CN217900760U

CN217900760U - Be used for online automatic measuring device of car front axle length

Info

Publication number: CN217900760U
Application number: CN202222003902.3U
Authority: CN
Inventors: 王涛; 马艳兵; 施杰; 曹鹏; 张朝念
Original assignee: Hubei Bailan Axle Co ltd
Current assignee: Hubei Bailan Axle Co ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2022-11-25
Anticipated expiration: 2032-08-01

Abstract

The utility model relates to an automobile front axle detects technical field, especially relates to a be used for online automatic measuring device of automobile front axle length. The method comprises the following steps: the device comprises a conveying device, a light curtain sensor, a pulse encoder and a timer; the conveying device comprises a driving gear and a conveying belt; the conveying belt is used for bearing the front axle of the automobile; the driving gear is in transmission connection with the conveying belt so as to drive the conveying belt to move; the light curtain sensor is electrically connected with the pulse encoder and the timer; the detection area of the light curtain sensor is crossed with the conveying path of the conveying belt; the pulse encoder is meshed with the driving gear. In the prior art, the length of the front axle of the automobile is manually measured in a manual mode, and the mode wastes time and labor and has larger error. Compared with the prior art, the utility model discloses can accomplish the length measurement of car front axle automatically, effectually simplify the measurement process and reduce measuring error.

Description

Be used for online automatic measuring device of car front axle length

Technical Field

The utility model relates to an automobile front axle detects technical field, especially relates to an on-line automation measuring device for automobile front axle length.

Background

The front axle of an automobile is one of important components of the automobile. The automobile front axle is used as a security part, and the machining precision of the automobile front axle determines the assembly performance of the whole automobile steering system. In the process of machining the front axle of the automobile, the length of the front axle of the automobile is a key parameter for subsequent machining. When the automobile front shafts with different lengths are machined, a machining program needs to be adjusted in time, and the finished automobile front shaft products can be guaranteed to be qualified in size. Therefore, the accuracy and convenience of the measurement of the length of the front axle of the automobile are very important. However, the front axle of the automobile is an irregular workpiece with a long length and a heavy weight, which makes the length measurement difficult. When carrying out length measurement, need the manual work to overturn automobile front axle to the loading state, measure with the tape measure cooperation by two people, on the one hand the operation is inconvenient, wastes time and energy, and on the other hand measuring error is great.

SUMMERY OF THE UTILITY MODEL

To prior art's technical problem, the utility model provides an on-line automation measuring device for automobile front axle length.

In order to solve the technical problem, the utility model provides a following technical scheme:

an on-line automatic measuring device for the length of a front axle of an automobile, comprising: the device comprises a conveying device, a light curtain sensor, a pulse encoder and a timer; the conveying device comprises a driving gear and a conveying belt; the conveying belt is used for bearing the front axle of the automobile; the driving gear is in transmission connection with the conveying belt so as to drive the conveying belt to move; the light curtain sensor is electrically connected with the pulse encoder and the timer; the detection area of the light curtain sensor is crossed with the conveying path of the conveying belt; the pulse encoder is meshed with the driving gear.

In actual operation, the front axle of the automobile is placed on the conveyor belt by using the hoisting equipment. And starting the conveying device, and conveying the front axle of the automobile into the detection area of the light curtain sensor by the conveying belt under the action of the driving gear. When the front axle of the automobile enters the detection area of the light curtain sensor, the light curtain sensor is triggered, and then the timer and the pulse encoder are triggered to work. At this time, the timer starts counting. The pulse encoder starts to acquire the running speed of the driving gear. When the front axle of the automobile leaves the detection area of the light curtain sensor, the light curtain sensor is triggered again, and then the timer and the pulse encoder stop working. At this time, the operation time of the conveyor and the conveying speed of the conveyor are known. Therefore, the length of the front axle of the automobile can be obtained by knowing the time and the speed. To sum up, the utility model discloses can measure the length of car front axle, on the one hand, save manual measurement's trouble, the effectual measuring time that has reduced, on the other hand the effectual measuring error that has reduced.

Furthermore, the device also comprises a mounting plate; the mounting plate is fixedly connected with the light curtain sensor; the mounting plates are respectively arranged on two sides of the conveying belt, so that the detection direction of the light curtain sensor is perpendicular to the conveying path of the conveying belt.

Further, the timer is fixedly connected with the mounting plate; the timer comprises a laser transmitter and a laser receiver; the laser emitter is fixedly arranged on one of the mounting plates; the laser receiver is fixedly arranged on the other mounting plate; the laser transmitter corresponds to the laser receiver.

Furthermore, the device also comprises a PLC operation control unit and a display device; the pulse coder is electrically connected with the PLC operation control unit; the timer is electrically connected with the PLC operation control unit; the PLC operation control unit is electrically connected with the display device.

Further, the conveying device also comprises a supporting frame; the support frame is used for bearing the front axle of the automobile; the supporting frame is arranged on the conveying belt; the supporting frame is provided with a groove corresponding to the front axle of the automobile.

Furthermore, the support frame comprises a main support rod and an auxiliary support rod; the main support rod is vertical to the conveying belt; the main support rod corresponds to the gravity center of the front axle of the automobile; the auxiliary supporting rod is connected with the main supporting rod; the auxiliary support rod extends from the main support rod to the end of the front axle of the automobile.

Furthermore, the support frame also comprises a connecting rod; the number of the connecting rods is multiple; one end of the connecting rod is connected with the main support rod; the other end of the connecting rod is connected with the auxiliary supporting rod.

Furthermore, the conveying device also comprises a main bearing rod and an auxiliary bearing rod; the main bearing rod is jointed with the conveying belt; the main bearing rod is fixedly connected with the auxiliary bearing rod; the main bearing rod is vertical to the auxiliary bearing rod; the main bearing rod extends from one end of the conveying device to the other end of the conveying device along the conveying path of the conveying belt.

Further, the conveying device also comprises a protection plate; the protection plate is fixedly connected with the conveying belt; the protection plate is attached to the main bearing rod; the cross section of the protection plate corresponds to the projection of the support frame on the main bearing rod.

Compared with the prior art, the utility model has the advantages of it is following:

the utility model discloses length measurement to the car front axle is quick, accurate more.

The utility model discloses fully considered the weight of car front axle to conveyor's influence, through the pressure that reduces the conveyer belt and bear, effectively conducted the weight of car front axle, reduced conveyer belt wear pattern and reduced the loss of car front axle to conveyor utility life.

Drawings

FIG. 1: the overall structure diagram.

FIG. 2 is a schematic diagram: support frame structure chart.

FIG. 3: internal structure of the conveying device.

FIG. 4: timer structure chart.

In the figure: 1. a conveying device; 11. a drive gear; 12. a conveyor belt; 13. a support frame; 132. a main support bar; 133. an auxiliary support rod; 134. a connecting rod; 14. a main load-bearing bar; 15. auxiliary bearing rods; 16. a protection plate; 2. a light curtain sensor; 3. a pulse encoder; 4. a timer; 41. a laser transmitter; 42. a laser receiver; 5. and (7) mounting the plate.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

An on-line automatic measuring device for the length of a front axle of an automobile, comprising: the device comprises a conveying device 1, a light curtain sensor 2, a pulse encoder 3, a timer 4 and a mounting plate 5. The conveying device 1 comprises a driving gear 11, a conveying belt 12, a supporting frame 13 for bearing a front shaft of an automobile, a main bearing rod 14, an auxiliary bearing rod 15 and a protection plate 16. The conveying belt 12 is in transmission connection with the driving gear 11, so that the conveying belt 12 can move continuously under the driving of the driving gear 11. The support frame 13 is provided on the conveyor belt 12. The support frame 13 includes a main support rod 132, an auxiliary support rod 133, and a connecting rod 134. The main support bar 132 is perpendicular to the conveyor belt 12. The main support bar 132 corresponds to the center of gravity of the front axle of the vehicle. The end of the main support bar 132 remote from the conveyor belt 12 is provided with a recess corresponding to the front axle of the vehicle. Meanwhile, the section of the main support rod 132 is in a T shape, and the joint area of the main support rod 132 and the conveying belt 12 is larger than the joint area of the main support rod 132 and the front axle of the automobile, so that the weight of the front axle of the automobile is conveniently dispersed, and the pressure born by the conveying belt 12 is reduced. Preferably, as shown in the drawings, the number of the main support rods 132 is two, and the two main support rods 132 are symmetrical to each other, so as to enhance the supporting effect on the front axle of the vehicle. The auxiliary support bar 133 is connected to the main support bar 132. The auxiliary support rod 133 extends from the main support rod 132 toward the end of the front axle of the vehicle. The auxiliary support rod 133 is also provided with a groove corresponding to the front axle of the vehicle to assist the main support rod 132 to bear the front axle of the vehicle. The number of the connecting rods 134 is plural, and one end of the connecting rod 134 is connected to the main supporting rod 132. The other end of the connecting rod 134 is connected to the auxiliary supporting rod 133. Therefore, the main support rod 132, the auxiliary support rod 133 and the connecting rod 134 are combined together to form a plurality of triangular structures, the structural strength of the support frame 13 is effectively enhanced, and the support frame 13 is helpful for supporting the front axle of the automobile. Meanwhile, the contact area between the support frame 13 and the conveying belt 12 is further increased, on one hand, the pressure born by the conveying belt 12 is further reduced, the serious influence of the weight of the front axle of the automobile on the service life of the conveying belt 12 is avoided, and on the other hand, the situation that the support frame 13 falls down when supporting the front axle of the automobile can be effectively avoided. The main bearing rod 14 and the auxiliary bearing rod 15 are arranged in an annular area enclosed by the conveying belt 12. The auxiliary bearing bar 15 is connected with the main body frame of the conveying device 1. The main load bar 14 extends along the conveying path of the conveyor belt 12 from one end of the conveyor 1 to the other end of the conveyor 1. Meanwhile, the main bearing rod 14 and the auxiliary bearing rod 15 are fixedly connected and perpendicular to each other. Therefore, in the process that the support frame 13 moves along with the conveyor belt 12, the support frame 13 can transmit the weight of the front axle of the automobile to the auxiliary bearing rod 15 through the main bearing rod 14, and finally, the weight is transmitted to the ground through the main body frame of the conveyor device 1. Thereby, the load-bearing capacity of the conveyor 1 is effectively enhanced. The section of the protection plate 16 corresponds to the projection of the support frame 13 on the main bearing rod 14. A protective plate 16 is arranged between the conveyor belt 12 and the main load-bearing bar 14. The protective plate 16 is fixedly connected with the conveyor belt 12. The protective plate 16 is attached to the main load-bearing bar 14. In particular, the connection between the protection plate 16 and the conveyor belt 12 can be as follows: the conveyer belt 12 is provided with through holes corresponding to the protection plates 16. The protection plate 16 is fixed with the conveying belt 12 by means of screws and nuts. Alternatively, an adhesive is provided between the shielding plate 16 and the conveyor belt 12, thereby directly adhering the shielding plate 16 to the conveyor belt 12. In actual operation, the support frame 13 applies a great pressure to the conveyor belt 12, which results in a large friction force at the joint of the conveyor belt 12 and the main bearing rod 14, and further causes severe abrasion at the joint of the conveyor belt 12 and the main bearing rod 14, and the protective plate 16 can effectively reduce the abrasion of the conveyor belt 12, thereby prolonging the service life of the conveyor belt 12.

The mounting plates 5 are disposed on both sides of the conveyor belt 12. The light curtain sensor 2 is divided into a light curtain generator and a light curtain receiver. The two parts are mounted on two mounting plates 5 respectively. The connecting line between the light curtain generator and the light curtain receiver is the detection area of the light curtain sensor 2. The positions of the light curtain generator and the light curtain receiver are adjusted so that the detection area of the light curtain sensor 2 is perpendicular to the conveying path of the conveyor belt 12. It should be noted that the width of the light curtain generated by the light curtain sensor 2 should at least correspond to the maximum width of the front axle of the vehicle, so as to avoid the light curtain sensor 2 from being misjudged during the measurement process. The timer 4 includes a laser transmitter 41 and a laser receiver 42. The laser emitter 41 is fixedly mounted on one of the mounting plates 5 and the laser receiver 42 is fixedly mounted on the other mounting plate 5. The laser transmitter 41 corresponds to the laser receiver 42. In actual installation, the laser emitter 41 and the laser receiver 42 should be installed at least in such a position that the front axle of the automobile does not block the laser emitter 41 or the laser receiver 42 when passing through the light curtain sensor 2. The pulse encoder 3 is engaged with the drive gear 11 to acquire the operating speed of the drive gear 11. Meanwhile, the light curtain sensor 2 is electrically connected with the pulse encoder 3 and the timer 4.

During actual operation, the front axle of the automobile is hoisted to the support frame 13 in the posture shown in the attached drawing, so that the front axle of the automobile is embedded into the groove in the support frame 13 and is fully attached to the support frame 13. At this time, the conveying device 1 is started, and the conveying belt 12 drives the front shaft of the automobile to move in a direction close to the light curtain sensor 2 through the support frame 13 under the driving of the driving gear 11. When the front axle of the automobile shelters from the light curtain sensor 2, the light curtain sensor 2 is triggered, and then the timer 4 and the pulse encoder 3 are triggered. At this time, the pulse encoder 3 starts operating, and the operating speed of the drive gear 11 is acquired. The laser transmitter 41 periodically transmits laser to the laser receiver 42, and the running time of the driving gear 11 can be obtained by the number of times of receiving the laser by the laser receiver 42. When the car front axle passes through the light curtain sensor 2, namely the car front axle no longer shelters from the light curtain sensor 2, will trigger the light curtain sensor 2 again. At this time, the pulse encoder 3 and the timer 4 stop operating. Thus, the operating speed and the operating time are obtained through the above-described procedure, and the operator can know the operating distance of the drive gear 11, that is, the length of the front axle of the vehicle, through a simple multiplication. When the measurement is completed, the front axle of the automobile on the support frame 13 is taken down, and the driving gear 11 is controlled to rotate reversely, so that the conveying belt 12 drives the support frame 13 to move reversely to the initial position, and the next measurement is facilitated. Thus, the shielding plate 16 moves only within a specific range and does not move to the position where the driving gear 11 is located, so that the driving gear 11 is not influenced to normally drive the conveyor belt 12 to move.

To sum up, the utility model discloses can effectively accomplish the measurement of car front axle length work, compare in adopting tape measure measuring mode by two staff, the utility model discloses a measurement process is quick more, simple and easy, and measuring error is littleer.

Meanwhile, the device also comprises a PLC operation control unit and a display device. The PLC operation control unit is electrically connected with the pulse encoder 3, the timer 4 and the display device. Thus, the multiplication process can be completed by the PLC operation control unit, and the calculation result can be displayed on the display device. Therefore, the calculation process can be further accelerated, and the calculation result can be displayed more intuitively.

Wherein, the pulse encoder 3 can select ohm dragon 2000 type. The light curtain sensor 2 can select a KT10-24-A type. The PLC operation control unit can select MAM-KY16S type.

It should be noted that the maximum length of the supporting frame 13 should be smaller than the maximum length of the front axle of the vehicle to avoid the supporting frame 13 from exiting the light curtain sensor 2 earlier than the front axle of the vehicle.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a be used for automatic measuring device of car front axle length on line which characterized in that: the method comprises the following steps: the device comprises a conveying device (1), a light curtain sensor (2), a pulse encoder (3) and a timer (4);

the conveying device (1) comprises a driving gear (11) and a conveying belt (12);

the conveying belt (12) is used for bearing the front axle of the automobile;

the driving gear (11) is in transmission connection with the conveying belt (12) so as to drive the conveying belt (12) to move;

the light curtain sensor (2) is electrically connected with the pulse encoder (3) and the timer (4);

the detection area of the light curtain sensor (2) is crossed with the conveying path of the conveying belt (12); the pulse encoder (3) is meshed with the driving gear (11).

2. An on-line automatic measuring device for the length of the front axle of the automobile according to claim 1, characterized in that: also comprises a mounting plate (5);

the mounting plate (5) is fixedly connected with the light curtain sensor (2);

the mounting plates (5) are respectively arranged on two sides of the conveying belt (12) so that the detection direction of the light curtain sensor (2) is perpendicular to the conveying path of the conveying belt (12).

3. An on-line automatic measuring device for the length of the front axle of the automobile according to claim 2, characterized in that: the timer (4) is fixedly connected with the mounting plate (5);

the timer (4) comprises a laser transmitter (41) and a laser receiver (42);

the laser emitter (41) is fixedly arranged on one of the mounting plates (5);

the laser receiver (42) is fixedly arranged on the other mounting plate (5);

the laser transmitter (41) corresponds to the laser receiver (42).

4. An on-line automatic measuring device for the length of the front axle of the automobile according to claim 1, characterized in that: the PLC operation control unit and the display device are also included;

the pulse encoder (3) is electrically connected with the PLC operation control unit;

the timer (4) is electrically connected with the PLC operation control unit;

the PLC operation control unit is electrically connected with the display device.

5. An on-line automatic measuring device for the length of the front axle of the automobile according to claim 1, characterized in that: the conveying device (1) further comprises a supporting frame (13);

the supporting frame (13) is used for bearing the front axle of the automobile;

the supporting frame (13) is arranged on the conveying belt (12);

and a groove corresponding to the automobile front axle is formed in the support frame (13).

6. An on-line automatic measuring device for the length of the front axle of the automobile according to claim 5, characterized in that: the support frame (13) comprises a main support rod (132) and an auxiliary support rod (133);

the main supporting rod (132) is vertical to the conveying belt (12);

the main support rod (132) corresponds to the center of gravity of the front axle of the automobile;

the auxiliary supporting rod (133) is connected with the main supporting rod (132);

the auxiliary support rod (133) extends from the main support rod (132) to the end of the front axle of the automobile.

7. An on-line automatic measuring device for the length of the front axle of the automobile according to claim 6, characterized in that: the support frame (13) further comprises a connecting rod (134);

the number of the connecting rods (134) is multiple;

one end of the connecting rod (134) is connected with the main supporting rod (132);

the other end of the connecting rod (134) is connected with the auxiliary supporting rod (133).

8. An on-line automatic measuring device for the length of the front axle of the automobile according to claim 6, characterized in that: the conveying device (1) further comprises a main bearing rod (14) and an auxiliary bearing rod (15);

the main bearing rod (14) is attached to the conveying belt (12);

the main bearing rod (14) is fixedly connected with the auxiliary bearing rod (15);

the main bearing rod (14) is vertical to the auxiliary bearing rod (15);

the main bearing rod (14) extends from one end of the conveying device (1) to the other end of the conveying device (1) along the conveying path of the conveying belt (12).

9. An on-line automated measuring device for the length of an automobile front axle according to claim 8, characterized in that: the conveying device (1) further comprises a protection plate (16);

the protection plate (16) is fixedly connected with the conveying belt (12);

the protection plate (16) is attached to the main bearing rod (14);

the cross section of the protection plate (16) corresponds to the projection of the support frame (13) on the main bearing rod (14).