Fixing device and system for electric power steering calibration on vehicle production line

Abstract

The utility model discloses a fixing device and a fixing system for electric power steering calibration on a vehicle production line, the fixing device comprises a fixing block, one side surface of the fixing block is an arc surface, one end of the arc surface is tended to be connected with one end of the bottom surface of the fixing block, the joint of the arc surface and the bottom surface tends to be an insertion part, the insertion part is wedge-shaped, and the insertion part is provided with an insertion hole; when the electric power steering is calibrated, the insertion part is suitable for being inserted between the tire and the ground so as to fix the tire. The fixing device can fix the wheels of the vehicle before the vehicle leaves a factory and when the vehicle is subjected to electric power steering calibration on a production line, so that the vehicle is prevented from moving, the stability of the vehicle during calibration is ensured, the personal injury to operators is avoided, and the calibration safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a fixing device for electric power steering calibration on a vehicle production line, and a fixing system for electric power steering calibration on a vehicle production line. Background Art

[0002] In related technologies, before a vehicle leaves the factory, it is necessary to turn the steering wheel for calibration when calibrating the electric power steering on the production line. At this time, the handbrake cable is not installed and the vehicle cannot brake. Due to line stops and line routing on the production line, the vehicle will deviate on the conveyor belt when the steering wheel is turned. At the same time, gear learning is required on the production line, involving reverse gear learning. The vehicle may be at risk of driving backwards, and displacement of the vehicle cannot be avoided, which may cause personal injury to the operator. Calibration safety on the production line is relatively low. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of the present invention is to provide a device for securing the electric power steering calibration on a vehicle production line. This device can secure the vehicle's wheels during electric power steering calibration on the production line before the vehicle leaves the factory, preventing vehicle displacement, ensuring vehicle stability during calibration, and preventing personal injury to the operator, thereby improving calibration safety.

[0004] The second purpose of the utility model is to provide a fixed system for calibrating electric power steering on a vehicle production line.

[0005] In order to solve the above problems, an embodiment of the first aspect of the present invention provides a fixing device for calibrating electric power steering on a vehicle production line, including: a fixing block, one side surface of the fixing block is an arc surface, one end of the arc surface is connected to one end of the bottom surface of the fixing block, and the connection point between the arc surface and the bottom surface is constructed as an insertion portion, and the insertion portion is wedge-shaped. When calibrating the electric power steering, the insertion portion is suitable for being inserted between the tire and the ground to fix the tire.

[0006] According to the fixing device for calibrating the electric power steering on a vehicle production line in an embodiment of the utility model, before the vehicle leaves the factory, when the electric power steering is calibrated on the vehicle on the production line, the vehicle wheels are fixed by fixing blocks to prevent the vehicle from displacement, ensure the stability of the vehicle during calibration, avoid personal injury to the operator, and improve the safety of calibration.

[0007] In some embodiments, the curvature of the arc to which the curved surface belongs is greater than the curvature of the arc of the tire.

[0008] In some embodiments, an anti-slip structure is formed on the bottom surface of the fixing block.

[0009] In some embodiments, the fixing block is triangular in shape, and includes a triangular portion, and the triangular portion is integrally connected to the insertion portion.

[0010] In some embodiments, the triangular portion is formed by a plurality of cylinders arranged in an array and fixedly connected, the axial direction of the cylinders being the direction from the bottom surface to the arc surface, one ends of the plurality of cylinders being flush in the axial direction to form the bottom surface, the array having the direction from one end of the arc surface to the other end of the arc surface as the row direction, the axial heights of the plurality of cylinders in each row of the array gradually increasing to form the arc surface, and in the column direction of the array perpendicular to the axial direction, the axial heights of the plurality of cylinders in each column are the same, and a column of cylinders at the other end of the arc surface is arranged as the other side surface of the fixed block.

[0011] In some embodiments, the fixing device further includes at least one of the following: a handle, which is provided on the fixing block and located on the other side of the fixing block; a connecting portion, which is provided on the fixing block and located on the other side of the fixing block, and a connecting hole is configured on the connecting portion.

[0012] A second aspect of the present invention provides a fixing system for calibrating electric power steering on a vehicle production line, comprising: a plurality of fixing devices as described in the above embodiments; a connecting structure for connecting at least two of the fixing devices to fix the vehicle during electric power steering calibration.

[0013] According to the fixing system for calibrating the electric power steering on a vehicle production line in an embodiment of the utility model, before the vehicle leaves the factory, when the electric power steering is calibrated on the vehicle on the production line, the vehicle wheels are fixed by multiple fixing devices, and the fixing devices are connected by a connecting structure to avoid displacement of the vehicle, ensure the stability of the vehicle during calibration, avoid personal injury to the operator, and improve the safety of calibration.

[0014] In some embodiments, the fixing system includes: a first fixing device, a second fixing device, a third fixing device and a fourth fixing device, wherein, during the electric power steering calibration, the first fixing device and the second fixing device are suitable for fixing the first tire of the two tires of the first drive axle of the vehicle, and the first fixing device and the second fixing device are suitable for being arranged in front of and behind the first tire, and the third fixing device and the fourth fixing device are suitable for fixing the second tire of the two tires of the first drive axle, and the third fixing device and the fourth fixing device are suitable for being arranged in front of and behind the second tire; a fifth fixing device, a sixth fixing device, a seventh fixing device and an eighth fixing device, wherein, during the electric power steering calibration, the fifth fixing device and the sixth fixing device are suitable for fixing the third tire of the two tires of the second drive axle of the vehicle, and the fifth fixing device and the sixth fixing device are arranged in front of and behind the third tire, and the seventh fixing device and the eighth fixing device are suitable for fixing the fourth tire of the two tires of the second drive axle, and the seventh fixing device and the eighth fixing device are arranged in front of and behind the fourth tire.

[0015] In some embodiments, the connecting structure includes: a first left and right connecting rod, wherein the first end of the first left and right connecting rod is connected to the connecting portion of the second fixing device, the second fixing device is located behind the first tire, the second end of the first left and right connecting rod is connected to the connecting portion of the fifth fixing device, and the fifth fixing device is located in front of the third tire; a second left and right connecting rod, wherein the first end of the second left and right connecting rod is connected to the connecting portion of the fourth fixing device, the fourth fixing device is located behind the second tire, the second end of the second left and right connecting rod is connected to the connecting portion of the seventh fixing device, and the seventh fixing device is located in front of the fourth tire.

[0016] In some embodiments, a first fixing portion and a second fixing portion are provided on the first left and right connecting rod, and the first fixing portion and the second fixing portion are arranged at intervals along the length direction of the first left and right connecting rod; a third fixing portion and a fourth fixing portion are provided on the second left and right connecting rod, and the third fixing portion and the fourth fixing portion are arranged at intervals along the length direction of the second left and right connecting rod; the connecting structure also includes: a first front-to-back connecting rod, a first end of the first front-to-back connecting rod is fixedly connected to the first left and right connecting rod through the first fixing portion, and a second end of the first front-to-back connecting rod is fixedly connected to the second left and right connecting rod through the third fixing portion; a second front-to-back connecting rod, a first end of the second front-to-back connecting rod is fixedly connected to the first left and right connecting rod through the second fixing portion, and a second end of the second front-to-back connecting rod is fixedly connected to the second left and right connecting rod through the fourth fixing portion.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 is a schematic diagram of a fixing device according to one embodiment of the present utility model;

[0020] Figure 2 is a schematic diagram of a fixing device structure according to an embodiment of the present utility model;

[0021] Figure 3 Schematic diagram of a fixing system according to one embodiment of the present invention.

[0022] Reference numerals:

[0023] Fixing system 200;

[0024] Fixing device 100; connecting structure 300;

[0025] Fixed block 110; insertion portion 101; triangular portion 102; handle 103; connecting portion 104; first fixing device 201; second fixing device 202; third fixing device 203; fourth fixing device 204; fifth fixing device 205; sixth fixing device 206; seventh fixing device 207; eighth fixing device 208; first left and right connecting rod 210; second left and right connecting rod 220; first fixing portion 211; second fixing portion 212; third fixing portion 221; fourth fixing portion 222; first front and rear connecting rod 230; second front and rear connecting rod 240. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0027] A first embodiment of the utility model provides a fixing device for calibrating the electric power steering on a vehicle production line. The fixing device can fix the vehicle wheels when the electric power steering is calibrated on the vehicle on the production line before the vehicle leaves the factory, thereby preventing the vehicle from displacement, ensuring the stability of the vehicle during calibration, avoiding personal injury to the operator, and improving the safety of calibration.

[0028] like Figure 1 As shown, the fixing device 100 includes a fixing block 110 .

[0029] Among them, one side surface of the fixing block 110 is an arc surface, one end of the arc surface is connected to one end of the bottom surface of the fixing block 110, and the connection point between the arc surface and the bottom surface is constructed as an insertion part 101. The insertion part 101 is wedge-shaped. When calibrating the electric power steering, the insertion part 101 is suitable for being inserted between the tire and the ground to fix the tire.

[0030] Specifically, before the vehicle leaves the factory, when the electric power steering is calibrated on the production line, in order to prevent the vehicle from moving, two fixing blocks 110 are set on both sides of the tire, one in front and one behind. The insertion part 101 of each fixing block 110 is inserted between the tire and the ground, so that the fixing block 110 fits the tire and fixes the tire to prevent the vehicle from moving during the calibration process.

[0031] According to the fixing device for calibrating the electric power steering on a vehicle production line in an embodiment of the utility model, before the vehicle leaves the factory, when the electric power steering is calibrated on the vehicle on the production line, the vehicle wheels are fixed by fixing blocks to prevent the vehicle from displacement, ensure the stability of the vehicle during calibration, avoid personal injury to the operator, and improve the safety of calibration.

[0032] In some embodiments, the curvature of the arc to which the curved surface belongs is greater than the curvature of the arc of the tire.

[0033] Specifically, the arc of the arc surface of the fixing block 110 is slightly larger than the arc of the tire. When the insertion portion 101 of the fixing block 110 is inserted between the tire and the ground, it ensures that the fixing block 110 fits the tire to the maximum extent.

[0034] In some embodiments, an anti-slip structure is formed on the bottom surface of the fixing block 110 .

[0035] Specifically, an anti-skid structure is formed on the bottom surface of the fixing block 110. By designing the anti-skid pattern, the friction is increased so that when the vehicle is displaced, the fixing block 110 can limit the displacement of the vehicle and ensure safety during calibration.

[0036] In some embodiments, the fixing block 110 is triangular in shape and includes a triangular portion 102 . The triangular portion 102 is integrally connected to the inserting portion 101 .

[0037] Specifically, if Figure 1 As shown, the fixing block 110 is triangular in shape as a whole, with one side being an arc surface that fits the wheel. The overall triangular shape increases the structural stability of the fixing block 110. The triangular portion 102 is connected to the insertion portion 101, and the insertion portion 101 is inserted between the tire and the ground to fix the tire. The triangular portion 102 provides support for the fixing block 110.

[0038] In some embodiments, the triangular portion is formed by a plurality of cylinders arranged in an array and fixedly connected, the axial direction of the cylinder is the direction from the bottom surface to the arc surface, and one end of the plurality of cylinders is flush in the axial direction to form the bottom surface, and the array has a row direction from one end of the arc surface to the other end of the arc surface. The axial height of the plurality of cylinders in each row of the array gradually increases to form the arc surface, and in the column direction of the array perpendicular to the axial direction, the axial height of the plurality of cylinders in each column is the same, and a row of cylinders at the other end of the arc surface is arranged as the other side surface of the fixed block.

[0039] Specifically, the triangular portion 102 of the fixing block 110 is formed by a plurality of cylinders arranged in an array and fixedly connected. Since the cylinders are hollow structures, the weight of the fixing block 100 can be reduced, making it easier for users to install. Figure 2 As shown, one end of the cylinder is flush to form a bottom surface, and in the row direction from one end of the arc surface to the other end of the arc surface, the axial heights of the multiple cylinders gradually increase to form an arc surface, and the column direction is perpendicular to the axial direction. The axial heights of the multiple cylinders in each column are the same, and the cylinders are arranged from one side surface of the fixed block 110 to the other side surface to form the whole of the triangular portion 102.

[0040] In some embodiments, as Figure 1 As shown, the fixing device 100 further includes at least one of a handle 103 and a connecting portion 104 .

[0041] The handle 103 is provided on the fixing block 110 and is located on another side surface of the fixing block 110 ; the connecting portion 104 is provided on the fixing block 110 and is located on another side surface of the fixing block 110 , and a connecting hole is configured on the connecting portion 104 .

[0042] Specifically, a handle 103 is provided on the fixing block 110 to facilitate the user to move the fixing device 100 when fixing the wheel; since multiple wheels need to be fixed when fixing the wheel, the front and rear fixing blocks 110 are fixed by the connecting portion 104 provided on the fixing block 110. When fixing the front and rear fixing blocks 110, the connecting structure is connected through the connecting hole to ensure the stability of the front and rear fixing blocks 110.

[0043] The second embodiment of the present invention provides a fixed system for calibrating electric power steering on a vehicle production line, such as Figure 3 As shown, the fixing system 200 includes a plurality of fixing devices and a connecting structure 300 .

[0044] The connection structure 300 is used to connect at least two fixing devices to fix the vehicle during the electric power steering calibration.

[0045] Specifically, the vehicle in the utility model can be a heavy truck, and the driving form of the heavy truck can be divided into 4x2, 6x2, etc. 4x2 heavy truck means that the vehicle has four wheels in total, of which two are driving wheels, and this driving form is very common in four-wheel trucks running on the road, wherein the front axle is a support steering axle, and the rear axle is a driving axle. 6x2 heavy truck means that the vehicle has six wheels in total, of which two are driving wheels, and the utility model takes 6x2 driving form as an example: this vehicle belongs to a three-axle vehicle, one front axle plus two rear axles, the front axle is a steering axle, and the rear axle is a driving axle. When calibrating the electric power steering, the front steering wheel is not fixed, and the wheels at the rear of the vehicle are fixed to avoid damage to the steering machine caused by fixing the steering wheel. Since there are four wheels at the rear of the vehicle, the fixing device at the front and rear two wheels is connected through the connecting structure to fix the vehicle during the calibration of the electric power steering.

[0046] According to the fixing system for calibrating the electric power steering of the vehicle on the production line provided in the utility model, when calibrating the electric power steering of the vehicle on the production line before the vehicle is delivered, the wheels of the vehicle are fixed through the plurality of fixing devices, and the fixing devices are connected through the connecting structure, so that displacement of the vehicle is avoided, the stability of the vehicle during calibration is ensured, personal injury to the operator is avoided, and the calibration safety is improved.

[0047] In some embodiments, as shown in Figure 3 The fixing system 200 includes a first fixing device 201, a second fixing device 202, a third fixing device 203, and a fourth fixing device 204.

[0048] Specifically, during the calibration of the electric power steering, the first fixing device 201 and the second fixing device 202 are adapted to fix a first tire of two tires of a first driving axle of the vehicle, the first fixing device 201 and the second fixing device 202 are adapted to be arranged in front of and behind the first tire, the third fixing device 203 and the fourth fixing device 204 are adapted to fix a second tire of the two tires of the first driving axle, and the third fixing device 203 and the fourth fixing device 204 are adapted to be arranged in front of and behind the second tire.

[0049] As shown in Figure 3 The fixing system 200 further includes a fifth fixing device 205, a sixth fixing device 206, a seventh fixing device 207, and an eighth fixing device 208.

[0050] During electric power steering assist calibration, the fifth fixing device 205 and the sixth fixing device 206 are suitable for fixing the third tire of the two tires of the second drive axle of the vehicle, and the fifth fixing device 205 and the sixth fixing device 206 are arranged in front of and behind the third tire. The seventh fixing device 207 and the eighth fixing device 208 are suitable for fixing the fourth tire of the two tires of the second drive axle, and the seventh fixing device 207 and the eighth fixing device 208 are arranged in front of and behind the fourth tire.

[0051] In some embodiments, as Figure 3 As shown, the connection structure 300 includes: a first left and right connection rod 210 and a second left and right connection rod 220 .

[0052] Specifically, the first end of the first left-right connecting rod 210 is connected to the connecting part of the second fixing device 202, and the second fixing device 202 is located behind the first tire. The second end of the first left-right connecting rod 210 is connected to the connecting part of the fifth fixing device 205, and the fifth fixing device 205 is located in front of the third tire; the first end of the second left-right connecting rod 220 is connected to the connecting part of the fourth fixing device 204, and the fourth fixing device 204 is located behind the second tire. The second end of the second left-right connecting rod 220 is connected to the connecting part of the seventh fixing device 207, and the seventh fixing device 207 is located in front of the fourth tire.

[0053] During calibration, the first tire can be fixed first by the first fixing device 201 and the second fixing device 202, and then the second tire can be fixed by the third fixing device 203 and the fourth fixing device 204. After the two tires of the first drive axle are fixed, the third tire can be fixed by the fifth fixing device 205 and the sixth fixing device 206, and the fourth tire can be fixed by the seventh fixing device 207 and the eighth fixing device 208. After all tires are fixed, the fixing devices are connected by the first left and right connecting rods 210 and the second left and right connecting rods 220. When the vehicle moves, resistance can be provided to ensure the stability of the fixing system 200.

[0054] In some embodiments, as Figure 3 As shown, the first left-right connecting rod 210 is provided with a first fixing portion 211 and a second fixing portion 212 ; the second left-right connecting rod 220 is provided with a third fixing portion 221 and a fourth fixing portion 222 .

[0055] The first fixing portion 211 and the second fixing portion 212 are arranged at intervals along the length direction of the first left and right connecting rods 210 ; the third fixing portion 221 and the fourth fixing portion 222 are arranged at intervals along the length direction of the second left and right connecting rods 220 .

[0056] like Figure 3As shown, the connection structure 300 further includes: a first front-rear connection rod 230 and a second front-rear connection rod 240 .

[0057] Among them, the first end of the first front-to-rear connecting rod 230 is fixedly connected to the first left-to-right connecting rod 210 through the first fixing part 211, and the second end of the first front-to-rear connecting rod 230 is fixedly connected to the second left-to-right connecting rod 220 through the third fixing part 221; the first end of the second front-to-rear connecting rod 240 is fixedly connected to the first left-to-right connecting rod 210 through the second fixing part 212, and the second end of the second front-to-rear connecting rod 240 is fixedly connected to the second left-to-right connecting rod 220 through the fourth fixing part 222.

[0058] Specifically, after all tires are fixed during calibration, the fixing device is connected through the first left and right connecting rods 210 and the second left and right connecting rods 220, and the first left and right connecting rods 210 and the second left and right connecting rods 220 are fixed through the first front and rear connecting rods 230 and the second front and rear connecting rods 240. When the vehicle moves, the fixing device 100 and the connecting structure 300 in the fixing system 200 are jointly subjected to force, thereby ensuring the stability of the fixing system 200 and avoiding accidents caused by vehicle movement.

[0059] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0060] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A fixture for calibrating electric power steering on a vehicle production line, characterized in that: include: A fixing block, wherein one side surface of the fixing block is an arc surface, one end of the arc surface is connected to one end of the bottom surface of the fixing block, and the connection between the arc surface and the bottom surface is constructed as an insertion portion, and the insertion portion is wedge-shaped. When calibrating the electric power steering, the insertion portion is suitable for being inserted between the tire and the ground to fix the tire.

2. The fixing device according to claim 1, characterized in that The curvature of the arc to which the arc surface belongs is greater than the curvature of the arc of the tire.

3. The fixing device according to claim 1, characterized in that An anti-slip structure is formed on the bottom surface of the fixing block.

4. The fixing device according to any one of claims 1 to 3, characterized in that: The fixing block is triangular in shape and includes a triangular portion, wherein the triangular portion is integrally connected to the inserting portion.

5. The fixing device according to claim 4, characterized in that The triangular portion is formed by a plurality of cylinders arranged in an array and fixedly connected. The axial direction of the cylinder is the direction from the bottom surface to the arc surface. In the axial direction, one ends of the plurality of cylinders are flush to form the bottom surface. The array has a row direction from one end of the arc surface to the other end of the arc surface. The axial heights of the plurality of cylinders in each row of the array gradually increase to form the arc surface. In the column direction of the array perpendicular to the axial direction, the axial heights of the plurality of cylinders in each column are the same. The column of cylinders at the other end of the arc surface is arranged as the other side surface of the fixed block.

6. The fixing device according to claim 4, characterized in that The fixing device further comprises at least one of the following: a handle, the handle being provided on the fixing block and being located on another side surface of the fixing block; The connecting portion is provided on the fixing block and is located on the other side of the fixing block. The connecting portion is provided with a connecting hole.

7. A fixed system for electric power steering calibration on a vehicle production line, characterized in that: include: A plurality of fixing devices according to any one of claims 1 to 6; A connecting structure is used to connect at least two of the fixing devices to fix the vehicle during electric power steering calibration.

8. The fixing system according to claim 7, characterized in that The fixing system comprises: a first fixing device, a second fixing device, a third fixing device, and a fourth fixing device, wherein, during the electric power steering assist calibration, the first fixing device and the second fixing device are adapted to fix a first tire of two tires of a first drive axle of the vehicle, and the first fixing device and the second fixing device are adapted to be arranged in front of and behind the first tire, and the third fixing device and the fourth fixing device are adapted to fix a second tire of the two tires of the first drive axle, and the third fixing device and the fourth fixing device are adapted to be arranged in front of and behind the second tire; The fifth fixing device, the sixth fixing device, the seventh fixing device and the eighth fixing device, wherein, during the electric power steering assist calibration, the fifth fixing device and the sixth fixing device are suitable for fixing the third tire of the two tires of the second drive axle of the vehicle, and the fifth fixing device and the sixth fixing device are arranged in front and behind the third tire; the seventh fixing device and the eighth fixing device are suitable for fixing the fourth tire of the two tires of the second drive axle, and the seventh fixing device and the eighth fixing device are arranged in front and behind the fourth tire.

9. The fixing system according to claim 8, characterized in that The connection structure includes: a first left-right connecting rod, wherein a first end of the first left-right connecting rod is connected to a connecting portion of the second fixing device, the second fixing device is located behind the first tire, and a second end of the first left-right connecting rod is connected to a connecting portion of the fifth fixing device, the fifth fixing device is located in front of the third tire; A second left-right connecting rod, wherein the first end of the second left-right connecting rod is connected to the connecting portion of the fourth fixing device, the fourth fixing device is located behind the second tire, and the second end of the second left-right connecting rod is connected to the connecting portion of the seventh fixing device, the seventh fixing device is located in front of the fourth tire.

10. The fixing system according to claim 9, characterized in that The first left and right connecting rods are provided with a first fixing portion and a second fixing portion, and the first fixing portion and the second fixing portion are arranged at intervals along the length direction of the first left and right connecting rods; The second left and right connecting rods are provided with a third fixing portion and a fourth fixing portion, and the third fixing portion and the fourth fixing portion are arranged at intervals along the length direction of the second left and right connecting rods; The connection structure further includes: a first front-to-rear connecting rod, wherein a first end of the first front-to-rear connecting rod is fixedly connected to the first left-to-right connecting rod via the first fixing portion, and a second end of the first front-to-rear connecting rod is fixedly connected to the second left-to-right connecting rod via the third fixing portion; A second front-to-rear connecting rod, wherein the first end of the second front-to-rear connecting rod is fixedly connected to the first left-to-right connecting rod through the second fixing portion, and the second end of the second front-to-rear connecting rod is fixedly connected to the second left-to-right connecting rod through the fourth fixing portion.

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