Outer diameter automatic measuring equipment

Abstract

The utility model discloses automatic external diameter measuring equipment, which comprises a clamping device, a moving device, a positioning device and a measuring device, the positioning device is arranged between the clamping device and the measuring device, the clamping device is connected to the moving device in a sliding mode, the clamping device can move in the direction close to or away from the positioning device and the measuring device, and when the clamping device moves in the direction close to the positioning device and the measuring device, the clamping device can move in the direction close to the positioning device and the measuring device. And then the measuring device is moved to the positioning device. The outer diameter automatic measuring equipment measures the outer diameter of the root canal file by fitting the actual application scene, the measuring result is infinitely close to the size of a hole drilled in dental pulp during actual rotation of the root canal file, the measuring result is accurate, the measuring period is short, the result can be obtained at each point in about 1.5 seconds, and the measuring efficiency is high. The method has the beneficial effects of high measurement precision and high efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of outside diameter measurement, especially relates to a outside diameter automatic measuring equipment. BACKGROUND

[0002] In the production process of root canal files, the outside diameter of the root canal files usually needs to be measured to determine whether the root canal files are qualified.

[0003] There are visual measurement methods on the market, and conventional visual measurement is to shoot multiple pictures in the process of rotating the root canal file and then fit the model to measure the size. The disadvantage of this method is that the straightness and burr treatment of the root canal file are required to be extremely high, the single-branch operation period of the software is relatively long, the clamping tooling of the root canal file is required to be high, and the self-rotation speed of the root canal file on the tooling is also limited. The result is too much affected by external interference, resulting in inaccurate measurement results.

[0004] At present, the outside diameter of the root canal file is mostly measured by using a thickness gauge. Although the thickness gauge does not have the above problems, the thickness gauge is not designed specifically for the root canal file, and the measurement accuracy thereof may not meet the requirement of the slight difference of the outside diameter of the file needle in root canal treatment. Therefore, the measurement result has a large error, resulting in inaccurate measurement results. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of outside diameter automatic measuring equipment to solve the technical problem that the outside diameter of root canal file is measured inaccurate.

[0006] The utility model provides a kind of outside diameter automatic measuring equipment, including clamping device, moving device, positioning device and measuring device;The positioning device is located between clamping device and measuring device, the clamping device is slidably connected in moving device, the clamping device can move to the direction of being close to or away from positioning device and measuring device, when clamping device moves to the direction of being close to positioning device and measuring device, first move to positioning device then move to measuring device.

[0007] Further, the clamping device includes a rotating assembly and a lifting assembly; the rotating assembly includes two rows of rotating wheels that are slidably connected to the moving device and rotatable; the lifting assembly includes a mounting member that is slidably connected to the moving device, the mounting member has a pressing wheel thereon, the pressing wheel is located above the rotating wheels and cooperates with the rotating wheels to clamp the workpiece, and the mounting member further has an elastic member for pressing the workpiece with the pressing wheel.

[0008] Further, the mounting member includes a first connecting block that is slidably connected to the moving device, the first connecting block has a sliding block thereon, the sliding block is slidably connected to the first connecting block on one side and fixedly connected to a second connecting block on the other side, the second connecting block is fixedly connected to the pressing wheel, and the pressing wheel is lifted or lowered by the second connecting block, the sliding block and the first connecting block to put in or take out the workpiece.

[0009] Further, the second connecting block is provided with a handle for lifting the pressure roller.

[0010] Further, the second connecting block is provided with a third driving member for jacking up the second connecting block.

[0011] Further, the rotating assembly is a mini bur grinder comprising two rows of rotatable rotating wheels.

[0012] Further, the positioning device comprises a positioning sheet provided with a second driving member for driving the positioning sheet to extend and retract, and the clamping device moves towards the positioning device after the positioning sheet extends, so that the workpiece can contact the positioning sheet.

[0013] Further, the positioning device comprises a base plate provided with a sliding rail and a sliding plate in sliding connection, the sliding rail is fixedly connected with the base plate, and the sliding plate is fixedly connected with the positioning sheet and the second driving member, and the second driving member drives the positioning sheet to extend and retract through the sliding plate and the sliding rail.

[0014] Further, the measuring device is a high-precision digital micrometer.

[0015] Further, the device further comprises a controller and a control console in signal connection with the positioning device and the measuring device.

[0016] The device has the advantages that:

[0017] The outer diameter automatic measuring device is provided with a moving device and a positioning device, and after the clamping device clamps the root canal file, the clamping device can be moved to the positioning device for positioning and then moved to the measuring device for measurement. Specifically, the positioning device and the measuring device are connected by the controller, and when the root canal file is successfully positioned, the signal is connected and the controller is notified, the clamping device retreats and then advances again, and when the clamping device advances to the positioning position again, the measuring device is triggered to prepare for work, and the measuring device measures the root canal file during the process of the clamping device advancing from the positioning device to the measuring device. Since the distance between the positioning device and the measuring device is fixed and known, the accuracy of each measurement point position of the root canal file can be accurately known, so that the outer diameter of each measurement position point of the root canal file can be accurately determined and measured.

[0018] The outer diameter automatic measuring device measures the outer diameter of the root canal file according to the actual application scene, the measurement result is close to the size of the hole drilled in the dental pulp when the root canal file rotates in the actual application, the measurement result is accurate, the measurement period is short, and the result is obtained in about 1.5 seconds for each point, and the device has the advantages of high measurement accuracy and high efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is the overall structure schematic diagram of the external diameter automatic measuring equipment.

[0020] Fig. 2 It is the structure schematic diagram for embodying the clamping device of the utility model.

[0021] Fig. 3 It is the overall structure schematic diagram of the positioning device and the measuring device. DETAILED DESCRIPTION

[0022] The utility model will be further explained in detail through specific implementation mode combining with drawings. It should be understood that the embodiment described below through reference to drawings is exemplary, aims at explaining the utility model, and cannot be understood as the limitation of the utility model, and the features in the embodiment in the utility model can be combined mutually without conflict.

[0023] As Figs. 1-3 The utility model provides a kind of external diameter automatic measuring equipment, including clamping device 1, moving device 2, positioning device 3 and measuring device 4;Positioning device 3 is located between clamping device 1 and measuring device 4, clamping device 1 is slidably connected in moving device 2, the clamping device 1 can move to the direction of approaching or moving away from positioning device 3 and measuring device 4, when clamping device 1 moves to the direction of approaching positioning device 3 and measuring device 4, first move to positioning device 3 then move to measuring device 4.

[0024] The utility model discloses a kind of external diameter automatic measuring equipment including shell body, all operating structures are arranged in shell body, to facilitate the technical scheme of the utility model, shell body and irrelevant structure are removed, only show the structure related to the technical scheme of the utility model.

[0025] The utility model discloses a kind of external diameter automatic measuring equipment, and it further includes bottom flat plate 5, moving device 2, positioning device 3 and measuring device 4 are all fixedly connected on bottom flat plate 5.Moving device 2 is located at the edge of one side of bottom flat plate 5, and moving device 2 is existing translation module, and moving device 2 includes movable support plate 21 at the top of translation module, clamping device 1 is fixedly connected on support plate 21, and clamping device 1 moves on moving device 2 by support plate 21.The motor of translation module is at one end of moving device 2, and measuring device 4 is located at the end of moving device 2 away from the motor, and positioning device 3 is located at the side of measuring device 4 close to the motor, and clamping device 1 can move between the two ends of moving device 2, i.e. clamping device 1 can move to the direction of approaching positioning device 3 and measuring device 4, and can also move to the direction of moving away from positioning device 3 and measuring device 4.

[0026] The clamping device 1 comprises a rotating assembly and a lifting assembly, both of which are fixedly connected to the support plate 21. The rotating assembly is a conventional mini burr grinder, one side of which is provided with two rows of rotating wheels 111, and the other side is provided with a first driving member 112, the first driving member 112 is provided with a support frame 113 fixedly connected to the support plate 21, and the first driving member 112 is fixed to the support plate 21 through the support frame 113. The first driving member 112 is a motor, which can drive the two rows of rotating wheels 111 to rotate in the same direction.

[0027] The lifting assembly comprises a mounting member 121, which comprises a first connecting block 1211, a sliding block 1212 and a second connecting block 1213. The first connecting block 1211 is vertically arranged as a whole and is attached to the side of the rotating assembly, and the lower end of the first connecting block 1211 is fixedly connected to the support plate 21. The sliding block 1212 is slidingly connected to the side of the first connecting block 1211 away from the rotating assembly, and can slide up and down on the side of the first connecting block 1211. The second connecting block 1213 is fixedly connected to the side of the sliding block 1212 away from the first connecting block 1211, and sliding the second connecting block 1213 drives the sliding block 1212 to slide. The top of the second connecting block 1213 is bent and extends outward and is fixedly connected with a pressing wheel 122 matched with the rotating wheels 111, the pressing wheel 122 is located above the two rows of rotating wheels 111 and in the middle of the two rows of rotating wheels 111, and a space for clamping the workpiece is formed between the pressing wheel 122 and the two rows of rotating wheels 111. When the second connecting block 1213 slides up and down, the pressing wheel 122 lifts. Taking the root canal file 6 as an example, when the pressing wheel 122 rises, the root canal file 6 can be put in or taken out between the pressing wheel 122 and the two rows of rotating wheels 111; when the pressing wheel 122 descends, the root canal file 6 is clamped between the pressing wheel 122 and the two rows of rotating wheels 111. After the root canal file 6 is clamped between the pressing wheel 122 and the two rows of rotating wheels 111, when the two rows of rotating wheels 111 rotate in the same direction, the root canal file 6 can be driven to rotate.

[0028] In order to enable the pressure wheel 122 to press the root canal file 6, the mounting piece 121 is provided with an elastic piece 123. The second connecting block 1213 is provided with an upper fixed block 124 and a lower fixed block 125 away from the sliding block 1212. The upper fixed block 124 is fixedly connected to the upper part of the second connecting block 1213. The lower fixed block 125 is located below the second connecting block 1213 at one end and extends to the support frame 113 and is fixedly connected to one side of the support frame 113 at the other end. The elastic piece 123 is a tension spring. The two ends of the elastic piece 123 are fixedly connected to the upper fixed block 124 and the lower fixed block 125 respectively. The pressure wheel 122 is lifted, the second connecting block 1213 slides upward, and the elastic piece 123 is stretched. The pressure wheel 122 is released, the second connecting block 1213 slides downward under the action of the elastic piece 123, the elastic piece 123 resets, and at this time the elastic piece 123 at least still exists slight stretching, so that the pressure wheel 122 can maintain the downward pressure, thereby pressing the root canal file 6. By setting the elastic piece 123, after the root canal file 6 is placed between the pressure wheel 122 and the two rows of rotating wheels 111, the pressure wheel 122 can exert pressure on the root canal file 6 under the action of the elastic piece 123, thereby realizing the pressure wheel 122 pressing the root canal file 6, and further enabling the pressure wheel 122 and the two rows of rotating wheels 111 to clamp the root canal file 6.

[0029] The positioning device 3 comprises a bottom plate 31 fixed on the bottom plate 5 through two mounting columns. A linear groove 311 is formed on the top of the bottom plate 31, and a slide rail 32 is arranged in the groove 311. The slide rail 32 is fixed in the groove 311, and the length direction of the slide rail 32 is perpendicular to the moving direction of the clamping device 1, that is, perpendicular to the length direction of the moving device 2. A sliding plate 33 is arranged on the slide rail 32 and connected with the slide rail 32, and the sliding plate 33 can slide on the slide rail 32. A long strip-shaped positioning piece 34 is fixedly connected with the sliding plate 33 on the side close to the measuring device 4 along the length direction of the slide rail 32. One end of the positioning piece 34 is fixedly connected with the sliding plate 33, and the other end extends from the side of the measuring device 4 towards the direction close to the moving device 2. The height of the positioning piece 34 is basically the same as the height of the space for clamping the root canal file 6 between the pressure roller 122 and the two rows of rotating wheels 111. The end of the sliding plate 33 away from the moving device 2 is fixedly connected with a second driving member 35 for driving the sliding plate 33 to slide. The second driving member 35 is an electric motor, and the output shaft of the second driving member 35 is threadedly connected with the sliding plate 33 through a lead screw 36. When the output shaft of the second driving member 35 rotates, the lead screw 36 is driven to rotate. Since the sliding plate 33 cannot rotate on the slide rail 32, the sliding plate 33 can slide forward and backward on the slide rail 32, thereby driving the positioning piece 34 to slide, so that the positioning piece 34 can slide towards or away from the moving device 2, thereby enabling the positioning piece 34 to extend or retract. When the positioning piece 34 extends, and the root canal file 6 is placed between the pressure roller 122 and the two rows of rotating wheels 111 with the tip outward, and when the clamping device 1 moves towards the positioning device 3, the tip of the root canal file 6 can contact the positioning piece 34. By taking a plurality of measurement position points on the root canal file 6 at a set distance, when the tip of the root canal file 6 contacts the positioning piece 34, the position of the tip of the root canal file 6 can be determined, thereby positioning the root canal file 6. In this way, the clamping device 1 will not trigger the measuring device 4 to start measuring until it reaches the set position point.

[0030] The measuring device 4 is a high-precision digital micrometer, which can obtain more accurate measurement results. The outer diameter automatic measuring equipment further comprises a controller and a control console in signal connection with the positioning device 3 and the measuring device 4. The controller and the control console are prior art, and the positions of the controller and the control console are not limited as long as they are in signal connection with the positioning device 3 and the measuring device 4. When the tip of the root canal file 6 contacts the positioning piece 34, a positioning success signal is connected and a controller is notified. At this time, the clamping device 1 retreats, the positioning piece 34 retracts, and then the clamping device 1 advances again. When the clamping device 1 advances to the set position point after passing the positioning point, the measuring device 4 starts measuring. The controller reads the measurement results in real time and displays them on the touch screen of the control console. When the controller reads the data of all set position points and judges the number of measurements, the measurement is completed. The measuring device 4 outputs data after the measurement is completed.

[0031] The outer diameter automatic measuring equipment is used for measuring the outer diameter of the root canal file 6 in the actual application scene, the measuring result is infinitely close to the size of the hole drilled by the root canal file 6 in the actual rotation in the dental pulp, the measuring result is accurate, the measuring period is short, the result is obtained in about 1.5 seconds for each point, and the outer diameter automatic measuring equipment has the beneficial effects of high measuring precision and high efficiency.

[0032] In one specific embodiment, in order to facilitate lifting the compression wheel 122, a handle 126 is fixedly connected to the top of the second connecting block 1213, and the handle 126 facilitates applying force to the compression wheel 122, so as to facilitate lifting the compression wheel 122 and then putting or taking out the root canal file 6, which is not only labor-saving but also more convenient.

[0033] In one specific embodiment, the lifting assembly further comprises a third driving member 127, the third driving member 127 is an electric motor, the third driving member 127 is fixedly connected to the support plate 21 and located below the lower fixed block 125, and the output shaft of the third driving member 127 extends to below the second connecting block 1213 through the lower fixed block 125. The output shaft of the third driving member 127 is fixedly connected with a screw rod 128, a nut 129 is threadedly connected to the screw rod 128, and a limiting piece is arranged on one side of the nut 129 to limit the rotation of the nut 129. When the output shaft of the third driving member 127 rotates, the screw rod 128 is driven to rotate, and since the nut 129 cannot rotate on the screw rod 128, the nut 129 can move up and down on the screw rod 128. The upward movement of the nut 129 can lift the second connecting block 1213 and thus lift the compression wheel 122; the downward movement of the nut 129 causes the second connecting block 1213 to slide downward under the action of the elastic piece 123, and the compression wheel 122 descends. Because the tip of the root canal file 6 is very thin, the root canal file 6 can be easily bent when the tip contacts the positioning sheet 34. By arranging the third driving member 127, the compression wheel 122 can be slightly lifted, so that the root canal file 6 has a front and rear movement gap under the compression wheel 122. In this way, when the tip of the root canal file 6 contacts the positioning sheet 34, the tip can be slightly moved to avoid bending, thereby achieving the purpose of protecting the root canal file 6.

[0034] The second driving member 35 and the third driving member 127 are motors in this embodiment, and in other embodiments, the second driving member 35 and the third driving member 127 can also be cylinders or other structures that can realize linear motion, and are not limited to motors, and in principle, as long as the positioning piece 34 can be extended and retracted and the pressure roller 122 can be lifted.

[0035] The working principle of the utility model is as follows: a person manually holds the handle 126 to lift the pressure roller 122, places the root canal file 6 in the middle of the two rows of rotating wheels 111 of the clamping device 1, loosens the handle 126 to press the root canal file 6, clicks the start button on the operation interface of the control console, the second driving member 35 drives the positioning piece 34 to extend, the third driving member 127 drives the pressure roller 122 to slightly lift according to the set position, the moving device 2 carries the clamping device 1 and the root canal file 6 to advance at a set speed, when reaching the set position, the speed is changed to slow, the root canal file 6 contacts the positioning piece 34, the positioning success signal is connected and the controller is informed. The pressure roller 122 returns to the set position of pressing the root canal file 6, the clamping device 1 retreats to the set position, the positioning piece 34 retreats to the original position. The clamping device 1 advances again according to the set measurement point and triggers the high-precision digital micrometer to work, the controller reads the measurement result in real time and displays it on the touch screen of the control console. After the measurement is completed, the clamping device 1 retreats to the original position, and the whole measurement process is completed.

[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and deformations can be made to these examples without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalent ranges.

Claims

1. An automatic outer diameter measuring device, characterized in that: It includes a clamping device, a moving device, a positioning device, and a measuring device; the positioning device is located between the clamping device and the measuring device, the clamping device is slidably connected to the moving device, and the clamping device can move towards or away from the positioning device and the measuring device. When the clamping device moves towards the positioning device and the measuring device, it first moves to the positioning device and then moves to the measuring device.

2. The automatic outer diameter measuring device according to claim 1, characterized in that: The clamping device includes a rotating assembly and a lifting assembly; the rotating assembly includes two rows of rotating wheels that are slidably connected to the moving device and are rotatable; the lifting assembly includes a mounting component that is slidably connected to the moving device, the mounting component is provided with a pressure roller, the pressure roller is located above the rotating wheels and cooperates with the rotating wheels to clamp the workpiece, and the mounting component is also provided with an elastic component for pressing the pressure roller against the workpiece.

3. The automatic outer diameter measuring device according to claim 2, characterized in that: The mounting component includes a first connecting block slidably connected to the moving device. The first connecting block is provided with a slider. One side of the slider is slidably connected to the first connecting block, and the other side is fixedly connected to a second connecting block. The second connecting block is fixedly connected to a pressure roller. The pressure roller moves up and down through the second connecting block, the slider, and the first connecting block to put in or take out the workpiece.

4. The automatic outer diameter measuring device according to claim 3, characterized in that: The second connecting block is provided with a handle for lifting the pressure roller.

5. The automatic outer diameter measuring device according to claim 3, characterized in that: A third driving member for lifting the second connecting block is provided below the second connecting block.

6. The automatic outer diameter measuring device according to claim 2, characterized in that: The rotating assembly is a mini punch grinder comprising two rows of rotatable rollers.

7. The automatic outer diameter measuring device according to claim 1, characterized in that: The positioning device includes a positioning piece, and the positioning piece is provided with a second driving member for driving the positioning piece to extend and retract. After the positioning piece extends, the clamping device moves towards the positioning device so that the workpiece contacts the positioning piece.

8. The automatic outer diameter measuring device according to claim 7, characterized in that: The positioning device includes a base plate, on which a slide rail and a slide plate are slidably connected. The slide rail is fixedly connected to the base plate, and the slide plate is fixedly connected to a positioning piece and a second driving member. The second driving member causes the positioning piece to extend and retract through the slide plate and the slide rail.

9. The automatic outer diameter measuring device according to claim 1, characterized in that: The measuring device is a high-precision digital micrometer.

10. An automatic outer diameter measuring device according to claim 9, characterized in that: It also includes controllers and control panels that are connected to the positioning and measuring devices via signals.

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