A high-precision all-direction single-curved-arc rod piece inspection jig

Abstract

The utility model discloses a kind of high-precision all-around single curved arc rod piece inspection fixtures, it is related to single curved arc rod piece inspection technical field, including wood and flatness block, the both ends of wood are provided with flatness block, and the side middle section of wood is connected and is installed with clamp holder, and the top of clamp holder is installed with clamp main body, the side surface of wood away from clamp holder is butt joint with arc rod piece, and the bottom of clamp holder is connected and is installed with base component. This high-precision all-around single curved arc rod piece inspection fixture, by this kind of innovative tooling, we can provide more flexibility and diversity for inspection work, ensure that the accuracy requirement of product in production process is satisfied. In addition, most components of the gauge are fixed by bolt connection, which greatly reduces the labor intensity of workers, solves the problem of their excessive workload. At the same time, this design also helps to reduce welding cost, thereby improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of single-curved arc rod inspection technology, specifically a high-precision all-round single-curved arc rod inspection fixture. Background Technology

[0002] In the production of medium and large-sized buses, curved frame components are an important part of the vehicle body frame. The vehicle body frame is a key structure that ensures the strength and rigidity of the vehicle body, and as a major component of the frame, the quality of the curved frame components directly affects the assembly quality and overall performance of the vehicle body. Curved frame components are easily affected by factors such as springback, mold, material, and plastic deformation during the forming process; therefore, controlling their manufacturing quality is particularly important.

[0003] In today's increasingly specialized and detailed industrial manufacturing sector, customized production models for buses, particularly bus frame manufacturers, involve a wide variety of body specifications and short production cycles. The varying batch sizes for each model further complicate matters, leading to ever-increasing precision requirements. Traditionally, curved components are inspected using calipers. However, caliper inspection cannot guarantee stability, flatness, or deformation. Furthermore, the calipers are typically quite long, and repeated use can cause deformation, making them unsuitable for the high-precision demands of curved component production. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision, all-around inspection fixture for single-curved arc rods to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-precision omnidirectional single-curved arc rod inspection fixture, comprising a substitute wood and a flatness clamping block. Flatness clamping blocks are provided at both ends of the substitute wood, and a clamping support is connected and installed on the middle section of one side of the substitute wood. A clamping body is installed on the top of the clamping support. The arc rod body is mated to the surface of the substitute wood away from the clamping support, and a base component is connected and installed at the bottom of the clamping support.

[0006] Furthermore, the substitute wood is manufactured using CNC machining technology, and the clamp support and clamp body are connected and combined by welding or bolting. The substitute wood, flatness block, clamp support, arc rod body and base components are all connected and combined by bolting.

[0007] Furthermore, the flatness check block is made of 8 mm thick steel plate and manufactured using Trumpf laser cutting technology. One end of the substitute wood is designed with a step as an end reference point. A 5 mm offset is set between the important dimension arc position of the arc member body and the arc position of the substitute wood to observe and detect the arc error of the arc member body.

[0008] Furthermore, the design of the flatness check block allows for accurate determination of the deviation by simply placing the main body of the arc member close to one side of the flatness check block and measuring with a height gauge. It is also used to quickly confirm whether the arc member is deformed or whether the flatness meets the predetermined requirements.

[0009] Furthermore, the substitute wood adopts a three-section structure, and the substitute wood itself is designed and manufactured in accordance with the structural dimensions and shape of the main body of the arc rod.

[0010] Furthermore, the substitute wood is symmetrically arranged on the front and rear sides of the main body of the arc rod, and the flatness clamp is symmetrically connected and installed at both ends of the main body of the arc rod through two sets of bolt structures. Moreover, the clamp support is connected and installed on the side of a set of substitute wood at the middle of the side through two sets of bolt structures on the side of the main body of the arc rod.

[0011] Furthermore, the base component includes a base, buffer columns, a stabilizing frame, and a docking seat. Buffer columns are vertically installed at the top of both ends of the base, and a stabilizing frame is horizontally connected to the upper end of the buffer columns. A docking seat is installed in the middle of the top of the stabilizing frame.

[0012] Furthermore, the docking seat has holes for bolt installation at each of the four opposite corners, and the docking seat is installed at the bottom center of the clamp support. The base has two sets of holes for bolt installation at each of the four opposite corners.

[0013] This utility model provides a high-precision, omnidirectional inspection fixture for single-curved arc rods, which has the following beneficial effects:

[0014] 1. This utility model, through the combined use of a substitute wood, a flatness clamping block, a clamp support, a clamp body, and an arc-shaped rod body, not only checks the precision of parts compared to conventional tooling, but also helps to inspect and correct the precision of tools and machines. It can also be used for self-inspection and spot checks, ensuring that workpieces meet the requirements of corresponding processes. Furthermore, it can be used to check workpiece precision, thus guaranteeing workpiece quality and performance, thereby ensuring product quality. Moreover, the raw material procurement cost of the substitute wood is relatively low compared to other tooling, especially compared to steel and aluminum, which reduces the overall procurement cost. In addition, the manufacturing cost is also lower, particularly in CNC machining, where the substitute wood offers higher manufacturing efficiency, less wear and tear on tools and equipment, and is suitable for tooling production with short delivery times. The substitute wood also has good machinability, is easy to cut, carve, and engrave, and is suitable for CNC machining, with short cycle times, improved production efficiency, flexibility, and ease of rework. It offers greater flexibility in rework and design changes, facilitating easy redoing and repairs, and enabling rapid response to design changes. This makes it suitable for manufacturing inspection fixtures requiring frequent modifications. The substitute wood possesses good strength, plasticity, and toughness, and is not easily deformed, making it suitable for high-precision fixture production. In particular, machined resin boards offer even better toughness, higher stability, and are more environmentally friendly, making them suitable for producing high-precision products. By combining substitute wood with steel, the versatility and flexibility of the inspection fixtures are ensured, thereby guaranteeing product quality and precision. Compared to traditional steel plates, substitute wood is less prone to scratches and rust. Furthermore, the production and use of substitute wood helps reduce reliance on traditional timber, thus alleviating deforestation pressure and contributing positively to environmental protection and sustainable development. Compared to modern technology, substitute wood exhibits better stability under different environmental conditions, is less susceptible to moisture deformation, is rust-resistant, and possesses certain flame-retardant properties, thereby improving safety in use.

[0015] 2. This utility model features a base component installed at the bottom of the clamp support. The base serves as the main support, and together with the buffer column, it effectively absorbs vibrations generated during the inspection process, reducing measurement errors caused by external factors and ensuring the accuracy of inspection data. A stabilizing frame is horizontally connected to the upper end of the buffer column, providing a stable support platform for the clamp support and further enhancing the overall structural stability. A docking seat is installed in the middle of the top of the stabilizing frame, with bolt holes at its four opposite corners for a tight and secure connection to the bottom of the clamp support. This design not only enhances the structural robustness but also facilitates subsequent disassembly and maintenance. Simultaneously, the two sets of bolt holes vertically located at the four opposite corners of the base facilitate the fixing of the base component to the workbench, ensuring the stability of the entire inspection fixture during the inspection process and thus improving the accuracy and reliability of the inspection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main body of a high-precision omnidirectional single-curved arc rod inspection fixture according to the present invention;

[0017] Figure 2 This is a schematic diagram of the main structure of the substitute wood and arc rod of the high-precision all-round single-curved arc rod inspection fixture of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the flatness clamping block of a high-precision omnidirectional single-curved arc rod inspection fixture of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the clamp support of a high-precision omnidirectional single-curved arc rod inspection fixture of the present invention.

[0020] Figure 5 This is a three-dimensional structural diagram of the clamp body of a high-precision omnidirectional single-curved arc rod inspection fixture of this utility model.

[0021] Figure 6 This is a three-dimensional structural diagram of the base component of a high-precision omnidirectional single-curved arc rod inspection fixture according to the present invention.

[0022] In the diagram: 1. Substitute wood; 2. Flatness block; 3. Clamp support; 4. Clamp body; 5. Arc rod body; 6. Base component; 601. Base; 602. Buffer column; 603. Stabilizer; 604. Connecting seat. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] like Figures 1 to 6As shown, a high-precision omnidirectional single-curved arc rod inspection fixture includes a substitute wood 1 and a flatness clamping block 2. Flatness clamping blocks 2 are provided at both ends of the substitute wood 1, and a clamp support 3 is connected and installed on the middle section of one side of the substitute wood 1. A clamp body 4 is installed on the top of the clamp support 3. The arc rod body 5 is mated to the surface of the substitute wood 1 away from the clamp support 3, and a base component 6 is connected and installed at the bottom of the clamp support 3. The substitute wood 1 is manufactured using CNC machining technology. The clamp support 3 and the clamp body 4 are connected and assembled by welding or bolting. The substitute wood 1, flatness clamping block 2, clamp support 3, arc rod body 5, and base component 6 are all connected and assembled by bolts. The substitute wood 1 is composed of three sections. The structure is designed and manufactured according to the structural dimensions and shape of the main body 5 of the arc rod. The substitute wood 1 is symmetrically arranged on the front and rear sides of the main body 5 of the arc rod. The flatness clamping block 2 is symmetrically connected and installed at both ends of the main body 5 of the arc rod through two sets of bolts. The clamp support 3 is connected and installed on the side of the substitute wood 1 near the main body 5 through two sets of bolts. By combining the substitute wood 1, the flatness clamping block 2, the clamp support 3, the clamp body 4, and the main body 5 of the arc rod, compared with conventional tooling, it can not only check the accuracy of parts, but also help to detect and correct the accuracy of tools and machines. At the same time, it can also be used for self-inspection and spot inspection, so that the workpiece can meet the requirements of the corresponding process.

[0025] like Figures 1 to 6As shown, the flatness check block 2 is made of 8 mm thick steel plate using Trumpf laser cutting technology. One end of the substitute wood 1 is designed with a step as an end reference point. A 5 mm offset is set between the important arc position of the arc body 5 and the arc position of the substitute wood 1 to observe and detect the arc error of the arc body 5. The design of the flatness check block 2 allows the arc body 5 to be placed close to one side of the flatness check block 2 and measured with a height gauge to accurately determine the deviation. This is used to quickly confirm whether the arc body 5 is deformed or whether the flatness meets the predetermined requirements. The base component 6 includes a base 601, a buffer column 602, a stabilizer 603, and a docking seat 604. The buffer columns 602 are vertically installed at the top of both ends of the base 601, and the stabilizer 603 is horizontally connected to the upper end of the buffer column 602. Furthermore, a docking seat 604 is installed in the middle of the top of the stabilizer 603. The docking seat 604 has holes for bolt installation at its four opposite corners. The docking seat 604 is installed in the middle of the bottom of the clamp support 3. The base 601 has two sets of holes for bolt installation at its four opposite corners. The base 601 serves as the main support, and together with the buffer column 602, it can effectively absorb the vibration generated during the inspection process and reduce measurement errors caused by external factors. The stabilizer 603 is horizontally connected to the upper end of the buffer column 602, providing a stable support platform for the clamp support 3 and further enhancing the stability of the overall structure. The docking seat 604 is installed in the middle of the top of the stabilizer 603, and has holes for bolt installation at its four opposite corners, which facilitates a tight and stable connection with the bottom of the clamp support 3.

[0026] In summary, as Figures 1 to 6 As shown, this high-precision all-around single-curved arc rod inspection fixture, when in use, firstly, through the bolt mounting holes vertically opened at the four diagonals of the base 601, the base component 6 is firmly fixed on the workbench, ensuring that the entire inspection fixture will not be displaced due to external vibration or operation during the inspection process. Then, the arc rod body 5 to be inspected is placed on the side of the substitute wood 1 away from the clamp support 3, and its position is adjusted so that the important dimension arc position of the arc rod body 5 is aligned with the preset step end reference point on the substitute wood 1. At the same time, the 5 mm offset between the two is used to make a preliminary observation of the arc error.

[0027] Next, the operator adjusts the clamp body 4 to a suitable position using the clamp support 3, and uses the clamping function of the clamp to fix the arc rod body 5, ensuring that it remains stable during the inspection process. At this time, taking advantage of the design features of the flatness check block 2, the height gauge is placed close to the side of the arc rod body 5 near the flatness check block 2. By reading the value on the height gauge, the deviation of the arc rod body 5 at this position can be accurately determined, thereby quickly determining whether the arc rod has deformation or whether the flatness meets the predetermined requirements.

[0028] During the inspection process, if the main body 5 of the arc rod is found to have deviations that do not meet the requirements, the operator can make fine adjustments or rework it according to the actual situation. Since the substitute wood 1 has good processing performance and flexibility, this design is particularly suitable for the production of inspection tools that require frequent modifications. At the same time, the material selection of the substitute wood 1 combined with steel not only ensures the diversity and flexibility of the inspection tool in the inspection process, but also improves the quality and accuracy of the product.

[0029] Furthermore, the buffer column 602 in the base component 6 plays an important role in absorbing vibration and reducing measurement errors during the inspection process, while the stabilizer 603 provides a stable support platform for the clamp support 3, further enhancing the overall structural stability. The tight connection between the docking seat 604 and the bottom of the clamp support 3 not only enhances the structural robustness but also facilitates subsequent disassembly and maintenance.

[0030] The entire device, through its three-sided fixed support design, effectively ensures the overall flatness of the tooling, thereby significantly expanding the inspection scope. During measurement, the specific location of the problem can be displayed very intuitively, enabling precise adjustments and corrections to specific locations where the curvature accuracy or flatness fails to meet the standard requirements. In contrast, traditional clamps can only make basic judgments on curvature, and cannot meet the needs for precise detection of flatness and curvature deformation.

[0031] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A high-precision omnidirectional single-curved arc rod inspection fixture, comprising a substitute (1) and a flatness clamping block (2), characterized in that: Both ends of the substitute wood (1) are provided with flatness blocks (2), and a clamp support (3) is connected and installed in the middle section of one side of the substitute wood (1). A clamp body (4) is installed on the top of the clamp support (3). An arc rod body (5) is connected to the surface of the substitute wood (1) away from the clamp support (3), and a base component (6) is connected and installed at the bottom of the clamp support (3).

2. The high-precision omnidirectional single-curved arc rod inspection fixture according to claim 1, characterized in that, The substitute wood (1) is manufactured using CNC machining technology. The clamp support (3) and the clamp body (4) are connected and combined by welding or bolt fixing. The substitute wood (1), the flatness block (2), the clamp support (3), the arc rod body (5) and the base component (6) are all connected and combined by bolt structure.

3. The high-precision omnidirectional single-curved arc rod inspection fixture according to claim 1, characterized in that, The flatness block (2) is made of 8 mm thick steel plate and is made using Trumpf laser cutting technology. One end of the substitute wood (1) is designed with a step as the end reference point. A 5 mm offset is set between the important dimension arc position of the arc member body (5) and the arc position of the substitute wood (1) to observe and detect the arc error of the arc member body (5).

4. The high-precision omnidirectional single-curved arc rod inspection fixture according to claim 1, characterized in that, The design of the flatness check block (2) allows the body of the arc rod (5) to be placed close to one side of the flatness check block (2) and measured with a height gauge to accurately determine the deviation. It is also used to quickly confirm whether the body of the arc rod (5) is deformed or whether the flatness meets the predetermined requirements.

5. A high-precision omnidirectional single-curved arc rod inspection fixture according to claim 1, characterized in that, The substitute wood (1) adopts a three-section structure, and the substitute wood (1) itself is designed and manufactured in accordance with the structural dimensions and shape of the main body (5) of the arc rod.

6. A high-precision omnidirectional single-curved arc rod inspection fixture according to claim 1, characterized in that, The substitute wood (1) is symmetrically arranged on the front and rear sides of the arc rod body (5), and the flatness block (2) is symmetrically connected and installed at both ends of the arc rod body (5) by two sets of bolts. Moreover, the clamp support (3) is connected and installed on the side of a set of substitute wood (1) near the arc rod body (5) by two sets of bolts.

7. A high-precision omnidirectional single-curved arc rod inspection fixture according to claim 1, characterized in that, The base component (6) includes a base (601), a buffer column (602), a stabilizer (603), and a docking seat (604). The buffer column (602) is vertically installed at the top of both ends of the base (601), and the stabilizer (603) is horizontally connected to the upper end of the buffer column (602). The docking seat (604) is installed in the middle of the top of the stabilizer (603).

8. A high-precision omnidirectional single-curved arc rod inspection fixture according to claim 7, characterized in that, The docking seat (604) has holes for bolt installation at each of its four opposite corners, and the docking seat (604) is installed at the bottom center of the clamp support (3). The base (601) has two sets of holes for bolt installation at each of its four opposite corners.

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