CN114458871A - Universal leveling foot pad for carbon fiber frame - Google Patents
Universal leveling foot pad for carbon fiber frame Download PDFInfo
- Publication number
- CN114458871A CN114458871A CN202111596287.5A CN202111596287A CN114458871A CN 114458871 A CN114458871 A CN 114458871A CN 202111596287 A CN202111596287 A CN 202111596287A CN 114458871 A CN114458871 A CN 114458871A
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- carbon fiber
- fixed
- foot pad
- hole
- spherical surface
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 28
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 28
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000012546 transfer Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M7/00—Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention belongs to the technical field of positioning supports, and relates to a universal leveling foot pad for a carbon fiber frame, which comprises a connecting plate with a connecting hole and a connecting pin penetrating through the connecting hole, wherein the connecting hole is provided with an upper chamfer surface and a lower chamfer surface, the middle part of the connecting pin is provided with a light rod part, a bushing and a locking ring are arranged outside a polished rod part, the locking ring is provided with an internal thread and a lower spherical surface used for being contacted with the upper chamfer surface, the spherical center of the lower spherical surface is positioned on the axis of the locking ring, the bushing comprises a cylindrical part with the outer diameter smaller than the inner diameter of the connecting hole and a flange part arranged at the lower part of the cylindrical part, the cylindrical part is provided with an external thread matched with the internal thread, the flange part is provided with an upper spherical surface used for being contacted with the lower chamfer surface, and the spherical center of the upper spherical surface is positioned on the axis of the cylindrical part. The connection position of the connecting pin and the connecting plate is firm through the matching of the spherical surface and the chamfered surface, and the requirement of reliably fixing the carbon fiber frame on the sandwich plate is met.
Description
Technical Field
The invention relates to the technical field of positioning supports, in particular to a universal leveling foot pad for a carbon fiber frame.
Background
The machine manufacturing industry is a foundation for modern industries and has long been looking at improving production efficiency and processing quality. With the increasing environmental awareness and the increasing shortage of natural resources, the limited utilization of energy and resources and the reduction of pollution are increasingly emphasized in production. Transformation of manufacturing industry also brings new development opportunities for the industry. With the revolutionary breakthrough and cross fusion of important fields such as information technology, new energy and new materials and the like and the forward direction, the manufacturing industry has gradually advanced to the lightweight and intelligent information era. Low energy consumption promotes lightweight manufacturing, and the weight reduction of the existing metal bearing structure is increasingly difficult. The use of composite materials has become quite common in recent years as one of the important elements of lightweight manufacturing, particularly in the automotive and aerospace industry.
The checking fixture and the clamp are used as basic components of a measuring technology, the functions of the checking fixture and the clamp in the production field are more and more obvious, the forms of the traditional checking fixture and the clamp special for a single vehicle model can not meet the requirements gradually, and a vehicle factory has higher requirements on the economy and the quick response capability of products of checking fixtures and clamp suppliers, so that the requirements on multifunction, flexibility and high efficiency are met, and the satisfaction degree of customers is directly determined at low cost. General structural members such as a detection tool, an opening detection tool, a measurement support, a clamp, a mounting tool and a gripping tool are usually fixed in position through a carbon fiber frame at present.
The leveling pad foot is a connecting part of the carbon fiber frame and the sandwich plate, and mainly comprises a connecting plate fixed with a hollow ball on a connecting node of the carbon fiber frame and a connecting pin fixed with the sandwich plate, wherein the connecting pin penetrates through a connecting hole on the connecting plate to be fixed. Although the precision of the carbon fiber frame part is relatively high, accumulated errors can be generated in the assembling process due to the manufacturing tolerance of the part, so that precision deviation which is difficult to avoid is caused, and the connecting plate and the connecting pin are often in point contact in the prior art, so that the stability is poor.
It is therefore desirable to provide a leveling foot pad that can accommodate deviations to address the above problems.
Disclosure of Invention
The invention mainly aims to provide a universal leveling foot pad for a carbon fiber frame, which can enable a connecting pin and a connecting plate to be tightly fixed through the matching relation of a spherical surface and a chamfered surface.
The invention realizes the purpose through the following technical scheme: a universal leveling foot pad for a carbon fiber frame comprises a connecting plate with a connecting hole and a connecting pin penetrating through the connecting hole, the connecting hole is provided with an upper chamfer surface and a lower chamfer surface, the bottom of the connecting pin is provided with a thread part used for being fixed with the sandwich plate, the middle part of the connecting pin is provided with a polished rod part, the outside of the polished rod part is provided with a lining and a locking ring, the locking ring is provided with an internal thread and a lower spherical surface which is used for contacting with the upper chamfer surface, the center of the lower spherical surface is positioned on the axis of the locking ring, the bushing comprises a cylindrical part with the outer diameter smaller than the inner diameter of the connecting hole and a flange part arranged at the lower part of the cylindrical part, the cylindrical portion has an external thread that mates with the internal thread, and the flange portion has an upper spherical surface for contact with the lower chamfered surface, the center of sphere of the upper spherical surface being located on the axis of the cylindrical portion.
Specifically, the side of the locking ring is provided with a power assisting hole.
Specifically, the connecting holes are round holes or waist-shaped holes with the center distance not more than 2 mm.
Specifically, the connecting plate still has one and keeps away from the clean shot fixed part of connecting hole, the clean shot fixed part is fixed with the clean shot through the switching piece, be equipped with four fixed counter bores that the cross was arranged on the clean shot fixed part, be equipped with on the switching piece and correspond the fixed screw of fixed counter bore position, fixed counter bore with utilize the screw fixation between the fixed screw.
Furthermore, the connecting plate is located the lower part of clean shot fixed part is equipped with the counter bore, one side of connecting plate be equipped with link up to screw hole in the counter bore, be equipped with a top in the counter bore and contain the cushion of conical head, be equipped with one in the screw hole and adjust the jackscrew, adjust the jackscrew with the conical head of cushion is to the top.
Furthermore, the upper part of the adapter block is provided with a bulge part which can be embedded with the hollow ball, the middle part of the bulge part is provided with an inner spherical surface, a plurality of bolt holes are uniformly distributed on the inner spherical surface around the shaft, the axes of the bolt holes penetrate through the spherical center of the inner spherical surface, and the bolt holes are used for fixing bolts penetrating through the hollow ball.
Further, the outward flange of bellying is rotational symmetry's petal column structure, the bottom surface structure of clean shot matches the outward flange of bellying.
The technical scheme of the invention has the beneficial effects that:
the connection position of the connecting pin and the connecting plate is firm through the matching of the spherical surface and the chamfered surface, and the requirement of reliably fixing the carbon fiber frame on the sandwich plate is met.
Drawings
FIG. 1 is a perspective view of the universal leveling foot pad of the embodiment 1 integrally connected with a hollow ball;
FIG. 2 is a cross-sectional view of the universal leveling foot pad and the hollow ball of the embodiment 1 when they are connected into a whole;
FIG. 3 is an enlarged view of a portion of FIG. 2 at position A;
FIG. 4 is a perspective view of a connecting plate of embodiment 1;
FIG. 5 is a perspective view of the bushing;
FIG. 6 is a perspective view of the locking ring;
FIG. 7 is a perspective view of a transfer block;
FIG. 8 is a perspective view of a hollow sphere;
FIG. 9 is a bottom view of the connecting plate of embodiment 2.
The figures in the drawings represent:
1-connecting plate, 11-connecting hole, 111-upper chamfer surface, 112-lower chamfer surface, 12-hollow ball fixing part, 121-fixing counter bore, 13-counter bore and 14-screw hole;
2-connecting pin, 21-threaded part, 22-polished rod part;
3-bushing, 31-cylindrical portion, 311-external thread, 32-flange portion, 321-upper spherical surface;
4-locking ring, 41-internal thread, 42-lower spherical surface, 43-power-assisted hole;
5, cushion blocks;
6-adjusting the jackscrew;
7-an adapter block, 71-a fixing screw hole, 72-a convex part, 73-an inner spherical surface and 74-a bolt hole;
8-hollow spheres;
9-bolt.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example 1:
as shown in fig. 1 to 6, a universal leveling foot for a carbon fiber frame according to the present invention includes a connecting plate 1 having a connecting hole 11 and a connecting pin 2 passing through the connecting hole 11, the connecting hole 11 having an upper chamfered surface 111 and a lower chamfered surface 112, the bottom of the connecting pin 2 having a threaded portion 21 for fixing to a sandwich panel, the connecting pin 2 having a shank portion 22 at a middle portion thereof, the shank portion 22 being externally provided with a bushing 3 and a locking ring 4, the locking ring 4 having an internal thread 41 and a lower spherical surface 42 for contacting the upper chamfered surface 111, the spherical center of the lower spherical surface 42 being located on the axis of the locking ring 4, the bushing 3 including a cylindrical portion 31 having an outer diameter smaller than the inner diameter of the connecting hole 11 and a flange portion 32 provided at a lower portion of the cylindrical portion 31, the cylindrical portion 31 having an external thread 311 (thread details are not shown) for fitting the internal thread 41, the flange portion 32 having an upper spherical surface 321 for contacting the lower chamfered surface 112, the center of the upper spherical surface 321 is located on the axis of the cylindrical portion 31. The connection hole 11 here is a circular hole. In use, the connecting pin 2 is located within the cylindrical portion 31 of the bush 3, the cylindrical portion 31 is inserted into the connecting bore 11, and the external screw 311 is exposed above the connecting bore 11 to enable the locking ring 4 to be screwed thereto. The cylindrical portion 31 has a suitable adjustment space with the connection hole 11 and can be filled with a filler to prevent loosening after fixation. When the locking ring 4 is not tightened, the polish rod part 22 can move up and down along the inner wall of the cylindrical part 31; when the locking ring 4 is screwed down, the connecting plate 1 can be clamped between the bushing 3 and the locking ring 4, and meanwhile, the upper chamfer surface 111 can generate radial component force on the locking ring 4 and then transmit the component force to the bushing 3, so that the bushing 3 holds the connecting pin 2 tightly. In the locking process of the locking ring 4, the upper chamfer surface 111 contacts the lower spherical surface 43, the lower chamfer surface 112 contacts the upper spherical surface 321, and even if the connecting pin 2 and the connecting hole 11 have some coaxiality deviation, the spherical surface and the chamfer surface can both ensure circular line contact, so that the connecting position is firm after locking, and the requirement of reliably fixing the carbon fiber frame on the sandwich plate is met.
As shown in fig. 1, 2 and 6, the side surface of the locking ring 4 is provided with a power assisting hole 43. The assisting hole 43 is used for inserting the rod-shaped part to prolong the force arm and help the locking ring 4 to lock. So that the cylindrical portion 31 can be deformed sufficiently to hold the connecting pin 2 tightly.
As shown in fig. 2, 4 and 7, the connecting plate 1 further has a hollow sphere fixing portion 12 far away from the connecting hole 11, the hollow sphere fixing portion 12 is fixed to the hollow sphere 8 through a transfer block 7, four fixing counter bores 121 are arranged in a cross shape on the hollow sphere fixing portion 12, fixing screw holes 71 corresponding to the positions of the fixing counter bores 121 are arranged on the transfer block 7, and the fixing counter bores 121 and the fixing screw holes 71 are fixed by screws (not shown). The carbon fiber frame is connected with the carbon fiber rod through hollow balls 8 (surface hole sites are not all drawn), and the hollow balls 8 are positioned and connected on the connecting plate 1 through the transfer blocks 7. The four fixing counter bores 121 arranged in a cross shape have a centering function on the adapter block 7, and the rotating angle of the hollow ball 8 on the adapter block 7 can be adjusted as required.
As shown in fig. 2 and 4, a counter bore 13 is formed in the lower portion of the connecting plate 1, which is located at the hollow sphere fixing portion 12, a screw hole 14 (details of the screw thread are not shown) penetrating into the counter bore 13 is formed in one side of the connecting plate 1, a cushion block 5 with a conical head at the top is arranged in the counter bore 13, an adjusting jackscrew 6 is arranged in the screw hole 14, and the adjusting jackscrew 6 is opposite to the conical head of the cushion block 5. When the load of hollow ball 9 department is bigger, connecting plate 1 is being close to the deformation that collapses easily of hollow ball fixed part 12's one end, and cushion 5 then is used for providing the bottom sprag, prevents this kind of deformation, guarantees the position accuracy of carbon fiber frame. The specific adjusting method comprises the following steps: the adjusting jackscrew 6 is firstly screwed out of the screw hole 14, the cushion block 5 is retracted into the counter bore 13, after the fixing of one side of the connecting hole 11 is completed, when the adjusting jackscrew 6 is slowly screwed into the screw hole 14, the cushion block 5 can be downwards ejected out of the counter bore 13 until the bottom surface of the cushion block 5 contacts the sandwich board. At this time, even if the load of the hollow ball 9 is large, the sandwich panel table surface can provide enough supporting force to the cushion block 5 to prevent the connecting plate 1 from deforming.
As shown in the figure, the upper part of the adapter block 7 has a protrusion 72 capable of being engaged with the hollow ball 8, the middle part of the protrusion 72 has an inner spherical surface 73, four bolt holes 74 (thread details are not shown) are uniformly distributed on the inner spherical surface 73 around the shaft, the axes of the bolt holes 74 all penetrate through the center of the inner spherical surface 73, and the bolt holes 74 are used for fixing with the bolts 9 penetrating through the hollow ball 8. The number of bolt holes 74 may be increased or decreased. Bolt 9 can select a bolt hole 74 from the incline direction to take up clean shot 8 and adapter block 7 each other, has both satisfied the fixed needs, also can let bolt 9 avoid the hookup location of carbon fiber pole.
As shown in fig. 7 and 8, the outer edge of the protrusion 72 is in a petal-shaped structure with rotational symmetry, and the bottom surface structure of the hollow ball 8 matches the outer edge of the protrusion 72. The petal-shaped projections 72 can stop the hollow ball 8 from rotating.
Example 2:
as shown in fig. 9, the difference from embodiment 1 is that: the connecting holes 11 are waist-shaped holes with the center distance not more than 2mm, and the direction of the waist-shaped holes is vertical to the length direction of the connecting plate 1. During actual installation, more than or equal to 3 foot pads of the carbon fiber frame are required to be fixed on the sandwich plate. For example, when 3 foot pads are used for fixing, in order to satisfy the requirement of determining 6 degrees of freedom of the carbon fiber support, 1 round hole foot pad of embodiment 1 and 2 waist hole foot pads of embodiment 2 are used in combination, normally, the long side of the frame is selected as the position of 1 round hole foot pad, the other side corresponding to the position of the waist hole foot pad is installed, in order to eliminate the accumulated error (manufacturing tolerance of parts) during the assembly of the frame, the connecting plate 1 of the waist hole foot pad is installed in parallel with the connecting plate 1 of the round hole foot pad, the short side of the frame is installed with the second waist hole foot pad, and the connecting plate 1 of the waist hole foot pad is installed perpendicularly to the round hole foot pad connecting plate 1. Therefore, the round hole type foot pad is used for ensuring the first fixing position, the waist hole type foot pad is used for fixing other positions with deviation, and the mounting mode can ensure the stability of repeated mounting of the carbon fiber frame.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a universal leveling pad foot for carbon fiber frame, includes the connecting plate that has the connecting hole and passes the connecting pin of connecting hole, its characterized in that: the connecting hole has last chamfer face and lower chamfer face, the bottom of connecting pin has the screw thread portion that is used for with the sandwich panel is fixed, the middle part of connecting pin has the polished rod portion, polished rod portion is equipped with bush and check ring outward, the check ring have the internal thread and be used for with go up the spherical face down of chamfer face contact, the centre of sphere of spherical face is located down on the axis of check ring, the bush includes that the external diameter is less than the cylindric portion of connecting hole internal diameter is with locate the flange portion of cylindric portion lower part, cylindric portion have with interior screw-thread fit's external screw thread, the flange portion have be used for with the last spherical face of chamfer face contact down, the centre of sphere is located on the axis of cylindric portion.
2. The universal leveling foot pad for carbon fiber frames according to claim 1, wherein: and a power assisting hole is formed in the side surface of the locking ring.
3. The universal leveling foot pad for carbon fiber frames according to claim 1, wherein: the connecting holes are round holes or waist-shaped holes with the center distance not more than 2 mm.
4. The universal leveling foot pad for carbon fiber frames according to claim 1, wherein: the connecting plate still has one and keeps away from the clean shot fixed part of connecting hole, the clean shot fixed part is fixed with the clean shot through the switching piece, be equipped with four fixed counter bores that the cross was arranged on the clean shot fixed part, be equipped with on the switching piece and correspond the fixed screw of fixed counter bore position, fixed counter bore with utilize the screw fixation between the fixed screw.
5. The universal leveling foot pad for carbon fiber frames according to claim 4, wherein: the connecting plate is located the lower part of clean shot fixed part is equipped with the counter bore, one side of connecting plate be equipped with link up to screw hole in the counter bore, be equipped with a top in the counter bore and contain the cushion of conical head, be equipped with one in the screw hole and adjust the jackscrew, adjust the jackscrew with the conical head of cushion is to the top.
6. The universal leveling foot pad for carbon fiber frames according to claim 4, wherein: the upper portion of the adapter block is provided with a protruding portion capable of being embedded with the hollow ball, the middle portion of the protruding portion is provided with an inner spherical surface, a plurality of bolt holes are uniformly distributed in the inner spherical surface around a shaft, axes of the bolt holes penetrate through the center of the inner spherical surface, and the bolt holes are used for being fixed with bolts penetrating through the hollow ball.
7. The universal leveling foot pad for carbon fiber frames according to claim 6, wherein: the outward flange of bellying is rotational symmetry's petal column structure, the bottom surface structure of clean shot matches the outward flange of bellying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111596287.5A CN114458871B (en) | 2021-12-24 | Universal leveling foot pad for carbon fiber frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111596287.5A CN114458871B (en) | 2021-12-24 | Universal leveling foot pad for carbon fiber frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114458871A true CN114458871A (en) | 2022-05-10 |
| CN114458871B CN114458871B (en) | 2024-07-02 |
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