CN218800473U - Self-centering fixed center frame - Google Patents
Self-centering fixed center frame Download PDFInfo
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- CN218800473U CN218800473U CN202222834690.3U CN202222834690U CN218800473U CN 218800473 U CN218800473 U CN 218800473U CN 202222834690 U CN202222834690 U CN 202222834690U CN 218800473 U CN218800473 U CN 218800473U
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- connecting rod
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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
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model belongs to the technical field of machine tool equipment, in particular to a self-centering fixed center frame, which comprises a base, a driving element, a clamping assembly and an adjusting assembly, wherein the clamping assembly comprises an upper connecting rod and a lower connecting rod which are hinged on the base; the adjusting assembly comprises an upper support rod and a lower support rod, the upper support rod is hinged with the upper connecting rod, and the lower support rod is hinged with the lower connecting rod; one end of the upper support rod, which is far away from the upper connecting rod, and one end of the lower support rod, which is far away from the lower connecting rod, are hinged with the output end of the driving element; the problems that the conventional manual centering positioning precision of the self-centering center frame is poor, and time and labor are consumed are solved.
Description
Technical Field
The utility model belongs to the technical field of the machine tool equipment, concretely relates to from centering fixed center frame.
Background
The self-centering center frame is a product matched with a high-precision numerical control machine such as a numerical control lathe, a turning center, a grinding machine and the like, is an auxiliary device for radially supporting a rotating workpiece in machining and is used for improving the stress condition in machining of slender shafts, crankshafts and pipe parts. When the self-centering center frame works, a workpiece is clamped through the clamping jaws of the center frame, and the center frame and the workpiece do not move axially relative to each other in the machining process, so that the coaxiality of the machined workpiece is ensured, and the requirement of radial runout is met.
The traditional self-centering center frame is simple in structure, needs to be clamped and centered manually, is difficult to ensure the positioning precision of a workpiece, consumes time and labor, and is not suitable for the requirements of high efficiency and high precision of modern machine tools.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a from centering fixed center frame to solve traditional from centering center frame manual centering, the problem of the power consumption consuming time of centering.
In order to solve the above problem, the utility model provides a following technical scheme:
a self-centering fixed center frame comprises a base, a driving element, a clamping assembly and an adjusting assembly;
the clamping assembly comprises an upper connecting rod and a lower connecting rod which are hinged on the base;
the adjusting component comprises an upper supporting rod and a lower supporting rod, the upper supporting rod is hinged with the upper connecting rod, and the lower supporting rod is hinged with the lower connecting rod;
and one end of the upper support rod, which is far away from the upper connecting rod, and one end of the lower support rod, which is far away from the lower connecting rod, are hinged with the output end of the driving element.
The technical principle of the utility model is that:
the workpiece is located between the upper connecting rod and the lower connecting rod, the output end of the driving element drives the upper supporting rod and the lower supporting rod to move towards the direction far away from the workpiece, the angle between the upper supporting rod and the lower supporting rod is gradually reduced, and the upper supporting rod and the lower supporting rod drive the free ends of the upper connecting rod and the lower connecting rod to gradually draw close to the workpiece and clamp the workpiece. After the workpiece is machined, the output end of the driving element drives the upper supporting rod and the lower supporting rod to move in the opposite direction, and the upper connecting rod and the lower connecting rod loosen the workpiece.
The utility model has the advantages that:
through the arrangement of the upper support rod, the lower support rod and the upper connecting rod and the lower connecting rod, the workpiece can be clamped and loosened only by pushing the upper support rod and the lower support rod through the driving element, and the process is more stable in operation; the upper connecting rod and the lower connecting rod move simultaneously and clamp the workpiece, so that the centering precision is higher; the power is provided by the driving element, so that the automation degree is improved, and the working efficiency is high.
Furthermore, the base is a U-shaped base, sliding grooves corresponding in position are formed in the left plate and the right plate of the U-shaped base, a middle shaft is slidably mounted in the sliding grooves, the upper supporting rod and the lower supporting rod are hinged to the middle shaft, and the output end of the driving element is fixedly connected with the middle shaft.
The sliding groove is formed in the U-shaped seat, the driving element is used for driving the middle shaft to slide in the sliding groove, the middle shaft drives the upper supporting rod and the lower supporting rod to move, the sliding groove limits the moving direction of the middle shaft, and the stability of power transmission is improved.
Furthermore, the clamping assembly further comprises a rear shaft, two ends of the rear shaft are fixedly connected with the left plate and the right plate of the U-shaped seat respectively, the upper connecting rod and the lower connecting rod are hinged to the rear shaft, and the driving element is fixedly mounted on the rear shaft.
Furthermore, the upper connecting rod comprises a first connecting rod, a second connecting rod and a clamping block, two sides of the clamping block are fixedly connected with the first connecting rod and the second connecting rod respectively, and the first connecting rod and the second connecting rod are hinged to the rear shaft; the lower connecting rod is hinged on the rear shaft between the first connecting rod and the second connecting rod; and the clamping block and the lower connecting rod are both provided with V-shaped grooves for clamping workpieces.
Furthermore, bearings are sleeved at two ends of the middle shaft, and the two bearings are slidably mounted in the sliding grooves.
Further, the driving element is an oil cylinder.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is a top view of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include:
the device comprises a U-shaped seat 1, a bottom plate 11, a left plate 12, a right plate 13 and a chute 14;
an upper connecting rod 2, a first connecting rod 21, a second connecting rod 22 and a clamping block 23;
a lower connecting rod 3;
the adjusting component 4, an upper support rod 41, a lower support rod 42, a middle shaft 43 and a bearing 44;
an oil cylinder 5;
a rear axle 6;
a workpiece 7.
In the first embodiment, as shown in FIGS. 1 and 2,
a self-centering fixed center frame comprises a U-shaped seat 1, an oil cylinder 5, a clamping assembly and an adjusting assembly. The U-shaped seat comprises a bottom plate 11, a left plate 12 and a right plate 13 which are welded on the bottom plate 11, and sliding grooves 14 corresponding to the positions are formed in the left plate 12 and the right plate 13.
The clamping assembly comprises an upper connecting rod 2, a lower connecting rod 3 and a rear shaft 6, the two ends of the rear shaft 6 are respectively welded on a left plate 12 and a right plate 13, the upper connecting rod 2 and the lower connecting rod 3 are hinged on the rear shaft 6, and V-shaped grooves for clamping workpieces are formed in the upper connecting rod 2 and the lower connecting rod 3.
The workpiece 7 is positioned between the V-shaped grooves of the upper link 2 and the lower link 3, and the workpiece 7 is clamped and released by changing the angle between the upper link 2 and the lower link 3.
The adjusting component 4 comprises an upper support rod 41, a lower support rod 42 and a middle shaft 43, wherein two ends of the upper support rod 41 are respectively hinged on the upper connecting rod 2 and the middle shaft 43; two ends of the lower supporting rod 42 are respectively connected with the lower connecting rod 3 and the middle shaft 43; the bearing 44 is sleeved at both ends of the middle shaft 43, and the bearing 44 is slidably mounted in the sliding groove 14.
The bearing 44 slides in the sliding groove 14, so that the middle shaft 43 drives the upper supporting rod 41 and the lower supporting rod 42 to rotate oppositely or relatively; the upper support rod 41 and the lower support rod 42 rotate oppositely, so that the upper connecting rod 2 and the lower connecting rod 3 are driven to rotate oppositely, the angle between the upper connecting rod 2 and the lower connecting rod 3 is reduced, and the upper connecting rod 2 and the lower connecting rod 3 clamp a workpiece; the upper support rod 41 and the lower support rod 42 rotate relatively to drive the upper connecting rod 2 and the lower connecting rod 3 to rotate relatively, so that the angle between the upper connecting rod 2 and the lower connecting rod 3 is enlarged, and the upper connecting rod 2 and the lower connecting rod 3 loosen the workpiece.
The oil cylinder 5 is fixedly arranged on the rear shaft 6 through a bolt, and a piston rod of the oil cylinder 5 is fixedly connected with the middle shaft 43.
The bearing 44 on the middle shaft 43 is pushed to slide in the chute 14 by the piston rod of the hydraulic cylinder 5, the hydraulic cylinder has simple structure, small volume and stable work, the processes of clamping and loosening the workpiece 7 are stable in operation, and the centering precision of the workpiece 7 is improved; provide power through hydro-cylinder 5, improved the utility model discloses an degree of automation, work efficiency is high, is applicable to the requirement of modernization lathe high efficiency, high accuracy.
The specific implementation is as follows:
a piston rod of the oil cylinder 5 pushes the middle shaft 43 to slide in a direction far away from the workpiece, so that the upper support rod 41 and the lower support rod 42 drive the upper connecting rod 2 and the lower connecting rod 3 to approach the workpiece, and V-shaped grooves on the upper connecting rod 2 and the lower connecting rod 3 are contacted with the surface of the workpiece 7 to clamp the workpiece 7; the oil cylinder 5 pushes the middle shaft 43 to slide reversely, so that the workpiece 7 can be loosened.
Example two, as shown in fig. 3:
the difference between this embodiment and the first embodiment is that, in this embodiment:
the upper connecting rod 2 comprises a first connecting rod 21, a second connecting rod 22 and a clamping block 23, two sides of the clamping block 23 are fixedly installed on the first connecting rod 21 and the second connecting rod 22 through bolts respectively, and the first connecting rod 21 and the second connecting rod 22 are hinged to the rear shaft 6; the lower connecting rod 3 is hinged on the rear shaft 6 between the first connecting rod 21 and the second connecting rod 22; the clamping block 23 is provided with a V-shaped groove, and the V-shaped groove on the clamping block 23 corresponds to the V-shaped groove on the lower connecting rod 3.
Through set up grip block 23 between first connecting rod 21 and second connecting rod 22, will descend connecting rod 3 to set up between first connecting rod 21 and second connecting rod 22, make the V type groove position on grip block 23 and the lower connecting rod 3 just right, make the clamping-force equilibrium of going up connecting rod 2 and lower connecting rod 3 act on the clamping face of work piece 7, improved the utility model discloses the stability of centre gripping work piece 7 has improved the centering precision of work piece 7.
One end of the upper support rod 41 is hinged with the first connecting rod 21 and the second connecting rod 22, and the other end of the upper support rod 41 is hinged with the middle shaft 43; two lower supporting rods 42 are provided, one ends of the two lower supporting rods 42 are respectively hinged on two sides of the lower connecting rod 3, and the other ends of the two lower supporting rods 42 are both hinged on a middle shaft 43.
The upper support rod 41 is arranged between the first connecting rod 21 and the second connecting rod 22, so that the upper support rod 41 can drive the first connecting rod 21 and the second connecting rod 22 to rotate simultaneously; two lower support rods 42 are symmetrically arranged on two sides of the lower connecting rod 3, so that the forces of the lower support rods 42 acting on the two sides of the lower connecting rod 3 are the same; the process of clamping and loosening the workpiece is more stable, and the centering precision of the workpiece 7 is improved.
The above description is only an example of the present invention, and the common general knowledge of the known technical solutions and/or characteristics is not described herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. The utility model provides a from fixed centre frame of centering, includes base, drive element, centre gripping subassembly and adjusting part, its characterized in that:
the clamping assembly comprises an upper connecting rod and a lower connecting rod which are hinged on the base;
the adjusting component comprises an upper supporting rod and a lower supporting rod, the upper supporting rod is hinged with the upper connecting rod, and the lower supporting rod is hinged with the lower connecting rod;
and one end of the upper support rod, which is far away from the upper connecting rod, and one end of the lower support rod, which is far away from the lower connecting rod, are hinged with the output end of the driving element.
2. A self-centering steady rest as claimed in claim 1, wherein: the base is a U-shaped base, sliding grooves corresponding in position are formed in the left plate and the right plate of the U-shaped base, a middle shaft is arranged in each sliding groove in a sliding mode, the upper supporting rod and the lower supporting rod are hinged to the middle shaft, and the output end of the driving element is fixedly connected with the middle shaft.
3. A self-centering fixed center frame as claimed in claim 2, wherein: the clamping assembly further comprises a rear shaft, two ends of the rear shaft are fixedly connected with the left plate and the right plate of the U-shaped seat respectively, the upper connecting rod and the lower connecting rod are hinged to the rear shaft, and the driving element is fixedly mounted on the rear shaft.
4. A self-centering steady rest as claimed in claim 3, wherein: the upper connecting rod comprises a first connecting rod, a second connecting rod and a clamping block, two sides of the clamping block are fixedly connected with the first connecting rod and the second connecting rod respectively, and the first connecting rod and the second connecting rod are hinged to the rear shaft; the lower connecting rod is hinged on the rear shaft between the first connecting rod and the second connecting rod; and the clamping block and the lower connecting rod are both provided with V-shaped grooves for clamping workpieces.
5. A self-centering steady rest as claimed in claim 4, wherein: the bearings are sleeved at two ends of the middle shaft and are slidably mounted in the sliding grooves.
6. A self-centering fixed center frame as claimed in claim 5, wherein: the driving element is an oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222834690.3U CN218800473U (en) | 2022-10-26 | 2022-10-26 | Self-centering fixed center frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222834690.3U CN218800473U (en) | 2022-10-26 | 2022-10-26 | Self-centering fixed center frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218800473U true CN218800473U (en) | 2023-04-07 |
Family
ID=87274591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222834690.3U Active CN218800473U (en) | 2022-10-26 | 2022-10-26 | Self-centering fixed center frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218800473U (en) |
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2022
- 2022-10-26 CN CN202222834690.3U patent/CN218800473U/en active Active
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