Gear tooth surface crack detection structure

Abstract

The utility model relates to the technical field of gear crack detection, discloses a gear tooth surface crack detection structure, and solves the problem that an existing detection mechanism cannot automatically turn over a gear angle well. Through the rotating mechanism, the fastening mechanism, the detection probe and the turning mechanism, an electric push rod pushes a half rack to horizontally move towards the right side, and the half rack pushes a half gear to rotate by 90 degrees, so that the half gear drives a rotating plate to rotate by 90 degrees around a shaft at the bottom, and the upper end of the rotating plate rotates by 90 degrees around the shaft through the fastening mechanism connected with a connecting shaft; when the rotating plate rotates downwards, the torsion spring resets, so that the connecting shaft is driven to rotate by 180 degrees, the fastening mechanism is driven to rotate by 180 degrees, a gear on the fastening mechanism is parallel to the transverse plate, switching of the gear from the vertical state to the horizontal state is completed, the number of times of manual operation is reduced, and the working efficiency is improved. And the position of the detection probe does not need to be adjusted.

Description

Technical Field

[0001] This utility model relates to the field of gear crack detection technology, specifically a gear tooth surface crack detection structure. Background Technology

[0002] During the production process, due to processing errors or collisions during transportation, gears may develop cracks of varying degrees on their surfaces. Some cracks are not visible to the naked eye and require specialized equipment for tooth surface inspection. First, the gear to be inspected is installed at the lower end of the probe. Then, the ultrasonic probe inspects one side of the tooth surface. Afterward, the gear is manually removed, and the tooth surface is replaced for inspection again. This ensures that gear tooth surface cracks can be accurately detected, thus improving the quality of gears leaving the factory.

[0003] A search revealed a Chinese patent publication number (CN210269830U) that discloses a gear crack detection device. The device includes an operating platform with a crack detection instrument fixed to its top. A first support rod is fixed to the right side of the crack detection instrument, and a first bolt is connected to the front of the first support rod. A first adjustment rod is connected to the top of a second support rod, and a groove is formed on the right side of the first support rod. A second bolt is provided on the upper surface of a first operating panel, and a mounting rod is fixed to the right side of the first operating panel. A second operating panel is fixed to the top of the mounting rod. A second suction shaft is provided inside the bearing, and a suction cup is provided on the left surface of the second suction shaft. The left side of the suction cup is connected to the gear block to be detected. This gear crack detection device facilitates adjustment of the probe angle, easy fixing of the gear block to be detected, and thorough detection of cracks on the gear surface.

[0004] Although the aforementioned patent facilitates the fixation of the gear block to be tested by the suction cup, the aforementioned gear crack detection structure still has the following problems: the aforementioned gear crack detection structure requires the sliding base to be moved first during gear flipping, and then the gear is disassembled and placed on the shelf. Since the shelf is different from the original detection position, the position of the probe needs to be readjusted again. Completing one gear detection requires adjusting multiple devices, which consumes a lot of time. It cannot quickly change the gear from a vertical state to a horizontal state. Furthermore, the aforementioned single suction cup fixing component is not firm enough when rotating, which can easily cause the gear to fall off. The fixing component that uses the hollow part of the gear to clamp cannot be adapted to gears with different hollow diameters.

[0005] To address the aforementioned issues, an innovative design was developed based on the existing gear tooth surface crack detection structure. Utility Model Content

[0006] The purpose of this invention is to provide a gear tooth surface crack detection structure. By using this device, the problem that existing detection mechanisms cannot automatically rotate the gear angle effectively is solved.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a gear tooth surface crack detection structure, comprising an operating table and a lifting assembly. The upper end of the operating table is equipped with a comprehensive crack detector for data reception and comparison. A robotic arm for adjusting angle and height is located on the right side of the comprehensive crack detector, and a detection probe is located at the bottom of the robotic arm. A support assembly is located on the left side of the lifting assembly, and the support assembly includes a vertical plate located on the left side of the lifting assembly. A horizontal plate is connected to the bottom of the vertical plate, and a flipping mechanism is located at the upper end of the horizontal plate. The flipping mechanism includes an electric push rod located at the upper end of the horizontal plate, and a half-rack is connected to the right side of the electric push rod. A half-gear meshes with the upper end of the half-rack, and the shaft of the half-gear passes through the bottom of the rotating plate.

[0008] Furthermore, the bottom of the operating table is provided with four adjustable legs, and the height of the adjustable legs can be adjusted by bolts. The robotic arm is a three-fold type.

[0009] Furthermore, the operating table surface is provided with two sets of lifting components, and the left lifting component is fixed to the upper end of the sliding base, and the sliding base is slidably connected to the operating table surface, while the right lifting component is fixed to the operating table surface.

[0010] Furthermore, the lifting assembly includes a slide rod disposed on the upper part of the operating table, and the highest points of the two sets of slide rods are at the same height. A sleeve is sleeved on the outside of the slide rod, and a locking element is threaded to one side of the sleeve. A baffle is fixed to the upper end of the slide rod. A rotating mechanism is connected to the outside of the sleeve on the left side, and a vertical plate is connected to the outside of the sleeve on the right side.

[0011] Furthermore, the rotating mechanism includes an I-shaped plate disposed outside the sleeve, and a motor is disposed inside the I-shaped plate. The output end of the motor is connected to a turntable, and multiple evenly distributed suction cups are disposed on the other side surface of the turntable.

[0012] Furthermore, a connecting shaft is provided at the upper end of the rotating plate, and a fastening mechanism is rotatably connected to the left side of the connecting shaft. The fastening mechanism includes a disc rotatably connected to the outside of the connecting shaft. Four extrusion plates are provided on the other side of the disc. The extrusion plates are arc-shaped, and the bottom of the extrusion plates can move within a preset slide rail of the disc. A spring is provided inside the preset slide rail of the disc, and the spring is connected to the outside of the bottom of the extrusion plate. The four extrusion plates are unfolded in the initial state.

[0013] Furthermore, a toothed block is provided on the right side of the half rack, a half-circle toothed block is provided on the outside of the half gear, the rotating shaft at the bottom of the rotating plate is fixed to the outside of the vertical plate through an extension plate, and a notch is reserved at the bottom of the vertical plate for the half rack to move.

[0014] Furthermore, a torsion spring is provided on the outside of the connecting shaft, and in the initial state, the disk of the torsion spring is located above the rotating plate, and in the initial state, the disk of the torsion spring is perpendicular to the rotating plate. An inclined block is fixed on the left side of the vertical plate, and the inclined block is in contact with the connecting shaft at the upper end of the vertical rotating plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention proposes a gear tooth surface crack detection structure. Existing detection mechanisms cannot effectively and automatically rotate the gear angle. This invention utilizes a rotating mechanism, a fastening mechanism, a detection probe, and a flipping mechanism. First, the sliding base is moved, moving the rotating mechanism away from the gear. Then, an electric push rod is activated, pushing a half-rack horizontally to the right. The half-rack pushes the half-gear to rotate 90 degrees, causing the half-gear to rotate a rotating plate 90 degrees around its bottom axis. This causes the fastening mechanism, connected to the upper part of the rotating plate via a connecting shaft, to rotate 90 degrees around the axis. Initially, the connecting shaft is blocked by a wedge, causing the connecting shaft torsion spring to deform. When the rotating plate rotates downwards, the torsion spring returns to its original position. This causes the connecting shaft to rotate 180 degrees, which in turn causes the fastening mechanism to rotate 180 degrees. When the rotating plate rotates to be parallel to the horizontal plate, the fastening mechanism rotates to the upper part of the rotating plate. At this time, the gear on the fastening mechanism is parallel to the horizontal plate, completing the switch of the gear from a vertical to a horizontal state. This reduces the number of manual operations, makes it easier to flip, reduces labor intensity, and eliminates the need to adjust the position of the detection probe. Align the hollow part of the gear to be tested with the fastening mechanism, and place the four extrusion plates into the hollow circle of the gear. The four extrusion plates move inward, thereby lengthening the four springs at the bottom. Under the action of the springs, the four extrusion plates can adapt to gears with different hollow diameters without causing the gear to fall off. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the lifting component structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the flipping mechanism of this utility model. Figure 1 ;

[0020] Figure 4 This is a schematic diagram of the flipping mechanism of this utility model. Figure 2 ;

[0021] Figure 5 This is an exploded view of the flipping mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram of the explosion after the flipping mechanism of this utility model rotates;

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

[0024] In the diagram: 1. Operating table; 2. Adjustable leg; 3. Crack detection instrument; 4. Robotic arm; 5. Detection probe; 6. Sliding base; 7. Lifting assembly; 71. Slide rod; 72. Baffle; 73. Sleeve; 74. Locking component; 8. Rotating mechanism; 81. I-beam; 82. Motor; 83. Turntable; 84. Suction cup; 9. Support assembly; 91. Horizontal plate; 92. Vertical plate; 10. Fastening mechanism; 101. Disc; 102. Extrusion plate; 103. Spring; 11. Flipping mechanism; 111. Electric push rod; 112. Half rack; 113. Half gear; 114. Rotating plate; 115. Connecting shaft; 116. Inclined block. Detailed Implementation

[0025] 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.

[0026] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0027] Please see Figure 1-7 This utility model provides a technical solution: a gear tooth surface crack detection structure, including an operating table 1 and a lifting assembly 7. The upper end of the operating table 1 is provided with a crack comprehensive detector 3 for data reception and comparison, and the right side of the crack comprehensive detector 3 is provided with a mechanical arm 4 for adjusting the angle and height. The bottom of the mechanical arm 4 is provided with a detection probe 5. The left side of the right lifting assembly 7 is provided with a support assembly 9, and the support assembly 9 includes a vertical plate 92 provided on the left side of the lifting assembly 7. The bottom of the vertical plate 92 is connected to a horizontal plate 91, and the upper end of the horizontal plate 91 is provided with a flipping mechanism 11. The flipping mechanism 11 includes an electric push rod 111 provided on the upper end of the horizontal plate 91, and the right side of the electric push rod 111 is connected to a half rack 112. The upper end of the half rack 112 is meshed with a half gear 113, and the shaft of the half gear 113 passes through the bottom of the rotating plate 114.

[0028] The bottom of the operating table 1 is equipped with four adjustable legs 2, and the height of the adjustable legs 2 can be adjusted by bolts. The robotic arm 4 is a three-fold type, which makes it convenient for the staff to adjust the position of the detection probe 5.

[0029] Two sets of lifting components 7 are provided on the operating table 1. The left lifting component 7 is fixed to the upper end of the sliding base 6, and the sliding base 6 is slidably connected to the operating table 1. The right lifting component 7 is fixed on the operating table 1, so that the left rotating mechanism 8 can be adjusted in position to facilitate the fixing of the gear together with the fastening mechanism 10.

[0030] The lifting assembly 7 includes a slide bar 71 set on the upper end of the operating table 1, and the highest points of the two sets of slide bars 71 are at the same height. A sleeve 73 is sleeved on the outside of the slide bar 71. A locking member 74 is threadedly connected to one side of the sleeve 73. A baffle 72 is fixed to the upper end of the slide bar 71. A rotating mechanism 8 is connected to the outside of the left sleeve 73, and a vertical plate 92 is connected to the outside of the right sleeve 73, so as to facilitate the adjustment of the installation height according to the diameter of the gear.

[0031] The rotating mechanism 8 includes an I-shaped plate 81 disposed outside the sleeve 73, and a motor 82 disposed inside the I-shaped plate 81. The output end of the motor 82 is connected to a turntable 83. Multiple evenly distributed suction cups 84 are disposed on the other side surface of the turntable 83, so that the rotation of the turntable 83 drives the gear to rotate, and the multiple suction cups 84 can fix the gear.

[0032] A connecting shaft 115 is provided at the upper end of the rotating plate 114, and a fastening mechanism 10 is rotatably connected to the left side of the connecting shaft 115. The fastening mechanism 10 includes a disc 101 rotatably connected to the outside of the connecting shaft 115. Four extrusion plates 102 are provided on the other side of the disc 101. The extrusion plates 102 are arc-shaped, and the bottom of the extrusion plates 102 can move within a preset slide rail of the disc 101. A spring 103 is provided inside the preset slide rail of the disc 101, and the spring 103 is connected to the outer bottom of the extrusion plates 102. The four extrusion plates 102 are unfolded in the initial state. The width of the extrusion plates 102 is the same as that of the gear, so it will not affect the normal operation of the suction cup 84. Moreover, the spacing between the extrusion plates 102 can be adjusted.

[0033] A toothed block is provided on the right side of the half rack 112, and a half-circle toothed block is provided on the outside of the half gear 113. The rotating shaft at the bottom of the rotating plate 114 is fixed to the outside of the vertical plate 92 through the extension plate. A notch is reserved at the bottom of the vertical plate 92 for the half rack 112 to move, so that the half gear 113 can rotate only 90 degrees.

[0034] A torsion spring is provided on the outside of the connecting shaft 115. In the initial state, the disk 101 is located above the rotating plate 114 and the disk 101 is perpendicular to the rotating plate 114. An inclined block 116 is fixed on the left side of the vertical plate 92 and contacts the connecting shaft 115 at the upper end of the vertical rotating plate 114, so that the disk 101 can automatically adjust its position to realize the switching of gear angle.

[0035] Working principle: When using this gear tooth surface crack detection structure, firstly, move the sleeve 73 in the two sets of lifting components 7 to a suitable height on the slide rod 71. Then, rotate the locking part 74 to fix this height. Next, align the hollow part of the gear to be tested with the fastening mechanism 10, and place the four extrusion plates 102 into the hollow circle of the gear. The four extrusion plates 102 move inward, thereby lengthening the four springs 103 at the bottom. Under the action of the springs 103, the four extrusion plates 102 can adapt to gears with different hollow diameters, and will not cause... The gear disengages. Then, move the sliding base 6 so that the suction cup 84 on the turntable 83 contacts the gear tooth surface. Next, start the motor 82, which drives the turntable 83 to rotate. The turntable 83 then uses the suction cup 84 to rotate the gear. The disc 101 is connected to one side of the connecting shaft 115. The rotating gear allows for omnidirectional detection of the side gear blocks. When it is necessary to inspect the front of the gear, first move the sliding base 6 so that the rotating mechanism 8 is away from the gear. Then, start the electric push rod 111, which pushes the half-rack 11. 2. Moving horizontally to the right, the half rack 112 pushes the half gear 113 to rotate 90 degrees, thereby causing the half gear 113 to drive the rotating plate 114 to rotate 90 degrees around the bottom axis. This causes the upper end of the rotating plate 114, connected by the connecting shaft 115, to rotate 90 degrees around the axis. In the initial state, the connecting shaft 115 is blocked by the wedge block 116, causing the torsion spring of the connecting shaft 115 to deform. When the rotating plate 114 rotates downward, the torsion spring returns to its original position, thereby driving the connecting shaft 115 to rotate 180 degrees, which in turn drives the fastening mechanism 10 to rotate. At 180 degrees, when the rotating plate 114 is parallel to the horizontal plate 91, the fastening mechanism 10 rotates to the upper end of the rotating plate 114. At this time, the gear on the fastening mechanism 10 is parallel to the horizontal plate 91, completing the switch of the gear from a vertical state to a horizontal state. This reduces the number of manual operations, makes it easier to flip, reduces labor intensity, and eliminates the need to adjust the position of the detection probe 5. The detection probe 5 can be restarted to detect the front tooth surface. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gear tooth surface crack detection structure, comprising an operating table (1) and a lifting assembly (7), characterized in that: The upper end of the operating table (1) is provided with a crack comprehensive detector (3) for data reception and comparison, and the right side of the crack comprehensive detector (3) is provided with a mechanical arm (4) for adjusting the angle and height, and the bottom of the mechanical arm (4) is provided with a detection probe (5). The left side of the right lifting component (7) is provided with a support component (9), and the support component (9) includes a vertical plate (92) provided on the left side of the lifting component (7), and the bottom of the vertical plate (92) is connected to a horizontal plate (91). The upper end of the horizontal plate (91) is provided with a flipping mechanism (11); the flipping mechanism (11) includes an electric push rod (111) provided on the upper end of the horizontal plate (91), and the right side of the electric push rod (111) is connected to a half rack (112), and the upper end of the half rack (112) is meshed with a half gear (113), and the shaft of the half gear (113) passes through the bottom of the rotating plate (114).

2. The gear tooth surface crack detection structure according to claim 1, characterized in that: The bottom of the operating table (1) is provided with four adjustable legs (2), and the height of the adjustable legs (2) can be adjusted by bolts. The robotic arm (4) is a three-fold type.

3. The gear tooth surface crack detection structure according to claim 1, characterized in that: The operating table (1) is provided with two sets of lifting components (7), and the lifting component (7) on the left is fixed on the upper end of the sliding base (6), and the sliding base (6) is slidably connected to the operating table (1), while the lifting component (7) on the right is fixed on the operating table (1).

4. The gear tooth surface crack detection structure according to claim 1, characterized in that: The lifting assembly (7) includes a slide rod (71) set on the upper end of the operating table (1), and the highest points of the two sets of slide rods (71) are at the same height. A sleeve (73) is sleeved on the outside of the slide rod (71). A locking member (74) is threaded on one side of the sleeve (73). A baffle (72) is fixed on the upper end of the slide rod (71). A rotating mechanism (8) is connected to the outside of the sleeve (73) on the left side, and a vertical plate (92) is connected to the outside of the sleeve (73) on the right side.

5. The gear tooth surface crack detection structure according to claim 4, characterized in that: The rotating mechanism (8) includes an I-shaped plate (81) disposed outside the sleeve (73), and a motor (82) is disposed inside the I-shaped plate (81), and the output end of the motor (82) is connected to a turntable (83), and a plurality of evenly distributed suction cups (84) are disposed on the other side surface of the turntable (83).

6. The gear tooth surface crack detection structure according to claim 1, characterized in that: The upper end of the rotating plate (114) is provided with a connecting shaft (115), and a fastening mechanism (10) is rotatably connected to the left side of the connecting shaft (115). The fastening mechanism (10) includes a disc (101) rotatably connected to the outside of the connecting shaft (115). Four extrusion plates (102) are provided on the other side of the disc (101). The extrusion plates (102) are arc-shaped, and the bottom of the extrusion plates (102) can move within the preset slide rail of the disc (101). A spring (103) is provided inside the preset slide rail of the disc (101), and the spring (103) is connected to the outside of the bottom of the extrusion plates (102). The four extrusion plates (102) are unfolded in the initial state.

7. The gear tooth surface crack detection structure according to claim 1, characterized in that: The half rack (112) has a tooth block on its right side, and the half gear (113) has a half ring of tooth blocks on its outside. The rotating shaft at the bottom of the rotating plate (114) is fixed to the outside of the vertical plate (92) by an extension plate. The bottom of the vertical plate (92) has a notch for the half rack (112) to move.

8. The gear tooth surface crack detection structure according to claim 6, characterized in that: A torsion spring is provided on the outside of the connecting shaft (115), and in the initial state, the disk (101) of the torsion spring is located above the rotating plate (114), and in the initial state, the disk (101) and the rotating plate (114) are perpendicular to each other. A wedge (116) is fixed on the left side of the vertical plate (92), and the wedge (116) is in contact with the connecting shaft (115) at the upper end of the vertical rotating plate (114).

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