CN111014811A - Automatic shim cutter mechanism for broaching key groove - Google Patents
Automatic shim cutter mechanism for broaching key groove Download PDFInfo
- Publication number
- CN111014811A CN111014811A CN201911311012.5A CN201911311012A CN111014811A CN 111014811 A CN111014811 A CN 111014811A CN 201911311012 A CN201911311012 A CN 201911311012A CN 111014811 A CN111014811 A CN 111014811A
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- China
- Prior art keywords
- broaching
- mandrel
- connecting flange
- automatic
- sealing cover
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D41/00—Broaching machines or broaching devices characterised only by constructional features of particular parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D39/00—Accessories for broaching machines or broaching devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The invention discloses an automatic shim cutter mechanism for broaching a key groove, which comprises a broaching machine flower disc, a connecting flange and a mandrel, wherein the broaching machine flower disc is provided with a groove; one end of the mandrel is fixedly connected with a coaxial connecting flange, the connecting flange is connected with a broaching machine chuck through a bolt, an excircle of the mandrel is sleeved with a part to be machined, the end face of the connecting flange is provided with a plurality of groups of clamps for positioning and clamping the part to be machined, a broaching tool groove for moving a broaching tool penetrates through the axis direction of the mandrel, a tool shank of the broaching tool is connected with a main oil cylinder of the broaching machine, the other end of the mandrel is connected with a sealing cover, the sealing cover is provided with a notch matched with the broaching tool groove, the mandrel is radially provided with a cavity communicated with the broaching tool groove, a tool pad is arranged at the bottom of the broaching tool groove, and a lifting structure for lifting or descending; the invention realizes automatic cutter padding, solves the trouble caused by replacing the cutter pad for many times, reduces the labor intensity of staff, improves the working efficiency and leads the processing to be more convenient, quicker and safer.
Description
Technical Field
The invention relates to the technical field of broaching machines, in particular to an automatic shim cutter mechanism for broaching a key groove.
Background
In general, a broaching machine is a machine tool for performing cutting processing of various forms on the surface or inner surface of a manufactured article using various broaches. Such a broaching machine is classified into an inner broaching machine for inner surface machining and a surface broaching machine for surface machining according to a machining portion, and is classified into a vertical type broaching machine and a horizontal type broaching machine according to a cutting direction.
The common key groove multi-cutter broaching requires manual taking of the cutter pad and plugging of the cutter pad of the next cutter into the mandrel, different cutter pads need to be manually replaced every lathe of the cutter, the cutter pads are generally thin, easy to distort and inconvenient to process, the key groove machining mode is complex in operation, labor intensity is high, machining efficiency is reduced, the broach is easily touched in the cutter pad replacing process, and certain potential safety hazards exist.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the existing defects, and provide an automatic cutter supporting mechanism for broaching a key slot, so that automatic cutter supporting is realized, the trouble caused by replacing a cutter support for many times is solved, the labor intensity of workers is reduced, the working efficiency is improved, the processing is more convenient, quicker and safer, and the problems in the background technology can be effectively solved.
In order to achieve the purpose, the invention provides the following technical scheme: an automatic shim cutter mechanism for broaching a key groove comprises a broaching machine flower disc, a connecting flange and a mandrel; one end of the mandrel is fixedly connected with a coaxial connecting flange, the connecting flange is connected with a broaching machine chuck through a bolt, a part to be machined is sleeved on the outer circle of the mandrel, a plurality of groups of clamps for positioning and clamping the part to be machined are arranged on the end face of the connecting flange, a broaching groove for moving a broaching tool penetrates through the mandrel in the axis direction, a tool shank of the broaching tool is connected with a main oil cylinder of the broaching machine, the other end of the mandrel is connected with a sealing cover, the sealing cover is provided with a notch matched with the broaching groove, the mandrel is radially provided with a cavity communicated with the broaching groove, a tool pad is arranged at the bottom of the broaching groove, and a lifting structure for lifting or lowering the tool pad is arranged in the cavity;
the utility model discloses a cutting tool, including bearing, screw rod, screw nut seat, bearing, screw nut seat, bearing, screw rod, lifting structure, bearing, screw nut, screw rod, screw nut seat, screw rod, screw nut, seal cover, cutting pad.
Preferably, the broaching machine flower disc and the connecting flange are both provided with notches matched with the broaching tool groove of the mandrel.
Preferably, the clamp comprises a screw rod in threaded connection with the connecting flange, a pressing plate is sleeved at one end of the screw rod, and the pressing plate is pressed on the end face of the part to be processed through a nut.
Preferably, the sealing cover is connected with the mandrel through a bolt, and a scale value is arranged on the end face of the sealing cover close to the notch.
Preferably, one end, close to the knob, of the rod body of the screw rod is sleeved with a sealing cover for sealing the bearing II.
Preferably, two opposite side walls of the cavity are provided with sliding grooves, and two opposite side walls of the screw rod nut seat are provided with sliding blocks in sliding fit with the sliding grooves on the corresponding sides.
Preferably, the first bearing and the second bearing are both thrust bearings.
Preferably, the waist is isosceles trapezoid, and two inclined planes of the waist are respectively inconsistent with corresponding inclined planes of the two guide inclined blocks.
Preferably, two axial side ends of the horizontal part are in transition fit with corresponding side walls of the broach slot respectively.
Compared with the prior art, the invention has the beneficial effects that: this keyway broaching is with automatic pad sword mechanism, the rotary knob, the knob drives the lead screw and rotates, the lead screw drives the lead screw nut seat at both ends and moves in opposite directions or back to back mutually, and then drive the shim through the inclined plane and go up and down, realize automatic pad sword, need not many times the different gaskets of manual use and carry out pad sword when broaching the keyway, the trouble of changing the shim and bringing many times has been solved, staff's intensity of labour has been reduced, and work efficiency has been improved, make processing convenient and fast and safety more, the dabber passes through flange and installs on the broaching machine flower disc, suitable change the use on the broaching machine.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a mandrel construction of the present invention;
FIG. 3 is a schematic view of the internal structure of the mandrel of the present invention;
figure 4 is a cross-sectional view of a mandrel of the present invention.
In the figure: the tool comprises a broaching machine chuck 1, a connecting flange 2, a mandrel 3, a broach slot 301, scale values 302, a capping 303, a sliding chute 304, a broaching tool 4, a clamp 5, a part to be machined 6, a shim 7, a horizontal part 701, a waist part 702, a guide inclined block 8, a screw nut seat 9, a screw 10, a knob 11, a cavity 12, a bearing I13 and a bearing II 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: an automatic shim cutter mechanism for broaching a key groove comprises a broaching machine flower disc 1, a connecting flange 2 and a mandrel 3; one end of a mandrel 3 is fixedly connected with a coaxial connecting flange 2, the connecting flange 2 is connected with a broaching machine disc chuck 1 through bolts, the excircle of the mandrel 3 is sleeved with a part 6 to be machined, the end surface of the connecting flange 2 is provided with a plurality of groups of clamps 5 for positioning and clamping the part 6 to be machined, a broaching tool groove 301 for moving a broaching tool 4 is arranged in the axial direction of the mandrel 3 in a penetrating way, the tool shank of the broaching tool 4 is connected with a main oil cylinder of the broaching machine, the main oil cylinder of the broaching machine pulls the broaching tool 4 to move axially in the broaching tool groove 301, the key groove is broached on the part 6 to be processed, the other end of the mandrel 3 is connected with a sealing cover 303, the sealing cover 303 can be detached, cleaning or part replacement of the cavity 12 at a later stage is facilitated, the sealing cover 303 is provided with a notch matched with the broach groove 301, the mandrel 3 is radially provided with the cavity 12 communicated with the broach groove 301, the bottom of the broach groove 301 is provided with a cutter pad 7, and a lifting structure used for lifting or descending the cutter pad 7 is arranged in the cavity 12;
the lifting structure comprises a screw rod 10 with reverse threads at two ends, one end of the screw rod 10 is rotatably connected with the side wall of a cavity 12 through a bearing I13, the other end of the screw rod 10 penetrates through a bearing II 14 arranged in the sealing cover 303, the end part of the screw rod is provided with a knob 11, two reverse thread sections of the screw rod 10 are matched with screw rod nut seats 9, the upper end of each screw rod nut seat 9 is fixedly connected with a guide inclined block 8, the opposite surfaces of the two guide inclined blocks 8 are inclined planes and are in an inverted V shape, the knife pad 7 comprises a waist part 702 which is positioned between the two guide inclined blocks 8 and is contacted with the two guide inclined blocks 8, the upper end of the waist part 702 is a horizontal part 701, the knob 11 rotates the screw rod 10, the screw rod 10 drives the screw rod nut seats 9 at the two ends to move towards or away from each other, and then the knife pad 7 is driven to lift through the inclined planes, the labor intensity of staff is reduced, and the working efficiency is improved;
both the broaching machine flower disc 1 and the connecting flange 2 are provided with notches matched with the broaching tool groove 301 of the mandrel 3;
the clamp 5 comprises a screw rod in threaded connection with the connecting flange 2, a pressing plate is sleeved at one end of the screw rod and is in compression joint with the end face of the part 6 to be machined through a nut, the pressing plate is used for tightly pressing and fixing the part 6 to be machined, and the part 6 to be machined is prevented from sliding radially under the tension force during broaching;
the sealing cover 303 is connected with the mandrel 3 through a bolt, and a scale value 302 is arranged on the end face of the sealing cover 303 close to the notch, so that the height of the cutter pad 7 can be conveniently adjusted, and the broaching depth of the key groove can be conveniently adjusted;
one end of the rod body of the screw rod 10, which is close to the knob 11, is sleeved with a sealing cover for sealing a second bearing 14, so that dust is prevented from entering;
the two opposite side walls of the cavity 12 are provided with sliding grooves 304, the two opposite side walls of the screw-nut seat 9 are provided with sliding blocks which are in sliding fit with the sliding grooves 304 on the corresponding sides, and through the matching of the sliding blocks and the sliding grooves 304, the radial force borne by the broach 4 in the broaching process is borne, the stress deformation of the screw 10 is reduced, and the relative motion precision of the two screw-nut seats 9 is maintained;
the first bearing 13 and the second bearing 14 are thrust bearings and are used for bearing axial force and reducing friction;
the waist 702 is in an isosceles trapezoid shape, two inclined planes of the waist 702 are respectively abutted against corresponding inclined planes of the two guide inclined blocks 8, and the two guide inclined blocks move towards or away from each other through the matching of the inclined planes of the two guide inclined blocks 8 and the two inclined planes of the waist 702, so that the waist 702 is lifted or descended;
two axial side ends of the horizontal part 701 are respectively in transition fit with corresponding side walls of the broach slot 301, and the horizontal part 701 can slide up and down in the broach slot 301, and meanwhile, entering of debris can be reduced.
The working principle is as follows: when the broaching tool is used, a part 6 to be machined is sleeved into a mandrel 3, the part 6 to be machined is positioned and clamped by a clamp 5, a broach 4 is arranged in a broach groove 301 of the mandrel 3, a handle of the broach 4 is connected with a broaching machine main oil cylinder, then a knob 11 is rotated, the knob 11 drives a screw rod 10 to rotate, the screw rod 10 drives screw rod nut seats 9 at two ends to move oppositely, two guide inclined blocks 8 move oppositely to further drive a tool rest 7 to rise, the primary broaching depth of a key groove is adjusted according to a scale value 302, when the broach 4 brows the key groove, the broach 4 transmits radial force to the tool rest 7, the tool rest 7 transmits the radial force to the two guide inclined blocks 8 and finally transmits the radial force to a sliding block in a sliding groove 304 to reduce the radial deformation of the screw rod 10, the knob 11 is rotated reversely after primary broaching is finished, the screw rod 10 rotates reversely, the tool rest 7 falls down, then the broaching machine main oil cylinder returns the broach 4, and then, the knob 11 is rotated again, the height of the cutter pad 7 is adjusted again, broaching is performed again, broaching and tool retracting are performed for multiple times, the height of the cutter pad is adjusted, and finally, broaching operation of the rear key groove is completed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a keyway broaching is with automatic backing tool mechanism which characterized in that: comprises a broaching machine flower disc (1), a connecting flange (2) and a mandrel (3); one end of the mandrel (3) is fixedly connected with a coaxial connecting flange (2), the connecting flange (2) is connected with the broaching machine flower disc (1) through bolts, the excircle of the mandrel (3) is sleeved with a part (6) to be processed, the end face of the connecting flange (2) is provided with a plurality of groups of clamps (5) for positioning and clamping the part (6) to be processed, a broach slot (301) for the broach (4) to move is arranged in the axial direction of the mandrel (3) in a penetrating way, the handle of the broach (4) is connected with the main oil cylinder of the broaching machine, the other end of the mandrel (3) is connected with a sealing cover (303), the sealing cover (303) is provided with a notch matched with the broach slot (301), a cavity (12) communicated with the broach groove (301) is radially arranged on the mandrel (3), a knife pad (7) is arranged at the bottom of the broach groove (301), and a lifting structure for lifting or lowering the knife pad (7) is arranged in the cavity (12);
the utility model discloses a cutting tool, including bearing (10) that the lift structure includes that both ends screw thread is reverse, the one end of lead screw (10) is passed through bearing (13) and is connected with the lateral wall rotation of cavity (12), the other end of lead screw (10) passes bearing two (14) and the tip that sets up in closing cap (303) and is equipped with knob (11), two reverse screw thread sections of lead screw (10) all cooperate lead screw nut seat (9), the upper end fixedly connected with direction sloping block (8) of lead screw nut seat (9), the opposite face of two direction sloping blocks (8) is the inclined plane and is "eight" font of falling, cutting pad (7) including be located between two direction sloping blocks (8) and with waist (702) of two direction sloping block (8) contacts, the upper end of waist (702) is horizontal part (701).
2. The automatic shim mechanism for keyway broaching of claim 1, wherein: the broaching machine flower disc (1) and the connecting flange (2) are both provided with notches matched with the broaching grooves (301) of the mandrel (3).
3. The automatic shim mechanism for keyway broaching of claim 1, wherein: the fixture (5) comprises a screw rod in threaded connection with the connecting flange (2), a pressing plate is sleeved at one end of the screw rod, and the pressing plate is pressed on the end face of the part (6) to be processed through a nut.
4. The automatic shim mechanism for keyway broaching of claim 1, wherein: the sealing cover (303) is connected with the mandrel (3) through a bolt, and a scale value (302) is arranged on the end face of the sealing cover (303) close to the notch.
5. The automatic shim mechanism for keyway broaching of claim 1, wherein: one end of the rod body of the screw rod (10) close to the knob (11) is sleeved with a sealing cover for sealing the bearing II (14).
6. The automatic shim mechanism for keyway broaching of claim 1, wherein: two opposite side walls of the cavity (12) are provided with sliding grooves (304), and two opposite side walls of the feed screw nut seat (9) are provided with sliding blocks which are in sliding fit with the sliding grooves (304) on the corresponding sides.
7. The automatic shim mechanism for keyway broaching of claim 1, wherein: the first bearing (13) and the second bearing (14) are both thrust bearings.
8. The automatic shim mechanism for keyway broaching of claim 1, wherein: waist (702) are isosceles trapezoid, and two inclined planes of waist (702) are inconsistent with the corresponding inclined planes of two direction sloping blocks (8) respectively.
9. The automatic shim mechanism for keyway broaching of claim 1, wherein: and the two axial side ends of the horizontal part (701) are in transition fit with corresponding side walls of the broach slot (301) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911311012.5A CN111014811A (en) | 2019-12-18 | 2019-12-18 | Automatic shim cutter mechanism for broaching key groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911311012.5A CN111014811A (en) | 2019-12-18 | 2019-12-18 | Automatic shim cutter mechanism for broaching key groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111014811A true CN111014811A (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911311012.5A Pending CN111014811A (en) | 2019-12-18 | 2019-12-18 | Automatic shim cutter mechanism for broaching key groove |
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| Country | Link |
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| CN (1) | CN111014811A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117921081A (en) * | 2024-03-06 | 2024-04-26 | 云南云内动力机械制造有限公司 | Broaching fixture and method for key groove of hole part |
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| CN207479728U (en) * | 2017-11-01 | 2018-06-12 | 上海源升机电有限公司 | A kind of Adjustable tool apron for automotive brake stent broaching cutters |
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| CN208304017U (en) * | 2018-06-25 | 2019-01-01 | 成都运城制版有限公司 | A kind of roller plug internal keyway of conical hole broacher |
| CN208613882U (en) * | 2018-08-08 | 2019-03-19 | 玉环拓冠机械有限公司 | A kind of lathe of the drawing keyway of adjustable keyway depth |
| CN208613884U (en) * | 2018-08-08 | 2019-03-19 | 玉环拓冠机械有限公司 | A kind of lathe drawing keyway |
| CN110228093A (en) * | 2019-07-19 | 2019-09-13 | 张特 | Packages printing paper edge grinding cutting means |
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2019
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| US6132151A (en) * | 1999-01-19 | 2000-10-17 | Courmier; Jerry W. | Device for stabilizing workstock on a broach tool guide sleeve |
| CN101774044A (en) * | 2010-03-12 | 2010-07-14 | 扬州大学 | Numerical control opening and closing profile broaching machine |
| CN202180226U (en) * | 2011-07-26 | 2012-04-04 | 苏州亚太金属有限公司 | Broaching tool for tooth-positioning keyway |
| CN203448764U (en) * | 2013-09-16 | 2014-02-26 | 重庆工具厂有限责任公司 | Inserted tooth broach capable of adjusting insertion depth |
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| CN205129481U (en) * | 2015-11-25 | 2016-04-06 | 盛瑞传动股份有限公司 | Tool changing frame |
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| CN117921081A (en) * | 2024-03-06 | 2024-04-26 | 云南云内动力机械制造有限公司 | Broaching fixture and method for key groove of hole part |
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Application publication date: 20200417 |
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| RJ01 | Rejection of invention patent application after publication |