Multi-specification applicable gear measuring instrument

Abstract

The utility model discloses a multi-specification applicable gear measuring instrument, which comprises a rotary workbench, and a positioning upright post and a measuring upright post which are arranged on two sides of the rotary workbench, and is characterized in that the rotary workbench is provided with a positioning assembly I for fixing a gear to be measured; the first positioning assembly comprises a movable groove, a screw rod arranged in the movable groove and two symmetrically-arranged sliding blocks, the movable groove is formed along the diameter of the rotary workbench, threads at the two ends of the screw rod are oppositely arranged, and one end of the screw rod penetrates through the side face of the rotary workbench and extends to the outer surface; the bottom ends of the two sliding blocks are in threaded connection with the two ends of the screw correspondingly, and the opposite faces of the two sliding blocks are in a step shape. A positioning bottom tip is further arranged on the upper surface of the rotary working table, a movable positioning tip is arranged on the positioning stand column, and a movable measuring probe is arranged on the measuring stand column; the gear measuring device is suitable for measuring various types of gears such as gears with holes and gears with shafts, and can fix gears with different inner diameters, so that the measured data is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of precision instrument detection equipment, in particular to a gear measuring instrument applicable to multiple specifications. Background Art

[0002] Gears, as an important mechanical transmission element, are widely used in mechanical equipment in various industries. In order to ensure the smooth operation and reliability of gears, it is very necessary to inspect the gears. The gear measurement data includes the gear's inner diameter, outer diameter, tooth thickness, tooth pitch, tooth profile, etc. Different transmission elements require different types of gears, and gears come in a variety of shapes and specifications. However, existing gear measuring equipment mostly uses positioning tips and positioning bottom tips to fix gears. However, this method can only be used for gears with shafts, not gears with holes, and the inner diameter of gears with holes cannot be measured; or the gears are fixed by clamping at both ends, but this method has a small range of applicable gear specifications and is mostly used to measure smaller gears. There is no unified measuring device that can be applied to multiple specifications. Utility Model Content

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a gear measuring instrument applicable to multiple specifications to solve the above problems.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] The gear measuring instrument is applicable to multiple specifications, including a rotating worktable and positioning columns and a measuring column arranged on both sides of the rotating worktable. The rotating worktable is provided with a positioning component 1 for fixing the gear to be measured. The positioning component 1 includes a movable groove, a screw arranged in the movable groove and two symmetrically arranged sliders. The movable groove is arranged along the diameter of the rotating worktable, the threads at both ends of the screw are arranged in opposite directions, and one end of the screw passes through the side of the rotating worktable and extends to the outer surface. The bottom ends of the two sliders are respectively threadedly connected to the two ends of the screw, and the back sides of the two sliders are stepped and used for placing gears with holes; a positioning bottom tip is also provided at the center point of the upper surface of the rotating worktable, and a movable positioning top is provided on the positioning column. The positioning top and the positioning bottom tip form a positioning component 2 for fixing the gear with a shaft, and the measuring column is provided with a movable measuring probe.

[0006] In the above utility model, further, the step surfaces of the two sliding blocks are arranged to face each other.

[0007] In the above utility model, further, the step surface of the slider is provided with at least two steps.

[0008] In the above utility model, further, the step surface contacts the inner surface of the gear shaft hole, and the contact surface is arc-shaped.

[0009] In the above utility model, further, the positioning column includes a positioning column body, a lifting device arranged in the positioning column body and a telescopic device connected to the lifting device, and the positioning top is fixed on the lower surface of the outer end of the telescopic device.

[0010] In the above utility model, further, the measuring column includes a measuring column body, a lifting device arranged in the measuring column body, and a second telescopic device connected to the lifting device, and the measuring probe is horizontally fixed on the second telescopic device.

[0011] In the above utility model, further, there are at least two measuring probes, one of which is arranged horizontally and the other is arranged vertically, and the horizontally arranged measuring probe is located above the vertically arranged measuring probe.

[0012] In the above utility model, further, a horizontal moving device is provided on one side of the rotary workbench, the measuring column is placed on the horizontal moving device, and the horizontal moving device is arranged perpendicular to the telescopic direction of the second telescopic device.

[0013] In the above-mentioned utility model, further, the gear measuring instrument also includes a driving motor and a driving gear connected to the output end of the driving motor. A ring gear is provided at the bottom of the rotating worktable. The driving motor drives the driving gear to rotate and drives the rotating worktable to rotate through the engagement of the driving gear and the ring gear. The diameter of the driving gear is smaller than the diameter of the ring gear.

[0014] The beneficial effects of the utility model are:

[0015] The utility model can be applied to the measurement of various types of gears such as gears with holes and gears with shafts through two positioning methods, namely positioning component one and positioning component two. The positioning component two can also be used to fix gears of different inner diameters, making the measurement data more accurate. The gear shaft hole is placed on the two sliders. Only by rotating the screw rods, the two sliders can automatically move in opposite directions so that their step surfaces are close to the inner surface of the gear shaft hole, thereby fixing the gear stably. The operation is convenient and the practicability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the positioning component 1 of the present invention;

[0018] Figure 3 for Figure 2 A side sectional view of

[0019] Figure 4This is a schematic diagram of the drive gear and gear ring of the utility model;

[0020] Figure 5 This is a schematic diagram of the gear positioning state of the utility model;

[0021] Figure 6 This is a schematic diagram of another state of the gear positioning of the present invention.

[0022] In the figure, 1-rotating workbench, 2-positioning column, 21-positioning column body, 22-telescopic device 1, 3-measuring column, 31-measuring probe, 32-measuring column body, 33-telescopic device 2, 4-positioning component 1, 41-movable groove, 42-screw, 43-slider, 5-positioning component 2, 51-positioning top, 52-positioning bottom tip, 6-horizontal moving device, 7-drive motor, 8-drive gear, 9-gear ring. DETAILED DESCRIPTION

[0023] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features within these embodiments may be combined with one another, unless they conflict.

[0024] Please see the attached Figure 1 As shown, a gear measuring instrument applicable to multiple specifications includes a rotating table 1 and positioning columns 2 and measuring columns 3 arranged on both sides of the rotating table 1. The rotating table 1 is provided with a positioning component 4 for fixing the gear to be measured. The rotating table 1 drives the gear to be measured to rotate, facilitating gear measurement.

[0025] Please see the attached Figure 2 and attached Figure 3As shown, the positioning component 4 includes a movable groove 41, a screw 42 arranged in the movable groove 41 and two symmetrically arranged sliders 43. The movable groove 41 is arranged along the diameter of the rotary worktable 1, and the sliders 43 slide along the length direction of the movable groove 41. The threads at both ends of the screw 42 are set in opposite directions, and one end of the screw 42 passes through the side of the rotary worktable 1 and extends to the outer surface. The bottom ends of the two sliders 43 are respectively threadedly connected to the two ends of the screw 42. When the screw 42 is rotated, the two sliders 43 will move closer to or away from each other, and the back surfaces of the two sliders 43 are stepped and used to place gears with holes, so that the two sliders 43 are sleeved in the shaft holes of the gears, and the lower surface of the gears is placed on the steps of the sliders 43. When the two sliders 43 move away from each other until their surfaces are in close contact with the shaft holes of the gears, the gears are fixed firmly on the sliders 43, as shown in the attached figure. Figure 5 As shown, the two sliders 43 can be used for gears with different shaft hole sizes, which is highly practical;

[0026] The center point of the upper surface of the rotating workbench 1 is also provided with a positioning bottom tip 52, and the positioning column 2 is provided with a movable positioning top 51. The positioning top 51 and the positioning bottom tip 52 form a positioning component 2 5 for fixing the gear with a shaft. The positioning top 51 and the positioning bottom tip 52 are respectively abutted against the two ends of the gear shaft to achieve the fixation of the gear. The positioning component 2 5 is mainly used to fix the gear with a shaft, as shown in the attached figure. Figure 6 As shown, a movable measuring probe 31 is provided on the measuring column 3, and the inner diameter, outer diameter, tooth thickness and tooth pitch of the gear are measured by the measuring probe 31.

[0027] In the above embodiment, preferably, the gear teeth on the gear are arranged on the outer cylindrical surface. In order to facilitate the measurement of data such as tooth pitch and tooth thickness, it is necessary to fix the gear from the middle part. Therefore, the step surfaces of the two sliders 43 are arranged back to back, and the slider 43 is placed in the shaft hole of the gear with a hole, so that the step surface of the slider 43 contacts the inner surface of the shaft hole of the gear to fix the gear. This positioning method can not only automatically adapt to the fixation according to the size of the shaft hole, but also does not affect the measurement of the tooth thickness, tooth pitch, etc. on the outer cylindrical surface of the gear. The operation is simple and convenient.

[0028] In the above embodiment, preferably, the step surface of the slider 43 is provided with at least two steps. When the moving distance of the slider 43 is limited and the shaft hole is large, the gear can be selectively placed on any step of the slider 43 according to the size of the shaft hole of the gear. That is, this solution can not only adapt to gears of different sizes by moving the slider 43, but also place gears of different sizes according to the step structure on the slider 43, and has a wide range of applications.

[0029] The step surface contacts the inner surface of the gear shaft hole. In order to improve the stability of the gear positioning, the contact surface is set to be an arc shape.

[0030] The positioning column 2 includes a positioning column body 21, a lifting device disposed within the positioning column body 21, and a telescopic device 22 connected to the lifting device. The positioning tip 51 is fixed to the lower surface of the outer end of the telescopic device 22. When positioning a gear with a shaft, the telescopic device 22 first drives the positioning tip 51 to move directly above the positioning bottom tip 52, and then the lifting device drives the telescopic device 22 and the positioning tip 51 downward until the positioning tip 51 abuts against the top of the gear shaft and stops moving. The gear is then aligned through the cooperation of the positioning tip 51 and the positioning bottom tip 52. When the inner diameter of a gear with a hole needs to be measured (only gears with a hole need to be measured), the telescopic device 22 drives the positioning tip 51 to move backward to facilitate the measurement of the inner diameter by the measuring probe 31.

[0031] The measuring column 3 includes a measuring column body 32, a lifting device disposed within the measuring column body 32, and a second telescopic device 33 connected to the lifting device. The measuring probe 31 is horizontally fixed to the second telescopic device 33. The working principle of the measuring column 3 is the same as that of the positioning column 2. A horizontal moving device 6 is also provided on one side of the rotating worktable 1. The measuring column 3 is placed on the horizontal moving device 6, and the horizontal moving device 6 is arranged perpendicular to the telescopic direction of the second telescopic device 33. The horizontal moving device 6, the second telescopic device 33, and the lifting device enable the measuring probe 31 to move along the x-axis, y-axis, and z-axis, thereby improving the flexibility of the measuring probe. The lifting device used in this embodiment is a conventional technology in the field of precision parts measurement and will not be described in detail in this embodiment. The horizontal moving device 6 and the lifting device have the same principle.

[0032] In the above embodiment, preferably, there are at least two measuring probes 31, one of which is horizontally arranged, and the horizontal measuring probe 31 is mainly used to measure the tooth thickness, tooth pitch, tooth profile and other data of the outer circle of the gear; the other measuring probe 31 is vertically arranged, and the vertical probe is used to measure the inner diameter and outer diameter of the gear, and the horizontally arranged measuring probe 31 is located above the vertically arranged measuring probe 31 to ensure that when the horizontal measuring probe 31 is working, the vertical measuring probe 31 will not affect the operation of the horizontal measuring probe 31; when the vertical measuring probe 31 is operating, the upper horizontal measuring probe 31 will not affect the operation of the vertical measuring probe 31.

[0033] As attached Figure 3 and attached Figure 4 As shown, the gear measuring instrument also includes a driving motor 7 and a driving gear 8 connected to the output end of the driving motor 7. A ring gear 9 is provided at the bottom of the rotary worktable 1. The driving motor 7 drives the driving gear 8 to rotate and drives the rotary worktable 1 to rotate through the engagement of the driving gear 8 and the ring gear 9. The diameter of the driving gear 8 is smaller than the diameter of the ring gear 9 to achieve the purpose of deceleration.

[0034] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0035] The above-described embodiments merely represent specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A gear measuring instrument applicable to multiple specifications, characterized in that: The invention comprises a rotary table (1) and a positioning column (2) and a measuring column (3) arranged on both sides of the rotary table (1); the rotary table (1) is provided with a positioning component (4) for fixing the gear to be measured; the positioning component (4) comprises a movable groove (41), a screw (42) arranged in the movable groove (41) and two symmetrically arranged sliders (43); the movable groove (41) is arranged along the diameter of the rotary table (1); the threads at both ends of the screw (42) are arranged in opposite directions, and one end of the screw (42) passes through the rotary table ( 1) side and extending to the outer surface, the bottom ends of the two sliders (43) are respectively threadedly connected to the two ends of the screw (42), and the back side of the two sliders (43) is stepped and used to place the gear with a hole; the center point of the upper surface of the rotary table (1) is also provided with a positioning bottom tip (52), the positioning column (2) is provided with a movable positioning top tip (51), the positioning top tip (51) and the positioning bottom tip (52) form a positioning component 2 (5) for fixing the gear with a shaft, and the measuring column (3) is provided with a movable measuring probe (31).

2. The multi-specification applicable gear measuring instrument according to claim 1, characterized in that: The step surfaces of the two sliding blocks (43) are arranged to face each other.

3. The multi-specification gear measuring instrument according to claim 2, characterized in that: The step surface of the slider (43) is provided with at least two steps.

4. The multi-specification applicable gear measuring instrument according to claim 3, characterized in that: The step surface contacts the inner surface of the gear shaft hole, and the contact surface is in an arc shape.

5. The multi-specification applicable gear measuring instrument according to claim 1, characterized in that: The positioning column (2) comprises a positioning column body (21), a lifting device arranged in the positioning column body (21), and a telescopic device (22) connected to the lifting device, and the positioning tip (51) is fixed on the lower surface of the outer end of the telescopic device (22).

6. The multi-specification applicable gear measuring instrument according to claim 1, characterized in that: The measuring column (3) comprises a measuring column body (32), a lifting device arranged in the measuring column body (32), and a second telescopic device (33) connected to the lifting device, and the measuring probe (31) is horizontally fixed on the second telescopic device (33).

7. The multi-specification applicable gear measuring instrument according to claim 6, characterized in that: At least two measuring probes (31) are provided, one measuring probe (31) is arranged horizontally, and the other measuring probe (31) is arranged vertically, and the horizontally arranged measuring probe is located above the vertically arranged measuring probe.

8. The multi-specification gear measuring instrument according to claim 6, characterized in that: A horizontal moving device (6) is also provided on one side of the rotary workbench (1), the measuring column (3) is placed on the horizontal moving device (6), and the horizontal moving device (6) is arranged perpendicular to the telescopic direction of the second telescopic device (33).

9. The multi-specification applicable gear measuring instrument according to claim 1, characterized in that: The gear measuring instrument further comprises a driving motor (7) and a driving gear (8) connected to an output end of the driving motor (7); a gear ring (9) is provided at the bottom of the rotary table (1); the driving motor (7) drives the driving gear (8) to rotate and drives the rotary table (1) to rotate through engagement between the driving gear (8) and the gear ring (9); the diameter of the driving gear (8) is smaller than the diameter of the gear ring (9).

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