Auxiliary positioning device and method for windscreen wiper arm of passenger car

Abstract

The invention discloses an auxiliary positioning device and method for a windscreen wiper arm of a passenger car, solves the problem that in the prior art, positioning is not accurate enough when a windscreen wiper is installed, and has the beneficial effect that accurate positioning of the windscreen wiper arm is guaranteed by guaranteeing the accuracy of the auxiliary positioning device. According to the specific scheme, the auxiliary positioning device for the windscreen wiper arm of the passenger car comprises a first positioning piece and a second positioning piece, the first positioning piece and the second positioning piece are arranged at an interval, and the first positioning piece and the second positioning piece are connected through a connecting piece; the inner surfaces, facing the windshield glass, of the first positioning piece and the second positioning piece are clamped with the windshield lower decoration plate, a first limiting groove is formed in the inner surface, facing the windshield glass, of the first positioning piece so as to limit the installation direction of the left side windscreen wiper arm, and a first concave part is arranged on the side, facing the second positioning piece, of the first positioning piece. And the first concave part can be clamped with the mounting end part of the right wiper arm.

Description

Technical Field

[0001] The invention relates to the technical field of windshield wiper installation, and in particular to an auxiliary positioning device and method for a windshield wiper arm of a passenger car. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] With the maturity and development of the vehicle market, the structural design of automobiles has also had significant differences in different market segments. The windshield wiper arms of automobiles are adaptively designed according to the size and angle of the windshield, the front cabin sheet metal, the lower windshield trim and other structural differences of the automobile, and combined with product performance. One end of the left and right windshield wiper arms needs to be fixed to the two power output shafts corresponding to the wiper motor, and then tightened with nuts according to the specified torque. Among them, there are insignificant structural differences between the left and right wiper arms of the windshield, and the left and right wiper arms need to be carefully visually judged during assembly. After the wiper arm is inserted into the input shaft of the wiper motor, it is necessary to manually visually check the subtle alignment mark on the windshield to ensure the installation angle of the wiper arm. The inventor found that because the windshield and the lower windshield trim are uneven, the installation of the wipers on both sides according to the traditional assembly process will not ensure the standardization of product assembly, which greatly affects production efficiency;

[0004] In the prior art, there is a positioning tool for positioning the wiper. For example, Chinese patent application CN201921179097.1, with an application date of July 25, 2019, discloses a front wiper arm installation positioning tool, which specifically sets two positioning support frames, but the positioning object is the connection head between the wiper arm and the film. Because the wiper arm is relatively long and thin, the positioning of the wiper arm connection head cannot guarantee the positioning accuracy of the wiper arm; and how the positioning support frames on both sides are accurately positioned, there is no corresponding positioning means. If the positioning support frames are not placed accurately, the accurate positioning of the film cannot be guaranteed; and the distance between the two positioning support frames is relatively large, which makes the overall area large and inconvenient for operators to operate.

[0005] Because the wiper arms on both sides are different and not exactly the same, if they are installed incorrectly, the operators sometimes fail to discover it in time, resulting in subsequent rework problems.

[0006] In addition, when using an electric tool to tighten the wiper arm nut, because there are no other fixings to fix the wiper arm, manual assistance is required to simultaneously support the wiper arm to the correct angle to eliminate the impact of the reaction force of the electric tool on the final installation angle of the wiper arm. Summary of the invention

[0007] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a passenger car windshield wiper arm auxiliary positioning device to solve the problems of angle positioning of the left and right wiper arms of the windshield and the misplacement of the left and right wiper arms on the outer contour of the surrounding irregular parts, thereby solving the problem of operators relying on visual angle alignment and manually assisting in supporting the wiper arms to the correct angle to eliminate the influence of the reaction force of the power tool on the final installation angle of the wiper arms, thereby improving product assembly consistency and production efficiency.

[0008] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0009] The invention discloses an auxiliary positioning device for a windshield wiper arm of a passenger car, comprising a first positioning member and a second positioning member, wherein the first positioning member and the second positioning member are spaced apart from each other by a distance, the first positioning member and the second positioning member are connected by a connecting member, the inner surfaces of the first positioning member and the second positioning member facing the windshield are respectively engaged with the lower decorative plate of the windshield, the first positioning member is provided with a first limiting groove on the inner surface facing the windshield to limit the installation direction of the left wiper arm, the first positioning member is provided with a first recess on the side facing the second positioning member, the first recess can be engaged with the installation end of the right wiper arm to position the first positioning member through the installation end of the right wiper arm, and the second positioning member is provided with a second limiting groove on the inner surface facing the windshield to limit the installation direction of the right wiper arm.

[0010] In the above-mentioned auxiliary positioning device for windshield wiper arms of a passenger car, considering that the width of the lower windshield decorative plate is relatively narrow, the inner surfaces of the first positioning member and the second positioning member facing the windshield are also in contact with the side of the windshield close to the lower windshield decorative plate;

[0011] The first limiting groove and the second limiting groove have different shapes.

[0012] As described above, in the auxiliary positioning device for windshield wiper arms of a passenger car, the distance between the first positioning member and the second positioning member is smaller than the projection length of a section of the right wiper arm connected to its mounting end in the lateral direction, and the distance between the first positioning member and the second positioning member is greater than 15 cm. In this way, the distance between the first positioning member and the second positioning member is within an appropriate range, and is neither too large, which results in a large footprint and inconvenience in operation, nor too small, which ensures the distance between the two, and facilitates accurate positioning of the wiper arms on both sides at the same time.

[0013] In the above-mentioned auxiliary positioning device for a windshield wiper arm of a passenger car, the first positioning member is provided with a first slot on the inner surface of the windshield, the first slot can be engaged with a side of the lower windshield decorative plate close to the windshield, and the first slot is located on the inner side of the first limiting slot;

[0014] The first limiting groove is bent and designed to match the shape of the left wiper arm at the first limiting groove.

[0015] As described above, in an auxiliary positioning device for a windshield wiper arm of a passenger car, the first recess is an arc-shaped recess, and the first recess is bent into an L-shape so that when the first positioning member is engaged with the mounting end of the right wiper arm, the position of the first positioning member can be positioned from the X direction and the Y direction. The first positioning member is also provided with a second recess on the inner surface facing the windshield, and the second recess is located on one side of the first recess, and the shape of the second recess fits the surface of the lower decorative panel of the windshield.

[0016] In the auxiliary positioning device for the windshield wiper arm of a passenger car as described above, the second positioning member is provided with a second slot on the inner surface facing the windshield, the second slot can be engaged with a side of the lower windshield decorative panel close to the windshield, and the second slot is located on the outer side of the second limiting slot.

[0017] In the auxiliary positioning device for windshield wiper arms of passenger vehicles as described above, a third recess is further provided on the inner surface of the second positioning member facing the windshield, the third recess is located on one side of the second limiting groove, and the third recess is in contact with the surface of the lower decorative panel of the windshield.

[0018] In the passenger car windshield wiper arm auxiliary positioning device as described above, the width of the second limiting groove gradually decreases from one side close to the first positioning member to the other side of the second positioning member, and the inclination angle of the second limiting groove relative to the connecting member is consistent with the inclination angle of the right wiper arm in the second limiting groove.

[0019] In the above-mentioned auxiliary positioning device for a windshield wiper arm of a passenger vehicle, the length of the first positioning member is greater than the length of the second positioning member;

[0020] The connecting member is a connecting rod, and the first positioning member and the second positioning member are respectively vertically connected to the connecting rod.

[0021] In a second aspect, the present invention further provides a method for auxiliary positioning of a windshield wiper arm of a passenger car, using the auxiliary positioning device for a windshield wiper arm of a passenger car, comprising the following contents:

[0022] A first positioning member and a second positioning member are manufactured, wherein the first positioning member and the second positioning member are connected via a connecting member, the first positioning member is provided with a first recess and a first limiting groove, and the second positioning member is provided with a second limiting groove;

[0023] After the windshield and the lower decorative panel of the windshield are assembled, the operator pre-installs the left wiper arm and the right wiper arm on the corresponding motor output shaft, and preliminarily adjusts the setting angles of the left wiper arm and the right wiper arm;

[0024] A first positioning member is placed on the surface of the lower decorative plate of the windshield, and a first recess of the first positioning member is engaged with the mounting end of the right wiper arm, thereby defining the position of the first positioning member. Since the first positioning member and the second positioning member are connected, the position of the second positioning member is defined;

[0025] Further adjusting the setting angles of the left wiper arm and the right wiper arm according to the positions of the first limiting groove and the second limiting groove until a portion of the left wiper arm is inserted into the first limiting groove and a portion of the right wiper arm is inserted into the second limiting groove;

[0026] Tighten the left wiper arm and the right wiper arm. After the tightening is completed, move the passenger car windshield wiper arm auxiliary positioning device away from the windshield to remove it.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1) The positioning device in the present invention includes a first positioning member and a second positioning member, the first positioning member has a first recess, when the positioning device is installed, the first recess is engaged with the installation end of the right wiper arm, the first positioning member and the second positioning member are engaged with the lower decorative plate of the windshield facing the inner surface of the windshield, so that the position of the auxiliary positioning device can be accurately positioned, after the two are accurately positioned, the angle of the left wiper arm and the right wiper arm can be limited by the first limiting groove and the second limiting groove, so that the positioning of the wiper can be accurately guaranteed, the positioning angle of the left and right wipers can be quickly aligned, and the consistency of product assembly can be ensured, and there is no need for operating employees to visually align at a close distance, thereby reducing non-value-added working hours.

[0029] 2) The present invention uses an auxiliary positioning device to position the left and right wiper arms respectively, which simplifies the operation steps to the greatest extent, improves production efficiency, and reduces the difficulty of employees' operations. When using the auxiliary positioning device during the process of tightening nuts with electric tools, there is no need for employees to hold the wiper arms by hand to offset the reaction force of the electric tool.

[0030] 3) The present invention takes the setting of the structural member space into consideration. The inner surfaces of the first positioning member and the second positioning member facing the windshield are also fitted with the side of the windshield close to the lower windshield decorative plate, thereby ensuring the setting length of the two positioning members and the setting of each limit groove.

[0031] 4) The shapes of the first limit groove and the second limit groove of the present invention are different, so the operator can install them according to the compatibility of the first limit groove, the second limit groove and the corresponding side wiper arm to avoid installation errors. If the wiper arms on both sides are installed incorrectly, the auxiliary positioning device cannot be placed, making it impossible to proceed to the next step, which is conducive to the occurrence of installation errors and timely correction of errors.

[0032] 5) In the present invention, the first recess is an arc-shaped recess to engage with the mounting end of the right wiper arm. The first recess is bent into an L-shape so that when the first recess is engaged with the mounting end of the right wiper arm, the position of one side of the first positioning member can be positioned from the X direction and the Y direction. The first positioning member is also provided with a first slot, and the position of the other side of the first positioning member is positioned from the Y direction through the first slot, thereby ensuring that the first positioning member is accurately positioned. Since the first positioning member is connected to the second positioning member, the second positioning member is provided with a second slot, and the second slot can engage with the side of the lower decorative plate of the windshield close to the windshield glass. In this way, the setting accuracy of the auxiliary positioning device can be guaranteed, thereby correspondingly ensuring the installation position of the two wiper arms. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0034] Figure 1 A schematic diagram of a windshield wiper arm auxiliary positioning device for a passenger car according to one or more embodiments of the present invention Figure 1 .

[0035] Figure 2 A schematic diagram of a windshield wiper arm auxiliary positioning device for a passenger car according to one or more embodiments of the present invention Figure 2 .

[0036] Figure 3 The present invention is a schematic diagram of a working state of a passenger car windshield wiper arm auxiliary positioning device according to one or more embodiments of the present invention. Figure 1 .

[0037] Figure 4 The present invention is a schematic diagram of a working state of a passenger car windshield wiper arm auxiliary positioning device according to one or more embodiments of the present invention. Figure 2 .

[0038] Figure 5 The present invention is a cross-sectional view of a passenger vehicle windshield wiper arm auxiliary positioning device in operation according to one or more embodiments of the present invention.

[0039] Figure 6 The present invention Figure 5 A magnified schematic diagram of center A.

[0040] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0041] Wherein: 1. first positioning member, 2. second positioning member, 3. connecting member, 4. handle, 5. bolt, 6. left wiper arm, 7. right wiper arm, 8. windshield, 9. lower windshield decorative plate;

[0042] 1-1. First limiting groove, 1-2. First recess, 1-3. First card slot, 1-4. Second recess;

[0043] 2-1. Second card slot, 2-2. Second limiting slot, 2-3. Third recess. DETAILED DESCRIPTION

[0044] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0045] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0046] As introduced in the background technology, the prior art has the problem of inaccurate positioning during installation of wipers. In order to solve the above technical problem, the present invention proposes an auxiliary positioning device for a windshield wiper arm of a passenger car.

[0047] Embodiment 1

[0048] In a typical embodiment of the present invention, reference is made to Figure 1 and Figure 2 As shown, an auxiliary positioning device for a windshield wiper arm of a passenger car includes a first positioning member 1 and a second positioning member 2, the first positioning member 1 and the second positioning member 2 are set at a distance, the first positioning member and the second positioning member are connected by a connecting member, the inner surfaces of the first positioning member 1 and the second positioning member 2 facing the windshield 8 are respectively engaged with the lower windshield decorative plate, the first positioning member 1 is provided with a first limiting groove 1-1 on the inner surface facing the windshield to limit the installation direction of the left wiper arm 6, the first positioning member 1 is provided with a first recess 1-2 on the side facing the second positioning member 2, the first recess 1-2 can be engaged with the installation end of the right wiper arm 7 to position the position of the first positioning member 1 through the installation end of the right wiper arm 7, and the second positioning member 2 is provided with a second limiting groove 2-2 on the inner surface facing the windshield 8 to limit the installation direction of the right wiper arm 7.

[0049] It should be noted that the inner surfaces of the first positioning member 1 and the second positioning member 2 refer to the surfaces facing the windshield or the lower decorative plate of the windshield.

[0050] Taking into account that the width of the windshield lower decorative panel 9 is relatively narrow, and because the first positioning member 1 and the second positioning member 2 have to cross one side of the windshield lower decorative panel 9, to ensure the accurate positioning of the first positioning member 1 and the second positioning member 2, the inner surface of the first positioning member 1 and the second positioning member 2 facing the windshield 8 is also in contact with the side of the windshield close to the windshield lower decorative panel 9.

[0051] It should be noted that the distance between the first positioning member 1 and the second positioning member 2 is smaller than the projected length of a section connecting the right wiper arm 7 to its mounting end in the lateral direction. The section connecting the right wiper arm 7 to its mounting end is also the thickest section of the right wiper arm 7. This section also has a set length. By accurately positioning it, the accurate positioning of the right wiper arm 7 is guaranteed. The distance between the first positioning member 1 and the second positioning member 2 is greater than 15 cm. In this way, the distance between the first positioning member and the second positioning member is within an appropriate range. It will not be too large, resulting in a large footprint and inconvenient operation, nor will it be too small. The distance between the two is guaranteed, which is convenient for accurately positioning the wiper arms on both sides at the same time.

[0052] refer to Figure 2 As shown, the first positioning member 1 is provided with a first slot 1-3 on the inner surface facing the windshield, and the first slot 1-3 can be engaged with a side of the windshield lower decorative plate close to the windshield 8, and the first slot 1-3 is located on the inner side of the first limiting slot 1-1 (the side away from the windshield is the inner side), and considering the shape of the windshield lower decorative plate, the first slot 1-3 is a straight slot or an arc slot;

[0053] It can be understood that because one side of the first recess 1-2 of the first positioning member is exactly the bent section of the thinner middle part of the left wiper arm 6, in order to enable the first limiting groove to accurately position the left wiper arm 6, the first limiting groove is bent and designed to match the shape of the left wiper arm at the first limiting groove 1-1.

[0054] Among them, the first recess 1-2 is an arc-shaped recess, the inner diameter of the arc-shaped recess is adapted to the outer diameter of the mounting end of the right wiper arm 7, and the first recess is bent in an L-shape, that is, the width of the first positioning member on the side of the first recess away from the windshield is greater than the body width of the first positioning member, and the bending part of the first recess is an arc transition, so that when the first positioning member is engaged with the mounting end (arc) of the right wiper arm 7, the position of the first positioning member 1 can be positioned from the X direction and the Y direction, refer to Figure 5 and Figure 6 As shown, the inner surface of the first positioning member 1 facing the windshield 8 or the lower windshield decorative plate 9 is also provided with a second recess 1-4, which is located on one side of the first recess 1-2, and the shape of the second recess 1-4 fits the surface of the lower windshield decorative plate 9.

[0055] In addition, a second card slot 2-1 is provided on the inner surface of the second positioning member 2 facing the windshield 8. The second card slot 2-1 can engage with the side of the lower windshield decorative plate close to the windshield 8. The second card slot 2-1 is located on the outer side of the second limiting slot (the side close to the windshield is the outer side). Considering the shape of the lower windshield decorative plate 9, the second card slot 2-1 is a straight slot or an arc slot, and the first card slot and the second card slot are on the same straight line or the same arc.

[0056] Taking into account the structural setting of the lower windshield decorative panel 9, a third recess 2-3 is further provided on the inner surface of the second positioning member 2 facing the windshield glass. The third recess 2-3 is located on one side of the second limiting groove. The second limiting groove is located between the third recess and the second card groove. The third recess is fitted with the surface of the lower windshield decorative panel, and the shape of the third recess is not strictly limited.

[0057] In some examples, since the width of the right wiper arm 7 gradually decreases, the width of the second limiting groove 2-2 gradually decreases from the side of the second positioning member close to the first positioning member 1 to the other side of the second positioning member 2, and the inclination angle of the second limiting groove 2-2 relative to the connecting member is consistent with the inclination angle of the right wiper arm in the second limiting groove.

[0058] In this embodiment, the length of the first positioning member 1 is greater than that of the second positioning member 2; the connecting member 3 is a connecting rod, and the first positioning member 1 and the second positioning member 2 are respectively vertically connected to the connecting rod. The connecting rod avoids the installation end of the right wiper arm at the connection position of the first positioning member, and spatial avoidance is made for the fixation of the installation end, and there is no interference with the electric tightening tool and the socket.

[0059] Specifically, the first positioning member 1 is the first positioning block, and the second positioning member 2 is the second positioning block. The first positioning member 1 and the second positioning member 2 both have a set width and a set thickness. Because the first positioning member and the second positioning member are provided with limiting grooves, recesses and other structures, the thickness of the first positioning member and the second positioning member varies at different positions, but the outer surfaces of the first positioning member and the second positioning member are in the same plane, and the two sides of the connecting member are respectively connected to the upper surfaces of the first positioning member and the second positioning member (away from the outer surface of the windshield) by bolts. The connecting member has a set width, and a handle 4 is provided on the upper surface of the connecting member. The staff holds the handle 4 to facilitate the taking of the auxiliary positioning device.

[0060] Specifically, the first positioning member 1 and the second positioning member 2 are designed to imitate the outer contours of the wiper arms on both sides, the outer surface of the windshield, and the decorative plate under the windshield. The positioning is accurate and easy to use. The material of the first positioning member and the second positioning member can be synthetic fiber, and the overall weight is light, which is convenient for assembly and mass production, while reducing product defects and manufacturing costs.

[0061] In addition, it is easy to understand that flocking protective material is adhered to the contact surfaces of the first positioning member 1, the second positioning member 2, the windshield 8, the wiper arms on both sides, and the lower windshield decorative plate 9 to avoid scratches on the exterior surfaces of the parts during use.

[0062] The auxiliary positioning device provided in this embodiment includes a first positioning member and a second positioning member. The first positioning member has a first recess. When the positioning device is installed, the first recess is engaged with the installation end of the right wiper arm. The first positioning member and the second positioning member are engaged with the lower decorative panel of the windshield facing the inner surface of the windshield. In this way, the position of the auxiliary positioning device can be accurately positioned, and the first positioning member and the second positioning member are auxiliary limited by the second recess and the third recess. After the first positioning member and the second positioning member are accurately positioned, the left wiper arm and the right wiper arm can be positioned separately by the first limiting groove and the second limiting groove, so that the positioning of the wiper can be accurately guaranteed.

[0063] Embodiment 2

[0064] This embodiment provides a method for assisting the positioning of a windshield wiper arm of a passenger vehicle, using the auxiliary positioning device for the windshield wiper arm of a passenger vehicle described in the first embodiment, referring to Figure 3 , Figure 4 , including the following:

[0065] A first positioning member 1 and a second positioning member 2 are manufactured. The first positioning member and the second positioning member are connected by a connecting member. The first positioning member is provided with a first recess 1-2 and a first limiting groove 1-1, and the second positioning member is provided with a second limiting groove 2-2;

[0066] After the windshield and the lower decorative panel of the windshield are assembled, the operator pre-installs the left wiper arm and the right wiper arm at the corresponding motor output shaft, and preliminarily adjusts the setting angles of the left wiper arm 6 and the right wiper arm 7;

[0067] A first positioning member is placed on the surface of the lower decorative plate of the windshield, and the first recess 1-2 of the first positioning member is engaged with the mounting end of the right wiper arm 7, thereby defining the position of the first positioning member. Since the first positioning member 1 and the second positioning member 2 are connected, the position of the second positioning member 2 is defined.

[0068] Further adjusting the setting angles of the left wiper arm and the right wiper arm according to the positions of the first limiting groove and the second limiting groove until a portion of the left wiper arm is inserted into the first limiting groove and a portion of the right wiper arm is inserted into the second limiting groove;

[0069] Tighten the left wiper arm and the right wiper arm. After the tightening is completed, move the passenger car windshield wiper arm auxiliary positioning device away from the windshield to remove it.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A windshield wiper arm auxiliary positioning device for a passenger car, characterized in that: It includes a first positioning member and a second positioning member, the first positioning member and the second positioning member are set at a distance, the first positioning member and the second positioning member are connected by a connecting member, the inner surfaces of the first positioning member and the second positioning member facing the windshield are respectively engaged with the lower windshield decorative plate, the first positioning member is provided with a first limiting groove on the inner surface of the windshield to limit the installation direction of the left wiper arm, the first positioning member is provided with a first recess on the side of the second positioning member, the first recess can be engaged with the installation end of the right wiper arm to position the position of the first positioning member through the installation end of the right wiper arm, and the second positioning member is provided with a second limiting groove on the inner surface of the windshield to limit the installation direction of the right wiper arm.

2. The auxiliary positioning device for windshield wiper arm of a passenger car according to claim 1, characterized in that: The inner surfaces of the first positioning member and the second positioning member facing the windshield glass cross one side of the windshield glass decorative plate and fit with the side of the windshield glass close to the lower windshield decorative plate; The first limiting groove and the second limiting groove have different shapes.

3. The auxiliary positioning device for windshield wiper arm of a passenger car according to claim 1, characterized in that: The distance between the first positioning member and the second positioning member is smaller than the projection length of a section connecting the right wiper arm and its mounting end in the lateral direction, and the distance between the first positioning member and the second positioning member is greater than 15 cm.

4. The auxiliary positioning device for windshield wiper arm of a passenger car according to claim 1, characterized in that: The first positioning member is provided with a first slot on the inner surface facing the windshield, the first slot can be engaged with a side of the windshield lower decorative plate close to the windshield, and the first slot is located on the inner side of the first limiting slot; The first limiting groove is bent and designed to match the shape of the left wiper arm at the first limiting groove.

5. The auxiliary positioning device for windshield wiper arm of a passenger car according to claim 4, characterized in that: The first recess is an arc-shaped recess, which is bent into an L-shape so that when the first positioning member is engaged with the mounting end of the right wiper arm, the position of the first positioning member can be positioned from the X direction and the Y direction. The first positioning member is also provided with a second recess on the inner surface facing the windshield, and the second recess is located on one side of the first recess. The shape of the second recess fits the surface of the lower decorative panel of the windshield.

6. The auxiliary positioning device for windshield wiper arm of a passenger car according to claim 1, characterized in that: The second positioning member is provided with a second slot on the inner surface facing the windshield, the second slot can be engaged with a side of the windshield lower decorative plate close to the windshield, and the second slot is located outside the second limiting slot.

7. The auxiliary positioning device for windshield wiper arm of a passenger car according to claim 6, characterized in that: The inner surface of the second positioning member facing the windshield is further provided with a third recessed portion, the third recessed portion is located at one side of the second limiting groove, and the third recessed portion is in contact with the surface of the lower decorative plate of the windshield.

8. The auxiliary positioning device for windshield wiper arm of a passenger car according to claim 1, characterized in that: From one side close to the first positioning member to the other side of the second positioning member, the width of the second limiting groove gradually decreases, and the inclination angle of the second limiting groove relative to the connecting member is consistent with the inclination angle of the right wiper arm in the second limiting groove.

9. The auxiliary positioning device for windshield wiper arm of a passenger car according to claim 1, characterized in that: The length of the first positioning member is greater than the length of the second positioning member; The connecting member is a connecting rod, and the first positioning member and the second positioning member are respectively vertically connected to the connecting rod.

10. A method for auxiliary positioning of a windshield wiper arm of a passenger car, characterized in that: A passenger car windshield wiper arm auxiliary positioning device according to any one of claims 1 to 9 comprises the following contents: A first positioning member and a second positioning member are manufactured, wherein the first positioning member and the second positioning member are connected via a connecting member, the first positioning member is provided with a first recess and a first limiting groove, and the second positioning member is provided with a second limiting groove; After the windshield and the lower decorative panel of the windshield are assembled, the operator pre-installs the left wiper arm and the right wiper arm on the corresponding motor output shaft, and preliminarily adjusts the setting angles of the left wiper arm and the right wiper arm; A first positioning member is placed on the surface of the lower decorative plate of the windshield, and a first recess of the first positioning member is engaged with the mounting end of the right wiper arm, thereby defining the position of the first positioning member. Since the first positioning member and the second positioning member are connected, the position of the second positioning member is defined; Further adjusting the setting angles of the left wiper arm and the right wiper arm according to the positions of the first limiting groove and the second limiting groove until a portion of the left wiper arm is inserted into the first limiting groove and a portion of the right wiper arm is inserted into the second limiting groove; Tighten the left wiper arm and the right wiper arm. After the tightening is completed, move the passenger car windshield wiper arm auxiliary positioning device away from the windshield to remove it.

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