CN102240819B - Loose-preventing structure of automatic cutter releasing pulling mechanism - Google Patents
Loose-preventing structure of automatic cutter releasing pulling mechanism Download PDFInfo
- Publication number
- CN102240819B CN102240819B CN 201110167569 CN201110167569A CN102240819B CN 102240819 B CN102240819 B CN 102240819B CN 201110167569 CN201110167569 CN 201110167569 CN 201110167569 A CN201110167569 A CN 201110167569A CN 102240819 B CN102240819 B CN 102240819B
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- China
- Prior art keywords
- transition shaft
- transition axis
- pull rod
- semicircular ring
- semi
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Abstract
The invention relates to a loos-preventing structure used for numeric control equipment automatic cutter releasing pulling mechanism, and the loos-preventing structure comprises a transition shaft arranged in a hollow spindle and a pull rod which is in threaded connection with the transition shaft, wherein the spindle is provided with a key slot, the transition shaft is provided with a key which penetrates through the key slot and can axially move in the key slot, and a spring assembly is arranged between the inner end of the transition shaft and the inner step of the spindle; and the pull rod is in threaded connection with the interior of the transition shaft and penetrates through the transition shaft, the pull rod arranged at one side of the outer end of the transition shaft is provided with a semi-ring mounting slot, the semi-ring mounting slot is internally provided with a semi ring, and the outer end of the transition shaft is provided with a gland used for fixing the semi ring at a mounting position. In the invention, the semi ring is arranged on the pull rod, the locations of the pull rod and the transition shaft are fixed, the length of threaded connection of the pull rod and the transition shaft is maintained constant, and the phenomenon that the cutter pulling force of the spindle is reduced as the threaded connection of the pull rod and the transition shaft is loosened can be prevented.
Description
Technical field
The present invention relates to the automatic loose tool-broaching mechanism of main shaft in the large-sized numerical control equipment, specifically a kind of anti-loose structure of automatic loose tool-broaching mechanism.
Background technology
The automatic loose tool-broaching mechanism of main shaft in the large-sized numerical control equipment, the main completion changed annex head and process tool function automatically.Existing automatic loose tool-broaching mechanism mainly is made up of main shaft, transition axis, pull bar, groups of springs etc., is threaded between transition axis and the pull bar, and transition axis is provided with Song Daojian.Groups of springs is used to provide broach force, and loose cutter key is accomplished loose cutter action by hydraulic cylinder or reinforcement air cylinder driven.In this structure, because main shaft need carry out positive and negative transhipment merit at a high speed in process, becoming flexible will inevitably appear in being threaded between transition axis and the pull bar, broach force is descended, thereby influence cutting effect.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned prior art, a kind of anti-loose structure that is used for the automatic loose tool-broaching mechanism of numerical control device is provided, this anti-loose structure can prevent effectively that transition axis is loosening with the appearance that is threaded between the pull bar.
According to technical scheme provided by the invention: a kind of anti-loose structure of automatic loose tool-broaching mechanism; Comprise transition axis in the main shaft that is installed in hollow and the pull bar that is threaded with said transition axis; Have keyway on the said main shaft; Said transition axis be provided with pass said keyway and can be in said keyway axially movable key; Between the interior step of the inner of said transition axis and said main shaft groups of springs is installed, characteristic is: said pull rod screw is connected the inside of said transition axis and runs through said transition axis, is positioned on the said pull bar of said transition axis outer end one side to have the semicircular ring mounting groove; In the said semicircular ring mounting groove semicircular ring is installed, the outer end of said transition axis is provided with the gland that said semicircular ring is fixed on the installation site.
Be provided with interior step in the said gland, said interior step is corresponding with the position of said semicircular ring.
Said gland is fixed on the said transition axis through screw.
Said groups of springs adopts the disk spring group.
Compared with present technology the present invention has the following advantages: the present invention installs semicircular ring on pull bar, with the fixed-site of pull bar and transition axis, guarantees that both length that is threaded remains unchanged, and prevents that both are threaded to cause main spindle broach force to descend after loosening; The present invention is simple in structure, compactness, rationally.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Embodiment below in conjunction with in the accompanying drawing is further described the present invention.
Among Fig. 1, comprise main shaft 1, gland 2, semicircular ring 3, transition axis 4, key 5, packing ring 6, pull bar 7, groups of springs 8, packing ring 9, claw 10, keyway 11, semicircular ring mounting groove 12, interior step 13, screw 14 etc.
As shown in Figure 1, the present invention is a kind of anti-loose structure that is used for the automatic loose tool-broaching mechanism of numerical control device, comprises transition axis 4 in the main shaft 1 that is installed in hollow and the pull bar 7 that is threaded with transition axis 4.Have two keyways that communicate with hollow hole 11 of symmetry on the main shaft 1, be fixed with through screw on the transition axis 4 and pass above-mentioned two keyways 11 respectively and give prominence to two keys 5 outside.Key 5 can be moved axially in keyway 11 by hydraulic cylinder or reinforcement air cylinder driven.
Between the interior step of the inner of transition axis 4 and main shaft 1 groups of springs 8 is installed, groups of springs 8 is used to provide broach force.Groups of springs 8 preferably adopts the disk spring group.Per three one group of disk spring is combined to form the disk spring group more.Disk spring arrangement mode in the groups of springs 8, group number and decrement are how much calculating according to the required broach force of numerical control device.Packing ring 6 and packing ring 9 are installed in the two ends of disk spring group 8, directly bear the elastic load of disk spring group 8, and packing ring 9 directly contacts with the interior step of main shaft 1, as the stiff end of disk spring group 8 compressions.
Pull bar 7 is threaded in the inside of transition axis 4 and runs through transition axis 4, is positioned on the pull bar 7 of transition axis 4 outer ends one side to have semicircular ring mounting groove 12.Transition axis 4 cooperate with pull bar 7 put in place after, semicircular ring 3 is installed in semicircular ring mounting groove 12.Semicircular ring 3 is made up of two semicircles, and the back that is in place forms a full circle.
The outer end of transition axis 4 is provided with the gland 2 that semicircular ring 3 is fixed on the installation site, and semicircular ring 3 can't be unclamped.Gland 2 is fixed on the transition axis 4 through screw 14.Step 13 in being provided with in the gland 2, interior step 13 is corresponding with the position of semicircular ring 3.Because transition axis 4 and pull bar 7 are through being threaded, connecting thread take place certain loosening after, transition axis 4 retreat to then can't continue again to retreat after semicircular ring 3 contacts, so just prevented becoming flexible of screw thread, guaranteed main spindle broach force.
The course of work of automatic loose tool-broaching mechanism is following: in main shaft pine cutter process, key 5 is promoted to be moved to front-end of spindle by rear-end of spindle by oil cylinder or cylinder, compresses dish-like groups of springs 8 thus, and claw 10 is opened, and is in loose cutter position; In the main spindle broach process; Oil cylinder or cylinder and key 5 break away from, and key 5 to the rear-end of spindle motion, makes claw 10 closures under the 8 restoring force effects of disk spring group; Be in the broaching tool position, and the size of the spring restoring force that disk spring group 8 decrements are converted into is the broach force of numerical control device.
The present invention forms main spindle broach force through transition axis 4 with the force compresses disk spring group 8 that is threaded of pull bar 7; Semicircular ring 3 is installed on pull bar 7 simultaneously; With the fixed-site of pull bar 7 with transition axis 4; The length that is threaded that guarantees both remains unchanged, and prevents that both are threaded to cause main spindle broach force to descend after loosening.The present invention the present invention thus is simple in structure, compactness, rationally.
Claims (4)
1. the anti-loose structure of an automatic loose tool-broaching mechanism; Comprise transition axis (4) in the main shaft (1) that is installed in hollow and the pull bar (7) that is threaded with said transition axis (4); Have keyway (11) on the said main shaft (1); Said transition axis (4) be provided with pass said keyway (11) and can be in said keyway (11) axially movable key (5); Groups of springs (8) is installed between the interior step of the inner of said transition axis (4) and said main shaft (1); It is characterized in that: said pull bar (7) is threaded in the inside of said transition axis (4) and runs through said transition axis (4); Be positioned on the said pull bar (7) of said transition axis (4) outer end one side and have semicircular ring mounting groove (12), semicircular ring (3) is installed in the said semicircular ring mounting groove (12), the outer end of said transition axis (4) is provided with the gland (2) that said semicircular ring (3) is fixed on the installation site.
2. according to the anti-loose structure of the described automatic loose tool-broaching mechanism of claim 1, it is characterized in that: be provided with interior step (13) in the said gland (2), the interior step (13) of said gland (2) is corresponding with the position of said semicircular ring (3).
3. according to the anti-loose structure of the described automatic loose tool-broaching mechanism of claim 1, it is characterized in that: said gland (2) is fixed on the said transition axis (4) through screw (14).
4. according to the anti-loose structure of the described automatic loose tool-broaching mechanism of claim 1, it is characterized in that: said groups of springs (8) adopts the disk spring group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110167569 CN102240819B (en) | 2011-06-21 | 2011-06-21 | Loose-preventing structure of automatic cutter releasing pulling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110167569 CN102240819B (en) | 2011-06-21 | 2011-06-21 | Loose-preventing structure of automatic cutter releasing pulling mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102240819A CN102240819A (en) | 2011-11-16 |
| CN102240819B true CN102240819B (en) | 2012-12-19 |
Family
ID=44959166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110167569 Expired - Fee Related CN102240819B (en) | 2011-06-21 | 2011-06-21 | Loose-preventing structure of automatic cutter releasing pulling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102240819B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107309446A (en) * | 2017-06-30 | 2017-11-03 | 广州市昊志机电股份有限公司 | A kind of main shaft pull bar mounting structure |
| CN111853122B (en) * | 2020-07-21 | 2021-05-28 | 珠海格力电器股份有限公司 | Disc spring assembly, electric spindle and processing equipment |
| CN113477954B (en) * | 2021-07-07 | 2022-11-04 | 珠海格力电器股份有限公司 | Automatic tool changing motorized spindle and machine tool |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3665033D1 (en) * | 1986-09-10 | 1989-09-21 | Schiess Ag | Spindle for a machine tool quill provided with a socket for holding a turning or a milling tool |
| US4856153A (en) * | 1988-10-26 | 1989-08-15 | The Monarch Machine Tool Company | Spindle mechanism |
| CN2416994Y (en) * | 2000-03-28 | 2001-01-31 | 永丰栈有限公司 | Machine tool spindle broach mechanism |
| CN2659609Y (en) * | 2003-11-07 | 2004-12-01 | 叶横灿 | Mainshaft broaching tool gear |
| JP5012671B2 (en) * | 2008-06-02 | 2012-08-29 | 株式会社デンソー | Processing equipment |
| CN202155534U (en) * | 2011-06-21 | 2012-03-07 | 无锡桥联数控机床有限公司 | Anti-loosing structure of automatic releasing and clamping tool mechanism |
-
2011
- 2011-06-21 CN CN 201110167569 patent/CN102240819B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN102240819A (en) | 2011-11-16 |
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Granted publication date: 20121219 Termination date: 20150621 |
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