CN215146759U - Automatic adjusting center frame - Google Patents
Automatic adjusting center frame Download PDFInfo
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- CN215146759U CN215146759U CN202022270608.XU CN202022270608U CN215146759U CN 215146759 U CN215146759 U CN 215146759U CN 202022270608 U CN202022270608 U CN 202022270608U CN 215146759 U CN215146759 U CN 215146759U
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- screw rod
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Abstract
The utility model discloses an automatic adjusting center frame; the center frame comprises a center frame base and a center frame upper body; the center frame base is provided with a first manual jacking piece and an automatic jacking piece; the center frame upper body is arranged on the center frame base in a turnover mode, and a second manual jacking piece is arranged in the middle of the center frame upper body; the axial leads of the first manual jacking piece, the second manual jacking piece and the automatic jacking piece are positioned on the same plane and are intersected at the same point; the invention provides a center frame adjusting device which is combined manually and mechanically automatically to realize center frame adjusting operation, has the advantages of convenience in operation and safety in use compared with a conventional manual center frame, has the advantages of convenience in processing and manufacturing and low cost compared with a full-automatic control center frame, and is favorable for obtaining market favor.
Description
Technical Field
The patent of the utility model belongs to the technical field of machining, concretely relates to automatic adjustment centre frame for on lathe.
Background
At present, a center frame is used on a heavy horizontal lathe and a large horizontal lathe and a small horizontal lathe at home and abroad; the traditional center frame structure mode can meet the use requirement, but at least two operators are required to frequently and manually adjust the center frame. In the prior art, when a workpiece is supported by a center frame to align the workpiece, the adjustment of a head sliding body at the other side needs two persons to move around the rear end of a machine tool for multiple times of matching operation adjustment, the processing auxiliary time is longer, and the labor amount of the workers is larger; particularly, the rear end of the protective center frame for the large horizontal lathe is closed in a protective mode, and the rear end protection plate needs to be opened for adjustment, so that great trouble is brought to a machine tool operator.
In the prior art, a scheme that a motor controls the action of a jacking piece to further realize the adjustment operation of a jacking head sliding body is provided, for example, patent documents with patent numbers of "CN 201510022197.3" and "high-precision numerical control center frame" and patent documents with patent numbers of "CN 201821930409.3" and "a servo center frame" are provided, the center frames related in the patent documents all adopt not less than two motors for adjustment control, and need to be matched with a corresponding numerical control system with a detection function when in use, so that the numerical control system is convenient to adjust and beneficial to improving the processing precision, but has high production and processing cost and belongs to products required by high-end markets; the conventional manual center frame belongs to a low-end market product, has low price, large market demand and inconvenient use; the prior art lacks a center frame product combining manual operation and mechanical automatic operation, and the center frame product can meet the requirements of middle and low-end markets and provide a new breakthrough point for enterprise income increase.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an automatic adjustment centre frame that has manual and mechanical automation and combine together to the not enough of existence among the prior art.
In order to achieve the above object, the utility model adopts the following technical scheme:
an automatically adjusting steady rest, comprising:
the center frame base is provided with a first manual jacking piece and an automatic jacking piece;
the center frame upper body is arranged on the center frame base in a turnover mode, and a second manual jacking piece is arranged in the middle of the center frame upper body;
the axial lines of the first manual jacking piece, the second manual jacking piece and the automatic jacking piece are positioned on the same plane and are intersected at the same point.
Further, the automatic jacking piece comprises a first fixed sleeve fixedly arranged on the center frame base, a connecting disc arranged at one end of the first fixed sleeve, a first sliding body movably matched with the first fixed sleeve, a first screw rod in threaded fit with the first sliding body, and a speed reducing motor arranged on the connecting disc and connected with the first screw rod; first gliding mass one end is equipped with first top, be connected with safety clutch between gear motor and the first lead screw, safety clutch is located the connection pad, be equipped with first direction keyway along first gliding mass axial on the first gliding mass outer wall, be equipped with the first locking lever of screw-thread fit on the first fixing sleeve, first locking lever one end top is held in first direction keyway.
Furthermore, the first manual jacking piece and the second manual jacking piece respectively comprise a second fixed sleeve, a guide sleeve arranged at one end of the second fixed sleeve, a second sliding body movably matched with the second fixed sleeve, and a second screw rod in threaded fit with the second sliding body; the second fixed sleeve of the first manual jacking piece is fixedly arranged on the center frame base, the second fixed sleeve of the second manual jacking piece is fixedly arranged on the center frame upper body, one end of the second sliding body is provided with a second jacking head, one end of the second screw rod is matched with the guide sleeve, and the outer side of the end part of the second fixed sleeve is provided with a hand wheel matched with one end of the second screw rod; and a second guide key groove is formed in the outer wall of the second sliding body along the axial direction of the second sliding body, a second locking rod in threaded fit is arranged on the second fixing sleeve, and one end of the second locking rod is supported in the second guide key groove.
Further, the center frame base comprises a semicircular frame body and a connecting seat arranged at the bottom end of the semicircular frame body, an outer convex portion is arranged at one end of the semicircular frame body, a screw rod capable of being turned over vertically is hinged to the outer convex portion, and a fastening nut is matched with the screw rod in a threaded mode.
Further, the whole body of the upper body of the central frame is in a semicircular ring shape, one end of the upper body of the central frame is hinged to the other end of the semicircular frame body, the other end of the upper body of the central frame is provided with another outer convex part, the other outer convex part is provided with a groove matched with the screw rod, and the top end of the groove is provided with a platform surface used for being matched with the fastening nut.
The utility model has the advantages that:
1. according to the invention, the automatic jacking part is arranged on the structural design and is matched with the first manual jacking part and the second manual jacking part for combined use, the structural design is convenient for workers to realize workpiece alignment operation on one side of a machine tool, and one worker can finish the alignment operation; compared with a conventional center frame, the structural design increases the convenience of operation, saves the labor input and is beneficial to reasonably distributing workers; compared with a full-automatic center frame, the structural design mode does not need a matched numerical control system with a detection function, and does not need to structurally modify at least two supporting pieces, so that the processing and manufacturing cost can be reduced, the price advantage is formed, the requirement of a medium-low end market is met, and the blank of the medium-low end market is filled;
2. on the specific structural improvement of the automatic ejecting piece, the invention adds the components such as a speed reducing motor, a safety clutch and the like on the basis of the same structure with the manual ejecting piece part, has small structural change and can further reduce the processing and manufacturing cost; the added safety clutch can avoid the workpiece from being clamped by misoperation, is favorable for protecting the speed reducing motor and can increase the use safety.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic sectional view of the automatic supporting member from A-A in FIG. 1;
FIG. 3 is a schematic cross-sectional view of the second manual holding member shown in FIG. 1 from B-B;
fig. 4 is a schematic view of a usage state of the present invention in practical application.
Wherein: 1-a steady rest base; 2-a first manual top holder; 3, automatic supporting piece; 4-a steady upper body; 5-a second manual holding member; 6-a first fixed sleeve; 7-a connecting disc; 8-a first slider; 9-a first screw rod; 10-a reduction motor; 11-a first plug; 12-a safety clutch; 13-a first guide keyway; 14-a first locking bar; 15-a second fixed sleeve; 16-a guide sleeve; 17-a second slider; 18-a second screw rod; 19-a second plug; 20-a hand wheel; 21-a second guide keyway; 22-a second locking lever; 23-a semicircular frame body; 24-a connecting seat; 25-screw rod; 26-a fastening nut; 27-an operator; 28-machine tool protection.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings:
as shown in fig. 1 to 4, the automatic adjusting center frame comprises a center frame base 1 and a center frame upper body 4.
Wherein:
the center frame base 1 comprises a semicircular frame body 23 and a connecting seat 24 arranged at the bottom end of the semicircular frame body 23; one end of the semicircular frame body 23 is provided with an outer convex part, a screw rod 25 capable of turning up and down is hinged on the outer convex part, and a fastening nut 26 is in threaded fit with the screw rod 25; the semicircular frame body 23 is provided with a first manual jacking piece 2 and an automatic jacking piece 3 which are arranged at intervals; the connecting socket 24 is used for cooperation with a machine tool.
The center frame upper body 4 is arranged on the center frame base 1 in a turnover mode, specifically, the center frame upper body 4 is integrally in a semicircular shape, one end of the center frame upper body 4 is hinged with the other end of the semicircular frame body 23, the other end of the center frame upper body 4 is provided with another outer convex part, the other outer convex part is provided with a groove 26 matched with the screw 25, and the top end of the other outer convex part is provided with a platform surface matched with the fastening nut 26; the central frame base 1 and the central frame upper body 4 are connected and fixed through the matching among the screw 25, the fastening nut 26 and the groove 26; the middle part of the upper body 4 of the central frame is provided with a second manual jacking piece 5.
The axial lines of the first manual jacking piece 2, the second manual jacking piece 5 and the automatic jacking piece 3 are positioned on the same plane and meet at the same point.
The first manual jacking piece 2 and the second manual jacking piece 5 have the same structure, and both the structures of the first manual jacking piece and the second manual jacking piece comprise a second fixed sleeve 15, a guide sleeve 16 arranged at one end of the second fixed sleeve 15, a second sliding body 17 movably matched with the second fixed sleeve 15 and a second screw rod 18 in threaded fit with the second sliding body 17; the second fixed sleeve 15 of the first manual top holder 2 is fixedly arranged on the center frame base 1, and the second fixed sleeve 15 of the second manual top holder 5 is fixedly arranged on the center frame upper body 4; one end of the second sliding body 17 is provided with a second plug 19; one end of a second screw rod 18 is matched with the guide sleeve 16, one end of the second screw rod 18 extends to the outer side of the guide sleeve 16, a hand wheel 20 matched with one end of the second screw rod 18 is arranged on the outer side of the end part of the second fixing sleeve 15, a boss is arranged at a position close to one end of the second screw rod 18 and embedded into the guide sleeve 16, and therefore unidirectional axial fixing of the second screw rod 18 is achieved; a second guide key groove 21 is axially formed in the outer wall of the second sliding body 17 along the second sliding body 17, a second locking rod 22 in threaded fit is arranged on the second fixing sleeve 15, one end of the second locking rod 22 is supported in the second guide key groove 21 in a propping manner, locking of the second sliding body 17 can be achieved through the action of the second locking rod 22, and meanwhile, the end part of the second locking rod 22 also serves as a key and is used for achieving circumferential fixing of the second sliding body 17 relative to the second fixing sleeve 15; the hand wheel 20 is rotated to drive the second screw rod 18 to rotate, the second screw rod 18 drives the second sliding body 17 to axially move, and the second sliding body 17 drives the second ejecting head 19 to synchronously axially move, so that the workpiece is ejected and held and adjusted.
The automatic jacking piece 3 is a main body with an improved center frame structure and comprises a first fixed sleeve 6 fixedly arranged on the center frame base 1, a connecting disc 7 arranged at one end of the first fixed sleeve 6, a first sliding body 8 movably matched with the first fixed sleeve 6, a first screw rod 9 in threaded fit with the first sliding body 8, and a speed reducing motor 10 arranged on the connecting disc 7 and connected with the first screw rod 9; one end of the first sliding body 8 is provided with a first plug 11; the structures of the first fixing sleeve 6, the first sliding body 8, the first screw rod 9 and the first top 11 can be the same as those of the second fixing sleeve 15, the second sliding body 17, the second screw rod 18 and the second top 19 in the first manual jacking piece 2 and the second manual jacking piece 5, so that the structure is simplified and improved, and the processing and production cost is reduced; the connecting disc 7 is cylindrical and has a reducing structure, a boss is arranged at the position, close to one end, of the first screw rod 9, the boss is embedded in the connecting disc 7, and unidirectional axial fixation of the first screw rod 9 is realized; the speed reducing motor 10 can be a combination of a servo motor and a speed reducer or a combination of a stepping motor and a speed reducer, the speed reducing motor 10 is connected with an external power supply and is controlled to start and stop through a button switch, and the button switch is arranged on one side, convenient for a worker to control the center frame, and can be specifically arranged on the center frame base 1; a safety clutch 12 is connected between the speed reducing motor 10 and the first screw rod 9, the safety clutch 12 is positioned in the connecting disc 7, and the arrangement of the safety clutch 12 can prevent the first ejector 11 from clamping a workpiece and is also beneficial to protecting the speed reducing motor 10; first gliding mass 8 outer wall is gone up and is equipped with first direction keyway 13 along first gliding mass 8 axial, is equipped with screw-thread fit's first check lock pole 14 on the first fixed sleeve 6, and first check lock pole 14 one end top is held in first direction keyway 13, can realize the locking of first gliding mass 8 through the effect of first check lock pole 14, and the tip of first check lock pole 14 simultaneously is the effect of key for it is fixed to realize the circumference of first gliding mass 8 relative first fixed sleeve 6. When the automatic ejecting and holding piece 3 is controlled, the speed reducing motor 10 is controlled to act through a switch, the speed reducing motor 10 drives the first screw rod 9 to rotate by utilizing the safety clutch 12, the first screw rod 9 drives the first sliding body 8 to axially move, and then the synchronous movement of the first ejecting head 11 is realized.
Taking a large horizontal lathe with a protection center frame as an example, when the invention is used, an operator 27 stands on one side of the lathe protection 28 to adjust the center frame, and the adjusting process of the center frame is as follows: turning the upper body 4 of the central frame to open, firstly, pushing a center hole at one end of a workpiece by a spindle tip, pushing a center hole at the other end of the workpiece by a tailstock tip, clamping the workpiece by a chuck, turning the upper body 4 of the central frame to close, fixing the upper body 4 of the central frame and the base 1 of the central frame through the matching among a screw 25, a fastening nut 26 and a groove 26, and particularly, realizing the fixation through rotating the fastening nut 26; then adjusting the first manual jacking piece 2 on the center frame base 1 to enable the second jacking head 19 to be in contact with the outer circular surface of the workpiece, and pressing a switch to enable the first jacking head 11 of the automatic jacking piece 3 to be in contact with the outer circular surface of the workpiece; loosening the tailstock center, finally performing support table alignment, and adjusting a second manual supporting piece 5 to fasten after alignment; in the support table alignment process, alignment adjustment is realized by controlling the first manual supporting piece 2 and the automatic supporting piece 3, and the operation is more convenient and faster.
Claims (5)
1. An automatically adjusting steady rest, comprising:
the center frame base (1) is provided with a first manual jacking piece (2) and an automatic jacking piece (3);
the center frame upper body (4) is arranged on the center frame base (1) in a turnover mode, and a second manual jacking piece (5) is arranged in the middle of the center frame upper body (4);
the axial lines of the first manual jacking piece (2), the second manual jacking piece (5) and the automatic jacking piece (3) are positioned on the same plane and are intersected at the same point.
2. The automatic-adjustment center frame according to claim 1, wherein the automatic supporting member (3) comprises a first fixed sleeve (6) fixedly arranged on the center frame base (1), a connecting disc (7) arranged at one end of the first fixed sleeve (6), a first sliding body (8) movably matched with the first fixed sleeve (6), a first screw rod (9) in threaded fit with the first sliding body (8), and a speed reduction motor (10) arranged on the connecting disc (7) and connected with the first screw rod (9); first gliding mass (8) one end is equipped with first top (11), be connected with safety clutch (12) between gear motor (10) and first lead screw (9), safety clutch (12) are located connection pad (7), be equipped with first direction keyway (13) along first gliding mass (8) axial on first gliding mass (8) outer wall, be equipped with screw-thread fit's first locking lever (14) on first fixing sleeve (6), first locking lever (14) one end top is held in first direction keyway (13).
3. The automatic adjustment steady rest according to claim 1 or 2, characterized in that the first manual top-holding member (2) and the second manual top-holding member (5) each comprise a second fixed sleeve (15), a guide sleeve (16) provided at one end of the second fixed sleeve (15), a second sliding body (17) movably engaged with the second fixed sleeve (15), and a second screw rod (18) threadedly engaged with the second sliding body (17); a second fixed sleeve (15) of the first manual jacking piece (2) is fixedly arranged on the center frame base (1), a second fixed sleeve (15) of the second manual jacking piece (5) is fixedly arranged on the center frame upper body (4), one end of a second sliding body (17) is provided with a second jacking head (19), one end of a second screw rod (18) is matched with a guide sleeve (16), and the outer side of the end part of the second fixed sleeve (15) is provided with a hand wheel (20) matched with one end of the second screw rod (18); the sliding mechanism is characterized in that a second guide key groove (21) is axially formed in the outer wall of the second sliding body (17) along the second sliding body (17), a second locking rod (22) in threaded fit is arranged on the second fixing sleeve (15), and one end of the second locking rod (22) is supported in the second guide key groove (21).
4. The automatic adjustment center frame according to claim 1, wherein the center frame base (1) comprises a semicircular frame body (23) and a connecting seat (24) arranged at the bottom end of the semicircular frame body (23), one end of the semicircular frame body (23) is provided with an external convex part, a screw rod (25) capable of being turned up and down is hinged on the external convex part, and a fastening nut (26) is in threaded fit on the screw rod (25).
5. The automatic-adjustment center frame according to claim 4, wherein the center frame upper body (4) is in a semicircular ring shape as a whole, one end of the center frame upper body (4) is hinged with the other end of the semicircular frame body (23), the other end of the center frame upper body (4) is provided with another external convex part, the other external convex part is provided with a groove matched with the screw rod (25), and the top end of the other external convex part is provided with a platform surface matched with the fastening nut (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022270608.XU CN215146759U (en) | 2020-10-13 | 2020-10-13 | Automatic adjusting center frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022270608.XU CN215146759U (en) | 2020-10-13 | 2020-10-13 | Automatic adjusting center frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215146759U true CN215146759U (en) | 2021-12-14 |
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ID=79349535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022270608.XU Active CN215146759U (en) | 2020-10-13 | 2020-10-13 | Automatic adjusting center frame |
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| Country | Link |
|---|---|
| CN (1) | CN215146759U (en) |
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2020
- 2020-10-13 CN CN202022270608.XU patent/CN215146759U/en active Active
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Effective date of registration: 20240522 Address after: No. 41 East Road, Shetang Town, Maiji District, Tianshui City, Gansu Province, 741020 Patentee after: Gansu Xinghuo Intelligent CNC Machine Tool Co.,Ltd. Country or region after: China Address before: SHETANG road 741000 Gansu province Tianshui Maiji District No. 41 Patentee before: Tianshui Spark Machine Tool Co.,Ltd. Country or region before: China |