A crank sprocket machining device capable of automatic detection and correction

Abstract

The application discloses a crank sprocket machining device capable of automatic detection and correction, relates to the technical field of crank sprocket machining, and comprises a bottom plate, a supporting block is fixedly connected to the lower side of the bottom plate, a detection unit and a correction unit are arranged on the upper side of the bottom plate, a rotating rod is rotationally connected to the upper side of the bottom plate, a rotating disc is fixedly connected to the upper end of the rotating rod, a clamp and a placing table are arranged on the upper side of the rotating disc, a motor one is fixedly connected to the lower side of the bottom plate, the detection unit is located on the left side of the correction unit, and the detection unit comprises a vertical plate one. The crank sprocket machining device is provided with the bottom plate, the vertical plate one, a top plate one, a contact roller, a shielding plate and an infrared sensor, the rotating disc is convenient to control the rotation of the sprocket, the contact roller is in contact with the sprocket, when the sprocket is uneven and protrudes, the contact roller rises, the distance between the infrared sensor and the shielding plate changes, and the flatness of the sprocket is convenient to detect quickly.

Description

Technical Field

[0001] This invention relates to the field of crank sprocket machining technology, specifically to a crank sprocket machining device capable of automatic detection and correction. Background Technology

[0002] A crank sprocket (usually called a chainring, but in the bicycle industry it specifically refers to the chainring) is a disc-shaped gear mounted on the crankset (pedal arm) that meshes with the chain and transmits power.

[0003] In the manufacturing process of crank sprockets, the flatness of their mounting surface and their perpendicularity to the shaft hole are key quality indicators affecting transmission performance and service life. If the sprocket end face has an skew that exceeds the allowable range, it will directly lead to poor chain meshing during assembly and use, resulting in abnormal wear and noise. In severe cases, it may even cause chain derailment, affecting the reliability and safety of the transmission system.

[0004] Currently, the inspection of sprocket flatness still relies primarily on manual visual observation or simple measuring tools in many production stages. This traditional inspection method is not only inefficient, but its results are also highly dependent on the operator's experience and condition, easily leading to defective products flowing into subsequent processes due to visual errors or subjective judgment mistakes. It also fails to effectively correct detected misaligned workpieces. Once flatness deviations are found, the workpiece is usually marked as scrap or transferred to a special rework process, which not only wastes raw materials and processing costs but also disrupts the continuity of the production flow.

[0005] Therefore, the present invention proposes a crank sprocket processing device that can automatically detect and correct, in order to solve the problems mentioned above. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides an automatic detection and correction device for crank sprocket processing, which solves the problem of large errors in manual detection of sprocket flatness.

[0007] To achieve the above objectives, the present invention provides the following technical solution: An automatic detection and correction crank sprocket processing device includes a base plate, a support block fixedly connected to the lower side of the base plate, a detection unit and a correction unit arranged on the upper side of the base plate, a rotating rod rotatably connected to the upper side of the base plate, a turntable fixedly connected to the upper end of the rotating rod, a clamp and a placement table arranged on the upper side of the turntable, a motor fixedly connected to the lower side of the base plate, the detection unit located to the left of the correction unit, the detection unit including a vertical plate fixedly connected to the upper side of the base plate, a top plate fixedly connected to the upper side of the vertical plate, a hydraulic cylinder fixedly connected to the upper side of the top plate, a lifting plate and a baffle plate fixedly connected to the lower output end of the hydraulic cylinder, and a contact component fixedly connected to the lower side of the lifting plate.

[0008] Preferably, the contact assembly includes a lifting groove, which is opened on the front and rear sides of the lifting plate. A lifting block is slidably connected to the inner side of the lifting groove, and a fixing plate is fixedly connected to the outer side of the lifting block. A contact roller and a connecting plate are arranged between the two fixing plates, and a spring is fixedly connected between the connecting plate and the lifting plate.

[0009] Preferably, a top block is fixedly connected to the upper side of the fixed plate, a movable block is fixedly connected to the upper side of the top block, an infrared sensor is fixedly connected to the upper side of the movable block, and the shielding plate is located above the movable block.

[0010] Preferably, the correction unit includes a second upright plate, which is fixedly connected to the upper side of the base plate. A second top plate is fixedly connected to the upper side of the second upright plate, and a second hydraulic cylinder is fixedly connected to the upper side of the second top plate. A second lifting plate is fixedly connected to the lower output end of the second hydraulic cylinder, and two branch plates are fixedly connected to the lower side of the second lifting plate. A control rod is rotatably connected between the two branch plates. A rotating roller is fixedly connected to the middle of the control rod, and multiple branch blocks are fixedly connected to the outer side of the rotating roller. An installation plate is fixedly connected to the outer side of the branch blocks, and a placement plate is provided on the outer side of the installation plate. A correction block is fixedly connected to the outer side of the placement plate.

[0011] Preferably, a gear one is fixedly connected to the outer end of the control lever, a rotating shaft is rotatably connected to one side of the branch plate, a gear two is fixedly connected to the outer end of the rotating shaft, and a motor two is fixedly connected to the other side of the branch plate.

[0012] Preferably, the output end of the second motor is fixedly connected to the output end of the rotating shaft, and the first gear is meshed with the second gear.

[0013] Preferably, guide rails are fixedly connected to both the front and rear sides of the mounting plate, two sliders are slidably connected to the inner side of the guide rails, U-shaped plates are fixedly connected to the lower side of the two sliders, a placement plate is fixedly connected to the lower side of the U-shaped plate, and an extension plate is fixedly connected to the lower side of the placement plate.

[0014] Preferably, an L-shaped plate is fixedly connected to the outer side of the slider, and control plates are fixedly connected to the outer sides of both L-shaped plates. An inclined plate is rotatably connected to the upper side of both control plates. A rotating block is rotatably connected to the outer side of the inclined plate. A control block is fixedly connected to the outer side of the rotating block. A sliding groove is provided on the upper side of the mounting plate. A push block is slidably connected to the inner side of the sliding groove. The push block is fixedly connected to the control block. A screw is rotatably connected to the inner side of the sliding groove. The screw is threadedly connected to the push block. A rotating cap is fixedly connected to the outer end of the screw.

[0015] This invention provides a crank sprocket machining device capable of automatic detection and correction. Compared with the prior art, it has the following advantages: (1) The crank sprocket processing device is equipped with a base plate, a vertical plate, a top plate, a contact roller, a baffle plate and an infrared sensor, which facilitates the turntable to control the rotation of the sprocket. The contact roller contacts the sprocket. When the sprocket is uneven and protrudes, the contact roller rises, causing the distance between the infrared sensor and the baffle plate to change, which facilitates the rapid detection of the sprocket's flatness.

[0016] (2) The crank sprocket processing device is equipped with a second vertical plate, a second top plate, a mounting plate and a correction block, which facilitates the control of the correction block to descend, so that the correction block can press down and correct the protruding part of the sprocket. The control rod and the rotating roller facilitate the switching of new correction blocks, avoiding the wear of the correction block from affecting the correction effect. The correction block can be quickly disassembled for maintenance by rotating the screw. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the detection unit in this invention; Figure 3 This is a partial three-dimensional structural diagram of the detection unit in this invention; Figure 4 This is a three-dimensional structural diagram of the correction unit in this invention; Figure 5 This is a partial three-dimensional structural diagram of the correction unit in this invention; Figure 6 This is a three-dimensional structural diagram of the rotating rod in this invention; Figure 7 This is a three-dimensional structural diagram of the correction block in this invention; Figure 8 This is a top-view perspective view of the mounting plate in this invention; Figure 9 for Figure 8 Enlarged view of point A in the middle.

[0018] In the diagram: 1. Base plate; 2. Support block; 3. Motor 1; 4. Rotating rod; 5. Turntable; 6. Detection unit; 7. Calibration unit; 8. Fixture; 9. Placement platform; 61. Vertical plate 1; 62. Top plate 1; 63. Hydraulic cylinder 1; 64. Lifting plate 1; 65. Contact assembly; 66. Baffle plate; 651. Lifting groove; 652. Lifting block; 653. Fixing plate; 654. Contact roller; 655. Connecting plate; 656. Spring; 657. Top block; 658. Moving block; 659. Infrared sensor; 71. Vertical plate 2; 72. Top plate 2; 73. 74. Hydraulic cylinder 2; 75. Lifting plate 2; 76. Branch plate; 77. Control lever; 78. Rotary roller; 79. Gear 1; 70. Rotating shaft; 710. Gear 2; 711. Motor 2; 712. Branch block; 713. Mounting plate; 714. Guide rail; 715. Slider; 716. U-shaped plate; 717. Extension plate; 718. Placement plate; 719. Correction block; 720. L-shaped plate; 721. Control plate; 722. Inclined plate; 723. Rotating block; 724. Control block; 725. Push block; 726. Slide groove; 727. Screw; 728. Rotating cap. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides the following technical solutions: Please see Figure 1 - Figure 9 An automatic detection and correction crank sprocket processing device includes a base plate 1, a support block 2 fixedly connected to the lower side of the base plate 1, a detection unit 6 and a correction unit 7 arranged on the upper side of the base plate 1, a rotating rod 4 rotatably connected to the upper side of the base plate 1, a turntable 5 fixedly connected to the upper end of the rotating rod 4, a clamp 8 and a placement table 9 arranged on the upper side of the turntable 5, a motor 3 fixedly connected to the lower side of the base plate 1, the detection unit 6 being located to the left of the correction unit 7, and the detection unit 6 including a vertical plate 61 fixedly connected to the upper side of the base plate 1. A top plate 62 is fixedly connected to the upper side of 61. A hydraulic cylinder 63 is fixedly connected to the upper side of the top plate 62. A lifting plate 64 and a baffle plate 66 are fixedly connected to the lower output end of the hydraulic cylinder 63. A contact component 65 is fixedly connected to the lower side of the lifting plate 64. When processing the sprocket, the sprocket is first placed on the placement table 9. Then, the motor 3 is started. The motor 3 drives the rotating rod 4 to rotate. The rotating rod 4 drives the turntable 5 to rotate. The sprocket is limited by the clamp 8. The turntable 5 drives the sprocket to rotate, which facilitates the detection and correction of the sprocket.

[0021] The contact assembly 65 includes a lifting groove 651, which is formed on the front and rear sides of the lifting plate 64. A lifting block 652 is slidably connected to the inner side of the lifting groove 651, and a fixing plate 653 is fixedly connected to the outer side of the lifting block 652. A contact roller 654 and a connecting plate 655 are arranged between the two fixing plates 653. A spring 656 is fixedly connected between the connecting plate 655 and the lifting plate 64. A top block 657 is fixedly connected to the upper side of the fixing plate 653, and a moving block 658 is fixedly connected to the upper side of the top block 657. An infrared sensor 659 is fixedly connected to the upper side of the moving block 658. A shielding plate 66 is located on the moving block. Above 658, during the inspection, the hydraulic cylinder 63 drives the lifting plate 64 to descend, which in turn drives the contact roller 654 to descend, bringing it into contact with the sprocket. At this time, the sprocket is controlled to rotate. When the sprocket becomes uneven, the contact roller 654 rises, which in turn drives the fixed plate 653 to rise. The top block 657 of the fixed plate 653 rises, which in turn drives the moving block 658 to rise. The moving block 658 then drives the infrared sensor 659 to rise, shortening the distance between the infrared sensor 659 and the shielding plate 66. Through an external controller, the flatness of the sprocket is detected.

[0022] The correction unit 7 includes a second vertical plate 71, which is fixedly connected to the upper side of the base plate 1. A second top plate 72 is fixedly connected to the upper side of the second vertical plate 71. A second hydraulic cylinder 73 is fixedly connected to the upper side of the second top plate 72. A second lifting plate 74 is fixedly connected to the lower output end of the second hydraulic cylinder 73. Two branch plates 75 are fixedly connected to the lower side of the second lifting plate 74. A control rod 76 is rotatably connected between the two branch plates 75. A rotating roller 77 is fixedly connected to the middle of the control rod 76. Multiple branches are fixedly connected to the outer side of the rotating roller 77. A mounting plate 713 is fixedly connected to the outer side of the branch block 712. A placement plate 718 is provided on the outer side of the mounting plate 713. A correction block 719 is fixedly connected to the outer side of the placement plate 718. When correcting the protrusion, the hydraulic cylinder 73 is controlled to drive the lifting plate 74 to descend. The lifting plate 74 drives the branch plate 75 to descend. The branch plate 75 drives the correction block 719 to descend, so that the correction block 719 presses down on the protrusion, which facilitates the application of pressure to the sprocket and realizes the correction function.

[0023] Gear 78 is fixedly connected to the outer end of control lever 76. A rotating shaft 79 is rotatably connected to one side of branch plate 75. Gear 710 is fixedly connected to the outer end of rotating shaft 79. Motor 711 is fixedly connected to the other side of branch plate 75. The output end of motor 711 is fixedly connected to the output end of rotating shaft 79. Gear 78 and gear 710 are meshed. When the correction block 719 is worn, motor 711 is started. Motor 711 drives rotating shaft 79 to rotate. Rotating shaft 79 drives gear 710 to rotate. Gear 710 drives gear 78 to rotate. Gear 78 drives control lever 76 to rotate. Control lever 76 drives rotating roller 77 to rotate. Rotating roller 77 drives mounting plate 713 on branch block 712 to rotate. Mounting plate 713 drives new correction block 719 to rotate, so that new correction block 719 faces downward, avoiding continued use of worn correction block 719 which affects the correction effect.

[0024] Guide rails 714 are fixedly connected to both the front and rear sides of the mounting plate 713. Two sliders 715 are slidably connected to the inner side of the guide rails 714. U-shaped plates 716 are fixedly connected to the lower side of each slider 715. A placement plate 718 is fixedly connected to the lower side of the U-shaped plate 716. An extension plate 717 is fixedly connected to the lower side of the placement plate 718. L-shaped plates 720 are fixedly connected to the outer side of each slider 715. Control plates 721 are fixedly connected to the outer side of each L-shaped plate 720. Inclined plates 722 are rotatably connected to the upper side of each control plate 721. Rotating blocks 723 are rotatably connected to the outer side of each inclined plate 722. A control block 724 is fixedly connected to the outer side of each rotating block 723. A slide groove 726 is provided on the upper side of the mounting plate 713. A push block 725 is slidably connected to the inner side of the slide groove 726. The push block 725 is fixedly connected to the control block 724. A screw 727 is dynamically connected to a push block 725. A rotating cap 728 is fixedly connected to the outer end of the screw 727. When the worn correction block 719 needs to be removed, the rotating cap 728 is rotated. The rotating cap 728 drives the screw 727 to rotate, the screw 727 drives the push block 725 to move, the push block 725 drives the control block 724 to move, the control block 724 drives the inclined plate 722 to rotate, and the inclined plate 722 drives the control plate 721 to move. Since the inclined plates 722 on both sides are symmetrically distributed, the control plates 721 on both sides are moved away from each other. The control plate 721 drives the L-shaped plate 720 to move, the L-shaped plate 720 drives the slider 715 to move, the slider 715 drives the U-shaped plate 716 to move, and the U-shaped plate 716 drives the extension plate 717 to move, so that the extension plate 717 is separated from the placement plate 718, making it convenient to remove the correction block 719.

[0025] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0026] Working principle: First, place the sprocket on the placement platform 9, then start the motor 3. The motor 3 drives the rotating rod 4 to rotate, and the rotating rod 4 drives the turntable 5 to rotate. The sprocket is limited by the clamp 8. The turntable 5 drives the sprocket to rotate. When the sprocket becomes uneven, the contact roller 654 rises. The contact roller 654 drives the fixed plate 653 to rise, the top block 657 of the fixed plate 653 rises, the top block 657 drives the moving block 658 to rise, and the moving block 658 drives the infrared sensor 659 to rise, shortening the distance between the infrared sensor 659 and the shielding plate 66. The flatness of the sprocket is detected by an external controller.

[0027] When correcting the protrusion, hydraulic cylinder 2 73 is controlled, which drives lifting plate 2 74 to descend. Lifting plate 2 74 drives branch plate 75 to descend, and branch plate 75 drives correction block 719 to descend, so that correction block 719 presses down on the protrusion, making it easier to apply pressure to the sprocket and achieve the correction function. When correction block 719 wears, motor 2 711 is started, which drives rotating shaft 79 to rotate. Rotating shaft 79 drives gear 2 710 to rotate, gear 2 710 drives gear 1 78 to rotate, gear 1 78 drives control lever 76 to rotate, control lever 76 drives rotating roller 77 to rotate, and rotating roller 77 drives mounting plate 713 on branch block 712 to rotate. Mounting plate 713 drives new correction block 719 to rotate, so that new correction block 719 faces downward, avoiding the continued use of worn correction block 719 which affects the correction effect.

[0028] When the worn correction block 719 needs to be removed, rotate the rotating cap 728. The rotating cap 728 drives the screw 727 to rotate, the screw 727 drives the push block 725 to move, the push block 725 drives the control block 724 to move, the control block 724 drives the inclined plate 722 to rotate, and the inclined plate 722 drives the control plate 721 to move. Since the inclined plates 722 on both sides are symmetrically distributed, the control plates 721 on both sides are moved away from each other. The control plate 721 drives the L-shaped plate 720 to move, the L-shaped plate 720 drives the slider 715 to move, the slider 715 drives the U-shaped plate 716 to move, and the U-shaped plate 716 drives the extension plate 717 to move, so that the extension plate 717 is separated from the placement plate 718, making it convenient to remove the correction block 719.

[0029] 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.

[0030] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crank sprocket machining device capable of automatic detection and correction, comprising a base plate (1), characterized in that: A support block (2) is fixedly connected to the lower side of the base plate (1). A detection unit (6) and a calibration unit (7) are provided on the upper side of the base plate (1). A rotating rod (4) is rotatably connected to the upper side of the base plate (1). A turntable (5) is fixedly connected to the upper end of the rotating rod (4). A clamp (8) and a placement platform (9) are provided on the upper side of the turntable (5). A motor (3) is fixedly connected to the lower side of the base plate (1). The detection unit (6) is located at the calibration unit (7). On the left side, the detection unit (6) includes a vertical plate (61), which is fixedly connected to the upper side of the base plate (1). A top plate (62) is fixedly connected to the upper side of the vertical plate (61), and a hydraulic cylinder (63) is fixedly connected to the upper side of the top plate (62). A lifting plate (64) and a baffle plate (66) are fixedly connected to the lower end of the hydraulic cylinder (63), and a contact component (65) is fixedly connected to the lower side of the lifting plate (64).

2. The crank sprocket machining device capable of automatic detection and correction according to claim 1, characterized in that: The contact assembly (65) includes a lifting groove (651), which is opened on the front and rear sides of the lifting plate (64). A lifting block (652) is slidably connected to the inner side of the lifting groove (651), and a fixing plate (653) is fixedly connected to the outer side of the lifting block (652). A contact roller (654) and a connecting plate (655) are arranged between the two fixing plates (653). A spring (656) is fixedly connected between the connecting plate (655) and the lifting plate (64).

3. The crank sprocket machining device capable of automatic detection and correction according to claim 2, characterized in that: A top block (657) is fixedly connected to the upper side of the fixed plate (653), a moving block (658) is fixedly connected to the upper side of the top block (657), an infrared sensor (659) is fixedly connected to the upper side of the moving block (658), and the shielding plate (66) is located above the moving block (658).

4. The crank sprocket machining device capable of automatic detection and correction according to claim 1, characterized in that: The correction unit (7) includes a second vertical plate (71), which is fixedly connected to the upper side of the base plate (1). A second top plate (72) is fixedly connected to the upper side of the second vertical plate (71). A second hydraulic cylinder (73) is fixedly connected to the upper side of the second top plate (72). A second lifting plate (74) is fixedly connected to the lower output end of the second hydraulic cylinder (73). Two branch plates (75) are fixedly connected to the lower side of the second lifting plate (74). A control rod (76) is rotatably connected between the two branch plates (75). A rotating roller (77) is fixedly connected to the middle of the control rod (76). Multiple branch blocks (712) are fixedly connected to the outer side of the rotating roller (77). An installation plate (713) is fixedly connected to the outer side of the branch block (712). A placement plate (718) is provided on the outer side of the installation plate (713). A correction block (719) is fixedly connected to the outer side of the placement plate (718).

5. The crank sprocket machining device capable of automatic detection and correction according to claim 4, characterized in that: The outer end of the control lever (76) is fixedly connected to a gear 1 (78), one side of the branch plate (75) is rotatably connected to a shaft (79), the outer end of the shaft (79) is fixedly connected to a gear 2 (710), and the other side of the branch plate (75) is fixedly connected to a motor 2 (711).

6. The crank sprocket machining device capable of automatic detection and correction according to claim 5, characterized in that: The output end of the second motor (711) is fixedly connected to the output end of the rotating shaft (79), and the first gear (78) is meshed with the second gear (710).

7. The crank sprocket machining device capable of automatic detection and correction according to claim 6, characterized in that: The mounting plate (713) is fixedly connected to guide rails (714) on both the front and rear sides. Two sliders (715) are slidably connected to the inner side of the guide rails (714). A U-shaped plate (716) is fixedly connected to the lower side of the two sliders (715). A placement plate (718) is fixedly connected to the lower side of the U-shaped plate (716). An extension plate (717) is fixedly connected to the lower side of the placement plate (718).

8. The crank sprocket machining device capable of automatic detection and correction according to claim 7, characterized in that: An L-shaped plate (720) is fixedly connected to the outer side of the slider (715). A control plate (721) is fixedly connected to the outer side of both sides of the L-shaped plate (720). An inclined plate (722) is rotatably connected to the upper side of both sides of the control plate (721). A rotating block (723) is rotatably connected to the outer side of the inclined plate (722). A control block (724) is fixedly connected to the outer side of the rotating block (723). A sliding groove (726) is provided on the upper side of the mounting plate (713). A push block (725) is slidably connected to the inner side of the sliding groove (726). The push block (725) is fixedly connected to the control block (724). A screw (727) is rotatably connected to the inner side of the sliding groove (726). The screw (727) is threadedly connected to the push block (725). A rotating cap (728) is fixedly connected to the outer end of the screw (727).

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