Online assembly inspection method for mechanical hand brake

Abstract

The invention discloses a mechanical hand brake online assembly inspection method, which comprises the following steps of: (1) placing a base on a vehicle floor, sleeving a mechanical hand brake on a positioning pin, and connecting the mechanical hand brake with a hand brake fixing piece, so that the mechanical hand brake and the hand brake fixing piece can rotate simultaneously; (2) setting the total rotation frequency of a turntable to be (N + 1) times; (4) after the magnetic counter detects that the turntable completes N times of rotation, the control center receives a signal to enable the turntable to reversely rotate for one time, and meanwhile, the hand brake button driving assembly releases the hand brake button (5), the turntable stops rotating, and the mechanical hand brake and the rocker are rotated at the same time to complete N times of pulling-up and putting-down actions. And the mechanical hand brake is in a standing state, and the detection work is completed. According to the invention, the labor intensity of workers is effectively reduced, the online inspection time of the mechanical hand brake is prolonged, the operation time is shortened, the production efficiency of a production line is improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of automobile assembly, and in particular to an online assembly inspection method for a mechanical handbrake. Background Art

[0002] The handbrake is an essential and important component in the automobile braking system. It is used to prevent the vehicle from rolling away when parking on a slope or in special circumstances. Its assembly effect must meet the relevant national standards for slope parking.

[0003] After the handbrake is assembled on the production line, it needs to be repeatedly pulled up and lowered several times before the vehicle rolls off the line. The main purposes are: 1. Eliminate the fit clearance of the connection positions of various components in the mechanical handbrake system and the elongation of the cable; 2. Adjust the clearance between the brake-related components to ensure that the handbrake system is in the best condition when in use.

[0004] In the traditional operation method, the assembler needs to enter the cab and manually pull the mechanical handbrake to the limit position, repeatedly pull it up and put it down 10 times, and then check the handbrake tension value. When assembling the center console cover online, the handbrake also needs to be pulled up. The whole process is labor-intensive and labor-costly. In addition, the operators engaged in the above work need to have rich work experience and high operating skills to be competent. However, due to the inconsistency of the perceived tension of different operators, the perceived tension of different vehicles by the same person each time is also inconsistent, and the quality of the handbrake online inspection cannot be guaranteed. In addition, with the acceleration of the production rhythm of the automobile industry, the requirements for the assembly operation time of the automobile production line are getting shorter and shorter. The above operation process is time-consuming and inefficient, which seriously affects the stability of the production rhythm. Summary of the invention

[0005] In order to solve the above problems, the present invention provides an online assembly inspection method for a mechanical handbrake, which can specifically adopt the following technical solutions: The on-line assembly inspection method for a mechanical handbrake of the present invention is implemented by an on-line assembly inspection device for a mechanical handbrake, wherein: The mechanical handbrake online assembly inspection device comprises: a base disposed on the vehicle floor; A positioning pin, arranged on the side of the base, adapted to fit into the steering column hole of the mechanical handbrake; A rocker, one end of which is rotatably connected to the positioning pin, and the other end of which is provided with a handbrake fixing member and a handbrake button driving assembly; A driving assembly, comprising a turntable arranged on the same side as the rocker, a connecting rod arranged between the turntable and the rocker, one end of the connecting rod connected to the middle of the rocker, and the other end of the connecting rod eccentrically connected to the turntable; A control unit, comprising a magnetic counter for detecting the number of revolutions of the turntable, wherein a signal output end of the magnetic counter is connected to a signal input end of a control center, and a control output end of the control center is connected to a control input end of a turntable drive mechanism and a control input end of the handbrake button drive assembly, respectively; The mechanical handbrake online assembly inspection method comprises the following steps: S1, place the base on the vehicle floor to form a support, and at the same time, sleeve the steering column hole of the mechanical handbrake on the positioning pin, and clamp the mechanical handbrake into the handbrake fixing part on the rocker so that the two can rotate at the same time; S2, set the total number of rotations of the turntable to (N+1) times; S3, the turntable rotates forward N times. When the turntable starts to rotate, the handbrake button driving component presses the handbrake button, and the mechanical handbrake and the joystick rotate at the same time, completing N times of pulling up and lowering actions; S4, when the magnetic counter detects that the turntable has completed N rotations, the control center receives a signal to make the turntable rotate in the opposite direction once, and at the same time, the handbrake button driving component releases the handbrake button; S5, the turntable stops rotating and the mechanical handbrake is in the upright state, completing the inspection work.

[0006] Preferably, the turntable driving mechanism comprises a forward and reverse motor arranged in the base, and the output shaft of the forward and reverse motor is connected to the center of the turntable.

[0007] Preferably, the handbrake fixing member includes a fixed end and a clamping end, the fixed end is fixed to the rocker by bolts, and the clamping end is located below the mechanical handbrake and is an open groove adapted to the mechanical handbrake.

[0008] Preferably, the handbrake button drive assembly includes an electric push rod arranged below the rocker, one end of the electric push rod is connected to the rocker through a fixed bracket, and the other end of the electric push rod is provided with a button pressure block, the button pressure block is arranged opposite to the handbrake button, and the button pressure block is slidably connected to a guide member arranged at the tail of the rocker.

[0009] Preferably, a slide groove is provided on the side of the button pressing block, and the guide member is a U-shaped structure provided on both sides of the button pressing block.

[0010] Preferably, a power supply is arranged in the base, a power switch and the magnetic counter are arranged on the top cover of the base, and a magnet block which mutually inducts with a counting module of the magnetic counter is arranged at the periphery of the turntable.

[0011] The mechanical handbrake online assembly inspection method provided by the present invention has a compact structure design, simple and fast operation, and can replace manual handbrake stretching operations, automatically complete the required number of handbrake stretching operations, and the handbrake is pulled up in the same position each time, the torque generated is the same, the pulling force is the same, and the force value of repeated stretching is stable, meeting the requirements of mechanical handbrake online assembly inspection. The present invention effectively reduces the labor intensity of employees, greatly improves the time for online inspection of mechanical handbrakes, greatly shortens the operation time, improves the production efficiency of the production line, reduces production costs, and has very good practicality, convenience and promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the online assembly inspection device for the mechanical handbrake of the present invention.

[0013] Figure 2 yes Figure 1 Rear view of. DETAILED DESCRIPTION

[0014] The following is a detailed description of an embodiment of the present invention in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific working process are given, but the protection scope of the present invention is not limited to the following embodiment.

[0015] like Figure 1 , 2 As shown, the online assembly inspection method for a mechanical handbrake of the present invention is implemented by an online assembly inspection device for a mechanical handbrake.

[0016] The above-mentioned mechanical handbrake online assembly inspection device comprises a base 1 arranged on the vehicle floor, and a positioning pin 2 adapted to the steering column hole of the mechanical handbrake M is arranged on the side of the base 1. The positioning pin 2 is rotatably connected to one end of a rocker 3, and the other end of the rocker 3 is provided with a handbrake fixing member 4 and a handbrake button driving assembly.

[0017] The handbrake fixing member 4 is divided into a fixed end and a clamping end, wherein the fixed end is fixed to the rocker 3 by two fastening bolts 41, and the clamping end is an open groove adapted to the mechanical handbrake M, which is located below the mechanical handbrake M. After the mechanical handbrake M is plugged into the positioning pin 2, it is clamped in the open groove of the handbrake fixing member 4, and the mechanical handbrake M can rotate with the rocker 3.

[0018] The handbrake button driving assembly includes an electric push rod 51 arranged below the rocker 3, one end of the electric push rod 51 is connected to the rocker 3 through a fixed bracket 52, and the other end is provided with a button pressing block 53, the button pressing block 53 is arranged opposite to the handbrake button, and the button pressing block 53 can be pushed or released under the action of the electric push rod 51. When the handbrake button is in a pressed state, the mechanical handbrake can be easily pulled up and put down until the corresponding number of times is completed as required. Preferably, the handbrake button driving assembly also includes a guide member 54 arranged at the tail of the rocker 3, the guide member 54 is a U-shaped structural member arranged on both sides of the button pressing block 53, and the button pressing block 53 is provided with a slide groove on both sides, which is slidably connected to the guide member 54.

[0019] In order to enable the rocker 3 and the mechanical handbrake M to be automatically pulled up and lowered, a driving assembly is also provided on the base 1. The driving assembly includes a turntable 61 arranged on the same side as the rocker 3, and a connecting rod 62 is arranged between the turntable 61 and the rocker 3, one end of the connecting rod 62 is connected to the middle part of the rocker 3, and the other end is eccentrically connected to the turntable 61. The above-mentioned turntable 61 is driven by a forward and reverse motor 63 arranged in the base 1, and the output shaft of the above-mentioned forward and reverse motor 63 is connected to the center of the turntable 61. When the forward and reverse motor 63 rotates continuously in one direction, due to the action of the eccentric connecting rod 62, the rocker 3 and the mechanical handbrake M can be repeatedly pulled up and lowered. After the detection is completed, the forward and reverse motor 63 is usually rotated in the opposite direction to stop the mechanical handbrake M in the vertical placement position.

[0020] In order to achieve the purpose of unattended and automatic detection, the present invention is also provided with a control unit. The control unit includes a magnetic counter 71 arranged on the top cover of the base 1 for detecting the number of rotations of the turntable, the signal output end of the magnetic counter 71 is connected to the signal input end of the control center, and the control output end of the control center is respectively connected to the control input end of the turntable drive mechanism (i.e., the forward and reverse motor 63) and the control input end of the handbrake button drive component (i.e., the electric push rod 51).

[0021] Usually, the distance between the center of the turntable 61 and the top cover of the base 1 is smaller than the radius of the turntable 61, and a magnet block 72 is installed at the periphery of the turntable 61 to sense the counting module of the magnetic counter 71. The magnetic counter 71 counts once each time the turntable 61 rotates one circle.

[0022] In addition, a rechargeable battery is installed in the base 1 as a power supply, and a power switch is provided on the top cover of the base 1.

[0023] The online assembly inspection method for a mechanical handbrake of the present invention comprises the following steps: S1, place the base 1 on the vehicle floor to form a support, and at the same time, sleeve the steering column hole of the mechanical handbrake M on the positioning pin 2, and clamp the mechanical handbrake M into the handbrake fixing member 4 on the rocker 3, so that the two can rotate at the same time; S2, set the total number of rotations of the turntable to (N+1) times, N≥5.

[0024] S3, turn on the power switch, so that the forward and reverse motor 63 drives the turntable 61 to rotate forward. While rotating, the electric push rod 51 works, and the handbrake button is pressed in through the button pressing block 53, so that the rocker 3 drives the mechanical handbrake M to pull up and put down according to the counting requirement. The forward and reverse motor 63 drives the turntable 61 to rotate forward N times.

[0025] S4, when the magnetic counter 71 detects that the turntable 61 has completed N rotations, the control center receives a signal to reverse the forward and reverse motor 63, thereby reversing the turntable 61, and at the same time, the electric push rod 51 works to release the handbrake button. The forward and reverse motor 63 drives the turntable 61 to rotate in the reverse direction once.

[0026] S5, when the turntable completes (N+1) rotations, the forward and reverse motor 63 stops running, at which time the mechanical handbrake M is in an upright state, completing this detection work. This state is convenient for the device to perform the detection work of the next car.

[0027] It should be noted that, in the description of the present invention, terms indicating orientation or positional relationships, such as "front", "rear", "left", "right", "vertical", "horizontal", "inside", "outside", etc., are based on the orientation or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

Claims

1. A method for online assembly inspection of a mechanical handbrake, implemented by an online assembly inspection device for a mechanical handbrake, characterized in that: The mechanical handbrake online assembly inspection device comprises: a base disposed on the vehicle floor; A positioning pin, arranged on the side of the base, adapted to fit into the steering column hole of the mechanical handbrake; A rocker, one end of which is rotatably connected to the positioning pin, and the other end of which is provided with a handbrake fixing member and a handbrake button driving assembly; A driving assembly, comprising a turntable arranged on the same side as the rocker, a connecting rod arranged between the turntable and the rocker, one end of the connecting rod connected to the middle of the rocker, and the other end of the connecting rod eccentrically connected to the turntable; A control unit, comprising a magnetic counter for detecting the number of revolutions of the turntable, wherein a signal output end of the magnetic counter is connected to a signal input end of a control center, and a control output end of the control center is connected to a control input end of a turntable drive mechanism and a control input end of the handbrake button drive assembly, respectively; The mechanical handbrake online assembly inspection method comprises the following steps: S1, place the base on the vehicle floor to form a support, and at the same time, sleeve the steering column hole of the mechanical handbrake on the positioning pin, and clamp the mechanical handbrake into the handbrake fixing part on the rocker so that the two can rotate at the same time; S2, set the total number of rotations of the turntable to (N+1) times; S3, the turntable rotates forward N times. When the turntable starts to rotate, the handbrake button driving component presses the handbrake button, and the mechanical handbrake and the joystick rotate at the same time, completing N times of pulling up and lowering actions; S4, when the magnetic counter detects that the turntable has completed N rotations, the control center receives a signal to make the turntable rotate in the opposite direction once, and at the same time, the handbrake button driving component releases the handbrake button; S5, the turntable stops rotating and the mechanical handbrake is in the upright state, completing the inspection work.

2. The method for online assembly inspection of a mechanical handbrake according to claim 1, characterized in that: The turntable driving mechanism comprises a forward and reverse motor arranged in a base, and an output shaft of the forward and reverse motor is connected to the center of the turntable.

3. The method for online assembly inspection of a mechanical handbrake according to claim 1, characterized in that: The handbrake fixing member includes a fixed end and a clamping end, the fixed end is fixed to the rocker by a bolt, and the clamping end is located below the mechanical handbrake and is an open groove adapted to the mechanical handbrake.

4. The method for online assembly inspection of a mechanical handbrake according to claim 1, characterized in that: The handbrake button drive assembly includes an electric push rod arranged below the rocker, one end of the electric push rod is connected to the rocker through a fixed bracket, and the other end of the electric push rod is provided with a button pressing block, the button pressing block is arranged opposite to the handbrake button, and the button pressing block is slidably connected to a guide member arranged at the tail of the rocker.

5. The method for online assembly inspection of a mechanical handbrake according to claim 4, characterized in that: A sliding groove is arranged on the side of the button pressing block, and the guide member is a U-shaped structure arranged on both sides of the button pressing block.

6. The method for online assembly inspection of a mechanical handbrake according to claim 1, characterized in that: A power supply is arranged in the base, a power switch and the magnetic counter are arranged on the top cover of the base, and a magnet block which is mutually inductive with a counting module of the magnetic counter is arranged on the periphery of the turntable.

Images