Device and method for detecting tensile force of window glass lifter

Abstract

The invention relates to a window glass lifter tensioning force detection device which comprises a bottom plate and a transmission mechanism connected with the bottom plate, and the transmission mechanism is connected with a pressure detection mechanism. The motor drives the transmission rod and the first sliding block, the first sliding block drives the first connecting plate, the first connecting plate drives the steel wire rope ejector rod to detect the pressure of the window glass lifter, the pressure is transmitted to the pressure sensor, the sensor transmits the pressure to the controller to be displayed, and when the pressure reaches a specified value, the motor outputs a pulse signal of displacement of a test point to the controller. The controller converts the pulse signal into a numerical value signal and displays the numerical value signal, the displayed numerical value is the displacement amount of the tension force, the device can reduce the influence of air pressure, and the measured result is more accurate. The invention further provides a testing method, testing can be carried out through the device for detecting the tensile force of the window glass lifter, and an operator can conveniently test the tensile force of the window glass lifter.

Description

Technical Field

[0001] The invention belongs to the field of tension force detection equipment, and in particular, the invention relates to a glass lifter tension force detection device and a testing method. Background Art

[0002] The car door glass lifter is assembled from a series of parts. During the use of the car door glass lifter, you may encounter problems such as increased resistance and uneven running speed. These problems may be caused by large glass lifting resistance, lifter damage, guide rail installation position deviation, etc. By testing the pressure of the glass lifter, you can prevent people from being pinched and prevent the glass or lifter itself from being damaged due to excessive mechanical pressure.

[0003] The Chinese patent (publication number: 212645951U) discloses a door wire rope tension detection mechanism. The servo electric cylinder drives the middle of the pull rope to rise through the tension detection claw, the stop pin blocks the pull ropes on both sides, and the pressure sensor and displacement sensor detect the pressure value and displacement value.

[0004] However, the device is greatly affected by air pressure, and the measured value fluctuates greatly and is inaccurate. The thrust display value is also converted from the air pressure value and is also inaccurate. Summary of the invention

[0005] The present invention is made to solve the above problems, and aims to provide a tension detection device that can reduce the influence of air pressure and make the measurement more accurate. In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0006] The present invention provides a glass lifter tension force detection device, which has the following characteristics: it comprises a bottom plate and a transmission mechanism connected to the bottom plate, wherein the transmission mechanism is connected to a pressure detection mechanism.

[0007] The transmission mechanism includes a motor, which is arranged at one end of the base plate. The motor is connected to a transmission rod, and a first slider is installed on the transmission rod. The first slider is arranged on a fixed plate, and the fixed plate is connected to the base plate. The first slider is connected to the pressure detection mechanism.

[0008] The pressure detection mechanism includes a wire rope top rod, the wire rope top rod is connected to a first connecting plate, a pressure sensor is arranged between the wire rope top rod and the connecting plate, the connecting plate is connected to the first sliding block, and the pressure sensor is connected to a controller.

[0009] Slide grooves are provided on both sides of the fixing plate, and second slide blocks cooperating with the slide grooves are provided on both sides of the first slide block.

[0010] The slide groove is arranged as a U-shaped structure, and the test end of the wire rope mandrel is arranged as an arc surface.

[0011] A mechanism mounting seat is connected to one side of the bottom plate away from the transmission mechanism. The mechanism mounting seat is arranged in an L-shaped structure. The mechanism mounting seat is also connected to a right-angle plate, and the right-angle plate is connected to two side surfaces of the mechanism mounting seat.

[0012] The motor is connected to a second connecting plate, the second connecting plate is connected to the fixing plate, and through holes are formed on both sides and the bottom of the second connecting plate.

[0013] One side of the fixing plate is connected to a limiting block, a displacement sensor is arranged on the limiting block, and the displacement sensor is connected to a controller.

[0014] The limit block includes an upper limit block, an origin limit block and a lower limit block, the upper limit block is connected to one end of one side of the fixed plate, an upper limit displacement sensor is arranged on the upper limit block, the lower limit block is connected to the other end of one side of the fixed plate, a lower limit displacement sensor is arranged on the lower limit block, the origin limit block is arranged in the middle position between the upper limit block and the lower limit block, the origin limit block is connected to one side of the fixed plate, and an origin displacement sensor is arranged on the origin limit block.

[0015] The present invention also provides a test method for a glass lifter tension force detection device, which is implemented by the above-mentioned glass lifter tension force detection device and has the following characteristics, including the following steps: step S1, starting the motor to provide power for pressure detection; step S2, transmitting the pressure to the pressure sensor through the wire rope top rod, and displaying the output pressure value; step S3, feeding back the displacement to the controller, and the feedback displacement value is the tension force displacement.

[0016] The technical effect of the present invention is as follows: the device adopts a servo motor and a high-precision pressure sensor to detect the thrust size, and reads the servo index value when the thrust reaches the set value. In this way, the force on the wire rope of the elevator is directly read by the pressure sensor, which is very stable and accurate. Through the precise positioning of the servo motor, the relative displacement of the elevator is also very accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] This specification includes the following drawings, which show the following contents:

[0018] Figure 1 It is a schematic diagram of the overall appearance structure of a glass lifter tension force detection device of the present invention;

[0019] Figure 2 It is a partial schematic diagram of the cooperation between the second slider and the slide groove of a glass lifter tensioning force detection device of the present invention;

[0020] Figure 3 The invention discloses a top view of a glass lifter tensioning force detection device.

[0021] Markings in the figure are: 1. Base plate; 2. Transmission mechanism; 201. Motor; 202. Transmission rod; 203. First slider; 204. Fixed plate; 205. Slide groove; 206. Second slider; 207. Second connecting plate; 3. Pressure detection mechanism; 301. Wire rope top rod; 302. First connecting plate; 303. Pressure sensor; 4. Mechanism mounting seat; 5. Right-angle plate; 6. Limit block; 601. Upper limit block; 602. Origin limit block; 603. Lower limit block; 7. Displacement sensor; 701. Upper limit displacement sensor; 702. Origin displacement sensor; 703. Lower limit displacement sensor. DETAILED DESCRIPTION

[0022] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0023] like Figures 1 to 3 As shown, a tension force detection device for a glass lifter includes a base plate 1 and a transmission mechanism 2 connected to the base plate 1, and the transmission mechanism 2 is connected to a pressure detection mechanism 3. The transmission mechanism 2 drives the pressure detection mechanism 3 to perform pressure detection on the glass lifter, and the detected pressure value is transmitted and displayed to see whether it reaches the set value of 19.8N. When it reaches 19.8N, the relative displacement change value of the force point will be transmitted, and the displacement change value of the force point is the tension force displacement.

[0024] The transmission mechanism 2 includes a motor 201, which is a servo motor. The motor 201 is arranged at one end of the bottom plate 1. The output shaft of the motor 201 is connected to a transmission rod 202, and the transmission rod 202 is threadedly connected to a first slider 203. The bottom end of the fixed plate 204 is evenly provided with threaded holes, and the bottom plate 1 is provided with threaded holes matching therewith. The fixed plate 204 and the bottom plate 1 are connected by bolts. The first slider 203 is connected to the pressure detection mechanism 3. When the motor 201 is started, the forward rotation of the motor 201 will drive the transmission rod 202 to rotate, and the rotation of the transmission rod 202 will drive the first slider 203 to slide forward on the fixed plate 204. At the same time, the first slider 203 pushes the pressure detection mechanism 3 to detect the pressure on the glass lifter and transmit it to the controller. When the pressure setting value of 19.8N is reached, the motor is stopped. The motor 201 will transmit the relative displacement change value of the force point to the controller for display. When the motor 201 is reversed, it will drive the transmission rod 202, and the transmission rod 202 drives the first slider 203 to move backward.

[0025] The pressure detection mechanism 3 includes a wire rope top rod 301, the wire rope top rod 301 is connected to a pressure sensor 303, the pressure sensor 303 is arranged between the first connecting plate 302 and the wire rope top rod 301, the pressure sensor 303 is connected to a controller, and the first connecting plate 302 is arranged in an L-shaped structure. A waist-shaped through hole and a circular through hole are opened on the first connecting plate 302, and a through hole matching the waist-shaped through hole and the circular through hole is opened on the first slider 203 at the corresponding position of the waist-shaped through hole and the circular through hole, and the first slider 203 and the first connecting plate 302 are connected by bolts. The first slider 203 drives the first connecting plate 302, and the first connecting plate 302 drives the wire rope top rod 301 to directly contact the glass lifter. The test end of the wire rope top rod 301 is set to an arc surface. The wire rope top rod 301 is set to an arc surface, which can better apply pressure to the glass lifter and transmit the pressure to the pressure sensor 303. The pressure sensor 303 transmits the pressure value to the controller and displays it to see whether it reaches the set value of 19.8N. When the set value of 19.8N is reached, the rotation of the motor 201 is stopped, and the motor 201 outputs a pulse signal to transmit the relative displacement change value of the force point to the controller, and the controller can convert the pulse signal into a numerical signal for display. The displayed value is the displacement of the tensioning force.

[0026] The fixing plate 204 has two sides with slide grooves 205, and two sides of the first slider 203 of the slide groove 205 are provided with second sliders 206 that match the slide grooves 205. The second slider 206 can slide in the slide grooves 205, so that the movement of the first slider 203 on the fixing plate 204 is smoother.

[0027] The chute 205 is configured as a U-shaped structure. The chute 205 is configured as a U-shaped structure, and the second slider 206 is also a U-shaped structure, so that the resistance encountered by the second slider 206 when sliding in the chute 205 is smaller.

[0028] The side of the bottom plate 1 away from the transmission mechanism 2 is threadedly connected to the mechanism mounting seat 4, and the bottom of the bottom plate 1 is evenly provided with threaded holes. The mechanism mounting seat 4 is provided with threaded holes matching the threaded holes at the corresponding positions of the threaded holes at the bottom of the bottom plate 1, and the two are connected by bolts. The mechanism mounting seat 4 is set as an L-shaped structure, and the L-shaped structure can make the mechanism mounting seat 4 and the base 1 fully fixed, and can also ensure full fixation during installation. The mechanism mounting seat 4 is provided with threaded holes, and the mechanism mounting seat 4 is also connected to a right-angle plate 5, and the right-angle plate 5 is connected to the two sides of the mechanism mounting seat 4. When the tension force of the glass lifter is tested, the threaded holes on the mechanism mounting seat 4 are used for fixed installation, and the right-angle plate 5 can improve the strength of the mechanism mounting seat 4.

[0029] The motor 201 is connected to the second connecting plate 207 by bolts, and the second connecting plate 207 is connected to the fixing plate 204 by bolts, and through holes are opened on both sides and the bottom of the second connecting plate 207. The through holes are used to provide bolt connection positions to connect the second connecting plate 204 to the motor 201 and the fixing plate 204 together.

[0030] One side of the fixing plate 204 is connected to a limit block 6. A displacement sensor 7 is provided on the limit block 6, and the displacement sensor 7 is connected to the controller. It can provide protection for the device and is used for the travel range of the motor 201. When the motor 201 runs to the limit position, the displacement sensor 7 transmits a signal to the controller, cuts off the power supply or sends a signal, thereby avoiding accidents caused by the device running out of range.

[0031] The limit block 6 includes an upper limit block 601, an origin limit block 602 and a lower limit block 603. The upper limit block 601 is connected to one end of the fixed plate 204 away from the motor 201. The upper limit block 601 is provided with an upper limit displacement sensor 701. The lower limit block 603 is connected to the other end of the fixed plate 204. The lower limit block 603 is provided with a lower limit displacement sensor 703. The origin limit block 602 is provided in the middle position between the upper limit block 601 and the lower limit block 603. The origin limit block 602 is connected to one side of the fixed plate 204. The origin limit block 602 is provided with an origin displacement sensor 702. The upper limit block 601 is used to limit the highest upward position to prevent it from exceeding the predetermined range, thereby avoiding collision or damage to the equipment. The origin limit block 602 ensures that each operation starts from a fixed and known position, which is essential for ensuring repeatability and reliability. The lower limit block 603 limits the lowest position of the mechanical component moving downward.

[0032] At the beginning, the controller starts the motor 201 to rotate forward. When the first slider 206 moves to the position of the origin limit block 602, the origin displacement sensor 702 transmits a signal to the controller, the rotation speed of the motor 201 slows down, the wire rope top rod 301 contacts the glass lifter and continuously transmits pressure to the pressure sensor 303, and the pressure sensor 303 transmits the pressure value to the controller for display. When the pressure value reaches 19.8N, the motor 201 stops rotating, and the motor 201 transmits a pulse signal of the relative displacement change value of the force-bearing point, and transmits the relative displacement change value of the force-bearing point to the controller for display. After the reading is stabilized and recorded, the controller controls the motor 201 to reverse. The controller will set a reversal time to move the first slider 203 to the position between the lower limit block 603 and the origin limit block 602, waiting for the next test. When the first slider 203 moves to the position of the upper limit block 601 or the lower limit block 603, the upper limit displacement sensor 701 or the lower limit displacement sensor 703 will transmit a signal to the controller, and the controller controls the motor to stop rotating first, and controls the motor 201 to move the first slider 203 to a safe position.

[0033] The present invention also provides a testing method, which is implemented by the above-mentioned glass lifter tension force detection device, and includes the following steps:

[0034] Step S1, start the motor 201, the motor 201 rotates forward, the forward rotation of the motor 201 drives the transmission rod 202 to rotate, the transmission rod 202 rotates along the thread of the first slider 206, the first slider 206 moves, when the first slider 206 moves to the position of the origin limit block 602, the origin displacement sensor 702 transmits a signal to the controller, the rotation speed of the motor 201 slows down, and the wire rope top rod 301 contacts the glass lifter.

[0035] Step S2, at this time, the glass lifter will give the wire rope top rod 301 an opposite force, and the reaction force will be transmitted to the pressure sensor 303 through the wire rope top rod 301. The pressure sensor 303 transmits the pressure value to the controller for display. When the pressure reaches 19.8N, the output force value reaches the set value, and the motor 201 stops rotating forward.

[0036] In step S3, the motor 201 transmits the relative displacement change value of the force point to the controller for display. The motor 201 outputs a pulse signal to the controller, and the controller can convert the pulse signal into a numerical signal for display. The displayed value is the displacement of the tensioning force.

[0037] Functions and Effects of the Embodiments

[0038] At the beginning, tighten the bolts on the mechanism mounting seat 4 to firmly install the mechanism mounting seat 4, then start the motor 201, the motor 201 rotates forward to drive the transmission rod 202 to rotate, the rotation of the transmission rod 202 will drive the first slider 203 to slide forward on the fixed plate 204, the second slider 206 can slide in the slide groove 205 to make the sliding smoother, the first slider 203 drives the first connecting plate 302, the first connecting plate 302 drives the wire rope top rod 301 to directly contact the glass lifter, and the pressure test of the glass lifter is performed. When a slider 206 moves to the position of the origin limit block 602, the origin displacement sensor 702 transmits a signal to the controller, the rotation speed of the motor 201 slows down, the wire rope top rod 301 contacts the glass lifter and continuously transmits pressure to the pressure sensor 303. When the pressure value reaches 19.8N, the motor 201 stops rotating, and the motor 201 transmits a pulse signal of the relative displacement change value of the force point to the controller. The motor 201 outputs a pulse signal to the controller, and the controller can convert the pulse signal into a numerical signal for display. The displayed value is the displacement of the tensioning force. After the reading is recorded stably, the controller controls the motor 201 to reverse, and the controller sets a reversal time to move the first slider 203 to the position between the lower limit block 603 and the origin limit block 602, waiting for the next test. When the first slider 203 moves to the position of the upper limit block 601 or the lower limit block 603, the upper limit displacement sensor 701 or the lower limit displacement sensor 703 will transmit a signal to the controller, and the controller controls the motor to stop rotating first, and controls the motor 201 to move the first slider 203 to a safe position.

[0039] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A glass lifter tension force detection device, characterized in that: It comprises a base plate (1) and a transmission mechanism (2) connected to the base plate (1), wherein the transmission mechanism (2) is connected to a pressure detection mechanism (3).

2. A glass lifter tension force detection device according to claim 1, characterized in that: The transmission mechanism (2) comprises a motor (201), the motor (201) being arranged at one end of the base plate (1), the motor (201) being connected to a transmission rod (202), a first slider (203) being mounted on the transmission rod (202), the first slider (203) being arranged on a fixed plate (204), the fixed plate (204) being connected to the base plate (1), and the first slider (203) being connected to a pressure detection mechanism (3).

3. A glass lifter tension force detection device according to claim 2, characterized in that: The pressure detection mechanism (3) comprises a wire rope top rod (301), the wire rope top rod (301) is connected to a first connecting plate (302), a pressure sensor (303) is arranged between the wire rope top rod (301) and the first connecting plate (302), the first connecting plate (302) is connected to a first slider (203), and the pressure sensor (303) is connected to a controller.

4. A glass lifter tension force detection device according to claim 3, characterized in that: Slide grooves (205) are provided on both sides of the fixing plate (204), and second slide blocks (206) cooperating with the slide grooves (205) are provided on both sides of the first slide block (203).

5. A glass lifter tension force detection device according to claim 4, characterized in that: The slide groove (205) is configured as a U-shaped structure, and the test end of the wire rope top rod (301) is configured as an arc surface.

6. A glass lifter tension force detection device according to any one of claims 2 to 5, characterized in that: A mechanism mounting seat (4) is connected to a side of the bottom plate away from the transmission mechanism (2); the mechanism mounting seat (4) is arranged as an L-shaped structure; the mechanism mounting seat (4) is connected to a right-angle plate (5); and the right-angle plate (5) is connected to two side surfaces of the mechanism mounting seat (4).

7. A glass lifter tension force detection device according to claim 6, characterized in that: The motor (201) is connected to a second connecting plate (207), the second connecting plate (207) is connected to the fixing plate (204), and through holes are formed on both sides and the bottom of the second connecting plate (207).

8. The glass lifter tension force detection device according to claim 5, characterized in that: One side of the fixed plate (204) is connected to a limit block (6), a displacement sensor (7) is provided on the limit block (6), and the displacement sensor (7) is connected to a controller.

9. A glass lifter tension force detection device according to claim 8, characterized in that: The limit block (6) comprises an upper limit block (601), an origin limit block (602) and a lower limit block (603); the upper limit block (601) is connected to one end of one side of a fixed plate (204); an upper limit displacement sensor (701) is arranged on the upper limit block (601); the lower limit block (603) is connected to the other end of one side of a fixed plate (204); a lower limit displacement sensor (703) is arranged on the lower limit block (603); the origin limit block (602) is arranged at a middle position between the upper limit block (601) and the lower limit block (603); the origin limit block (602) is connected to one side of the fixed plate (204); and an origin displacement sensor (702) is arranged on the origin limit block (602).

10. A method for testing a glass lifter tension force detection device, implemented by a glass lifter tension force detection device as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step S1, starting the motor (201) to provide power for pressure detection; Step S2, transmitting the pressure to the pressure sensor (303) through the wire rope mandrel (301), and displaying the output pressure value; Step S3, feeding back the displacement to the controller, and the feedback displacement value is the tension force displacement.

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