CN204867569U - Bore boring combination cutting tool - Google Patents
Bore boring combination cutting tool Download PDFInfo
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- CN204867569U CN204867569U CN201520581244.3U CN201520581244U CN204867569U CN 204867569 U CN204867569 U CN 204867569U CN 201520581244 U CN201520581244 U CN 201520581244U CN 204867569 U CN204867569 U CN 204867569U
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Abstract
The utility model provides the utility model discloses a railway freight car walks the bore boring combination cutting tool of capable part side bearer supporting seat spot facing work, including tool bit 10 and handle of a knife 20, the anterior segment of tool bit 10 is spiral bit 11, and back end 12 is tertiary coaxial round platform stairstepping structure, and the round platform diameter is reduced to the anterior segment orientation by 20 ends on the handle of a knife in proper order, and the border punishment of every grade of round platform do not sets up welding outer blade group 1, 2 and 3, and every group blade is the 2 -4 sword, along round platform circumferential edge along evenly distributed, for improving life, cutter anterior segment spiral bit 11 adopts removable connected mode with back end 12, in the processing, at first processing out the aperture by cutter anterior segment spiral bit 11, then by 1, the 2 and 3 hierarchical reamings of the outer blade group of welding on the back end 12, finally reaching to complete the processing of, the machining precision is by the outer trajectory control that follows of final outer blade group 3, the utility model provides a prior art need the problem of twice change processing cutter, realized one -pass processing, improved machining efficiency and machining precision.
Description
Technical field
The utility model relates to a kind of brill boring compound tool, especially for the brill boring compound tool of railway freight-car running part side bearer supporting seat hole machined.
Background technology
Side frame is the critical component of goods train vehicle running part, supporting bore is two circular holes 30 side frame needing process, as depicted in figs. 1 and 2, what the processing in current side bearer supporting seat hole adopted is after boring again bore hole implement technique step by step, namely first side frame is located, is clamped on boring machine supporting seat hole tool, first drill bit is installed and used, small-bore boring is carried out according to processing line, preprocessing is carried out to circular hole 30, and then change use boring cutter, support bore according to processing line boring, expand aperture, complete the processing supporting bore.
In the machining process in the side bearer supporting seat hole of prior art, need to change process tool, in order to ensure aperture size precision in Boring Process twice, processing limit, limit is needed to measure aperture size, working (machining) efficiency is low, and machining accuracy also has much room for improvement, and can not adapt to the demand of actual production completely.
Utility model content
The utility model provides a kind of brill boring compound tool for railway freight-car running part side bearer supporting seat hole machined, comprise cutter head 10 and handle of a knife 20, it is characterized in that: the leading portion of described cutter head 10 is spiral bit 11, the drill bit part of spiral bit 11 is two swords, and sword face angle A is 120 °.
Described cutter head back segment 12 is three grades of coaxial circles step trapezium structures, round platform diameter is reduced to leading portion spiral bit 11 direction successively by handle of a knife 20 end, the edge of every grade of round platform arranges the outer set of blades 1,2 and 3 of welding respectively, often organize blade and can be 2-4 sword, preferred version is 4 angle of throat sheets, often organizes blade along round platform circumferential edge along being uniformly distributed, as shown in Figure 2,3, each blade facets and cutter shaft are to angled B, and described angle B is preferably 60 °.
In order to improve cutting-tool's used life, cutter leading portion spiral bit 11 and cutter back segment 12 adopt replaceable connected mode, can change at any time after cutter leading portion spiral bit 11 or cutter back segment 12 wear out failure, concrete mode can select screw, screw rod and other connection means.
The beneficial effects of the utility model: the utility model solves the problem that side bearer supporting seat hole machined process in prior art needs to change for twice process tool, achieve one-pass, ensured to support bore aperture size precision by the outer blade 3 of last group described in processing, both working (machining) efficiency can be improved, can machining accuracy be improved again, meet actual production demand better.
Accompanying drawing explanation
Fig. 1, DZ1 side frame front view.
Fig. 2, DZ1 side frame top view.
The front view of Fig. 3, brill boring compound tool.
The left view of boring compound tool is bored shown in Fig. 4, Fig. 3.
Detailed description of the invention
The utility model mainly solves the technical problem of side bearer supporting seat hole machined repeatedly tool changing, realizes process one-pass, for DZ1 Processing Side Frame, is described further by reference to the accompanying drawings to 26S Proteasome Structure and Function of the present utility model.
Railway freight-car DZ1 side frame needs the circular support bore of processing two diameters between 64-65 millimeter, the brill boring compound tool that the present embodiment uses the utility model to provide, specifically select three group of four sword scheme, as shown in Figure 3 and Figure 4, namely cutter back segment 12 establishes three outer set of blades, often organizes knife number and is 4 swords; Cutter leading portion spiral bit 11 adopts screw to be connected with cutter back segment 12, and attachment screw 4 position as shown in Figure 3; Processing adopts one-pass technique, tool feeding speed 10-14 mm/min, cutter rotating speed controls at 120-130 rev/min, the diameter of cutter leading portion spiral bit 11 is selected to be 30 millimeters, length is 60 millimeters, angle, sword face is 120 °, and three grades of cutters of cutter back segment 12 are diametrically followed successively by 46 millimeters, 56 millimeters and 64.3 millimeters outward, and each blade facets and cutter shaft are 60 ° to angulation B.
In the process supporting bore, first process by the spiral bit 11 of cutter leading portion the aperture that diameter is 30 millimeters, then by welding outer set of blades 1,2 and 3 classification reaming on cutter back segment 12, until reach processing dimension requirement, accurate to dimension is by the outer TRAJECTORY CONTROL of last outer set of blades 3 described, make the diameter of support bore remain between 64-65 millimeter, ensure to support bore aperture size precision, meet production and processing requirement.
Claims (5)
1. bore a boring compound tool, comprise cutter head (10) and handle of a knife (20), it is characterized in that:
The leading portion of described cutter head (10) is spiral bit (11), and spiral bit (11) drill bit part is two swords, and angle, sword face (A) is 120 °;
The back segment (12) of described cutter head (10) is three grades of coaxial circles step trapezium structures, round platform diameter is held by handle of a knife (20) and is reduced successively to leading portion spiral bit (11) direction, the edge of every grade of round platform arranges the outer set of blades of welding (1), (2) and (3) respectively, often organizing knife number is 2-4 sword, each group of blade is along round platform circumferential edge along being uniformly distributed, and each blade facets and cutter shaft are to angled (B).
2. brill boring compound tool according to claim 1, is characterized in that: the outer set of blades (1) of welding that described round platform circumferential edge is arranged along grouping, (2) and (3), often organizes knife number and is 4 swords.
3. brill boring compound tool according to claim 1, is characterized in that: leading portion spiral bit (11) and cutter back segment (12) adopt replaceable connected mode.
4. brill boring compound tool according to claim 2, is characterized in that: leading portion spiral bit (11) and cutter back segment (12) adopt replaceable connected mode.
5. the brill boring compound tool according to any one of Claims 1-4, is characterized in that: each blade facets and cutter shaft are 60 ° to angulation (B).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520581244.3U CN204867569U (en) | 2015-08-05 | 2015-08-05 | Bore boring combination cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520581244.3U CN204867569U (en) | 2015-08-05 | 2015-08-05 | Bore boring combination cutting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204867569U true CN204867569U (en) | 2015-12-16 |
Family
ID=54811997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520581244.3U Active CN204867569U (en) | 2015-08-05 | 2015-08-05 | Bore boring combination cutting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204867569U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107671327A (en) * | 2017-09-30 | 2018-02-09 | 广东星光传动股份有限公司 | A kind of compound tool and box body of speed reducer |
-
2015
- 2015-08-05 CN CN201520581244.3U patent/CN204867569U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107671327A (en) * | 2017-09-30 | 2018-02-09 | 广东星光传动股份有限公司 | A kind of compound tool and box body of speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 161002 locomotive Road 55, Yangming District, Heilongjiang, Mudanjiang Patentee after: Mudanjiang Zhongche Jinyuan Casting Industry Co. Address before: 157013 Heilongjiang province Mudanjiang City Yangming District Road No. 55 locomotive Patentee before: Mudanjiang Jinyuan Draw Gear and Draft Gear Manufacturing Limited Company |