CN215544971U - Expansion center and machine tool - Google Patents
Expansion center and machine tool Download PDFInfo
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- CN215544971U CN215544971U CN202121119937.2U CN202121119937U CN215544971U CN 215544971 U CN215544971 U CN 215544971U CN 202121119937 U CN202121119937 U CN 202121119937U CN 215544971 U CN215544971 U CN 215544971U
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- 238000003754 machining Methods 0.000 claims abstract description 51
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000001681 protective effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses an expansion center and a machine tool, which belong to the field of machine tools, and comprise a taper head, wherein the inclination of the taper head is 11 degrees, the taper head is matched with taper holes at two ends of a printing mold, a taper hole is formed in the taper head, taper ejector rods are arranged in the taper hole, a plurality of guide holes are uniformly distributed on the circumference of the side wall of the taper hole, the cross section of each guide hole is gradually reduced from inside to outside, each guide hole is perpendicular to the taper inclined plane of the taper head, an ejector block is arranged in each guide hole, each taper ejector rod can abut against the corresponding ejector block, each ejector block can protrude out of the taper inclined plane of the taper head through each guide hole, the taper heads are matched with the taper holes at two ends of the printing mold, and then the ejector blocks are tightly supported in the taper holes at two ends of the printing mold, so that the sliding between the printing mold and the taper heads is avoided, and the machining precision is further ensured.
Description
Technical Field
The utility model relates to the field of machine tools, in particular to an expansion center and a machine tool.
Background
This scheme is directed against is a processing of stamping die, as shown in fig. 5, this stamping die comprises seamless steel pipe, both ends are equipped with the tapering hole, the tapering of tapering hole is 10, this stamping die's tapering hole is standard component in the trade, traditional processing mode utilizes the chuck can't use in this processing, the mode that adopts the chuck to press from both sides tightly can cause the damage to the stamping die surface, produce the influence to later stage machining precision, consequently this stamping die's processing must adopt tapering head and tapering hole to cooperate, and both ends all set up the mode that the tapering head propped up, adopt tapering head and the common tight mode of tapering tailstock cooperation promptly, nevertheless above-mentioned mode skids very easily at actual course of working, stamping die tapering hole and tapering head produce promptly and skid, thereby influence the machining precision.
In view of the problems in the prior art, the utility model designs and manufactures an expansion center and a machine tool by combining years of design and use experience of related fields and assisting with over-strong professional knowledge, so as to overcome the defects.
SUMMERY OF THE UTILITY MODEL
For the problems in the prior art, the expansion center and the machine tool provided by the utility model can effectively improve the machining precision of the pipe fitting and avoid the slipping of the pipe fitting in the machining process.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: an expansion center comprises a taper head, wherein a taper hole is formed in the taper head, and a taper ejector rod is arranged in the taper hole;
a plurality of guide holes are uniformly distributed on the circumference of the side wall of the taper hole, the section of each guide hole is gradually reduced from inside to outside, and the guide holes are perpendicular to the taper inclined plane of the taper head;
the taper ejector rod can be abutted against the ejector block, and the ejector block can protrude out of the taper head taper inclined plane through the guide hole.
Preferably, the taper head is connected with a connecting sleeve, a hydraulic cylinder is arranged in the connecting sleeve, and the hydraulic cylinder can drive the taper ejector rod to move.
Preferably, two rows of guide holes are formed in the circumference of the side wall of the tapered hole, and each row of guide holes comprises at least three guide holes which are uniformly distributed on the side wall of the tapered hole in the circumferential direction.
Preferably, the taper head has a slope of 11 °.
A machine tool comprises a machine body and the expansion center, wherein two machine tool guide rails are arranged on the machine body and transversely arranged on one side face of the machine body, a machine tool spindle box and a tailstock are respectively arranged at two ends of the two machine tool guide rails in a sliding mode, machine tool spindle box driving devices for driving the machine tool spindle box and the tailstock to move simultaneously or oppositely are arranged at the bottoms of the machine tool spindle box and the tailstock, and the expansion center is arranged at the end portion of the machine tool spindle box.
Preferably, two machining sliding tables are arranged between the spindle box and the tailstock of the machine tool, a machining device is arranged on each machining sliding table, the two machining sliding tables respectively slide at two ends of a guide rail of the machine tool, and a machining sliding table driving device which drives the two machining sliding tables to move relatively at the same time or move in opposite directions is arranged on one side of each machining sliding table.
Preferably, the machine tool spindle box driving device comprises a machine tool main screw and a machine tool spindle box driving motor arranged at one end of the machine tool main screw, the directions of threads at two ends of the machine tool main screw are opposite, the bottoms of the machine tool spindle box and the tailstock are respectively connected with two ends of the machine tool main screw through screw nuts, and the machine tool spindle box driving motor can drive the machine tool main screw to move relatively or oppositely when driving the machine tool main screw to rotate.
Preferably, machining slip table drive arrangement includes a lathe auxiliary screw and sets up the machining slip table driving motor in lathe auxiliary screw one end, lathe auxiliary screw both ends screw thread opposite direction, two machining slip table one side pass through screw nut respectively with lathe auxiliary screw both ends are connected, can drive two when machining slip table driving motor drives auxiliary screw and rotates machining slip table simultaneous relative motion perhaps moves to opposite direction.
Preferably, the machining device comprises a feeding mechanism and a cutter, the feeding mechanism comprises a longitudinal sliding table, the cutter is arranged on the longitudinal sliding table, a longitudinal sliding motor and a longitudinal sliding lead screw are arranged at the bottom of the longitudinal sliding table, and the longitudinal sliding motor drives the longitudinal sliding table to longitudinally move on the machining sliding table through the longitudinal sliding lead screw and a lead screw nut.
The utility model discloses an useful part lies in:
1. the utility model utilizes the matching of the taper head and the taper holes at the two ends of the printing mould, and then combines the jacking block to be tightly supported in the taper holes at the two ends of the printing mould, thereby avoiding the slippage between the printing mould and the taper head and further ensuring the processing precision.
2. The utility model utilizes the hydraulic cylinder to drive the taper ejector rod to abut against the ejector block and protrude out of the taper head taper inclined plane from the guide hole, has simple structure and convenient control, and does not influence the machine tool spindle box to drive the taper head to rotate.
Drawings
Fig. 1 is a schematic view of an expansion tip;
figure 2 is a cross-sectional view of an expansion tip;
figure 3 is a cross-sectional view at the pilot hole of an expansion tip;
FIG. 4 is a schematic view of a machine tool;
fig. 5 is a sectional view of a printing mold.
In the figure: the machining device comprises a 1-taper head, a 2-guide hole, a 3-connecting sleeve, a 4-ejector block, a 5-taper ejector rod, a 6-taper hole, a 7-machine body, an 8-machine tool spindle box, a 9-tailstock and a 10-machining sliding table.
Detailed Description
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 4, an expansion center comprises a taper head 1, wherein the inclination of the taper head 1 is 11 degrees, the taper head is matched with taper holes 6 at two ends of a printing mold, the taper hole 6 is arranged in the taper head 1, taper ejector rods 5 are arranged in the taper holes 6, a plurality of guide holes 2 are uniformly distributed on the circumference of the side wall of the taper hole 6, the sections of the guide holes 2 are gradually reduced from inside to outside, the guide holes 2 are perpendicular to the taper inclined plane of the taper head 1, ejector blocks 4 are arranged in the guide holes 2, the taper ejector rods 5 can be abutted against the ejector blocks 4, the ejector blocks 4 can protrude out of the taper inclined plane of the taper head 1 through the guide holes 2, the taper head 1 is matched with the taper holes 6 at two ends of the printing mold, and then the ejector blocks 4 are tightly supported in the taper holes 6 at two ends of the printing mold, so that the sliding between the printing mold and the taper head 1 is avoided, and the machining precision is further ensured.
The taper head 1 is connected with the connecting sleeve 3, the hydraulic cylinder is arranged in the connecting sleeve 3, the hydraulic cylinder can drive the taper ejector rod 5 to move, the hydraulic cylinder drives the taper ejector rod 5 to abut against the ejector block 4, the ejector block protrudes out of the taper inclined plane of the taper head 1 from the guide hole 2, the structure is simple, the control is convenient, and the spindle box 8 of a machine tool is not influenced to drive the taper head 1 to rotate.
The side wall of the taper hole 6 can be circumferentially provided with two rows of guide holes 2, and each row of guide holes 2 comprises at least three guide holes and the circumference of each guide hole is uniformly distributed on the side wall of the taper hole 6, so that the positioning device is suitable for positioning the taper holes 6 of printing dies with different sizes.
The utility model also provides a machine tool, which comprises a machine body 7 and the expansion center, wherein two machine tool guide rails are arranged on the machine body 7 and are transversely arranged on one side surface of the machine body 7, a machine tool spindle box 8 and a tailstock 9 are respectively arranged at two ends of the two machine tool guide rails in a sliding manner, a taper head 1 with an angle of 11 degrees is arranged on the tailstock 9, a machine tool spindle box 8 driving device which drives the machine tool spindle box 8 and the tailstock 9 to simultaneously and relatively move or move towards opposite directions is arranged at the bottoms of the machine tool spindle box 8 and the tailstock 9, and the expansion center is arranged at the end part of the machine tool spindle box 8.
The driving device of the machine tool spindle box 8 specifically comprises a machine tool main screw and a machine tool spindle box 8 driving motor arranged at one end of the machine tool main screw, the thread directions of two ends of the machine tool main screw are opposite, the bottoms of the machine tool spindle box 8 and the tailstock 9 are respectively connected with two ends of the machine tool main screw through screw nuts, and the machine tool spindle box 8 driving motor can drive the machine tool spindle box 8 and the tailstock 9 to move relatively or move in opposite directions simultaneously when driving the machine tool main screw to rotate.
According to the utility model, two machining sliding tables 10 are arranged between a main spindle box 8 and a tail seat 9 of a machine tool, machining devices are arranged on the two machining sliding tables 10, the two machining sliding tables 10 respectively slide at two ends of a guide rail of the machine tool, and a driving device for the machining sliding tables 10 which drives the two machining sliding tables 10 to move simultaneously or in opposite directions is arranged on one side of the two machining sliding tables 10. Machining slip table 10 drive arrangement specifically includes a lathe auxiliary screw and sets up the machining slip table 10 driving motor in lathe auxiliary screw one end, and lathe auxiliary screw both ends screw opposite direction, and two machining slip table 10 one side are connected with lathe auxiliary screw both ends respectively through screw nut, can drive two machining slip tables 10 relative motion simultaneously or to opposite direction motion when machining slip table 10 driving motor drives auxiliary screw and rotates.
The machining device comprises a feeding mechanism and a cutter, wherein the feeding mechanism comprises a longitudinal sliding table, the cutter is arranged on the longitudinal sliding table, a longitudinal sliding motor and a longitudinal sliding lead screw are arranged at the bottom of the longitudinal sliding table, and the longitudinal sliding motor drives the longitudinal sliding table to longitudinally move on the machining sliding table 10 through the longitudinal sliding lead screw and a lead screw nut.
The method comprises the following specific processing steps:
initial position, the pneumatic cylinder does not stretch out, at this moment, kicking block 4 is located 2 in the guiding hole and does not bulge 1 tapering inclined plane of tapering head, set up the printing die between lathe headstock 8 and tailstock 9, the tapering head 1 through inflation top and tailstock 9 props tightly, the pneumatic cylinder stretches out this moment, drive 5 backs of pneumatic cylinder drive tapering ejector pin and lean on kicking block 4 to bulge in 1 tapering inclined plane of tapering head from the guiding hole 2, kicking block 4 props tightly in the two end tapering holes 6 of printing die, then drive the printing die rotation through lathe headstock 8, utilize the processingequipment simultaneous relative motion on two machining slip tables 10 or to opposite direction motion to the printing die to process.
It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should also be understood that various alterations, modifications and/or variations can be made to the present invention by those skilled in the art after reading the technical content of the present invention, and all such equivalents fall within the protective scope defined by the claims of the present application.
Claims (9)
1. An expansion tip, characterized by: the device comprises a taper head, wherein a taper hole is formed in the taper head, and a taper ejector rod is arranged in the taper hole;
a plurality of guide holes are uniformly distributed on the circumference of the side wall of the taper hole, the section of each guide hole is gradually reduced from inside to outside, and the guide holes are perpendicular to the taper inclined plane of the taper head;
the taper ejector rod can be abutted against the ejector block, and the ejector block can protrude out of the taper head taper inclined plane through the guide hole.
2. An expansion tip according to claim 1, wherein: the taper head is connected with a connecting sleeve, a hydraulic cylinder is arranged in the connecting sleeve, and the hydraulic cylinder can drive the taper ejector rod to move.
3. An expansion tip according to claim 1, wherein: two rows of guide holes are formed in the circumference of the side wall of the taper hole, and each row of guide holes comprises at least three guide holes which are evenly distributed on the side wall of the taper hole in the circumferential direction.
4. An expansion tip according to claim 1, wherein: the inclination of the taper head is 11 degrees.
5. A machine tool, characterized by: the expansion center comprises a machine body and the expansion center according to any one of claims 1 to 4, wherein two machine tool guide rails are arranged on the machine body and transversely arranged on one side surface of the machine body, a machine tool spindle box and a tailstock are respectively arranged at two ends of the two machine tool guide rails in a sliding mode, a machine tool spindle box driving device for driving the machine tool spindle box and the tailstock to move simultaneously or oppositely is arranged at the bottom of the machine tool spindle box and the tailstock, and the expansion center is arranged at the end portion of the machine tool spindle box.
6. A machine tool according to claim 5, characterized in that: two machining sliding tables are arranged between the spindle box and the tailstock of the machine tool, a machining device is arranged on each machining sliding table, the two machining sliding tables respectively slide at two ends of a guide rail of the machine tool, and a machining sliding table driving device which drives the two machining sliding tables to move simultaneously and oppositely or move towards opposite directions is arranged on one side of each machining sliding table.
7. A machine tool according to claim 5, characterized in that: the machine tool spindle box driving device comprises a machine tool main lead screw and a machine tool spindle box driving motor arranged at one end of the machine tool main lead screw, the thread directions of two ends of the machine tool main lead screw are opposite, the bottoms of the machine tool spindle box and the tailstock are respectively connected with two ends of the machine tool main lead screw through lead screw nuts, and the machine tool spindle box driving motor can drive the machine tool main lead screw to move relatively or move in opposite directions simultaneously when driving the machine tool main lead screw to rotate.
8. A machine tool according to claim 6, characterized in that: machining slip table drive arrangement includes a lathe auxiliary screw and sets up the machining slip table driving motor in lathe auxiliary screw one end, lathe auxiliary screw both ends screw thread opposite direction, two machining slip table one side through screw-nut respectively with lathe auxiliary screw both ends are connected, can drive two when machining slip table driving motor drives auxiliary screw and rotates machining slip table simultaneous relative motion perhaps moves to opposite direction.
9. A machine tool according to claim 6, characterized in that: the machining device comprises a feeding mechanism and a cutter, the feeding mechanism comprises a longitudinal sliding table, the cutter is arranged on the longitudinal sliding table, a longitudinal sliding motor and a longitudinal sliding lead screw are arranged at the bottom of the longitudinal sliding table, and the longitudinal sliding motor drives the longitudinal sliding table to move longitudinally on the machining sliding table through the longitudinal sliding lead screw and a lead screw nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121119937.2U CN215544971U (en) | 2021-05-24 | 2021-05-24 | Expansion center and machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121119937.2U CN215544971U (en) | 2021-05-24 | 2021-05-24 | Expansion center and machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215544971U true CN215544971U (en) | 2022-01-18 |
Family
ID=79863309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121119937.2U Active CN215544971U (en) | 2021-05-24 | 2021-05-24 | Expansion center and machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215544971U (en) |
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2021
- 2021-05-24 CN CN202121119937.2U patent/CN215544971U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240613 Address after: 276000 no.1277, xiaoshanqian village, economic development zone, Lanshan District, Linyi City, Shandong Province Patentee after: Shandong Zhongcheng Machine Tool Co.,Ltd. Country or region after: China Address before: 276002 Ma Chang Hu Xiao Shan Cun, Lanshan District, Linyi City, Shandong Province Patentee before: Liu Zhenhou Country or region before: China |