Rotary force measurement and angle detection mechanism

Abstract

The utility model relates to the field of detection equipment, and discloses a rotary force measurement and angle detection mechanism which comprises a fixedly arranged workbench. The workbench is provided with a clamping piece, a translation assembly for driving the clamping piece to horizontally move in a reciprocating mode till the clamping piece clamps or breaks away from the inner handle, and an overturning assembly for achieving overturning of the clamping piece around the rotating center of the inner handle after the clamping piece clamps the inner handle. The translation assembly comprises a mounting base, a horizontal guide assembly arranged between the mounting base and the workbench and a driving assembly for driving the mounting base to move in a guiding manner, and the turnover assembly comprises a driving motor mounted on the mounting base and a turnover frame controlled by the driving motor and fixedly connected with the clamping piece; the turnover frame and the clamping piece are fixedly connected through a force sensor, the driving motor and the force sensor are synchronously connected with a controller, and the detection mechanism cylinder can rapidly judge whether the inner handle assembly is qualified or not and is ingenious in structure.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment, and in particular to a rotation force and angle testing mechanism. Background Technology

[0002] For the specific structure of the car interior door handle assembly, please refer to [reference needed]. Figure 1 As shown, it includes a housing 1, an inner handle 2 rotatably mounted on the housing 1, and a locking hook 3 that is linked to the inner handle 2 and rotates synchronously with the rotation of the inner handle 2. A micro switch 4 is provided inside the housing 1. When the inner handle 2 is rotated to a specified angle, the locking hook 3 will trigger the micro switch 4, which means that the locking hook 3 has been successfully unlocked.

[0003] After actual production, the car interior handle assembly needs to be tested. The test includes determining whether the product can be successfully unlocked at a preset flip angle (triggering the micro switch) and whether the force measured when the product is unlocked is within the preset unlocking force range. Only when both are within the preset range can the product be judged as qualified. Therefore, it is very necessary to design a testing device to test whether the interior handle is qualified. Utility Model Content

[0004] This invention provides a rotation force and angle detection mechanism suitable for detecting interior door handles in automobiles.

[0005] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0006] A rotation force and angle detection mechanism includes a fixed worktable, on which a clamping member, a translation component that drives the clamping member to move horizontally back and forth to clamp or disengage from an inner handle, and a flipping component that flips the clamping member around the rotation center of the inner handle after the clamping member clamps the inner handle. The translation component includes a mounting base, a horizontal guide component disposed between the mounting base and the worktable, and a drive component that drives the mounting base to move in a guiding manner. The flipping component includes a drive motor mounted on the mounting base and a flipping frame controlled by the drive motor and fixedly connected to the clamping member. The flipping frame and the clamping member are fixedly connected through a force sensor. The drive motor and the force sensor are synchronously connected to a controller.

[0007] Using the above scheme, the rotation angle of the drive motor is preset in the logic programming of the controller, and the preset value of the flipping force is input. The drive motor stops after reaching the preset rotation angle. At this time, it is observed whether the micro switch is triggered. If it is not triggered, the product is unqualified. If it is triggered, it is observed whether the value measured by the force sensor is within the preset value range of the flipping force. If it is lower or higher than the preset value, the product is unqualified. If it is still within the preset range, the product is qualified. In the above structure, the translation component drives the clamping component to clamp the inner handle, and the drive motor drives the flipping frame to rotate, thereby driving the clamping component to clamp the inner handle and flip it. The force sensor set between the inner handle and the flipping frame measures the peak value of the force when the handle is flipped. This value is the required measurement value. The drive motor stops after rotating to the preset angle. This detection mechanism can quickly determine whether the inner handle assembly is qualified. The structure is ingenious.

[0008] Preferably, a mounting plate is fixed on the flipping frame, and the force sensor is fixed between the mounting plate and the clamping member. A fitting structure is provided between the mounting plate and the clamping member to prevent the force sensor from being subjected to radial torque.

[0009] Preferably, the mating structure includes at least two sets of vertical guide components disposed between the mounting plate and the clamping member, with the force sensor evenly spaced circumferentially.

[0010] By adopting the above scheme and setting up a vertical guide component, the force sensor can be prevented from being subjected to radial torque, so that the force sensor is only subjected to axial force, thereby improving the accuracy of the measured value.

[0011] Preferably, the vertical guide assembly includes a guide rod vertically fixed to the upper end face of the clamping member and a guide member fixed to the mounting plate and allowing the guide rod to be vertically inserted.

[0012] Preferably, the guide element is a linear bearing or a guide sleeve.

[0013] By adopting the above solution, all the above components can prevent the force sensor from being subjected to radial torque.

[0014] Preferably, the mounting base has support arms extending horizontally on both sides along its moving direction, the tilting frame is U-shaped and its two ends are rotatably connected to the support arms on both sides through a rotating shaft, the mounting plate is fixed in the middle of the recess of the tilting frame, and a first clearance groove is provided on the worktable for the tilting frame to tilt and pass through.

[0015] By adopting the above scheme, the shape of the flipping frame and the setting of the support arm can make the flipping of the clamping parts more stable and the force more even.

[0016] Preferably, an assembly frame is fixed on one side of the mounting base, and a toothed engagement member is coaxially rotated on a rotating shaft. A drive motor is mounted on the outer wall of the assembly frame, and a gear that engages with the toothed engagement member and is controlled by the drive motor is rotatably arranged inside the assembly frame.

[0017] By adopting the above solution, the toothed meshing parts and gears can be set to offset the rotation axis of the tilting frame, thereby reducing the installation area of ​​the worktable and ultimately reducing the installation volume of the equipment.

[0018] Preferably, the clamping component includes a rod body fixedly connected to the force sensor and a clamp head located at one end of the rod body, the end of the clamp head having a recessed groove for partial insertion of the inner handle.

[0019] Preferably, the horizontal guide assembly includes a guide rail fixed parallel to the bottom surface of the worktable and a slider fixed at both ends of the upper surface of the mounting base and embedded in the guide rail for guiding and sliding.

[0020] Preferably, the drive assembly includes a cylinder disposed on the upper surface of the worktable, and a connecting plate is fixedly fixed to the end of the piston rod of the cylinder, which passes vertically through the worktable and is fixedly connected to the upper surface of the mounting base. A second clearance groove is provided on the worktable for the connecting plate to move.

[0021] This utility model, by adopting the above technical solution, has significant technical effects: it includes a clamping component, a translation component for driving the clamping component to move, and a flipping component for driving the clamping component to flip. In the flipping component, a drive motor drives the clamping component to flip, and a force sensor measures the maximum force when the clamping component flips. The controller's logic programming presets the rotation angle of the drive motor and the preset value of the flipping force. The drive motor stops after reaching the preset rotation angle. At this time, it is observed whether the microswitch of the product is triggered. If it is not triggered, the product is unqualified. If it is triggered, it is observed whether the value measured by the force sensor is within the preset value range of the flipping force. If it is lower or higher than the preset value, the product is unqualified. If it is still within the preset range, the product is qualified. This detection mechanism can quickly determine whether the inner handle assembly is qualified, and its structure is ingenious. Attached Figure Description

[0022] Figure 1 This is an isometric view of the automotive interior door handle assembly to be tested in this embodiment;

[0023] Figure 2 This is an isometric view of a rotation force and angle detection mechanism according to this embodiment;

[0024] Figure 3 This is a front view of a rotation force measuring and angle detection mechanism according to this embodiment;

[0025] Figure 4 This is a left view of a rotation force and angle detection structure according to this embodiment.

[0026] The parts referred to by the numbers in the above attached figures are as follows: 1. Housing; 2. Inner handle; 3. Locking hook; 4. Micro switch; 5. Worktable; 51. First clearance groove; 52. Second clearance groove; 6. Mounting base; 7. Support arm; 8. Guide rail; 9. Slider; 10. Tilting frame; 11. Assembly frame; 12. Clamping component; 121. Rod; 122. Chuck; 1221. Clamping groove; 13. Force sensor; 14. Mounting plate; 15. Linear bearing; 16. Guide rod; 18. Toothed engagement component; 19. Rotating shaft; 20. Gear; 21. Drive motor; 22. Cylinder; 23. Connecting plate. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0028] A rotational force and angle detection mechanism, referring to Figures 1-4 As shown, the workbench 5 is fixedly installed. A clamping member 12 is provided below the workbench 5. The clamping member 12 includes a rod 121 and a chuck 122 located at one end of the rod 121. The end of the chuck 122 is recessed with a clamping groove 1221 for partial insertion of the inner handle 2. The lower surface of the workbench 5 is provided with a translation component that drives the clamping member 12 to move horizontally back and forth to clamp or disengage the inner handle 2, and a flipping component that enables the clamping member 12 to flip around the rotation center of the inner handle 2 after clamping the inner handle 2.

[0029] Combination Figures 2-3 As shown, the translation component includes a mounting base 6, a horizontal guide component disposed between the mounting base 6 and the lower surface of the worktable 5, and a drive component for guiding the mounting base 6 to move. The horizontal guide component includes a guide rail 8 fixed parallel to the lower bottom surface of the worktable 5 and a slider 9 fixed at both ends of the upper surface of the mounting base 6 and embedded in the guide rail 8 for guiding and sliding. The drive component includes a cylinder 22 disposed on the upper surface of the worktable 5. A connecting plate 23 is fixed at the end of the piston rod of the cylinder 22, which passes vertically through the worktable 5 and is fixedly connected to the upper surface of the mounting base 6. A second clearance groove 52 is provided on the worktable 5 for the connecting plate 23 to move.

[0030] The flipping assembly includes a U-shaped flipping frame 10 with its opening facing the detection end. Support arms 7 extend parallel to both sides of the mounting base 6 to support and assemble the flipping frame 10. The two ends of the flipping frame 10 are rotatably connected to the support arms 7 via a pivot 19. A mounting plate 14 parallel to the guide rail 8 is fixed in the middle of the recess of the flipping frame 10. The clamping member 12 is located below the mounting plate 14 and the two are fixedly connected by a force sensor 13. A cooperating structure is provided between the mounting plate 14 and the rod 121 to avoid the force sensor 13 being subjected to radial force. The cooperating structure includes two sets of vertical guide assemblies that are evenly spaced around the force sensor 13 and are located between the mounting plate 14 and the clamping member 12. The vertical guide assembly includes a guide rod 16 vertically fixed to the upper end face of the clamping member 12 and a linear bearing 15 fixed to the mounting plate 14 and allowing the guide rod 16 to be vertically inserted.

[0031] The tilting of the tilting frame 10 is controlled by a drive motor 21. An assembly frame 11 is fixed on one side of the mounting base 6, and a toothed engagement member 18 rotates coaxially on a rotating shaft 19, engaging... Figure 4 As shown, in this embodiment, the toothed engagement member 18 is a fan-shaped toothed piece, the drive motor 21 is mounted on the outer wall of the assembly frame 11, and a gear 20 is rotatably arranged inside the assembly frame 11, which engages with the toothed engagement member 18 and is controlled by the drive motor 21. The central axis of the gear 20 is fixedly connected to the motor shaft of the drive motor 21.

[0032] The workbench 5 is provided with a first clearance groove 51 for the flipping frame 10 to flip and pass through. When the chuck 122 clamps the inner handle 2, the rotation center of the rotating shaft 19 and the inner handle 2 are coaxial.

[0033] The cylinder 22, drive motor 21 and force sensor mentioned above are all connected to the controller (PLC), and the opening and closing of the above components are controlled by the existing logic programming of the controller.

[0034] The testing process conducted by the aforementioned testing agency is as follows:

[0035] 1. When cylinder 22 retracts (in this embodiment, when cylinder 22 retracts, the tilting frame 10 extends; when cylinder 22 extends, the tilting frame 10 retracts), the inner handle 2 to be tested is partially inserted into the specified depth of the clamping groove 1221.

[0036] 2. Drive motor 21 starts and rotates to the preset angle;

[0037] 3. The operator observes whether the micro switch 4 is triggered. If it is not triggered, the product is deemed unqualified. If it is triggered, the operator compares the value measured by the force sensor with the preset value range. If the value is lower or higher than the preset value range, the product is deemed unqualified. If the value is within the preset value range, the product is deemed qualified.

[0038] 4. Drive motor 21 reverses and resets;

[0039] 5. Cylinder 22 extends and returns to its original position;

[0040] 6. Repeat steps 1 to 5 to perform repeated tests.

[0041] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A rotating force and angle detection mechanism, comprising a fixedly mounted worktable (5), characterized in that: The workbench (5) is provided with a clamping component (12), a translation component that drives the clamping component (12) to move horizontally back and forth to clamp or disengage from the inner handle (2), and a flipping component that enables the clamping component (12) to flip around the rotation center of the inner handle (2) after clamping the inner handle (2). The translation component includes a mounting base (6), a horizontal guide component disposed between the mounting base (6) and the workbench (5), and a drive component that drives the mounting base (6) to move in a guide manner. The flipping component includes a drive motor (21) mounted on the mounting base (6) and a flipping frame (10) controlled by the drive motor (21) and fixedly connected to the clamping component (12). The flipping frame (10) and the clamping component (12) are fixedly connected through a force sensor (13). The drive motor (21) and the force sensor (13) are synchronously connected to a controller.

2. The rotational force and angle detection mechanism according to claim 1, characterized in that: A mounting plate (14) is fixed on the flipping frame (10). The force sensor (13) is fixed between the mounting plate (14) and the clamping member (12). A cooperating structure is provided between the mounting plate (14) and the clamping member (12) to prevent the force sensor (13) from being subjected to radial torque.

3. The rotating force and angle detection mechanism according to claim 2, characterized in that: The mating structure includes at least two sets of vertical guide components disposed between the mounting plate (14) and the clamping member (12) and evenly spaced around the force sensor (13).

4. The rotation force measuring and angle detection mechanism according to claim 3, characterized in that: The vertical guide assembly includes a guide rod (16) that is vertically fixed to the upper end face of the clamp (12) and a guide member that is fixed to the mounting plate (14) and allows the guide rod (16) to be vertically inserted.

5. The rotational force and angle detection mechanism according to claim 4, characterized in that: The guide is a linear bearing (15) or a guide sleeve.

6. The rotation force and angle detection mechanism according to claim 1, characterized in that: Support arms (7) extend horizontally on both sides of the mounting base (6) along its moving direction. The flipping frame (10) is U-shaped and its two ends are rotatably connected to the support arms (7) on both sides through a rotating shaft (19). The mounting plate (14) is fixed in the middle of the recess of the flipping frame (10). The workbench (5) is provided with a first clearance groove (51) that allows the flipping frame (10) to flip through.

7. The rotating force and angle detection mechanism according to claim 6, characterized in that: An assembly frame (11) is fixed on one side of the mounting base (6). A toothed engagement piece (18) rotates coaxially on a rotating shaft (19). A drive motor (21) is mounted on the outer wall of the assembly frame (11). A gear (20) is rotatably arranged inside the assembly frame (11) and engages with the toothed engagement piece (18) and is controlled by the drive motor (21).

8. The rotation force and angle detection mechanism according to claim 1, characterized in that: The clamping member (12) includes a rod (121) fixedly connected to the force sensor (13) and a clamp (122) located at one end of the rod (121). The end of the clamp (122) has a recessed groove (1221) for partial insertion of the inner handle (2).

9. The rotation force measuring and angle detection mechanism according to claim 1, characterized in that: The horizontal guide assembly includes a guide rail (8) fixed parallel to the bottom surface of the worktable (5) and a slider (9) fixed at both ends of the upper surface of the mounting base (6) and embedded in the guide rail (8) for guiding and sliding.

10. A rotational force measuring and angle detection mechanism according to claim 1, characterized in that: The drive assembly includes a cylinder (22) disposed on the upper surface of the worktable (5). The piston rod end of the cylinder (22) is fixed with a connecting plate (23) that passes vertically through the worktable (5) and is fixedly connected to the upper surface of the mounting base (6). A second clearance groove (52) is provided on the worktable (5) for the connecting plate (23) to move.

Images