Positioning and supporting bracket and side wall positioning and supporting bracket assembly

Abstract

The utility model relates to the technical field of automobiles, in particular to a positioning and supporting bracket and a side wall positioning and supporting bracket assembly, the positioning and supporting bracket comprises a base and a bracket arranged on the base, and further comprises a positioning piece and a fixing piece which are detachably connected to the bracket, and three datum holes formed in the bracket, the three datum holes are not located in the same straight line, the three datum holes form a space coordinate system, and the multiple positioning pieces and the multiple fixing pieces are located at the theoretical positions, relative to the space coordinate system, of a workpiece respectively. The positioning and supporting bracket overcomes the defects that an existing positioning and supporting bracket for a workpiece in a three-coordinate measuring platform is special for a special car, and cost investment is large, the positions of the positioning pieces and the fixing pieces are changed by increasing and decreasing the number of the positioning pieces and the number of the fixing pieces, one set of positioning and supporting bracket can be matched with different workpieces for supporting and positioning, and the working efficiency is improved. Complete replacement is not needed, and the production cost can be greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile, more particularly to a positioning support support and side wall positioning support support assembly. BACKGROUND

[0002] In the production and manufacturing process of the body-in-white, the side wall assembly is measured and evaluated in full size, which provides favorable guarantee for achieving the qualified rate target of the body-in-white. The side wall assembly is composed of more than 100 single stamping parts combined and welded, and the size requirement of controlling precision within ±1mm is realized after welding and assembling. The three-coordinate measurement technology is currently the only and reliable important method for evaluating the side wall assembly, and the three-coordinate measurement needs to support and accurately position the side wall assembly to ensure the accuracy and authenticity of the measurement precision.

[0003] In the existing three-coordinate measurement platform, due to the limited three-coordinate measurement space and the large number of vehicle models, the positioning needs very accurate dowels, so a set of corresponding positioning support for measurement must be set for each vehicle model, and the positioning support cannot be shared by other vehicle models due to the size and modeling differences of the vehicle models. When measuring on the three-coordinate measurement platform, each time a vehicle model or a workpiece is replaced for measurement, the current positioning support needs to be removed, and the positioning support of the next workpiece to be measured needs to be reinstalled on the measurement platform, which is very time-consuming and labor-intensive, and each set of positioning support cannot be shared, which leads to a large cost investment. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the deficiency that the existing workpiece positioning support support in the three-coordinate measurement platform is dedicated to a vehicle, and the cost investment is large, and provides a positioning support support and side wall positioning support support assembly. The utility model discloses a set of positioning support support can adapt to different workpieces for supporting and positioning by increasing or decreasing the number of positioning members and fixing members and changing the positions of the positioning members and fixing members, without replacing the whole set, which can greatly reduce the production cost.

[0005] To solve the above technical problems, the utility model adopts the technical scheme that:

[0006] A positioning support support, comprising a base, a support provided on the base, a positioning member and a fixing member detachably connected to the support, and three reference holes provided on the support, the three reference holes are not located on the same straight line, the three reference holes form a spatial coordinate system, and the positioning members and the fixing members are located at the theoretical positions of the workpieces relative to the spatial coordinate system.

[0007] It should be noted that the reference hole is a high-precision reference coordinate, three reference holes are set and the three reference holes are not on the same straight line, the relative positions of the three reference holes are fixed and no longer change, so a space coordinate system can be established, for different workpieces of the automobile, in the design process, there are RPS points and installation fixed points, the RPS point is a positioning reference point of the workpiece in the design, which is used to ensure the consistency of the part in the machining, installation and detection process in the automobile coordinate system; and the installation fixed point is a bolt tightening point or a welding point of the workpiece in subsequent installation, in three coordinate measurement, when the workpiece is fixed on the positioning support bracket, the workpiece is simulated to be consistent with the field welding fixture when tightening or welding, so the installation fixed point also has a specific position; in this way, since the RPS point and the installation fixed point are designed, the relative relationship between the PRS point and the installation fixed point of the workpiece is converted into the space coordinate system established by the three reference holes, each PRS point and each installation fixed point will have a theoretical position in the space coordinate system, at this time, only the detachable positioning piece and the fixing piece need to be installed on the theoretical position, so that the accurate positioning of the workpiece after being erected on the positioning support bracket can be ensured, and the workpiece is simulated to be fixed. When different workpieces are switched, the whole positioning support bracket does not need to be disassembled and replaced, only the RPS point and the installation fixed point in the design of another workpiece need to be converted into the space coordinate system established by the three reference holes of the positioning support bracket of the utility model, the relative theoretical position coordinate information is calculated, and the position of the positioning piece and the fixing piece on the bracket is changed according to the data, so that a new positioning support bracket corresponding to the workpiece can be formed.

[0008] It should be noted that if the positions of the positioning piece and the fixing piece change in depth, the length of the adapter rod can be cut by an external cutter, and the adapter rod is used as length compensation to realize the installation of the positioning piece and the fixing piece.

[0009] The utility model discloses a positioning support bracket which can be used for supporting and positioning different workpieces by changing the number and position of the positioning piece and the fixing piece, so that the whole positioning support bracket does not need to be replaced, and the production cost can be greatly reduced.

[0010] Further, the utility model also includes four wheel assemblies respectively arranged at four corners of the base. The wheel assemblies can improve the mobility of the utility model, and facilitate the adaptive adjustment of the position of the positioning support bracket in the three coordinate measurement platform according to the size of different workpieces.

[0011] Further, the caster assembly comprises a rotating base, a rotating block, a caster and a bolt, one end of the rotating block is rotationally connected with the rotating base, the caster is fixed on the other end of the rotating block, one end of the bolt is movably penetrated through the rotating base and can be inserted into the rotating block, a limiting hole is formed on the rotating block and is opposite to the position of the bolt.

[0012] Further, in order to improve the convenience of use of the utility model, the caster assembly is designed to be rotatable and overturnable, when moved to a specified position, the caster can be overturned on the base through the rotational connection of the rotating base and the rotating block, so that the positioning support bracket cannot be moved and is fixed at the position, and the bolt cannot rotate when the caster is used, so that normal use is realized.

[0013] Further, the utility model also comprises a supporting block assembly which is detachably connected with the bracket, and the supporting block assembly is located at the theoretical position of the workpiece relative to the space coordinate system.

[0014] Further, the supporting block assembly comprises a supporting block, an adjusting screw and a mounting block, the mounting block is detachably connected with the bracket, the adjusting screw is penetrated through the mounting block and is rotationally connected with the mounting block in a threaded mode, one end of the adjusting screw is fixed with the supporting block, and the other end of the adjusting screw is further provided with a first handle.

[0015] Further, the supporting block can be made of nylon.

[0016] The supporting block assembly can be adjusted in height through the adjusting screw, the first handle can be rotated to drive the supporting block and the adjusting screw to ascend, and then the workpiece placed on the supporting block can be lifted a little, so that the workpiece can be conveniently carried down by the operator.

[0017] Further, the utility model also comprises a plurality of locking pins arranged on the base, the locking pins are penetrated through the base and are rotationally connected with the base in a threaded mode, and one end of the locking pin located above the base is further provided with a second handle.

[0018] Generally, the three-coordinate measuring platform is provided with transversely and longitudinally staggered clamping grooves, and the locking pins can lock the base in the clamping grooves to limit the position of the positioning support bracket.

[0019] Further, the top of the bracket is further provided with a lifting ring which can be used for aerial lifting.

[0020] Further, the bracket comprises a longitudinal stand which is vertically fixed on the base, and further comprises a plurality of branches which are arranged perpendicularly to the longitudinal stand, the plurality of branches are detachably connected with the longitudinal stand, and the positioning member, the fixing member and the supporting block assembly are respectively arranged on the plurality of branches.

[0021] Further, the length of the branch can be adjusted according to the theoretical position of the workpiece relative to the spatial coordinate system.

[0022] It should be noted that the branch and the longitudinal stand are detachably connected with the positioning member, the fixing member and the support block assembly, and according to the different theoretical positions of the workpiece, a branch with a suitable length is selected for installation.

[0023] Further, the positioning member comprises a positioning pin, and the fixing member comprises a horizontal quick clamp and / or a vertical quick clamp.

[0024] It should be noted that the horizontal quick clamp and / or the vertical quick clamp can be selected according to the profile and the fixing type of the workpiece, and the longitudinal stand or the branch is further provided with a limiting block matched with the horizontal quick clamp and / or the vertical quick clamp, and the clamping abutting portion of the horizontal quick clamp and / or the vertical quick clamp is in mutual alignment with the limiting block, and the workpiece can be clamped between the limiting block and the abutting portion.

[0025] The utility model also provides a side wall positioning support bracket assembly, including four positioning support brackets, four positioning support brackets respectively position support side wall's A column part, B column part, C column part and tail part.

[0026] Since the side wall is combined and welded by a plurality of single stamping parts, the side wall has a large volume and a complex profile and shape, and generally needs to be fixed at each part in front, middle and rear to ensure the accuracy and authenticity of the measurement accuracy, so four single positioning support brackets are designed to support and accurately position one vehicle side wall.

[0027] Different numbers of positioning support brackets can be reasonably selected for cooperation in the face of different workpieces, and the utility model has very high operation flexibility.

[0028] Compared with the prior art, the utility model has the beneficial effects that:

[0029] (1) When different workpieces are switched, the utility model does not need to be disassembled and replaced, but only needs to convert the RPS point and the installation fixing point of another workpiece design into the spatial coordinate system established by the three reference holes, calculate the relative theoretical position coordinate information, change the positions of the positioning member and the fixing member on the bracket according to the data, and a new positioning support bracket corresponding to the workpiece can be formed.

[0030] (2) The utility model can adapt different workpieces for supporting and positioning by increasing or decreasing the number of the positioning member and the fixing member and changing the positions of the positioning member and the fixing member, without replacing the whole set, which can greatly reduce the production cost and improve the operation rate. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0032] Figure 2 It is Figure 1 It is a partial enlarged view of A in the middle;

[0033] Figure 3 It is Figure 1 It is a partial enlarged view of B in the middle;

[0034] Figure 4 It is Figure 1 It is a partial enlarged view of C in the middle;

[0035] Figure 5 It is an application schematic diagram of the positioning support bracket applied to the side wall in the utility model.

[0036] The illustration marks are as follows:

[0037] 1-base, 2-support, 21-longitudinal stand, 22-branch, 3-positioning piece, 4-fixing piece, 41-clamping abutting block, 5-reference hole, 6-wheel assembly, 61-rotating seat, 62-rotating block, 63-wheel, 64-latch, 71- support block, 72-adjusting screw, 73-mounting block, 74-first handle, 8-locking pin, 81-second handle, 91-sling, 100-A column part, 200-B column part, 300-C column part, 400-tail part, 500-three coordinate measurement platform. DETAILED DESCRIPTION

[0038] The utility model will be further explained in combination with specific implementation manners. Among them, the drawings are only used for example explanation, and the representation is only a schematic diagram, and cannot be understood as the limitation of the patent; in order to better explain the embodiment of the utility model, some components of the drawings will be omitted, enlarged or reduced, and the size of actual product is not represented; for those skilled in the art, it is understandable that some well-known structures in the drawings and their description can be omitted.

[0039] The same or similar numerals in the drawings of the embodiment of the utility model correspond to the same or similar components; in the description of the utility model, it is understood that if there are terms "upper", "lower", "left", "right" and the like indicating the orientation or positional relationship, it is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a particular orientation, a particular orientation and operation, therefore the positional relationship of the term in the drawing is only used for example explanation, and cannot be understood as the limitation of the patent, for ordinary skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.

[0040] Embodiment 1

[0041] As Figures 1 to 2 shown in the first embodiment of the present embodiment, a positioning support bracket is disclosed, comprising a base 1, and a bracket 2 arranged on the base 1, further comprising a positioning piece 3 and a fixing piece 4 detachably connected to the bracket 2, and three reference holes 5 arranged on the bracket 2, the three reference holes 5 are not located on the same straight line, and the three reference holes 5 form a spatial coordinate system, and the positioning piece 3 and the fixing piece 4 are respectively located at the theoretical position of the workpiece relative to the spatial coordinate system.

[0042] As Figure 1 shown, the bracket 2 comprises a longitudinal stand 21 vertically fixed on the base 1, and further comprises a plurality of branches 22 arranged perpendicularly to the longitudinal stand 21, the plurality of branches 22 are detachably connected to the longitudinal stand 21, and the positioning piece 3, the fixing piece 4 and the block assembly are arranged on the plurality of branches 22.

[0043] In the present embodiment, the length of the branch 22 can be adjusted according to the theoretical position of the workpiece relative to the spatial coordinate system.

[0044] It should be noted that the branch 22 and the longitudinal stand 21, as well as the positioning piece 3, the fixing piece 4 and the block assembly are all detachably connected, and according to the different theoretical positions of the workpiece, the branch 22 with appropriate length is selected for installation.

[0045] In the present embodiment, the number of the positioning piece 3 is one set, and the number of the fixing piece 4 is three sets.

[0046] It should be noted that the three sets of fixing pieces 4 can ensure the stability of the fixing.

[0047] In the present embodiment, the positioning piece 3 comprises a positioning pin;

[0048] As Figure 2 shown, the fixing piece 4 comprises a horizontal quick clamp and a vertical quick clamp.

[0049] As Figure 2 shown, the fixing piece 4 further comprises a clamping abutting block 41 corresponding to the clamping jaw of the horizontal quick clamp or the vertical quick clamp, and the clamping abutting block 41 can be designed as a profiled block matched with the profile of the workpiece.

[0050] It should be noted that the horizontal quick clamp and / or the vertical quick clamp can be selected according to the profile of the workpiece and the fixing type, and the longitudinal stand 21 or the branch 22 is further provided with a limiting block matched with the horizontal quick clamp and / or the vertical quick clamp, and the clamping jaw abutting portion of the horizontal quick clamp and / or the vertical quick clamp is in mutual alignment with the limiting block, and the workpiece can be clamped between the limiting block and the abutting portion.

[0051] The principle of the embodiment is that the reference hole 5 is a high-precision reference coordinate, three reference holes 5 are arranged and the three reference holes 5 are not on the same straight line, the relative positions of the three reference holes 5 are fixed and do not change, so a space coordinate system can be established, and different workpieces of the automobile have RPS points and installation fixed points in the design process. The RPS point is a positioning reference point of the workpiece in the design, which is used to ensure the consistency of the part in the machining, installation and detection process in the automobile coordinate system. The installation fixed point is a bolt tightening point or a welding point of the workpiece in the subsequent installation. In three-coordinate measurement, the workpiece is fixed on the positioning support bracket to simulate the consistency of the workpiece with the field welding fixture when tightening or welding, so the installation fixed point also has a specific position. In this way, since the RPS point and the installation fixed point are designed, the relative relationship between the PRS point and the installation fixed point of the workpiece is converted into the space coordinate system established by the three reference holes 5. Each PRS point and each installation fixed point has a theoretical position in the space coordinate system. At this time, the positioning piece 3 and the fixing piece 4 connected detachably are installed on the theoretical position, so as to ensure the accurate positioning of the workpiece after being erected on the positioning support bracket, and the workpiece is simulated to be fixed. When different workpieces are switched, the embodiment does not need to replace the entire positioning support bracket, but needs to convert the RPS point and the installation fixed point of another workpiece designed into the space coordinate system established by the three reference holes 5 of the positioning support bracket, calculate the relative theoretical position coordinate information, and change the positions of the positioning piece 3 and the fixing piece 4 on the bracket 2 according to the data, so as to form a new positioning support bracket corresponding to the workpiece.

[0052] The advantage of the embodiment is that the embodiment can adapt different workpieces for supporting and positioning by increasing or decreasing the number of the positioning piece 3 and the fixing piece 4 and changing the positions of the positioning piece 3 and the fixing piece 4, without replacing the entire set, so as to greatly reduce the production cost.

[0053] Embodiment 2

[0054] The embodiment is similar to embodiment 1, and the difference is that in the embodiment:

[0055] As shown in Figure 3 , the embodiment further includes four caster assemblies 6 arranged at four corners of the base 1. The caster assembly 6 can improve the mobility of the embodiment and facilitate the adaptive adjustment of the position of the positioning support bracket in the three-coordinate measurement platform 500 according to the size of different workpieces.

[0056] As shown in Figure 3As shown, the caster assembly 6 includes a rotating seat 61, a rotating block 62, a caster 63 and a pin 64, the rotating seat 61 is fixed on the base 1, one end of the rotating block 62 is rotatably connected with the rotating seat 61, the caster 63 is fixed on the other end of the rotating block 62, one end of the pin 64 is movably penetrated through the rotating seat 61 and can be inserted into the rotating block 62, a limiting hole is formed on the rotating block 62 and opposite to the position of the pin 64.

[0057] In order to improve the convenience of use of the embodiment, the caster assembly 6 is designed to be rotatable and overturnable, when moved to a specified position, the caster 63 can be overturned on the base 1 through the rotating connection of the rotating seat 61 and the rotating block 62, so that the positioning support bracket cannot be moved and is fixed at the position, the pin 64 fixes the caster 63 and cannot be rotated when the caster 63 is used, and normal use is realized.

[0058] As shown in Figure 3 , it further includes a plurality of locking pins 8 arranged on the base 1, the locking pins 8 are penetrated through the base 1 and are threadedly rotatably connected with the base 1, and one end of the locking pin 8 located above the base 1 is further provided with a second handle 81.

[0059] As shown in Figure 5 , the three-coordinate measuring platform 500 is provided with transversely and longitudinally staggered clamping grooves, and the locking pin 8 can lock the base 1 in the clamping grooves to limit the position of the positioning support bracket.

[0060] Embodiment 3

[0061] The embodiment is similar to the embodiment 1, and the difference is that in the embodiment, the base 1 is provided with a plurality of locking pins 8.

[0062] As shown in Figure 1 and Figure 4 , it further includes a supporting block assembly which is detachably connected with the bracket 2 and is located at the theoretical position of the workpiece relative to the spatial coordinate system.

[0063] As shown in Figure 4 , the supporting block assembly includes a supporting block 71, an adjusting screw 72 and a mounting block 73, the mounting block 73 is detachably connected with the bracket 2, the adjusting screw 72 is penetrated through the mounting block 73 and is threadedly rotatably connected with the mounting block 73, one end of the adjusting screw 72 is fixed with the supporting block 71, and the other end of the adjusting screw 72 is further provided with a first handle 74.

[0064] In the embodiment, the supporting block 71 can be made of nylon.

[0065] The supporting block assembly can be adjusted in height by the adjusting screw 72, the first handle 74 can be rotated to make the adjusting screw 72 drive the supporting block 71 to rise, and then the workpiece placed on the supporting block 71 can be lifted a little, which facilitates the operator to carry down the workpiece.

[0066] In this embodiment, the top of the support 2 is also provided with a lifting ring 9, which can be used for aerial hoisting.

[0067] Example 4

[0068] like Figure 5 As shown, this embodiment also provides a side panel positioning support bracket assembly, including four positioning support brackets as described above. The four positioning support brackets are fixed on a coordinate measuring platform 500, and the four positioning support brackets respectively position and support the A-pillar 100, B-pillar 200, C-pillar 300 and tail 400 of the side panel.

[0069] Since the side panel is assembled and welded from multiple stamped parts, it is large in size and has a complex shape and form. Generally, it is necessary to fix the front, middle and rear parts to ensure the accuracy and authenticity of the measurement. Therefore, four single positioning support brackets are designed to support and accurately position a vehicle side panel.

[0070] When dealing with different workpieces, different numbers of positioning support brackets can be selected for coordinated operation. This embodiment has very high operational flexibility.

[0071] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A positioning support stand comprising a base (1) and a stand (2) arranged on the base (1), characterized in that, The positioning piece (3) and the fixing piece (4) are detachably connected to the support (2), and three reference holes (5) are arranged on the support (2), the three reference holes (5) are not located on the same straight line, the three reference holes (5) form a spatial coordinate system, and the positioning pieces (3) and the fixing pieces (4) are respectively located at theoretical positions of the workpiece relative to the spatial coordinate system.

2. A positioning support bracket according to claim 1, wherein The caster assembly (6) is arranged on each of four corners of the base (1).

3. A positioning support bracket according to claim 2, wherein The caster assembly (6) comprises a rotating seat (61), a rotating block (62), a caster (63) and a bolt (64), the rotating seat (61) is fixed on the base (1), one end of the rotating block (62) is rotatably connected to the rotating seat (61), the caster (63) is fixed on the other end of the rotating block (62), one end of the bolt (64) is movably penetrated through the rotating seat (61) and can be inserted into the rotating block (62), and a limiting hole is arranged on the rotating block (62) and opposite to the position of the bolt (64).

4. The positioning support bracket of claim 1, wherein, The support (2) is detachably connected to the support (2), and the support (2) is detachably connected to the support (2).

5. A positioning support bracket according to claim 4, wherein The support (2) comprises a longitudinal stand (21) vertically fixed on the base (1), a plurality of branches (22) perpendicular to the longitudinal stand (21), the plurality of branches (22) are detachably connected to the longitudinal stand (21), and the positioning piece (3), the fixing piece (4) and the support assembly are arranged on the plurality of branches (22), respectively.

6. The positioning support bracket of claim 1, wherein, The positioning piece (3) comprises a positioning pin; the fixing piece (4) comprises a horizontal quick clamp and / or a vertical quick clamp.

7. The positioning support bracket of claim 1, wherein The positioning support support (2) comprises four positioning support supports, and the four positioning support supports are respectively arranged on the A column part (100), the B column part (200), the C column part (300) and the tail part (400) of the side wall.

8. The positioning support bracket of claim 4, wherein, ​ 9. A positioning support bracket according to claim 8, wherein ​ 10. A side wall positioning support bracket assembly characterized by, ​

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