Contourgraph for detecting shaft hole machining precision of transmission shaft

Abstract

The utility model discloses a contourgraph for detecting the processing precision of a shaft hole of a transmission shaft, and particularly relates to the field of contourgraphs, the contourgraph comprises a support frame, the top of the support frame is fixedly connected with a fixed rotating mechanism for detecting the transmission shaft, the fixed rotating mechanism comprises an outer shell, one side of the outer shell is fixedly connected with a motor I, and the other side of the outer shell is fixedly connected with a motor II. The first motor is connected with a rotating disc through an output shaft, an electric push rod is fixedly connected into the rotating disc, a cross-shaped rack is fixedly connected to the top end of the electric push rod, and a semicircular gear and a clamping plate are connected to the outer side of the cross-shaped rack in an engaged mode. According to the utility model, the electric push rod drives the cross-shaped rack to translate outwards to drive the semicircular gear and the clamping plate to rotate in the cross-shaped groove to fix the transmission shaft, and then the motor I drives the turntable to rotate in the outer shell to drive the transmission shaft to rotate, so that the inner wall of the rotating annular object to be detected can be converted into a translated plane; later measurement is facilitated, the measurement precision is improved, and the usability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of profilers, and more specifically, to a profiler for detecting the machining accuracy of a shaft hole of a transmission shaft. Background Art

[0002] The contour measuring instrument is a precision device for measuring the linear shape and cross-sectional contour shape of various mechanical parts. The instrument workbench adopts high-precision horizontal air-floating rails and rolling vertical rails. It has the characteristics of high moving accuracy, good stability and long service life. It is widely used in workshop inspection stations or metrology rooms due to its high measurement efficiency and simple operation.

[0003] After searching, the existing patent (publication number: CN219455042U) discloses a profilometer, which belongs to the field of profilometer measurement technology. A profilometer includes a body with a measuring component, and also includes a clamping block slidably connected to the body, wherein a cavity is opened in the clamping block, a telescopic rod is slidably connected in the cavity, a reset spring is arranged in the cavity, and the two ends of the reset spring are respectively fixedly connected to the cavity and the telescopic rod, and the telescopic rod extends to the outside of the clamping block and is fixedly connected to a jet head, and the jet head cooperates with the clamping end of the clamping block; the utility model can use the jet head to automatically perform jet blowing on the surface of the abutment plate, so that it can keep it clean and improve the stability during clamping. In the process of realizing the utility model, the inventor found that the prior art has the following problems:

[0004] Most existing profilometers use high-precision transverse air-floating rails and rolling vertical rails to drive the object to be measured to perform lateral or vertical translational movement, and then use a stylus to measure the surface of the object to be measured. However, when measuring annular objects such as the shaft hole of a transmission shaft, this method is difficult to achieve its purpose. In addition, there is no corresponding solution to this problem in the above-mentioned patent document, so a fixed rotating mechanism needs to be installed.

[0005] Therefore, in order to solve the above problems, a profiler for detecting the machining accuracy of the shaft hole of the transmission shaft is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a profilometer for detecting the machining accuracy of a shaft hole of a transmission shaft, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the utility model provides the following technical solutions: a profiler for detecting the machining accuracy of the shaft hole of the transmission shaft, comprising a support frame, a fixed rotating mechanism for detecting the transmission shaft is fixedly connected to the top of the support frame, the fixed rotating mechanism comprises an outer shell, and a motor is fixedly connected to one side of the outer shell;

[0008] The motor is connected to a turntable through an output shaft, an electric push rod is fixedly connected inside the turntable, a cross rack is fixedly connected to the top of the electric push rod, a semicircular gear is meshedly connected to the outer side of the cross rack, a clamp is fixedly connected to one side of the semicircular gear, and a cross slot is opened on one side of the turntable.

[0009] Preferably, a slide chute body is sleeved on the outside of the support frame, and an operating table is fixedly connected to the outside of the slide chute body.

[0010] Preferably, a second motor is fixedly connected to one side of the operating table, the second motor is connected to a first threaded rod via an output shaft, and the first threaded rod is externally threadedly connected to a first threaded sleeve.

[0011] Preferably, an adjustment frame is fixedly connected to one side of the top of the operating table, a second threaded rod is connected inside the adjustment frame via a bearing, and a knob is fixedly connected to the top of the second threaded rod.

[0012] Preferably, the second threaded rod is externally threadedly connected to a second threaded sleeve, and an indicator gauge is fixedly connected to one side of the second threaded sleeve.

[0013] Preferably, a stylus is connected to the inside of the indicator via a fulcrum, an iron core is fixedly connected to the top of the other side of the stylus, and an inductor is sleeved on the outside of the iron core.

[0014] Preferably, the turntable is movably connected to the inside of the outer shell via a bearing, and the turntable rotates inside the outer shell via a motor.

[0015] Preferably, the cross rack and the clamping plate are sleeved inside the cross slot body, and the semicircular gear and the clamping plate rotate inside the cross slot body through the electric push rod and the cross rack.

[0016] Technical effects and advantages of the utility model:

[0017] 1. Compared with the prior art, the profiler for detecting the machining accuracy of the shaft hole of the transmission shaft is configured by putting one end of the transmission shaft to be measured on one side of the turntable, and then the user starts the electric push rod to drive the cross rack to translate outward, drives the semicircular gear to rotate, drives the clamping plate to rotate in the cross slot body, fixes the transmission shaft from the inside, and then the user starts the motor 1 to drive the turntable to rotate inside the outer shell, drives the transmission shaft to rotate, so that the inner wall of the rotating annular object to be measured can be converted into a translational plane, which is convenient for later measurement, improves the measurement accuracy, and improves the usability of the device.

[0018] 2. Compared with the prior art, the profiler for detecting the machining accuracy of the shaft hole of the transmission shaft limits the slide chute body through the operating table and the slide chute body to increase the stability of the device, drives the threaded rod one to rotate through the motor two, and then drives the threaded sleeve one and the support frame to translate, drives the object to be measured to move, drives the threaded rod two to rotate inside the adjustment frame through the knob, transmits the kinetic energy, and facilitates subsequent operations, drives the threaded sleeve two to rise and fall inside the adjustment frame through the threaded rod two, and then drives the indicator and the stylus to rise and fall, which is convenient for the subsequent measurement of the object to be measured, drives the stylus to rotate inside the indicator table through the object to be measured and the fulcrum, and then drives the iron core to rise and fall inside the inductor coil, and converts the curvature of the surface of the object to be measured and displays it on the indicator table. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the internal cross-sectional structure of the adjusting frame of the utility model.

[0021] Figure 3 It is a schematic diagram of the internal sectional structure of the operating table of the utility model.

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the fixed rotating mechanism of the utility model.

[0023] Figure 5 It is a side sectional structural schematic diagram of the fixed rotating mechanism of the utility model.

[0024] The accompanying drawings are marked as follows: 1. operating table; 2. adjustment frame; 3. knob; 4. threaded rod 2; 5. threaded sleeve 2; 6. indicator; 7. slide trough body; 8. support frame; 9. fixed rotating mechanism; 901. outer shell; 902. motor 1; 903. turntable; 904. electric push rod; 905. cross rack; 906. semicircular gear; 907. clamping plate; 908. cross slot body; 10. contact pin; 11. iron core; 12. inductor; 13. motor 2; 14. threaded rod 1; 15. threaded sleeve 1. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1

[0027] As attached Figure 4and Figure 5 A profiler for detecting the machining accuracy of the shaft hole of the transmission shaft shown in the figure comprises a support frame 8, a fixed rotating mechanism 9 for detecting the transmission shaft is fixedly connected to the top of the support frame 8, and the fixed rotating mechanism 9 comprises an outer shell 901, and a motor 902 is fixedly connected to one side of the outer shell 901;

[0028] The motor 902 is connected to a turntable 903 through an output shaft, and an electric push rod 904 is fixedly connected inside the turntable 903. A cross rack 905 is fixedly connected to the top of the electric push rod 904. A semicircular gear 906 is meshed and connected to the outer side of the cross rack 905. A splint 907 is fixedly connected to one side of the semicircular gear 906. A cross slot 908 is provided on one side of the turntable 903. The turntable 903 is movably connected to the inside of the outer shell 901 through a bearing. The turntable 903 rotates inside the outer shell 901 through the motor 902. The cross rack 905 and the splint 907 are sleeved inside the cross slot 908. The semicircular gear 906 and the splint 907 rotate inside the cross slot 908 through the electric push rod 904 and the cross rack 905.

[0029] Among them: one end of the transmission shaft to be measured is sleeved on one side of the turntable 903, and then the user starts the electric push rod 904, driving the cross rack 905 to translate outward, driving the semicircular gear 906 to rotate, driving the clamping plate 907 to rotate in the cross slot body 908, and fixing the transmission shaft from the inside. Then the user starts the motor 902, driving the turntable 903 to rotate inside the outer shell 901, and driving the transmission shaft to rotate, so that the rotating inner wall of the annular object to be measured can be converted into a translational plane, which is convenient for later measurement, improves measurement accuracy, and improves the usability of the device.

[0030] Embodiment 2

[0031] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working method, as described below:

[0032] See also Figure 1-Figure 5 As shown,

[0033] As a preferred embodiment, the support frame 8 is externally sleeved with a slide chute body 7, and the slide chute body 7 is externally fixedly connected with an operating table 1; further, the slide chute body 7 is limited by the operating table 1 and the slide chute body 7 to increase the stability of the device.

[0034] As a preferred embodiment, a motor 2 13 is fixedly connected to one side of the operating table 1, and the motor 2 13 is connected to a threaded rod 14 through an output shaft, and the external thread of the threaded rod 14 is connected to a threaded sleeve 15; further, the threaded rod 14 is connected to the inside of the operating table 1 through a bearing, and the support frame 8 is fixedly connected to the top of the threaded sleeve 15. The motor 2 13 drives the threaded rod 14 to rotate, thereby driving the threaded sleeve 15 and the support frame 8 to translate, and driving the object to be tested to move.

[0035] As a preferred embodiment, an adjustment frame 2 is fixedly connected to one side of the top of the operating table 1, a threaded rod 2 is connected to the inside of the adjustment frame 2 through a bearing, and a knob 3 is fixedly connected to the top of the threaded rod 24; further, the threaded rod 24 is driven to rotate inside the adjustment frame 2 by the knob 3, so that kinetic energy is transmitted to facilitate subsequent operations.

[0036] As a preferred embodiment, the external threaded connection of the threaded rod 4 is connected to a threaded sleeve 5, and an indicator gauge 6 is fixedly connected to one side of the threaded sleeve 5; further, the threaded sleeve 5 is driven to rise and fall inside the adjustment frame 2 by the threaded rod 4, thereby driving the indicator gauge 6 and the stylus 10 to rise and fall, which is convenient for the subsequent measurement of the object to be measured.

[0037] As a preferred embodiment, a stylus 10 is connected to the inside of the indicator 6 via a fulcrum, an iron core 11 is fixedly connected to the top of the other side of the stylus 10, and an inductor 12 is sleeved on the outside of the iron core 11; further, the inductor 12 is connected to the indicator 6 via a cable, and the stylus 10 is driven to rotate inside the indicator 6 through the object to be measured and the fulcrum, thereby driving the iron core 11 to rise and fall inside the inductor 12, and the curvature of the surface of the object to be measured is converted and displayed on the indicator 6.

[0038] As a preferred embodiment, the turntable 903 is movably connected to the outer shell 901 through a bearing, and the turntable 903 rotates inside the outer shell 901 through a motor 902; further, the turntable 903 is driven to rotate inside the outer shell 901 by the motor 902, thereby driving the transmission shaft of the object to be measured to rotate, which is convenient for subsequent measurement.

[0039] As a preferred embodiment, the cross rack 905 and the splint 907 are sleeved inside the cross slot body 908, and the semicircular gear 906 and the splint 907 rotate inside the cross slot body 908 through the electric push rod 904 and the cross rack 905; further, the semicircular gear 906 and the splint 907 are driven to rotate inside the cross slot body 908 by the electric push rod 904 and the cross rack 905, thereby driving the splint 907 to expand outward, fixing the object to be measured from the inside of the transmission shaft, so as to facilitate later measurement.

[0040] The working process of the utility model is as follows:

[0041] First, the user installs and stores the profiler for detecting the machining accuracy of the shaft hole of the transmission shaft in an indoor environment. When it is necessary to measure the machining accuracy of the shaft hole of the transmission shaft, the user takes out the device and places the operating table 1 on a horizontal table. Then the user takes out the transmission shaft to be measured and puts one end of it on one side of the turntable 903. Then the user starts the electric push rod 904 to drive the cross rack 905 to translate outward, drives the semicircular gear 906 to rotate, drives the clamping plate 907 to rotate in the cross slot body 908, and fixes the transmission shaft from the inside. Then the user starts the motor 2 13 to drive the threaded rod 14 to rotate, drives the threaded sleeve 15 to translate to one side, drives the support frame 8 to translate along the inside of the slide slot body 7, and drives the transmission shaft. The moving shaft translates to one side until the feeler pin 10 is inserted into the inside of the transmission shaft, and then the user rotates the knob 3 on the top of the adjustment frame 2 to drive the threaded rod 2 4 to rotate, drive the threaded sleeve 2 5 to move downward, drive the indicator 6 and the feeler pin 10 to move downward until the bottom of the feeler pin 10 touches the inner wall of the transmission shaft, and then the user starts the motor 1 902 to drive the turntable 903 to rotate inside the outer shell 901, and drive the transmission shaft to rotate. During the rotation of the transmission shaft, the unevenness of its inner wall pushes the feeler pin 10 to rotate along the fulcrum, driving the iron core 11 to move up and down inside the inductor 12. The inductor 12 transmits the moving data to the indicator 6 for display, and the user can observe the machining accuracy of the inner wall of the transmission shaft through the indicator 6.

[0042] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A profiler for detecting the machining accuracy of a shaft hole of a transmission shaft, comprising a support frame (8), characterized in that: A fixed rotating mechanism (9) for detecting the transmission shaft is fixedly connected to the top of the support frame (8), the fixed rotating mechanism (9) comprising an outer shell (901), and a motor 1 (902) is fixedly connected to one side of the outer shell (901); The motor 1 (902) is connected to a turntable (903) via an output shaft, an electric push rod (904) is fixedly connected inside the turntable (903), a cross rack (905) is fixedly connected to the top of the electric push rod (904), a semicircular gear (906) is meshedly connected to the outer side of the cross rack (905), a clamping plate (907) is fixedly connected to one side of the semicircular gear (906), and a cross slot (908) is provided on one side of the turntable (903).

2. A profiler for detecting the machining accuracy of a shaft hole of a transmission shaft according to claim 1, characterized in that: The support frame (8) is sleeved with a slide chute body (7) on the outside, and the slide chute body (7) is fixedly connected with an operating table (1) on the outside.

3. A profiler for detecting the machining accuracy of a shaft hole of a transmission shaft according to claim 2, characterized in that: One side of the operating table (1) is fixedly connected to a second motor (13), the second motor (13) is connected to a threaded rod (14) via an output shaft, and the threaded rod (14) is externally threadedly connected to a threaded sleeve (15).

4. A profiler for detecting the machining accuracy of a shaft hole of a transmission shaft according to claim 3, characterized in that: An adjustment frame (2) is fixedly connected to one side of the top of the operating table (1); a second threaded rod (4) is connected inside the adjustment frame (2) via a bearing; and a knob (3) is fixedly connected to the top of the second threaded rod (4).

5. A profiler for detecting the machining accuracy of a shaft hole of a transmission shaft according to claim 4, characterized in that: The second threaded rod (4) is externally threadedly connected to a second threaded sleeve (5), and an indicator gauge (6) is fixedly connected to one side of the second threaded sleeve (5).

6. A profiler for detecting the machining accuracy of a shaft hole of a transmission shaft according to claim 5, characterized in that: The indicator (6) is internally connected to a stylus (10) via a fulcrum, the other side of the stylus (10) is fixedly connected to an iron core (11) at the top, and the iron core (11) is externally sleeved with an inductor coil (12).

7. A profiler for detecting the machining accuracy of a shaft hole of a transmission shaft according to claim 1, characterized in that: The rotating disk (903) is movably connected to the inside of the outer shell (901) via a bearing, and the rotating disk (903) performs rotational motion inside the outer shell (901) via a motor 1 (902).

8. A profiler for detecting the machining accuracy of a shaft hole of a transmission shaft according to claim 1, characterized in that: The cross rack (905) and the clamping plate (907) are sleeved inside the cross slot body (908), and the semicircular gear (906) and the clamping plate (907) perform rotational motion inside the cross slot body (908) through the electric push rod (904) and the cross rack (905).

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