Full-automatic combined torque testboard
By combining a bevel gear system and a servo motor with resistance strain gauges in a fully automated combined torque testing bench, the problem of mismatched engine shaft dimensions was solved, enabling dynamic torque detection and improving the accuracy and flexibility of the test.
Patent Information
- Application Number
- CN202423226441.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing automotive torque test benches have a problem with the mismatch between the size of the test bench surface and the engine rotating shaft, and the testing method is static, which leads to inaccurate test results.
A fully automated combined torque testing bench is adopted, which uses a micro motor to drive a bevel gear system to achieve dynamic limiting and torque detection of the engine shaft. Dynamic torque detection is performed using a servo motor and resistance strain gauges, and the test results are displayed on a screen.
It enables dynamic detection that adapts to various engine rotating shaft dimensions, improving the accuracy and flexibility of detection and ensuring the precision of detection results.
Smart Images
Figure CN223565245U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of automobile parts quality testing, and particularly to a full-automatic combined torque testing platform. BACKGROUND
[0002] An automobile is an extremely complex system, including tens of thousands of parts, and bolt connection is the main way to assemble these parts. The bolt tightening quality is the key to the connection effect of the parts, and is closely related to the safety performance and functional performance of the automobile. Therefore, the automobile parts involving bolt connection must be subjected to regular torque testing during the production process to ensure product quality.
[0003] The existing automobile torque testing platform usually sets multiple holes of different sizes on the platform surface to adapt to the output ends of engines of different sizes. However, the sizes are not only a few, and the holes of different sizes are still prone to inadaptation. In addition, the existing detection method is static detection, and the detection result is not accurate enough. CONTENT OF THE INVENTION
[0004] In order to solve the problem that the hole of the platform surface is prone to inadaptation with the size of the rotating shaft of the engine, the present application provides a full-automatic combined torque testing platform.
[0005] The full-automatic combined torque testing platform provided by the present application adopts the following technical solution: a testing platform body is provided, a cabinet door is hingedly connected to one side of the testing platform body, a placement hole is formed in the middle of the top of the testing platform body, a support is fixed to one side of the testing platform body, a display screen is fixed to the top of the support, a first servo motor is fixed to the inner wall of the testing platform body at the bottom, a rotating shaft is fixed to the power output end of the first servo motor, a connecting head is fixed to the top of the rotating shaft, a sleeve is rotatably connected to the inner wall of the testing platform body at the top near the bottom of the placement hole, a sliding groove is formed in the outer wall of the sleeve, a resistance strain gauge is fixed to the bottom of the sleeve, a telescopic rod is slidably connected in the sliding groove, an extrusion block is fixed to one end of the telescopic rod near the middle of the sleeve, a turntable is rotatably connected to the inner wall of the sleeve at the middle, a guide rail is fixed to the top of the turntable, a sliding rod is fixed to the bottom of the telescopic rod, a micro motor is fixed to the outer wall of the sleeve, a first bevel gear is fixed to the power output end of the micro motor, and a second bevel gear is fixed to the bottom of the turntable.
[0006] Through the above technical solution, the micro motor drives the first bevel gear to rotate, and then drives the second bevel gear to rotate, so as to drive the turntable to rotate in the sleeve, and drive the guide rail at the top to perform circular motion in the sleeve.
[0007] Preferably, the first bevel gear and the second bevel gear are meshed with each other, and the power output end of the micro motor is movably penetrated through the outside of the sleeve.
[0008] By adopting the technical scheme, the first bevel gear is driven to rotate by the micro motor, and then the second bevel gear is driven to rotate, so that the rotating disc is driven to rotate inside the sleeve.
[0009] Preferably, the guide rail is arranged in a horizontal spiral shape, and the sliding rod is in sliding connection with the guide rail.
[0010] By adopting the technical scheme, the guide rail rotates together with the rotating disc, and the horizontal spiral guide rail drives the sliding rod to move horizontally.
[0011] Preferably, four sliding grooves are arranged in a circumferentially equidistant manner, and four telescopic rods are arranged in a one-to-one corresponding manner with the four sliding grooves.
[0012] By adopting the technical scheme, the four telescopic rods move together with the corresponding sliding rods, and the telescopic rods move at the same speed inside the sliding grooves, so that the four telescopic rods drive the four pressing blocks to move towards the middle part at the same time, and the engine rotating shaft inserted from the placement hole is pressed and fixed.
[0013] Preferably, the center axis of the sleeve and the center axis of the placement hole are arranged in a collinear manner, and the distance between the opposite end of the four telescopic rods and the middle part of the sleeve is equal.
[0014] By adopting the technical scheme, when the engine rotating shaft is inserted into the placement hole, it can be located in the middle part of the sleeve, and the distance from the four pressing blocks is also the same.
[0015] Preferably, the display screen and the resistance strain gauge are electrically connected.
[0016] By adopting the technical scheme, the rotating shaft and the connecting head are driven to rotate by the first servo motor, and then the sleeve is driven to rotate, the torque is detected by the resistance strain gauge, and the torque of the engine rotating shaft is judged by displaying the data of the resistance strain gauge on the display screen.
[0017] Preferably, a bearing is fixed to the top of the outer wall of the sleeve, and the outer wall of the bearing is fixed to the top of the inner wall of the test bench body.
[0018] By adopting the technical scheme, the sleeve and the test bench body are connected by the bearing, the friction between the top of the sleeve and the test bench body is reduced, and the resistance is smaller when the first servo motor drives the sleeve to rotate.
[0019] In summary, the present application has the following at least beneficial technical effects:
[0020] 1. The application inserts the engine rotating shaft into the placement hole, the engine rotating shaft is located in the middle of the sleeve, then the control micro motor drives the first bevel gear to rotate, and then drives the second bevel gear to rotate, thereby driving the rotating disc to rotate inside the sleeve, four telescopic rods drive four extrusion blocks to move towards the middle at the same time, extruding and fixing the engine rotating shaft inserted from the placement hole, thereby completing the limiting of the engine rotating shaft, so as to achieve the effect of adapting to various engine rotating shaft sizes.
[0021] 2. The application drives the rotating shaft and the connecting head to rotate through the first servo motor, thereby driving the sleeve to rotate, detects the torque through the resistance strain gauge, and displays the data of the resistance strain gauge through the display screen to judge the torque of the engine rotating shaft, thereby achieving dynamic detection and more accurate detection effect. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is the overall structure schematic diagram of the full-automatic combined torque test bench of the embodiment of the application.
[0023] Figure 2 It is the schematic diagram of the internal structure of the embodiment of the application.
[0024] Figure 3 It is the schematic diagram of the structure of the resistance strain gauge of the embodiment of the application.
[0025] Figure 4 It is the schematic diagram of the structure of the sleeve of the embodiment of the application from the bottom.
[0026] Figure 5 It is the schematic diagram of the structure of the sleeve of the embodiment of the application from the top.
[0027] Reference signs: 1, test bench body; 2, placement hole; 3, support; 4, display screen; 5, cabinet door; 6, first servo motor; 7, rotating shaft; 8, connecting head; 9, sleeve; 10, bearing; 11, resistance strain gauge; 12, micro motor; 13, first bevel gear; 14, rotating disc; 15, second bevel gear; 16, guide rail; 17, sliding groove; 18, telescopic rod; 19, extrusion block; 20, sliding rod. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings Figures 1-5 The application will be further described in detail.
[0029] The embodiment of the application discloses a full-automatic combined torque test platform, which comprises a test platform body 1, a cabinet door 5 hinged on one side of the test platform body 1, a placing hole 2 penetratingly arranged in the middle of the top of the test platform body 1, a support 3 fixed on one side of the test platform body 1, a display screen 4 fixed on the top of the support 3, a first servo motor 6 fixed on the inner wall bottom of the test platform body 1, a rotating shaft 7 fixed on the power output end of the first servo motor 6, a connecting head 8 fixed on the top of the rotating shaft 7, a sleeve 9 rotationally connected to the inner wall top of the test platform body 1 close to the bottom of the placing hole 2, the rotating shaft 7 and the connecting head 8 are driven to rotate by the first servo motor 6, thereby driving the sleeve 9 to rotate, so that the resistance of the first servo motor 6 is smaller when it is driven to rotate, the torque is detected by the resistance strain gauge 11, the data of the resistance strain gauge 11 is displayed on the display screen 4 to judge the torque of the engine rotating shaft, a sliding groove 17 is penetratingly arranged on the outer wall of the sleeve 9, the resistance strain gauge 11 is fixed on the bottom of the sleeve 9, the telescopic rod 18 is slidably connected in the sliding groove 17, the extrusion block 19 is fixed on one end of the telescopic rod 18 close to the middle of the sleeve 9, the rotating disc 14 is rotationally connected to the middle of the inner wall of the sleeve 9, the guide rail 16 is fixed on the top of the rotating disc 14, the sliding rod 20 is fixed on the bottom of the telescopic rod 18, the micro motor 12 is fixed on the outer wall of the sleeve 9, the first bevel gear 13 is fixed on the power output end of the micro motor 12, the second bevel gear 15 is fixed on the bottom of the rotating disc 14, the first bevel gear 13 is driven to rotate by the micro motor 12, thereby driving the second bevel gear 15 to rotate, so as to drive the rotating disc 14 to rotate in the sleeve 9, and the guide rail 16 on the top is driven to perform circular motion in the sleeve 9.
[0030] Reference is made to the accompanying drawings Figure 4 Wherein the first bevel gear 13 and the second bevel gear 15 are meshed with each other, the power output end of the micro motor 12 movably penetrates the outside of the sleeve 9, the first bevel gear 13 is driven to rotate by the micro motor 12, thereby driving the second bevel gear 15 to rotate, so as to drive the rotating disc 14 to rotate in the sleeve 9.
[0031] Reference is made to the accompanying drawings Figure 3 Wherein the guide rail 16 is arranged in a horizontal spiral shape, the sliding rod 20 is slidably connected with the guide rail 16, the guide rail 16 rotates together with the rotating disc 14, and the horizontal spiral guide rail 16 drives the sliding rod 20 to move horizontally.
[0032] Reference is made to the accompanying drawings Figure 3 And 4 Wherein the sliding groove 17 and the telescopic rod 18 are both provided with four, the four sliding grooves 17 are arranged in a circumferential equidistant manner, the four telescopic rods 18 are arranged in a one-to-one corresponding manner with the four sliding grooves 17, the four telescopic rods 18 move together with the corresponding sliding rods 10, the telescopic rods 18 move at the same speed in the sliding grooves 17, and the four telescopic rods 18 drive the four extrusion blocks 19 to move together towards the middle, so as to extrude and fix the engine rotating shaft inserted from the placing hole 2.
[0033] Reference to the drawings, wherein the center axis of sleeve 9 and the center axis of the placement hole 2 are arranged in a collinear manner, the four telescopic rods 18 are equal in distance to the middle part of the sleeve 9 at one end, so that when the engine shaft is inserted into the placement hole 2, it can be located in the middle part of the sleeve 9, and the distance to the four extrusion blocks 19 is also the same.
[0034] Reference to the drawings, Figure 1 And 3 Wherein the display screen 4 and the resistance strain gauge 11 are electrically connected, the bottom of the sleeve 9 is fixed with the connecting head 8, the rotating shaft 7 and the connecting head 8 are driven to rotate by the first servo motor 6, and then the sleeve 9 is driven to rotate, the torque is detected by the resistance strain gauge 11, and the data of the resistance strain gauge 11 is displayed on the display screen 4 to judge the torque of the engine shaft.
[0035] Reference to the drawings, Figure 2 Wherein the outer wall of the sleeve 9 is fixed with the bearing 10 at the top, the outer wall of the bearing 10 is fixed with the inner wall of the test bench body 1 at the top, the sleeve 9 is connected with the test bench body 1 through the bearing 10, the friction between the top of the sleeve 9 and the test bench body 1 is reduced, so that the resistance is smaller when the first servo motor 6 drives it to rotate.
[0036] The implementation principle of the full-automatic combined torque test bench of the embodiment of the present application is as follows: first, the engine shaft is inserted into the placement hole 2, the center axis of the sleeve 9 and the center axis of the placement hole 2 are arranged in a collinear manner, so that the engine shaft is located in the middle part of the sleeve 9, and the distance to the four extrusion blocks 19 is also the same, then the first bevel gear 13 is driven to rotate by the micro motor 12, and then the second bevel gear 15 is driven to rotate, so that the rotating disc 14 is driven to rotate inside the sleeve 9, the horizontal spiral guide rail 16 drives the sliding rod 20 to move horizontally, the four telescopic rods 18 move together with the corresponding sliding rod 10, the telescopic rods 18 move at the same speed inside the sliding groove 17, the four telescopic rods 18 drive the four extrusion blocks 19 to move together towards the middle part, and the engine shaft inserted from the placement hole 2 is extruded and fixed, so that the engine shaft is limited, the rotating shaft 7 and the connecting head 8 are driven to rotate by the first servo motor 6, and then the sleeve 9 is driven to rotate, the sleeve 9 is connected with the test bench body 1 through the bearing 10, the friction between the top of the sleeve 9 and the test bench body 1 is reduced, so that the resistance is smaller when the first servo motor 6 drives it to rotate, the torque is detected by the resistance strain gauge 11, and the data of the resistance strain gauge 11 is displayed on the display screen 4 to judge the torque of the engine shaft.
[0037] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.
Claims
1. A full-automatic combined torque test platform, comprising a test platform body (1), one side of the test platform body (1) is hingedly connected with a cabinet door (5), a placing hole (2) is formed in the middle of the top of the test platform body (1), characterized in that: The test bench body (1) one side is fixed with support (3), the support (3) top is fixed with display screen (4), the test bench body (1) inner wall bottom is fixed with first servo motor (6), the power output end of first servo motor (6) is fixed with rotating shaft (7), the rotating shaft (7) top is fixed with connector (8), the test bench body (1) inner wall top is close to the bottom of the placement hole (2) rotationally connected sleeve (9), the sleeve (9) outer wall is through the opening of the sliding slot (17), the sleeve (9) and connector (8) are detachably connected, the sleeve (9) bottom is fixed with resistance strain gauge (11), the sliding slot (17) inside is slidably connected with telescopic rod (18), the telescopic rod (18) is close to the sleeve (9) middle part one end and is fixed with extrusion block (19), the sleeve (9) inner wall middle part is rotationally connected with rotating disc (14), the rotating disc (14) top is fixed with guide rail (16), the telescopic rod (18) bottom is fixed with slide bar (20), the sleeve (9) outer wall is fixed with micro motor (12), the power output end of micro motor (12) is fixed with first bevel gear (13), the rotating disc (14) bottom is fixed with second bevel gear (15).
2. The fully automatic combined torque test bench according to claim 1, characterized in that: The first bevel gear (13) and second bevel gear (15) are engaged with each other, and the power output end of the micro motor (12) is movably through the outside of the sleeve (9).
3. The fully automatic combined torque test bench according to claim 1, characterized in that: The guide rail (16) is arranged in a horizontal spiral shape, and the slide bar (20) is slidably connected with the guide rail (16).
4. The fully automatic combined torque test bench according to claim 3, characterized in that: The sliding slot (17) and telescopic rod (18) are both provided with four, four sliding slots (17) are arranged in a circumferentially equidistant manner, and four telescopic rods (18) are arranged in a one-to-one corresponding manner with four sliding slots (17) respectively.
5. The fully automatic combined torque test bench according to claim 4, characterized in that: The central axis of the sleeve (9) and the central axis of the placement hole (2) are arranged in a collinear manner, and the spacing values of the four telescopic rods (18) relative to one end and the middle part of the sleeve (9) are equal.
6. The fully automatic combined torque test bench according to claim 1, characterized in that: The display screen (4) and the resistance strain gauge (11) are electrically connected.
7. The fully automatic combined torque test bench according to claim 1, characterized in that: The sleeve (9) outer wall top is fixed with bearing (10), and the bearing (10) outer wall is fixed with the test bench body (1) inner wall top.