A new flexible measuring support

Abstract

The application discloses a new flexible measuring support. The sheet metal product after sheet metal stamping and welding of a vehicle in China needs to be measured by a gauge, and the new flexible measuring support is one of vehicle gauges. The structure of the new flexible measuring support is that a hard treated aluminum plate is used as a reference plate; the up-down and left-right movement and 360-degree rotation of the new flexible measuring support are realized through telescopic rods and rotary joints, and the new flexible measuring support can be said to be omnibearing adjustment; the positioning and clamping of the new flexible measuring support are respectively realized through a positioning ball, a positioning pin and a flange clamp. In use, the RPS point on a product is generally used as a reference, and then the RPS point is embodied on a 3D digital model, finally, the flexible measuring support is placed according to the state of the flexible measuring support on the 3D digital model, so that the sheet metal is fixed to realize measurement. The bearing of a single group of the new flexible measuring support is not less than 30 Kg, and the biggest advantage of the new flexible measuring support is that the previous independent measuring frame for each sheet metal can be combined into a flexible measuring body required by various sheet metals. The application greatly reduces the cost caused by sheet metal measurement, changes the structure, guarantees the quality, and improves the appearance.

Description

Technical Field

[0001] This invention is a positioning and measuring fixture that adapts to the shape of sheet metal. It can be used for parts that require conformal positioning and have moderate weight. Background Technology

[0002] With the rapid development of the automotive industry, China, as an emerging automotive powerhouse, became the world's largest automobile producer and the largest new car market in 2018, and its car ownership has also expanded rapidly in recent years. A recent forecast report from a German automotive market research institution states that by 2025, Asia will have one-quarter of the world's cars, or 280 million vehicles. China's market growth potential is enormous. It's clear that the growth rate of my country's car ownership is astonishing. At this rate, by 2025, my country's total car demand will surpass Japan, making it the world's second-largest consumer market. The positive development momentum and prospects of China's automotive market are recognized and valued by countries around the world.

[0003] As the world's largest automobile producer, China prioritizes vehicle quality above all else. For a company to grow and thrive, it must enhance its innovation potential while simultaneously striving to improve product quality and service levels. Looking at companies both domestically and internationally, every long-lasting and renowned enterprise owes its success to superior product and service quality. Therefore, quality is the lifeblood and soul of a company. Any enterprise seeking survival and development must relentlessly dedicate itself to improving product quality, continuously innovating and surpassing its limits, and pursuing ever higher goals. Only through relentless pursuit and continuous improvement can a company achieve industry leadership.

[0004] In the automobile production process, how can the quality of stamped sheet metal and the overall welding quality be guaranteed? We are constantly thinking about this, continuously introducing and integrating advanced technologies, and at the same time improving the quality of automotive quality inspection tools. We are constantly innovating, hoping to use the simplest method to replace various automotive sheet metal inspection tools, and thus, through our continuous efforts, we developed this invention.

[0005] Currently, there are many types of automotive inspection tools, but almost all of them are single-use tools. Each sheet metal or welded assembly for each car model requires its own corresponding inspection tool, and once a new model is developed, these tools have to be scrapped. Even if some standard parts can be recycled, they need to be refurbished. In traditional single-part inspection tools, each sheet metal piece requires its corresponding body, and each body requires extremely high processing costs. The process, including material preparation, pre-processing preparation, first and second painting, and assembly, requires a large number of workers, is time-consuming and labor-intensive, and has a complex and long cycle. While current hole-type profile inspection tools have improved the overall process, their price and structure have also increased. For hole-type profiles with a length of 1.5 meters or less, the price is around 1500 per meter; however, for lengths exceeding 1.5 meters, the processing difficulty increases significantly, and the price rises accordingly. A simple rear door inner panel, even with its bare frame, is 12 meters long. Adding wheels, positioning surfaces, positioning pins, adapter blocks, etc., its price is significantly higher than traditional inspection fixtures. Moreover, assembling a simple frame requires 2-3 people and about 3 days. Therefore, improving the cost-effectiveness of automotive inspection fixtures is urgently needed. Summary of the Invention

[0006] To overcome the aforementioned technical problems, the present invention aims to provide a novel flexible measuring bracket, improve automotive inspection fixtures, increase the reusability of inspection fixtures, achieve complex changes in automotive sheet metal with relatively simple tooling, and be applicable to more complex environments.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] The new flexible measurement bracket is achieved by combining multiple individual flexible measurement brackets with a sandwich work platform. The sandwich work platform includes: a base plate; leveling feet at the four corners; two omnidirectional wheels and two directional wheels placed in a non-interfering location next to the leveling feet; forklift slots pre-planned according to customer requirements before welding the base plate; reference balls placed at the four corners of the upper part of the base plate, with lifting rings placed next to them; matrix sleeves inserted into the matrix holes on the upper surface of the base plate; finally, the assembled single flexible measurement bracket is placed on the base plate and secured to the base plate using positioning locking pins.

[0009] The single-unit flexible measurement support includes: using a small floor as a reference plate, inserting the support into the four corner holes of the floor and connecting it to the array sleeve in the sandwich platform via positioning pins; then connecting the column profile to the small floor via positioning pins and bolts, serving as the channel for the vertical extension and retraction of the single-unit flexible measurement support; then fixing it with a cap and using flat-head screws and positioning pins; then inserting the upper and lower telescopic rods as the vertical adjustment mechanism, connecting the upper and lower telescopic rods via bolts passing through the through-hole eccentric sleeve and the threaded eccentric sleeve, simultaneously realizing the locking and unlocking of the upper and lower telescopic rods during vertical movement and rotation; then inserting the front and rear telescopic rods as... The front and rear adjustment mechanism uses bolts to connect the beveled through-hole sleeve and the beveled threaded sleeve via threads, enabling locking and unlocking of the front and rear telescopic rods during forward and backward movement and rotation; bolts are also used to lock and unlock the main screw mounting seat during rotation; bolts are used to lock and unlock the clamp adapter block; fine-pitch nuts are used to lock the positioning ball during up and down movement; a telescopic pin of a certain diameter connects the two clamp adapter blocks, which are then secured with a stop screw; bolts are used to secure the clamp seat; bolts and pins are used to secure the clamp; washers and bolts are used to secure the clamp rod; and finally, the pressure head is installed.

[0010] The working principle of the new flexible measuring support includes the following steps:

[0011] Step 1: The structural state of a single flexible support needs to be determined using a 3D model to locate the sheet metal. Based on the positions of its RPS points, the supports are sequentially installed on the worktable. The positioning ball is adjusted to the working position using the telescopic and rotating joints of the upper and lower telescopic rods, front and rear telescopic rods, and main screw mounting brackets. Before placing the sheet metal, the entire flexible measuring support set needs to be measured using a coordinate measuring machine, and a report generated. Only after it passes the inspection can it be used.

[0012] Step 2: When using the machine, first open the clamps and place the sheet metal onto the flexible measuring bracket. Then, adjust the clamp rods and pressure head to the appropriate positions, clamp the clamps, and use a coordinate measuring machine to measure. After the measurement is completed, output the measurement report. If it is qualified, open the clamps and take out the sheet metal. If it is not qualified, you need to find the problem and solve it.

[0013] Step 3: After use, loosen the positioning locking pins and retract the flexible measuring brackets in groups to reposition them.

[0014] The beneficial effects of this invention are:

[0015] 1. The new flexible measuring bracket is a tooling that uses multiple telescopic and rotary joints to achieve various states and positions during measurement. It is a highly flexible measuring bracket that can be adjusted according to the location of the positioning point to meet the usage requirements.

[0016] 2. This invention significantly reduces labor costs by utilizing the rapid disassembly and reassembly of each joint of the individual measuring brackets. After a single complete assembly, the joints can be easily interchanged and reassembled for subsequent use.

[0017] 3. This invention reduces the volume of the new flexible measuring bracket in terms of structural space, thus reducing the waste of space resources; at the same time, it enables the recycling of the gauge, avoiding the waste of domestic resources; and it also facilitates the upgrading of new models by OEMs. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is an exploded view of a single set of novel flexible measuring supports for positioning surfaces, as proposed in this invention.

[0020] Figure 2 This is a schematic diagram of two combined structures of a novel flexible measuring support proposed in this invention;

[0021] Figure 3 This is a schematic diagram of a single set of positioning pins for a novel flexible measuring bracket proposed in this invention.

[0022] Figure 4 This is a schematic diagram of the overall use mechanism of a novel flexible measuring support proposed in this invention.

[0023] Attached reference numerals: 1. Small base plate; 2. Column profile; 3. Cap; 4. Through-hole eccentric sleeve; 5. Threaded eccentric sleeve; 6. Upper and lower telescopic rods; 7. Beveled threaded sleeve; 8. Beveled through-hole sleeve; 9. Front and rear telescopic rods; 10. Main screw mounting base; 11. Positioning ball; 12. Clamp adapter block; 13. Clamp seat; 14. Clamp rod; 15. Positioning sleeve; 16. M6*15 bolt; 17. M6*15 bolt; 18. M5 washer; 19. 10*140 diameter telescopic pin; 20. M5*15 bolt; 21. Pressure head; 22. M5*8 flat head screw; 23. M10*25 bolt; 24. M12*1.25 fine thread nut; 25. M5*15 bolt; 26. M10*50 bolt; 27. M10*60 bolt; 28. Clamping clamp; 29. ​​Base plate; 30. Leveling foot; 31. Casters; 32. Fixed casters; 33. Forklift slot; 34. Lifting ring; 35. Reference ball; 36. Matrix sleeve; 37. Positioning locking pin. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figure 1 As shown, this invention is a novel flexible measuring bracket. Its assembly method involves embedding a positioning sleeve 15 into a small base plate 1; mounting the small base plate 1 onto a workbench using a positioning locking pin 37; connecting the column profile 2 to the small base plate 1 as a channel for vertical extension; then covering it with a cap 3 and inserting the upper and lower telescopic rods 6. Eccentric locking pins 4 and 5 are used to lock and release the telescopic rods during vertical movement and rotation. Both the cap 3 and the upper and lower telescopic rods 6 are engraved with scales indicating the rotation angle and vertical movement distance. Next, the front and rear telescopic rods 9 are inserted into the upper and lower telescopic rods 6. The chamfered threaded sleeves 7 and 8 are used to lock and release the telescopic rods during left and right movement. The upper parts of the front and rear telescopic rods 9 and the upper and lower telescopic rods 6 are also engraved with scales indicating the rotation angle and left and right movement distance. The main screw mounting base 10 is secured with bolts. The rotation, locking, and unlocking of the clamps are achieved by bolts; the locking and unlocking of the clamp adapter block 12 are achieved by bolts; the positioning ball 11 is locked by a fine-tooth nut; the two clamp adapter blocks are connected by telescopic pins; the clamp adapter block 12 and the clamp seat 13 are connected by bolts; finally, the clamps, clamp rods 14, and pressure head are assembled.

[0026] Please see Figure 2 , Figure 3 and Figure 4 As shown, Figure 2 The example uses two sets of flexible supports in combination. One set removes the positioning ball 11 and the M12*1.25 fine thread nut 24; the other set removes the clamp adapter block (12), clamp seat (13), clamp rod (14), M6*15 bolt (16), M6*15 bolt (17), M5 washer (18), 10*140 diameter telescopic pin (19), M5*15 bolt (20), pressure head (21), M5*15 bolt (25), and clamp (28), thus making it suitable for more complex environments. This is because some automotive sheet metal has a relatively large slope and surface variation; or the RPS point is too far from the edge of the sheet metal, causing the positioning ball 11 and clamp 28 to be too far apart, so they have to be separated. This is to better achieve the positioning of the sheet metal and the overall measurement. Figure 1 The flexible support in the example is the positioning ball 11, while this... Figure 3 In the example, it is to Figure 1In this example, the positioning ball 11 is replaced with a positioning pin to form a complete positioning system. A complete set of flexible measuring brackets is produced by placing a batch of various flexible measuring brackets according to customer needs, and then installing each flexible measuring bracket according to the sheet metal to be measured. In this embodiment, before installation and positioning, we first need to determine the structural state of a single set of flexible brackets using a 3D model, find the positioning information of the sheet metal to be measured, and install them sequentially on the worktable according to the position of their RPS points. The main screw is adjusted to the working position using the telescopic rod and the rotating joint. Before placing the sheet metal, we need to measure the placed flexible measuring brackets using a coordinate measuring machine, generate a report, and only use them after they pass the test. During use, first open the clamp 28, place the actual sheet metal onto the flexible measuring bracket, then clamp the clamp 28, and measure it using a coordinate measuring machine. After the measurement is completed, generate the measurement report first. If it passes the test, open the clamp 28 and remove the sheet metal. If it fails the test, we need to find and solve the problem. After use, loosen the floor positioning pins, retract the flexible measuring brackets in groups, and rearrange them.

[0027] The working principle of this new flexible measuring bracket includes the following steps:

[0028] Step 1: The structural state of a single flexible support needs to be determined using a 3D digital model to locate the sheet metal for measurement. Based on the positions of its RPS points, the supports are then installed sequentially on the worktable. Using the telescopic and rotating joints of the upper and lower telescopic rods 6, front and rear telescopic rods 9, and main screw mounting bracket 10, the positioning ball 11 is adjusted to the working position. Before placing the sheet metal, the entire flexible measuring support set needs to be measured using a coordinate measuring machine, and a report generated. Only after it passes the test can it be used.

[0029] Step 2: When using the machine, first open clamp 28, place the sheet metal onto the flexible measuring bracket, then adjust clamp rod 14 and pressure head 21 to the appropriate position, clamp clamp 28, and use a coordinate measuring machine to measure. After the measurement is completed, output the measurement report first. If it is qualified, open clamp 28 and take out the sheet metal. If it is not qualified, you need to find the problem and solve it.

[0030] Step 3: After use, loosen the positioning locking pin 37, retract the flexible measuring bracket in groups, and reposition it.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A novel flexible measuring bracket, characterized in that, This includes single-unit flexible measuring brackets and combined measuring brackets composed of multiple sets of the single-unit flexible measuring brackets; The single-unit flexible measuring bracket uses the small floor (01) as the reference plate. The positioning sleeve (15) is installed in the four corner holes of the small floor (01) and connected to the matrix sleeve (36) in the sandwich platform through the positioning locking pin (37). The column profile (02) is connected to the small floor (01) through the positioning pin and bolt, serving as the upper and lower telescopic channel. The cap (03) is fixed to the column profile (02) through the M5 flat head screw (22) and the positioning pin. The upper and lower telescopic rod (06) serves as the upper and lower adjustment mechanism. The M10*60 bolt (27) passes through the through hole eccentric sleeve (04) and is threadedly connected to the threaded eccentric sleeve (05) to realize the locking and unlocking when the upper and lower telescopic rod (06) moves up and down and rotates. The front and rear telescopic rod (09) serves as the front and rear adjustment mechanism. The M10*50 bolt (26) passes through the beveled through hole sleeve (08) and the beveled threaded sleeve (07). Threaded connection enables locking and unlocking of the front and rear telescopic rods (09) during forward and backward movement and rotation; M10*25 bolts (23) are used for locking and unlocking of the main screw mounting base (10) during rotation; M6*15 bolts (16) are used for locking and unlocking of the clamp adapter block (12); M12*1.25 fine thread nut (24) is used for locking of the positioning ball (11) during up and down movement; a telescopic pin (19) with a diameter of 10*140 connects the two clamp adapter blocks (12) and is fixed by a stop screw; the clamp seat (13) is fixed by an M615 bolt (17); the clamp (28) is fixed by an M5*15 bolt (25) and a pin; the clamp rod (14) is fixed by an M5 washer (18) and an M5*15 bolt (20), and its end is equipped with a pressure head (21); The combined measuring bracket includes a floor panel (29), with leveling feet (30) at the four corners of the lower part of the floor panel (29), two omnidirectional wheels (31) and two directional wheels (32) on the side of the leveling feet (30), and a forklift groove (33) pre-set on the floor panel (29); a reference ball (35) is provided at the four corners of the upper part of the floor panel (29), and a lifting ring (34) is provided on the side of the reference ball (35); a matrix sleeve (36) is inlaid in the matrix hole on the upper surface of the floor panel (29); the single flexible measuring bracket is fixed to the floor panel (29) by a positioning locking pin (37) for realizing the overall measurement of sheet metal parts.

2. The novel flexible measuring bracket according to claim 1, characterized in that, The new flexible measuring bracket achieves multi-position adjustment through telescopic rods and rotating joints, and has high flexibility. It can adjust its own position according to the location of the positioning point to meet the measurement requirements.

3. The novel flexible measuring bracket according to claim 1, characterized in that, The cap (03), upper and lower telescopic rods (06), front and rear telescopic rods (09), and main screw mounting base (10) are all engraved with scales, allowing for precise operation according to the scales during adjustment; the upper and lower telescopic rods (06) can be adjusted in length according to the usage environment, and cooperate with the column profile (02) to achieve up-and-down sliding and rotation; the front and rear telescopic rods (09) can be adjusted in length according to the usage environment, and cooperate with the upper and lower telescopic rods (06) to achieve omnidirectional rotation and front-and-back extension.

4. The novel flexible measuring bracket according to claim 1, characterized in that, The positioning ball (11) can be replaced with a positioning pin according to the positioning requirements, and the clamp module assembled from the clamp adapter block (12), clamp seat (13), clamp rod (14), M6*15 bolt (16), M6*15 bolt (17), M5 washer (18), telescopic pin (19) with a diameter of 10*140, M5*15 bolt (20), pressure head (21), M5*15 bolt (25) and clamp (28) can be eliminated.

5. The novel flexible measuring bracket according to claim 4, characterized in that, When the flange slope of the sheet metal part is large, two sets of the single flexible measuring brackets are used in combination; the clamping module is removed from the first set, and the positioning mechanism consisting of the positioning ball (11) and the M12*1.25 fine thread nut (24) is removed from the second set; the first set is used as the positioning mechanism and the second set is used as the clamping mechanism to realize the positioning and clamping of the sheet metal part.

6. The novel flexible measuring bracket according to claim 1, characterized in that, The working method includes the following steps: Step 1: Determine the structural state of a single flexible measuring bracket through 3D modeling, obtain the positioning information of the sheet metal parts to be measured, and install the single flexible measuring bracket on the floor (29) in sequence according to its RPS point position; adjust the positioning ball (11) to the working position by adjusting the extension and rotation of the upper and lower telescopic rods (06), the front and rear telescopic rods (09) and the main screw mounting seat (10); before placing the sheet metal parts, measure the entire flexible measuring bracket with a coordinate measuring machine, and put it into use after it is qualified; Step 2: When using the machine, first open the clamp (28), place the sheet metal part on the flexible measuring bracket, adjust the clamp rod (14) and pressure head (21) to the appropriate position and clamp the clamp (28), and use a coordinate measuring machine to measure; after the measurement is completed, output the measurement report. If it is qualified, open the clamp (28) and take out the sheet metal part. If it is not qualified, check and solve the problem. Step 3: After use, loosen the positioning locking pin (37), retract the flexible measuring bracket in groups and arrange it neatly.

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