Door holder force measuring device

Abstract

The utility model relates to the field of component detection, in particular to a door holder force measuring device which comprises a fixed station, a force measuring sensor and a moving module. The fixing station comprises a fixing plate used for fixing the door buckle, and an avoiding space is formed in the fixing plate. A simulation hand is connected to the force measuring sensor and acts on a handle of the door holder through the avoiding space; the force measuring sensor is installed on the moving module, and movement of the simulated hand is achieved through movement of the moving module. Through the scheme of the invention, the problem that the pulling force of the handle of the door holder is detected manually at present is solved, automatic force measurement of the door holder is realized, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the field of component detection, and particularly relates to a door handle force measuring device. Background Art

[0002] The door handle is a structure for opening and unlocking the car door on the inner side of the car door. The door handle includes structures such as a handle and a handle seat. The handle is rotatably connected to the handle seat, and a return spring is connected between the handle and the handle seat. The return spring is generally a torsion spring, and the return spring is used to reset the handle after it is pried open. The driver and passengers in the car pry the handle, and the handle rotates on the handle seat, thereby realizing the opening of the car door. After releasing the handle, the handle resets under the action of the return spring.

[0003] After the door handle is produced, it is necessary to detect the elastic force of the return spring of the door handle to judge whether the elastic force of the return spring meets the requirements and whether the door handle is qualified. If the elastic force of the return spring is too large, after the door handle is installed on the car door, a large force is required to pry and rotate the handle when opening the door, which will give the driver and passengers a bad experience of difficult opening of the handle. At the same time, after releasing the handle, the handle will quickly reset under the action of a large return elastic force and will generate a certain impact sound, and the impact sound will also affect the mood of the driver and passengers. If the elastic force of the return spring is too small, after the handle is pried open, the reset speed of the handle is slow, and even the handle cannot be normally reset, affecting the normal use of the door handle.

[0004] At present, the detection of the elastic force of the return spring on the handle is mainly manually pulling the handle by a dynamometer by a person to detect the force for opening the handle, so as to indirectly detect the elastic force of the return spring. This manual detection method has low detection efficiency and high labor intensity.

[0005] If a door handle force measuring device is designed to detect the force for rotating the handle in an automatic manner, the detection efficiency can be improved and the labor intensity can be reduced. Content of the Utility Model

[0006] The utility model aims to provide a door handle force measuring device to solve the problem that the current detection method for the force of pulling the handle of the door handle is manual detection, and realize the automatic force measurement of the door handle.

[0007] To achieve the above purpose, the utility model adopts the following technical scheme: A door handle force measuring device includes a fixed station, a force measuring sensor, and a moving module;

[0008] The fixed station includes a fixing plate for fixing the door handle, and an avoidance space is provided on the fixing plate;

[0009] A simulated hand is connected to the force measuring sensor, and the simulated hand can enter the avoidance space;

[0010] The force sensor is installed on the moving module, and the moving module drives the simulation hand to move.

[0011] The principle and advantages of this solution are as follows: The fixed station is used to fix the door handle. When the door handle is installed on the fixed station, the handle of the door handle is exposed through the avoidance space. The setting of the avoidance space enables the fixing plate not to block the handle, allowing the simulation hand to act on the handle. If there is no avoidance space on the fixing plate, in order to prevent the fixing plate from blocking the handle, the handle seat of the door handle needs to face away from the fixing plate to expose the handle. However, at this time, the handle seat is not fastened to the fixing plate but faces away from the fixing plate, making it inconvenient to fix the handle seat. Therefore, in this application, by setting the avoidance space, a fixing method where the handle seat is fastened to the fixing plate can be adopted, without affecting the simulation hand's action on the handle.

[0012] In this application, through the movement of the moving module, the moving module drives the force sensor and the simulation hand to move. The simulation hand acts on the handle of the door handle through the avoidance space, and then the moving module is moved. The force sensor and the simulation hand move, and the simulation hand pulls the handle of the door handle, thus simulating a person's hand to open the handle. At the same time, the force sensor detects the force for opening the handle to check whether the force for opening the handle meets the requirements.

[0013] Through the solution of this application, the automatic detection of the opening force of the handle of the door handle is realized, eliminating the need for manual detection. The operation is simple and convenient, reducing the labor intensity. At the same time, compared with manual detection, the detection efficiency can also be improved.

[0014] Preferably, as an improvement, the moving module includes an X-direction moving module and a Y-direction moving module. In this solution, the X-direction moving module realizes the movement of the simulation hand in the X direction. The Y-direction moving module realizes the movement of the simulation hand in the Y direction. Through the X-direction moving module and the Y-direction moving module, the movement of the simulation hand in different directions within the plane is realized.

[0015] Preferably, as an improvement, both the X-direction moving module and the Y-direction moving module include a guide rail, a slider, a motor, and a lead screw; the slider is slidably connected to the guide rail, the motor and the lead screw are coaxially connected, the lead screw is threadedly connected to the slider, and the lead screw and the guide rail are arranged in the same direction.

[0016] The moving module of the solution of this application adopts a conventional moving module. The motor drives the lead screw to rotate. The lead screw and the slider form a lead screw pair, and the lead screw drives the slider to move on the guide rail, thereby realizing the movement of the moving module.

[0017] Preferably, as an improvement, a fixed cylinder is installed on the fixed plate, and a pressing block is installed on the cylinder rod of the fixed cylinder. Thus, by setting the fixed cylinder, after the door handle is installed on the fixed plate, the fixed cylinder drives the pressing block to press on the door buckle, so that the door handle is more stable on the fixed plate and is not likely to fall off the fixed plate.

[0018] Preferably, as an improvement, a positioning pin for passing through the hole on the door handle is installed on the fixed plate. There is a hole on the handle seat of the door handle. When the door handle is installed on the fixed plate, the positioning pin is inserted into the hole on the door handle, thus realizing the positioning of the door handle on the fixed plate.

[0019] Preferably, as an improvement, a position sensor for detecting whether the door handle is installed on the fixed plate is further included. Thus, through this position sensor, it is possible to detect whether the door handle on the fixed plate is installed. If the position sensor detects that the door handle is not installed on the fixed plate, the moving module will not drive the simulation hand to move to the fixed plate to pull and detect the handle.

[0020] Preferably, as an improvement, a position sensor for detecting the buffer pin on the door handle is further included. A buffer pin will be set on the door handle. The buffer pin is a structure of the door handle and is used for buffering when the handle is reset. In this solution, by setting this position sensor, this position sensor is used to detect the buffer pin of the door handle to avoid missing the installation of the buffer pin on the door handle.

[0021] Preferably, as an improvement, a position sensor for detecting the reset of the handle is further included. Thus, through this position sensor, the reset time of the handle is detected. The reset time of the handle is related to the elastic force of the reset spring (the greater the elastic force of the reset spring, the longer the reset time of the handle; the smaller the elastic force of the reset spring, the shorter the reset time of the handle), so as to judge whether the elastic force of the reset spring on the door handle meets the requirements.

[0022] Preferably, as an improvement, the position sensor is a light position sensor. The light position sensor is a sensor used to detect the position or presence state of an object and uses the change of light for detection.

[0023] Preferably, as an improvement, a detection table and a tooling plate are further included. The tooling plate is detachably installed on the detection table. There are multiple fixed stations on the tooling plate, and an electrical box is provided on the tooling plate; electrical connectors are provided on both the outside of the electrical box and the detection table. When the tooling plate is installed on the detection table, the two connectors are in electrical contact.

[0024] In the solution of this application, the fixed workstations are arranged on the tooling plate, and the tooling plate is detachably connected to the inspection table, so that the tooling plate on the inspection table can be removed. When this equipment does not need to perform force measurement on the door handle, the tooling plate can be removed, and other tooling plates (with fixed workstations for fixing other components installed on them) can be installed on the inspection table, so as to detect other types of components. In this way, the equipment of this solution is not only limited to performing force measurement on the door handle. By replacing the tooling plates for fixing different components, different components can also be detected, improving the applicability of this equipment for detecting different components, and this equipment has a wide range of uses.

[0025] In this solution, the circuits of multiple fixed workstations are integrated in the electrical box on the tooling plate. After the tooling plate is installed on the inspection table, the circuits in the electrical box on the tooling plate are connected to the circuits of this equipment by contacting the electrical connectors on the electrical box with the electrical connectors on the inspection table. In this way, the circuits of multiple fixed workstations on the tooling plate will be powered on or communicate, without having to electrically connect the circuits of multiple fixed workstations to this equipment one by one, which is beneficial to the quick replacement of the tooling plate and improves the efficiency of tooling plate replacement, and the operation is simple and convenient. Description of the Drawings

[0026] Figure 1 It is a three-dimensional view of a door handle force measurement device.

[0027] Figure 2 It is a three-dimensional view of the inspection table, moving module, tooling plate and fixed workstations in the inspection space.

[0028] Figure 3 For Figure 2 The three-dimensional view of the inspection table, moving module, tooling plate and fixed workstations on the right side in

[0029] Figure 4 It is a three-dimensional view of the moving module.

[0030] Figure 5 It is a three-dimensional view of the fixed workstation, mainly showing the structures such as the door handle, fixed cylinder, position sensor, etc. on the fixed workstation.

[0031] Figure 6 It is a three-dimensional view of the fixed workstation, mainly showing the avoidance space on the fixed workstation and the handle of the door handle, etc.

[0032] Figure 7 It is a schematic structural view of the first electrical connector on the inspection table.

[0033] Figure 8 It is a schematic structural view of the second electrical connector on the tooling plate. Detailed Implementation Modes

[0034] The following is a further detailed description through specific embodiments:

[0035] The reference numerals in the accompanying drawings of the specification include: detection cabinet 1, detection space 2, detection table 3, X-direction movement module 4, Y-direction movement module 5, force measurement sensor 6, simulation hand 7, fixing plate 8, fixing cylinder 9, positioning pin 10, handle seat 11, handle 12, first position sensor 13, light beam 14, third position sensor 15, light ray 16, electrical box 17, tooling plate 18, first electrical connector 19, second electrical connector 20, avoidance space 21, swinging member 22.

[0036] Embodiment 1

[0037] Basically as shown in the attached Figures 1-6 figure: A door handle force measurement device includes a detection cabinet 1, a fixing station, a force measurement sensor 6, and a movement module. As shown in combination with Figure 1 the figure, a detection space 2 is provided on the detection cabinet 1, and the bottom of the detection space 2 is the detection table 3. As shown in combination with Figure 2 the figure, two tooling plates 18 are installed on the detection table 3 in this embodiment. The fixing method of the tooling plate 18 and the detection table 3 can be fixed by screws or bolts, or in other embodiments, the tooling plate 18 is pressed on the detection table 3 by setting a pressing structure (such as a pressing cylinder).

[0038] A plurality of fixing stations are installed on the tooling plate 18. In this embodiment, the number of fixing stations installed on each tooling plate 18 is two. Additionally, in other embodiments, the number, position of the tooling plates 18, and the number, position of the fixing stations installed on each tooling plate 18 can all be set otherwise according to actual situations.

[0039] As shown in combination with Figure 2 , Figure 3 , Figure 5 and Figure 6As shown in the figure, the fixed work station includes a fixing plate 8 for fixing the door handle. The fixing plate 8 is vertically arranged. The bottom of the fixing plate 8 is fixed with a base by welding or by fixing with screws or bolts. The base is fixed on the tooling plate 18 by screws or bolts. An avoidance space 21 is provided on the fixing plate 8. The avoidance space 21 in this embodiment is an avoidance hole, and the avoidance hole makes the two side surfaces of the fixing plate 8 communicate. A positioning pin 10 is installed and fixed on one side of the fixing plate 8 (for example, fixed by screws or integrally fixed). There is a hole on the handle seat 11 of the door handle. The handle seat 11 of the door handle is buckled and attached to the side surface of the fixing plate 8. By inserting the positioning pin 10 into the hole of the handle seat 11 of the door handle, the door handle is positioned and installed on the side surface of the fixing plate 8. Two fixing cylinders 9 are fixed on the fixing plate 8 by bolts or screws (in other embodiments, the number of fixing cylinders 9 can also be other numbers). Pressure blocks are installed on the cylinder rods of the fixing cylinders 9. By the expansion and contraction of the cylinder rods of the fixing cylinders 9, the pressure blocks are driven to move, and the handle seat 11 of the door handle is pressed by the pressure blocks, so that the door handle is fixed on the fixing plate 8 more stably. Combined with Figure 6 As shown in the figure, after the door handle is installed on the fixing plate 8, the handle 12 of the door handle is opposite to the avoidance space 21, and the handle 12 is exposed through the avoidance space 21.

[0040] Combined with Figure 2 、 Figure 3 and Figure 4 As shown in the figure, the moving module in this embodiment includes an X-direction moving module 4 and a Y-direction moving module 5. The moving module in this embodiment is a conventional structure, and the specific principle structure is: both the X-direction moving module 4 and the Y-direction moving module 5 include guide rails, sliders, motors and lead screws; the sliders are slidably connected to the guide rails, the motors and the lead screws are coaxially connected, the lead screws and the sliders are threadedly connected, and the lead screws and the guide rails are arranged in the same direction. The guide rail of the X-direction moving module 4 in this embodiment is fixed on the detection table 3 by bolts or screws. The guide rail of the Y-direction moving module 5 is perpendicular to the guide rail of the X-direction moving module 4, and the guide rail of the Y-direction moving module 5 is fixed on the slider of the X-direction moving module 4 by screws or bolts.

[0041] The force measuring sensor 6 in this embodiment is installed on the slider of the Y-direction moving module 5 by bolts or screws. A simulation hand 7 is connected to the end of the force measuring sensor 6. The structure of the simulation hand 7 in this embodiment is a hook, and the simulation hand 7 can act on the handle 12 of the door handle through the avoidance space 21 on the fixing plate 8.

[0042] Thus, in this embodiment, the slider of the X-direction moving module 4 slides on the guide rail of the X-direction moving module 4, thereby driving the Y-direction moving module 5 to move in the X direction, realizing the X-direction movement of the simulation hand 7. By the slider of the Y-direction moving module 5 sliding on the guide rail of the Y-direction moving module 5, the Y-direction movement of the simulation hand 7 is realized. Thus, through the cooperation of the X-direction moving module 4 and the Y-direction moving module 5, the simulation hand 7 is enabled to move within the X-Y plane.

[0043] The specific implementation process is as follows: Install the door handle on the fixed plate 8, as shown after fixed installation. Figure 5 Then, it moves through the moving module. The moving module drives the force sensor 6 and the simulation hand 7 to move. The simulation hand 7 moves to the Figure 6 avoidance space 21. The simulation hand 7 moves through the avoidance space 21 between the handle 12 and the handle base 11, and the simulation hand 7 hooks the handle 12, similar to a person's finger hooking the handle 12. Then, make the moving module move. The force sensor 6 and the simulation hand 7 move, and the simulation hand 7 pulls the handle 12 of the door handle, thus simulating a person opening the handle 12. At the same time, the force sensor 6 detects the force for opening the handle 12 to detect whether the force for opening the handle 12 meets the requirements.

[0044] Embodiment 2

[0045] Combined with Figure 5 as shown, this embodiment further includes a first position sensor 13 for detecting whether the door handle is installed on the fixed plate 8. The first position sensor 13 in this embodiment is an optical position sensor, specifically a reflective optical position sensor, which includes a transmitter and a receiver. The transmitter and the receiver are installed at the same position. The reflective optical position sensor determines the position of an object by emitting a light beam 14 and detecting its reflection. If the door handle is not installed on the fixed plate 8, the light beam 14 emitted by the first position sensor 13 will not hit the handle base 11 of the door handle, and the light beam 14 has no obstruction after being emitted and cannot return to be received, thus indicating that the door handle is not installed on the fixed plate 8. If the door handle is installed on the fixed plate 8, the light beam 14 emitted by the first position sensor 13 will hit the handle base 11 of the door handle, and the light beam 14 hits the door handle and is reflected back to be received by the first position sensor 13, thus indicating that the door handle is installed on the fixed plate 8.

[0046] The first position sensor 13 in this embodiment is installed on the base of the fixed plate 8. Of course, in other implementation manners, it can also be installed at other positions of this device.

[0047] Of course, when the first position sensor 13 detects the door handle on the fixing plate 8, a reflective optical position sensor is not necessarily used. In other embodiments, a transmissive optical position sensor (the transmissive optical position sensor also includes a transmitter and a receiver, but different from the reflective optical position sensor, the transmitter and the receiver are not located at the same position. The transmitter emits light, and the receiver receives the light. When the object is absent, the receiver normally receives the light emitted by the transmitter. When the door handle is installed on the fixing plate 8, the door handle will block the light propagation, and the receiver cannot receive the light), a laser sensor, an optical fiber sensor, an infrared sensor, or the like can also be used.

[0048] Embodiment 3

[0049] In this embodiment, a second position sensor for detecting the buffer pin on the door handle is further included. The second position sensor in this embodiment is also an optical position sensor. The second position sensor in this embodiment is the same as the first position sensor 13 in Embodiment 2, and both are reflective optical position sensors. As shown in Figure 5 shown, Figure 5 the second position sensor is located on the left side of the first position sensor 13. Whether a buffer pin is installed on the door handle is detected by the light beam 16 emitted by the second position sensor. The buffer pin is a columnar structure and protrudes on the handle base 11 for buffering when the handle 12 is reset. In this embodiment, by setting the second position sensor, the principle is the same as that of the first position sensor 13 in Embodiment 2. When a buffer pin is provided on the door handle, the light beam 14 emitted by the second position sensor will hit the buffer pin, and the light beam 14 is reflected back and received by the second position sensor, indicating that a buffer pin is installed on the door handle. Otherwise, the light beam 14 cannot return and be received by the second position sensor, indicating that no buffer pin is installed on the door.

[0050] In addition, in other embodiments, the type of the second position sensor can also be selected as other types of position sensors, and the second position sensor can also be installed at other positions of this device.

[0051] Embodiment 4

[0052] As shown in Figure 5As shown, this embodiment further includes a third position sensor 15 for detecting the reset of the handle 12. The third position sensor 15 in this embodiment is also an optical position sensor, specifically an optical fiber sensor, which uses the light conducted by the optical fiber to detect the position or changes. The third position sensor 15 in this embodiment passes through from the base of the fixing plate 8. The light beam 16 emitted by the third position sensor 15 can irradiate the swinging member 22 linked with the handle 12 (the swinging member 22 is connected to the handle 12 or is a part of the handle 12, and when the handle 12 rotates, the swinging member 22 swings). When the handle 12 rotates, due to the linkage between the swinging member 22 and the handle 12, the swinging member 22 swings together. In this way, during the process of pulling the handle 12 and the handle 12 rotating back to its original position, the handle 12 will drive the swinging member 22 on the back of the handle base 11 to swing together. By the third position sensor 15 hitting the swinging member on the back of the handle base 11, during the swinging process of the swinging member, the time length of the irradiation of the light beam 16 of the third position sensor 15 by the swinging member is used to detect the time for the handle 12 to reset (for example, when one third position sensor 15 is set, after the handle 12 is pulled open, the swinging member blocks the light beam 16. When the handle 12 is completely reset, the position of the swinging member changes, and the swinging member no longer blocks the light beam 16. By detecting the blocking time of the swinging member, the reset time of the handle 12 is judged. Another example is Figure 5 when two third position sensors 15 are set, the reset time of the handle 12 is judged by detecting the time for the swinging member 22 to pass between the two third position sensors 15). And the reset time of the handle 12 is related to the elastic force of the reset spring (the greater the elastic force of the reset spring, the greater the reset time of the handle 12, and the smaller the elastic force of the reset spring, the smaller the reset time of the handle 12). Therefore, by detecting the reset time of the handle 12, it is possible to judge whether the elastic force of the reset spring on the door latch hand meets the requirements.

[0053] Embodiment 5

[0054] This embodiment is further optimized and improved on the basis of Embodiments 1 - 4. In this embodiment, as shown in combination with Figure 2 、 Figure 7 and Figure 8 An electrical box 17 is installed on the tooling plate 18 by means of screws or bolts. The electrical box 17 integrates circuits, and the circuits are electrically connected to the fixing cylinders 9 at multiple fixing stations on the tooling plate 18, that is, the circuits of the fixing cylinders 9 at multiple fixing stations are integrally connected to the electrical box 17; electrical connectors are provided both on the outside of the electrical box 17 and on the detection table 3. As shown in combination with Figure 7 the detection table 3 is provided with a first electrical connector 19. The first electrical connector 19 is a protruding annular structure, and the first electrical connector 19 is connected to the circuit of this device. As shown in combination with Figure 8As shown in the figure, a second electrical connector 20 is provided on the tooling plate 18. The shape of the second electrical connector 20 is adapted to that of the first electrical connector 19. The second electrical connector 20 is an annular slot. By installing the tooling plate 18 on the inspection table 3, the first electrical connector 19 and the second electrical connector 20 are plugged into each other, so that the circuit in the electrical box 17 is powered on or communicates, realizing the simultaneous power-on or communication of the multiple fixed cylinders 9 at the multiple fixed stations on the tooling plate 18, without the need to connect the circuits of the multiple fixed cylinders 9 one by one.

[0055] The above are only embodiments of the present invention, and common general technical solutions and / or characteristics in the solutions are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can still be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A door buckle hand force measuring device, characterized in that: Includes fixed stations, force sensors and mobile modules; The fixed station includes a fixing plate for fixing the door catch, and the fixing plate is provided with an avoidance space; The force sensor is connected to a simulated hand, and the simulated hand can enter the avoidance space; The force sensor is installed on a moving module, and the moving module drives the simulated hand to move.

2. A door buckle hand force measuring device according to claim 1, characterized in that: The moving module includes an X-direction moving module and a Y-direction moving module.

3. A door buckle hand force measuring device according to claim 2, characterized in that: The X-axis moving module and the Y-axis moving module both include guide rails, sliders, motors and lead screws; the sliders are slidably connected to the guide rails, the motors and lead screws are coaxially connected, the lead screws and sliders are threadedly connected, and the lead screws and guide rails are arranged in the same direction.

4. A door buckle hand force measuring device according to claim 1, characterized in that: A fixed cylinder is installed on the fixed plate, and a pressure block is installed on the cylinder rod of the fixed cylinder.

5. The door buckle hand force measuring device according to claim 1, characterized in that: The fixing plate is provided with a positioning pin for passing through the hole on the door buckle.

6. The door buckle hand force measuring device according to claim 1, characterized in that: Also included is a position sensor for detecting whether the door latch is mounted on the fixed plate.

7. The door buckle hand force measuring device according to claim 1, characterized in that: Also included is a position sensor for detecting the buffer pin on the door catch hand.

8. The door buckle hand force measuring device according to claim 1, characterized in that: A position sensor is also included for detecting the resetting of the handle.

9. A door buckle hand force measuring device according to any one of claims 6-8, characterized in that: The position sensor is an optical position sensor.

10. The door buckle hand force measuring device according to claim 1, characterized in that: It also includes a testing table and a tooling plate, wherein the tooling plate is detachably mounted on the testing table, a plurality of fixed workstations are arranged on the tooling plate, and an electrical box is arranged on the tooling plate; electrical connectors are arranged on the outside of the electrical box and on the testing table, and the tooling plate is mounted on the testing table, and the two connectors are in electrical contact.

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