CN212110418U

CN212110418U - Force sensor device applied to brake pedal robot

Info

Publication number: CN212110418U
Application number: CN202020620825.4U
Authority: CN
Inventors: 甄凯
Original assignee: China Auto Research Automobile Inspection Center Ningbo Co ltd
Current assignee: China Auto Research Automobile Inspection Center Ningbo Co ltd; CATARC Automotive Test Center Ningbo Co Ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-12-08
Anticipated expiration: 2030-04-23

Abstract

The utility model relates to a be applied to brake pedal robot's force sensor device, including outer frame, base, deformation piece and signal cable, outer frame internal rotation install the deformation piece, the upper and lower both sides at deformation piece both ends all be provided with a foil gage, all be provided with a rectangular through-hole along length direction between the foil gage that this deformation piece middle part is located per two upper and lower arrangements, base upper end middle part and deformation piece between install the cushion, the signal cable install in the base and be connected with all foil gages one-to-one. The utility model discloses it is higher to footboard power measurement accuracy, and the cost is lower.

Description

Force sensor device applied to brake pedal robot

Technical Field

The utility model relates to an automotive test equipment technical field especially relates to a be applied to force sensor device of brake pedal robot.

Background

Since 1980, many scientific research institutes and companies in foreign countries have started to develop driving robots in succession, and the products have been produced in large quantities, such as STAHLE, ABD, HORIBA, and the like in germany, but the driving robots have disadvantages of high price, long supply period, poor after-sales service, and the like.

The driving robot in China starts related research work later, just before the beginning of the 21 st century, like southeast university, northern aviation, China steam research and the like, at present, no mature product exists, and the functions, the performance, the reliability and the stability, the volume, the control system and the like of the driving robot have larger differences.

Meanwhile, the driving robot has the research difficulties of optimizing an actuating mechanism, rapidly adapting to different vehicle types or the same vehicle type, balancing between vehicle control precision and a simulated human driver, coordinating control among actuators and the like, and development trends of developing an outdoor automobile driving robot capable of being used for ADAS test, considering the influence of different driving styles on vehicle test on the premise of realizing control precision, improving the performance of the driving robot by applying various advanced control methods and the like.

Through market research and analysis, no automatic driving robot product for an indoor hub rotating test oriented to energy consumption and environment tests exists in the market at present, and a gear shifting manipulator becomes a chicken rib at present when an automatic transmission automobile occupies the mainstream; the hub rotation test is carried out by using the full-function driving robots such as ABD, STAHLE and the like which consume huge resources of 200 ten thousand yuan, and the large materials and the small materials are used, so that the cost performance is low; at present, energy consumption and environment tests, even ADAS and automatic driving tests are vigorous in demand situation when new energy automobiles and intelligent networked automobiles develop rapidly; at present, leg type driving robots in the market occupy a main driving seat, and cannot be suitable for passenger cabin air conditioning comfort dummy and the like.

Therefore, it is imperative to break through monopoly and neck technology of foreign driving robots and to realize localization of products, wherein the brake pedal robot is one of the important ones. In the process of developing the brake pedal robot, the force sensor device is the most important, and the force on the brake pedal can be accurately measured or not is directly influenced.

Disclosure of Invention

The utility model aims to solve the technical problem that a be applied to brake pedal robot's force sensor device is provided, and footboard power measurement accuracy is higher, and the cost is lower.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a be applied to brake pedal robot's force transducer device, includes outer frame, base, deformation piece and signal cable, outer frame internal rotation install the deformation piece, the upper and lower both sides at deformation piece both ends all be provided with a foil gage, this deformation piece middle part is located all to be provided with a rectangular through-hole along length direction between per two foil gages of arranging from top to bottom, base upper end middle part and deformation piece between install the cushion, the signal cable install in the base and be connected with all foil gages one-to-one.

As right technical scheme a supplement, the left and right sides of deformation piece all rotate with outer frame inner wall through the pivot and be connected.

As right technical scheme a supplement, the both sides of outer frame upper end all install the locking screw that links to each other with the pivot is perpendicular.

As right technical scheme a supplement, outer frame around the middle part of both sides all open the mounting hole.

As a supplement to the technical scheme of the utility model, outer frame be the rectangular frame structure.

As right technical scheme a supplement, the vertical opening in deformation piece middle part have first through wires hole, first through wires hole upper end open-ended both sides and lower extreme opening both sides all have first wire casing along length direction open, deformation piece upper end install protective cover plate.

As right technical scheme a supplement, the vertical second through wires hole that opens in cushion middle part, base upper end open and to have the second wire casing, this second wire casing extends to the base middle part from the base tip, the base tip be located second wire casing top and install fixed cover plate.

Has the advantages that: the utility model relates to a be applied to brake pedal robot's force sensor device has following several advantages:

1. the cushion block heightens the whole deformation block, so that a larger gap is formed between the deformation block and the base, and the deformation block is prevented from being deformed too much by pressure to damage a strain gauge on the lower surface;

2. the deformation block and the base can rotate in multiple directions together, so that the application range is wide;

3. the four strain gauges are symmetrically arranged up and down, left and right, so that the pedal force measurement precision is improved, the strain gauges are attached to the surfaces of the deformation blocks, the pedal receives pulling pressure to cause the deformation of the deformation blocks, and further the deformation of the strain gauges is triggered to excite the change of the responding electric signals;

4. two strip-shaped through holes are symmetrically dug in the middle of the deformation block, so that the measuring range of the force sensor can be guaranteed through the stress deformation of the deformation block, and the deformation change rate (sensor resolution) and the precision requirement of the deformation block can be guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the present invention with the pedal clamping device and the outer frame removed;

fig. 3 is a schematic structural diagram of a deformation block according to the present invention;

fig. 4 is a schematic structural diagram of the base according to the present invention.

The figure is as follows: 1. the device comprises a protective cover plate, 2, an outer frame, 3, a locking screw, 4, a shaft pin, 5, a base, 6, a pedal clamping device, 7, a mounting hole, 8, a deformation block, 9, a strip through hole, 10, a strain gauge, 11, a cushion block, 12, a signal cable, 13, a first threading hole, 14, a first wire groove, 15, a second threading hole, 16, a second wire groove, 17 and a fixed cover plate.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

The utility model discloses an embodiment relates to a be applied to force sensor device of brake pedal robot, as shown in fig. 1-4, including outer frame 2, base 5, deformation piece 8 and

signal cable

12, 2 internal rotations in outer frame install deformation piece 8, the upper and lower both sides at 8 both ends of deformation piece all be provided with a foil gage 10, should be out of shape 8 middle part and be located all be provided with a rectangular through-hole 9 along length direction between the foil gage 10 that per two arranged from top to bottom, 5 upper end middle parts of base and deformation piece 8 between install cushion 11, signal cable 12 install in base 5 and be connected with all foil gages 10 one-to-one.

The left and right sides of deformation piece 8 all be connected through pivot 4 and the rotation of outer frame 2 inner wall, the both sides of outer frame 2 upper end all install with the perpendicular locking screw 3 that links to each other of pivot 4, can rotate relatively between deformation piece 8 and the outer frame 2, the middle part of outer frame 2 front and back both sides all opened mounting hole 7, this mounting hole 7 also is used for installing pivot 4, also can rotate relatively between actuating mechanism of brake pedal robot and the outer frame 2 for deformation piece 8 and base 5 can multi-direction rotate together.

As shown in fig. 1, the base 5 is installed on the pedal clamping device 6, the base 5, the cushion block 11 and the pedal clamping device 6 are fixed together by common screws, and the cushion block 11 elevates the whole deformation block 8, so that a larger gap is formed between the deformation block 8 and the base 5, and the deformation block 8 is prevented from being deformed too much by pressure to damage the strain gauge 10 on the lower surface.

The outer frame 2 is in a rectangular frame structure.

The strain gauge 10 has four strain gauges, and in fig. 2, the position of the strain gauge 10 can be clearly seen, the strain gauge 10 is arranged in a vertical and left-right symmetrical mode, the pedal force measurement accuracy is improved, the strain gauge 10 is attached to the surface of the deformation block 8, the pedal can deform the deformation block 8 when receiving the pulling pressure, the deformation of the strain gauge 10 is further triggered, the response electric signal change is excited, and the electric signal change is transmitted through the signal cable 12.

Two strip-shaped through holes 9 are symmetrically dug in the middle of the deformation block 8, so that the measuring range of the force sensor can be guaranteed through the stress deformation of the deformation block 8, and the deformation change rate (sensor resolution) and the precision requirement of the deformation block 8 can be guaranteed.

The signal cable 12 is installed in the second wire casing 16 of signal cable 12, and fixed apron 17 is installed to 5 tip of base, and fixed apron 17 is used for pushing down signal cable 12 one end, adopts ordinary screw to link to each other between base 5 and the fixed apron 17, and the signal cable 12 other end stretches into the below of cushion 11 and passes second through wires hole 15, and signal cable 12 divides into four ways and links to each other with four foil gauges 10 one by one.

The middle of the deformation block 8 is vertically provided with a first threading hole 13, two sides of an upper end opening and two sides of a lower end opening of the first threading hole 13 are provided with first wire grooves 14 along the length direction, and the upper end of the deformation block 8 is provided with a protective cover plate 1. The first wire groove 14 and the first threading hole 13 are provided to assist the wiring arrangement of the signal cable 12.

Claims

1. A force sensor device applied to a brake pedal robot is characterized in that: including outer frame (2), base (5), deformation piece (8) and signal cable (12), outer frame (2) internal rotation install deformation piece (8), the upper and lower both sides at deformation piece (8) both ends all be provided with one foil gage (10), should warp and all be provided with one rectangular through-hole (9) along length direction between foil gage (10) that block (8) middle part is located per two upper and lower arrangements, base (5) upper end middle part and deformation piece (8) between install cushion (11), signal cable (12) install in base (5) and be connected with all foil gages (10) one-to-one.

2. The force sensor device applied to the brake pedal robot as set forth in claim 1, wherein: the left side and the right side of the deformation block (8) are rotationally connected with the inner wall of the outer frame (2) through shaft pins (4).

3. The force sensor device applied to the brake pedal robot as set forth in claim 2, wherein: and locking screws (3) vertically connected with the shaft pins (4) are arranged on two sides of the upper end of the outer frame (2).

4. The force sensor device applied to the brake pedal robot as set forth in claim 1, wherein: the middle parts of the front side and the rear side of the outer frame (2) are provided with mounting holes (7).

5. The force sensor device applied to the brake pedal robot as set forth in claim 1, wherein: the outer frame (2) is of a rectangular frame structure.

6. The force sensor device applied to the brake pedal robot as set forth in claim 1, wherein: the deformation block (8) middle part vertical division have first through wires hole (13), first wire casing (14) are all opened along length direction to this first through wires hole (13) upper end open-ended both sides and lower extreme opening both sides, deformation block (8) upper end install protection cover plate (1).

7. The force sensor device applied to the brake pedal robot as set forth in claim 1, wherein: the middle of the cushion block (11) is vertically provided with a second threading hole (15), the upper end of the base (5) is provided with a second wire groove (16), the second wire groove (16) extends to the middle of the base (5) from the end part of the base (5), and the end part of the base (5) is positioned above the second wire groove (16) and is provided with a fixed cover plate (17).