Low-cost support positioning system and method
By designing a low-cost base positioning system including positioning platform, carrier, power member, motion converter and positioning member, the failure of the support base to achieve flexibility compatibility and unstable three-axis flexible support base end accuracy in the prior art is solved. The problem of this achieves low-cost and flexible positioning of the base.
Patent Information
- Application Number
- CN202411362678.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-02-07
AI Technical Summary
The existing dedicated measurement base cannot achieve flexibility compatibility, and the new model needs to invest in redevelopment, which is huge; while the traditional three-axis flexible measurement base shaft increase, the end accuracy is unstable, the cost increases, the volume is huge, and it is difficult to arrange.
A low-cost base positioning system is designed, including a support unit composed of a positioning platform and a carrier, and an adjustment unit composed of a power member, a moving converter and a positioning member. The flexible positioning of the base is achieved through the combination of these components. .
The flexible use of the measurement base is achieved, and the new model does not require a new expenditure base, avoiding the problem of low end accuracy of the traditional three-axis flexible mechanism, and the overall mechanism will not become huge when increasing the number of shafts.
Smart Images
Figure CN119392945A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of support base positioning, and in particular to a low-cost support base positioning system and method. Background Art
[0002] With the development of measurement technology, component size measurement has gradually shifted from traditional fixture measurement to a solution of measuring supports plus optical measuring equipment. The supports used in the solution of measuring supports plus optical measuring equipment are divided into special measuring supports and three-axis flexible measuring supports.
[0003] However, the dedicated measuring support base cannot achieve flexible compatibility, and new models need to be redeveloped, which requires huge investment and takes up valuable workshop space resources. However, the traditional three-axis flexible measuring support base has unstable end-point accuracy as the number of axes increases, and the cost increases and the size is bulky. For the dense support points in the stamping single-piece reference layout, there will be mutual interference between the mechanisms, making it difficult to arrange. Summary of the invention
[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.
[0005] In view of the fact that the special measuring base existing in the above-mentioned and / or existing base positioning cannot achieve flexible compatibility, new models need to be redeveloped and invested, which requires huge investment and occupies valuable workshop space resources. In addition, the terminal accuracy of the traditional three-axis flexible measuring base is unstable after the number of axes increases, and the cost increases, the volume is bulky, and it is difficult to arrange. The present invention provides the following technical solutions: a low-cost base positioning system, comprising a supporting unit composed of a positioning platform and a bearing member, and an adjusting unit composed of a power member, a motion conversion member and a positioning member, the positioning platform is provided with a positioning hole, the bearing member is provided with a limiting hole, the positioning hole corresponds to the limiting hole, the power member is provided on the bearing member, the motion conversion member is provided on the power member and cooperates with the power member, and the positioning member is provided on the motion conversion member.
[0006] As a preferred solution of the low-cost support base positioning system described in the present invention, the positioning member includes a bearing block, a reference member and a clamping member, the reference member is arranged on the bearing block, and the clamping member is arranged on the bearing block.
[0007] As a preferred solution of the low-cost support base positioning system described in the present invention, a tooth hole and a mounting hole are provided on the supporting block, the tooth hole is provided corresponding to the central axis provided on the motion conversion component, the mounting hole is provided at one end of the supporting block away from the tooth hole, and the reference component and the clamping component are provided in the mounting hole.
[0008] As a preferred solution of the low-cost support base positioning system of the present invention, there are 24 teeth in the tooth holes.
[0009] As a preferred solution of the low-cost support base positioning system described in the present invention, there are at least 4 mounting holes distributed in a sequence.
[0010] A low-cost support base positioning method, comprising the above-mentioned low-cost support base positioning system, and also comprising
[0011] Coordinate the positioning platform and number the coordinates of each positioning hole;
[0012] Obtain the support range by adjusting the unit;
[0013] Project parts, filter the range of support base positioning points, and obtain the coordinates of support base positioning holes;
[0014] Select the support model and install the support
[0015] As a preferred solution of the low-cost support base positioning method described in the present invention, the specific operation of obtaining the support range through the adjustment unit is to record the position where the positioning member stops as a supportable point, rotate the positioning member one circle, and record all supportable points within one circle of rotation as the support range of a single support base, so that the limit holes correspond to the positioning holes on the positioning platform in sequence, and record all single support base support ranges to obtain the support range.
[0016] As a preferred solution of the low-cost support base positioning method described in the present invention, the specific operation of screening the support base positioning point range is to overlap the projected part with the support range, determine the support base positioning point range, screen the single support base support range in which the part projection outer contour overlaps the support range in the support base positioning point range, obtain the single support base coordinates, and obtain the coordinates of the positioning hole where this support base is located.
[0017] As a preferred solution of the low-cost support base positioning method described in the present invention, the specific operation of selecting the support base model is to confirm the selected support base model based on the height difference of the parts and the distance from the base plate.
[0018] As a preferred solution of the low-cost support base positioning method described in the present invention, wherein: the installation of the support base is specifically to select a support base positioning point from the screened support base positioning point range and convert it into the coordinates of the corresponding positioning hole where the support base is located, and the coordinates of the positioning hole on the corresponding positioning platform, and the support base installation is completed in a manner of first oblique angle positioning and then oblique angle fixing.
[0019] The beneficial effects of the present invention are as follows: the present invention realizes the flexible use of the measuring support base at a low cost through the setting of the supporting unit and the adjusting unit, and no new support base is required for new car models. The low-cost support base proposed by the present invention can be accurately positioned through the low-cost support base positioning method, thus avoiding the problem of low end precision of the traditional three-axis flexible mechanism, and increasing the number of axes will not make the overall mechanism bulky. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:
[0021] Figure 1 This is an overall schematic diagram of the low-cost support base positioning system.
[0022] Figure 2 This is a partially enlarged schematic diagram of the low-cost support base positioning system.
[0023] Figure 3 It is a schematic diagram of the positioning part structure.
[0024] Figure 4 This is a schematic diagram of the coordinate system of the positioning platform.
[0025] Figure 5 Schematic diagram of support range and single base support range.
[0026] Figure 6 A local schematic diagram of the support range covered by the projected part.
[0027] Figure 7 Schematic diagram of the selection method for the adaptability height range of parts. DETAILED DESCRIPTION
[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.
[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.
[0031] Example 1
[0032] Reference Figure 1 to Figure 3 , which is the first embodiment of the present invention, provides a low-cost support base positioning system, including a support unit 200 composed of a positioning platform 101 and a bearing member 102, and an adjustment unit 200 composed of a power member 201, a motion conversion member 202 and a positioning member 203.
[0033] Specifically, a positioning hole 101a is provided on the positioning platform 101, and a limiting hole 102a is provided on the supporting member 102. The positioning hole 101a and the limiting hole 102a are provided correspondingly, and the positioning hole 101a and the limiting hole 102a can be locked by bolts, positioning pins, etc., so as to lock the positioning platform 101 and the supporting member 102. The power member 201 is provided on the supporting member 102, and the actual expression form can be but is not limited to a driving motor. The motion conversion member 202 is provided on the power member 201 and cooperates with the power member 201, and is used to convert the driving mode of the power member 201 into a lifting motion mode. The positioning member 203 is provided on the motion conversion member 202.
[0034] Furthermore, the positioning member 203 includes a supporting block 203a, a reference member 203b and a clamping member 203c. A tooth hole 203a-1 and a mounting hole 203a-2 are provided on the supporting block 203a. The tooth hole 203a-1 is provided corresponding to the central axis 202a provided on the motion conversion member 202. The mounting hole 203a-2 is provided on the supporting block 203a at one end away from the tooth hole 203a-1. The reference member 203b and the clamping member 203c are provided in the mounting hole 203a-2, which is a quick-cut structure. The reference member 203b is provided on the supporting block 203a, and the clamping member 203c is provided on the supporting block 203a.
[0035] Preferably, there are 24 teeth in the tooth hole 203a-1, so that the support block 203a can switch its position around the central axis 202a in a movement manner with an interval of 15°. There are at least 4 mounting holes 203a-2 and other sequence distributions, which are used to quickly install the reference part 203b and the clamping part 203c, and at the same time, the reference part 203b can be switched in position to adapt to the reference surface support of different vehicle models and increase the coverage of the support.
[0036] When in use, the positioning hole 101a and the limit hole 102a are locked by the positioning pin and the bolt, so as to fix the bearing member 102 and the positioning platform 101, and the power member 201 is driven by the power member 201 and the power direction is converted by the motion conversion member 202, so that the axial movement of the power member 201 is converted into a lifting movement, so as to lift and lower the positioning member 203, so that the positioning member 203 meets the height difference and lifting height requirements of the vehicle body parts, thereby meeting the longitudinal flexibility requirements of the support base, and the bearing block 203a is driven to rotate around the central axis 202a to drive the reference member 203b and the clamping member 203c to rotate, so that the reference member 203b and the clamping member 203c can meet the different position requirements of the special-shaped parts and meet the planar flexibility requirements of the support base.
[0037] In summary, the support base of this scheme meets the longitudinal and planar flexibility requirements of different parts. At the same time, the support base is simpler, more convenient and less costly than the traditional three-axis flexible support base. Through different combinations of the support base of this scheme, while meeting the needs of parts in different working conditions, it is more versatile and more suitable for mass production.
[0038] Example 2
[0039] Reference Figure 1 to Figure 6 , which is a second embodiment of the present invention, provides a low-cost support base positioning method, and the aerial work safety device includes the low-cost support base positioning system in embodiments 1 and 2, and also includes:
[0040] The positioning platform 101 is coordinated and each positioning hole 101a is numbered, including but not limited to: Figure 4 As shown, any positioning hole 101a at the four corners of the positioning platform 101 is used as the coordinate origin, the horizontal direction is the X axis, the vertical direction is the Y axis, and the distance between adjacent positioning holes 101a is 1 unit distance, so as to calibrate the coordinate position of each positioning hole 101a.
[0041] like Figure 5 As shown, the support range is obtained by adjusting the unit 200, and the position where the positioning member 203 stops is recorded as a support point. The positioning member 203 rotates one circle, and all the support points within one circle are recorded as the support range of a single support base, such as Figure 5The small circle position indicated in B is used to make the limiting hole 102a correspond to the positioning hole 101a on the positioning platform 101 in sequence, and the support range of all single bases is recorded to obtain the support range, such as Figure 5 As shown in the range A, it should be noted that in the simulation calculation process, at least four mounting holes 203a-2 opened on the bearing block can all be calculated to obtain a more comprehensive support range.
[0042] like Figure 6 The projected part shown in the figure is used to screen the support base positioning point range, specifically, the part projection diagram is compared with the obtained support range, the support base positioning points within the part projection range are determined, and the support base positioning point range is obtained. The single support base support range where the part projection outer contour part overlaps with the support range is screened in the support base positioning point range, and a suitable support base positioning point position is selected therefrom to obtain the coordinates of this single support base, and then the coordinates of the positioning hole 101a where this support base is located are obtained by conversion;
[0043] Example 3
[0044] Reference Figure 1 to Figure 7 , which is the third embodiment of the present invention. This embodiment is different from the first two embodiments in that it provides a low-cost support base positioning method, further comprising:
[0045] Select the support model and install the support. Select the support with appropriate applicability height range and load-bearing capacity from the pre-made low-cost support with different applicability height ranges and load-bearing capacity to meet the height difference and weight requirements of different parts.
[0046] Preferably, the steps for selecting the adaptability height range of the support base are as follows:
[0047] S1. Make a plane up and down around the direction of the parts to envelop the parts;
[0048] S2, shift the lower plane, i.e. the lowest point of the part, downward by 300 mm to obtain the support base plate plane;
[0049] S3, measuring the distance from each reference point to the support base plate;
[0050] S4. According to the adjustable range of the distance, select the support base model with different adaptability height ranges.
[0051] To install the support base, select a support base positioning point from the screened support base positioning point range and convert it into the coordinates of the corresponding positioning hole 101a where the support base is located; according to the coordinates of the positioning hole 101a on the corresponding positioning platform 101, first insert the positioning pin into the diagonally opposite limit hole 102a and then into the positioning hole 101a to complete the locking; then insert the bolt into the other two limit holes 102a and the positioning hole 101a to complete the positioning and fixing, thereby completing the support base installation.
[0052] In summary, the low-cost support base positioning system combined with the low-cost support base positioning method can install the positioning platform 101 at any position, and while the low-cost support base positioning system meets the three-axis flexible positioning, the overall structure is more convenient and universal. Combined with the low-cost support base positioning method, no matter how the positioning platform 101 moves, the three-axis positioning can be accurately completed, and the different requirements of different vehicle body parts for the measuring platform on the reference surface and reference pins can be met.
[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.
Claims
1. A low-cost support base positioning system, characterized by: include, A support unit (100) comprises a positioning platform (101) and a bearing member (102), wherein the positioning platform (101) is provided with a positioning hole (101a), and the bearing member (102) is provided with a limiting hole (102a), and the positioning hole (101a) corresponds to the limiting hole (102a); The adjustment unit (200) comprises a power member (201), a motion conversion member (202) and a positioning member (203); the power member (201) is arranged on the bearing member (102); the motion conversion member (202) is arranged on the power member (201) and cooperates with the power member (201); and the positioning member (203) is arranged on the motion conversion member (202).
2. The low-cost support base positioning system according to claim 1, characterized in that: The positioning member (203) comprises a bearing block (203a), a reference member (203b) and a clamping member (203c); the reference member (203b) is arranged on the bearing block (203a); and the clamping member (203c) is arranged on the bearing block (203a).
3. The low-cost support base positioning system according to claim 2, characterized in that: The bearing block (203a) is provided with a tooth hole (203a-1) and a mounting hole (203a-2); the tooth hole (203a-1) is provided corresponding to a central axis (202a) provided on the motion conversion member (202); the mounting hole (203a-2) is provided at an end of the bearing block (203a) away from the tooth hole (203a-1); and the reference member (203b) and the clamping member (203c) are provided in the mounting hole (203a-2).
4. The low-cost support base positioning system as claimed in claim 3, characterized in that: There are 24 teeth in the tooth hole (203a-1).
5. The low-cost support base positioning system according to claim 3 or 4, characterized in that: There are at least four mounting holes (203a-2) distributed in a sequence.
6. A low-cost support base positioning method, comprising the low-cost support base positioning system according to any one of claims 1 to 5, and: Coordinate the positioning platform (101) and assign coordinate numbers to each positioning hole (101a); Obtaining a support range through an adjustment unit (200); Project the parts, select the range of the support base positioning points, and obtain the coordinates of the support base positioning holes (101a); Select the support model and install the support.
7. The low-cost support base positioning method according to claim 6, characterized in that: The specific operation of obtaining the support range through the adjustment unit (200) is to record the position where the positioning member (203) stops as a supportable point, rotate the positioning member (203) one circle, record all supportable points within one circle of rotation as the single-base support range, make the limiting holes (102a) correspond to the positioning holes (101a) on the positioning platform (101) in sequence, and record all single-base support ranges to obtain the support range.
8. The low-cost support base positioning method according to claim 7, characterized in that: The specific operation of screening the support base positioning point range is to overlap the projected part with the support range, determine the support base positioning point range, and screen the single support base support range in which the projected outer contour of the part overlaps with the support range in the support base positioning point range.
9. The low-cost support base positioning method according to claim 8, characterized in that: The specific operation of selecting the support base model is to confirm the selected support base model based on the height difference of the parts and the distance from the base plate.
10. The low-cost support base positioning method according to claim 9, characterized in that: The specific steps of installing the support base are to select a support base positioning point from the screened support base positioning point range and convert it into the coordinates of the corresponding positioning hole (101a) where the support base is located, and the coordinates of the positioning hole (101a) on the corresponding positioning platform (101) are used to complete the support base installation by first positioning the angle and then fixing the angle.