CN112345138A

CN112345138A - Automobile door closing force testing device

Info

Publication number: CN112345138A
Application number: CN201910732861.1A
Authority: CN
Inventors: 陈新风; 饶楠
Original assignee: Shanghai Volvo Automobile Research And Development Co ltd
Current assignee: Shanghai Volvo Automobile Research And Development Co ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2021-02-09
Anticipated expiration: 2039-08-09
Also published as: CN112345138B

Abstract

A door closing force testing device for an automobile comprises: the first sucker and the second sucker are suitable for being sucked to the car door, and the central axes of the first sucker and the second sucker are arranged along the longitudinal direction; a segmented link supported by the first and second suction cups, the link having a central axis disposed axially; a sensor frame fixed to the link rod near the second suction cup; a force sensor mounted on the sensor frame; and a thrust handle mounted to the force sensor; wherein the link has an adjustable axial length and has a released state rotatable about its central axis and a locked state locked relative to the second suction cup.

Description

Automobile door closing force testing device

Technical Field

The application relates to a portable device for testing the door closing force of a vehicle.

Background

The traditional portable automobile door closing force testing device generally adopts an adhesive or magnetic attraction mode to install a sensor. Too strong a fixing glue may damage the car paint, too weak a fixing glue may not be firm, and the chemical properties of the glue may also cause corrosive effects on the car paint. The sharp-pointed part of magnetism probably fish tail car lacquer, can't install usually on non-steel door plant material, and force transducer is in the intermediate position and need great installation face make the force measuring point can't be close to the door edge. In addition, when the door does not have the vertical plane, the horizontal installation of force sensor can not be guaranteed to these two kinds of mounting methods, can cause data error during the test.

Disclosure of Invention

The present application is directed to a portable device for testing the closing force of a vehicle that overcomes at least some of the problems associated with the prior art.

According to one aspect of the present application, there is provided a door closing force testing apparatus for an automobile, which defines longitudinal, axial and transverse directions perpendicular to each other, and includes:

the first sucker and the second sucker are suitable for being sucked to the car door, and the central axes of the first sucker and the second sucker are arranged along the longitudinal direction;

a segmented link supported by the first and second suction cups, the link having a central axis disposed axially;

a sensor frame fixed to the link rod near the second suction cup;

a force sensor mounted on the sensor frame; and

a push handle mounted to the force sensor;

wherein the link has an adjustable axial length and has a released state rotatable about its central axis and a locked state locked relative to the second suction cup.

According to one possible embodiment, the first end of the connecting rod is fixed to the first suction cup in a longitudinally position-adjustable manner.

According to one possible embodiment, the first end of the link is fixed to the first suction cup by means of a bracket having a longitudinally extending elongated hole, the first end of the link being connected to the bracket by means of a bolt passing through said elongated hole.

According to one possible embodiment, the connecting rod comprises at least two segments, between which the locking and unlocking of the segments is obtained.

According to a possible embodiment, a levelness measuring and display module is provided on the sensor frame.

According to a possible embodiment, the connecting rod is supported by the second suction cup through a fixed mount, which is fixedly mounted to the second suction cup, the connecting rod passing through an axial through hole in the fixed mount.

According to one possible embodiment, the sensor frame is arranged around the holder.

According to one possible embodiment, the fastening frame is equipped with a fastening screw which is screwed through the fastening frame toward the connecting rod, by means of which fastening and releasing of the connecting rod relative to the fastening frame is achieved.

According to a possible embodiment, the testing device further comprises a bracing seat cooperating with the sensor frame in a manner rotatable about the central axis of the connecting rod, said bracing seat having at its lateral ends a pair of telescopic legs arranged towards the vehicle door for pushing against the vehicle door.

According to a possible embodiment, the lateral distance between the pair of telescopic legs is greater than the lateral width of the sensor frame.

According to a possible embodiment, the tensioning seat is fixed to the fixed frame.

According to a possible embodiment, the sensor frame comprises a sensor support plate supporting the force sensor, and an arc-shaped matching portion is arranged between the sensor support plate and the tightening seat.

According to the application, the adjustable automobile door closing force testing device adopts a nondestructive installation mode with the pump sucker, the application range of the surface of the automobile door is enlarged, the force close to the edge of the door can be measured, and the stability of the front and the rear directions is greatly improved.

Drawings

FIG. 1 is a schematic view of the installation position of the door closing force testing device of the present application on a vehicle door;

FIG. 2 is a top view of a door closing force testing device for a vehicle according to an embodiment of the present application;

fig. 3 and 4 are a front view and a side view of the door closing force testing device of the automobile in fig. 1, respectively;

fig. 5 is an exploded perspective view of the door closing force testing apparatus of the vehicle of fig. 1.

Detailed Description

A possible embodiment of the door closing force test apparatus for a vehicle according to the present application will be described below with reference to the accompanying drawings.

First, as shown in fig. 1, the door closing force testing device 1 of the present application is applied to a door 2 of an automobile. The door 2 has a pivot side edge 2a and an opening/closing side edge 2 b. The door 2 is able to rotate about a door pivot (not shown) at a pivot side edge 2a, so that the door 2 opens and closes. An elongated door-closing force testing device 1 is applied between the pivot-side edge 2a and the opening-closing-side edge 2b for testing the pushing force applied to the door 2 at the opening-closing-side edge 2b required for closing the door 2.

To describe the orientation of the vehicle and the door-closing force testing device 1, as shown in fig. 1, the front-back direction of the vehicle is defined as X-axis, the left-right direction is defined as Y-axis, and the vertical direction is defined as Z-axis, wherein the X-axis and the Y-axis are located in the horizontal plane, and the Z-axis is perpendicular to the horizontal plane. The door-closing force test device 1 is applied to the vehicle door 2 substantially parallel to the X-axis.

One possible configuration of the door closing force test device 1 is shown in fig. 2-5. As shown in these figures, the door closing force testing device 1 is generally elongated and comprises a first pump cup 11 and a second pump cup 12 axially spaced from each other, the first pump cup 11 being located at a first axial end of the door closing force testing device 1 and the second pump cup 12 being located at or near a second axial end of the door closing force testing device 1. When the door-closing force testing device 1 is applied to the door 2 of the automobile as shown in fig. 1, the first belt pump pad 11 is applied to the door 2 near the pivot side edge 2a, and the second belt pump pad 12 is applied to the door 2 near the opening/closing side edge 2 b.

As shown in the drawing, the first suction cup with pump 11 mainly includes: the suction cup comprises a suction cup body 11a used for being adsorbed on a vehicle door, a suction surface is defined at the front side of the suction cup body 11a, a base 11b supporting the back side of the suction cup body 11a, a manual pump 11c connected to the base 11b and used for controlling negative pressure generated in the suction cup body 11a, a shell 11d fixed on the base 11b, and a bolt 11e arranged on the shell 11 d. The central axis of the bolt 11e substantially coincides with the central axis of the suction cup body 11 a. The second suction cup with pump 12 mainly includes: a suction cup body 12a for being sucked to a door, a suction surface defined by a front side of the suction cup body 12a, a base 12b supporting a back side of the suction cup body 12a, a manual pump 12c connected to the base 12b for operating negative pressure generated in the suction cup body 12a, a screw hole 12d provided in the base 12b, and an optional fixing bar 12e for assisting fixing of the manual pump 12 c. The

suction cup bodies

11a and 12a are made of an elastic material. In the assembled state of the door closing force testing device 1, the suction surfaces of the suction cup body 11a and the suction cup body 12a are substantially coplanar, the central axes of the suction cup body 11a and the suction cup body 12a are substantially parallel to each other and define the longitudinal direction of the door closing force testing device 1, the manual pump 12c is substantially defined to face the first pump-equipped suction cup 11, and the manual pump 11c may be arranged in any orientation suitable for operation.

Furthermore, a segmented connecting rod 13 extends axially from the first belt pumping disc 11 towards the second belt pumping disc 12. The connecting rod 13 comprises at least two segments axially telescopic relative to each other, shown in the figures as a first segment 13a, a second segment 13b, and a third segment 13c, each in the form of a circular tube. The second segment 13b is partially inserted into the first segment 13a, and the first segment 13a and the second segment 13b are connected by a quick-lock sleeve drum 13 d. The third section 13c is partially inserted into the second section 13b, and the second section 13b and the third section 13c are connected by a quick lock sleeve 13 e. The quick-lock sleeve drum 13d and the quick-lock sleeve drum 13e are provided with

lock handles

13f, 13g, respectively. Releasing (e.g., cocking) the

locking handles

13f, 13g by the operator places the quick

lock sleeve drums

13d, 13e in a released state such that the second section 13b is telescoped relative to the first section 13a and the third section 13c is telescoped relative to the second section 13 b. The operator locks (e.g., depresses) the locking handles 13f, 13g to place the quick

lock sleeve drums

13d, 13e in a locked state such that the second segment 13b is locked relative to the first segment 13a and the third segment 13c is locked relative to the second segment 13 b. This allows the length of the link 13 to be adjusted. The link 13 is not limited to the form of a quick lock sleeve drum, but may be in other forms such as a rotary side knob tightening or a rotary coaxial nut locking.

The end of the third section 13c (i.e. the rear end of the connecting rod 13) is provided with an axially projecting bolt 13h for connection of the connecting rod 13 to the first belt pumping disc 11 by means of a right angle bracket 14. Specifically, the bracket 14 includes a first portion 14a and a second portion 14b that are perpendicular to each other. The first section 14a has a through hole 14c formed therein, and a bolt 11e on the first belt pumping disc 11 passes through the through hole 14c and is locked by a nut (not shown) to fix the first section 14a to the first belt pumping disc 11. The second portion 14b has an elongated hole 14d formed therein, the elongated hole 14d extending in a direction perpendicular to the suction surface of the suction cup body 11a of the first belt pumping tray 11, and a bolt 13h at the rear end of the link 13 can be passed through the elongated hole 14d and tightened by a nut (not shown) to fix the link 13 and the bracket 14 together. Thus, the rear end of the link 13 can be fixed to the first belt pumping disc 11 by the bracket 14. It will be appreciated that the rear end of the link 13 may be secured to the bracket 14 by other forms of fastening structure. For example, a screw hole may be formed at the rear end of the link 13, and the rear end of the link 13 may be locked to the bracket 14 by a bolt passing through the elongated hole 14 d. Furthermore, the support 14 is not limited to the right-angled form shown, but may take any suitable form as long as it enables the rear end of the link 13 to be connected to the first belt pumping shoe 11 and the longitudinal position of the rear end of the link 13 relative to the first belt pumping shoe 11 to be adjusted.

Referring to fig. 5, the front portion of the first section 13a of the link 13 is fixed to the second pumped suction cup 12 by means of a fixing frame 15. The holder 15 includes a first portion 15a and a second portion 15b connected to each other. The first portion 15a defines an axial through hole 15c therein, and the first section 13a of the link 13 is insertable into the axial through hole 15c such that the mount 15 is rotatable about the first section 13a to adjust the angular position of the mount 15 relative to the link 13. Furthermore, at least one (two are shown in the embodiment in fig. 5) longitudinal threaded hole 15d is formed in the first portion 15a, said longitudinal threaded hole 15d penetrating from the outside of the first portion 15a to the axial through hole 15 c. After the angular position of the holder 15 relative to the connecting rod 13 has been determined, a fixing bolt 16 with a manually operable screw head is screwed into the axial through hole 15c, so that the end of the fixing bolt 16 presses against the outer periphery of the first section 13a of the connecting rod 13, fixing the holder 15 and the connecting rod 13 together. Alternatively, to increase the firmness of the fixation, a structure for increasing the friction force, such as a gasket, a slotted slider, etc., may be added between the bolt 16 and the first section 13a of the connecting rod 13. On the other hand, the second portion 15b is in the form of a pair of branch legs 15b1, 15b2 which are laterally opposed to each other, the pair of branch legs 15b1, 15b2 being pushed against the base 12b across the manual pump 12c of the second pumped-up suction cup 12, and then the fixing frame 15 and the second pumped-up suction cup 12 are fixed together by bolts (not shown) which pass through the pair of branch legs 15b1, 15b2 and are screwed into the threaded holes 12 d. An optional securing strap 12e may be secured to the pair of branch legs 15b1, 15b2 by passing around an overhanging portion of the manual pump 12c of the second pumped suction cup 12 to facilitate a secure connection between the securing bracket 15 and the second pumped suction cup 12.

The door-closing force testing device 1 further includes a rotatable frame (sensor frame) disposed around the fixed frame 15, the rotatable frame including a pair of side plates 21 located on both lateral sides of the fixed frame 15, a sensor support plate 22 located on a front side of the fixed frame 15, and a stay plate 23 located on a rear side of the fixed frame 15, the rotatable frame being capable of rotating with respect to the fixed frame 15.

The sensor support plate 22 includes a substantially rectangular plate-shaped main body portion 22a and an arc-shaped portion 22b connected to the main body portion 22 a. The sensor support plate 22 has a substantially symmetrical configuration with an axis of symmetry substantially coinciding with the central axes of the first and second

belt pumping pads

11, 12. In the longitudinal direction, the arc-shaped portion 22b is located on the same side as the

suction cup bodies

11a and 12 a. The main body portion 22a has a through hole 22c formed therein corresponding to the axial through hole 15c of the holder 15, and the first segment 13a of the link 13 is insertable into the through hole 22 c. The side of the arc portion 22b facing away from the main body portion 22a is formed with an arc projection 22d, and the center of the arc defined by the arc projection 22d is located on the central axis of the link 13. A sensor mounting hole 22e is formed in a side of the main body portion 22a facing away from the arc portion 22 b. The front portions of the pair of side plates 21 are fixed to both sides of the sensor support plate 22 by bolts. Further, a screw hole 22f extending from both sides thereof to the through hole 22c is provided in the sensor support plate 22, and a fixing bolt 28 (see fig. 3) is screwed through the screw hole 22f to be pushed against the first section 13a of the link 13 to fix the sensor support plate 22 to the first section 13a of the link 13.

The support plate 23 is in the form of a square plate in which a through hole 23a is formed corresponding to the axial through hole 15c of the holder 15, and the first section 13a of the link 13 is inserted into the axial through hole 15c through the through hole 23 a. The rear portions of the pair of side plates 21 are fixed to both sides of the stay 23 by bolts.

The rotatable frame thus configured can be rotated relative to the fixed frame 15 about the first segment 13a of the link 13 in a state where the fixing bolt 16 is not tightened and the lock lever 13f is loosened.

The sensor support plate 22 is held in axial position relative to the fixed frame 15 by the attachment plate 24 and the tightening socket 25.

The connecting plate 24 includes a first portion 24a and a second portion 24b connected to each other, the first portion 24a having a through hole 24c formed therein corresponding to the axial through hole 15c of the holder 15, and the first segment 13a of the link 13 being insertable through the through hole 24 c. The second portion 24b of the connecting plate 24 is fixed to the front end of the second portion 15b of the fixed frame 15 by bolts. Also, the connecting plate 24 is located between the mount 15 and the sensor support plate 22 in the axial direction.

The tightening sockets 25 are arranged at substantially the same axial position of the sensor support plate 22 and are located on the same side as the

suction cup bodies

11a and 12a in the longitudinal direction with respect to the center axis of the link 13.

The tightening socket 25 is formed with an arc-shaped guide groove 25a that is engaged with the arc-shaped protrusion 22d of the sensor support plate 22. The stay seat 25 is fixed to the second portion 24b of the connection plate 24 by a bolt and cooperates with the arc-shaped guide groove 25a by the arc-shaped projection 22d to rotatably support the sensor support plate 22. Meanwhile, the arc-shaped protrusion 22d is clamped in the axial direction between the tightening seat 25 and the second portion 24b of the attachment plate 24, thereby defining the axial position of the sensor support plate 22.

The tightening socket 25 has a lateral width larger than that of the sensor support plate 22. Threaded holes 25b extending in the longitudinal direction are formed in both lateral ends of the tightening socket 25, respectively. In addition, lateral notches 25c are formed in both lateral ends of the tightening seat 25, respectively, and each lateral notch 25c traverses a corresponding through hole 25 b.

Each lateral end of the tensioning seat 25 is provided with a foot 26 and a nut 27, respectively. Each leg 26 includes a threaded portion 26a and an associated leg portion 26 b. Alternatively, the leg portion 26b is three-dimensionally rotatably connected to the threaded portion 26a via a ball head. The nuts 27 are inserted in the respective transverse notches 25c, the threaded portions 26a of the legs 26 projecting into the through holes 25b of the tensioning seat 25 and screwed through the nuts 27. In the longitudinal direction, the two leg portions 26b are located on the same side as the

suction cup bodies

11a and 12 a. Between the threaded portion 26a and the foot portion 26b of each foot 26 is a portion 26c that can be manually secured by an operator. By turning the nut 27, the distance between the leg portion 26b and the holder 25 can be adjusted. Optionally, a similar set of support structures (not shown) may be added to the arcuate portion 22b of the sensor support plate 22 near the door edge side.

The force sensor 30 for measuring the door-closing force has a first mounting portion 30a and a second mounting portion 30 b. The first mounting portion 30a is mounted into the sensor mounting hole 22e to fix the force sensor 30 to the sensor support plate 22.

The push knob 31 is attached to the second attachment portion 30b of the force sensor 30.

Optionally, on the rotating frame, a levelness measuring and displaying module 40 (shown in fig. 2, 3) is mounted. The level measurement and display module 40 may include leveling elements in the form of bubble levels, numbers, and the like. By means of the levelness measuring and displaying module 40, the angular position of the rotatable frame can be displayed. Alternatively, a displacement sensor for measuring the movement position of the door edge, and/or other sensors such as a gyroscope for measuring the door angle may be mounted on the option frame. Optionally, modules for signal processing and/or display of measured values can be mounted on the option frame.

It will be appreciated that the rotatable frame is not limited to the structure described above, as long as it is capable of supporting the sensor 30 and rotating relative to the mount 15.

The application of the door-closing force testing device 1 to the vehicle door 2 is described below. Before application, the bolt 13h and the fixing bolt 16 are not tightened, the locking levers 13f and 13g are in a loosened state, and the leg portion 26b is located at a longitudinal position closer to the central axis of the link 13 than the

suction cup bodies

11a and 12 a.

The operator attaches the second belt pump suction pad 12 to the vehicle door 2 near the opening/closing side edge 2b and attaches the first belt pump suction pad 11 to the vehicle door 2 near the pivot side edge 2a by operating the manual pumps 12c and 11c, respectively. The suction positions of the first belt pumping pad 11 and the second belt pumping pad 12 are adjusted so that the link 13 is parallel to the horizontal plane (X-Y plane).

Next, the operator adjusts the position of the bolt 13h or other fastening structure relative to the elongated hole 14d so that the link 13 is parallel to the X-axis. The adjusting bolt 13h is then tightened with a nut or other fastening structure.

Next, the operator turns the push handle 31, so that the rotatable frame is turned relative to the fixed frame 15, so that the center axis (i.e., the force measuring direction) of the force sensor 30 is parallel to the Y-axis. The rotatable frame is then locked with respect to the first section 13a of the link 13 by the fixing bolt 16, and the second section 13b and the third section 13c of the link 13 are locked with respect to the first section 13a and the second section 13b by the locking

levers

13f, 13g, respectively. Thus, the length of the link 13 is fixed, and the force measuring direction of the force sensor 30 is in the Y direction. Then, by adjusting the distance by which the leg 26 protrudes from the sensor support plate 22, the leg 26 is tightened against the vehicle door, thereby improving the support rigidity of the force sensor 30 with respect to the vehicle door.

It is to be noted that the angular position adjustment described above can be implemented by means of an optional levelness measuring and display module 40.

The operator may then connect the output of the force sensor 30 to the data acquisition line of the detection device. Thereafter, the door can be opened and the door closing force measured by pushing the push handle 31.

According to the application, the adjustable automobile door closing force testing device adopts a nondestructive installation mode with the pump sucker, is suitable for any smooth automobile door surface (iron, aluminum, carbon fiber, composite materials and the like), and increases the application range of the automobile door surface.

In addition, the mode of fixing two points with large span in the front and the back enables the device to measure the force close to the edge of the door, and the stability in the front and back directions is greatly improved.

In addition, the distance between the two telescopic ball head horseshoe-shaped support legs is long, and the stability of the sensor in the vertical direction is enhanced.

In addition, the multi-dimensional adjustability can effectively ensure the measurement accuracy; the rotation adjusting function and the indicating device can ensure that the force sensor is horizontally installed.

The horizontal state of the clamp is displayed through an intuitive LED or Bar, and the installation of the adjusting device for a user is facilitated.

Although the present application has been described herein with reference to particular embodiments, the scope of the present application is not intended to be limited to the details shown. Various modifications may be made to these details without departing from the underlying principles of the application.

Claims

1. A door closing force testing apparatus for an automobile, which defines longitudinal, axial and transverse directions perpendicular to each other, and comprises:

a sensor frame fixed to the link rod near the second suction cup;

a force sensor mounted on the sensor frame; and

a push handle mounted to the force sensor;

2. The door-closing force testing device for the automobile as claimed in claim 1, wherein the first end of the link is fixed to the first suction cup in a longitudinally position-adjustable manner.

3. The door-closing force testing device of claim 2, wherein the first end of the link is fixed to the first suction cup by a bracket having a long hole extending in a longitudinal direction, and the first end of the link is coupled to the bracket by a bolt passing through the long hole.

4. The door-closing force testing device according to any one of claims 1 to 3, wherein the link comprises at least two segments, and the two segments are locked and unlocked with each other.

5. The door-closing force testing device of any one of claims 1 to 4, wherein a levelness measuring and displaying module is provided on the sensor frame.

6. The door-closing force testing device of any one of claims 1 to 5, wherein the connecting rod is supported by the second suction cup through a fixing bracket, the fixing bracket is fixedly mounted on the second suction cup, and the connecting rod passes through an axial through hole in the fixing bracket.

7. The door-closing force testing device of claim 6, wherein the sensor frame is disposed around the fixing frame.

8. The door-closing force testing device for the automobile as claimed in claim 6 or 7, wherein the holder is equipped with a fixing bolt screwed through the holder toward the link, by which locking and unlocking of the link with respect to the holder is achieved.

9. The door-closing force testing device for the automobile as claimed in any one of claims 6 to 8, further comprising a stay base rotatably engaged with the sensor frame about a central axis of the link, the stay base having a pair of retractable legs at both lateral ends thereof disposed toward the door for urging against the door.

10. The door-closing force testing device of claim 9, wherein a lateral distance between the pair of retractable legs is greater than a lateral width of the sensor frame.

11. The door-closing force testing device of claim 9 or 10, wherein the stay base is fixed to the fixing frame.

12. The door-closing force testing device of any one of claims 9 to 11, wherein the sensor frame includes a sensor support plate supporting the force sensor, and an arc-shaped fitting portion is provided between the sensor support plate and the tightening seat.