Gear coupling taper height gauge

Abstract

The utility model discloses a kind of gear combination taper height gauges, including gauge body, measuring mechanism, force sensing mechanism, force applying mechanism and positioning mechanism on gauge body;Measuring mechanism includes first connecting assembly and measuring assembly, measuring assembly moves along preset path on gauge body;Positioning mechanism is placed measured gear, the central axis of positioning mechanism is aligned with the central axis of measuring assembly, the inner cone of measuring assembly is attached to the outer cone of measured gear, force sensing mechanism is located between first connecting assembly and force applying mechanism, force applying mechanism extrudes first connecting assembly by force sensing mechanism, read value by measuring assembly.The utility model places measured gear on positioning mechanism, using the measurement assembly of uniform axle center is set in measured gear, with measured gear placed on positioning mechanism is aligned with axle center, effectively solve the problem that the axis of conical ring gauge cannot coincide with the axis of part taper, prone to detection error.

Description

Technical Field

[0001] This utility model relates to the field of mechanical testing equipment technology, specifically to a gear-connected conical surface height gauge. Background Technology

[0002] In automotive transmissions, the conical surface (conical surface) on the transmission gears is a key structure for achieving synchronized power transmission and gear shifting. To ensure the correctness of the conical surface, its height dimension is a critical characteristic in conical surface inspection.

[0003] Currently, when measuring the height of the gear engagement cone surface, the gear is usually placed in a flat plate, and a taper ring gauge is fitted onto the gear cone surface. A heavy weight is then attached to the plate according to the testing requirements, and a dial indicator is used to measure the cone surface height.

[0004] However, when the angle error between the gear cone surface and the ring gauge being measured is large, the centerline of the tapered ring gauge cannot coincide with the centerline of the cone surface of the part, resulting in detection error. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a gear-connected conical surface height gauge, which aims to solve the problem that the axis of the current taper ring gauge cannot coincide with the axis of the conical surface of the part, which easily leads to detection errors.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gear-connected conical surface height gauge, comprising a gauge body, a measuring mechanism, a force sensing mechanism, a force application mechanism, and a positioning mechanism disposed on the gauge body; The measuring mechanism includes a first connecting component movably connected to the fixture body, and a measuring component for measuring the height of the gear engagement cone surface. The measuring component moves along a preset path on the fixture body following the first connecting component. The positioning mechanism places the gear to be tested, and the central axis of the positioning mechanism is aligned with the central axis of the measuring component. The inner cone of the measuring component is fitted with the outer cone of the gear to be tested. The force sensing mechanism is located between the first connecting component and the force applying mechanism. The force applying mechanism uses the force sensing mechanism to press the first connecting component with a preset pressure and reads the value through the measuring component.

[0007] According to one aspect of the above technical solution, the first connecting component includes a first fixing block fixed to the inspection fixture body, a slide rod slidably connected to the first fixing block, the first fixing block having a keyway in the vertical direction, and the slide rod being slidably connected to the first fixing block via a flat key.

[0008] According to one aspect of the above technical solution, the measuring component includes a displacement sensor disposed on one side of the slide bar, and a tapered ring gauge passing through the end of the slide bar away from the force sensing mechanism. The displacement sensor and the tapered ring gauge move with the slide bar in the up-down direction.

[0009] According to one aspect of the above technical solution, the tapered ring gauge and the slide bar are concentrically arranged.

[0010] According to one aspect of the above technical solution, the force sensing mechanism includes a second connecting component fixedly connected to the gauge body, and a sensing component movably connected to the second connecting component, wherein the moving path of the sensing component is perpendicular to the moving path of the slide bar.

[0011] According to one aspect of the above technical solution, the second connecting component includes a second fixing block fixed to the fixture body, a rotating plate disposed at one end of the second fixing block, and a rotating pin disposed on the rotating plate, the rotating pin being connected to the sensing component.

[0012] According to one aspect of the above technical solution, the sensing component includes a movable plate fixedly connected to the rotating pin, a force sensor embedded in the movable plate, and a transition pressure block disposed between the force sensor and the movable plate. The movable plate rotates about the rotating pin as an axis, and the force sensor is aligned with the force application mechanism.

[0013] According to one aspect of the above technical solution, the force application mechanism includes a force application plate fixed to one end of the fixture body, a force application rod passing through and movably connected to the force application plate, and an extension rod provided at one end of the force application rod. Rotating the extension rod causes the force application rod to move toward the force sensor.

[0014] According to one aspect of the above technical solution, the positioning mechanism includes a lower positioning block placed on the fixture body, an upper positioning sleeve disposed on the lower positioning block, and a set of planar balls disposed between the lower positioning block and the upper positioning sleeve. The lower positioning block passes through the fixture body, and the gear to be tested is placed on the plane of the upper positioning sleeve away from the lower positioning block.

[0015] In summary, the gear-conical surface height gauge proposed in this utility model effectively solves the problem of misalignment between the axis of the tapered ring gauge and the axis of the conical surface of the part, which easily leads to detection errors. Specifically, by using a tapered ring gauge concentrically positioned at the bottom of the slide rod, and utilizing the difference between rolling and sliding friction from the planar ball bearing assembly, the gear being tested aligns with the tapered ring gauge more quickly, avoiding detection errors caused by misalignment of the axis.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a gear-connected conical surface height gauge in one embodiment of the present invention; Figure 2 This is a cross-sectional view of a gear-connected conical surface height gauge in one embodiment of the present invention; Figure 3 This is a schematic diagram of the measuring mechanism in one embodiment of the present invention; Figure 4 This is a schematic diagram of the force sensing mechanism in one embodiment of the present invention; Figure 5 This is a schematic diagram of the positioning mechanism in one embodiment of the present invention.

[0018] Component symbol explanation in the attached diagram: The fixture body 100, plate 110, fixing groove 120, measuring mechanism 200, first connecting assembly 210, first fixing block 211, slide rod 212, keyway 213, measuring assembly 220, displacement sensor 221, taper ring gauge 222, handle 230, force sensing mechanism 300, second connecting assembly 310, second fixing block 311, rotating plate 312, rotating pin 313, sensing assembly 320, movable plate 321, force sensor 322, transition pressure block 323, force application mechanism 400, force application plate 410, force application rod 420, force extension rod 430, positioning mechanism 500, lower positioning block 510, upper positioning sleeve 520, flat ball assembly 530, and gear under test 600. Detailed Implementation

[0019] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "upper," "lower," and similar expressions used herein are for illustrative purposes only and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0021] In this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items.

[0022] Please see Figures 1-5 The diagram shows a schematic representation of a gear-connected conical surface height gauge according to an embodiment of the present invention. The gauge includes a gauge body 100, a measuring mechanism 200, a force sensing mechanism 300, a force application mechanism 400, and a positioning mechanism 500, all mounted on the gauge body 100. In order to fix the fixture body 100 on the workbench, a flat plate 110 is fixed at the bottom of the fixture body 100. Fixing grooves 120 are provided on both sides of the flat plate 110, and the L-shaped fixture body 100 in this embodiment is fixed by the fixing grooves 120.

[0023] To measure the height of the engagement cone surface of the gear being measured, the measuring mechanism 200 includes a first connecting component 210 movably connected to the fixture body 100, and a measuring component 220 for measuring the height of the engagement cone surface of the gear. The measuring component 220 moves along a preset path on the fixture body 100 following the first connecting component 210. The gear being measured 600 is placed on the positioning mechanism 500, and the central axis of the positioning mechanism 500 is aligned with the central axis of the measuring component 220. The inner cone of the measuring component 220 is in contact with the outer cone of the gear being measured 600. A force sensing mechanism 300 is located between the first connecting component 210 and the force applying mechanism 400. The force applying mechanism 400 presses the first connecting component 210 with a preset pressure through the force sensing mechanism 300, and reads the value through the measuring component 220.

[0024] Furthermore, the first connecting assembly 210 includes a first fixing block 211 fixed to the fixture body 100 and a slide rod 212 slidably connected to the first fixing block 211. Since the fixture body 100 has a square groove, when the measuring mechanism 200 is fixedly connected, the first fixing block 211 is embedded in the square groove, and the slide rod 212 passes through the first fixing block 211. In order to restrict the slide rod 212 from rotating within the first fixing block 211, a keyway 213 is provided on the first fixing block 211 in the vertical direction. The slide rod 212 is slidably connected to the first fixing block 211 through a flat key to ensure that the slide rod 212 has only the degree of freedom to move vertically with respect to the first fixing block 211.

[0025] The measuring component 220 includes a displacement sensor 221 located on one side of the slide bar 212, and a tapered ring gauge 222 inserted into the end of the slide bar 212 away from the force sensing mechanism 300. The displacement sensor 221 and the tapered ring gauge 222 move up and down with the slide bar 212, and the tapered ring gauge 222 is concentrically arranged with the slide bar 212. A hole is opened above the slide bar 212 to accommodate the displacement sensor 221, and a tapered ring gauge 222 is fixed to the bottom of the slide bar 212 with screws. The measuring mechanism 200 is fixed to the fixture body 100. By moving the handle 230 on the slide bar 212, the slide bar 212 moves up and down within the first fixed block 211, thereby causing the inner cone of the tapered ring gauge 222 to fit against the outer cone of the gear 600 being measured.

[0026] To achieve the required force for measurement, the force sensing mechanism 300 includes a second connecting assembly 310 fixedly connected to the fixture body 100, and a sensing assembly 320 movably connected to the second connecting assembly 310. The movement path of the sensing assembly 320 is perpendicular to the movement path of the slide bar 212. The second connecting assembly 310 includes a second fixing block 311 fixed to the fixture body 100, a rotating plate 312 located at one end of the second fixing block 311, and a rotating pin 313 passing through the rotating plate 312. The rotating pin 313 is connected to the sensing assembly 320. The sensing assembly 320 includes a movable plate 321 fixedly connected to the rotating pin 313, a force sensor 322 embedded in the movable plate 321, and a transition pressure block 323 located between the force sensor 322 and the movable plate 321. The movable plate 321 rotates about the rotating pin 313 as an axis, and the force sensor 322 is aligned with the force application mechanism 400. It should be noted that the transition pressure block 323 is located below the force sensor 322 and has a certain range of degrees of freedom within the movable plate 321.

[0027] The force application mechanism 400 includes a force application plate 410 fixed to one end of the fixture body 100, a force application rod 420 passing through and movably connected to the force application plate 410, and a force-adding rod 430 provided at one end of the force application rod 420. Rotating the force-adding rod 430 causes the force application rod 420 to move toward the force sensor 322.

[0028] In this embodiment, the force-applying rod 420 is typically a screw. A screw hole can be opened on the force-applying plate 410. By rotating the force-applying rod 430, the force-applying rod 420 is driven to rotate in the screw hole, so that the force-applying rod 420 abuts against the force sensor 322, and then presses against the slide rod 212 through the transition pressure block 323 to provide the required force for measurement. At the same time, by rotating the rotating plate 312, the force sensor 322 is aligned with the force-applying rod 420, avoiding misalignment between the force-applying rod 420 and the force sensor 322, which would prevent the required force from being achieved. After applying force to the slide rod 212, the height of the gear engagement cone surface can be obtained by reading the value of the displacement sensor 221. In addition, before the test, a standard part needs to be tested and zeroed, and the test value is determined by comparison test method.

[0029] Additionally, the positioning mechanism 500 includes a lower positioning block 510 placed on the fixture body 100, an upper positioning sleeve 520 disposed on the lower positioning block 510, and a planar ball bearing assembly 530 disposed between the lower positioning block 510 and the upper positioning sleeve 520. The lower positioning block 510 passes through the fixture body 100, and the gear under test 600 is placed on the plane of the upper positioning sleeve 520 away from the lower positioning block 510. In this embodiment, the upper and lower ends of the planar ball bearing assembly 530 abut against the inner top of the upper positioning sleeve 520 and the outer top of the lower positioning block 510, respectively, so that the upper positioning sleeve 520 can float on the lower positioning block 510, thereby achieving better automatic centering. If there is no planar ball bearing assembly 530 between the upper positioning sleeve 520 and the lower positioning block 510, the bottom surface of the gear 600 and the top surface of the upper positioning sleeve 520 will experience sliding friction during centering, which is not conducive to the centering force. If there is a planar ball bearing assembly 530 between the upper positioning sleeve 520 and the lower positioning block 510, there will be rolling friction, resulting in higher accuracy in centering the part. Furthermore, the inner and outer cones have angular errors and cannot be perfectly fitted. Without proper treatment, this would lead to inaccurate positioning. The planar ball bearing assembly 530 allows for relative rolling between the upper positioning sleeve 520 and the lower positioning block 510, better aligning the centerline of the gear 600 and the taper ring gauge 222.

[0030] In summary, the gear-conical surface height gauge proposed in this utility model effectively solves the problem of misalignment between the axis of the tapered ring gauge and the axis of the conical surface of the part, which easily leads to detection errors. Specifically, by using a tapered ring gauge concentrically positioned at the bottom of the slide rod, and utilizing the difference between rolling and sliding friction from the planar ball bearing assembly, the gear being tested aligns with the tapered ring gauge more quickly, avoiding detection errors caused by misalignment of the axis.

[0031] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A gear-engaged conical surface height gauge, characterized in that, The gear engagement cone surface height gauge includes a gauge body, a measuring mechanism, a force sensing mechanism, a force application mechanism, and a positioning mechanism disposed on the gauge body; The measuring mechanism includes a first connecting component movably connected to the fixture body, and a measuring component for measuring the height of the gear engagement cone surface. The measuring component moves along a preset path on the fixture body following the first connecting component. The positioning mechanism places the gear to be tested, and the central axis of the positioning mechanism is aligned with the central axis of the measuring component. The inner cone of the measuring component is fitted with the outer cone of the gear to be tested. The force sensing mechanism is located between the first connecting component and the force applying mechanism. The force applying mechanism uses the force sensing mechanism to press the first connecting component with a preset pressure and reads the value through the measuring component.

2. The gear engagement cone surface height gauge according to claim 1, characterized in that, The first connecting component includes a first fixing block fixed to the inspection fixture body, a slide rod slidably connected to the first fixing block, the first fixing block having a keyway in the vertical direction, and the slide rod being slidably connected to the first fixing block via a flat key.

3. The gear engagement cone surface height gauge according to claim 2, characterized in that, The measuring component includes a displacement sensor located on one side of the slide bar, and a tapered ring gauge inserted into the end of the slide bar away from the force sensing mechanism. The displacement sensor and the tapered ring gauge move with the slide bar in the up-down direction.

4. The gear engagement cone surface height gauge according to claim 3, characterized in that, The tapered ring gauge is concentrically set with the slide bar.

5. The gear engagement cone surface height gauge according to claim 1, characterized in that, The force sensing mechanism includes a second connecting component fixedly connected to the gauge body, and a sensing component movably connected to the second connecting component. The moving path of the sensing component is perpendicular to the moving path of the slide bar.

6. The gear engagement cone surface height gauge according to claim 5, characterized in that, The second connecting component includes a second fixing block fixed to the fixture body, a rotating plate disposed at one end of the second fixing block, and a rotating pin disposed on the rotating plate, the rotating pin being connected to the sensing component.

7. The gear engagement cone surface height gauge according to claim 6, characterized in that, The sensing assembly includes a movable plate fixedly connected to the rotating pin, a force sensor embedded in the movable plate, and a transition pressure block disposed between the force sensor and the movable plate. The movable plate rotates about the rotating pin as an axis, and the force sensor is aligned with the force application mechanism.

8. The gear engagement cone surface height gauge according to claim 1, characterized in that, The force application mechanism includes a force application plate fixed to one end of the fixture body, a force application rod passing through and movably connected to the force application plate, and an additional force rod provided at one end of the force application rod. Rotating the additional force rod causes the force application rod to move toward the force sensor.

9. The gear engagement cone surface height gauge according to claim 1, characterized in that, The positioning mechanism includes a lower positioning block placed on the fixture body, an upper positioning sleeve disposed on the lower positioning block, and a set of planar ball bearings disposed between the lower positioning block and the upper positioning sleeve. The lower positioning block passes through the fixture body, and the gear to be tested is placed on the plane of the upper positioning sleeve away from the lower positioning block.

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