Gear phase detection tool

Abstract

The present invention relates to the technical field of gear phase detection, and in particular to a gear phase detection tool, comprising a positioning device and a chassis, wherein the positioning device is located on the top of the chassis and connected to the chassis, and the positioning device comprises an execution assembly: and also comprises a driving assembly connected to the execution assembly. The present invention places the gear to be tested on the top of a protective plate, and rotates a rotating rod at the same time, so that three groups of positioning tooth blocks on the top of the protective plate complete the positioning of the gear to be tested, and any one group of the three groups of positioning tooth blocks completes meshing with the internal spline of the gear to be tested. By observing the positional relationship between the tooth profile of the external tooth of the gear to be tested on one side of the positioning tooth block meshing with the tooth profile of the internal spline of the gear to be tested and the phase detection scale line, it is judged whether the gear to be tested is qualified, so as to solve the problems that the existing gear phase detection device takes a long time to detect, has a high cost, is difficult to detect gears of different specifications, and is prone to shaking when positioning the gear.

Description

Technical Field

[0001] The present invention relates to the technical field of gear phase detection, and in particular to a gear phase detection tool. Background Art

[0002] At present, there are various methods for processing gears. When simply processing internal teeth or external teeth, the existing processing methods can fully meet the processing needs. However, sometimes there are certain processing requirements for the matching of external teeth and internal splines, or external teeth and internal teeth. The specific requirements can be reflected in that a certain tooth profile of the processed external teeth must be ensured to be on the same straight line with a certain tooth profile of the internal spline and the center of the base circle. Under this technical requirement, the processed external teeth and internal splines will inevitably produce some angular deviations, so that a certain profile of the external teeth and internal splines will have a certain angle with the line connecting the center of the base circle. Parts that do not exceed the error range can be used as finished products;

[0003] Since it is necessary to detect the straightness of a tooth profile of the processed external tooth, a tooth profile of the internal spline and the center of the base circle, when there is a slight deviation, it is difficult to tell whether it is in compliance by naked eye, so it is necessary to use a detection device to detect it;

[0004] The existing detection method is to use a three-coordinate measuring machine to perform point detection. However, during actual processing, due to processing errors, the actual processed parts deviate greatly from the design drawings, resulting in a pin collision phenomenon. In addition, the detection efficiency of the three-coordinate measuring machine is slow, the detection time is long, and the cost is high, so it is difficult to use;

[0005] The existing detection device also marks points on the gear to be tested, and the observer judges whether it is qualified by observing whether the mark position is on the same straight line with the tooth bottom of the external tooth profile, the tooth bottom of the internal tooth profile and the standard scale line. However, since the detection instrument needs to mark points on the surface of the gear, it is necessary to ensure that the mark position coincides with the tooth profile of the internal spline of the gear before observation. When testing gears of different specifications, the gear position needs to be recalibrated to ensure that the mark position coincides with the tooth profile of the internal spline of the gear before each observation. Therefore, it is difficult to detect gears of different specifications. In addition, this detection method adopts a two-point positioning method when positioning the gear. When the gear is affected by external force, it is easy to shake;

[0006] Therefore, it is necessary to invent a gear phase detection tool. Summary of the invention

[0007] To this end, the present invention provides a gear phase detection tool, which places the gear to be tested on the top of a protective plate and rotates the rotating rod at the same time, so that the three groups of positioning tooth blocks on the top of the protective plate complete the positioning of the gear to be tested, and any one group of the three groups of positioning tooth blocks is engaged with the internal spline of the gear to be tested. By observing the positional relationship between the tooth profile of the external tooth of the gear to be tested on one side of the positioning tooth block 136 that meshes with the tooth profile of the internal spline of the gear to be tested and the phase detection scale line 221, it is judged whether the gear to be tested is qualified, so as to solve the problems that the existing gear phase detection device takes a long time to detect, has a high cost and is difficult to detect gears of different specifications, and is prone to shaking when positioning the gear.

[0008] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a gear phase detection tool, comprising a positioning device and a chassis, wherein the positioning device is located on the top of the chassis and connected to the chassis, and the positioning device comprises an execution component: and further comprises: a driving component connected to the execution component;

[0009] The driving assembly comprises a middle annular base, an outer gear ring is arranged on the top of the middle annular base, a bottom rotating ring is fixedly installed on the bottom of the outer gear ring, the outer gear ring is rotatably connected to the top surface of the middle annular base through the bottom rotating ring, a top rotating slide rail is fixedly installed on the top of the outer gear ring, an inner gear ring is fixedly installed on the inner side wall of the outer gear ring, a first driving pinion is rotatably connected to the top of the middle annular base, three groups of the first driving pinions are arranged in a circular array, and the three groups of the first driving pinions are all meshed with the inner gear ring;

[0010] The driving assembly also includes a top plate with a notch, the outer gear ring is rotatably connected to the bottom of the top plate with a notch through a top rotating slide rail, the bottom of the side wall of the top plate with a notch is fixedly connected to the top edge of the middle ring base, the top of the top plate with a notch and the middle ring top of the middle ring base are both provided with limiting slide rails, the limiting slide rails are provided with three groups, and are all arranged in a circular row, the limiting slide rails located at the top of the top plate with a notch are respectively located on the same straight line as the limiting slide rails located at the middle ring top of the middle ring base, the two side walls of the notch of the top plate with a notch are fixedly installed with the same arc-shaped limiting plate, the bottom of the arc-shaped limiting plate is rotatably connected to a connecting column, the top of the connecting column is fixedly installed with a second driving gear, the bottom of the connecting column is fixedly installed with a matching helical gear, and the second driving gear is meshed with the outer gear ring.

[0011] Preferably, the actuator components are provided with three groups and are arranged in a circular row, the actuator components include an arc-shaped slide, a limit seat is fixedly installed on the bottom of the arc-shaped slide, a limit slide is fixedly installed on the bottom of the limit seat, the three groups of limit slides are slidably connected with the three groups of limit slide rails respectively, a plurality of groups of matching tooth blocks are fixedly installed on one side of the limit seat, the plurality of groups of matching tooth blocks are all meshed with the first driving pinion located on the same side, a limiting column is fixedly installed on the front end of the limit seat, the limiting column is fixedly passed through the arc-shaped slide, a positioning tooth block is fixedly installed on the limiting column located at the top of the arc-shaped slide, and convex sliders are fixedly installed on both sides of the positioning tooth block.

[0012] Preferably, the bottom of the middle annular base is fixedly connected to the top of the chassis, the connecting column rotates and passes through the upper surface of the chassis, a bottom plate is fixedly installed on the bottom of the chassis, a rotating rod is provided on the top of the bottom plate, the rotating rod rotates and passes through the side wall of the chassis, and a driving bevel gear is fixedly installed on the end wall of the rotating rod located inside the chassis, and the driving bevel gear is meshed with the mating bevel gear.

[0013] Preferably, a protective plate is fixedly installed at the top edge of the chassis, the positioning device is located inside the protective plate, a triangular groove is opened at the center of the top of the protective plate, three groups of phase detection scale lines are arranged on the top of the protective plate, the three groups of phase detection scale lines are respectively located at the three end corners of the triangular groove, standard scale lines are arranged at the center of the three groups of phase detection scale lines, two groups of inner walls opposite to each other of the triangular groove are opened with concave sliding grooves, and the convex sliding block is slidably connected to the concave sliding grooves.

[0014] The beneficial effects of the present invention are:

[0015] 1. Place the gear to be tested on the top of the protective plate, rotate the rotating rod to rotate the driving bevel gear on the rotating rod, and mesh with the matching bevel gear, so that the connecting column fixedly connected to the matching bevel gear drives the second driving gear to rotate, so that the second driving gear meshes with the outer gear ring, and the outer gear ring rotates on the middle ring base. Based on the rotation of the outer gear ring, the inner gear ring fixedly connected to the outer gear ring also rotates synchronously, forcing the three groups of first driving pinions installed on the middle ring base to mesh with them. The first gear is in the middle of the arc-shaped slide plate, and the second gear is in the middle of the arc-shaped slide plate. The arc-shaped slide plate is in the middle of the arc-shaped slide plate, and the arc-shaped slide plate ...

[0016] 2. Observe the tooth profile of the outer teeth of the gear to be tested on the side of the positioning gear block meshing with the tooth profile of the internal spline of the gear to be tested. If there is no problem with the phase of the inner and outer teeth of the gear to be tested, the tooth bottom of the outer tooth profile of the gear to be tested is exactly on the same straight line as the standard scale line of the phase detection scale. If they are not on the same straight line, that is, there is a certain angle deviation between the phases of the inner and outer teeth of the gear to be tested, the phase detection scale line corresponding to the tooth bottom of the outer tooth can be used to detect whether it is qualified. If the groove wall of the tooth bottom profile of the outer tooth is located within the outermost phase detection scale line If the outer tooth bottom contour groove wall is located outside the outermost phase detection scale line, it is considered a qualified product. This detection placement does not require marking on the gear to be tested. Since standard scale lines are set at the centers of the three sets of phase detection scale lines, the standard scale lines coincide with the center lines of the limit seat and the arc-shaped slide plate. Therefore, the center line of the positioning tooth block is just in the same straight line with the center point of the middle annular base. It is only necessary to make the tooth profile of the internal spline of the gear to be tested mesh with any set of positioning tooth blocks before completing the positioning of the gear to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of the device provided by the present invention;

[0018] Figure 2 An exploded view of the device provided by the present invention;

[0019] Figure 3 A partial exploded view of the device provided by the present invention;

[0020] Figure 4 An initial state diagram of the device provided by the present invention;

[0021] Figure 5 A schematic diagram of the structure of the calibration device provided by the present invention;

[0022] Figure 6 A disassembled diagram of the calibration device provided by the present invention;

[0023] Figure 7 An exploded view of the execution assembly provided by the present invention;

[0024] Figure 8 A bottom view of the execution assembly provided by the present invention;

[0025] Fig. 9 A schematic diagram of the structure of the drive assembly provided by the present invention;

[0026] Fig.10 A bottom view of the drive assembly provided by the present invention.

[0027] In the figure: the calibration device 100, the driving component 110, the middle annular base 111, the outer gear ring 112, the bottom rotating circle 113, the top rotating slide 114, the inner gear ring 115, the first driving pinion 116, the notched top plate 120, the limiting slide 121, the arc limiting plate 122, the second driving gear 123, the connecting column 124, the matching bevel gear 125, the actuator 130, the arc sliding plate 131, the limiting seat 132, the limiting slide 133, the matching tooth block 134, the limiting column 135, the positioning tooth block 136, the convex slider 137, the chassis 200, the bottom plate 210, the rotating rod 211, the driving bevel gear 212, the protective plate 220, the phase detection scale line 221, the standard scale line 222, the concave slide groove 223, and the triangular groove 224. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0029] Refer to the attached Figure 1-10 The present invention provides a gear phase detection tool, comprising a calibration device 100 and a chassis 200, wherein the calibration device 100 is located on the top of the chassis 200 and connected to the chassis 200, and the calibration device 100 comprises an execution component 130: and further comprises: a driving component 110 connected to the execution component 130;

[0030] The driving assembly 110 includes a middle annular base 111, an outer gear ring 112 is provided on the top of the middle annular base 111, a bottom rotating ring 113 is fixedly installed on the bottom of the outer gear ring 112, the outer gear ring 112 is rotatably connected to the top surface of the middle annular base 111 through the bottom rotating ring 113, a top rotating slide rail 114 is fixedly installed on the top of the outer gear ring 112, an inner gear ring 115 is fixedly installed on the inner side wall of the outer gear ring 112, and a first driving pinion 116 is rotatably connected to the top of the middle annular base 111. The first driving pinion 116 is provided in three groups and arranged in a circular array. The first driving pinions 116 of the group are all meshed with the inner gear ring 115, and the driving assembly 110 also includes a notched top plate 120. The outer gear ring 112 is rotatably connected to the bottom of the notched top plate 120 through a top rotating slide rail 114. The bottom of the side wall of the notched top plate 120 is fixedly connected to the top edge of the middle annular base 111. The top of the notched top plate 120 and the middle annular top of the middle annular base 111 are both provided with limiting slide rails 121. The limiting slide rails 121 are provided with three groups, and are all arranged in a circular row. The limiting slide rails 121 located at the top of the notched top plate 120 are respectively connected to the position The limiting slide rail 121 at the top of the middle ring of the annular base 111 is located on the same straight line, and the same arc-shaped limiting plate 122 is fixedly installed on both sides of the notch of the notch top plate 120, and the bottom of the arc-shaped limiting plate 122 is rotatably connected with a connecting column 124, and a second driving gear 123 is fixedly installed on the top of the connecting column 124, and a matching bevel gear 125 is fixedly installed on the bottom of the connecting column 124, and the second driving gear 123 is meshed with the outer gear ring 112. Specifically, by placing the gear to be tested on the top of the protective plate 220, the rotating rod 211 is rotated to make the rotating rod 211 The driving bevel gear 212 on 1 rotates and meshes with the matching bevel gear 125, so that the connecting column 124 fixedly connected to the matching bevel gear 125 drives the second driving gear 123 to rotate, so that the second driving gear 123 meshes with the outer gear ring 112, and the outer gear ring 112 rotates on the middle annular base 111. Based on the rotation of the outer gear ring 112, the inner gear ring 115 fixedly connected to the outer gear ring 112 also rotates synchronously, forcing the three groups of first driving pinions 116 installed on the middle annular base 111 to mesh with it.

[0031] Furthermore, the actuator assembly 130 is provided with three groups, and is arranged in a circular row. The actuator assembly 130 includes an arc-shaped slide 131, a limit seat 132 is fixedly installed at the bottom of the arc-shaped slide 131, a limit slide 133 is fixedly installed at the bottom of the limit seat 132, the three groups of limit slides 133 are slidably connected with the three groups of limit slide rails 121 respectively, the limit slide rails 121 provide limit for the limit slide 133, a plurality of groups of matching tooth blocks 134 are fixedly installed on one side of the limit seat 132, and the plurality of groups of matching tooth blocks 134 are all engaged with the first driving pinion 116 located on the same side, a limit column 135 is fixedly installed at the front end of the limit seat 132, and the limit column 135 is fixedly passed through the arc-shaped slide 131, and the limit column 135 is located at the top of the arc-shaped slide 131. A positioning tooth block 136 is fixedly installed on 135, and convex sliding blocks 137 are fixedly installed on both sides of the positioning tooth block 136. Specifically, since the first driving pinion 116 rotates, the matching tooth block 134 meshing with the first driving pinion 116 can drive the limiting seat 132 and the arc-shaped slide plate 131 to move. Under the action of the limiting slide seat 133, the arc-shaped slide plate 131 and the positioning tooth block 136 on its top can only move along the groove wall of the triangular groove 224. Since the three groups of positioning tooth blocks 136 move synchronously, when the three groups of positioning tooth blocks 136 all move to contact the internal splines of the gear to be measured, the center of the gear to be measured is just concentric with the top of the protective plate 220, and the positioning of the gear to be measured is completed at this time.

[0032] Furthermore, the bottom of the middle annular base 111 is fixedly connected to the top of the chassis 200, the connecting column 124 rotates and penetrates the upper surface of the chassis 200, a bottom plate 210 is fixedly installed at the bottom of the chassis 200, a rotating rod 211 is provided on the top of the bottom plate 210, the rotating rod 211 rotates and penetrates the side wall of the chassis 200, and a driving bevel gear 212 is fixedly installed at the end wall of the rotating rod 211 located inside the chassis 200, and the driving bevel gear 212 is meshed with the mating bevel gear 125.

[0033] Furthermore, a protective plate 220 is fixedly installed at the top edge of the chassis 200, and the calibration device 100 is located inside the protective plate 220. The protective plate 220 can provide protection for the calibration device 100. A triangular groove 224 is provided at the center of the top of the protective plate 220. The triangular groove 224 limits the positioning tooth block 136. Three groups of phase detection scale lines 221 are provided on the top of the protective plate 220. The three groups of phase detection scale lines 221 are respectively located at the three end corners of the triangular groove 224. Standard scale lines 222 are provided at the centers of the three groups of phase detection scale lines 221. The standard scale lines 222 coincide with the center lines of the limiting seat 132 and the arc-shaped slide plate 131. Concave slide grooves 223 are provided on the two opposite sets of inner side walls of the triangular groove 224. The convex sliding block 137 and the concave sliding block 137 are connected to each other. The groove 223 is slidably connected. Specifically, after completing the positioning of the gear to be tested, observe the tooth profile of the outer teeth of the gear to be tested on one side of the positioning tooth block 136 that meshes with the tooth profile of the internal spline of the gear to be tested. If there is no problem with the phase of the inner and outer teeth of the gear to be tested, the tooth bottom of the outer tooth profile of the gear to be tested is exactly on the same straight line corresponding to the standard scale line 222 of the phase detection scale line 221. If they are not on the same straight line, that is, there is a certain angular deviation between the phases of the inner and outer teeth of the gear to be tested, the phase detection scale line 221 corresponding to the tooth bottom of the external tooth can be used to detect whether it is qualified. If the groove wall of the tooth bottom contour of the external tooth is located inside the outermost phase detection scale line 221, it is considered to be a qualified product. If the groove wall of the tooth bottom contour of the external tooth is located outside the outermost phase detection scale line 221, it is a failed product.

[0034] The use process of the present invention is as follows: A person skilled in the art places the gear to be tested on the top of the protective plate 220, rotates the rotating rod 211 to rotate the driving bevel gear 212 on the rotating rod 211, and meshes with the matching bevel gear 125, so that the connecting column 124 fixedly connected to the matching bevel gear 125 drives the second driving gear 123 to rotate, so that the second driving gear 123 meshes with the outer gear ring 112, and the outer gear ring 112 rotates on the middle annular base 111, and based on the rotation of the outer gear ring 112, the outer gear ring 112 rotates with the middle annular base 111. The inner gear ring 115 fixedly connected to the outer gear ring 112 also rotates synchronously, forcing the three groups of first driving pinions 116 installed on the middle annular base 111 to mesh with it. As the first driving pinion 116 rotates, the matching tooth block 134 meshing with the first driving pinion 116 can drive the limit seat 132 and the arc-shaped slide plate 131 to move. Under the action of the limit slide 133, the arc-shaped slide plate 131 and the positioning tooth block 136 on its top can only move along the groove wall of the triangular groove 224. The tooth blocks 136 move synchronously. When the three groups of positioning tooth blocks 136 all move to contact the internal splines of the gear to be measured, the center of the gear to be measured is just concentric with the top of the protective plate 220. At this time, the positioning of the gear to be measured is completed. Before the positioning of the gear to be measured is completed, the tooth profile of the internal splines of the gear to be measured is meshed with any group of positioning tooth blocks 136. After the positioning of the gear to be measured is completed, the tooth profile of the external teeth of the gear to be measured on the side of the positioning tooth block 136 meshing with the tooth profile of the internal splines of the gear to be measured is observed. If the phase of the internal and external teeth of the gear to be measured is not If there is a problem, the tooth bottom of the external tooth profile of the gear to be tested is exactly on the same straight line as the standard scale line 222 of the phase detection scale line 221. If they are not on the same straight line, that is, the phases of the internal and external teeth of the gear to be tested have a certain angular deviation, the phase detection scale line 221 corresponding to the tooth bottom of the external tooth can be used to detect whether it is qualified. If the groove wall of the tooth bottom profile of the external tooth is located inside the outermost phase detection scale line 221, it is considered to be a qualified product. If the groove wall of the tooth bottom profile of the external tooth is located outside the outermost phase detection scale line 221, it is a failed product.

[0035] The above is only a preferred embodiment of the present invention. Any person skilled in the art may modify the present invention by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solution of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A gear phase detection tool, comprising a positioning device (100) and a chassis (200), wherein the positioning device (100) is located on the top of the chassis (200) and connected to the chassis (200), characterized in that: The calibration device (100) comprises an execution component (130); and further comprises a driving component (110) connected to the execution component (130); The driving assembly (110) comprises a middle annular base (111), an outer gear ring (112) is provided on the top of the middle annular base (111), a bottom rotating ring (113) is fixedly mounted on the bottom of the outer gear ring (112), the outer gear ring (112) is rotatably connected to the top surface of the middle annular base (111) via the bottom rotating ring (113), a top rotating slide rail (114) is fixedly mounted on the top of the outer gear ring (112), an inner gear ring (115) is fixedly mounted on the inner side wall of the outer gear ring (112), and a first driving pinion (116) is rotatably connected to the top of the middle annular base (111), three groups of the first driving pinions (116) are provided and arranged in a circular array, and the three groups of the first driving pinions (116) are all meshed with the inner gear ring (115); The driving assembly (110) further comprises a notched top plate (120), the outer gear ring (112) being rotatably connected to the bottom of the notched top plate (120) via a top rotating slide rail (114), the bottom of the side wall of the notched top plate (120) being fixedly connected to the top edge of the middle annular base (111), the top of the notched top plate (120) and the middle annular top of the middle annular base (111) being both provided with position limiting slide rails (121), the position limiting slide rails (121) being provided in three groups and all being arranged in a circular array, the position limiting slide rails (121) being located at the top of the notched top plate (120) The rails (121) are respectively located on the same straight line as the limiting slide rails (121) located at the top of the middle ring of the middle ring base (111); the same arc-shaped limiting plate (122) is fixedly installed on the two side walls of the notch of the notched top plate (120); the bottom of the arc-shaped limiting plate (122) is rotatably connected to a connecting column (124); the top of the connecting column (124) is fixedly installed with a second driving gear (123); the bottom of the connecting column (124) is fixedly installed with a matching bevel gear (125); the second driving gear (123) is meshed with the outer gear ring (112); The actuator assembly (130) is provided with three groups and arranged in a circular row. The actuator assembly (130) comprises an arc-shaped slide plate (131). A limit seat (132) is fixedly installed at the bottom of the arc-shaped slide plate (131). A limit slide seat (133) is fixedly installed at the bottom of the limit seat (132). The three groups of limit slide seats (133) are slidably connected to the three groups of limit slide rails (121) respectively. One side of the limit seat (132) is fixedly installed with multiple groups of matching gear blocks (1 34), a plurality of groups of the mating tooth blocks (134) are all meshed with the first driving pinion (116) located on the same side, a limiting column (135) is fixedly installed at the front end of the limiting seat (132), the limiting column (135) is fixedly passed through the arc-shaped slide plate (131), a positioning tooth block (136) is fixedly installed on the limiting column (135) located at the top of the arc-shaped slide plate (131), and convex sliding blocks (137) are fixedly installed on both sides of the positioning tooth block (136).

2. The gear phase detection tool according to claim 1, characterized in that: The bottom of the middle annular base (111) is fixedly connected to the top of the chassis (200); the connecting column (124) rotates and penetrates the upper surface of the chassis (200); a bottom plate (210) is fixedly installed at the bottom of the chassis (200); a rotating rod (211) is provided at the top of the bottom plate (210); the rotating rod (211) rotates and penetrates the side wall of the chassis (200); a driving bevel gear (212) is fixedly installed at the end wall of the rotating rod (211) located inside the chassis (200); the driving bevel gear (212) is meshed with the matching bevel gear (125).

3. A gear phase detection tool according to claim 2, characterized in that: A protective plate (220) is fixedly mounted at the top edge of the chassis (200), the calibration device (100) is located inside the protective plate (220), a triangular groove (224) is provided at the center of the top of the protective plate (220), three groups of phase detection scale lines (221) are provided at the top of the protective plate (220), the three groups of phase detection scale lines (221) are respectively located at three end corners of the triangular groove (224), and standard scale lines (222) are provided at the center of the three groups of phase detection scale lines (221), two groups of inner side walls opposite to each other of the triangular groove (224) are provided with concave sliding grooves (223), and the convex sliding block (137) is slidably connected to the concave sliding grooves (223).

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