Directional turn symmetry detection tool

Abstract

The utility model relates to a kind of direction handle symmetry detection tool, including movable base, setting up screw rod on base, the top of screw rod is equipped with the detection combination board with the adjustable relative position between base, detection combination board includes: horizontal backrest, perpendicular to screw rod and be penetrated by screw rod, vertical backrest, from horizontal backrest. The side of horizontal backrest, vertical backrest is connected. The utility model realizes the control of relative position with whole vehicle by the universal wheel of bottom;Error confirmation is carried out to direction handle by the backrest of screw rod upper portion, the relative positional relationship between direction handle and backrest is compared, and the conclusion whether direction handle symmetry is qualified is obtained.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle handlebar inspection fixture technology, and in particular to a handlebar symmetry inspection fixture. Background Technology

[0002] With the continuous development of electric vehicle manufacturing technology, the requirements for the precision and performance of vehicle components are becoming increasingly stringent. The steering wheel, as a key component ensuring driving safety and handling performance, directly affects the vehicle's driving performance and safety due to its symmetry.

[0003] Currently, the height and angle of the handlebars on different electric bicycles are inconsistent. The assembly methods are mostly either pendant type or bolt fastening type. These two assembly methods will cause problems such as the front and rear drop of the handlebars and height difference. In order to improve production efficiency and ensure product quality, it is particularly important to develop a tooling that can efficiently and accurately detect the symmetry of the handlebars of the whole vehicle. Utility Model Content

[0004] To address the shortcomings of existing production technologies, the applicant provides a tooling for detecting the symmetry of handlebars, suitable for detecting the symmetry of handlebars of electric vehicles of different specifications. It utilizes a physical measurement structure to replace the currently commonly used visual inspection method, thereby improving measurement accuracy.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A symmetrical detection fixture includes a movable base and a lead screw mounted on the base. The top of the lead screw has an adjustable detection assembly plate relative to the base. The detection assembly plate includes:

[0007] The horizontal support plate is perpendicular to the lead screw and is penetrated by the lead screw.

[0008] The vertical support plate extends from the horizontal support plate.

[0009] The sides of the horizontal and vertical backrests are connected.

[0010] As a further improvement to the above technical solution:

[0011] The connecting edge of the horizontal and vertical backrests forms a measuring right angle, and the measuring right angle of the vertical backrest extends upward.

[0012] A connecting column is provided at the midpoint of the horizontal support plate, and the axial height of the connecting column is greater than the thickness of the horizontal support plate; a threaded rod passes through the connecting column.

[0013] A locking nut is provided at the connecting post.

[0014] The base is equipped with a handwheel for driving the lead screw to reciprocate.

[0015] The base adopts a concave structure, and the concave part forms a space to accommodate the front structure of the vehicle to be inspected.

[0016] The base is equipped with casters.

[0017] The length of the test assembly plate is greater than the length of the direction handle.

[0018] The height of the vertical backrest is less than or equal to the width of the horizontal backrest.

[0019] The detection assembly plate is equipped with a level.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model provides an adjustable vehicle steering handle symmetry testing fixture. In use, the relative position with the vehicle is controlled by the universal wheels at the bottom. The upper and lower movement space is set by the lead screw, and the range of movement space falls within the national standard range for electric vehicles. Thus, the error can be confirmed by the scale plate installed on the upper part of the lead screw. By comparing the relative position relationship between the steering handle and the scale plate, the conclusion of whether the steering handle symmetry is qualified can be obtained.

[0022] The testing fixture provided in this application can perform testing from multiple angles (up, down, front, and back), solving the problems of defective products with front-to-back errors entering the market and safety hazards such as poor riding comfort and straight-line performance caused by vertical errors. Attached Figure Description

[0023] Figure 1 This is a three-dimensional view of the tooling used in this application.

[0024] Figure 2 This is the main view of the tooling used in this application.

[0025] Figure 3 This is a side view of the tooling.

[0026] The components include: 1. base; 2. lead screw; 3. detection assembly plate; 4. handwheel;

[0027] 301. Horizontal backing plate; 302. Vertical backing plate; 303. Connecting column; 304. Locking nut;

[0028] 101. Storage space; 102. Casters. Detailed Implementation

[0029] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0030] like Figures 1-3As shown, the symmetry detection fixture of this embodiment includes a movable base 1, a lead screw 2 disposed on the base 1, and a detection assembly plate 3 with an adjustable relative position to the base 1 on the top of the lead screw 2. The detection assembly plate 3 includes:

[0031] The horizontal support plate 301 is perpendicular to the lead screw 2 and is penetrated by the lead screw 2.

[0032] The vertical support plate 302 extends from the horizontal support plate 301.

[0033] The sides of the horizontal backing plate 301 and the vertical backing plate 302 are connected.

[0034] The connecting edge of the horizontal backing plate 301 and the vertical backing plate 302 forms a measuring right angle, and the measuring right angle of the vertical backing plate 302 extends upward.

[0035] A connecting column 303 is provided at the midpoint of the horizontal support plate 301. The axial height of the connecting column 303 is greater than the thickness of the horizontal support plate 301. The lead screw 2 passes through the connecting column 303.

[0036] A locking nut 304 is provided at the connecting post 303.

[0037] The base 1 is equipped with a handwheel 4 for driving the lead screw 2 to reciprocate.

[0038] The base 1 adopts a concave structure, and the concave part forms a space 101 for accommodating the front structure of the vehicle to be inspected.

[0039] The bottom of the base 1 is equipped with casters 102.

[0040] The length of the detection assembly plate 3 is greater than the length of the direction handle.

[0041] The height of the vertical backing plate 302 is less than or equal to the width of the horizontal backing plate 301.

[0042] A level is installed on the detection assembly plate 3.

[0043] The specific structure and working principle of this application are as follows:

[0044] This application provides a set of detection assembly plates 3 capable of detecting whether the height of both sides of the handlebars is consistent and whether the front and rear of both sides of the handlebars are consistent, and a base 1 with a lead screw 2 is provided below the detection assembly plate 3. The base 1 is used to support the detection assembly plate 3, and the base 1 can be easily moved by casters 102; the lead screw 2 is used to adjust the vertical height of the detection assembly plate 3 to accommodate electric vehicles of different specifications.

[0045] like Figures 1-3As shown, the base 1 of this application has a concave structure, and the receiving space 101 formed by the concavity is mainly used to avoid the position of the wheels at the front of the vehicle. The bent structure of the base 1 itself provides strength to support the detection assembly plate 3.

[0046] The base 1 is a sideways "U" shape, with two parallel plates at the bottom and top. A box is set on the top plate, and a handwheel 4 is set on the box. The lead screw 2 is vertically inserted into the box. A bevel gear pair is set inside the box. The handwheel 4 adjusts the torque transmission direction through the bevel gear pair, and transmits the torque to the lead screw 2, causing the lead screw 2 to rotate.

[0047] In one embodiment of this application, the lead screw 2 is a lifting structure, that is, the bevel gear pair in the housing drives the screw sleeve adapted to the lead screw 2 to rotate in place, thereby driving the lead screw 2 to rise and fall, and the lead screw 2 drives the detection assembly plate 3 on its top to rise and fall.

[0048] In a preferred embodiment, a cylindrical connecting post 303 is provided at the midpoint or center of gravity of the horizontal support plate 301 of the detection combination plate 3. The connecting post 303 is provided with a threaded hole, and the lead screw 2 is inserted into the threaded hole, so that the horizontal support plate 301 and the lead screw 2 can rotate relative to each other, so as to adjust the relative position between the detection combination plate 3 and the lead screw 2.

[0049] A locking nut 304 is provided above or below the connecting column 303 in the axial direction to facilitate the height detection of the combination plate 3.

[0050] The horizontal backplate 301 and the vertical backplate 302 are the main components for detecting the steering handle. By attaching the detection assembly plate 3, which forms a right-angle detection structure, to the steering handle, it is determined whether the front and back of the steering handle are coplanar and whether the top and bottom are coplanar. If they are not coplanar, adjustment is required.

[0051] As an optimized implementation plan, a commercially available level is installed on the horizontal support plate 301 to quickly detect the angle difference.

[0052] When using this tool, the operator pushes the electric vehicle into the bottom using the universal wheel 102, approaches the inside of the handlebar through manual intervention, and then adjusts the height to the lower part of the handlebar through the screw drive mechanism. The horizontal support plate 301 is used to observe whether the left and right heights of the handlebar are symmetrical, and the vertical support plate is used to observe whether the front and back of the handlebar are symmetrical. The error value is read through the scale on the support plate to achieve consistent symmetrical control of the electric vehicle handlebar.

[0053] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A directional symmetry detection fixture, characterized in that: Includes a movable base (1) and a lead screw (2) disposed on the base (1). The top of the lead screw (2) is provided with a detection assembly plate (3) whose relative position with respect to the base (1) is adjustable. The detection assembly plate (3) includes: The horizontal support plate (301) is perpendicular to the lead screw (2) and is penetrated by the lead screw (2). The vertical support plate (302) extends from the horizontal support plate (301). The sides of the horizontal backing plate (301) and the vertical backing plate (302) are connected.

2. The directional symmetry detection fixture as described in claim 1, characterized in that: The horizontal backrest (301) and the vertical backrest (302) form a measuring right angle at the connecting edge, and the vertical backrest (302) extends upward from the measuring right angle.

3. The directional symmetry detection fixture as described in claim 1, characterized in that: A connecting column (303) is provided at the midpoint of the horizontal support plate (301), and the axial height of the connecting column (303) is greater than the thickness of the horizontal support plate (301); the lead screw (2) passes through the connecting column (303).

4. The directional symmetry detection fixture as described in claim 3, characterized in that: A locking nut (304) is provided at the connecting post (303).

5. The directional symmetry detection fixture as described in claim 1, characterized in that: The base (1) is equipped with a handwheel (4) for driving the lead screw (2) to reciprocate.

6. The directional symmetry detection fixture as described in claim 1, characterized in that: The base (1) adopts a concave structure, and the concave part forms a space (101) for accommodating the front structure of the vehicle to be inspected.

7. The directional symmetry detection fixture as described in claim 6, characterized in that: The base (1) is equipped with casters (102) at the bottom.

8. The directional symmetry detection fixture as described in claim 1, characterized in that: The length of the detection assembly plate (3) is greater than the length of the direction handle.

9. The directional symmetry detection fixture as described in claim 8, characterized in that: The height of the vertical backing plate (302) is less than or equal to the width of the horizontal backing plate (301).

10. The directional symmetry detection fixture as described in claim 1, characterized in that: A level is installed on the detection assembly plate (3).

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