CN209830863U - Numerical control scraping and roll finishing machine cutter - Google Patents
Numerical control scraping and roll finishing machine cutter Download PDFInfo
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- CN209830863U CN209830863U CN201920444831.6U CN201920444831U CN209830863U CN 209830863 U CN209830863 U CN 209830863U CN 201920444831 U CN201920444831 U CN 201920444831U CN 209830863 U CN209830863 U CN 209830863U
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- boring cutter
- skiving
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Abstract
The utility model discloses a numerical control scraping tumbling mill cutter, which comprises a main body, a blade, a cutter body, a return device and a hydraulic device, wherein the cutter body is arranged at one end of the main body, the other end of the main body is connected with a joint through a connecting disc, a supporting block is sleeved outside the joint, the hydraulic device comprises a piston rod and a piston, a cavity is arranged at the center of the main body, the piston rod is arranged in the cavity, the piston is fixed at the end part of the piston rod, a retainer is sleeved outside the main body and comprises a cylinder barrel, the cylinder barrel is provided with two rows, balls are arranged in the two rows of cylinder barrels, a front spacer is arranged between the retainer and the main body, a front runway is arranged at one end of the front spacer, which is close to the cutter body, a back runway is arranged at the other end of the front spacer, the, the cutting stability is good, and the machining precision is high.
Description
Technical Field
The utility model belongs to the technical field of the machine tool cutter, concretely relates to numerical control skiving and roll finishing machine cutter.
Background
With the rapid development of a numerical control scraping tumbling mill in recent years, the machine tool can finish rough boring, fine boring and rolling at one time, and the equipment has higher efficiency which is more than 10 times of that of the traditional honing method and 5-10 times of that of a common deep hole boring mill. The method is the best solution for machining the inner hole in the hydraulic cylinder industry at present. However, the machine tool also faces a plurality of problems in the process of domestic development. Because the dimensional accuracy of domestic raw materials is relatively poor, especially hot rolled pipes, the traditional foreign single-row bead rolling tool is difficult to adapt to the state of the domestic raw materials, and the international mainstream horizontal boring and rolling head guide is divided into hard alloy guide and nylon soft guide. The guide contact area of the hard alloy is about 20mm, if the straightness, roundness and wall thickness errors of the seamless steel pipe are too large, the cutting force of a certain blade of a rough turning tool is too large, the guide supporting force of the hard alloy cannot correct the load generated by the cutting force of the tool, the processed product has errors on the axis, the maximum thickness reaches 1.5mm, the quality of the product is unqualified, and in order to eliminate the problem of eccentricity after processing, the eccentricity after processing is solved through the design and development of a new tool.
Disclosure of Invention
In order to overcome the technical problem in the prior art field, the utility model aims to provide a numerical control skiving roller burnishing machine cutter.
The utility model provides a numerical control scraping tumbling mill cutter, which comprises a main body, a blade, a cutter body, a return device and a hydraulic device, one end of the main body is provided with a cutter body, the other end of the main body is connected with a joint through a connecting disc, a supporting block is sleeved outside the joint, the hydraulic device comprises a piston rod and a piston, a cavity is arranged in the center of the main body, the piston rod is arranged in the cavity, the piston is fixed at the end part of the piston rod, a retainer is sleeved outside the main body and comprises a cylinder barrel, the cylinder barrels are provided with two rows of cylinder barrels, balls are arranged in the two rows of cylinder barrels, a front spacer bush is arranged between the retainer and the main body, a front runway is arranged at one end of the front spacer bush close to the cutter body, a rear runway is arranged at the other end of the front spacer bush, the return device comprises a spring base, a spring gland and a bearing seat, and a return spring is arranged between the spring base and the spring gland.
The cutter body comprises a fine boring cutter body and a rough boring cutter body, the fine boring cutter body is connected with the main body, and the rough boring cutter body is connected with the main body.
The blades comprise a fine boring cutter blade and a rough boring cutter blade, the fine boring cutter blade is mounted on a fine boring cutter body, and the rough boring cutter blade is mounted on a rough boring cutter body.
The supporting block is sleeved outside the joint and fixed through a countersunk screw.
The cylinder barrel is trapezoidal, and the ball is H-shaped.
The cylinder barrel is provided with two rows: the cylinder comprises a front-row cylinder barrel and a rear-row cylinder barrel, wherein balls are arranged in the front-row cylinder barrel and the rear-row cylinder barrel, and the balls in the front-row cylinder barrel and the balls in the rear-row cylinder barrel are arranged alternately.
The diameter of the ball in the front row cylinder barrel is the same as that of the ball in the rear row cylinder barrel, and the diameter sizes of the front track and the rear track are different, so that the rolling amount is controlled.
The front and rear cylinder banks are on the same centerline but of different diameters.
The utility model provides a numerical control scraping tumbling mill cutter, its beneficial effect lies in, through increasing rigidity, layering cutting to the cutter to and double pearl self guidance, the whole boring head of rigidity control of cutter is processed according to set track when adding man-hour, can not take place eccentrically, can fundamentally solve the emergence of "eccentric" problem like this, has cancelled the carbide direction, avoids cutter size variation to appear holding the jar phenomenon in the course of working, and the alloy direction produces the repeated positioning with double pearl.
Drawings
Fig. 1 is a schematic view of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of a retainer structure;
FIG. 3 is a view A-A of FIG. 2;
FIG. 4 is a view in the direction K of FIG. 3;
FIG. 5 is an M-directional view of the retainer structure;
FIG. 6 is a view of the tool work connection;
fig. 7 is a hydraulic schematic diagram of the tool operation.
The figure is marked with:
1. roughly boring the cutter body; 2. an end cap; 3. finely boring the cutter body; 4. a front runway; 5. a front spacer sleeve; 6. a holder; 7. a back track; 8. a spring mount; 9. a spring gland; 10. a bearing seat; 11. a joint; 12. a support block; 13. a piston rod; 14. a connecting disc; 15. a piston; 16. a main body; 17. a return spring; 18. a front row cylinder barrel; 19. a rear row of cylinder barrels; 20. a ball bearing; 21. boring a rod; 22. a workpiece; 23. a filter; 24. a hydraulic pump; 25. an overflow valve; 26. a pressure gauge; 27. an electromagnetic directional valve; 28. a numerical control scraping and rolling machine cutter.
Detailed Description
The following describes the cutting tool of the numerical control scraping and polishing machine according to the present invention in detail with reference to the attached drawings.
Examples
Referring to fig. 1-5, the numerical control scraping tumbling mill cutter of the embodiment includes a main body 16, a blade, a cutter body, a return device, and a hydraulic device, wherein the cutter body is installed at one end of the main body, the other end of the main body is connected with a joint 11 through a connection disc 14, a support block 12 is sleeved outside the joint 11, the hydraulic device includes a piston rod 13 and a piston 15, a cavity is arranged at the center of the main body 16, the piston rod 13 is arranged in the cavity, the piston 15 is fixed at the end of the piston rod 13, a retainer 6 is sleeved outside the main body 16, the retainer 6 includes two rows of cylinder barrels, balls are arranged in the two rows of cylinder barrels, a front spacer 5 is arranged between the retainer and the main body 16, a front runway 4 is arranged at one end of the front spacer 5 close to the cutter body, a rear runway 7 is, Spring gland 9 and bearing frame 10, be equipped with return spring 17 between spring base 8 and the spring gland 9.
The cutter body comprises a fine boring cutter body 3 and a rough boring cutter body 1, the fine boring cutter body 3 is connected with a main body 16, and the rough boring cutter body 1 is connected with the main body 16.
An end cover 2 is arranged at the end part of the rough boring cutter body 1.
The blades comprise a fine boring cutter blade and a rough boring cutter blade, the fine boring cutter blade is arranged on a fine boring cutter body 3, and the rough boring cutter blade is arranged on a rough boring cutter body 1.
The supporting block 12 is sleeved outside the joint and fixed through a countersunk screw.
The cylinder barrel is trapezoidal, and the ball 20 is H-shaped.
The cylinder barrel is provided with two rows: the rolling machine comprises a front-row cylinder barrel 18 and a rear-row cylinder barrel 19, balls are arranged in the front-row cylinder barrel 18 and the rear-row cylinder barrel 19, the balls in the front-row cylinder barrel and the balls in the rear-row cylinder barrel are alternately arranged, the rolling quantity of the balls in the front row reaches 0.13mm, the rolling quantity of the balls in the rear row is increased by 0.02mm and reaches 0.15mm, the integral rigidity of the boring head is increased, the impact force generated by the intermittent cutting of a cutter is offset, and the cutting stability of the boring head in the surface of a processed inner hole is ensured.
The diameter of the ball in the front row of cylinder barrels is the same as that of the ball in the rear row of cylinder barrels, and the rolling amount is controlled by controlling the diameters of the front runway 4 and the rear runway 7.
The front and rear cylinder banks are on the same centerline but of different diameters.
As shown in fig. 6, the connection diagram of the tool for processing work is shown, the joint 11 is connected with the boring bar 21, the connecting disc 14 is connected with the hydraulic pipeline in the boring bar 21, the scraping tumbling mill drives the boring bar 21 to rotate during work, the workpiece 22 is kept stationary, and the workpiece 22 is clamped: the workpiece 22 is hydraulically pressed by oblique angles at two ends, and the middle part of the workpiece is hydraulically floating and clamped.
The hydraulic system on which the cutter works comprises a filter 23, a hydraulic pump 24, an overflow valve 25, a pressure gauge 26 and an electromagnetic directional valve 27, wherein the electromagnetic directional valve 27 is connected with a numerical control scraping tumbling mill cutter 28 in the embodiment, when the electromagnetic directional valve 27 is at the position shown in fig. 7, the cutter is tensioned, and when the electromagnetic directional valve 27 is reversed, the cutter is automatically contracted by internal spring force.
When the cutter is tensioned, hydraulic oil is introduced into the electromagnetic directional valve 27 during operation, and the piston in the cutter drives the cutter body of the fine boring cutter and the retainer 6 to be tensioned; when the cutter is contracted, the hydraulic pressure is unloaded, and the cutter body and the retainer of the fine boring cutter are contracted by utilizing the elasticity of the return spring. The cutter body of the fine boring cutter is in reciprocating motion through a wedge block connected with a piston bolt to realize cutter expansion and contraction, and the cutter head of the rough boring cutter body is a fixed cutter head, so that the size can be finely adjusted, and hydraulic expansion and contraction are avoided.
After a workpiece is clamped, the cutter is expanded, the boring head is driven to rotate by the boring rod, the cutter body of the rough boring cutter is turned most firstly, the cutter body of the fine boring cutter is a floating boring cutter, finish turning is carried out along with the cutter body of the rough boring cutter, the rolling part is rolled along with the cutter body of the fine boring cutter, and the cutter body naturally drives the cutter blades arranged on the cutter body to rotate.
Adopt double ball location to carry out the roll extrusion, add man-hour when first row ball gets into the cylinder and carries out the roll extrusion, play the guide effect, after reacing the second row ball, the second row forms two guide structure with first row ball, and the ball both plays the roll extrusion effect, has about the direction again, through the direction that rigidity restriction cutter is beated and is processed, even the hole bending of raw and other materials self during the roll extrusion, also can lead through the rigidity of cutter, ensures to solve eccentric problem. The utility model can overcome the influence of the straightness of the raw material; the problem of uneven wall thickness of the processed raw materials can be controlled, the processing allowance of an inner hole and an outer circle can be effectively reduced, and the method has great advantages particularly for processing various hot rolled pipes.
Claims (9)
1. The utility model provides a numerical control skiving roller burnishing machine cutter which characterized in that: the novel spring rolling machine comprises a main body, a blade, a cutter body, a return device and a hydraulic device, wherein the cutter body is installed at one end of the main body, the other end of the main body passes through a connecting disc connecting joint, a supporting block is sleeved outside the joint, the hydraulic device comprises a piston rod and a piston, a cavity is formed in the center of the main body, the piston rod is arranged in the cavity, the piston is fixed at the end part of the piston rod, a retainer is sleeved outside the main body and comprises a cylinder barrel, the cylinder barrel is provided with two rows of cylinders, balls are arranged in the two rows of cylinders, a front spacer sleeve is arranged between the retainer and the main body, a front runway is arranged at one end, close to the cutter body, of the front spacer sleeve, the other end of the front runway is provided.
2. The numerically controlled skiving and barreling machine tool according to claim 1, wherein: the cutter body comprises a fine boring cutter body and a rough boring cutter body, the fine boring cutter body is connected with the main body, and the rough boring cutter body is connected with the main body.
3. The numerically controlled skiving and barreling machine tool according to claim 2, wherein: the blades comprise a fine boring cutter blade and a rough boring cutter blade, the fine boring cutter blade is mounted on a fine boring cutter body, and the rough boring cutter blade is mounted on a rough boring cutter body.
4. The numerically controlled skiving and barreling machine tool according to claim 1, wherein: the supporting block is sleeved outside the joint and fixed through a countersunk screw.
5. The numerically controlled skiving and barreling machine tool according to claim 1, wherein: the cylinder barrel is trapezoidal.
6. The numerically controlled skiving and barreling machine tool according to claim 1, wherein: the balls are H-shaped.
7. The numerically controlled skiving and barreling machine tool according to claim 1, wherein: the cylinder barrel is provided with two rows: the cylinder comprises a front-row cylinder barrel and a rear-row cylinder barrel, wherein balls are arranged in the front-row cylinder barrel and the rear-row cylinder barrel, and the balls in the front-row cylinder barrel and the balls in the rear-row cylinder barrel are arranged alternately.
8. The numerically controlled skiving and barreling machine tool according to claim 7, wherein: the diameter of the ball in the front row of cylinders is the same as that of the ball in the rear row of cylinders.
9. The numerically controlled skiving and barreling machine tool according to claim 7, wherein: the front-row cylinder barrel and the rear-row cylinder barrel are on the same central line, and the diameters of the front-row cylinder barrel and the rear-row cylinder barrel are different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920444831.6U CN209830863U (en) | 2019-04-02 | 2019-04-02 | Numerical control scraping and roll finishing machine cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920444831.6U CN209830863U (en) | 2019-04-02 | 2019-04-02 | Numerical control scraping and roll finishing machine cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209830863U true CN209830863U (en) | 2019-12-24 |
Family
ID=68909800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920444831.6U Active CN209830863U (en) | 2019-04-02 | 2019-04-02 | Numerical control scraping and roll finishing machine cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209830863U (en) |
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2019
- 2019-04-02 CN CN201920444831.6U patent/CN209830863U/en active Active
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