CN113199269B - Fan support milling surface drilling flexible clamp and clamping and positioning method - Google Patents
Fan support milling surface drilling flexible clamp and clamping and positioning method Download PDFInfo
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- CN113199269B CN113199269B CN202110529906.2A CN202110529906A CN113199269B CN 113199269 B CN113199269 B CN 113199269B CN 202110529906 A CN202110529906 A CN 202110529906A CN 113199269 B CN113199269 B CN 113199269B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention discloses a fan bracket milling surface drilling flexible clamp and a clamping and positioning method. The device comprises a bottom plate, a first positioning pressing block assembly, a second positioning pressing block assembly and a third positioning pressing block assembly, wherein the bottom plate is provided with the first positioning pressing block assembly capable of moving in the X direction, the second positioning pressing block assembly capable of being adjusted in the Y direction, and the third positioning pressing block assembly capable of being adjusted in the X direction and the Y direction respectively; and at least three height-adjustable support dowel assemblies; the first positioning pressing block assembly is used for actively positioning and clamping a first side positioning point of the fan support, the second positioning pressing block assembly is used for passively positioning and clamping two positioning points of a second side of the fan support, and the third positioning pressing block assembly is used for pre-tightening, positioning and clamping a third side positioning point of the fan support. When the clamp is used for machining the fan bracket products in the working procedures of face milling and reference hole drilling, the quick clamping switching of different types of products can be realized, the manufacturing quantity of the clamp in the product sample stage is reduced, the sample development period is shortened, and the prenatal development cost of the product shaping amount is reduced.
Description
Technical Field
The invention belongs to the technology of machining, clamping and positioning vehicle parts, and particularly relates to a technology of a vehicle fan bracket face milling and drilling clamp.
Background
The fan bracket is used for installing and fixing the fan blades in bearing holes of the bracket and is fixed on the engine. Different engines have different fan brackets. Because the fan support has an irregular shape, when the fan support is subjected to surface milling and drilling processing, a set of surface milling and drilling fixture can be only correspondingly used on the fan support with one shape, and the manufacturing cost of the fixture is huge. Meanwhile, when the design of the fan bracket is changed, and the shape and the size of the fan bracket are greatly changed, the clamp can not be used any more.
CN201820649592 describes an automobile part drilling and milling fixture, which comprises a fixture bottom plate, wherein four support rods are arranged on the upper surface of the fixture bottom plate, two edge positioning blocks are respectively arranged at two ends of the fixture bottom plate, the two edge positioning blocks and the four support rods form a placing platform, a product to be processed is located on the placing platform, two main positioning blocks are arranged at the middle position of the fixture bottom plate, a positioning pin mechanism is arranged between the two main positioning blocks, a positioning hole needs to be processed for the product to be processed, and the head of the positioning pin mechanism is aligned to the positioning hole to be processed. The Z-direction positioning and the main positioning blocks at the two ends are fixed, and the clamping device is not suitable for clamping a fan bracket with a complex and irregular shape.
Disclosure of Invention
The invention aims to provide a flexible clamp and a clamping and positioning method for surface milling and drilling procedures of different fan supports with irregular shapes, and the flexible machining and compatible use of the fan supports with different models on a surface milling and drilling clamp are realized.
One of the purposes of the invention is realized: the clamp for milling the surface and drilling the hole of the fan support realizes flexibility, and various products are compatible for use.
The specific technical scheme is as follows: the X-direction and Y-direction adjustable linear motion mechanism comprises a bottom plate, wherein a first support is arranged at one end of the bottom plate, a first positioning pressing block assembly capable of moving in the X direction and a linear motion driving device connected with the input end of the first positioning pressing block assembly are arranged on the first support, a second support is arranged at the other end of the bottom plate, a Y-direction track is arranged on the second support, at least two second positioning pressing block assemblies capable of being adjusted in the Y direction are arranged on the Y-direction track, a third support is arranged on the bottom plate between the first support and the second support, and third positioning pressing block assemblies capable of being adjusted in the X direction and the Y direction respectively are arranged on the third support; a positioning plate is arranged on the bottom plate in the enclosed area of the first support, the second support and the third support, a plurality of adjusting positioning holes are formed in the positioning plate, and at least three height-adjusting supporting positioning pin assemblies which are not on the same straight line are arranged on the plurality of adjusting positioning holes; the first positioning pressing block assembly is used for actively positioning and clamping a first side positioning point of the fan bracket, the second positioning pressing block assembly is used for passively positioning and clamping two positioning points of a second side of the fan bracket, and the third positioning pressing block assembly is used for pre-tightening, positioning and clamping a third side positioning point of the fan bracket; three height-adjustable support dowel assemblies are used to support the bottom surface of the fan support.
According to the technical scheme, three groups of positioning and pressing assemblies with the positions and the sizes capable of being adjusted randomly in three directions in the horizontal plane and a unique supporting and positioning pin structure capable of realizing supporting and adjusting of the fan support at any height and any position in space are mainly adopted, so that the space structure of the clamp capable of adapting to the fan supports of different shapes is adjusted according to different appearance profiles of the fan support, and scientific positioning, high-efficiency and flexible clamping of the fan supports of different types are realized. Therefore, compatible use and flexible processing of fan brackets with different shapes on the clamp are realized. The linear motion driving device can be an automatic mechanism or a manual structure.
The further optimized technical scheme is as follows: first location briquetting subassembly includes first slider, and first slider sets up on the X of first support is to the track, and a plurality of coaxial holes have been seted up along the Y direction to a terminal surface of first slider, have first location briquetting with the jogged joint, and the other end of first slider can be equipped with the spread groove, and the spread groove is used for connecting linear motion drive arrangement.
The one end of first slider sets up first positioning briquetting and adjusts the connecting hole, realizes different first positioning briquetting regulation connections in the X direction, is suitable for the fan bracket of different appearances, and first positioning briquetting easy dismounting is simple, and the other end of first slider sets up the spread groove and is convenient for linear motion drive arrangement to connect.
The plurality of threaded hole structures can realize Y-direction adjustable installation of the position of the first pressing block. Meanwhile, the first pressing block is provided with a U-shaped hole, so that the position can be finely adjusted.
This structure can be at X direction optional position installation one or more briquetting to the fan bracket position that adapts to different appearances changes, 11 easy dismounting of first locating briquetting, simple structure, low cost.
The further optimized technical scheme is as follows: the first positioning pressing block comprises a longitudinal connecting part connected with the coaxial hole, and the longitudinal connecting part is provided with an X-direction pressing rod part.
The end face of the X-direction pressure rod part is used for the contact clamping of the positioning point of the first side face of the fan support, the independent first positioning pressing block is simple in structure, and the first positioning pressing blocks in different forms can be replaced selectively according to the shapes of the fan supports in different shapes.
The longitudinal connecting portion and the X-direction pressing rod portion can adopt but are not limited to a T shape and a right-angle shape.
The further optimized technical scheme is as follows: the connecting groove is configured in an X-direction T shape with the top surface of the other end surface of the first sliding block open and extending downwards.
The T-shaped groove is configured into an open structure extending downwards along the opening on the top surface of the other end face of the first sliding block, so that the end part of the linear motion driving device is connected conveniently, and only the bayonet groove at the end part of the linear motion driving device is required to be inserted downwards from the opening on the top surface of the first sliding block, so that the assembly and disassembly are convenient.
Meanwhile, the Y-direction stroke change of the first positioning pressing block can be easily controlled by adjusting the length of the adjustable threaded connecting rod extending out of the end part of the oil cylinder.
The further optimized technical scheme is as follows: the X of first support is to first supporting shoe and the second supporting shoe that the track set up including the interval, and the top surface of first supporting shoe and second supporting shoe is configured into X respectively to orbital slide bottom surface, connects the stopper on first supporting shoe and the second supporting shoe respectively, and two faces in opposite directions of two stoppers are equipped with the chamfer angle face of buckling respectively, and the top surface of chamfer angle face of buckling is configured into X to orbital slide top surface, and the vertical face of chamfer angle face of buckling is configured into X to orbital slide medial surface.
Above-mentioned X is to structure of assembling of track modularization subassembly for each parts machining in the modularization subassembly is simple on the one hand, and on the other hand assembles through modularization subassembly and first slider, realizes slider and track simple to operate.
The further optimized technical scheme is as follows: the Y-direction track on the second support comprises a step structure arranged at the inner end of the top of the second support, the bottom surface of the step structure at the top of the second support is configured into the bottom surface of a slide way of the Y-direction track, and the vertical surface of the step structure at the top of the second support is configured into the end surface of the slide way of the Y-direction track; the second support is connected with a cover plate, the cover plate extends over the vertical surface of the step structure of the second support, the bottom surface of the cover plate extending portion is configured to be the top surface of a slide way of the Y-direction track, and the cover plate extending portion is provided with a Y-direction long through hole.
The Y-direction track is configured into a 1-assembly structure of the modular assembly, so that each part in the modular assembly is easy to machine.
The further optimized technical scheme is as follows: the second positioning pressing block assembly arranged in the Y-direction track comprises a longitudinal connecting part, the top surface of the longitudinal connecting part is connected with an adjusting locking bolt, and the adjusting locking bolt penetrates through a Y-direction long through hole of the cover plate extending part; the longitudinal connecting part is provided with an X-direction pressure rod part, and the X-direction pressure rod part penetrates out of the Y-direction track.
The second positioning pressing block assembly is spliced in the spliced Y-direction track, the position of the second positioning pressing block can be conveniently adjusted and locked by adjusting the locking bolt, and the end face of the X-direction pressing rod part is used for contact clamping of the positioning point of the second side face of the fan support.
The further optimized technical scheme is as follows: the third support is provided with an X-direction long through hole, the third positioning pressing block assembly comprises a screw rod penetrating through the X-direction long through hole, and the screw rods on two end faces of the X-direction long through hole are connected with locking nuts.
The third support is provided with the X-direction long through hole, the screw and the locking nut simplify the structure, the number of parts is small, and the adjustment in the X direction and the Y direction is realized at the same time.
The further optimized technical scheme is as follows: the supporting positioning pin assembly comprises a connecting bottom fixed on the positioning plate, a vertical connecting rod is arranged on the connecting bottom, a threaded connecting hole is formed in the top surface of the vertical connecting rod, the threaded connecting hole is connected with the supporting positioning pin, and the lower portion of the supporting positioning pin is connected with a locking nut.
The height adjusting structure is simple and convenient, and the installation and adjustment of the connecting bottom are convenient. The structure can conveniently realize the adjustment and the contraction of a plurality of supporting positioning pin assemblies at any height and any mounting position, and is simple and convenient to operate.
The second purpose of the invention is realized: the technical scheme of the clamping and positioning method of the fan bracket drilling flexible clamp comprises the following steps: adjusting a second positioning pressing block component along the Y direction, wherein the second positioning pressing block component is configured at two positioning point joint positions which can be jointed with the second side surface of the fan bracket; adjusting a support positioning pin assembly, wherein the support positioning pin assembly is configured at the position where two positioning points on the second side surface of the fan bracket can be positioned with the second positioning pressing block assembly; the fan support and a supporting positioning pin of the supporting positioning pin assembly are connected and positioned, a third positioning pressing block assembly is adjusted and configured to be pre-tightened and positioned with a third side positioning point of the fan support, a linear motion driving device is driven to drive the first positioning pressing block assembly to move in the X direction to enable the first positioning pressing block assembly to move, and the second positioning pressing block assembly clamps the first side surface and the second side surface of the fan support.
When the method is implemented, no sequence exists between the adjustment of the second positioning pressing block assembly and the adjustment of the supporting and positioning pin assembly along the Y direction. The clamping method is simple and easy to operate, positioning, attaching, supporting, pre-tightening, positioning and clamping are adopted in the clamping and positioning process, and the process is balanced and easy to adjust.
When the clamp is used for processing the procedures of milling the surface and drilling the reference hole of the fan bracket product, the quick clamping switching of processing of different types of products can be realized, the clamp can be used on a plurality of types of products in a compatible manner, the phenomenon that one set of clamp can be used on one product in the past is avoided, and the risk of scrapping the clamp when the design of the product in the past is changed is reduced. Therefore, the sample piece and the small-batch production of the fan bracket products can be completed efficiently, with low cost and short period. Meanwhile, the manufacturing quantity of the clamps at the product sample stage is reduced, the sample development period is shortened, and the prenatal development cost of the product shaping amount is reduced.
The method for flexibly clamping the fan bracket milling surface drill holes of different varieties on the clamp is convenient to implement and fast to switch.
When the method is implemented, the clamp debugging process adopts the steps of positioning, supporting, pre-pressing and clamping at last. The clamping method is simple and easy to operate, and the process is balanced and easy to adjust. The flexibility is high, uses reliably stably, can the compatible fan bracket product that is used for the different overall dimension of centre gripping. The use of one set of clamp for covering various products is realized.
Drawings
FIG. 1 is a schematic structural diagram I of a flexible fixture for face milling and drilling of a fan bracket.
FIG. 2 is a schematic structural diagram II of a flexible fixture for milling and drilling a fan bracket.
FIG. 3 is a schematic view of a first positioning block assembly of the first bracket.
FIG. 4 is a schematic view of a second positioning press block assembly of the second bracket.
FIG. 5 is a schematic view of a third positioning press block assembly of the third bracket.
FIG. 6 is a schematic view of the positioning plate and the assembly of the support dowel assembly for position adjustment and fastening.
FIG. 7 is a schematic height adjustment view of the support dowel assembly.
FIG. 8 is a schematic view of a compatible clamping type A fan bracket.
FIG. 9 is a schematic view of a compatible clamping type B fan bracket.
FIG. 10 is a schematic view of a compatible clamping type C fan bracket.
Detailed Description
The following detailed description is provided to explain the claims of the present invention so that those skilled in the art may understand the claims. The scope of the invention is not limited to the following specific implementation configurations. It is intended that the scope of the invention be determined by those skilled in the art from the following detailed description, which includes claims that are directed to this invention. In the following embodiments, "up", "down", "left", "right", and the like are used only to indicate relative positional relationships in the drawings, and when the absolute position of the object to be described is changed, the relative positional relationships may also be changed accordingly. The X direction is the left and right direction of the view, the Y direction is the front and back direction of the view, the left and right are ends, and the front and back are sides.
As shown in fig. 1, 2 and 3, the left end of the bottom plate 1 is connected with a drive supporting block 2, and a linear driving device is connected and fixed on the drive supporting block 2, in the embodiment, an oil cylinder 18 is adopted as the linear driving device. The first supporting block 61 and the second supporting block 62 are arranged on the bottom plate 1 on the right side of the linear driving device at intervals along the Y direction; the first support block 61 and the second support block 62 are detachably connected to a first stopper 51 and a second stopper 52 (to which the first support belongs), respectively. The first support block 61 and the first stopper 51 are spliced to form a first X-direction track, and the second support block 62 and the second stopper 52 are spliced to form a second X-direction track. Two ends of the first sliding block 4 can be arranged in the first X-direction track and the second X-direction track in a sliding mode. The first slide block 4 is connected with a first pressing block 11.
The right end part of the bottom plate 1 is connected with a second support 7, the second support 7 is connected with a cover plate 8, and the second support 7 and the cover plate 8 are spliced to form a Y-direction track. Two second positioning block 12 assemblies are arranged in the Y-direction track.
The bottom plate 1 between the second support 7 and the first support block 61 is connected with a third support 9 along the X direction, and a third positioning rod assembly 10 which can be adjusted along the X direction and the Y direction respectively is arranged on the third support.
The first support block 61, the second support block 62, the second support 7 and the bottom plate 1 in the area enclosed by the third support 9 are connected with a positioning plate 13, and a plurality of adjusting and positioning threaded holes are arranged in a matrix on the positioning plate 13. A plurality of height adjustable support dowel assemblies are secured at random locations by a pressure plate to a retaining plate 13 having a plurality of threaded holes.
As shown in fig. 1, 2, and 3, the top surfaces of the first support block 61 and the second support block 62 are disposed as two X-direction rail bottom surfaces 6X1, and the lower portions of two opposing surfaces of the first stopper 51 and the second stopper 52 are disposed as inverted-right-angle bent surface notches, respectively. The top surface of the inverted-right-angle bent surface is disposed to be X-directed to the rail top surface 5X1, and the vertical surface of the inverted-right-angle bent surface is disposed to be X-directed to the rail inner side surface 5X 2. Bottom 6X1, top 5X1 and sides 5X2 mate as X-directional rails. During the amalgamation, fix first supporting shoe 61 and second supporting shoe 62 on bottom plate 1 along Y relatively at present, place first slider 4 at the top surface of first supporting shoe 61 and second supporting shoe 62 again, then with the face breach of buckling of the chamfer of first stopper 51 and second stopper 52 relative, with first slider 4 side and top laminating completion back, fix first stopper 51 and second stopper 52 on first supporting shoe 61 and second supporting shoe 62 respectively through the bolt.
One end face (right end face) of the first slider 4 is provided with a plurality of coaxial threaded holes 41 along the Y direction, and the first positioning pressing block 11 is connected with the coaxial threaded holes 41 through bolts. The length and shape of the first positioning pressing block 11 can be made into various specifications.
The first positioning pressing block 11 comprises a longitudinal connecting portion 111, and the longitudinal connecting portion is provided with an X-direction pressing rod portion 112. The X-direction pressing rod part 112 is arranged in the middle of the longitudinal connecting part 111 (shown in figure 3) to form a T shape. In this form of the first positioning pressing block attached to the middle of the first sliding block 4, the X-direction pressing rod portion 112 may be arranged coaxially with the piston rod 3 of the cylinder 18, although a deviation within an acceptable range, such as a deviation of ± 5mm, is allowed. In the embodiment, one first positioning pressing block 11 is adopted.
According to the actual conditions of fan bracket appearance in the production process, also can adopt the multiple spot to compress tightly, if: in another embodiment, two first positioning pressing blocks 11 are adopted, and as shown in fig. 10, the X-direction pressing rod part 112 is arranged at the edge of the longitudinal connecting part 111 to form a right-angle shape. The two first positioning pressing blocks 11 are respectively connected to two sides of the first sliding block 4, and the two X-direction pressing rod portions 112 form two positioning clamping points.
As shown in fig. 1 and 2, a connecting groove 42 is formed at the top of the other end (left end surface) of the first slider 4, and the connecting groove 42 is in an X-direction "T" shape. The "T" shaped connecting groove 42 is an open structure extending downward along the opening of the top surface of the first slider 4. The threaded connecting rod with the adjustable extending length is assembled at the end part of the piston rod of the oil cylinder 18, the threaded connecting rod at the end part of the piston rod is inserted into the T-shaped connecting groove 42 from top to bottom during installation, so that the first sliding block 4 is connected with the piston rod of the oil cylinder 18, and meanwhile, the extending length of the threaded connecting rod 3 is used for adjusting the ejecting length stroke of the oil cylinder.
As shown in fig. 1, 2 and 4, the second bracket 7 is configured along the Y direction but not limited to the "E" shape, and the second positioning block assembly. The inner end (left end) of the top of the second bracket 7 is provided with a step structure along the Y direction, the bottom surface of the step structure is configured to be the slideway bottom surface 7Y1 of the Y direction track, the vertical surface of the step structure is configured to be the slideway end surface 7Y2 of the Y direction track, the cover plate 8 extends over the slideway end surface 7Y2, and the bottom surface of the extension part of the cover plate is configured to be the slideway top surface 8Y3 of the Y direction track; the bottom surface 7Y1 of the slide way, the end surface 7Y2 of the slide way and the top surface 8Y3 of the slide way are spliced into a Y-direction track.
The cover plate extension part is provided with a Y-direction long through hole 81. Two second positioning block 12 assemblies are arranged in the Y-direction track. The second positioning block 12 assembly comprises a longitudinal connecting part 121, the top surface of the longitudinal connecting part is connected with an adjusting locking bolt 122, and the adjusting locking bolt 122 penetrates through the Y-direction long through hole 81 of the cover plate extension part; the longitudinal connecting part 121 is provided with an X-direction positioning part 123, and the X-direction positioning part 123 penetrates out of the Y-direction rail.
During assembly, the second bracket 7 is fixed at the right end of the bottom plate 1 along the Y direction. The cover plate 8 is covered, and the cover plate 8 and the second bracket 7 are fixed through bolts. And then two second positioning pressing block 12 assemblies (without adjusting the locking bolt 122) are placed in the Y-direction step structure of the second support 7, and the locking bolt 122 penetrates through the Y-direction long through hole 81 to be connected with the top hole of the longitudinal connecting part 121.
As shown in fig. 1, 2 and 5, the third bracket and the third positioning rod assembly include a third bracket 9 connected to the bottom plate 1 along X, the third bracket 9 is provided with an X-direction long through hole 91, a screw 101 passes through the X-direction long through hole 91, and two end faces of the X-direction long through hole are connected with a locking nut 102.
As shown in fig. 6 and 7, a plurality of adjusting and positioning threaded holes 131 are formed in the positioning plate 13 connected to the bottom plate 1 in a matrix arrangement, and the positioning plate 13 with a plurality of threaded holes can fix a plurality of height-adjustable supporting and positioning pins 15 components at arbitrary positions by a pressing plate. The assembly of the supporting positioning pin 15 comprises a connecting bottom 141 on the positioning plate, and the connecting bottom 141 is fixed on the positioning plate 13 through the pressing plate assembly 16. The connecting bottom 141 is provided with a vertical connecting rod 142, and the connecting bottom 141 and the vertical connecting rod 142 may form, but are not limited to, an inverted "T" structure or a right-angle structure. The top surface of the vertical connecting rod 142 is provided with a threaded connecting hole 143, the threaded connecting hole is connected with the threaded supporting positioning pin 15, and the lower part of the supporting positioning pin 15 is connected with the locking nut 17.
The fan bracket milling surface drilling flexible clamp can be used for clamping fan brackets with different shapes. The position of the positioning pressing element is adjusted, so that one clamp can be used for the compatible use of multiple fan support products. There are illustrated A, B, C three different profile fan support products, as shown in fig. 8,9 and 10. The clamping operation process comprises the following steps:
And 2, adjusting the positions and the corresponding heights of a plurality of supporting positioning pin assemblies (shown in figure 7) on the positioning plate 13 according to the shape of the clamped fan bracket, and pressing the supporting positioning pin assemblies by using a pressing plate 16. The height and the position of the fan bracket are adapted to the clamp; (as shown in FIGS. 1, 2 and 7)
And 3, adjusting the positions of the screw 101 in the X direction and the Y direction on the third support 9 to enable the positioning point of the third side surface of the fan support to be reasonably positioned by the screw 101, and locking the locking nut 102 to fix the screw 101. (as shown in FIGS. 1, 2 and 5)
And 4, selecting a reasonable hole position on the first sliding block 4, and installing a first pressing block 11 to enable the pressing block and the fan support to be reasonable in pressing point. The extension length of the threaded connecting rod 3 at the piston rod end of the oil cylinder 18 is adjusted, so that the stroke position of the oil cylinder for ejecting the pressing block 11 is reasonable. (as shown in FIGS. 1, 2 and 3)
And 5, driving the oil cylinder 18 to enable the piston rod of the oil cylinder to move rightwards, driving the X-direction pressure rod part 112 to move, and enabling the X-direction pressure rod part 112 of the first pressing block 11 and the X-direction pressure rod part 123 of the second positioning block 12 to clamp the fan support in two directions. (as shown in FIGS. 1, 8,9, and 10)
When the clamp is used for carrying out face milling and drilling procedures on fan bracket products, the quick clamping switching of different types of products can be realized, the clamp can be used on a plurality of types of products in a compatible manner, the phenomenon that one set of clamp can only be used on one product in the past is avoided, and the risk of scrapping the clamp when the design of the product is changed in the past is reduced. Therefore, the sample piece and the small-batch production of the fan bracket products can be completed efficiently, with low cost and short period. The fixture can also be used for improving the rapid productivity of mass production products, so that a large number of newly manufactured fixtures are avoided, and the fixtures are idle and wasted once the fixture is high in yield. The manufacturing quantity of the frame clamps of the fan is greatly reduced, the development period of the fan bracket sample piece is shortened, and therefore the ante-partum development cost of the product sizing amount is effectively reduced.
Claims (10)
1. The utility model provides a fan support mills a drilling flexible fixture, it includes the bottom plate, its characterized in that: a first support is arranged at one end of the bottom plate, a first positioning pressing block assembly capable of moving in the X direction and a linear motion driving device connected with the input end of the first positioning pressing block assembly are arranged on the first support, a second support is arranged at the other end of the bottom plate, a Y-direction track is arranged on the second support, at least two second positioning pressing block assemblies capable of being adjusted in the Y direction are arranged on the Y-direction track, a third support is arranged on the bottom plate between the first support and the second support, and third positioning pressing block assemblies capable of being adjusted in the X direction and the Y direction respectively are arranged on the third support; a positioning plate is arranged on a bottom plate in the enclosed area of the first support, the second support and the third support, a plurality of adjusting positioning holes are formed in the positioning plate, at least three height-adjusting supporting positioning pin assemblies which are not on the same straight line are arranged on the plurality of adjusting positioning holes, and the positions of the supporting positioning pins can be adjusted and fixed; the first positioning pressing block assembly is used for actively positioning and clamping a first side positioning point of the fan bracket, the second positioning pressing block assembly is used for passively positioning and clamping two positioning points of a second side of the fan bracket, and the third positioning pressing block assembly is used for pre-tightening, positioning and clamping a third side positioning point of the fan bracket; three height-adjustable support dowel pin assemblies are used to support the bottom surface of the fan bracket.
2. The fan bracket milling face drilling flexible clamp of claim 1, characterized in that: first location briquetting subassembly includes first slider, and first slider sets up on the X of first support is to the track, and a plurality of coaxial holes have been seted up along the Y direction to a terminal surface of first slider, and coaxial jogged joint has first location briquetting, and the other end of first slider can be equipped with the spread groove, and the spread groove is used for connecting linear motion drive arrangement.
3. The fan bracket milling and drilling flexible fixture as claimed in claim 2, wherein: the first positioning pressing block comprises a longitudinal connecting part connected with the coaxial hole, and the longitudinal connecting part is provided with an X-direction pressing rod part.
4. The fan bracket milling and drilling flexible fixture as claimed in claim 2, wherein: the connecting groove is configured in an X-direction T-shaped shape which is open at the top surface of the other end surface of the first sliding block and extends downwards.
5. The fan bracket milling face drilling flexible clamp of claim 2, characterized in that: the X of first support is to first supporting shoe and the second supporting shoe that the track set up including the interval, and the top surface of first supporting shoe and second supporting shoe is configured into X respectively to orbital slide bottom surface, connects the stopper on first supporting shoe and the second supporting shoe respectively, and two faces in opposite directions of two stoppers are equipped with the chamfer angle face of buckling respectively, and the top surface of chamfer angle face of buckling is configured into X to orbital slide top surface, and the vertical face of chamfer angle face of buckling is configured into X to orbital slide medial surface.
6. The fan bracket milling face drilling flexible clamp of claim 1, characterized in that: the Y-direction track on the second support comprises a step structure arranged at the inner end of the top of the second support, the bottom surface of the step structure at the top of the second support is configured into the bottom surface of a slide way of the Y-direction track, and the vertical surface of the step structure at the top of the second support is configured into the end surface of the slide way of the Y-direction track; the second support is connected with a cover plate, the cover plate extends over the vertical surface of the step structure of the second support, the bottom surface of the cover plate extending portion is configured to be the top surface of a slide way of the Y-direction track, and the cover plate extending portion is provided with a Y-direction long through hole.
7. The fan bracket milling and drilling flexible fixture as claimed in claim 6, wherein: the second positioning pressing block assembly arranged in the Y-direction track comprises a longitudinal connecting part, the top surface of the longitudinal connecting part is connected with an adjusting locking bolt, and the adjusting locking bolt penetrates through a Y-direction long through hole of the cover plate extension part; the longitudinal connecting part is provided with an X-direction pressure rod part, and the X-direction pressure rod part penetrates out of the Y-direction track.
8. The fan bracket milling face drilling flexible fixture of claim 1, characterized in that: the third support is provided with an X-direction long through hole, the third positioning pressing block assembly comprises a screw rod penetrating through the X-direction long through hole, and the screw rods on two end faces of the X-direction long through hole are connected with locking nuts.
9. The fan bracket milling face drilling flexible clamp of claim 1, characterized in that: the supporting positioning pin assembly comprises a connecting bottom fixed on the positioning plate, a vertical connecting rod is arranged on the connecting bottom, a threaded connecting hole is formed in the top surface of the vertical connecting rod, the threaded connecting hole is connected with the supporting positioning pin, and the lower portion of the supporting positioning pin is connected with a locking nut.
10. The clamping and positioning method of the fan bracket milling surface drilling flexible clamp based on claim 1 is characterized in that: adjusting a second positioning pressing block component along the Y direction, wherein the second positioning pressing block component is configured at two positioning points which can be attached to the second side surface of the fan bracket; adjusting a support positioning pin assembly, wherein the support positioning pin assembly is configured at the position where two positioning points on the second side surface of the fan bracket can be positioned with a second positioning pressing block assembly; the fan support and a supporting positioning pin of the supporting positioning pin assembly are connected and positioned, a third positioning pressing block assembly is adjusted and configured to be pre-tightened and positioned with a third side positioning point of the fan support, a linear motion driving device is driven to drive the first positioning pressing block assembly to move in the X direction to enable the first positioning pressing block assembly to move, and the second positioning pressing block assembly clamps the first side and the second side of the fan support.
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| CN202110529906.2A CN113199269B (en) | 2021-05-14 | 2021-05-14 | Fan support milling surface drilling flexible clamp and clamping and positioning method |
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| CN202110529906.2A CN113199269B (en) | 2021-05-14 | 2021-05-14 | Fan support milling surface drilling flexible clamp and clamping and positioning method |
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| CN113199269B true CN113199269B (en) | 2022-08-19 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114905431B (en) * | 2022-04-06 | 2024-03-19 | 中国第一汽车股份有限公司 | Positioning device, positioning method and detection method for white car body damping tower |
| CN114535917B (en) * | 2022-04-27 | 2022-07-19 | 成都航天万欣科技有限公司 | Automatic welding platform and welding positioning method for clamping plate assembly |
| CN117226548B (en) * | 2023-11-10 | 2024-01-23 | 山东永能动力科技有限公司 | Cutting fixture for turbine impeller |
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