CN117067143B

CN117067143B - Swing arm installation method and device

Info

Publication number: CN117067143B
Application number: CN202311349956.8A
Authority: CN
Inventors: 王越柳; 李天音; 吴国荣; 王建英; 何磊; 孔洋帆; 陈龙
Original assignee: Wanxiang Intelligent Manufacturing Co ltd; Wanxiang Qianchao Co Ltd
Current assignee: Wanxiang Intelligent Manufacturing Co ltd; Wanxiang Qianchao Co Ltd
Priority date: 2023-10-18
Filing date: 2023-10-18
Publication date: 2023-12-29
Anticipated expiration: 2043-10-18
Also published as: CN117067143A

Abstract

The invention relates to the technical field of vehicle swing arms, in particular to a method and a device for installing a swing arm. The method comprises the following steps: the swing arm is put into the reference column of locating component, and the one end of the left detecting element of detecting component extends to first settlement position. One end of a first right clamping unit of the clamping assembly is abutted against one side of the swing arm, one end of a second left clamping unit of the clamping assembly is abutted against the other side of the swing arm, and the swing arm is driven to rotate towards the direction close to the left detection unit. The first right clamping unit and the second left clamping unit increase the abutting force and keep the first boss in a first range of the first setting position. The collar of the bushing is sleeved at one end of the mounting post of the swing arm, and the mounting lug of the bushing is abutted with the angle positioning unit of the positioning assembly. The angle positioning unit moves along the pressing direction in the pressing process. Thus, the problem of inaccurate positioning of the bushing in the process of mounting the bushing on the swing arm is solved.

Description

Swing arm installation method and device

Technical Field

The invention relates to the technical field of vehicle swing arms, in particular to a method and a device for installing a swing arm.

Background

The swing arm of the vehicle is an important component part of the suspension structure of the vehicle, is arranged between the frame and the wheels of the automobile, and is an important part for connecting the wheels and the automobile body. It can transmit driving force, braking force, steering force, etc. to realize the operations of acceleration, deceleration, braking, steering, etc. of vehicle. Meanwhile, the automobile body is damped and supported, and stability and comfort in the running process of the automobile are improved.

The swing arm is generally connected with the frame through a bushing, and the other end is connected with the tire through a swing arm ball head. The swing arm generally includes an arm body provided with a mounting post for mounting the bushing. The bushing not only has the capability of bearing tension, compression, torsion and deflection, but also can reduce the abrasion, vibration and noise of equipment, and is an indispensable part on the swing arm. At present, the bushing is mostly pressed into the mounting column through a pressing device, so that the bushing is fixedly connected with the mounting column. However, because the swing arm is a welding piece, the problems of deformation and the like exist, the positioning inaccuracy of the bushing in the installation process is easy to cause, the installation position of the bushing is inaccurate, the included angle between the bushing and the arm body is error, the mounting lug is deformed in the installation process of the bushing, and the bushing can not be taken out after the installation is completed.

Disclosure of Invention

The invention provides a swing arm installation method and device for solving the problem of inaccurate positioning in the process of installing a bushing on a swing arm.

In a first aspect, the present invention provides a swing arm mounting method, including:

step S11, based on the swing arm being placed in a positioning column of a positioning assembly, one end of a left detection unit of a detection assembly extends to a first set position;

Step S12, based on the fact that one end of the left detection unit extends to a first set position, one end of a first right clamping unit of the clamping assembly abuts against one side of the swing arm, one end of a second left clamping unit of the clamping assembly abuts against the other side of the swing arm, and the swing arm is driven to rotate towards the direction approaching to the left detection unit;

step S13, enabling a first boss of the swing arm to be in contact with one end of the left detection unit based on rotation of the swing arm, enabling the first right clamping unit and the second left clamping unit to increase contact force, and keeping the first boss in a first range of the first set position;

step S14, based on the first boss being located in the first range of the first set position, sleeving a collar of a bushing at one end of a mounting column of the swing arm, and abutting a mounting lug of the bushing with an angle positioning unit of a positioning assembly;

and S15, based on the fact that the pressing assembly presses the bushing to approach the swing arm, the angle positioning unit moves along the pressing direction.

In some embodiments, the step S15 includes:

step S151, based on the fact that the length of the pressing assembly, in which the collar extends into the mounting column, is smaller than or equal to half of the total pressing length of the collar, the positioning fork of the angle positioning unit and the collar move synchronously; wherein the mounting lugs are abutted with the positioning forks;

Step S152, based on the pressing component pressing the collar to extend into the mounting post by a length greater than half of the total pressing length of the collar, the moving speed of the positioning fork is greater than the moving speed of the collar, and the moving direction of the positioning fork is the same as the moving direction of the collar.

In some embodiments, the step S152 wherein the movement speed of the positioning fork being greater than the movement speed of the collar includes at least the mounting ear abutting the positioning fork when the collar pressing is completed.

In some embodiments, the step S15 further includes:

step S153, acquiring a driving force for driving the positioning fork to move based on the fact that the moving speed of the positioning fork is larger than the moving speed of the lantern ring;

step S154, acquiring historical position data of the first boss detected by the left detection unit based on the fact that the driving force for driving the positioning fork to move is larger than a driving force threshold value;

and step S155, adjusting the abutting force of the first right clamping unit and the second left clamping unit based on the fact that the change of the historical position data of the first boss is larger than a change threshold value, so that the current position data of the first boss changes towards the opposite direction of the historical position data.

In some embodiments, the step S15 includes:

step S156, based on the pressing component pressing the collar to a length less than or equal to half of the total pressing length of the collar, acquiring historical position data of the left detection unit for detecting the first boss;

and step S157, adjusting the abutting force of the first right clamping unit and the second left clamping unit based on the change of the historical position data of the first boss is larger than a change threshold value, so that the current position data of the first boss changes towards the opposite direction of the historical position data.

In some embodiments, the step S15 includes:

step S158, based on the pressing component pressing the collar to a length less than or equal to half of the total pressing length of the collar, acquiring first historical position data of the first left detection head of the left detection unit for detecting the first boss, and acquiring second historical position data of the second left detection head of the left detection unit for detecting the first boss;

and S159, adjusting the magnitude of the abutting force of the first right clamping unit and the second left clamping unit based on the difference value between the first historical position data and the second historical position data is larger than a difference threshold value, so that the difference value between the position data of the first boss detected by the first left detection head and the position data of the first boss detected by the second left detection head is reduced.

In some embodiments, the step S15 further includes:

step S1510, the press-fit assembly stops pressing the collar based on adjusting the magnitude of the abutment force of the first right clamping unit and the second left clamping unit;

step S1511, based on the adjustment of the abutment forces of the first right clamping unit and the second left clamping unit, the press assembly starts to press the collar.

In some embodiments, the step S14 includes:

step S141, extending a guide post of the pressing assembly into a central hole of the mounting post based on the first boss being located in the first range of the first set position;

step S142, sleeving the lantern ring on the guide post, and arranging the mounting lug in a positioning groove of a positioning fork of the angle positioning unit;

step S143, sleeving the collar at one end of the mounting column of the swing arm.

In some embodiments, the step S13 includes:

step S131, when the first boss is abutted with one end of the left detection unit, one end of the first left clamping unit is abutted with the other side of the swing arm;

step S132, based on the one end of the first left clamping unit abutting against the other side of the swing arm, the first right clamping unit, the first left clamping unit and the second left clamping unit increase an abutting force, and keep the first boss within the first range of the first setting position.

In a second aspect, the present invention provides a swing arm mounting device comprising:

the positioning assembly comprises a base, a positioning column and an angle positioning unit; the positioning column is detachably connected with the base and is used for positioning the mounting sleeve of the swing arm; the angle positioning unit is detachably connected with the base and is used for positioning the mounting lug of the bushing;

a detection assembly including a left detection unit; the left detection unit is detachably connected with the base and used for acquiring position data of a first boss of the swing arm;

the clamping assembly comprises a first right clamping unit and a second left clamping unit; the first right clamping unit is detachably connected with the base and used for clamping one side of the swing arm; the second left clamping unit is detachably connected with the base and used for clamping the other side of the swing arm;

and the pressing assembly is detachably connected with the base and used for pressing the bushing into the mounting column of the swing arm.

In order to solve the problem of inaccurate positioning in the process of installing the bushing on the swing arm, the invention has the following advantages:

1. the base is provided with the detection assembly and the clamping assembly, the detection assembly determines whether the positioning is accurate or not through detecting the position of the first boss, and the clamping assembly adjusts the position of the swing arm through adjusting the clamping force of the clamping head, so that the swing arm can be accurately positioned, the risk of deformation or damage of the bushing mounting lug is reduced, and the yield and efficiency of bushing and swing arm assembly are improved.

2. The base is provided with the angle positioning unit, and the positioning fork is provided with the groove to be matched with the mounting lug of the bushing, so that the bushing can be accurately positioned. The locating fork of the angle locating unit can move, and the locating fork starts to separate when the lantern ring of the mounting lug is pressed into one half of the length of the swing arm mounting column, so that the locating fork can be separated from the mounting lug of the bushing conveniently, the bushing is protected, and the bushing is prevented from deforming or wearing in the pressing process. Thereby improving the assembly efficiency of the bushing and the swing arm and reducing the deformation and abrasion risk of the bushing or the swing arm.

Drawings

FIG. 1 illustrates a swing arm and bushing installation flow diagram of one embodiment;

FIG. 2 illustrates a swing arm schematic of an embodiment;

FIG. 3 illustrates a swing arm and bushing combination schematic of an embodiment;

FIG. 4 illustrates a schematic diagram of a swing arm and bushing assembly apparatus of an embodiment;

FIG. 5 illustrates a partial enlarged schematic view of a swing arm and bushing assembly apparatus of an embodiment;

fig. 6 shows an enlarged partial schematic view of a swing arm and bushing assembly apparatus of another embodiment.

Reference numerals: 01 a positioning assembly; a base 11; 12 positioning columns; 13 angle positioning units; 131 a first driving section; 132 positioning forks; 133 sensor; 02 clamping assembly; 21 a first left clamping unit; 211 a first left clamping seat; 212 a second driving section; 213 first left gripping head; 22 a first right clamping unit; 221 a first right grip block; 222 a third driving section; 223 first right gripping head; 23 a second left clamping unit; 231 a second left clamping seat; 232 a fourth driving section; 233 a second left gripping head; a second right clamping unit 24; 241 a second right grip block; 242 a fifth driving section; 243 a second right gripping head; 03 a detection component; 31 left detection unit; 311 left detection seat; 312 a sixth driving section; 313 first left detection head; 314 a second left detection head; 32 right detection units; 321 right detection seat; 322 a seventh driving section; 323 a first right detection head; 324 second right detection head; 04 pressing the assembly; 41 pressing the joint; 42 eighth driving part; 43 guide posts; a swing arm 05; 51 arm body; 52 mounting a sleeve; 53 mounting posts; 54 a first boss; a second boss 55; 06 a bushing; a 61 collar; 62 mounting ears.

Detailed Description

The disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those of ordinary skill in the art to better understand and thus practice the present disclosure, and are not meant to imply any limitation on the scope of the present disclosure.

As used herein, the term "comprising" and variants thereof are to be interpreted as meaning "including but not limited to" open-ended terms. The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment. The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "transverse", "longitudinal", etc. refer to an orientation or positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate. Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be. Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.

The embodiment discloses a method for installing a swing arm 05, as shown in fig. 1, the method may include:

step S11, based on the swing arm 05 being put into the positioning column 12 of the positioning assembly 01, one end of the left detection unit 31 of the detection assembly 03 extends to a first set position;

step S12, based on the fact that one end of the left detection unit 31 extends to the first setting position, one end of the first right clamping unit 22 of the clamping assembly 02 abuts against one side of the swing arm 05, one end of the second left clamping unit 23 of the clamping assembly 02 abuts against the other side of the swing arm 05, and the swing arm 05 is driven to rotate towards the direction approaching the left detection unit 31;

step S13, based on the swing arm 05 rotating, the first boss 54 of the swing arm 05 is abutted against one end of the left detection unit 31, the first right clamping unit 22 and the second left clamping unit 23 increase the abutment force, and the first boss 54 is kept within the first range of the first setting position;

step S14, based on the first boss 54 being located in the first range of the first set position, sleeving the collar 61 of the bushing 06 at one end of the mounting post 53 of the swing arm 05, and abutting the mounting lug 62 of the bushing 06 with the angle positioning unit 13 of the positioning assembly 01;

in step S15, based on the pressing assembly 04 pressing the bushing 06 approaching the swing arm 05, the angular positioning unit 13 moves in the pressing direction.

In this embodiment, as shown in fig. 2, the swing arm 05 may include: arm 51, mounting sleeve 52, mounting post 53, first boss 54 and second boss 55. The arm 51 may be welded from two triangular sheet metal parts. The mounting sleeve 52 may be disposed at an end portion of a lower corner of the triangular arm 51, may be formed in a hollow circular tube shape, and may be used for connecting the arm 51 and the vehicle frame, or may be used for positioning when the bushing 06 is mounted. The mounting post 53 is located at an end of the upper corner of the triangular arm 51 and may be provided as a hollow tubular structure for mounting the bushing 06. The first boss 54 and the second boss 55 are provided on one side of the arm body 51, and the end surfaces thereof may be provided as flat surfaces as reference surfaces for positioning and detection.

As shown in fig. 3, the bushing 06 may include: collar 61 and mounting ears 62. The mounting lugs 62 are provided on the outer peripheral side of the collar 61 for connecting the collar 61 to the vehicle frame, and also for positioning the bush 06 when assembling the bush 06 and the swing arm 05. The collar 61 is in interference fit with the mounting post 53 of the swing arm 05, thereby effecting connection of the bushing 06 with the swing arm 05.

As shown in fig. 4 and 5, the swing arm 05 mounting device may include a positioning assembly 01, a clamping assembly 02, a detecting assembly 03, and a pressing assembly 04. As shown in fig. 6, the positioning assembly 01 may include a base 11, a positioning column 12, and an angular positioning unit 13. The positioning column 12 is detachably connected with the base 11 and is used for positioning the swing arm 05. An angle positioning unit 13 is detachably connected to the base 11 for positioning the bushing 06. As shown in fig. 6, the clamping assembly 02 may include a first right clamping unit 22 and a second left clamping unit 23. The first right clamping unit 22 and the second left clamping unit 23 are detachably connected with the base 11, respectively, for clamping the swing arm 05 to prevent movement thereof during press-fitting. As shown in fig. 6, the detecting assembly 03 may include a left detecting unit 31, and the left detecting unit 31 is detachably connected to the base 11 for detecting whether the position of the swing arm 05 is within a prescribed range. The bushing 06 may be installed within a prescribed range, otherwise, the position of the swing arm 05 needs to be adjusted so as to be within the prescribed range. As shown in fig. 4, the pressing assembly 04 is located at the top of the assembly device and is used for pressing the bushing 06 into the mounting post 53 of the swing arm 05, so that the bushing 06 and the swing arm 05 are fixedly connected.

As shown in fig. 1, the swing arm 05 mounting method may include steps S11 to S15, which will be described in detail below:

in step S11, as shown in fig. 4 and 6, the detecting assembly 03 may include a left detecting unit 31, and the left detecting unit 31 may include a left detecting seat 311, a sixth driving part 312, and a first left detecting head 313. The left detection seat 311 is detachably connected with the base 11. The left detecting seat 311 is provided with a sixth driving part 312 and a first left detecting head 313, and the sixth driving part 312 can drive the first left detecting head 313 to stretch and retract. The installation sleeve 52 of the swing arm 05 is aligned with the positioning column 12 of the positioning assembly 01, the installation sleeve 52 is sleeved on the positioning column 12, and the swing arm 05 can swing around the positioning column 12. The sensing device can be arranged on the base 11 near the positioning column 12, and the sensing device is used for judging whether the swing arm 05 is located at the pre-compression position (the pre-compression position is close to the compression position, and the position of the swing arm 05 is basically in place at the position), so that the detection assembly 03 and the clamping assembly 02 can be started to detect and adjust the position of the swing arm 05, and whether the swing arm 05 is located at the pre-compression position can be determined through visual inspection. If the swing arm 05 is not in the pre-press fit position, it must be manually adjusted to the pre-press fit position first. After determining that the swing arm 05 is located at the pre-press-fit position, the sixth driving portion 312 drives the first left detecting head 313 to extend to the first setting position. The first setting position is a length value set in advance, and it may be set differently according to different sizes and kinds of swing arms 05. The first setting position may be a length of the first left detecting head 313 extending when the swing arm 05 is placed on the positioning post 12 of the positioning assembly 01 and is set (i.e. the swing arm 05 is located at the pressing position of the base 11 of the positioning assembly 01). Thus, the swing arm 05 can be rapidly positioned, and the assembly efficiency of the swing arm 05 and the bushing 06 is improved.

In step S12, as shown in fig. 5 and 6, the first right clamping unit 22 may include a first right clamping seat 221, a third driving part 222, and a first right clamping head 223. The first right clamping seat 221 is detachably connected with the base 11, and a third driving part 222 and a first right clamping head 223 may be disposed on the first right clamping seat 221. The third driving part 222 may drive the first right grip 223 to expand and contract, thereby abutting one side of the swing arm 05. The second left clamp unit 23 of the clamp assembly 02 may include a second left clamp seat 231, a fourth driving part 232, and a second left clamp head 233. The second left clamping seat 231 is detachably connected with the base 11, and a fourth driving part 232 and a second left clamping head 233 can be arranged on the second left clamping seat 231. The fourth driving part 232 may drive the second left clamp head 233 to expand and contract, thereby abutting one side of the swing arm 05. When the first left detecting head 313 of the left detecting unit 31 extends to the first setting position, the third driving portion 222 of the first right clamping unit 22 drives the first right clamping head 223 to extend and abut against one side of the swing arm 05, and the second left clamping unit 23 drives the second left clamping head 233 to extend and abut against the second boss 55 of the swing arm 05 through the fourth driving portion 232. The swing arm 05 can then be rotated in a direction approaching the left detection unit 31 by adjusting the length of the first right grip head 223 and the length of the second left grip head 233 until the first boss 54 of the swing arm 05 abuts against the first left detection head 313 of the left detection unit 31.

In step S13, as shown in fig. 5 and 6, when the first boss 54 of the swing arm 05 abuts against the first left detection head 313 of the left detection unit 31, the first right gripping unit 22 drives the first right gripping head 223 to extend through the third driving part 222, and the second left gripping unit 23 drives the second left gripping head 233 to extend through the fourth driving part 232. Thereby causing the first right grip unit 22 and the second left grip unit 23 to simultaneously increase the abutment force, clamping the swing arm 05. During clamping, the left detecting unit 31 may continuously detect the position of the first boss 54, ensuring that the first boss 54 is located within the first range of the first set position. If the position of the first boss 54 exceeds the first range of the first set position, the position of the first boss 54 can be returned to the first range of the first set position by adjusting the abutment forces of the first right grip head 223 and the second left grip head 233. The first range of the first set position may be an empirical value obtained through long-term data statistical analysis. In this range, the correct installation angle of the bush 06 can be ensured, the installation is easy, the deformation and damage of the bush 06 and the swing arm 05 are reduced, and the parts for the related auxiliary installation are easy to be separated after the installation is completed. Thereby improving the efficiency and yield of the assembly of the bushing 06 and the swing arm 05.

In step S14, as shown in fig. 5 and 6, the angular positioning unit 13 is detachably connected to the base 11, and may include a first driving part 131, a positioning fork 132, and a sensor 133. The positioning fork 132 can be provided with two grooves, and the material of the positioning fork can have the characteristics of wear resistance, high hardness, difficult deformation and damage, and the like. The two grooves on the positioning fork 132 can be clamped with the two mounting lugs 62 of the bushing 06, and the positioning fork plays a role in positioning and guiding in the mounting process of the bushing 06. When the first boss 54 is located within the first range of the first setting position, the collar 61 of the bushing 06 is sleeved at one end of the mounting post 53 of the swing arm 05, and the mounting lug 62 of the bushing 06 is clamped into the groove of the angle positioning unit 13, so that the bushing 06 is positioned accurately. Therefore, the swing arm 05 can be positioned, and the bushing 06 can also be positioned, so that the assembly efficiency and yield of the bushing 06 and the swing arm 05 are improved.

In step S15, as shown in fig. 4, after the positioning of the swing arm 05 and the bushing 06 is completed, the pressing assembly 04 presses the bushing 06 to approach the swing arm 05. The pressing assembly 04 may include a pressing head 41, an eighth driving portion 42. The eighth driving portion 42 drives the bonding head 41 to descend or ascend. A sensor 133 may be provided at one side of the angle positioning unit 13, and when the pressing assembly 04 contacts the bushing 06 and starts to be pressed down, the sensor 133 receives a pressing down signal and transmits the signal to the first driving part 131, and the first driving part 131 drives the positioning fork 132 to move down together with the pressing head 41. Therefore, the bushing 06 can be positioned and guided, the abrasion of the mounting lugs 62 and the positioning forks 132 of the bushing 06 can be reduced, and the angular positioning unit 13 is prevented from being easily separated from the bushing 06 due to deformation of the mounting lugs 62 in the pressing process. Thereby improving the assembly efficiency and yield of the bushing 06 and the swing arm 05.

In some embodiments, as shown in fig. 3, 4 and 5, step S15 includes:

step S151, based on the pressing assembly 04 pressing the collar 61 to a length less than or equal to half of the total pressing length of the collar 61, the positioning fork 132 of the angular positioning unit 13 moves synchronously with the collar 61; wherein the mounting lug 62 is abutted with the positioning fork 132;

in step S152, based on the pressing assembly 04 pressing the collar 61 into the mounting post 53 by a length greater than half of the total pressing length of the collar 61, the moving speed of the positioning fork 132 is greater than the moving speed of the collar 61, and the moving direction of the positioning fork 132 is the same as the moving direction of the collar 61.

In the present embodiment, as shown in fig. 4 and 5, in step S151, as shown in fig. 4 and 5, in the process of starting to press the collar 61 from the pressing assembly 04, the distance from the movement of the collar 61 is half of the total pressing length of the collar 61, the first driving portion 131 drives the positioning fork 132 to move downward along the mounting post 53 of the swing arm 05 along with the collar 61. The movement speed of the positioning fork 132 is the same as the movement speed of the collar 61. And during this movement the mounting lugs 62 are always snapped into the recesses of the positioning fork 132 and move downwardly with the positioning fork 132. Thereby guiding the downward movement of the collar 61 and preventing the collar 61 from being deviated. Ensuring that the collar 61 is accurately mounted to the mounting post 53 of the swing arm 05.

In step S152, as shown in fig. 4 and 5, a length sensing device may be disposed on the pressing assembly 04, and may be used to send a signal to the first driving portion 131, so as to drive the positioning fork 132 to accelerate. When the pressing assembly 04 presses the collar 61 to extend into the mounting post 53 by a length greater than half of the total pressing length of the collar 61, the length sensing device on the pressing assembly 04 sends a signal to make the first driving part 131 drive the positioning fork 132 to accelerate, and the pressing head 41 continues to move at the original speed. The moving direction of the positioning fork 132 is the same as the moving direction of the collar 61 at this time, but the speed at which the positioning fork 132 moves is greater than the speed at which the collar 61 moves. Therefore, the collar 61 can be guided to be pressed down along the mounting post 53, the collar 61 is prevented from being deviated, and the distance that the mounting lug 62 moves in the groove of the positioning fork 132 is easy to separate from the bushing 06 when the swing arm 05 and the bushing 06 are taken out from the positioning post 12 and the angle positioning unit 13 after the assembly is completed. Thereby improving the assembly efficiency and yield.

In some embodiments, as shown in fig. 5 and 6, the movement speed of the positioning fork 132 is greater than the movement speed of the collar 61 in step S152, including that the collar 61 is pressed, at least a portion of the mounting lug 62 abuts against the positioning fork 132.

In this embodiment, as shown in fig. 5 and 6, in step S152, the first driving portion 131 drives the positioning fork 132 to move downward at a speed greater than the speed at which the pressing head 41 presses down the collar 61 from the time when the collar 61 is pressed down to the time when the collar 61 is pressed down (including the time when the collar 61 is pressed down). Therefore, the collar 61 can be guided to be pressed down along the mounting post 53, the collar 61 is prevented from being deviated, and the distance that the mounting lug 62 moves in the groove of the positioning fork 132 is easy to separate from the bushing 06 when the swing arm 05 and the bushing 06 are taken out from the positioning post 12 and the angle positioning unit 13 after the assembly is completed. Thereby improving the assembly efficiency and yield.

In some embodiments, as shown in fig. 5 and 6, step S15 further includes:

step S153, based on the movement speed of the positioning fork 132 being greater than the movement speed of the collar 61, obtaining a driving force for driving the movement of the positioning fork 132;

step S154, based on the driving force driving the positioning fork 132 to move being greater than the driving force threshold value, acquiring the history position data of the left detection unit 31 detecting the first boss 54;

in step S155, the magnitudes of the abutment forces of the first right grip unit 22 and the second left grip unit 23 are adjusted such that the current position data of the first boss 54 is changed in the opposite direction to the historical position data, based on the historical position data change of the first boss 54 being greater than the change threshold.

In the present embodiment, as shown in fig. 5 and 6, in step S153, when the moving speed of the positioning fork 132 is greater than the moving speed of the collar 61, a driving force for driving the positioning fork 132 to move may be obtained, so that it is determined whether the positioning fork 132 is easily detached from the bush 06 by the magnitude of the driving force. If the driving force is small, the positioning fork 132 is easy to separate from the bushing 06, so that the position and the angle of the bushing 06 mounted on the swing arm 05 are accurate; if the driving force is large, the positioning fork 132 is not easy to separate from the bushing 06, which means that the position and the angle of the bushing 06 mounted on the swing arm 05 are inaccurate, and adjustment is needed. The driving force is provided by the first driving portion 131 of the angle positioning unit 13. The first driving part 131 may include a cylinder driving or a motor driving. When using cylinder driving, the magnitude of the driving force can be obtained by monitoring the cylinder pressure; when motor driving is used, the magnitude of the driving force can be obtained by monitoring the driving current.

In step S154, when the driving force for driving the movement of the positioning fork 132 is greater than the driving force threshold, the history position data of the first boss 54 detected by the left detection unit 31 is acquired by the first left detection head 313. The driving force threshold is the maximum value of the acceptable driving force, and exceeding the threshold indicates that the mounting position and angle of the bushing 06 and the swing arm 05 are not satisfactory, and that the bushing is offset or inclined, and thus adjustment is required.

In step S155, the position data change threshold of the first boss 54 is a maximum value that allows the swing arm 05 to deflect, and when the swing arm 05 deflects beyond the maximum value, it is indicated that the swing arm 05 is positioned with a deviation, and the bushing 06 and the swing arm 05 will deform the parts during the assembly process, so that the position of the swing arm 05 needs to be adjusted. When the change of the historical position data of the first boss 54 is larger than the position data change threshold of the first boss 54, the current position data of the first boss 54 can be changed in the opposite direction of the historical position data by adjusting the magnitudes of the abutment forces of the first right clamping unit 22 and the second left clamping unit 23. As shown in fig. 5, if the history position data shows that the swing arm 05 swings to the left, it is possible to decrease the abutment force of the first right grip unit 22 or increase the abutment force of the second left grip unit 23, so that the swing arm 05 swings to the right, thereby returning the swing arm 05 to the correct position. If the history position data shows that the swing arm 05 is deflected to the right, the abutment force of the first right grip unit 22 may be increased or the abutment force of the second left grip unit 23 may be decreased, deflecting the swing arm 05 to the left, thereby returning the swing arm 05 to the correct position. The accuracy and yield of the assembly of the swing arm 05 and the bushing 06 are ensured.

In some embodiments, as shown in fig. 5 and 6, step S15 includes:

Step S156, based on the pressing assembly 04 pressing the collar 61 to a length less than or equal to half of the total pressing length of the collar 61, acquiring historical position data of the left detecting unit 31 detecting the first boss 54;

in step S157, the magnitudes of the abutment forces of the first right grip unit 22 and the second left grip unit 23 are adjusted such that the current position data of the first boss 54 is changed in the opposite direction to the historical position data, based on the historical position data change of the first boss 54 being greater than the change threshold.

In this embodiment, as shown in fig. 5 and 6, in step S156, when the length of the pressing collar 61 of the pressing assembly 04 extending into the mounting post 53 is less than or equal to half of the total pressing length of the collar 61, the historical position data of the first boss 54 may be obtained by the first left detection head 313. The position data can determine whether the position of the swing arm 05 is out of the range in which the bush 06 can be assembled. If the range is out, the position of the swing arm 05 needs to be adjusted. If the operation is within the range, the next operation can be directly performed.

In step S157, when the change of the historical position data of the first boss 54 is greater than the change threshold, which indicates that the swing arm 05 swings beyond the allowable range, the magnitudes of the abutment forces of the first right grip unit 22 and the second left grip unit 23 can be adjusted. Such that the current position data of the first boss 54 changes in the opposite direction to the historical position data. If the history position data shows that the swing arm 05 swings to the left, the abutment force of the first right grip unit 22 may be reduced or the abutment force of the second left grip unit 23 may be increased, so that the swing arm 05 swings to the right and returns to the correct position. If the history position data shows that the swing arm 05 is deflected to the right, the abutment force of the first right grip unit 22 may be increased or the abutment force of the second left grip unit 23 may be decreased, so that the swing arm 05 is deflected to the left, returning to the correct position. Thereby ensuring that the press-fit assembly 04 can smoothly press the collar 61 into the swing arm 05 at the designated position of the mounting post 53, and the angle positioning unit 13 can be easily disengaged from the bush 06.

In some embodiments, as shown in fig. 5 and 6, step S15 includes:

step S158, based on the pressing assembly 04 pressing the collar 61 to a length less than or equal to half of the total length of the collar 61 pressed, acquiring first historical position data of the first left detection head 313 of the left detection unit 31 detecting the first boss 54, and acquiring second historical position data of the second left detection head 314 of the left detection unit 31 detecting the first boss 54;

in step S159, the magnitudes of the abutment forces of the first right grip unit 22 and the second left grip unit 23 are adjusted such that the difference between the position data of the first boss 54 detected by the first left detection head 313 and the position data of the first boss 54 detected by the second left detection head 314 is reduced, based on the difference between the first historical position data and the second historical position data being greater than the difference threshold.

In the present embodiment, as shown in fig. 5 and 6, the left detection unit 31 may include a first left detection head 313 and a second left detection head 314 at step S158. The first and second left detection heads 313 and 314 may be located at one end abutting the first boss 54. When the length of the pressing collar 61 of the pressing assembly 04 extending into the mounting post 53 is less than or equal to half of the total pressing length of the collar 61, the first historical position data of the first left detecting head 313 of the left detecting unit 31 for detecting the first boss 54 is obtained, and the second historical position data of the second left detecting head 314 of the left detecting unit 31 for detecting the first boss 54 is obtained. By comparing the difference between the first historical position data and the second historical position data, whether the position of the swing arm 05 meets the requirement can be judged. If the position of the swing arm 05 is not satisfactory, an adjustment is required.

In step S159, when the difference threshold value of the first and second historical position data is the maximum allowable swing of the swing arm 05, the difference value of the historical position data of the first and second left detection heads 313 and 314 is set. When the difference is greater than the difference threshold between the first and second historical position data, the position of the swing arm 05 needs to be adjusted to be within the allowable range. The magnitude of the abutment force of the first right grip unit 22 and the second left grip unit 23 may be adjusted such that the difference between the position data of the first boss 54 detected by the first left detection head 313 and the position data of the first boss 54 detected by the second left detection head 314 is reduced to be less than or equal to the difference threshold value.

In some embodiments, as shown in fig. 3, step S15 further includes:

step S1510, based on the adjustment of the abutment force of the first right clamping unit 22 and the second left clamping unit 23, the pressing assembly 04 stops pressing the collar 61;

in step S1511, the pressing assembly 04 starts the pressing collar 61 based on the adjustment of the abutment forces of the first right clamping unit 22 and the second left clamping unit 23.

In the present embodiment, as shown in fig. 3, step S1510, the press-fit assembly 04 stops pressing the collar 61 when the magnitude of the abutment force of the first right grip unit 22 and the second left grip unit 23 is adjusted. Thereby avoiding that the pressing assembly 04 presses down the collar 61 to deform the bushing 06 or the swing arm 05 during the adjustment of the position of the swing arm 05, because the position of the swing arm 05 is not adjusted in place.

In step S1511, the magnitudes of the abutment forces of the first right grip unit 22 and the second left grip unit 23 are adjusted, while the left detection unit 31 detects the position of the first boss 54 of the swing arm 05 to be within the correct range. At this time, the swing arm 05 is accurate in position and can be pressed. The pressing assembly 04 is then started to press the collar 61 downwards until the collar 61 is located at the prescribed position on the mounting post 53 of the swing arm 05, and then pressing is stopped, and the pressing head 41 is lifted. Thereby ensuring the accurate position of the swing arm 05 and improving the yield of the installation of the bushing 06 and the swing arm 05.

In some embodiments, as shown in fig. 4, step S14 includes:

step S141, based on the first boss 54 being located within the first range of the first set position, extending the guide post 43 of the pressing assembly 04 into the central hole of the mounting post 53;

step S142, sleeving the collar 61 on the guide post 43, and arranging the mounting lug 62 in the positioning groove of the positioning fork 132 of the angle positioning unit 13;

in step S143, the collar 61 is fitted over one end of the mounting post 53 of the swing arm 05.

In the present embodiment, as shown in fig. 4, in step S141, a guide post 43 may be provided on the mounting post 53 of the swing arm 05 for guiding the bushing 06 to the press-fit position of the mounting post 53. The mounting post 53 may be provided in a hollow tubular structure, and the guide post 43 may be inserted into the mounting post 53. When the first boss 54 is located within the first range of the first setting position, which indicates that the position of the swing arm 05 is accurate, the guide post 43 of the pressing assembly 04 may extend into the central hole of the mounting post 53. Thereby enabling the bushing 06 to be positioned accurately and not easily offset.

In step S142, the collar 61 of the bushing 06 is sleeved on the guide post 43 of the swing arm 05, the mounting lug 62 of the bushing 06 is aligned with the positioning slot of the positioning fork 132, and then the bushing 06 is manually pressed down, so that the mounting lug 62 is clamped into the positioning slot of the positioning fork 132, and the bushing 06 and the swing arm 05 are rapidly positioned. The pressing head 41 of the pressing assembly 04 may be provided in a hollow structure, and the guide post 43 is located in the hollow structure of the pressing head 41 when the pressing head 41 presses down the collar 61, and the pressing head 41 is in contact with only the end surface of the collar 61. In the pressing process, the guide post 43 can limit the inclination of the bushing 06 to move downwards, so that the assembly yield of the bushing 06 and the swing arm 05 is improved.

In step S143, after the mounting lug 62 is engaged in the positioning groove of the positioning fork 132, the eighth driving portion 42 drives the pressing head 41 to press the collar 61 downward, and after the collar 61 is pressed into the predetermined position, the eighth driving portion 42 lifts the pressing head 41 to disengage from the bushing 06. Thereby completing the assembly of the bushing 06 and the swing arm 05.

In some embodiments, as shown in fig. 6, step S13 includes:

step S131, when the first boss 54 abuts against one end of the left detection unit 31, one end of the first left clamping unit 21 abuts against the other side of the swing arm 05;

In step S132, based on the one end of the first left clamping unit 21 abutting against the other side of the swing arm 05, the first right clamping unit 22, the first left clamping unit 21, and the second left clamping unit 23 increase the abutting force, and keep the first boss 54 within the first range of the first setting position.

In the present embodiment, as shown in fig. 6, in step S131, a first left clamping unit 21 may be provided on the base 11, and the first left clamping unit 21 may include: a first left clamping seat 211, a second driving part 212 and a first left clamping head 213. The first left clamping seat 211 is detachably connected with the base 11, and the first left clamping seat 211 may be provided with a second driving portion 212 and a first left clamping head 213. The second driving part 212 may drive the first left clamp head 213 to expand and contract, thereby abutting against the other side of the swing arm 05. When the first boss 54 abuts against one end of the left detection unit 31, the second driving portion 212 of the first left clamping unit 21 may drive the first left clamping head 213 to expand and contract, thereby abutting against the other side of the swing arm 05.

In step S132, after one end of the first left clamping unit 21 abuts against the other side of the swing arm 05, the abutting forces of the first right clamping unit 22, the first left clamping unit 21 and the second left clamping unit 23 are adjusted by the driving parts, so that the first right clamping unit 22, the first left clamping unit 21 and the second left clamping unit 23 jointly act to clamp the swing arm 05, and the swing arm 05 is clamped more tightly, thereby preventing the swing arm 05 from moving during the process of pressing the bushing 06 by the pressing head 41, and causing deformation of the bushing 06 or the swing arm 05. Meanwhile, the left detecting unit 31 detects the position of the first boss 54 so as to be located within the first range of the first set position. If the position of the first boss 54 exceeds the first range of the first set position, the left detecting unit 31 sends out a signal, and the first right clamping unit 22, the first left clamping unit 21 and the second left clamping unit 23 adjust their clamping forces so that the swing arm 05 returns to the first range of the first set position, thereby ensuring the accuracy of the position of the swing arm 05.

In another embodiment, as shown in fig. 6, in step S132, the clamping assembly 02 may further include: the second right clamping unit 24, the second right clamping unit 24 may include a second right clamping seat 241, a fifth driving part 242, and a second right clamping head 243. The second right clamping seat 241 is detachably connected to the base 11, and a fifth driving portion 242 and a second right clamping head 243 may be disposed on the second right clamping seat 241. The fifth driving part 242 may drive the second right grip 243 to expand and contract, thereby abutting one side of the swing arm 05. After one end of the first left clamping unit 21 abuts against the other side of the swing arm 05, the abutting forces of the first right clamping unit 22, the first left clamping unit 21, the second left clamping unit 23 and the second right clamping unit 24 are adjusted through the driving parts, so that the swing arm 05 is clamped tightly under the combined action of the first left clamping unit 21, the second left clamping unit 23 and the second right clamping unit 24, and the swing arm 05 is prevented from moving in the process of pressing the bushing 06 by the pressing head 41.

In some embodiments, as shown in fig. 4 and 6, the swing arm 05 mounting device includes:

the positioning assembly 01, the positioning assembly 01 comprises a base 11, a positioning column 12 and an angle positioning unit 13; the positioning column 12 is detachably connected with the base 11 and is used for positioning the mounting sleeve 52 of the swing arm 05; the angle positioning unit 13 is detachably connected with the base 11 and is used for positioning the mounting lug 62 of the bushing 06;

A detection assembly 03, the detection assembly 03 including a left detection unit 31; the left detection unit 31 is detachably connected with the base 11, and is used for acquiring position data of the first boss 54 of the swing arm 05;

a clamping assembly 02, the clamping assembly 02 comprising a first right clamping unit 22, a second left clamping unit 23; the first right clamping unit 22 is detachably connected with the base 11 and is used for clamping one side of the swing arm 05; the second left clamping unit 23 is detachably connected with the base 11 and is used for clamping the other side of the swing arm 05;

the pressing assembly 04, the pressing assembly 04 is detachably connected with the base 11, and is used for pressing the bushing 06 into the mounting post 53 of the swing arm 05.

In the present embodiment, as shown in fig. 4 and 6, the swing arm 05 mounting device may further include:

positioning assembly 01 the positioning assembly 01 may comprise a base 11, a positioning column 12, an angular positioning unit 13. The positioning column 12 is detachably connected with the base 11. The positioning column 12 may be provided as a hollow column structure, and the mounting sleeve 52 of the swing arm 05 is sleeved on the positioning column 12, so that the swing arm 05 is positioned in the horizontal direction. The angular positioning unit 13 is detachably connected with the base 11, and the angular positioning unit 13 may include a first driving part 131, a positioning fork 132, and a sensor 133. The first driving part 131 is used for driving the positioning fork 132 to move. Two grooves can be arranged on the positioning fork 132 and matched with the mounting lugs 62 of the bushing 06, and the mounting lugs 62 can be clamped into the grooves of the positioning fork 132, so that the bushing 06 is positioned. The sensor 133 may be provided at one side of the positioning fork 132 and may be used to control the driving part to drive the movement of the positioning fork 132.

Detection assembly 03 may include a left detection unit 31. The left detecting unit 31 is detachably connected with the base 11 and is used for acquiring position data of the first boss 54 of the swing arm 05. The left detection unit 31 may include a left detection seat 311, a sixth driving part 312, a first left detection head 313, and a second left detection head 314.

The clamping assembly 02, the clamping assembly 02 may include a first right clamping unit 22, a second left clamping unit 23. The first right clamping unit 22 is detachably connected to the base 11 for clamping one side of the swing arm 05. The second left clamping unit 23 is detachably connected to the base 11 for clamping the other side of the swing arm 05. When the first boss 54 is located at the left side of the swing arm 05, the first right clamping unit 22 and the second left clamping unit 23 work together to clamp the swing arm 05, preventing the swing arm 05 from moving during assembly.

The pressing component 04, the pressing component 04 may be disposed above the base 11, and detachable from the base 11, and may include: a pressing head 41, an eighth driving part 42 and a guide post 43. The pressing head 41 is detachably connected with the eighth driving portion 42, and the eighth driving portion 42 drives the pressing head 41 to move the pressing bush 06 downward. The guide post 43 may be disposed on the mounting post 53 of the swing arm 05, for guiding the bushing 06 to abut against the pressing position of the mounting post 53, so that the position of the bushing 06 does not deviate during the pressing process. Thereby ensuring the yield of the assembly of the bushing 06 and the swing arm 05.

In another embodiment, as shown in FIG. 6: the detecting assembly 03 may further include a right detecting unit 32, and the right detecting unit 32 may be detachably connected to the base 11 and may be disposed on an upper surface of the base 11. The right detection unit 32 may include a right detection seat 321, a seventh driving part 322, a first right detection head 323, and a second right detection head 324. When the first boss 54 is located on the right side surface of the swing arm 05, the right detection unit 32 determines whether the swing arm 05 is positioned accurately by detecting the position of the first boss 54.

In another embodiment, as shown in FIG. 6: the clamping assembly 02, the clamping assembly 02 may further include a first left clamping unit 21, a second right clamping unit 24. The first left clamping unit 21 is detachably connected to the base 11 for clamping the other side of the swing arm 05. The second right clamping unit 24 is detachably connected to the base 11 for clamping one side of the swing arm 05. When the first boss 54 is located on the right side of the swing arm 05, the first left clamp unit 21 and the second right clamp unit 24 work together to clamp the swing arm 05, preventing the swing arm 05 from moving during assembly.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of implementing the disclosure, and that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure.

Claims

1. A swing arm installation method, characterized in that the swing arm installation method comprises:

step S15, based on the fact that the pressing assembly presses the bushing to approach the swing arm, the angle positioning unit moves along the pressing direction;

The step S15 includes:

step S152, based on the fact that the pressing assembly presses the collar to extend into the mounting column by a length which is larger than half of the total pressing length of the collar, the moving speed of the positioning fork is larger than the moving speed of the collar, and the moving direction of the positioning fork is the same as the moving direction of the collar;

in the step S152, when the movement speed of the positioning fork is greater than the movement speed of the collar and the collar pressing is completed, at least the mounting ear portion is abutted against the positioning fork;

2. A swing arm mounting method according to claim 1, wherein,

the step S15 includes:

3. A swing arm mounting method according to claim 1, wherein,

the step S15 includes:

4. A swing arm mounting method according to any one of claims 1 to 3, wherein,

the step S15 further includes:

5. A swing arm mounting method according to claim 1, wherein,

the step S14 includes:

6. A swing arm mounting method according to claim 1, wherein,

the step S13 includes:

7. A swing arm mounting device applied to a swing arm mounting method according to any one of claims 1 to 6, characterized in that the swing arm mounting device comprises: