Workpiece simulation device and error measurement tool

Abstract

The utility model discloses a workpiece simulating device and an error measuring tool. The workpiece simulation device is used for simulating a spoiler assembled on a tail door. The tail door comprises a mounting surface and is mounted on a vehicle body, and the vehicle body comprises a positioning surface. And three positioning holes which are linearly arranged are formed in the positioning surface along the width direction of the tail gate. The workpiece simulation device comprises a fixing rod, a mounting assembly and a positioning piece. The mounting assembly is connected with the fixing rod. And a positioning unit is arranged on the mounting assembly. The positioning piece is installed on the fixing rod. And the positioning piece is provided with a profiling surface. And when the workpiece simulation device simulates and is assembled on the tail gate, the positioning unit is used for being connected with the positioning hole, and the profiling surface is used for being matched with the mounting surface. The workpiece simulation device simulates the spoiler to be assembled on the tail door, the assembly problem of the tail door can be found in the welding stage, the later repair cost is reduced, the production process is optimized, and the assembly quality and precision in the actual assembly process are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the tailgate assembly technical field, in particular to a workpiece imitation device and error measurement tool. BACKGROUND

[0002] With the rapid development of the vehicle industry, people have higher pursuit of the appearance aesthetics of vehicles, and have more stringent requirements for the DTS (Dimensional Technical Specification) of vehicles. In the existing vehicle assembly process, the tailgate is first assembled to the vehicle body in the welding stage, then the spoiler is assembled to the tailgate in the assembly stage, and then the gap surface difference between the spoiler and the vehicle body is detected. When the gap surface difference between the spoiler and the vehicle body is detected to be unqualified, rework needs to be performed by readjusting the tailgate hinge, which affects the production efficiency. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a workpiece imitation device and error measurement tool to solve the technical problem that the gap surface difference between the spoiler and the vehicle body cannot be detected when the tailgate is assembled.

[0004] To solve the above technical problem, the present application provides a workpiece imitation device for imitating the spoiler assembled to the tailgate, the tailgate comprising a mounting surface, the tailgate being mounted on the vehicle body, the vehicle body comprising a positioning surface, the positioning surface being provided with three positioning holes arranged in a straight line along the width direction of the tailgate, comprising: a fixed rod; an installation assembly connected to the fixed rod, the installation assembly being provided with a positioning unit; a positioning piece mounted on the fixed rod, the positioning piece being provided with a profiling surface; wherein, when the workpiece imitation device is imitated to be assembled to the tailgate, the positioning unit is used to connect with the positioning hole; and the profiling surface is used to cooperate with the mounting surface.

[0005] In some embodiments of the present application, the installation assembly comprises a first installation block and a second installation block connected to opposite ends of the fixed rod respectively; the positioning unit comprises a first positioning pin, and each of the first installation block and the second installation block is provided with one first positioning pin; along the axis direction of the fixed rod, the first positioning pin of the first installation block and the first positioning pin of the second installation block are located on the same straight line; wherein, when the workpiece imitation device is imitated to be assembled to the tailgate, the first positioning pins are respectively used to be fixed in the positioning holes located at the two ends.

[0006] In some embodiments of the present application, the mounting assembly comprises a third mounting block; the third mounting block is located between the first mounting block and the second mounting block along the axis direction of the fixing rod; the positioning unit further comprises a second directional positioning pin, which is arranged on the third mounting block; the second directional positioning pin and the two first directional positioning pins are located on the same straight line along the axis direction of the fixing shaft; the distance from the second directional positioning pin to the two first directional positioning pins is equal; when the workpiece simulation device simulates the assembly on the tailgate, the second directional positioning pin is used to connect with the middle positioning hole.

[0007] In some embodiments of the present application, the positioning member is arranged in two, and is arranged on the first mounting block and the second mounting block respectively; wherein the shape of the profiling surface of each positioning member is consistent with the shape of the spoiler.

[0008] In some embodiments of the present application, the mounting assembly further comprises a mounting member, which is connected with the fixing rod; the mounting member comprises a positioning block; when the workpiece simulation device simulates the assembly on the tailgate, the positioning block is used to abut against the positioning surface.

[0009] In some embodiments of the present application, the end surface of the positioning block towards the positioning surface is further provided with a magnet, which is adsorbed and connected with the positioning surface.

[0010] In some embodiments of the present application, the mounting member further comprises a mounting arm, which is connected with the fixing rod, and the positioning block is fixed to the end of the mounting arm away from the fixing rod.

[0011] In some embodiments of the present application, along the axis direction of the fixing rod, the mounting assembly comprises the first mounting block, the second mounting block and the third mounting block arranged in a straight line, wherein the second mounting block is located between the first mounting block and the third mounting block; the positioning unit comprises the first directional positioning pin and the second directional positioning pin, and one first directional positioning pin is arranged on the first mounting block and the second mounting block; the second directional positioning pin is arranged on the third mounting block; the mounting member is four, and the first mounting block and the third mounting block are respectively provided with two mounting members; the two mounting members of the first mounting block are arranged symmetrically along the axis of the fixing rod, and the two mounting members of the third mounting block are arranged symmetrically along the axis of the fixing rod; when the workpiece simulation device simulates the assembly on the tailgate, the second directional positioning pin and the first directional positioning pin are used to fix with the corresponding positioning hole, and the mounting member is used to abut against the positioning surface.

[0012] In some embodiments of the present application, the first mounting block and the second mounting block are further provided with an auxiliary positioning block, which is arranged towards the positioning surface; when the workpiece simulation device simulates the assembly on the tailgate, the second directional positioning pin and the first directional positioning pin are used to fix with the corresponding positioning hole, and the auxiliary positioning block is used to abut against the positioning surface.

[0013] To solve the above technical problems, the present application provides an error measuring tool, which comprises the workpiece simulation device in any of the above embodiments.

[0014] The beneficial effects of the present application are: different from the prior art, the present application provides a workpiece simulation device and an error measurement tool. The workpiece simulation device is used to simulate the installation of a spoiler on a tailgate. The tailgate includes a mounting surface, and the tailgate is mounted on a vehicle body, which includes a positioning surface. The positioning surface is provided with three positioning holes arranged in a straight line along the width direction of the tailgate. The workpiece simulation device includes a fixing rod, a mounting assembly, and a positioning piece. The mounting assembly is connected to the fixing rod. The mounting assembly is provided with a positioning unit. The positioning piece is installed on the fixing rod. The positioning piece is provided with a profiling surface. When the workpiece simulation device is installed on the tailgate, the positioning unit is used to connect with the positioning hole, and the profiling surface is used to cooperate with the mounting surface. Before the real spoiler is installed on the tailgate, the workpiece simulation device of the present application is used to simulate the installation of the spoiler on the tailgate. Through the cooperation between the profiling surface and the mounting surface, it is found that there is a size deviation problem in the installation process of the tailgate. Therefore, by using the workpiece simulation device of the present application, the installation of the real spoiler on the tailgate is simulated before the real spoiler is installed on the tailgate, so as to find the error or problem between the spoiler and the vehicle body during actual installation. The installation problem of the tailgate can be found in the welding stage, the repair cost in the later stage is reduced, and the production process is optimized. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the workpiece simulation device of the present application;

[0017] Figure 2 is a front view structural schematic diagram of Figure 1 ;

[0018] Figure 3 is a structural schematic diagram of an embodiment of the workpiece simulation device of the present application in the installed state;

[0019] Figure 4 is a top view structural schematic diagram of Figure 1 ;

[0020] Figure 5 is a bottom view structural schematic diagram of Figure 1 .

[0021] Reference signs: 100, workpiece imitating device; 1, fixed rod; 2, mounting assembly; 21, positioning unit; 211, first direction positioning pin; 212, second direction positioning pin; 221, first mounting block; 222, second mounting block; 223, third mounting block; 23, mounting piece; 231, positioning block; 232, mounting arm; 24, magnet; 25, auxiliary positioning block; 3, positioning piece; 31, profiled surface; 4, calibration piece; 300, tailgate; 301, positioning surface; 302, positioning hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0023] In this document, reference to“an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. Those skilled in the art will appreciate that embodiments described herein can be combined with other embodiments.

[0024] The workpiece imitating device and the error measuring tool provided by the utility model will be described in detail below in combination with the embodiments.

[0025] The directions in the present application refer to the positions of the vehicle when it is working normally. The front-rear direction X is the direction from the front of the vehicle to the back of the vehicle. The left-right direction Y is the width direction of the vehicle body, which is approximately the horizontal direction of the vehicle. The height direction is the direction from the top of the vehicle to the bottom of the vehicle, which is approximately the direction perpendicular to the horizontal bottom surface.

[0026] Please refer to Figures 1 to 3 , Figure 1 is a perspective structural schematic view of an embodiment of the workpiece imitating device of the present application. Figure 2 is Figure 1 a front view structural schematic view of the workpiece imitating device of the present application. Figure 3is a structural schematic view of an embodiment of the workpiece imitation device in an installed state. The present application provides a workpiece imitation device. The workpiece imitation device 100 is used to imitate the installation of a spoiler (not shown in the figure) on a tailgate 300. The tailgate 300 is installed on a vehicle body (not shown in the figure), and the vehicle body includes a mounting surface (not shown in the figure). The tailgate includes a positioning surface 301. The mounting surface is the position where the spoiler is matched in the installation relationship after being installed on the tailgate 300. The positioning surface 301 has a fixed positional relationship with the mounting surface, and during the installation process, the positioning surface 301 can be used to assist the workpiece imitation device 100 to be installed to the accurate position. In the height direction of the vehicle, the positioning surface 301 can be the top surface of the tailgate 300, or the bottom surface of the tailgate 300. The positioning surface 301 is provided with three positioning holes 302 arranged in a straight line along the left-right direction Y of the tailgate 300. The workpiece imitation device 100 includes a fixed rod 1, a mounting assembly 2, and a positioning member 3. The mounting assembly 2 is connected to the fixed rod 1, and the connection mode includes but is not limited to welding, bonding, clamping, screwing, etc. The positioning member 3 is installed on the fixed rod 1, and the installation mode includes but is not limited to welding, bonding, clamping, screwing, etc.

[0027] The mounting assembly 2 is provided with a positioning unit 21. The positioning unit 21 cooperates with the positioning hole 302 to realize the installation and positioning of the workpiece imitation device 100 on the tailgate 300. The shape and size of the positioning unit 21 correspond to the positioning hole 302. The types of the positioning unit 21 include but are not limited to positioning pins, connecting shafts, guide columns, etc.

[0028] The positioning member 3 is provided with a profiling surface 31. When the workpiece imitation device 100 is imitated to be installed on the tailgate 300, the positioning unit 21 is used to connect with the positioning hole 302, and the profiling surface 31 is used to cooperate with the mounting surface. The shape of the profiling surface 31 is consistent with the shape of the spoiler. Before the real spoiler is installed on the tailgate 300, the workpiece imitation device 100 is imitated to be installed on the tailgate 300, the profiling surface 31 cooperates with the mounting surface, and the positioning unit 21 connects the positioning hole 302, so that the workpiece imitation device 100 is installed on the tailgate 300 in the same position as the spoiler installed on the tailgate 300 during actual installation. Therefore, by measuring the gap between the profiling surface 31 on the positioning member 3 and the mounting surface, the error or problem between the spoiler and the vehicle body during actual installation can be judged, the installation problem of the tailgate 300 can be found in the welding stage, the post-repair cost is reduced, and the production process is optimized.

[0029] In this embodiment, the use process of the workpiece simulation device 100 is as follows: after the tail door 300 is arranged on the vehicle body in the welding stage, the operator places the workpiece simulation device 100 in the preset position, and tries to insert the positioning unit 21 into the positioning hole 302. At this time, it is checked whether the positioning unit 21 can be fully inserted into the positioning hole 302. When the positioning unit 21 is fully inserted into the positioning hole 302, it means that the size of the positioning surface 301 is qualified, that is, the gap size and the surface difference size between the simulation surface 31 and the mounting surface at this time are effective, and the measurement of the gap size and the surface difference size can predict whether the gap size and the surface difference size between the spoiler and the mounting surface after the spoiler is installed are within the correct range. When the positioning unit 21 cannot be fully inserted into the positioning hole 302, it means that the positioning surface 301 is deformed, that is, the gap size and the surface difference size between the simulation surface 31 and the mounting surface at this time are invalid, and the positioning size of the positioning surface 301 and the mounting surface needs to be corrected. After the workpiece simulation device 100 is correctly installed on the tail door 300, the gap size and the surface difference size between the workpiece simulation device 100 and the mounting surface are measured using a measuring tool, and the measurement value is analyzed to determine whether the measurement value is within the qualified range. When the measurement value is qualified, it is considered that the gap size and the surface difference size between the spoiler and the mounting surface during actual assembly meet the specifications, the tail door 300 is installed in place, and the spoiler can be correctly installed on the tail door 300 in the assembly stage, so that the workpiece simulation device 100 can be removed. When the measurement value is not qualified, the tail door 300 is adjusted in the direction according to the measurement value, and the hinge of the tail door 300 is adjusted until the measurement value is qualified.

[0030] In the above manner, before the real spoiler is assembled on the tail door 300, the workpiece simulation device 100 of the present application is used to simulate the assembly of the spoiler on the tail door 300, and the size deviation problem of the tail door during assembly is found through the cooperation of the simulation surface 31 and the mounting surface. Therefore, by using the workpiece simulation device 100 of the present application, the spoiler is simulated to be assembled on the tail door 300 before the real spoiler is assembled on the tail door 300, so that the error or problem between the spoiler and the vehicle body during actual assembly can be found, the assembly problem of the tail door 300 can be found in the welding stage, the repair cost in the later stage is reduced, and the production process is optimized.

[0031] In addition, compared with using the spoiler to install on the tail door 300, using the workpiece simulation device 100 to simulate assembly can realize quick disassembly and assembly, reduce the workload of the operator and the probability of part scrap, thereby improving production efficiency and reducing production cost. Moreover, the workpiece simulation device 100 has simple structure and is convenient to operate.

[0032] The size and material of the workpiece simulation device 100 can be set according to actual conditions, which are not limited herein. In a specific embodiment, the material of the workpiece simulation device 100 is carbon fiber material, which can effectively reduce the weight of the workpiece simulation device 100 without affecting the strength of the workpiece simulation device 100, making it more convenient for operators to use and reducing the labor intensity of operators.

[0033] Please refer to Figures 4 to 5 , Figure 4 is Figure 1 a top view structural schematic diagram; Figure 5 is Figure 1 a bottom view structural schematic diagram. In an embodiment, the mounting assembly 2 includes a first mounting block 221 and a second mounting block 222 connected to opposite ends of the fixed rod 1, respectively. The positioning unit 21 includes a first positioning pin 211, and each of the first mounting block 221 and the second mounting block 222 is provided with a first positioning pin 211. Along the axis direction of the fixed rod 1, the first positioning pin 211 of the first mounting block 221 and the first positioning pin 211 of the second mounting block 222 are located on the same straight line, that is, the coordinates of the two first positioning pins 211 along the front-rear direction X of the vehicle remain the same. Among them, when the workpiece simulation device 100 is simulated to be assembled to the tailgate 300, the first positioning pins 211 are respectively fixed to the positioning holes 302 located at the two ends.

[0034] If the size of the tailgate along the front-rear direction X of the vehicle is offset, it may cause the coordinates of the positioning holes 302 located at the two ends in the front-rear direction X of the vehicle to be different. At this time, at least one of the first positioning pin 211 of the first mounting block 221 and the first positioning pin 211 of the second mounting block 222 cannot be inserted into the corresponding positioning hole 302 due to the offset of the positioning hole 302 along the front-rear direction X of the vehicle, thereby achieving the effect of discovering that the tailgate 300 is offset along the front-rear direction X of the vehicle.

[0035] The height and direction of the first positioning pin 211 can be set according to actual conditions, which are not limited herein. In a specific embodiment, the first positioning pin 211 is arranged along the direction perpendicular to the axis direction of the fixed rod 1. The height of the first positioning pin 211 of the first mounting block 221 and the height of the first positioning pin 211 of the second mounting block 222 can be set according to the two positioning holes 302 on the outside, and the heights of the two first positioning pins 211 can be the same or different.

[0036] In an embodiment, the mounting assembly 2 comprises a third mounting block 223. The third mounting block 223 is located between the first mounting block 221 and the second mounting block 222 along the axial direction of the fixing rod 1. The distance from the third mounting block 223 to the first mounting block 221 and the second mounting block 222 can be the same. The positioning unit 21 comprises a second orientation positioning pin 212. The orientation of the first orientation positioning pin 211 and the orientation of the second orientation positioning pin 212 can be the same or different. The second orientation positioning pin 212 is arranged on the third mounting block 223. The second orientation positioning pin 212 and the first orientation positioning pin 211 are located on the same straight line along the axial direction of the fixing rod 1. The distance from the second orientation positioning pin 212 to the two first orientation positioning pins 211 is equal. When the workpiece simulation device 100 simulates the assembly of the tailgate 300, the second orientation positioning pin 212 is used to connect with the middle positioning hole 302.

[0037] When the tailgate 300 is correctly sized, the distance from the middle positioning hole 302 to the two positioning holes 302 located at both ends is equal. If the tailgate 300 is offset in the left-right direction Y of the vehicle, it can cause the distance from the middle positioning hole 302 to the two positioning holes 302 on the outside to no longer be equal. At this time, the second orientation positioning pin 212 cannot be inserted into the middle positioning hole 302 due to the offset of the positioning hole 302 in the left-right direction Y of the vehicle, thereby achieving the effect of discovering that the tailgate 300 is offset in the left-right direction Y of the vehicle.

[0038] The height and direction of the second orientation positioning pin 212 can be set according to actual conditions and are not limited herein. In a specific embodiment, the second orientation positioning pin 212 is arranged along a direction perpendicular to the axial direction of the fixing rod 1. The height of the first orientation positioning pin 211 can be the same as the height of the second orientation positioning pin 212. The height of the first orientation positioning pin 211 can be different from the height of the second orientation positioning pin 212.

[0039] In an embodiment, the positioning member 3 is provided in two and arranged on the first mounting block 221 and the second mounting block 222, respectively. Each positioning member 3 has a profiling surface 31 that is shaped in accordance with the shape of the spoiler. The profiling surface 31 of the first mounting block 221 and the profiling surface 31 of the second mounting block 222 cooperate to form at least part of the shape of the spoiler, reducing the error between the profiling surface 31 and the actually assembled spoiler.

[0040] By arranging one profiling surface 31 on the first mounting block 221 and one profiling surface 31 on the second mounting block 222, the two profiling surfaces 31 simulate the formation of at least part of the shape of the spoiler, reducing the error between the workpiece simulation device 100 and the actually assembled spoiler, and allowing the gap difference between the workpiece simulation device 100 and the vehicle body and the stability of the installation to be measured, thereby improving the accuracy and efficiency of the spoiler during actual assembly.

[0041] In an embodiment, the mounting assembly 2 further comprises a mounting piece 23. The mounting piece 23 is connected to the fixed rod 1 in a manner including but not limited to welding, bonding, clamping, screwing, etc. The mounting piece 23 comprises a positioning block 231. When the workpiece simulation device 100 is simulated to be assembled on the tailgate 300, the positioning block 231 is used to abut against the positioning surface 301. When the orientation of the positioning block 231 is the same as that of the positioning unit 21 on the mounting assembly 2, the positioning block 231 can be higher than the positioning unit 21 in the height direction of the vehicle, so that after the positioning unit 21 is inserted into the positioning hole 302, the positioning block 231 can just fit on the positioning surface 301. When the orientation of the positioning block 231 is different from that of the positioning unit 21, for example, when the positioning surface 301 is an arc surface, the positioning block 231 can be lower than the positioning unit 21 in the height direction of the vehicle, so that after the positioning unit 21 is inserted into the positioning hole 302, the positioning block 231 can fit on the lower area of the positioning surface 301. At this time, the two places where the positioning block 231 and the positioning unit 21 abut against the positioning surface 301 can realize positioning from two angles to the positioning surface 301, and the installation of the workpiece simulation device 100 is more accurate. The positional relationship between the positioning block 231 and the positioning unit 21 described above is only an example of the embodiment, and can be set according to actual conditions, which is not limited here.

[0042] If the positioning block 231 can abut against the positioning surface 301, it means that the tailgate 300 is installed correctly in the height direction of the vehicle. If the size of the tailgate 300 in the height direction of the vehicle is offset, it can cause the coordinates of the positioning surface 301 in the height direction of the vehicle to be different. At this time, the positioning block 231 cannot abut against the positioning surface 301 due to the offset of the positioning surface 301 in the height direction of the vehicle, thereby realizing the function of finding that the tailgate 300 is offset in the height direction of the vehicle.

[0043] The connection manner of the positioning block 231 and the tailgate 300 includes but is not limited to clamping, magnetic attraction, etc. In a specific embodiment, the end face of the positioning block 231 facing the positioning surface 301 is further provided with a magnet 24. The magnet 24 is connected to the positioning surface 301 by magnetic attraction. When the workpiece simulation device 100 is simulated to be assembled on the tailgate 300, the magnet 24 of the positioning block 231 can attract the positioning surface 301 of the tailgate 300, so that the workpiece simulation device 100 is stably connected to the tailgate 300. And due to the attraction of the magnet 24, the workpiece simulation device 100 is not easy to fall off or shift. Compared with the traditional bolt connection, the use of the magnet 24 for attraction connection can realize quick disassembly and assembly, which not only saves time, but also reduces the risk of damaging parts during disassembly and assembly. The number of magnets 24 includes but is not limited to one, two, three, four, five, etc. The shape of the magnet 24 includes but is not limited to a circle, a square, a polygon, etc.

[0044] In an embodiment, the mounting member 23 further comprises a mounting arm 232. The mounting arm 232 is connected to the fixed rod 1 in a manner including but not limited to welding, bonding, clamping, screwing, etc. The positioning block 231 is fixed to an end of the mounting arm 232 away from the fixed rod 1. The positional relationship between the positioning block 231 and the mounting arm 232 can be fixedly set or adjustably set. For example, a plurality of gear holes (not shown in the figure) are spaced apart along the extension direction of the mounting arm 232, and the positioning block 231 is selectively connected to one of the gear holes. Alternatively, a gear block (not shown in the figure) can slide on the mounting arm 232 and can be locked and fixed relative to the mounting arm 232 after sliding to a preset position.

[0045] By connecting the fixed rod 1 and the positioning block 231 through the mounting arm 232, the structure of the mounting member 23 is more stable, and the stability and reliability of the mounting member 23 during use are improved. Moreover, the length of the mounting arm 232 can be flexibly adjusted to adapt to different installation requirements, so that the use of the workpiece imitation device 100 is more flexible.

[0046] In an embodiment, along the axis direction of the fixed rod 1, the mounting assembly 2 comprises the first mounting block 221, the second mounting block 222, and the third mounting block 223 arranged in a straight line. The second mounting block 222 is located between the first mounting block 221 and the third mounting block 223. The positioning unit 21 comprises the first directional positioning pin 211 and the second directional positioning pin 212. The first mounting block 221 and the second mounting block 222 are each provided with one first directional positioning pin 211. The second directional positioning pin 212 is provided on the third mounting block 223. The mounting member 23 is four. The first mounting block 221 and the third mounting block 223 are each provided with two mounting members 23. The two mounting members 23 can abut against different positions of the positioning surface 301. The two mounting members 23 of the first mounting block 221 are symmetrically arranged along the axis of the fixed rod 1. The two mounting members 23 of the third mounting block 223 are symmetrically arranged along the axis of the fixed rod 1. When the workpiece imitation device 100 is imitated to be assembled to the tailgate 300, the second directional positioning pin 212 and the first directional positioning pin 211 are used to be fixed in the corresponding positioning hole 302, and the mounting member 23 is used to abut against the positioning surface 301.

[0047] If the first directional positioning pin 211 and the second directional positioning pin 212 can be fixed in the corresponding positioning hole 302, and the mounting member 23 can abut against the positioning surface 301, it means that the workpiece imitation device 100 is correctly installed on the tailgate 300, which facilitates obtaining correct values when measuring the gap size or the surface difference size between the imitated surface 31 and the mounting surface in the subsequent process, so that whether the gap size between the spoiler and the mounting surface after installation is within the correct range can be correctly predicted.

[0048] In an embodiment, the first mounting block 221 and the second mounting block 222 are further provided with an auxiliary positioning block 25. The auxiliary positioning block 25 is arranged towards the positioning surface 301. When the workpiece simulation device 100 is simulated to be assembled on the tailgate 300, the second positioning pin 212 and the first positioning pin 211 are used to be fixed with the corresponding positioning hole 302, and the auxiliary positioning block 25 is used to abut against the positioning surface 301. When the orientation of the auxiliary positioning block 25 is the same as the orientation of the first positioning pin 211 and the second positioning pin 212, the height of the auxiliary positioning block 25 in the height direction of the vehicle can be higher than the height of the first positioning pin 211 and the second positioning pin 212, so that the auxiliary positioning block 25 can just fit the positioning surface 301 after the second positioning pin 212 and the first positioning pin 211 are inserted into the corresponding positioning hole 302. When the orientation of the auxiliary positioning block 25 is different from the orientation of the first positioning pin 211 and the second positioning pin 212, for example, when the positioning surface 301 is an arc surface, the height of the auxiliary positioning block 25 in the height direction of the vehicle can be lower than the height of the first positioning pin 211 and the second positioning pin 212, so that the auxiliary positioning block 25 can fit other areas below the positioning surface 301 after the first positioning pin 211 and the second positioning pin 212 are inserted into the corresponding positioning hole 302. At this time, the auxiliary positioning block 25 and the first positioning pin 211 and the second positioning pin 212 abut against two places of the positioning surface 301 with different orientations, which can realize positioning from two angles to the positioning surface 301, and the workpiece simulation device 100 is installed more accurately. The positional relationship between the auxiliary positioning block 25 and the first positioning pin 211 and the second positioning pin 212 described above is only an example of the embodiment, and can be set according to actual conditions, which is not limited here. If the second positioning pin 212 and the first positioning pin 211 can be inserted into the corresponding positioning hole 302, and the positioning block 231 can abut against the positioning surface 301 at the same time, it means that the size of the positioning surface 301 itself is correct, and the gap size measured after the workpiece simulation device 100 is assembled based on the positioning surface 301 is effective. If the size of the positioning surface 301 in the front-rear direction X of the vehicle deviates, it may cause the coordinates of the two positioning holes 302 on the outside in the front-rear direction X of the vehicle to be different. At this time, at least one of the first positioning pin 211 of the first mounting block 221 and the first positioning pin 211 of the second mounting block 222 may not be inserted into the corresponding positioning hole 302 due to the deviation of the positioning hole 302 in the front-rear direction X of the vehicle. If the coordinates of the positioning surface 301 in the height direction of the vehicle deviate, it may cause the auxiliary positioning block 25 on the first mounting block 221 and the second mounting block 222 to not fit the positioning surface 301. Thus, the function of finding whether the size of the positioning surface 301 on the tailgate 300 itself has an error can be realized.When the positioning surface 301 is of correct size, the gap between the profiled surface 31 and the positioning surface is measured, so as to determine whether the assembly size of the tail door 300 relative to the vehicle body is offset, and the position of the tail door 300 can be corrected in time by adjusting the tail door hinge and the like.

[0049] The structure of the auxiliary positioning block 25 can be set according to actual conditions, which is not limited herein. In a specific embodiment, the positioning block 231 is of the same structure as the auxiliary positioning block 25. The end surface of the auxiliary positioning block 25 towards the positioning surface 301 is provided with a magnet 24, and the magnet 24 is in adsorptive connection with the positioning surface 301. The first mounting block 221 and the second mounting block 222 are connected with the auxiliary positioning block 25 through the mounting arm 232. In another specific embodiment, the first mounting block 221 and the second mounting block 222 are directly connected with the auxiliary positioning block 25.

[0050] In an embodiment, the first mounting block 221 and the second mounting block 222 are both provided with the positioning block 231 and the auxiliary positioning block 25. The positioning block 231 and the auxiliary positioning block 25 are both arranged towards different positions of the positioning surface 301. When the workpiece profiling device 100 profiles the assembly of the tail door 300, the positioning block 231 and the auxiliary positioning block 25 are used to abut against different positions of the positioning surface 301.

[0051] If the positioning block 231 and the auxiliary positioning block 25 can simultaneously abut against different positions of the positioning surface 301, it means that the tail door 300 is correctly installed in the height direction of the vehicle. If the size of the tail door 300 in the height direction of the vehicle is offset, it may cause the coordinates of the positioning surface 301 in the height direction of the vehicle to be different. At this time, at least one of the positioning block 231 and the auxiliary positioning block 25 cannot abut against the positioning surface 301 due to the offset of the positioning surface 301 in the height direction of the vehicle, thereby further achieving the effect of discovering that the tail door 300 is offset in the height direction of the vehicle.

[0052] In an embodiment, the workpiece profiling device 100 further comprises a calibration piece 4. One calibration piece 4 is arranged on each of the first mounting block 221, the second mounting block 222 and the third mounting block 223. The types of the calibration piece 4 include but are not limited to reference balls, measuring balls and the like.

[0053] In this embodiment, the use mode of the calibration piece 4 is illustrated by taking the reference ball as an example: the centers of the three reference balls all have fixed coordinate values. The measured values of the positions of the three reference balls are obtained by a measuring device (not shown in the figure), and the measured values are fitted with the theoretical coordinates in software to obtain a coordinate system of the measured values, and the error of the positioning piece 3 is adjusted according to the coordinate system of the measured values by using a tool, so as to reduce the error caused by manufacturing and assembly, thereby making the shape of the profiled surface 31 consistent with the shape of the spoiler.

[0054] In another aspect of the present application, an error measurement tool is provided. The error measurement tool comprises the workpiece profiling device 100 of any of the above embodiments, a measurement member (not shown) and an adjustment member (not shown). The measurement member can be, but is not limited to, a gap gauge, a surface difference gauge, etc.

[0055] In the present embodiment, the use of the error measurement tool is exemplified as follows. After the tailgate 300 is installed on the vehicle body during the welding stage, the operator places the workpiece profiling device 100 at the predetermined position, and attempts to insert the first directional positioning pin 211 and the second directional positioning pin 212 into the corresponding positioning holes 302, and to abut the positioning blocks 231 and the auxiliary positioning blocks 25 against the corresponding positioning surfaces 301. At this time, it is checked whether the first directional positioning pin 211 and the second directional positioning pin 212 can be fully inserted into the corresponding positioning holes 302, and whether the positioning blocks 231 and the auxiliary positioning blocks 25 can be fully abutted against the corresponding positioning surfaces 301. When the first directional positioning pin 211 and the second directional positioning pin 212 can be fully inserted into the corresponding positioning holes 302, and the positioning blocks 231 and the auxiliary positioning blocks 25 can be fully abutted against the corresponding positioning surfaces 301, it is indicated that the dimensions of the positioning surfaces 301 are qualified, i.e., the gap dimension and the surface difference dimension between the profiling surface 31 and the mounting surface are valid at this time, and the measurement of the gap dimension can predict whether the gap dimension between the spoiler and the mounting surface after the spoiler is installed is within the correct range. When the first directional positioning pin 211 and the second directional positioning pin 212 cannot be fully inserted into the corresponding positioning holes 302, and the positioning blocks 231 and the auxiliary positioning blocks 25 cannot be fully abutted against the corresponding positioning surfaces 301, it is indicated that the positioning surfaces 301 are deformed, i.e., the gap dimension and the surface difference dimension between the profiling surface 31 and the mounting surface are invalid at this time, i.e., the tailgate 300 itself is deformed, and the dimensions of the positioning surfaces 301 need to be corrected.

[0056] When the first directional positioning pin 211 cannot be fully inserted into the corresponding positioning hole 302, it is indicated that the dimension of the positioning surface 301 along the front-rear direction X of the vehicle is offset; when the second directional positioning pin 212 cannot be fully inserted into the corresponding positioning hole 302, it is indicated that the dimension of the positioning surface 301 along the left-right direction Y of the vehicle is offset; and when the positioning blocks 231 and the auxiliary positioning blocks 25 cannot be fully abutted against the positioning surface 301, it is indicated that the dimension of the positioning surface 301 along the height direction of the vehicle is offset.

[0057] After the workpiece imitation device 100 is correctly installed on the tail door 300, the gap size between the workpiece imitation device 100 and the installation surface is measured by using the gap gauge, the surface difference size between the workpiece imitation device 100 and the installation surface is measured by using the surface difference gauge, the measurement values are analyzed, and it is judged whether the measurement values are within the qualified range. When the measurement values are qualified, it is considered that the gap size and the surface difference size between the spoiler and the installation surface in the actual assembly meet the specifications, the tail door 300 is installed in place, the spoiler can be correctly installed on the tail door 300 in the final assembly stage, and then the workpiece imitation device 100 can be removed. When the measurement values are not qualified, the adjustment direction of the tail door 300 is judged according to the measurement values, the hinge of the tail door 300 is adjusted by using the adjusting piece, and then the gap and surface difference values between the workpiece imitation device 100 and the installation surface are measured again until the measurement values are qualified.

[0058] The terms "first", "second", "third" in the present application are only for descriptive purpose, and cannot be understood as indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include at least one of the features. All directional indications (such as up, down, left, right, front, back) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed or can optionally include other steps or units inherent to the process, method, product or device.

[0059] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A workpiece imitation device for imitating a spoiler attached to a tailgate, the tailgate being mounted to a vehicle body, the vehicle body including a mounting surface, the tailgate including a positioning surface, the positioning surface having three positioning holes arranged in a straight line along a width direction of the tailgate, characterized in that, The utility model relates to a workpiece simulation device, including: A fixed rod; An installation assembly is connected with the fixed rod, and a positioning unit is arranged on the installation assembly; A positioning piece is installed on the fixed rod, and a profiling surface is arranged on the positioning piece; wherein, When the workpiece simulation device is simulated to be assembled on the tail door, the positioning unit is used for being connected with the positioning hole, and the profiling surface is used for cooperating with the mounting surface.

2. The workpiece emulation device of claim 1, wherein, The installation assembly includes a first mounting block and a second mounting block connected with opposite ends of the fixed rod respectively; The positioning unit includes a first directional positioning pin, and one first directional positioning pin is arranged on the first mounting block and the second mounting block respectively; Along the axis direction of the fixed rod, the first directional positioning pin of the first mounting block and the first directional positioning pin of the second mounting block are located on the same straight line; wherein, When the workpiece simulation device is simulated to be assembled on the tail door, the first directional positioning pin is respectively used for being fixed in the positioning hole located at both ends.

3. The workpiece emulation device of claim 2, wherein, The installation assembly includes a third mounting block; Along the axis direction of the fixed rod, the third mounting block is located between the first mounting block and the second mounting block; The positioning unit further includes a second directional positioning pin, and the second directional positioning pin is arranged on the third mounting block; Along the axis direction of the fixed rod, the second directional positioning pin and the two first directional positioning pins are located on the same straight line; The distance from the second directional positioning pin to the two first directional positioning pins is equal; When the workpiece simulation device is simulated to be assembled on the tail door, the second directional positioning pin is used for being connected with the positioning hole in the middle.

4. The workpiece emulation device of claim 2, wherein, The positioning piece is provided with two, and is arranged on the first mounting block and the second mounting block respectively; wherein, The shape of the profiling surface of each positioning piece is consistent with the shape of the spoiler.

5. The workpiece emulation device of claim 1, wherein, The installation assembly further includes a mounting piece connected with the fixed rod; The mounting piece includes a positioning block; When the workpiece simulation device is simulated to be assembled on the tail door, the positioning block is used for abutting against the positioning surface.

6. The workpiece emulation device of claim 5, wherein, The end surface of the positioning block towards the positioning surface is further provided with a magnet, and the magnet is adsorbed and connected with the positioning surface.

7. The workpiece emulation device of claim 6, wherein, The mounting piece further includes a mounting arm connected with the fixed rod, and the positioning block is fixed to one end of the mounting arm away from the fixed rod.

8. The workpiece emulation device of any of claims 5-7, wherein, Along the axis direction of the fixed rod, the installation assembly includes the first mounting block, the second mounting block and the third mounting block arranged in a straight line, wherein the second mounting block is located between the first mounting block and the third mounting block; The positioning unit includes a first directional positioning pin and a second directional positioning pin, and one first directional positioning pin is arranged on the first mounting block and the second mounting block; the second directional positioning pin is arranged on the third mounting block; The mounting piece is four, and the first mounting block and the third mounting block are respectively provided with two mounting pieces; The two mounting pieces of the first mounting block are arranged symmetrically along the axis of the fixed rod, and the two mounting pieces of the third mounting block are arranged symmetrically along the axis of the fixed rod; When the workpiece simulation device simulates being assembled on the tailgate, the second directional positioning pin and the first directional positioning pin are used to be fixed with the corresponding positioning holes, and the mounting piece is used to abut against the positioning face.

9. The workpiece emulation device of claim 3, wherein, The first mounting block and the second mounting block are further provided with auxiliary positioning blocks, which are arranged towards the positioning face. When the workpiece simulation device simulates being assembled on the tailgate, the second directional positioning pin and the first directional positioning pin are used to be fixed with the corresponding positioning holes, and the auxiliary positioning blocks are used to abut against the positioning face.

10. An error measuring tool characterized by: The workpiece simulation device comprises the first mounting block and the second mounting block.

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