CN104776792A - Automobile door closing gap measuring device and method - Google Patents

Abstract

The invention discloses an automobile door closing gap measuring device and method. The measuring device comprises a sensor, a door signal lamp, a storage battery and oscilloscopes, wherein the sensor, the door signal lamp and the storage battery form a series loop; the oscilloscopes are connected at two ends of the sensor in parallel; the sensor comprises a casing, a button, a spring, a static contact spring, a moving contact spring and a carbon film resistor, one end of the button extends into the casing and is connected with one end of the spring, the static contact spring and the carbon film resistor are mounted in the casing and located on two sides of the spring respectively, one contact of the moving contact spring is located between the static contact spring and the spring and contacted with the static contact spring, and the other contact of the moving contact spring is located between the carbon film resistor and the spring and contacted with the carbon film resistor. The measuring method comprises steps as follows: measuring the theoretical static value of automobile door closing gaps and measuring the theoretical dynamic value of the automobile door closing gaps. The measuring device and method can be used for measuring automobile door closing gaps of vehicles in both the static state and the running state, and the measurement accuracy can be improved.

Description

A kind of arrangements for automotive doors closes measurement mechanism and the measuring method thereof in gap

Technical field

The invention belongs to the detection field of automobile component, be specifically related to measurement mechanism and measuring method thereof that a kind of arrangements for automotive doors closes gap.

Background technology

The design parameter of the parts such as car door signal lamp switch, door-locking system, body hinge is from the size in door closing gap.The measuring method that traditional arrangements for automotive doors closes gap uses plasticine 8 to be fixed on (see Fig. 1) on car body 6, close entrance door 7 again plasticine 8 is flattened, then measure the minimum thickness of the pressed part of plasticine 8 with ruler 9, the minimum thickness of plasticine 8 is exactly the door closing gap value needing to measure.This method error of measuring is comparatively large, complicated operation, and the consistance of repetitive measurement is poor.

CN101936695A discloses seal clearance measuring instrument and the measuring method thereof of a kind of arrangements for automotive doors and gusset, and it adopts the magnetic seat of honour, flexible expansion link, magnetic probe seat, probe and the seal clearance of angle dial to car door and gusset to measure.There are the following problems for this measuring method: shake during closing of the door can cause the seal clearance value of measurement inaccurate, and its can not measuring vehicle travel time seal clearance (dynamic value in door closing gap), parameter accurately can not be provided for the design of the parts such as gate signal lamp switch, door-locking system, body hinge, the Theoretical Design value of the parts such as gate signal lamp switch, door-locking system, body hinge is easily caused not mated with actual seal clearance value, gate signal lamp switch assembly is likely crushed by car door, causes gate signal lamp switch to lose efficacy.

Summary of the invention

The object of this invention is to provide measurement mechanism and measuring method thereof that a kind of arrangements for automotive doors closes gap, with the door closing gap making it can measure stationary state vehicle, the door closing gap of transport condition vehicle can be measured again, improve measurement accuracy.

Arrangements for automotive doors of the present invention closes the measurement mechanism in gap, comprises sensor, oscillograph, gate signal lamp and accumulator, described sensor comprises housing, button, spring, static contact, movable contact spring and carbon resister, one end of described button is positioned at outside housing, the other end stretches in housing and is connected with one end of described spring, the other end of spring is arranged on housing bottom, button can relatively housing vertical movement Compress Spring, described static contact and carbon resister to be arranged in housing and to lay respectively at the both sides of spring, described movable contact spring has two feelers and is arranged on one end that button is positioned at housing, a feeler of movable contact spring is between static contact with spring and contact with static contact, another feeler of movable contact spring is between carbon resister with spring and contact with carbon resister, described static contact is connected with the negative electricity of oscillographic first probe and accumulator by car body attachment screw, described carbon resister is electrically connected by sensor interface one end with oscillographic second probe and gate signal lamp, and the positive pole of described accumulator is electrically connected with the other end of gate signal lamp, be equivalent to sensor, gate signal lamp, accumulator formation series loop, oscillograph is connected in parallel on the two ends of sensor, and when not measuring, accumulator line disconnects (namely not forming electric loop).

Its measuring principle is as follows: after door closing, car door pressing button, and Button Compression Springs also slides into a position with movable contact spring, and each position correspond to a resistance of carbon resister, and the voltage that each resistance is got shows on oscillograph; Therefore, each magnitude of voltage correspond to a door closing gap value, reads oscillographic magnitude of voltage, just can draw the closed gap value of car door after looking into voltage-door closing gap table.If storing cycle, the theoretical quiescent value in door closing gap just can be measured; If vehicle movement, the theoretical dynamic value in door closing gap also can be measured; Thus provide design parameter accurately for the design of the part such as gate signal lamp switch, door-locking system, body hinge of the car of same model.

Adopt above-mentioned measurement mechanism to carry out the measuring method in door closing gap, comprise the theoretical quiescent value step measuring door closing gap and the theoretical dynamic value step measuring door closing gap.

The theoretical quiescent value step in described measurement door closing gap comprises:

The first step, the measurement mechanism not connecting accumulator line is arranged on car body by car body attachment screw, corresponding to door closing gap place;

Second step, closed door, connect accumulator line, and read the magnitude of voltage that oscillograph shows;

3rd step, from the voltage-door closing gap table demarcated, find out door closing gap value corresponding to this magnitude of voltage, and open car door;

4th step, repeat second step, the 3rd step n time, the mean value getting n car door closure seam gap is the theoretical quiescent value in the door closing gap of measurement.

The theoretical dynamic value step in described measurement door closing gap comprises:

The first step, before vehicle does not start, the measurement mechanism not connecting accumulator line is arranged on car body by car body attachment screw, corresponding to door closing gap place;

Second step, vehicle is placed on four-way experiment table, starting characteristics test platform, allows vehicle simulation motion state;

3rd step, closed door, connect accumulator line, and read the magnitude of voltage curve that oscillograph shows;

4th step, the peak value of n dynamic value every on magnitude of voltage curve to be taken the mean, obtain one group of magnitude of voltage;

5th step, from the voltage-door closing gap table demarcated, find out one group of door closing gap value corresponding to this group magnitude of voltage;

6th step, the average getting this group door closing gap value are the theoretical dynamic value in the door closing gap measured.

Wherein, the scaling method of described voltage-door closing gap table is:

The first step, choose an automobile as calibration vehicle, amputate car door part (comprising car door and car body junction), and this car door part is placed on experiment table, the measurement mechanism not connecting accumulator line is arranged on car body by car body attachment screw, corresponding to door closing gap place;

Second step, door closing gap is set in different conditions (such as close completely and lock, completely closed but do not lock, completely closed etc.), connect accumulator line, read the magnitude of voltage that oscillograph shows, and measure door closing gap with ruler;

3rd step, recording voltage value and be worth in door closing gap one to one with magnitude of voltage, form voltage-door closing gap table of one group of standard.

Preferably, described n value is 5.

The present invention can measure the door closing gap of stationary state vehicle, the door closing gap of transport condition vehicle can be measured again, improve measurement accuracy, for the design of the part such as door lamp switch, car door lock, body hinge of the car of same model provides design parameter accurately, efficiently avoid the problem causing gate signal lamp switch to lose efficacy because door closing gap is inaccurate and occur.

Accompanying drawing explanation

Fig. 1 is the instrumentation plan that existing arrangements for automotive doors closes gap.

Fig. 2 is the structural representation that in the present invention, arrangements for automotive doors closes the measurement mechanism in gap.

Fig. 3 is the structural representation of sensor in the present invention.

Wherein, 1-sensor, 2-oscillograph, 3-gate signal lamp, 4-accumulator, 5-car body attachment screw, 6-car body, 7-car door, 8-plasticine, 9-ruler, 11-housing, 12-button, 13-spring, 14-static contact, 15-movable contact spring, 16-carbon resister, 17-sensor interface.

Embodiment

Below in conjunction with accompanying drawing, the present invention is elaborated.

Arrangements for automotive doors as shown in Figure 2 and Figure 3 closes the measurement mechanism in gap, comprises sensor 1, oscillograph 2, gate signal lamp 3 (play dividing potential drop effect, avoid short circuit) and accumulator 4.Sensor 1 comprises housing 11, button 12, spring 13, static contact 14, movable contact spring 15 and carbon resister 16, one end of button 12 is positioned at outside housing 11, the other end stretches in housing 11 and is connected with one end of spring 13, the other end of spring 13 is arranged on bottom housing 11, button 12 can relatively housing 11 vertical movement Compress Spring 13, static contact 14 and carbon resister 16 to be arranged in housing 11 and to lay respectively at the both sides of spring 13, movable contact spring 15 has two feelers and is arranged on one end that button 12 is positioned at housing 11, a feeler of movable contact spring 15 is between static contact 14 with spring 13 and contact with static contact 14, another feeler of movable contact spring 15 is between carbon resister 16 with spring 13 and contact with carbon resister 16, static contact 14 is connected with carbon resister 16 by movable contact spring 15, form path.Static contact 14 is connected with the first probe of oscillograph 2 and the negative electricity of accumulator 4 by car body attachment screw 5, carbon resister 16 is electrically connected with the second probe of oscillograph 2 and one end of gate signal lamp 3 by sensor interface 17, the positive pole of accumulator 4 is electrically connected with the other end of gate signal lamp 3, be equivalent to sensor 1, gate signal lamp 3, accumulator 4 form series loop, oscillograph 2 is connected in parallel on the two ends of sensor 1, when not measuring, accumulator line disconnects (namely not forming electric loop).

Its measuring principle is as follows: after car door 7 is closed, car door 7 presses button 12, button 12 Compress Spring 13 also slides on static contact 14 and carbon resister 16 with movable contact spring 15, each position on carbon resister 16 correspond to a resistance of carbon resister 16, and the voltage that each resistance is got shows on oscillograph 2; Therefore, each magnitude of voltage correspond to a door closing gap value, reads the magnitude of voltage of oscillograph 2, just can draw the closed gap value of car door after looking into voltage-door closing gap table.If storing cycle, the theoretical quiescent value in door closing gap just can be measured; If vehicle movement, the theoretical dynamic value in door closing gap also can be measured; Thus provide design parameter accurately for the design of the part such as gate signal lamp switch, door-locking system, body hinge of the car of same model.

Adopt above-mentioned measurement mechanism to carry out the measuring method in door closing gap, comprise the theoretical quiescent value step measuring door closing gap and the theoretical dynamic value step measuring door closing gap.

The theoretical quiescent value step measuring door closing gap comprises:

The first step, the measurement mechanism not connecting accumulator line is arranged on car body 6 by car body attachment screw 5, corresponding to door closing gap place;

Second step, closed door 7, connect accumulator line, and read the magnitude of voltage of display on oscillograph 2;

3rd step, from the voltage-door closing gap table demarcated, find out door closing gap value corresponding to this magnitude of voltage, and open car door 7;

4th step, repeat second step, the 3rd step 5 times, the mean value getting 5 car door closure seam gaps is the theoretical quiescent value in the door closing gap measured.

The theoretical dynamic value step measuring door closing gap comprises:

The first step, before vehicle does not start, the measurement mechanism not connecting accumulator line is arranged on car body 6 by car body attachment screw 5, corresponding to door closing gap place;

Second step, vehicle is placed on four-way experiment table, starting characteristics test platform, allows vehicle simulation motion state;

3rd step, closed door 7, connect accumulator line, and read the magnitude of voltage curve of display on oscillograph 2;

4th step, the peak value of n dynamic value every on magnitude of voltage curve to be taken the mean, obtain one group of magnitude of voltage;

5th step, from the voltage-door closing gap table demarcated, find out one group of door closing gap value corresponding to this group magnitude of voltage;

6th step, the average getting this group door closing gap value are the theoretical dynamic value in the door closing gap measured.Its formula is as follows: $\stackrel{\‾}{n}=\frac{\underset{1}{\overset{n}{\mathrm{\Σ}}}f\left(n\right)}{n}.$

Wherein, the scaling method of voltage-door closing gap table is:

The first step, choose an automobile as calibration vehicle, amputate car door part (comprising car door and car body junction), and this car door part is placed on experiment table, the measurement mechanism not connecting accumulator line is arranged on car body 6 by car body attachment screw 5, corresponding to door closing gap place;

Second step, door closing gap is set in different conditions (such as close completely and lock, completely closed but do not lock, completely closed etc.), connect accumulator line, read the magnitude of voltage of display on oscillograph 2, and measure door closing gap with ruler;

3rd step, recording voltage value and be worth in door closing gap one to one with magnitude of voltage, form voltage-door closing gap table (see table 1) of one group of standard.

Table 1.

Claims (3)

1. arrangements for automotive doors closes the measurement mechanism in gap, it is characterized in that: comprise sensor (1), oscillograph (2), gate signal lamp (3) and accumulator (4), described sensor comprises housing (11), button (12), spring (13), static contact (14), movable contact spring (15) and carbon resister (16), one end of described button (12) is positioned at housing (11) outward, the other end stretches in housing and is connected with one end of described spring (13), the other end of spring is arranged on housing bottom, button can relatively housing vertical movement Compress Spring, described static contact (14) and carbon resister (16) to be arranged in housing and to lay respectively at the both sides of spring (13), described movable contact spring (15) has two feelers and is arranged on one end that button is positioned at housing, a feeler of movable contact spring is between static contact with spring and contact with static contact, another feeler of movable contact spring is between carbon resister with spring and contact with carbon resister, described static contact (14) is connected with the first probe of oscillograph (2) and the negative electricity of accumulator (4) by car body attachment screw (5), described carbon resister (16) is electrically connected with the second probe of oscillograph (2) and one end of gate signal lamp (3) by sensor interface (17), and the positive pole of described accumulator (4) is electrically connected with the other end of gate signal lamp (3).

2. adopt above-mentioned measurement mechanism to carry out the measuring method in door closing gap, comprise the theoretical quiescent value step measuring door closing gap and the theoretical dynamic value step measuring door closing gap;

The theoretical quiescent value step in described measurement door closing gap comprises:

The first step, the measurement mechanism not connecting accumulator line is arranged on car body (6), corresponding to door closing gap place by car body attachment screw (5);

Second step, closed door (7), connect accumulator line, and read the magnitude of voltage of the upper display of oscillograph (2);

3rd step, from the voltage-door closing gap table demarcated, find out door closing gap value corresponding to this magnitude of voltage, and open car door (7);

4th step, repeat second step, the 3rd step n time, the mean value getting n car door closure seam gap is the theoretical quiescent value in the door closing gap of measurement;

The theoretical dynamic value step in described measurement door closing gap comprises:

The first step, before vehicle does not start, the measurement mechanism not connecting accumulator line is arranged on car body (6) by car body attachment screw (5), corresponding to door closing gap place;

Second step, vehicle is placed on four-way experiment table, starting characteristics test platform, allows vehicle simulation motion state;

3rd step, closed door (7), connect accumulator line, and read the magnitude of voltage curve of the upper display of oscillograph (2);

4th step, the peak value of n dynamic value every on magnitude of voltage curve to be taken the mean, obtain one group of magnitude of voltage;

5th step, from the voltage-door closing gap table demarcated, find out one group of door closing gap value corresponding to this group magnitude of voltage;

6th step, the average getting this group door closing gap value are the theoretical dynamic value in the door closing gap measured;

Wherein, the scaling method of described voltage-door closing gap table is:

The first step, choose a calibration vehicle, amputate car door part, and this car door part is placed on experiment table, the measurement mechanism not connecting accumulator line is arranged on car body (6), corresponding to door closing gap place by car body attachment screw (5);

Second step, door closing gap is set in different conditions, connects accumulator line, read the magnitude of voltage of the upper display of oscillograph (2), and measure door closing gap with ruler;

3rd step, recording voltage value and be worth in door closing gap one to one with magnitude of voltage, form voltage-door closing gap table of one group of standard.

3. employing measurement mechanism according to claim 2 carries out the measuring method in door closing gap, it is characterized in that: described n value is 5.