Quickly adjustable wiper arm positioning tool

Abstract

The utility model discloses a quick adjustable wiper arm positioning tool, be used for assisting wiper arm installation to car, including the positioning frame for positioning on car, at least one adjusting frame for positioning wiper arm is movably arranged on the positioning frame, and the adjusting frame is connected with the positioning frame through the tightness adjusting component, so that the adjusting frame has the free adjusting state of movable relative to the positioning frame and the locking state of inmovable relative to the positioning frame. The utility model can quickly adjust wiper arm positioning tool under the condition of no any auxiliary tool, so that the wiper of left and right wiper arm can be positioned on the front windshield positioning point accurately and quickly, and the assembly efficiency of worker is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a quick-adjustable wiper arm positioning fixture. Background Technology

[0002] Cars typically have two wiper arms installed at the windshield. In rainy or snowy weather, the oscillation of these two wiper arms removes water droplets from the windshield. The wiper arms are usually assembled by first pre-installing the main and auxiliary wiper arms into the pins on the wiper motor connecting rod, and then tightening the retaining nuts.

[0003] Currently, the initial position of the wiper arm blades and the positioning point on the windshield are mostly determined by visual positioning by employees. In order to ensure the accuracy of the wiper arm installation position, some companies have begun to use wiper arm positioning fixtures to position the wiper arms, ensuring the accurate installation position of the wiper arms and improving the installation efficiency of the wiper arms.

[0004] However, existing conventional wiper arm positioning fixtures on the market have certain drawbacks. Specifically, they are non-adjustable and cannot achieve precise wiper arm positioning. This is because there are inherent errors in the production of the vehicle's glass and sheet metal in each batch, leading to variations in their relative positions. Furthermore, wiper arms also experience batch-by-batch production errors. Existing positioning fixtures cannot quickly adjust to these actual errors in the components. Therefore, it is necessary to design a quickly adjustable wiper arm positioning fixture to solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a quick-adjustable wiper arm positioning fixture. This invention can quickly adjust the wiper arm positioning fixture without any auxiliary tools, so that the wiper blades of the left and right wiper arms can be accurately and quickly positioned on the windshield positioning point, while also improving the assembly efficiency of workers.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-adjustable wiper arm positioning fixture for assisting in the installation of a wiper arm onto a car, comprising a positioning frame for positioning on the car, wherein at least one adjusting frame for positioning the wiper arm is movably disposed on the positioning frame, and the adjusting frame is connected to the positioning frame through a tension adjustment component, such that the adjusting frame has a freely adjustable state that is movable relative to the positioning frame and a locked state that is immovable relative to the positioning frame.

[0007] By adopting the above technical solution, a movable adjusting bracket is set on the positioning frame for fine-tuning the wiper arm. Specifically, the joint hole of the wiper arm is first inserted into the corresponding swing arm shaft, and the wiper blade is positioned on the windshield positioning point. Then, the positioning bracket of the positioning fixture is installed on the corresponding position of the car. The adjusting bracket is adjusted to the appropriate position and mates with the wiper arm positioning. After locking the adjusting bracket with the locking adjustment component, the fixing nut of the wiper arm is tightened to complete the positioning and installation of the wiper arm. This allows for quick adjustment of the wiper arm positioning fixture without any auxiliary tools, enabling the wiper blades of the left and right wiper arms to be accurately and quickly positioned on the windshield positioning point, while also improving the assembly efficiency of workers.

[0008] The present invention is further configured such that the adjusting frame is provided with at least two guide protrusions, and the positioning frame is provided with a number of waist-shaped limiting grooves corresponding to the number of guide protrusions. The extending directions of the multiple waist-shaped limiting grooves are parallel or coincident with each other, and the guide protrusions are slidably disposed in the corresponding waist-shaped limiting grooves.

[0009] By adopting the above technical solution and making the limiting groove structure into an waist shape, the position of the adjusting frame can be directionally adjusted.

[0010] The present invention is further configured such that a positioning pin is inserted on the side of the adjusting frame near the positioning frame, and the round end of the positioning pin protrudes from the surface of the adjusting frame to form the guide protrusion.

[0011] By adopting the above technical solution, not only is the processing convenient, but the assembly is also efficient and the maintainability is strong.

[0012] The present invention is further configured such that the tension adjustment assembly includes a T-bolt and a locking nut, the adjustment frame has a T-shaped hole that matches the T-bolt, the positioning frame has a waist-shaped hole for the threaded part of the T-bolt to pass through, the locking nut is threadedly connected to the threaded part of the T-bolt, and when the locking nut abuts against the positioning frame, the adjustment frame is locked onto the positioning frame by the T-bolt.

[0013] By adopting the above technical solution, the adjustment frame can be switched between free adjustment and locked states by loosening or tightening the locking nut, which is very convenient to operate.

[0014] The present invention is further configured such that the locking nut is a wing nut.

[0015] By adopting the above technical solution and using wing nuts as locking nuts, it can be operated by hand without any auxiliary tools, and the installation and disassembly are very convenient, which can greatly improve the assembly efficiency of workers.

[0016] The present invention is further configured such that a flat washer and a spring washer are sandwiched between the locking nut and the positioning frame.

[0017] By adopting the above technical solution, the combined use of flat washers and spring washers can not only protect the surface of the positioning frame from scratches or crushing, but also prevent loosening and resist shock, thereby improving the stability of the adjustment frame when locked on the positioning frame.

[0018] The present invention is further provided that the positioning frame is provided with at least two positioning slots for engaging with the protruding parts of the ventilation cover.

[0019] By adopting the above technical solution, the mounting bracket can be positioned and installed through a snap-fit ​​connection, making the installation operation very convenient.

[0020] The present invention is further provided that the adjusting bracket is provided with a positioning groove for embedding the wiper arm.

[0021] By adopting the above technical solution, the wiper arm is embedded in the positioning groove on the adjustment bracket, thereby achieving the positioning of the wiper arm, and the positioning operation is very convenient. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a specific embodiment of the present utility model;

[0023] Figure 2 This is a perspective view of the present utility model;

[0024] Figure 3 This is a partial exploded view of the present invention;

[0025] Figure 4 This is a cross-sectional view showing the location of the positioning pin in this utility model.

[0026] Figure 5 This is a cross-sectional view showing the position of the tension adjustment component of this utility model.

[0027] In the diagram: 1. Positioning bracket; 2. Adjustment bracket; 3. Tension adjustment assembly; 4. Guide protrusion; 5. Waist-shaped limiting groove; 6. Positioning pin; 7. T-bolt; 8. Locking nut; 9. T-hole; 10. Waist-shaped hole; 11. Flat washer; 12. Spring washer; 13. Positioning slot; 14. Positioning groove; 15. Wiper arm; 16. Windshield; 17. Ventilation cover; 18. Swing arm shaft. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example: As attached Figures 1-5 The illustration shows a quick-adjustable wiper arm positioning fixture for assisting in the installation of wiper arms 15 onto a vehicle. The fixture includes a positioning frame 1 for positioning on the vehicle, and at least one adjusting frame 2 for positioning the wiper arms 15 is movably mounted on the positioning frame 1. In this embodiment, two adjusting frames 2 are used to position two wiper arms 15 respectively. The adjusting frames 2 are connected to the positioning frame 1 via a tension adjustment component 3, allowing the adjusting frames 2 to have a freely adjustable state relative to the positioning frame 1 and a locked state relative to the positioning frame 1. This fixture allows for quick adjustment of the wiper arms 15 positioning without any auxiliary tools, ensuring that the wiper blades of the left and right wiper arms 15 are accurately and quickly positioned on the windshield 16 positioning points, while also improving the assembly efficiency of workers.

[0030] As attached Figure 3 and attached Figure 4 As shown, the adjusting frame 2 is provided with at least two guide protrusions 4, and the positioning frame 1 is provided with a number of waist-shaped limiting grooves 5 corresponding to the number of guide protrusions 4. The extending directions of the multiple waist-shaped limiting grooves 5 are parallel or coincident with each other, and the guide protrusions 4 are slidably disposed in the corresponding waist-shaped limiting grooves 5. By making the limiting groove structure into a waist shape, the directional adjustment of the position of the adjusting frame 2 can be realized.

[0031] The guide protrusion 4 has the following two configuration methods:

[0032] (1) Integrated structure, that is, the side of the adjustment frame 2 near the positioning frame 1 is integrally provided with a guide protrusion 4 that cooperates with the waist-shaped limiting groove 5.

[0033] (2) Split structure, as shown in the attached document Figure 3 and attached Figure 4 As shown, specifically: a circular hole is formed on the side of the adjusting frame 2 near the positioning frame 1, and a positioning pin 6 is inserted into the circular hole. The positioning pin 6 is interference-fitted with the circular hole, and the round end of the positioning pin 6 protrudes from the surface of the adjusting frame 2 to form the guide protrusion 4. This design is not only easy to process, but also highly efficient to assemble and maintain.

[0034] As attached Figure 3 and attached Figure 5As shown, the tension adjustment assembly 3 includes a T-bolt 7 and a locking nut 8. The adjustment frame 2 has a T-shaped hole 9 that matches the T-bolt 7, and the positioning frame 1 has a slotted hole 10 for the threaded portion of the T-bolt 7 to pass through. The locking nut 8 is threaded onto the threaded portion of the T-bolt 7, and when the locking nut 8 is pressed against the positioning frame 1, the adjustment frame 2 is locked onto the positioning frame 1 by the T-bolt 7. By loosening or tightening the locking nut 8, the adjustment frame 2 can be switched between a freely adjustable state and a locked state, making operation very convenient.

[0035] The locking nut 8 is a wing nut. Using a wing nut as the locking nut 8 allows for manual operation without any auxiliary tools, making installation and disassembly very convenient and greatly improving assembly efficiency.

[0036] As attached Figure 3 and attached Figure 5 As shown, a flat washer 11 and a spring washer 12 are sandwiched between the locking nut 8 and the positioning frame 1. The combined use of the flat washer 11 and the spring washer 12 not only protects the surface of the positioning frame 1 from scratches or crushing, but also provides anti-loosening and anti-vibration effects, improving the stability of the adjusting frame 2 when locked onto the positioning frame 1.

[0037] As a priority, this embodiment provides two sets of tension adjustment components 3 and two sets of guide structures (the guide structures are composed of guide protrusions 4 and waist-shaped limiting grooves 5). The two sets of tension adjustment components 3 are set on the center line of the adjustment frame 2, and the two sets of guide structures are set on both sides of the center line of the adjustment frame 2, and the two sets of guide structures are symmetrically arranged on the left and right.

[0038] As attached Figure 1 and attached Figure 2 As shown, the positioning frame 1 is provided with at least two positioning slots 13 for engaging with the protruding parts of the ventilation cover 17. That is, the part of the positioning frame 1 corresponding to the positioning slots 13 can be directly set to a U-shape. The positioning and installation of the mounting frame is achieved by a snap-fit ​​engagement, making the installation operation very convenient.

[0039] As attached Figure 1 and attached Figure 2 As shown, the adjusting bracket 2 is provided with a positioning groove 14 for the wiper arm 15 to be inserted. That is, the part of the adjusting bracket 2 corresponding to the positioning groove 14 can be directly set to a U-shape. The wiper arm 15 is inserted into the positioning groove 14 on the adjusting bracket 2, thereby realizing the positioning of the wiper arm 15, and the positioning operation is very convenient.

[0040] It should be noted that: as attached Figure 1 As shown, the windshield 16 is connected to the ventilation cover 17, which has a horizontally extending strip-shaped protrusion.

[0041] The auxiliary installation principle of the wiper arm 15 positioning fixture is as follows: The installation and positioning methods of the left and right wiper arms 15 are the same. Taking the installation and positioning of one wiper arm 15 as an example, the joint hole of the wiper arm 15 is first inserted into the corresponding swing arm shaft 18, and the wiper blade of the wiper arm 15 is positioned on the positioning point of the windshield 16. Then, the positioning frame 1 of the positioning fixture is fixed, that is, the positioning slot 13 on the positioning frame 1 is positioned on the protruding part of the ventilation cover 17. The adjusting frame 2 is adjusted to a suitable position, and the positioning recess on the adjusting frame 2 is matched with the positioning of the wiper arm 15. After locking the adjusting frame 2 by locking the adjusting component, the fixing nut of the wiper arm 15 is tightened to complete the positioning and installation of the wiper arm 15.

[0042] Assembly principle of wiper arm 15 positioning fixture: Press two positioning pins 6 into the two round holes of positioning frame 1 respectively, then insert the round end of positioning pin 6 into the waist-shaped limiting groove 5 of positioning frame 1 (this limiting groove structure is made into a waist shape, and the distance can be adjusted), then connect with T-bolt 7, put in flat washer 11 and spring washer 12, and finally tighten the wing nut to connect the adjusting frame 2 to the positioning frame 1.

Claims

1. A quick-adjustable wiper arm positioning fixture for assisting in the installation of a wiper arm (15) onto a car, characterized in that: It includes a positioning frame (1) for positioning on a car, wherein at least one adjusting frame (2) for positioning a wiper arm (15) is movably disposed on the positioning frame (1), and the adjusting frame (2) is connected to the positioning frame (1) via a tension adjusting assembly (3), such that the adjusting frame (2) has a freely adjustable state that is movable relative to the positioning frame (1) and a locked state that is immovable relative to the positioning frame (1).

2. The quick-adjustable wiper arm positioning fixture according to claim 1, characterized in that: The adjustment frame (2) is provided with at least two guide protrusions (4), and the positioning frame (1) is provided with a number of waist-shaped limiting grooves (5) equal to the number of guide protrusions (4). The extension directions of the multiple waist-shaped limiting grooves (5) are parallel or coincident with each other, and the guide protrusions (4) are slidably disposed in the corresponding waist-shaped limiting grooves (5).

3. The quick-adjustable wiper arm positioning fixture according to claim 2, characterized in that: The adjusting frame (2) is provided with a positioning pin (6) on the side near the positioning frame (1), and the round end of the positioning pin (6) protrudes from the surface of the adjusting frame (2) to form the guide protrusion (4).

4. The quick-adjustable wiper arm positioning fixture according to claim 1, characterized in that: The tension adjustment assembly (3) includes a T-bolt (7) and a locking nut (8). The adjustment frame (2) has a T-shaped hole (9) that matches the T-bolt (7). The positioning frame (1) has a waist-shaped hole (10) for the threaded part of the T-bolt (7) to pass through. The locking nut (8) is threaded onto the threaded part of the T-bolt (7). When the locking nut (8) abuts against the positioning frame (1), the adjustment frame (2) is locked onto the positioning frame (1) by the T-bolt (7).

5. The quick-adjustable wiper arm positioning fixture according to claim 4, characterized in that: The locking nut (8) is a wing nut.

6. The quick-adjustable wiper arm positioning fixture according to claim 4, characterized in that: A flat washer (11) and a spring washer (12) are sandwiched between the locking nut (8) and the positioning frame (1).

7. The quick-adjustable wiper arm positioning fixture according to claim 1, characterized in that: The positioning frame (1) is provided with at least two positioning slots (13) for engaging with the protruding parts of the ventilation cover (17).

8. The quick-adjustable wiper arm positioning fixture according to claim 1, characterized in that: The adjustment bracket (2) is provided with a positioning groove (14) for the wiper arm (15) to be inserted.

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