finished gear 4; a ball-head push rod 24 is fixed on the bottom surface of the U-shaped plate 23; a return spring sleeved on the ball-head push rod 24 is fixed on the top surface of the secondary chamber 3; the ball-head push rod 24 is slidably engaged with the trapezoidal platform 16.

[0038] A specific application of this embodiment is as follows: When fixing the finished gear 4, the electric push rod 17 pushes the trapezoidal platform 16, causing the trapezoidal platform 16 to drive the U-shaped rod 9, the fixing block 10, and the fixing rail 11 to slide along the T-shaped clearance groove 18 in the sleeve 12 towards the ball head push rod 24. At the same time, under the pressure of the inclined surface of the trapezoidal platform 16, the ball head push rod 24 drives the U-shaped plate 23 to move upward along the feeding cavity 21, causing the fixing block 10 to move towards the retaining ring 15 during the rising of the finished gear 4. When the finished gear 4 rises to the same height as the retaining ring 15, the ball head push rod 24 enters the smooth section, causing the finished gear 4 to stop. At this time, the fixing part 8 continues to move, causing the fixing block 10 and the fixing rail 11 to continue moving until the fixing block 10 and the fixing rail 11 are inserted into the finished gear 4 and the retaining ring 15, thereby fixing and limiting the finished gear 4.

[0039] When the gear assembly 4 is released from its fixation, the electric push rod 17 retracts, causing the trapezoidal platform 16 to drive the U-shaped rod 9, the fixing block 10, and the fixing rail 11 to slide along the T-shaped clearance groove 18 within the sleeve 12 in a direction away from the ball-head push rod 24, until the fixing block 10 and the fixing rail 11 exit the gear assembly 4 and the retaining ring 15, thereby releasing the fixation and limiting of the gear assembly 4. This embodiment, through the cooperation between the fixing part 8, the ball-head push rod 24, and the U-shaped plate 23, achieves the synchronization of the gear assembly 4's rising and fixing processes, optimizing the inspection process and improving work efficiency.

[0040] Example 3, please refer to Figure 1-10 This third embodiment is an improvement on the first embodiment as follows: Specifically: a guide rod 25 is fixed on the bottom surface of the storage cylinder 22 and slides with the shaft hole 6; a guide rail 26 is fixed on the periphery of the guide rod 25 and slides with the keyway 7; the finished gear 4 is evenly sleeved on the guide rod 25; an annular plate 27 is slidably arranged between the inner walls of the storage cylinder 22; a connecting spring 28 sleeved on the guide rod 25 is fixedly connected between the annular plate 27 and the bottom surface of the storage cylinder 22.

[0041] A support plate 29 is fixed to the outer wall of the housing 1; a servo motor 30 is fixed to the surface of the support plate 29; the output end of the servo motor 30 is fixedly connected to the rotating shaft 14.

[0042] A detector 31 is fixed on the upper surface of the housing 1; a detection probe 32 is electrically connected to the bottom surface of the detector 31.

[0043] One specific application of this embodiment is as follows: During feeding, the ball-head push rod 24 is pressed against the inner bottom surface of the secondary chamber 3 under the reset force of the reset spring. Several gear products 4 are sleeved on the guide rod 25, so that the keyways 7 of all gear products 4 are kept at a specified angle for conveying. During feeding, the connecting spring 28 is in a compressed state. During feeding, under the reset force of the connecting spring 28, the annular plate 27 pushes the gear products 4, pushing them into the feeding chamber 21 and pressing them against each other, so that the teeth of the gear products 4 mesh with the limiting teeth on the U-shaped plate 23, thereby keeping the keyways 7 of the gear products 4 at a specified angle for feeding.

[0044] After the test is completed, the trapezoidal platform 16 moves away from the ball head push rod 24, so that the ball head push rod 24 is reset under the reset force of the reset spring.

[0045] Simultaneously, after the fixing process is completed, the servo motor 30 drives the rotating shaft 14 to rotate the retaining ring 15 and the finished gear 4 one revolution, thereby enabling the detection probe 32 to perform flaw detection on the finished gear 4. It should be noted that the specific models and specifications of the detector 31, detection probe 32, and servo motor 30 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts existing technology in this field and will not be elaborated further here. This embodiment, by setting up the conveyor unit 5, realizes the automatic feeding process of the finished gear 4, saving operation time and labor costs, and further improving work efficiency.

[0046] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0047] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0048] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0049] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0050] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A device for the detection of flaws in gear finished products, comprising a box (1); characterized by the fact that: The housing (1) includes a main chamber (2) and a secondary chamber (3) fixedly installed on the bottom surface of the main chamber (2); a conveying part (5) for conveying finished gears (4) is fixedly installed on the bottom surface of the main chamber (2); a shaft hole (6) is opened on the surface of the finished gears (4); a keyway (7) is opened on the inner wall of the shaft hole (6). The bottom surface of the auxiliary chamber (3) is slidably provided with a fixing part (8); the fixing part (8) includes a U-shaped rod (9); the end of the U-shaped rod (9) is rotatably provided with a fixing block (10) that slides with the shaft hole (6); the peripheral side of the fixing block (10) is fixed with a fixing rail (11) that slides with the keyway (7). A sleeve (12) is fixed through the inner wall of the main chamber (2); the fixing block (10) slides with the inner wall of the sleeve (12); the inner wall of the sleeve (12) is provided with a sliding groove (13) that slides with the fixing rail (11); a rotating shaft (14) coaxial with the sleeve (12) is rotatably provided on the other opposite side of the main chamber (2); a retaining ring (15) is provided at the end of both the sleeve (12) and the rotating shaft (14).

2. A device for detecting flaws in a finished gear as claimed in claim 1, wherein: The other end of the U-shaped rod (9) is fixed with a trapezoidal platform (16) that slides with the bottom surface of the sub-chamber (3); an electric push rod (17) is fixed on the inner wall of the sub-chamber (3); the output end of the electric push rod (17) is fixedly connected to the trapezoidal platform (16).

3. A device for detecting flaws in a finished gear as claimed in claim 2, wherein: A T-shaped clearance groove (18) is provided between the main chamber (2) and the auxiliary chamber (3); the U-shaped rod (9) is slidably engaged with the T-shaped clearance groove (18); a guide groove (19) is provided on the circumferential side of the sleeve (12); the U-shaped rod (9) is slidably engaged with the guide groove (19).

4. A device for detecting flaws in a finished gear according to claim 3, characterized in that: The inner wall of the retaining ring (15) is provided with a slot (20) that is compatible with the fixed rail (11); one retaining ring (15) is rotatably connected to the sleeve (12); the other retaining ring (15) is fixedly connected to the rotating shaft (14).

5. A device for detecting flaws in a finished gear as claimed in claim 4, wherein: The conveying unit (5) includes a feeding chamber (21) connected in communication with the feeding chamber (21) and a storage cylinder (22) fixedly installed on the side of the feeding chamber (21); the feeding chamber (21) is adapted to the finished gear (4); a U-shaped plate (23) is slidably arranged in the feeding chamber (21); the bottom surface of the U-shaped plate (23) is evenly provided with limiting teeth adapted to the finished gear (4); a ball-head push rod (24) is fixed on the bottom surface of the U-shaped plate (23); a return spring sleeved on the ball-head push rod (24) is fixed on the inner top surface of the secondary chamber (3); the ball-head push rod (24) is slidably engaged with the trapezoidal platform (16).

6. A device for detecting flaws in a finished gear as set forth in claim 5, wherein: The bottom surface of the storage cylinder (22) is fixed with a guide rod (25) that slides with the shaft hole (6); the periphery of the guide rod (25) is fixed with a guide rail (26) that slides with the keyway (7); an annular plate (27) is slidably arranged between the inner walls of the storage cylinder (22); a connecting spring (28) sleeved on the guide rod (25) is fixedly connected between the annular plate (27) and the bottom surface of the storage cylinder (22).

7. A device for detecting flaws in a finished gear according to claim 6, characterized in that: The outer wall of the housing (1) is fixed with a support plate (29); a servo motor (30) is fixed on the surface of the support plate (29); the output end of the servo motor (30) is fixedly connected to the rotating shaft (14).

8. The flaw detection device for finished gears according to claim 7, characterized in that: The upper surface of the housing (1) is fixed with a detector (31); the bottom surface of the detector (31) is electrically connected with a detection probe (32).

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