A method and system for installing a curved arm assembly

Abstract

The present invention relates to the technical field of vehicle bending arms, and in particular, to a bending arm assembly installation method and system. The bending arm assembly installation method comprises: step S10, based on the bending arm assembly being positioned and fixed on the positioning assembly, obtaining the distance between the first sleeve and the second sleeve of the bending arm assembly; step S20, based on the distance between the first sleeve and the second sleeve being greater than a standard threshold and less than a first set threshold, driving the pressing head of the pressing assembly to enter a first pre-installed state; step S30, based on the pressing head entering the first pre-installed state, driving the distance between the seat bodies of two adjacent limiting seats to decrease; step S40, based on the distance between the two adjacent seat bodies being reduced, the pressing head presses the bushing unit into the installation position of the bending arm assembly; this solves the problem of how to correct the bending arm assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle bending arms, and in particular to a bending arm assembly installation method and system. Background Art

[0002] The arm assembly, also known as the control arm or swing arm, is an important part of the automobile chassis system. The arm assembly connects the wheel to the body through the bushing, transmits various forces acting on the wheel to the body, and controls the wheel to move along a certain trajectory. During the driving process of the car, the control arm needs to withstand the braking force generated by the vehicle's lateral and rotational movement, maintain the stability of the chassis structure, and reduce the shaking during driving.

[0003] The two ends of the bending arm assembly are fixedly connected to the first sleeve and the second sleeve respectively, and the bushing units are installed in the first sleeve and the second sleeve, and the bushing units are installed in the first sleeve and the second sleeve in an interference fit manner. In order to improve the press-fitting efficiency, the bushing units can be press-fitted to the first sleeve and the second sleeve at the same time. During the press-fitting process, after the bending arm assembly is fixed by the positioning assembly, two pressing assemblies facing each other are used to press-fit the bushing units of the first sleeve and the second sleeve at the same time along the axial direction of the first sleeve and the second sleeve, thereby completing the installation of the bending arm assembly. In the actual production process, the distance between the first sleeve and the second sleeve may be outside the set range. Therefore, when press-fitting the bushing unit, it is necessary to correct the distance between the first sleeve and the second sleeve to improve the product qualification rate. Summary of the invention

[0004] In order to solve the problem of how to correct the bent arm assembly, the present invention provides a bent arm assembly installation method and system.

[0005] In a first aspect, the present invention provides a method for installing a curved arm assembly, comprising:

[0006] Step S10, based on the bending arm assembly being positioned and fixed on the positioning assembly, obtaining the distance between the first sleeve and the second sleeve of the bending arm assembly; wherein, when the bending arm assembly is positioned and fixed, one side of the arm body of the bending arm assembly abuts against the second positioning unit of the positioning assembly, the side of the first sleeve away from the arm body abuts against one end of a support seat of a first positioning unit of the positioning assembly, the side of the second sleeve away from the arm body abuts against one end of a support seat of another first positioning unit of the positioning assembly, the end of the first sleeve close to the second sleeve abuts against a limiting seat of one of the first positioning units, and the end of the second sleeve close to the first sleeve abuts against a limiting seat of another first positioning unit;

[0007] Step S20, based on the fact that the distance between the first sleeve and the second sleeve is greater than the standard threshold and less than the first set threshold, driving the pressing head of the pressing assembly to enter a first pre-installed state; wherein the first pre-installed state includes sleeved a bushing unit on a positioning column of the pressing assembly, the bushing unit moves toward the direction approaching the first sleeve, and an end of the bushing unit away from the pressing head abuts against an end of the first sleeve; and / or the bushing unit moves toward the direction approaching the second sleeve, and an end of the bushing unit away from the pressing head abuts against an end of the second sleeve;

[0008] Step S30, based on the pressure head entering the first pre-installed state, driving the distance between the seat bodies of two adjacent limiting seats to decrease;

[0009] In step S40, based on the reduction in the spacing between two adjacent seat bodies, the pressing head presses the bushing unit into the installation position of the bending arm assembly; wherein, the installation position includes the outer circumferential walls of the two bushing units respectively abutting against the inner circumferential walls of the first sleeve and the second sleeve, the spacing between two adjacent bushing units is within the installation spacing range, the end of the first sleeve away from the pressing head abuts against one side of one seat body, and the end of the second sleeve away from the pressing head abuts against one side of the other seat body.

[0010] In some embodiments, step S30 includes:

[0011] Step S31, based on the pressure head, the bushing unit is moved to the first pre-installed state, and a first spacing of the first sleeve and a second spacing of the second sleeve are obtained; wherein the first spacing includes a minimum distance between the first sleeve and a symmetric center plane of the positioning assembly; and the second spacing includes a minimum distance between the second sleeve and a symmetric center plane of the positioning assembly;

[0012] Step S32, based on the first spacing being less than or equal to the second spacing, driving the pressing head adjacent to the first sleeve to enter a second pre-installed state, and the seat body of the limit seat adjacent to the second sleeve moves toward the first sleeve to a first set position; wherein the second pre-installed state includes a portion of the outer circumferential wall of the bushing unit abutting against a portion of the inner circumferential wall of the first sleeve, and the seat body adjacent to the first sleeve abutting against an end of the first sleeve away from the pressing head;

[0013] Step S33, based on the pressing head entering the second pre-installed state and the seat body adjacent to the second sleeve moving toward the direction close to the first sleeve to the first set position, the pressing head and the seat body clamping the first sleeve move toward the direction away from the second sleeve to the second set position; wherein the second set position includes the seat body adjacent to the second sleeve abutting against an end of the second sleeve away from the pressing head;

[0014] Step S34, based on the pressing head and the seat body clamping the first sleeve moving in a direction away from the second sleeve to the second set position, driving the pressing head adjacent to the second sleeve to enter the second pre-installed state; wherein the second pre-installed state also includes a portion of the outer peripheral wall of the bushing unit abutting against a portion of the inner peripheral wall of the second sleeve;

[0015] Step S35, based on the pressing head adjacent to the second sleeve entering the second pre-installed state, driving the distance between two adjacent seat bodies to decrease.

[0016] In some embodiments, driving the distance between two adjacent seats to decrease in step S35 includes the two adjacent seats simultaneously moving toward each other by a first set distance.

[0017] In some embodiments, A≥B / 2; wherein A is the first set distance, and B is the difference between the spacing between the first sleeve and the second sleeve and the standard threshold.

[0018] In some embodiments, the bending arm assembly installation method further includes:

[0019] Step S21, based on the fact that the distance between the first sleeve and the second sleeve is smaller than the standard threshold and larger than a second set threshold, driving the two adjacent seats to move simultaneously in a direction away from the adjacent seats by a second set distance;

[0020] Step S22, based on the two adjacent base bodies simultaneously moving the second set distance in a direction away from the adjacent base bodies, driving the pressing head of the pressing assembly to enter the first pre-installed state;

[0021] Step S23, based on the pressing head moving the bushing unit to the first pre-installed state, the pressing head presses the bushing unit into the installation position of the bending arm assembly.

[0022] In some embodiments, C≥D / 2; wherein C is the second set distance, and D is the difference between the spacing between the first sleeve and the second sleeve and the standard threshold.

[0023] In some embodiments, step S21 includes:

[0024] Step S211, based on the fact that the distance between the first sleeve and the second sleeve is smaller than the standard threshold and larger than a second set threshold, driving the second positioning unit of the positioning assembly to drive the bending arm assembly to move a third set distance in a direction away from the seat body;

[0025] Step S212: Based on the second positioning unit driving the arm assembly to move the third set distance in the direction away from the seat, the two adjacent seats are driven to move the second set distance in the direction away from the adjacent seats at the same time.

[0026] In some embodiments, the third set distance in step S211 includes one end of the two seat bodies respectively abutting against one end of the second area of ​​the first sleeve and one end of the second area of ​​the second sleeve; wherein the first sleeve and / or the second sleeve include a first area and a second area; the first area is arranged on a side of the first sleeve and / or the second sleeve close to the arm body of the bending arm assembly; the second area is arranged on a side of the first sleeve and / or the second sleeve away from the arm body of the bending arm assembly.

[0027] In a second aspect, the present invention provides a bending arm assembly installation system, the bending arm assembly installation system is applied to a bending arm assembly installation method of any embodiment of the first aspect, the bending arm assembly installation system comprising:

[0028] Base assembly;

[0029] A positioning assembly, wherein the positioning assembly comprises a first positioning unit and a second positioning unit; the first positioning unit comprises a sliding seat, a supporting seat, a limiting seat, and a first driving part; the sliding seat is drivingly connected to the first driving part; one side of the sliding seat is slidably connected to the base assembly; one end of the supporting seat is detachably connected to a side of the sliding seat away from the base assembly; the end of the supporting seat away from the sliding seat is recessed toward the other end to form a groove; the limiting seat comprises a seat body, one end of the seat body is detachably connected to a side of the sliding seat away from the base assembly; the seat body is arranged adjacent to one side of the supporting seat; one end of the second positioning unit is detachably connected to the base assembly; two first positioning units are symmetrically arranged on both sides of the second positioning unit;

[0030] A pressing assembly, the pressing assembly comprising a pressing seat, a pressing head, a positioning column, and a second driving part; the second driving part is detachably connected to a side of the sliding seat away from the machine base assembly; one end of the pressing seat is detachably connected to one end of the second driving part, and the other end is detachably connected to one end of the pressing head; one end of the positioning column is embedded in the center position of one end of the pressing head away from the pressing seat, and the other end extends toward the direction close to the support seat; the pressing assembly and the support seat are spaced apart on the sliding seat along the same axis;

[0031] A bending arm assembly, the bending arm assembly comprising an arm body, a first sleeve, a second sleeve, and a bushing unit; one end of the arm body is fixedly connected to a portion of the outer peripheral wall of the first sleeve, and the other end is fixedly connected to a portion of the outer peripheral wall of the second sleeve; the first sleeve and the second sleeve are spaced apart on the same central axis;

[0032] When the bent arm assembly is positioned and fixed, one side of the arm body abuts against the second positioning unit, the side of the first sleeve away from the arm body abuts against one end of a support seat of a first positioning unit of the positioning assembly, the side of the second sleeve away from the arm body abuts against one end of a support seat of another first positioning unit of the positioning assembly, the end of the first sleeve close to the second sleeve abuts against one of the limiting seats, and the end of the second sleeve close to the first sleeve abuts against the other limiting seat;

[0033] The bending arm assembly installation system also includes a first pre-installed state and an installation position; the first pre-installed state includes sleeved on the positioning column of the pressing assembly, the bushing unit moves along the central axis of the first sleeve toward the direction close to the first sleeve, and the end of the bushing unit away from the pressure head abuts against one end of the first sleeve; or, the bushing unit moves along the central axis of the second sleeve toward the direction close to the second sleeve, and the end of the bushing unit away from the pressure head abuts against one end of the second sleeve; the installation position includes the outer circumferential walls of the two bushing units abutting against the inner circumferential walls of the first sleeve and the second sleeve respectively, the spacing between the two adjacent bushing units is within the installation spacing range, the end of the first sleeve away from the pressure head abuts against one side of one of the seat bodies, and the end of the second sleeve away from the pressure head abuts against one side of the other seat body.

[0034] In some embodiments, the limit seat also includes a slider and an elastic part; the slider is embedded in the side of the seat body close to the support seat; the outer peripheral wall of the slider is slidably connected to the inner wall of the seat body; one end of the elastic part is detachably connected to the seat body, and the other end is detachably connected to one end of the slider; the installation position also includes an end of the bushing unit away from the pressure head abutting against an end of the slider away from the elastic part.

[0035] In order to solve the problem of how to correct the bending arm assembly, the present invention has the following advantages:

[0036] After the bending arm assembly is positioned by the positioning assembly, when the distance between the first sleeve and the second sleeve is greater than the standard threshold and less than the first set threshold, the pressure head of the pressing assembly can be driven to enter the first pre-installed state, so that the bushing unit abuts against the first sleeve and the second sleeve respectively, and the first sleeve and the second sleeve are prevented from swinging. Then the two limit seats can be driven by the sliding seat to move the set distance to reduce the distance between the two limit seats. The setting of the two limit seats can limit the minimum distance between the first sleeve and the second sleeve, and avoid excessive correction of the spacing between the first sleeve and the second sleeve. After the installation process starts, the position of the limit seat does not move, and the pressing assembly drives the two bushing units to be pressed into the first sleeve and the second sleeve respectively in an interference fit manner; at the same time, the pressing assembly can drive the first sleeve and the bushing unit abutting the first sleeve to move toward the direction of the adjacent limit seat until they abut against the limit seat, and drive the second sleeve and the bushing unit abutting the second sleeve to move toward the direction of the adjacent limit seat until they abut against the limit seat, thereby realizing the correction of the spacing between the first sleeve and the second sleeve. Therefore, when the bushing unit is pressed into the first sleeve and the second sleeve, the distance between the first sleeve and the second sleeve can be corrected, thereby improving production efficiency and improving product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A flow chart of a method for installing a curved arm assembly according to an embodiment is shown;

[0038] Figure 2 A schematic diagram of a bending arm assembly installation system according to an embodiment is shown;

[0039] Figure 3 A partial schematic diagram of a bending arm assembly mounting system according to an embodiment is shown;

[0040] Figure 4 A schematic diagram of a bushing unit according to an embodiment is shown;

[0041] Figure 5 A schematic diagram of a bushing unit in another embodiment is shown;

[0042] Figure 6 A partial schematic diagram of a curved arm assembly according to an embodiment is shown;

[0043] Figure 7 A schematic diagram of a bending arm assembly according to an embodiment is shown;

[0044] Figure 8 A partial schematic diagram of a bending arm assembly mounting system according to another embodiment is shown;

[0045] Fig. 9 A partial schematic diagram of a bending arm assembly mounting system according to another embodiment is shown.

[0046] Figure markings: 01 bending arm assembly; 11 arm body; 12 first sleeve; 13 second sleeve; 14 bushing unit; 141 center sleeve; 142 connecting part; 143 outer sleeve; 02 base assembly; 03 positioning assembly; 31 first positioning unit; 311 sliding seat; 312 supporting seat; 313 limiting seat; 3131 seat body; 3132 slider; 3133 elastic part; 314 first driving part; 32 second positioning unit; 04 pressing assembly; 41 pressing seat; 42 pressing head; 43 positioning column; 44 second driving part. DETAILED DESCRIPTION

[0047] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0048] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". 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 orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0049] In this embodiment, the bushing unit 14 can be installed in the first sleeve 12 and the second sleeve 13 by interference fit. Under standard conditions, the spacing between the first sleeve 12 and the second sleeve 13 is within the standard threshold range, and the standard threshold can include the upper limit and lower limit of the spacing between the first sleeve 12 and the second sleeve 13. When the spacing between the first sleeve 12 and the second sleeve 13 is within the standard threshold range, it can be said that the bending arm assembly 01 is a standard part and does not need to be corrected. After the bending arm assembly 01 is positioned and fixed by the positioning assembly 03, the bushing unit 14 can be pressed into the first sleeve 12 and the second sleeve 13 respectively by the pressing assembly 04; when the spacing between the first sleeve 12 and the second sleeve 13 is outside the range of the standard threshold, it needs to be corrected. In order to improve production efficiency in actual production, the bushing unit 14 is pressed and the spacing between the first sleeve 12 and the second sleeve 13 is corrected at the same time. Therefore, a method and system for installing a bending arm assembly 01 are proposed.

[0050] Among them, Figure 2 As shown, the installation system of the bending arm assembly 01 may include: a base assembly 02, a positioning assembly 03, a pressing assembly 04, and a bending arm assembly 01. The base assembly 02 may be a fixed bracket, which is convenient for providing a positioning and support position for the positioning assembly 03, the pressing assembly 04, and the bending arm assembly 01. The bending arm assembly 01 may be a component to be installed, such as Figure 6 , Figure 7 As shown, the arm assembly 01 may include an arm body 11, a first sleeve 12, a second sleeve 13, and a bushing unit 14. Figure 6 As shown, one end of the arm body 11 can be fixedly connected to a portion of the outer peripheral wall of the first sleeve 12, and the other end can be fixedly connected to a portion of the outer peripheral wall of the second sleeve 13. The first sleeve 12 and the second sleeve 13 can be spaced apart on the same central axis. The first sleeve 12 and the second sleeve 13 can be hollow cylindrical to accommodate the bushing unit 14. Figure 4 , Figure 5 As shown, the bushing unit 14 may include a center sleeve 141, a connecting portion 142, and an outer sleeve 143. The outer circumference of the outer sleeve 143 may match the inner diameter of the first sleeve 12 and the second sleeve 13, so that the bushing unit 14 may be installed in the first sleeve 12 and the second sleeve 13 in an interference fit manner. The axial direction of the center sleeve 141 may be a through hole of a set size. The connecting portion 142 may connect the center sleeve 141 and the outer sleeve 143.

[0051] like Figure 3 , Fig. 9As shown, the positioning assembly 03 may include a first positioning unit 31 and a second positioning unit 32. The first positioning unit 31 may include a sliding seat 311, a support seat 312, a limit seat 313, and a first driving part 314. The sliding seat 311 may be drivingly connected to the first driving part 314. One side of the sliding seat 311 may be slidably connected to the base assembly 02. The first driving part 314 may drive the sliding seat 311 to slide back and forth along the base assembly 02. The other side of the sliding seat 311 may be detachably connected to the support seat 312 and the limit seat 313, so that the support seat 312 and the limit seat 313 may move with the sliding seat 311. One end of the support seat 312 may be detachably connected to a side of the sliding seat 311 away from the base assembly 02. The end of the support seat 312 away from the sliding seat 311 may be recessed toward the end close to the sliding seat 311 to form a groove, and the groove of the support seat 312 may be used to support the first sleeve 12 or the second sleeve 13 of the bending arm assembly 01. The limiting seat 313 may include a seat body 3131, one end of which may be detachably connected to a side of the sliding seat 311 away from the base assembly 02. The seat body 3131 may be disposed adjacent to a side of the support seat 312 away from the pressing assembly 04. One end of the second positioning unit 32 may be detachably connected to the base assembly 02, and the other end may be kept in contact with one side of the bending arm assembly 01, so as to facilitate keeping the bending arm assembly 01 from tilting in the vertical direction during the installation process. The bottoms of the first sleeve 12 and the second sleeve 13 may be in contact with the groove of the support seat 312. The middle portion of the arm body 11 of the bending arm assembly 01 may be rotatably connected to the second positioning unit 32. The two first positioning units 31 may be symmetrically disposed on both sides of the second positioning unit 32, and may be used to position the first sleeve 12 and the second sleeve 13 of the bending arm assembly 01, respectively. The positioning of the bending arm assembly 01 may be achieved by the cooperation of the first positioning unit 31 and the second positioning unit 32.

[0052] like Figure 3 , Figure 8As shown, the pressing assembly 04 may include a pressing seat 41, a pressing head 42, a positioning column 43, and a second driving portion 44. The second driving portion 44 may be detachably connected to a side of the sliding seat 311 away from the machine base assembly 02. One end of the pressing seat 41 may be detachably connected to one end of the second driving portion 44, and the other end may be detachably connected to one end of the pressing head 42. The second driving portion 44 may drive the pressing head 42 to move forward or backward in the direction of the support seat 312 and the limit seat 313. One end of the positioning column 43 may be embedded in the center position of one end of the pressing head 42 away from the pressing seat 41, and the other end of the positioning column 43 may extend in a direction close to the support seat 312. The diameter of the positioning column 43 may match the size of the through hole of the center sleeve 141, so that the positioning column 43 can extend into the through hole of the center sleeve 141, so that the bushing unit 14 can move with the pressing head 42. The pressing assembly 04 and the supporting seat 312 can be arranged on the sliding seat 311 along the same axis and at intervals, and the pressing assembly 04 can move toward or away from the supporting seat 312 .

[0053] like Figure 1 As shown, the installation method of the bending arm assembly 01 may include: step S10, based on the bending arm assembly 01 being positioned and fixed on the positioning assembly 03, the spacing between the first sleeve 12 and the second sleeve 13 of the bending arm assembly 01 can be obtained, so as to facilitate the judgment of whether the spacing between the first sleeve 12 and the second sleeve 13 is larger or smaller than the standard threshold, so as to correct the spacing between the first sleeve 12 and the second sleeve 13. Figure 3 As shown, when the bending arm assembly 01 is positioned and fixed, one side of the arm body 11 can be kept in contact with the second positioning unit 32, the side of the first sleeve 12 away from the arm body 11 can be in contact with the groove of the support seat 312 of one first positioning unit 31 of the positioning assembly 03, and the side of the second sleeve 13 away from the arm body 11 can be in contact with the groove of the support seat 312 of another first positioning unit 31 of the positioning assembly 03. The support seat 312 can limit the height of the first sleeve 12 and the second sleeve 13. The end of the first sleeve 12 close to the second sleeve 13 can be in contact with a limit seat 313, and the end of the second sleeve 13 close to the first sleeve 12 can be in contact with another limit seat 313. The two limit seats 313 can limit the spacing between the first sleeve 12 and the second sleeve 13.

[0054] Step S20, based on the fact that the distance between the first sleeve 12 and the second sleeve 13 is greater than the standard threshold (i.e., the upper limit of the standard value) and less than the first set threshold, the pressure head 42 of the pressing assembly 04 can be driven to enter the first pre-installed state. The standard threshold may include the upper limit and lower limit of the standard value of the distance between the first sleeve 12 and the second sleeve 13 of the bending arm assembly 01, and the first set threshold is the maximum value of the distance between the first sleeve 12 and the second sleeve 13 of the bending arm assembly 01 that can be corrected. When the distance between the first sleeve 12 and the second sleeve 13 is greater than the standard threshold and less than the first set threshold, it means that the distance between the first sleeve 12 and the second sleeve 13 is greater than the upper limit of the error of the standard value, but can be corrected to become a standard part. The first pre-installed state may include sleeve-mounting the bushing unit 14 on the positioning column 43 of the press-fit assembly 04, the bushing unit 14 moving toward the direction close to the first sleeve 12, and the end of the bushing unit 14 away from the pressure head 42 abutting against the end of the first sleeve 12; and / or, the bushing unit 14 moving toward the direction close to the second sleeve 13, and the end of the bushing unit 14 away from the pressure head 42 abutting against the end of the second sleeve 13. In the first pre-installed state, the first sleeve 12 and the second sleeve 13 can be clamped by two bushing units 14, so as to avoid the first sleeve 12 and the second sleeve 13 from being unstable in positioning after the two limit seats 313 move.

[0055] Step S30, based on the pressure head 42 entering the first pre-installed state, driving the distance between the seat bodies 3131 of two adjacent limit seats 313 to be reduced to a set distance. By reducing the distance between the two limit seats 313 to the set distance, it is possible to avoid excessive correction of the distance between the first sleeve 12 and the second sleeve 13.

[0056] Step S40, based on the reduced spacing between two adjacent seat bodies 3131, the press head 42 can press the bushing unit 14 into the installation position of the bent arm assembly 01. The installation position includes the outer circumferential walls of the two bushing units 14 abutting against the inner circumferential walls of the first sleeve 12 and the second sleeve 13, respectively, the spacing between the two adjacent bushing units 14 is within the installation spacing range, the end of the first sleeve 12 away from the press head 42 abuts against one side of one seat body 3131, and the end of the second sleeve 13 away from the press head 42 abuts against one side of the other seat body 3131. The pressing head 42 presses the bushing unit 14 into the installation position of the bending arm assembly 01, which may include two processes. First, the pressing head 42 moves toward the direction close to the limit seat 313, driving the two bushing units 14 to be pressed into the first sleeve 12 and the second sleeve 13 respectively; second, the pressing head 42 continues to move toward the direction close to the limit seat 313 until the first sleeve 12 abuts against the seat body 3131 of the adjacent limit seat 313, and the second sleeve 13 abuts against the seat body 3131 of the adjacent limit seat 313. At this time, the distance between the first sleeve 12 and the second sleeve 13 is the same as the distance between the two sides of the two limit seats 313 away from each other. By setting the limit seat 313, excessive correction of the bending arm assembly 01 is avoided, the controllability of correcting the distance between the first sleeve 12 and the second sleeve 13 of the bending arm assembly 01 is improved, and the production efficiency is improved.

[0057] In other embodiments, in step S30, after the distance between the seat bodies 3131 of the two limit seats 313 is reduced, the value of the distance between the two side surfaces of the two limit seats 313 away from each other can be within the standard threshold range, so that the value of the distance between the first sleeve 12 and the second sleeve 13 that are respectively abutted against the two side surfaces of the two limit seats 313 away from each other after correction can be between the upper and lower limits of the standard value.

[0058] In this embodiment, step S30 may include:

[0059] Step S31, based on the pressure head 42, the bushing unit 14 is moved to the first pre-installed state, and the first spacing of the first sleeve 12 and the second spacing of the second sleeve 13 can be obtained. The first spacing may include the minimum distance between the first sleeve 12 and the symmetric center plane of the positioning component 03. The second spacing may include the minimum distance between the second sleeve 13 and the symmetric center plane of the positioning component 03. The symmetric center plane may be the center plane of the symmetrical distribution of the two first positioning units 31.

[0060] Step S32, based on the fact that the first spacing is less than or equal to the second spacing, that is, the position of the second sleeve 13 deviates from the standard value by a large amount, which may cause the central axis of the second sleeve 13 to deviate by a large amount, which is not conducive to pressing the bushing unit 14 into the second sleeve 13. The pressure head 42 adjacent to the first sleeve 12 can be driven to enter the second pre-installed state, and the seat body 3131 of the limit seat 313 adjacent to the second sleeve 13 moves to the first set position in the direction close to the first sleeve 12. Under the standard state, the first spacing can be equal to the second spacing. Among them, the second pre-installed state includes that part of the outer peripheral wall of the bushing unit 14 abuts against part of the inner peripheral wall of the first sleeve 12, and the seat body 3131 adjacent to the first sleeve 12 abuts against one end of the first sleeve 12 away from the pressure head 42. That is, in the second pre-installed state, the pressure head 42 drives the bushing unit 14 corresponding to the first sleeve 12 to be partially pressed into the first sleeve 12 first, so as to limit the relative determination of the positions of the bushing unit 14 and the first sleeve 12.

[0061] Step S33, based on the ram 42 entering the second pre-installed state and the seat 3131 adjacent to the second sleeve 13 moving to the first set position in the direction close to the first sleeve 12, the ram 42 and the seat 3131 clamping the first sleeve 12 move to the second set position in the direction away from the second sleeve 13. Among them, the second set position includes the seat 3131 adjacent to the second sleeve 13 abutting against one end of the second sleeve 13 away from the ram 42. The bent arm assembly 01 and the second positioning unit 32 can be rotatably connected. When the ram 42 and the seat 3131 clamping the first sleeve 12 move in the direction away from the second sleeve 13, the second sleeve 13 moves in the direction close to the adjacent limit seat 313, so that the angle between the central axis of the second sleeve 13 and the horizontal plane becomes smaller, which is convenient for pressing the bushing unit 14 into the second sleeve 13. The first set position and the second set position can be symmetrically distributed about the symmetric center plane of the two first positioning units 31.

[0062] Step S34, based on the ram 42 and the seat 3131 clamping the first sleeve 12 moving to the second set position in the direction away from the second sleeve 13, the ram 42 adjacent to the second sleeve 13 is driven to enter the second pre-installed state. The second pre-installed state also includes a portion of the outer circumferential wall of the bushing unit 14 abutting against a portion of the inner circumferential wall of the second sleeve 13. When the seat 3131 adjacent to the second sleeve 13 moves, the position of the second sleeve 13 can be limited by the bushing unit 14 to prevent the bending arm assembly 01 from shaking, so that the position of the bushing unit 14 and the second sleeve 13 can be kept relatively fixed.

[0063] Step S35, based on the pressure head 42 adjacent to the second sleeve 13 entering the second pre-installed state, the spacing between the two adjacent seat bodies 3131 can be driven to decrease. It is convenient to limit the minimum distance between the first sleeve 12 and the second sleeve 13 during the subsequent installation of the bending arm assembly 01 to avoid excessive correction. Since the first spacing is smaller than the second spacing in the first pre-installed state, the axis of the second sleeve 13 may deviate from the horizontal plane more, which is not conducive to press-fitting the bushing unit 14 into the second sleeve 13. Therefore, the local pressing of the bushing unit 14 into the first sleeve 12 with a smaller axis deviation can be firstly performed, and the first sleeve 12 is moved in a direction away from the second sleeve 13, so as to drive the deviation angle of the axis of the second sleeve 13 from the horizontal plane to become smaller, thereby facilitating the local pressing of the bushing unit 14 into the second sleeve 13. Subsequently, the bushing unit 14 of the first sleeve 12 and the bushing unit 14 of the second sleeve 13 are further pressed, so that the spacing between the two bushing units 14 is within the set range. The center of the arm body 11 of the bending arm assembly 01 is rotatably connected to the second positioning unit 32, so that when the first sleeve 12 is driven to move away from the second sleeve 13, the deviation angle between the axis of the second sleeve 13 and the horizontal plane will become smaller.

[0064] In this embodiment, driving the distance between two adjacent seats 3131 to decrease in step S35 may include moving the two adjacent seats 3131 toward each other by a first set distance at the same time. The two seats 3131 moving the same distance can avoid excessive deviation of one side.

[0065] In this embodiment, A≥B / 2. Among them, A can be the first set distance, and B can be the difference between the spacing between the first sleeve 12 and the second sleeve 13 and the standard threshold. Within the allowable range, the first set distance can be slightly larger than half of the difference between the spacing between the first sleeve 12 and the second sleeve 13 and the standard threshold. The bending arm assembly 01 has a certain elasticity, and rebound may occur during the correction of the spacing between the first sleeve 12 and the second sleeve 13. By A≥B / 2, a slightly larger gap is reserved between the first sleeve 12 and the adjacent seat body 3131, and between the second sleeve 13 and the adjacent seat body 3131, so that the movement range of the first sleeve 12 and the second sleeve 13 is larger when the bushing unit 14 is pressed, so that the spacing between the first sleeve 12 and the second sleeve 13 after correction is more accurate.

[0066] In this embodiment, the installation method of the bent arm assembly 01 further includes:

[0067] Step S21, based on the fact that the distance between the first sleeve 12 and the second sleeve 13 is less than the lower limit of the standard value and greater than the second set threshold, the two adjacent seats 3131 can be driven to move the second set distance away from the adjacent seats 3131 at the same time, so as to correct the distance between the first sleeve 12 and the second sleeve 13. The second set threshold is the minimum value of the distance between the first sleeve 12 and the second sleeve 13 of the curved arm assembly 01 that can be corrected.

[0068] Step S22, based on the two adjacent seat bodies 3131 moving the second set distance in the direction away from the adjacent seat bodies 3131 at the same time, the pressing head 42 of the pressing assembly 04 can be driven to enter the first pre-installed state. The first pre-installed state can include sleeves of the bushing unit 14 on the positioning column 43 of the pressing assembly 04, the bushing unit 14 moving in the direction close to the first sleeve 12, and the end of the bushing unit 14 away from the pressing head 42 abutting against one end of the first sleeve 12; and / or, the bushing unit 14 moving in the direction close to the second sleeve 13, and the end of the bushing unit 14 away from the pressing head 42 abutting against one end of the second sleeve 13. In the first pre-installed state, the first sleeve 12 and the second sleeve 13 can be clamped by two bushing units 14, so as to avoid unstable positioning of the first sleeve 12 and the second sleeve 13 after the two limit seats 313 move.

[0069] Step S23 , based on the pressing head 42 moving the bushing unit 14 to the first pre-installed state, the pressing head 42 can press the bushing unit 14 into the installation position of the bending arm assembly 01 , thereby completing the installation of the bending arm assembly 01 .

[0070] In this embodiment, C≥D / 2. Among them, C is the second set distance, and D is the difference between the spacing between the first sleeve 12 and the second sleeve 13 and the standard threshold. Within the allowable range, the second set distance can be slightly larger than half of the difference between the spacing between the first sleeve 12 and the second sleeve 13 and the standard threshold. The bending arm assembly 01 has a certain elasticity, and rebound may occur during the spacing correction process of the first sleeve 12 and the second sleeve 13. By C≥D / 2, the movement amplitude of the first sleeve 12 and the second sleeve 13 is larger when the bushing unit 14 is pressed, so that the spacing between the first sleeve 12 and the second sleeve 13 after correction is more accurate.

[0071] In this embodiment, step S21 includes:

[0072] Step S211, based on the distance between the first sleeve 12 and the second sleeve 13 being smaller than the standard threshold and larger than the second set threshold, the second positioning unit 32 of the positioning assembly 03 can be driven to drive the bending arm assembly 01 to move a third set distance away from the seat body 3131.

[0073] Step S212, based on the second positioning unit 32 driving the bending arm assembly 01 to move the third set distance in the direction away from the seat body 3131, the two adjacent seat bodies 3131 are driven to move the second set distance in the direction away from the adjacent seat bodies 3131 at the same time. In the process of correcting the spacing between the first sleeve 12 and the second sleeve 13, the bending arm assembly 01 is driven by the second positioning assembly 03 to move in the direction away from the seat body 3131, so that the seat body 3131 of the limit seat 313 abuts against the side of the first sleeve 12 away from the arm body 11 and the side of the second sleeve 13 away from the arm body 11, the force arm is larger, the correction is easier, and the correction effect and accuracy are improved.

[0074] In this embodiment, the third set distance in step S211 may include one end of the two seat bodies 3131 abutting against one end of the second area of ​​the first sleeve 12 and one end of the second area of ​​the second sleeve 13, respectively. Among them, the first sleeve 12 and / or the second sleeve 13 may include a first area and a second area. The first area is arranged on a side of the first sleeve 12 and / or the second sleeve 13 close to the arm body 11 of the bending arm assembly 01. The second area is arranged on a side of the first sleeve 12 and / or the second sleeve 13 away from the arm body 11 of the bending arm assembly 01. When the two seat bodies 3131 abut against the second area of ​​the first sleeve 12 and the second area of ​​the second sleeve 13, the force arm can be larger during the correction process, and the correction can be easier, which is convenient for ensuring the correction effect and the pressing effect of the bushing unit 14.

[0075] This embodiment discloses a bending arm assembly 01 installation system, and the bending arm assembly 01 installation system is applied to a bending arm assembly 01 installation method of any of the above embodiments, such as Figure 2 As shown, the installation system of the bending arm assembly 01 may include: a base assembly 02, a positioning assembly 03, a pressing assembly 04, and a bending arm assembly 01. The base assembly 02 may be a fixed bracket to provide a positioning and support position for the positioning assembly 03, the pressing assembly 04, and the bending arm assembly 01.

[0076] The bent arm assembly 01 can be an assembly to be installed, such as Figure 6 , Figure 7 As shown, the arm assembly 01 may include an arm body 11, a first sleeve 12, a second sleeve 13, and a bushing unit 14. Figure 6 As shown, one end of the arm body 11 can be fixedly connected to a portion of the outer peripheral wall of the first sleeve 12, and the other end can be fixedly connected to a portion of the outer peripheral wall of the second sleeve 13. The first sleeve 12 and the second sleeve 13 can be spaced apart on the same central axis. The first sleeve 12 and the second sleeve 13 can be hollow cylindrical to accommodate the bushing unit 14. Figure 4 , Figure 5As shown, the bushing unit 14 may include a center sleeve 141, a connecting portion 142, and an outer sleeve 143. The outer peripheral neck of the outer sleeve 143 may match the inner diameter of the first sleeve 12 and the second sleeve 13, so that the bushing unit 14 may be installed in the first sleeve 12 and the second sleeve 13 in an interference fit manner. A through hole of a set size may be provided in the axial direction of the center sleeve 141. The connecting portion 142 may connect the center sleeve 141 and the outer sleeve 143.

[0077] like Figure 3 , Fig. 9 As shown, the positioning assembly 03 may include a first positioning unit 31 and a second positioning unit 32. The first positioning unit 31 may include a sliding seat 311, a support seat 312, a limit seat 313, and a first driving part 314. The sliding seat 311 may be drivingly connected to the first driving part 314. One side of the sliding seat 311 may be slidably connected to the base assembly 02. The first driving part 314 may drive the sliding seat 311 to slide back and forth along the base assembly 02. The other side of the sliding seat 311 may be detachably connected to the support seat 312 and the limit seat 313, so that the support seat 312 and the limit seat 313 may move with the sliding seat 311. One end of the support seat 312 may be detachably connected to a side of the sliding seat 311 away from the base assembly 02. The end of the support seat 312 away from the sliding seat 311 may be recessed toward the end close to the sliding seat 311 to form a groove, and the groove of the support seat 312 may be used to support the first sleeve 12 or the second sleeve 13 of the bending arm assembly 01. The limiting seat 313 may include a seat body 3131, one end of which may be detachably connected to a side of the sliding seat 311 away from the base assembly 02. The seat body 3131 may be disposed adjacent to a side of the support seat 312 away from the pressing assembly 04. One end of the second positioning unit 32 may be detachably connected to the base assembly 02, and the other end may be kept in contact with one side of the bending arm assembly 01, so as to facilitate keeping the bending arm assembly 01 from tilting in the vertical direction during the installation process. The bottoms of the first sleeve 12 and the second sleeve 13 may be in contact with the groove of the support seat 312. The middle portion of the arm body 11 of the bending arm assembly 01 may be rotatably connected to the second positioning unit 32. The two first positioning units 31 may be symmetrically disposed on both sides of the second positioning unit 32, and may be used to position the first sleeve 12 and the second sleeve 13 of the bending arm assembly 01, respectively. The positioning of the bending arm assembly 01 may be achieved by the cooperation of the first positioning unit 31 and the second positioning unit 32.

[0078] like Figure 3 , Figure 8As shown, the pressing assembly 04 may include a pressing seat 41, a pressing head 42, a positioning column 43, and a second driving portion 44. The second driving portion 44 may be detachably connected to a side of the sliding seat 311 away from the machine base assembly 02. One end of the pressing seat 41 may be detachably connected to one end of the second driving portion 44, and the other end may be detachably connected to one end of the pressing head 42. The second driving portion 44 may drive the pressing head 42 to move forward or backward in the direction of the support seat 312 and the limit seat 313. One end of the positioning column 43 may be embedded in the center position of one end of the pressing head 42 away from the pressing seat 41, and the other end of the positioning column 43 may extend in a direction close to the support seat 312. The diameter of the positioning column 43 may match the size of the through hole of the center sleeve 141, so that the positioning column 43 can extend into the through hole of the center sleeve 141, so that the bushing unit 14 can move with the pressing head 42. The pressing assembly 04 and the supporting seat 312 can be arranged on the sliding seat 311 along the same axis and at intervals, and the pressing assembly 04 can move toward or away from the supporting seat 312 .

[0079] like Figure 3 As shown, when the bending arm assembly 01 is positioned and fixed, one side of the arm body 11 can be kept in contact with the second positioning unit 32, the side of the first sleeve 12 away from the arm body 11 can be in contact with the groove of the support seat 312 of one first positioning unit 31 of the positioning assembly 03, and the side of the second sleeve 13 away from the arm body 11 can be in contact with the groove of the support seat 312 of another first positioning unit 31 of the positioning assembly 03. The support seat 312 can limit the height of the first sleeve 12 and the second sleeve 13. The end of the first sleeve 12 close to the second sleeve 13 can be in contact with a limit seat 313, and the end of the second sleeve 13 close to the first sleeve 12 can be in contact with another limit seat 313. The two limit seats 313 can limit the spacing between the first sleeve 12 and the second sleeve 13.

[0080] The installation system of the bending arm assembly 01 may also include a first pre-installed state and an installation position. The first pre-installed state may include sleeves of the bushing unit 14 on the positioning column 43 of the press assembly 04, and the bushing unit 14 moves along the central axis of the first sleeve 12 toward the direction close to the first sleeve 12 until the end of the bushing unit 14 away from the pressure head 42 abuts against one end of the first sleeve 12. And / or, the bushing unit 14 moves along the central axis of the second sleeve 13 toward the direction close to the second sleeve 13 until the end of the bushing unit 14 away from the pressure head 42 abuts against one end of the second sleeve 13. The installation position may include the outer peripheral walls of the two bushing units 14 abutting against the inner peripheral walls of the first sleeve 12 and the second sleeve 13 respectively, the spacing between the two adjacent bushing units 14 may be within the installation spacing range, the end of the first sleeve 12 away from the pressure head 42 may abut against one side of a seat body 3131, and the end of the second sleeve 13 away from the pressure head 42 may abut against one side of another seat body 3131. When the bushing unit 14 is pressed into the first sleeve 12 or the second sleeve 13 by the pressing head 42, the seat body 3131 can prevent the first sleeve 12 and the second sleeve 13 from moving too far following the pressing head 42. At the same time, the seat body 3131 can also provide lateral support for the first sleeve 12 and the second sleeve 13, so as to cooperate with the pressing head 42 to press the bushing unit 14 into the first sleeve 12 or the second sleeve 13.

[0081] In this embodiment, if Figure 8 As shown, the limiting seat 313 may further include a slider 3132 and an elastic portion 3133. The slider 3132 may be embedded in a side of the seat body 3131 close to the support seat 312. The outer peripheral wall of the slider 3132 may be slidably connected to the inner peripheral wall of the seat body 3131. One end of the elastic portion 3133 may be detachably connected to the seat body 3131, and the other end may be detachably connected to one end of the slider 3132. When the bending arm assembly 01 is positioned and the first sleeve 12 or the second sleeve 13 abuts against the support seat 312, the inner circumferential wall of the seat body 3131 and the inner circumferential wall of the first sleeve 12 or the second sleeve 13 are distributed along the same axis, and the inner circumferential wall of the seat body 3131 and the inner circumferential wall of the first sleeve 12 or the second sleeve 13 are smoothly transitioned and matched in size, so that the elastic part 3133 can drive the slider 3132 to enter the inner circumferential wall of the first sleeve 12 or the second sleeve 13 when it is extended, thereby achieving more accurate positioning of the first sleeve 12 and the second sleeve 13. The installation position can also include an end of the bushing unit 14 away from the pressure head 42 abutting against an end of the slider 3132 away from the elastic part 3133. When the pressing head 42 drives the bushing unit 14 to enter the first sleeve 12 and the second sleeve 13 , the end of the bushing unit 14 away from the pressing head 42 can abut against the slider 3132 , pushing the slider 3132 into the space formed by the inner circumferential wall of the seat body 3131 .

[0082] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present disclosure.

Claims

1. A method for installing a curved arm assembly, characterized in that: The bending arm assembly installation method comprises: Step S10, based on the bending arm assembly being positioned and fixed on the positioning assembly, obtaining the distance between the first sleeve and the second sleeve of the bending arm assembly; wherein, when the bending arm assembly is positioned and fixed, one side of the arm body of the bending arm assembly abuts against the second positioning unit of the positioning assembly, the side of the first sleeve away from the arm body abuts against one end of a support seat of a first positioning unit of the positioning assembly, the side of the second sleeve away from the arm body abuts against one end of a support seat of another first positioning unit of the positioning assembly, the end of the first sleeve close to the second sleeve abuts against a limiting seat of one of the first positioning units, and the end of the second sleeve close to the first sleeve abuts against a limiting seat of another first positioning unit; Step S20, based on the distance between the first sleeve and the second sleeve being greater than a standard threshold and less than a first set threshold, driving the pressure head of the pressing assembly to enter a first pre-installed state; wherein, the first pre-installed state includes sleeved a bushing unit on a positioning column of the pressing assembly, the bushing unit moves toward the direction approaching the first sleeve, and an end of the bushing unit away from the pressure head abuts against an end of the first sleeve; and / or, the bushing unit moves toward the direction approaching the second sleeve, and an end of the bushing unit away from the pressure head abuts against an end of the second sleeve; the standard threshold includes an upper limit and a lower limit of a standard value of the distance between the first sleeve and the second sleeve, and the first set threshold is the maximum value of the distance between the first sleeve and the second sleeve of the bending arm assembly that can be corrected; Step S30, based on the pressing head entering the first pre-installed state, driving the distance between the seat bodies of two adjacent limiting seats to decrease; The step S30 comprises: Step S31, based on the pressure head, the bushing unit is moved to the first pre-installed state, and a first spacing of the first sleeve and a second spacing of the second sleeve are obtained; wherein the first spacing includes a minimum distance between the first sleeve and a symmetric center plane of the positioning assembly; and the second spacing includes a minimum distance between the second sleeve and a symmetric center plane of the positioning assembly; Step S32, based on the first spacing being less than or equal to the second spacing, driving the pressing head adjacent to the first sleeve to enter a second pre-installed state, and the seat body of the limit seat adjacent to the second sleeve moves toward the first sleeve to a first set position; wherein the second pre-installed state includes a portion of the outer circumferential wall of the bushing unit abutting against a portion of the inner circumferential wall of the first sleeve, and the seat body adjacent to the first sleeve abutting against an end of the first sleeve away from the pressing head; Step S33, based on the pressing head entering the second pre-installed state and the seat body adjacent to the second sleeve moving toward the direction close to the first sleeve to the first set position, the pressing head and the seat body clamping the first sleeve move toward the direction away from the second sleeve to the second set position; wherein the second set position includes the seat body adjacent to the second sleeve abutting against an end of the second sleeve away from the pressing head; Step S34, based on the pressing head and the seat body clamping the first sleeve moving in a direction away from the second sleeve to the second set position, driving the pressing head adjacent to the second sleeve to enter the second pre-installed state; wherein the second pre-installed state also includes a portion of the outer peripheral wall of the bushing unit abutting against a portion of the inner peripheral wall of the second sleeve; Step S35, based on the pressure head adjacent to the second sleeve entering the second pre-installed state, driving the distance between two adjacent seat bodies to decrease; In step S40, based on the reduction in the spacing between two adjacent seat bodies, the pressing head presses the bushing unit into the installation position of the bending arm assembly; wherein, the installation position includes the outer circumferential walls of the two bushing units respectively abutting against the inner circumferential walls of the first sleeve and the second sleeve, the spacing between two adjacent bushing units is within the installation spacing range, the end of the first sleeve away from the pressing head abuts against one side of one seat body, and the end of the second sleeve away from the pressing head abuts against one side of the other seat body.

2. A method for installing a curved arm assembly according to claim 1, characterized in that: Driving the distance between two adjacent seats to decrease in step S35 includes the two adjacent seats simultaneously moving toward each other by a first set distance.

3. A method for installing a curved arm assembly according to claim 2, characterized in that: A≥B / 2; wherein A is the first set distance, and B is the difference between the distance between the first sleeve and the second sleeve and the standard threshold.

4. A method for installing a curved arm assembly according to claim 1, characterized in that: The bending arm assembly installation method also includes: Step S21, based on the fact that the distance between the first sleeve and the second sleeve is smaller than the standard threshold and larger than a second set threshold, driving the two adjacent seats to move simultaneously in a direction away from the adjacent seats by a second set distance; Step S22, based on the two adjacent base bodies simultaneously moving the second set distance in a direction away from the adjacent base bodies, driving the pressing head of the pressing assembly to enter the first pre-installed state; Step S23, based on the pressing head moving the bushing unit to the first pre-installed state, the pressing head presses the bushing unit into the installation position of the bending arm assembly.

5. A method for installing a curved arm assembly according to claim 4, characterized in that: C≥D / 2; wherein C is the second set distance, and D is the difference between the distance between the first sleeve and the second sleeve and the standard threshold.

6. A method for installing a curved arm assembly according to claim 4, characterized in that: The step S21 comprises: Step S211, based on the fact that the distance between the first sleeve and the second sleeve is smaller than the standard threshold and larger than a second set threshold, driving the second positioning unit of the positioning assembly to drive the bending arm assembly to move a third set distance in a direction away from the seat body; Step S212: Based on the second positioning unit driving the arm assembly to move the third set distance in the direction away from the seat, the two adjacent seats are driven to move the second set distance in the direction away from the adjacent seats at the same time.

7. A method for installing a curved arm assembly according to claim 6, characterized in that: The third set distance in step S211 includes one end of the two seat bodies respectively abutting against one end of the second area of ​​the first sleeve and one end of the second area of ​​the second sleeve; wherein the first sleeve and / or the second sleeve include a first area and a second area; the first area is arranged on a side of the first sleeve and / or the second sleeve close to the arm body of the bending arm assembly; the second area is arranged on a side of the first sleeve and / or the second sleeve away from the arm body of the bending arm assembly.

8. A bending arm assembly installation system, the bending arm assembly installation system is applied to a bending arm assembly installation method according to any one of claims 1 to 7, characterized in that: The bending arm assembly mounting system comprises: Base assembly; A positioning assembly, wherein the positioning assembly comprises a first positioning unit and a second positioning unit; the first positioning unit comprises a sliding seat, a supporting seat, a limiting seat, and a first driving part; the sliding seat is drivingly connected to the first driving part; one side of the sliding seat is slidably connected to the base assembly; one end of the supporting seat is detachably connected to a side of the sliding seat away from the base assembly; the end of the supporting seat away from the sliding seat is recessed toward the other end to form a groove; the limiting seat comprises a seat body, one end of the seat body is detachably connected to a side of the sliding seat away from the base assembly; the seat body is arranged adjacent to one side of the supporting seat; one end of the second positioning unit is detachably connected to the base assembly; two first positioning units are symmetrically arranged on both sides of the second positioning unit; A pressing assembly, the pressing assembly comprising a pressing seat, a pressing head, a positioning column, and a second driving part; the second driving part is detachably connected to a side of the sliding seat away from the machine base assembly; one end of the pressing seat is detachably connected to one end of the second driving part, and the other end is detachably connected to one end of the pressing head; one end of the positioning column is embedded in the center position of one end of the pressing head away from the pressing seat, and the other end extends toward the direction close to the support seat; the pressing assembly and the support seat are spaced apart on the sliding seat along the same axis; A bending arm assembly, the bending arm assembly comprising an arm body, a first sleeve, a second sleeve, and a bushing unit; one end of the arm body is fixedly connected to a portion of the outer peripheral wall of the first sleeve, and the other end is fixedly connected to a portion of the outer peripheral wall of the second sleeve; the first sleeve and the second sleeve are spaced apart on the same central axis; When the bent arm assembly is positioned and fixed, one side of the arm body abuts against the second positioning unit, the side of the first sleeve away from the arm body abuts against one end of a support seat of a first positioning unit of the positioning assembly, the side of the second sleeve away from the arm body abuts against one end of a support seat of another first positioning unit of the positioning assembly, the end of the first sleeve close to the second sleeve abuts against one of the limiting seats, and the end of the second sleeve close to the first sleeve abuts against the other limiting seat; The bending arm assembly installation system also includes a first pre-installed state and an installation position; the first pre-installed state includes sleeved on the positioning column of the pressing assembly, the bushing unit moves along the central axis of the first sleeve toward the direction close to the first sleeve, and the end of the bushing unit away from the pressure head abuts against one end of the first sleeve; or, the bushing unit moves along the central axis of the second sleeve toward the direction close to the second sleeve, and the end of the bushing unit away from the pressure head abuts against one end of the second sleeve; the installation position includes the outer circumferential walls of the two bushing units abutting against the inner circumferential walls of the first sleeve and the second sleeve respectively, the spacing between the two adjacent bushing units is within the installation spacing range, the end of the first sleeve away from the pressure head abuts against one side of one of the seat bodies, and the end of the second sleeve away from the pressure head abuts against one side of the other seat body.

9. The bending arm assembly installation system according to claim 8, characterized in that: The limit seat also includes a slider and an elastic part; the slider is embedded in the side of the seat body close to the support seat; the outer peripheral wall of the slider is slidably connected to the inner wall of the seat body; one end of the elastic part is detachably connected to the seat body, and the other end is detachably connected to one end of the slider; the installation position also includes an end of the bushing unit away from the pressure head abutting against an end of the slider away from the elastic part.

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