Dental handpiece rotation power tester

Abstract

The utility model provides a dental handpiece rotation power tester, including equipment shell, drive mechanism, mobile phone fixed clamp and torsion sensor of setting in equipment shell, wherein: drive mechanism includes support frame, drive motor of setting in support frame bottom and transversely setting in screw sliding platform of support frame top left end, and screw sliding platform is connected with drive motor transmission, mobile phone fixed clamp fixed setting is in screw sliding platform's screw sliding platform, it can move with screw sliding platform left and right, torsion sensor fixed setting is in support frame top's right end, and its left end torsion bar and screw sliding platform on the installation dental handpiece presents left and right opposite arrangement. The utility model discloses tester structure reasonable, easy operation, high test precision is suitable for the rotation power test of all kinds of dental handpiece, meets relevant industry standard requirement, has good practicality and popularization value.

Description

Technical Field

[0001] This utility model relates to the field of medical device testing equipment, and in particular to a dental handpiece rotation power tester. Background Technology

[0002] Dental handpieces are crucial tools in dental treatment, and their rotational power directly affects cutting efficiency and treatment outcomes. Currently, power testing of dental handpieces largely relies on traditional mechanical or simple electronic testing equipment, which suffers from problems such as complex structure, inconvenient operation, low testing accuracy, and low automation. Furthermore, existing equipment is often bulky, inconvenient to move and install, and its stability during testing can easily affect the accuracy of test results.

[0003] With the implementation of industry standards such as YY1045-2021, higher requirements have been placed on the performance testing of dental handpieces. Therefore, it is necessary to design a dental handpiece rotation power tester that is compact in structure, easy to operate, highly accurate, and meets the requirements of the standards. Utility Model Content

[0004] To address the aforementioned problems with existing testing equipment, this invention provides a dental handpiece rotation power tester that is structurally sound, easy to operate, and highly accurate.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution:

[0006] A dental handpiece rotation power tester includes a device housing, a drive mechanism disposed within the device housing, a handpiece fixing clamp, and a torque sensor, wherein:

[0007] The drive mechanism includes a support frame, a drive motor disposed at the bottom of the support frame, and a lead screw sliding platform disposed laterally at the top left end of the support frame, wherein the lead screw sliding platform is connected to the drive motor in a transmission manner.

[0008] The mobile phone fixing clamp is fixedly mounted on the lead screw slide of the lead screw sliding platform, and can move left and right with the lead screw slide; the torque sensor is fixedly mounted on the right end of the top of the support frame, and the torsion bar at its left end is arranged in a left-right opposite manner to the dental handpiece mounted on the lead screw slide.

[0009] Preferably, the equipment housing includes an irregularly shaped shell, a protective cover, and height-adjustable feet, wherein:

[0010] The protective cover is provided on the operating table at the top front end of the irregularly shaped housing, and height-adjustable support feet are provided at the four corners of the bottom. The protective cover can slide left and right to cover the torque sensor, the handpiece fixing clamp or the dental handpiece.

[0011] The left end of the operating table has a horizontally opened square hole for installing the mobile phone fixing clamp and the torque sensor, and the right end has a horizontally opened guide groove for sliding the protective cover corresponding to the position of the torque sensor.

[0012] More preferably, the rear end of the top of the irregularly shaped shell is provided with an upwardly protruding top plate platform, and an inclined operation panel is provided between the top plate platform and the operation table, wherein:

[0013] One end of the top plate is provided with a printer mounting hole for installing a printer, and one end of the operation panel is provided with a touch screen mounting hole for installing a PLC touch screen, corresponding to the printer mounting hole.

[0014] More preferably, the support frame includes a mounting base, a left-side bracket, and a right-side bracket, wherein:

[0015] The mounting base plate is fixedly mounted on the bottom plate of the irregular shell, and the left side bracket is vertically arranged at its left end. The right side of the top of the left side bracket is provided with the horizontally arranged lead screw sliding platform.

[0016] The drive motor is located in the middle of the mounting base plate, the right side bracket is vertically arranged at the right end, and the torque sensor is located on the left side of the right side bracket.

[0017] More preferably, the right-side support includes a right-side support rod, a right-side support top plate, and a right-side support vertical plate, wherein:

[0018] The right-side support rod consists of four rods, arranged at four corners and vertically installed at the right end of the mounting base plate, with the right-side support top plate fixedly installed on its top.

[0019] The left end of the right support top plate is fixedly connected to the slide rail mounting plate of the lead screw sliding platform, and the right support upright plate is vertically installed on the right end.

[0020] The torque sensor is fixedly installed on the left side wall at the upper end of the right support plate.

[0021] More preferably, the lead screw sliding platform includes a slide rail mounting plate, a linear guide rail, a lead screw slide table, and a transmission lead screw, wherein:

[0022] The left end of the slide rail mounting plate is fixedly connected to the left side bracket, and the linear guide rail is horizontally mounted on it;

[0023] The lead screw slide is slidably mounted on the linear guide rail, and the transmission lead screw is installed in the threaded hole inside the slide.

[0024] The left end of the transmission screw is rotatably mounted on the top of the left side bracket via a bearing, and a second transmission gear is mounted on it. The second transmission gear is connected to the first transmission gear on the output shaft of the drive motor via a chain.

[0025] Preferably, the mobile phone fixing clamp includes a mobile phone clip and a locking screw, wherein:

[0026] The upper mounting hole of the dental handpiece is provided with a locking screw for clamping the head end of the dental handpiece, and the lower end is mounted on the lead screw slide.

[0027] More preferably, the mobile phone fixing clamp further includes a clamp base plate, a transition pad, and a mobile phone auxiliary support block, wherein:

[0028] The fixture base plate is fixedly installed on the top of the lead screw slide, and several positioning holes are provided at intervals on its left and right ends respectively.

[0029] The transition pad is installed at the positioning hole position on the left end of the fixture base plate, and the mobile phone card block is installed at the positioning hole position on the right end of the fixture base plate.

[0030] The handpiece auxiliary support block is detachably installed on top of the transition pad block to assist in fixing the tail end of the dental handpiece.

[0031] More preferably, the dental handpiece rotation power tester further includes a rotation speed sensor disposed on the rear side of the top of the support frame, wherein:

[0032] The probe of the speed sensor is positioned near the left end torsion bar of the torque sensor, and it is mounted on the right side support plate of the right end of the support frame via an L-shaped bracket.

[0033] More preferably, the dental handpiece rotation power tester further includes a PLC touch screen and a printer respectively installed at the touch screen mounting hole and printer mounting hole positions on the device housing, wherein:

[0034] The PLC touch screen is electrically connected to the drive motor, torque sensor, speed sensor and printer respectively.

[0035] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0036] (1) Compact and stable structure, precise positioning: The drive mechanism adopts an integrated design of support frame and screw sliding platform, which has strong structural rigidity and stable operation; by precisely controlling the movement of screw slide through drive motor, it can achieve micron-level progressive contact between dental handpiece and torque sensor torsion bar, simulating standard test conditions of continuously increasing external resistance, ensuring the standardization of test process and consistency of results.

[0037] (2) The clamp is highly adaptable and easy to install: The mobile phone fixing clamp adopts a modular design. In particular, by setting a clamp base plate with multiple positioning holes, replaceable transition pads and mobile phone auxiliary support blocks, the tester can quickly adapt to and firmly clamp straight or curved dental handpieces of different brands, models and sizes. It has strong versatility and improves the utilization rate of the equipment.

[0038] (3) High test accuracy and reliable data: By using high-precision torque and speed sensors to work together, torque and speed data during the test can be collected in real time and synchronously. Combined with the PLC touch screen, the maximum output power of the dental handpiece can be accurately calculated and directly displayed, avoiding the error of manual conversion and ensuring the accuracy and repeatability of the test results. Attached Figure Description

[0039] Figure 1 This is a three-dimensional structural diagram of a dental handpiece rotation power tester according to the present invention;

[0040] Figure 2 This is a schematic diagram of the main structure of a dental handpiece rotation power tester according to the present invention;

[0041] Figure 3 This utility model Figure 2 The diagram shows a partially enlarged structural schematic of part A in a dental handpiece rotation power tester.

[0042] Figure 4 This is a schematic diagram of the three-dimensional structure of a dental handpiece rotation power tester hidden behind its outer casing. Figure 1 ;

[0043] Figure 5 This is a schematic diagram of the three-dimensional structure of a dental handpiece rotation power tester hidden behind its outer casing. Figure 2 ;

[0044] Figure 6 This is a cross-sectional view of the dental handpiece rotation power tester after the device housing is concealed.

[0045] The accompanying figures are labeled as follows:

[0046] 100-Equipment housing, 110-Irregularly shaped housing, 111-Operating table, 112-Top plate, 113-Operating panel, 114-Mounting square hole, 115-Guide groove, 120-Protective cover, 130-Height adjustable support foot;

[0047] 200-Drive mechanism, 210-Support frame, 211-Mounting base plate, 212-Left side bracket, 213-Right side support rod, 214-Right side support top plate, 215-Right side support vertical plate, 220-Drive motor, 221-First transmission gear, 230-Screw sliding platform, 231-Slide rail mounting plate, 232-Linear guide rail, 233-Screw slide table, 234-Transmission screw, 235-Second transmission gear;

[0048] 300-Mobile phone fixing clamp, 301-Mobile phone clip, 302-Locking screw, 303-Clamp base plate, 304-Transition pad, 305-Mobile phone auxiliary support block;

[0049] 400 - Torque sensor; 500 - Speed ​​sensor; 501 - L-shaped bracket; 600 - PLC touch screen; 700 - Printer; 001 - Dental handpiece. Detailed Implementation

[0050] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0051] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0052] In some embodiments, such as Figures 1 to 6 As shown, this embodiment provides a dental handpiece rotation power tester, which mainly includes a device housing 100 and a drive mechanism 200, a handpiece fixing clamp 300, a torque sensor 400, a speed sensor 500, a PLC touch screen 600, and a printer 700 integrated inside the device housing 100.

[0053] The drive mechanism 200 mainly includes a support frame 210, a drive motor 220, and a lead screw sliding platform 230. The support frame 210 is fixed to the equipment base, and the drive motor 220, which serves as the power source, is installed at its bottom. At the top left end of the support frame 210, a precision lead screw sliding platform 230 is installed horizontally. This platform is connected to the output shaft of the drive motor 220 through a chain transmission mechanism, thereby converting the rotational motion of the motor into precise linear motion.

[0054] The handpiece clamp 300 for securing the test object is directly mounted on the lead screw slide 233 of the lead screw sliding platform 230. Therefore, the clamp and the dental handpiece 001 held on it can move left and right as a whole with the slide. A high-precision torque sensor 400 is fixedly mounted on the right end of the top of the support frame 210. The central axis of the force-measuring torsion bar at its left end, used to sense resistance, is strictly aligned with the central axis of the bur or clamping shaft of the dental handpiece 001 mounted on the left clamp, and remains horizontally opposite. This layout constitutes the basic physical framework of the test: the handpiece on the left generates rotational power, and the sensor on the right provides and measures resistance.

[0055] In some of these embodiments, such as Figure 1 and Figure 2 As shown, the main body of the device housing 100 is an irregularly shaped shell 110, whose design balances functionality and aesthetics. The front top area of ​​the shell is a horizontal operating table 111, with a transverse guide groove 115 on the table. A transparent or semi-transparent protective cover 120 is inserted into the corresponding two guide grooves 115 via sliders on the front and rear sides, and can be easily slid left and right by hand.

[0056] When slid to the far right, it can at least cover part of the mounting hole 114 below, thus protecting the internal torque sensor 400 and mobile phone clamp 300 from environmental influences during testing; when slid to the left, the area is completely opened, facilitating operations such as mobile phone clamping.

[0057] Height-adjustable feet 130 are installed at the four corners of the bottom of the housing. These are usually threaded feet with knobs. The height of each foot can be adjusted individually by rotating them, ensuring that the equipment remains level even on slightly uneven surfaces. This is the basis for ensuring testing accuracy.

[0058] In addition, such as Figure 1 and Figure 2 As shown, the top rear side of the irregularly shaped shell 110 bulges upward to form a top plate platform 112. Between the top plate platform 112 and the aforementioned operating table 111, there is an operating panel 113 that is tilted backward at a certain angle, such as 30-45°. This tilt angle conforms to ergonomics and is convenient for the operator to observe and touch.

[0059] Furthermore, a square printer mounting hole is provided at a suitable position on the top plate 112 for embedded installation of a micro printer 700. A touch screen mounting hole is provided at a corresponding position on the operation panel 113 for installing a PLC touch screen 600, making the entire control and display interface neat and integrated.

[0060] In some of these embodiments, such as Figure 4 , Figure 5 and Figure 6As shown, the support frame 210 serves as the internal skeleton, and its foundation is a flat mounting base plate 211, which is fixed to the bottom plate of the housing by bolts. A left-side bracket 212 is welded or bolted vertically upwards to the left end of the mounting base plate 211. The top of this bracket supports the left end of the lead screw sliding platform 230. The drive motor 220 is typically mounted in the middle of the mounting base plate 211 via a motor mount.

[0061] The right end of the mounting base plate 211 is vertically upwardly provided with a right-side support assembly. The left side of this assembly is used to install the torque sensor 400, and its top is connected to the right end of the lead screw sliding platform 230, thereby forming a stable gantry structure to ensure that the platform deforms minimally when subjected to force.

[0062] Specifically, such as Figures 4 to 6 As shown, the right-side support assembly includes four vertical right-side support rods 213, distributed at the four corners of a rectangle. Their bottoms are fixed to the mounting base plate 211, and their tops collectively support a horizontal right-side support top plate 214. At the left end of the right-side support top plate 214, it is bolted to the slide rail mounting plate 231 of the lead screw sliding platform 230, achieving joint support for the sliding platform from both sides and greatly enhancing rigidity.

[0063] Furthermore, as needed, a right-side support plate 215 is vertically connected downwards to the right edge of the right-side support top plate 214. The housing of the torque sensor 400 is securely mounted on the left side of this plate 215 with bolts, and its position can be finely adjusted to ensure alignment.

[0064] In some of these embodiments, such as Figure 4 , Figure 5 and Figure 6 As shown, the lead screw sliding platform 230 mainly includes a slide rail mounting plate 231, a linear guide rail 232, a lead screw slide 233, and a transmission lead screw 234. The slide rail mounting plate 231 is a long strip-shaped mounting plate, supported at both ends by a left-side bracket 212 and a right-side support top plate 214. A high-precision linear guide rail 232 is mounted parallel to the upper surface of the slide rail mounting plate 231. The bottom of the lead screw slide 233 is equipped with a slider that matches the linear guide rail 232, allowing it to slide freely along the guide rail without wobbling.

[0065] A precision lead screw 234 passes through a ball nut inside the lead screw slide 233. The left end of the lead screw 234 is supported on the left side bracket 212 by a bearing seat, while the right end is free to rotate or is similarly supported. A second transmission gear 235 is fixed on the lead screw 234 and is connected to the first transmission gear 221 on the output shaft of the drive motor 220 via a synchronous belt or chain. When the motor rotates in both directions, it drives the lead screw to rotate, thereby enabling the lead screw slide 233 and all its loads to perform precise left and right linear feed.

[0066] In some of these embodiments, such as Figure 3 , Figure 4 and Figure 6 As shown, the mobile phone fixing clamp 300 has a multi-layer adjustable structure, mainly including a mobile phone clip 301 and a locking screw 302. The bottom layer is the clamp base plate 303, which is fixed to the upper surface of the lead screw slide 233 by bolts. The clamp base plate 303 has two or more rows of threaded holes or locating pin holes drilled along its length. The row on the right side is used to install the mobile phone clip 301.

[0067] The handpiece 301 is typically a metal block with an Ω-shaped or arc-shaped groove, the groove aligned with the torque sensor 400. The head of the dental handpiece 001 is placed in this groove, and then the locking screw 302 above the groove is tightened to securely clamp the handpiece head, preventing it from rotating or jumping during testing.

[0068] To accommodate the length of the dental handpiece and provide additional support, a transition pad 304 can be installed on a row of holes on the left side of the clamp base plate 303, and a handpiece auxiliary support block 305 can be fixed to the transition pad 304 with screws. The support block 305 also has a groove that matches the shape of the handpiece handle to support the tail of the dental handpiece, forming double support at both ends, making the installation more stable and reliable.

[0069] As needed, by selectively installing the SIM card block 301 and the transition pad block 304 in different mounting holes, the distance between the SIM card block 301 and the support block 305 can be flexibly adjusted to accommodate various models, from short bending machines to slender straight machines.

[0070] In some of these embodiments, such as Figure 1 , Figures 3 to 6 As shown, in order to acquire the rotational speed signal in real time, a non-contact rotational speed sensor 500, such as a photoelectric sensor or a laser tachometer, is mounted on the right-side support top plate 214 via an L-shaped bracket 501. The L-shaped bracket 501 allows adjustment of the position and angle of the sensor probe to precisely align it with the reflective mark on the left end torsion bar of the torque sensor 400 or the rotating thread itself.

[0071] When the dental handpiece drives the torsion bar to rotate, the speed sensor 500 can capture its speed RPM signal in real time and transmit it to the PLC controller.

[0072] In addition, such as Figure 1 and Figure 2 As shown, the tester also includes a PLC touch screen 600 and a printer 700. The PLC touch screen 600 and printer 700 serve as human-machine interaction and output terminals, and are embedded in the pre-set holes in the housing, resulting in a neat appearance.

[0073] The PLC touchscreen 600 is the core of the system at the electrical level. It receives analog signals from the torque sensor 400 and digital pulse signals from the speed sensor 500, and sends start / stop and direction control signals to the driver of the drive motor 220. Simultaneously, it displays test curves and results on the screen and controls the printer 700 to print reports or export data via USB port. All user operations, such as parameter setting, starting tests, viewing data, and printing, are completed through the touchscreen interface.

[0074] Combination Figures 1 to 6 As shown, the working principle of this dental handpiece rotation power tester is as follows: During testing, the dental handpiece 001 is manually installed on the handpiece fixing clamp 300, and the test parameters are set via the PLC touch screen 600. After starting the test, the drive motor 220 drives the lead screw slide 233 to slowly move to the right, causing the tip of the dental handpiece 001 to gradually contact the torsion bar of the torque sensor 400 and apply resistance. As the resistance gradually increases, the rotation speed of the dental handpiece gradually decreases until it stops. The torque sensor 400 collects torque data in real time, and the speed sensor 500 collects speed data synchronously. The PLC system calculates and displays the maximum power value based on the collected data. After the test is completed, the data can be printed as a report via the printer 700 or exported to a USB flash drive for storage.

[0075] The dental handpiece rotation power tester provided by this utility model has a reasonable structure, is easy to operate, and has high testing accuracy. It is suitable for testing the rotation power of various dental handpieces, meets the requirements of relevant industry standards, and has good practicality and promotion value.

[0076] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0077] Secondly, the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0078] 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 within the protection scope of the present utility model.

Claims

1. A dental handpiece rotation power tester, characterized in that, The device includes a housing (100), a drive mechanism (200) disposed within the housing (100), a mobile phone fixing clamp (300), and a torque sensor (400), wherein: The drive mechanism (200) includes a support frame (210), a drive motor (220) disposed at the bottom of the support frame (210), and a lead screw sliding platform (230) disposed laterally at the top left end of the support frame (210), and the lead screw sliding platform (230) is connected to the drive motor (220) in a transmission connection. The mobile phone fixing clamp (300) is fixedly mounted on the lead screw slide (233) of the lead screw sliding platform (230), and can move left and right with the lead screw slide (233); the torque sensor (400) is fixedly mounted on the right end of the top of the support frame (210), and the torsion bar at its left end is arranged in a left-right opposite manner to the dental handpiece (001) mounted on the lead screw slide (233).

2. The dental handpiece rotation power tester according to claim 1, characterized in that, The equipment housing (100) includes an irregularly shaped housing (110), a protective cover (120), and height-adjustable feet (130), wherein: The protective cover (120) is provided on the operating table (111) at the front top of the irregular housing (110), and height-adjustable support feet (130) are provided at the four corners of the bottom. The protective cover (120) can slide left and right to cover the torque sensor (400), the handpiece fixing clamp (300) or the dental handpiece (001). The left end of the operating table (111) is provided with a horizontal mounting square hole (114) for mounting the mobile phone fixing clamp (300) and the torque sensor (400), and the right end is provided with a guide groove (115) for sliding the protective cover (120) at the position of the torque sensor (400).

3. The dental handpiece rotation power tester according to claim 2, characterized in that, The rear end of the top of the irregularly shaped shell (110) is provided with an upwardly protruding top plate platform (112), and an inclined operation panel (113) is provided between the top plate platform (112) and the operation table (111), wherein: One end of the top plate (112) is provided with a printer mounting hole for mounting a printer (700), and one end of the operation panel (113) is provided with a touch screen mounting hole for mounting a PLC touch screen (600) corresponding to the printer mounting hole.

4. The dental handpiece rotation power tester according to claim 2, characterized in that, The support frame (210) includes a mounting base plate (211), a left side bracket (212), and a right side bracket, wherein: The mounting base plate (211) is fixedly mounted on the bottom plate of the irregular shell (110), and the left side bracket (212) is vertically arranged at its left end. The right side of the top of the left side bracket (212) is provided with the horizontally arranged lead screw sliding platform (230). The drive motor (220) is disposed in the middle of the mounting base plate (211), the right side bracket is disposed vertically at the right end, and the torque sensor (400) is disposed on the left side of the right side bracket.

5. The dental handpiece rotation power tester according to claim 4, characterized in that, The right-side support includes a right-side support rod (213), a right-side support top plate (214), and a right-side support vertical plate (215), wherein: The right-side support rod (213) consists of four rods, which are arranged at the four corners and installed vertically at the right end of the mounting base plate (211), and the right-side support top plate (214) is fixedly installed on its top. The left end of the right support top plate (214) is fixedly connected to the slide rail mounting plate (231) of the lead screw sliding platform (230), and the right end is vertically installed with the right support upright plate (215). The torque sensor (400) is fixedly installed on the left side wall at the upper end of the right support plate (215).

6. The dental handpiece rotation power tester according to claim 4, characterized in that, The lead screw sliding platform (230) includes a slide rail mounting plate (231), a linear guide rail (232), a lead screw slide (233), and a transmission lead screw (234), wherein: The left end of the slide rail mounting plate (231) is fixedly connected to the left side bracket (212), and the linear guide rail (232) is horizontally mounted on it; The lead screw slide (233) is slidably mounted on the linear guide (232), and the transmission lead screw (234) is threadedly installed in the threaded hole therein; The left end of the transmission screw (234) is rotatably mounted on the top of the left side bracket (212) via a bearing, and a second transmission gear (235) is mounted on it. The second transmission gear (235) is connected to the first transmission gear (221) on the output shaft of the drive motor (220) via a chain.

7. The dental handpiece rotation power tester according to claim 1, characterized in that, The mobile phone fixing clamp (300) includes a mobile phone clip (301) and a locking screw (302), wherein: The upper mounting hole of the handpiece block (301) is provided with the locking screw (302) for clamping the head end of the dental handpiece (001), and the lower end is mounted on the lead screw slide (233).

8. The dental handpiece rotation power tester according to claim 7, characterized in that, The mobile phone fixing clamp (300) further includes a clamp base plate (303), a transition pad (304), and a mobile phone auxiliary support block (305), wherein: The fixture base plate (303) is fixedly installed on the top of the lead screw slide (233), and several positioning holes are provided at intervals on its left and right ends respectively; The transition pad (304) is installed at the positioning hole position on the left end of the fixture base plate (303), and the mobile phone card block (301) is installed at the positioning hole position on the right end of the fixture base plate (303). The handpiece auxiliary support block (305) is detachably installed on the top of the transition pad block (304) for auxiliary fixation of the tail end of the dental handpiece (001).

9. The dental handpiece rotation power tester according to claim 1, characterized in that, It also includes a speed sensor (500) disposed on the rear side of the top of the support frame (210), wherein: The probe of the speed sensor (500) is positioned near the left end torsion bar of the torque sensor (400), and it is mounted on the right side support plate (214) of the support frame (210) via an L-shaped bracket (501).

10. The dental handpiece rotation power tester according to claim 1, characterized in that, It also includes a PLC touch screen (600) and a printer (700) respectively installed at the touch screen mounting holes and printer mounting holes on the device housing (100), wherein: The PLC touch screen (600) is electrically connected to the drive motor (220), torque sensor (400), speed sensor (500) and printer (700) respectively.

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