CN109732395B - Horizontal machining center is with two linkage guard gates - Google Patents
Horizontal machining center is with two linkage guard gates Download PDFInfo
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- CN109732395B CN109732395B CN201910051782.4A CN201910051782A CN109732395B CN 109732395 B CN109732395 B CN 109732395B CN 201910051782 A CN201910051782 A CN 201910051782A CN 109732395 B CN109732395 B CN 109732395B
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- 230000007246 mechanism Effects 0.000 claims abstract description 49
- 230000005540 biological transmission Effects 0.000 claims description 38
- 230000001681 protective effect Effects 0.000 abstract description 25
- 230000001360 synchronised effect Effects 0.000 abstract description 7
- 230000005484 gravity Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a double-leaf linkage protective door for a horizontal machining center, which comprises a door frame, an upper sliding door and a lower sliding door, wherein the upper sliding door and the lower sliding door are staggered front and back and are arranged on the door frame in an up-down movable mode, a driving mechanism is arranged on the door frame, the output end of the driving mechanism is respectively connected with the upper sliding door and the lower sliding door, and the driving mechanism is used for driving the upper sliding door and the lower sliding door to synchronously open and close. The up-moving door and the down-moving door of the double-linkage protective door are installed on the door frame in a front-back staggered mode, and the up-moving door and the down-moving door are synchronously driven and linked by the same driving mechanism respectively, so that the synchronous opening and closing of the up-moving door and the down-moving door can be realized, the impact of the up-moving door and the down-moving door is avoided, the impact sound can not be caused, the use of the protective door is more stable, and meanwhile, the opening and closing speed of the protective door has a larger lifting space, and the processing efficiency of a horizontal processing center is improved. In addition, except its own gravity when the upward sliding door is closed, the driving mechanism provides additional driving force, and the phenomenon of jamming, jamming or crashing can not occur, so that the safety is high.
Description
Technical Field
The invention relates to a machine tool protective door, in particular to a double-leaf linkage protective door for a horizontal machining center.
Background
The existing horizontal protective door for the machining center comprises two doors which are arranged up and down, namely an upper sliding door and a lower sliding door, a driving mechanism is connected with the lower sliding door and drives the lower sliding door to move upwards until the lower sliding door touches the upper sliding door, and the upper sliding door is supported by the lower sliding door to move upwards together until the two sliding doors are opened in place. The disadvantages of such sliding doors are mainly: 1. when the protective door is opened, the downward moving door has impact sound when upward contacting the upward moving door, and the impact sound is larger as the upward moving speed is higher, so that the design of the door opening speed is limited due to the consideration of noise reduction; 2. when the protective door is closed, the upward-moving door moves downwards to contact with the stop block to stop movement, and impact sound is generated; 3. when the protective door is closed, the driving mechanism drives the downward-moving door to move downwards, the upward-moving door moves downwards to be in contact with the stop block under the action of self gravity, the blocking phenomenon is easy to occur, and the protective door can be blocked or even falls down when being seriously crashed.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: to the not enough of prior art, provide a horizontal machining center with two linkage guard gates, this guard gate can realize the synchronous opening and shutting of upward-moving door and downward-moving door, avoided upward-moving door and downward-moving door's striking, can not cause the impact sound, make the use of guard gate more stable, the door speed of opening and shutting of guard gate has great promotion space simultaneously, is favorable to improving horizontal machining center's machining efficiency.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a horizontal machining center is with two linkage guard gates, includes door frame, upward move the door and move the door down, upward move the door with move the door and stagger and install from top to bottom movably on the door frame down, the door frame on be provided with actuating mechanism, actuating mechanism's output respectively with upward move the door with move the door down and link to each other, actuating mechanism be used for the drive upward move the door with move the door down and open and shut in step.
The double-leaf linkage protective door disclosed by the invention is characterized in that the upper sliding door and the lower sliding door are arranged on the door frame in a front-back staggered way, and the upper sliding door and the lower sliding door are respectively driven and linked by the same driving mechanism in a synchronous way, so that the upper sliding door and the lower sliding door can be synchronously opened and closed, the impact of the upper sliding door and the lower sliding door is avoided, the impact sound is avoided, the protective door is more stable to use, and meanwhile, the opening and closing speed of the protective door has a larger lifting space, and the processing efficiency of a horizontal processing center is improved. In addition, except its own gravity when the upward sliding door is closed, the driving mechanism provides additional driving force, and the phenomenon of jamming, jamming or crashing can not occur, so that the safety is high.
Preferably, the driving mechanism comprises a motor, a rotating shaft, a driving sprocket, a driven sprocket and a transmission mechanism, wherein the motor is arranged on one side of the top of the door frame, the driving sprocket is connected with the output end of the motor, the driven sprocket is connected with the driving sprocket through a transmission chain, the driven sprocket is arranged on the rotating shaft, the rotating shaft is horizontally arranged on the top of the door frame, the transmission mechanism is arranged on one side of the door frame or symmetrically arranged on two sides of the door frame, the transmission mechanism arranged on the same side of the door frame comprises a first transmission unit and a second transmission unit, the first transmission unit and the second transmission unit are respectively connected with the rotating shaft, the upward-moving door is fixed on the first transmission unit, and the downward-moving door is fixed on the second transmission unit. The transmission mechanism can be arranged on one side of the door frame or symmetrically arranged on two sides of the door frame, and can meet the operation requirement of the protective door. When the transmission mechanisms are symmetrically arranged on the two sides of the door frame, the upward-moving door and the downward-moving door can be ensured to bear force in the vertical direction. The protection door has low requirements on the motor, and can adopt a vertical motor or a horizontal motor.
Preferably, the first transmission unit comprises a first chain, a first upper chain wheel and a first lower chain wheel, the second transmission unit comprises a second chain, a second upper chain wheel and a second lower chain wheel, the first upper chain wheel and the second upper chain wheel are respectively arranged on the rotating shaft through flat keys, the first lower chain wheel and the second lower chain wheel are respectively arranged on the door frame up and down, the first upper chain wheel and the first lower chain wheel are connected through the first chain, the first chain is arranged on the up-moving door, the second upper chain wheel and the second lower chain wheel are connected through the second chain, and the second chain is arranged on the down-moving door. The first chain and the second chain are respectively and directly connected with the upward sliding door and the downward sliding door, so that the installation is simple and convenient, and the problems of unsmooth movement, high noise and the like of the protective door caused by the long groove opening can be avoided. During operation, the motor drives the driving sprocket to rotate, the driving sprocket drives the driven sprocket to rotate, the driven sprocket drives the first upper sprocket and the second upper sprocket to rotate, the first chain and the second chain are driven to move up and down, and up-down synchronous linkage of the up-moving door and the down-moving door is realized.
Preferably, the stroke ratio of the lower sliding door to the upper sliding door is 2:1, and the pitch circle diameter of the first lower chain wheel is 2 times that of the first upper chain wheel. The stroke ratio of the downward sliding door to the upward sliding door is limited, and the occupied space of the protective door can be effectively reduced on the premise of ensuring the opening degree of the protective door. The diameter of the reference circle of the first lower chain wheel is 2 times of that of the first upper chain wheel, so that the stroke ratio of the lower sliding door to the upper sliding door can be ensured to meet the requirement.
Preferably, the first chain is provided with a plurality of first chain adjusting mechanisms for adjusting the tightness of the first chain, and the second chain is provided with a plurality of second chain adjusting mechanisms for adjusting the tightness of the second chain. Through a plurality of first chain adjustment mechanism and a plurality of second chain adjustment mechanism, can ensure the whole installation accuracy of guard gate, ensure result of use.
Preferably, each first chain adjusting mechanism comprises a first right-handed screw, a first adjusting screw sleeve and a first left-handed screw which are arranged up and down, wherein the upper end of the first right-handed screw is fixed on the first chain, the lower end of the first right-handed screw is in threaded connection with the first adjusting screw sleeve, a first right-handed nut is in threaded connection with the first right-handed screw, the upper end of the first left-handed screw is in threaded connection with the first adjusting screw sleeve, the lower end of the first left-handed screw is fixed on the first chain, and a first left-handed nut is in threaded connection with the first left-handed screw; every second chain adjustment mechanism include the second right-handed screw, second adjusting screw sleeve and the second left-handed screw that set up from top to bottom, the upper end of second right-handed screw fix on the second chain, the lower extreme of second right-handed screw with second adjusting screw sleeve threaded connection, second right-handed screw on threaded connection have the second right-handed nut, the upper end of second left-handed screw with second adjusting screw sleeve threaded connection, the lower extreme of second left-handed screw fix on the second chain, second left-handed screw on threaded connection have the second left-handed nut. When the tightness (namely the length) of the first chain is required to be adjusted, the first right-handed nut and the first left-handed nut are unscrewed, the first adjusting screw sleeve is rotated, the first right-handed screw and the first left-handed screw move in opposite directions or back to back until the first chain is adjusted to a proper length, and then the first right-handed nut and the first left-handed nut are screwed, so that the tightness adjustment of the first chain is completed. And the second adjusting screw sleeve can be rotated to adjust the tightness of the second chain.
Preferably, the two sides of the door frame are respectively provided with a guide groove plate, the two sides of the upward-moving door are respectively provided with two first rollers, the two sides of the downward-moving door are respectively provided with two second rollers, and the wheel surfaces of the two first rollers and the two second rollers are respectively leaning against and arranged on the guide groove plates. The design of first gyro wheel and second gyro wheel can further improve the stationarity and the reliability of upward sliding door and downward sliding door operation, can make upward sliding door and downward sliding door's removal more smooth and easy simultaneously, and the noise is littleer.
Preferably, a first deep groove ball bearing is coaxially arranged on the inner side of each first roller, the first deep groove ball bearing is arranged on a first screw, and the first screw is fixedly arranged on the upward-moving door through a first nut; and a second deep groove ball bearing is coaxially arranged on the inner side of each second roller, the second deep groove ball bearing is arranged on a second screw, and the second screw is fixedly arranged on the downward sliding door through a second nut. The first roller and the second roller are simple in structure, convenient to assemble and disassemble and low in cost.
Preferably, a first radial baffle ring extending inwards is arranged on one side, close to the upward moving door, of each first roller, the outer ring of the first deep groove ball bearing is pressed by the first radial baffle ring, the inner ring of the first deep groove ball bearing is pressed by the screw head of the first screw, and a gap between each first roller and the upward moving door is 0.5-1.0 mm; one side of each second roller, which is close to the downward-moving door, is provided with a second radial baffle ring which extends inwards, the outer ring of the second deep groove ball bearing is pressed by the second radial baffle ring, the inner ring of the second deep groove ball bearing is pressed by the screw head of the second screw, and the gap between each second roller and the downward-moving door is 0.5-1.0 mm. The mounting structure can play a good radial and axial limiting role on the first roller and the second roller, avoid the first roller and the second roller from striking the sliding door, ensure that the first roller, the second roller, the first deep groove ball bearing and the second deep groove ball bearing do not fall off, and ensure safety.
Preferably, an upper limit switch and a lower limit switch are arranged on one side of the door frame, a limit block matched with the upper limit switch and the lower limit switch is arranged on the lower side of the upper sliding door, the upper limit switch is matched with the maximum door opening position of the upper sliding door, and the lower limit switch is matched with the door closing position of the upper sliding door. The cooperation of stopper and last limit switch and lower limit switch can further improve the security that the guard gate opened and shut. In the working process, when the upward sliding door rises to reach the maximum door opening height, the limiting block is contacted with the upper limit switch, and the motor is braked and does not rotate; when the upward sliding door descends to reach the door closing limit, the limiting block is contacted with the lower limit switch, and the motor is braked to be not rotated.
Compared with the prior art, the invention has the advantages that: according to the double-leaf linkage protective door for the horizontal machining center, the upper sliding door and the lower sliding door are arranged on the door frame in a front-back staggered mode, and the upper sliding door and the lower sliding door are synchronously driven and linked by the same driving mechanism respectively, so that the upper sliding door and the lower sliding door can be synchronously opened and closed, the impact of the upper sliding door and the lower sliding door is avoided, the impact sound is avoided, the protective door is more stable to use, and meanwhile, the opening and closing speed of the protective door has a larger lifting space, and the machining efficiency of the horizontal machining center is improved. In addition, except its own gravity when the upward sliding door is closed, the driving mechanism provides additional driving force, and the phenomenon of jamming, jamming or crashing can not occur, so that the safety is high.
Drawings
FIG. 1 is a front view of a dual-leaf linked protective door for a horizontal machining center of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view at B in FIG. 2;
FIG. 4 is a schematic view of a single first chain adjustment mechanism in a dual-leaf linkage protective door for a horizontal machining center of the present invention;
FIG. 5 is a top view of a dual-leaf linkage protective door for a horizontal machining center of the present invention;
FIG. 6 is an enlarged view of FIG. 5 at C;
FIG. 7 is an enlarged view of FIG. 5 at D;
fig. 8 is an assembly schematic view of the first roller of fig. 7.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
The horizontal machining center of embodiment 1 is with two linkage guard gates, as shown in the figure, including door frame 3, upward move door 1 and move down door 2 stagger and upper and lower movable mounting is on door frame 3, is provided with actuating mechanism on the door frame 3, and actuating mechanism's output links to each other with upward move door 1 and move down door 2 respectively, and actuating mechanism is used for driving upward move door 1 and move down door 2 synchronous opening and shutting.
In embodiment 1, the driving mechanism comprises a motor 41, a rotating shaft 42, a driving chain wheel 43, a driven chain wheel 44 and a transmission mechanism, wherein the motor 41 is arranged on one side of the top of the door frame 3, the driving chain wheel 43 is connected with the output end of the motor 41, the driven chain wheel 44 is connected with the driving chain wheel 43 through a transmission chain 45, the driven chain wheel 44 is arranged on the rotating shaft 42, the rotating shaft 42 is horizontally arranged on the top of the door frame 3, the transmission mechanism is arranged on one side of the door frame 3, the transmission mechanism comprises a first transmission unit and a second transmission unit, the first transmission unit and the second transmission unit are respectively connected with the rotating shaft 42, the upward-moving door 1 is fixed on the first transmission unit, and the downward-moving door 2 is fixed on the second transmission unit; the first transmission unit comprises a first chain 51, a first upper chain wheel 52 and a first lower chain wheel 53, the second transmission unit comprises a second chain 61, a second upper chain wheel 62 and a second lower chain wheel 63, the first upper chain wheel 52 and the second upper chain wheel 62 are respectively arranged on the rotating shaft 42 through flat keys, the first lower chain wheel 53 and the second lower chain wheel 63 are respectively arranged on the door frame 3 up and down, the first upper chain wheel 52 and the first lower chain wheel 53 are connected through the first chain 51, the first chain 51 is arranged on the upper sliding door 1, the second upper chain wheel 62 and the second lower chain wheel 63 are connected through the second chain 61, and the second chain 61 is arranged on the lower sliding door 2.
In embodiment 1, the first chain 51 is provided with two first chain adjusting mechanisms 7 for adjusting the tightness of the first chain 51, and the second chain 61 is provided with two second chain adjusting mechanisms 8 for adjusting the tightness of the second chain 61. Each first chain adjusting mechanism comprises a first right-handed screw 71, a first adjusting screw sleeve 72 and a first left-handed screw 73 which are arranged up and down, wherein the upper end of the first right-handed screw 71 is fixed on the first chain 51, the lower end of the first right-handed screw 71 is in threaded connection with the first adjusting screw sleeve 72, the first right-handed screw 71 is in threaded connection with a first right-handed nut 74, the upper end of the first left-handed screw 73 is in threaded connection with the first adjusting screw sleeve 72, the lower end of the first left-handed screw 73 is fixed on the first chain 51, and the first left-handed screw 73 is in threaded connection with a first left-handed nut 75; referring to fig. 4, each second chain adjusting mechanism 8 includes a second right-handed screw, a second adjusting screw sleeve and a second left-handed screw which are arranged up and down, the upper end of the second right-handed screw is fixed on the second chain 61, the lower end of the second right-handed screw is in threaded connection with the second adjusting screw sleeve, the second right-handed screw is in threaded connection with a second right-handed nut, the upper end of the second left-handed screw is in threaded connection with the second adjusting screw sleeve, the lower end of the second left-handed screw is fixed on the second chain 61, and the second left-handed screw is in threaded connection with a second left-handed nut.
In embodiment 1, the stroke ratio of the lower sliding door 2 to the upper sliding door 1 is 2:1, and the pitch diameter of the first lower sprocket 53 is 2 times the pitch diameter of the first upper sprocket 52.
The difference between the horizontal machining center of embodiment 2 and embodiment 1 is that in embodiment 2, an upper limit switch 91 and a lower limit switch 92 are installed on one side of a door frame 3, a stopper (not shown in the figure) matched with the upper limit switch 91 and the lower limit switch 92 is installed on the lower side of the upper limit door 1, the upper limit switch 91 is matched with the maximum door opening position of the upper limit door 1, and the lower limit switch 92 is matched with the door closing position of the upper limit door 1.
The difference between the horizontal machining center of embodiment 3 and embodiment 2 is that in embodiment 3, guide groove plates 31 are respectively installed on two sides of the door frame, two first rollers 11 are respectively installed on two sides of the up-moving door 1, two second rollers 21 are respectively installed on two sides of the down-moving door 2, and the wheel surfaces of the two first rollers 11 and the two second rollers 21 are respectively abutted against the guide groove plates 31.
In embodiment 3, a first deep groove ball bearing 12 is coaxially installed on the inner side of each first roller 11, the first deep groove ball bearing 12 is installed on a first screw 13, and the first screw 13 is fixedly installed on the upper sliding door 1 by a first nut 14; a second deep groove ball bearing (not shown in the drawings) is coaxially installed at the inner side of each second roller 21, and is installed on a second screw fixedly installed on the lower sliding door 2 by a second nut.
In embodiment 3, a first radial baffle ring 15 extending inwards is arranged on one side of each first roller 11 close to the upward sliding door 1, the outer ring of the first deep groove ball bearing 12 is pressed by the first radial baffle ring 15, the inner ring of the first deep groove ball bearing 12 is pressed by the screw head of the first screw 13, and the gap between each first roller 11 and the upward sliding door 1 is 0.5mm; referring to fig. 8, a second radial baffle ring extending inwards is arranged on one side, close to the downward-moving door 2, of each second roller 21, the outer ring of the second deep groove ball bearing is pressed by the second radial baffle ring, the inner ring of the second deep groove ball bearing is pressed by the screw heads of the second screws, and a gap between each second roller 21 and the downward-moving door 2 is 0.5mm.
When the protective door works, the motor 41 drives the driving chain wheel 43 to rotate, the driving chain wheel 43 drives the driven chain wheel 44 to rotate, the driven chain wheel 44 drives the first upper chain wheel 52 and the second upper chain wheel 62 to rotate, and the first chain 51 and the second chain 61 are driven to move up and down, so that the up-and-down synchronous linkage of the up-moving door 1 and the down-moving door 2 is realized, the up-and-down synchronous opening and closing of the up-moving door 1 and the down-moving door 2 is realized, and the collision of the up-moving door 1 and the down-moving door 2 is avoided.
Claims (4)
1. The utility model provides a horizontal machining center is with two linkage guard gates, includes door frame, upward moves door and moves down a door, its characterized in that: the upper sliding door and the lower sliding door are staggered from front to back and are vertically movably arranged on the door frame, a driving mechanism is arranged on the door frame, the output end of the driving mechanism is respectively connected with the upper sliding door and the lower sliding door, and the driving mechanism is used for driving the upper sliding door and the lower sliding door to synchronously open and close;
the driving mechanism comprises a motor, a rotating shaft, a driving sprocket, a driven sprocket and a transmission mechanism, wherein the motor is arranged on one side of the top of the door frame, the driving sprocket is connected with the output end of the motor, the driven sprocket is connected with the driving sprocket through a transmission chain, the driven sprocket is arranged on the rotating shaft, the rotating shaft is horizontally arranged on the top of the door frame, the transmission mechanism is arranged on one side of the door frame or symmetrically arranged on two sides of the door frame, the transmission mechanism arranged on the same side of the door frame comprises a first transmission unit and a second transmission unit, the first transmission unit and the second transmission unit are respectively connected with the rotating shaft, the upward-moving door is fixed on the first transmission unit, and the downward-moving door is fixed on the second transmission unit;
The first transmission unit comprises a first chain, a first upper chain wheel and a first lower chain wheel, the second transmission unit comprises a second chain, a second upper chain wheel and a second lower chain wheel, the first upper chain wheel and the second upper chain wheel are respectively arranged on the rotating shaft through flat keys, the first lower chain wheel and the second lower chain wheel are respectively arranged on the door frame up and down, the first upper chain wheel and the first lower chain wheel are connected through the first chain, the first chain is arranged on the upper sliding door, the second upper chain wheel and the second lower chain wheel are connected through the second chain, and the second chain is arranged on the lower sliding door;
The stroke ratio of the lower sliding door to the upper sliding door is 2:1, and the pitch circle diameter of the first lower chain wheel is 2 times of that of the first upper chain wheel;
The two sides of the door frame are respectively provided with a guide groove plate, two first idler wheels are respectively arranged at the two sides of the upward sliding door, two second idler wheels are respectively arranged at the two sides of the downward sliding door, and the wheel surfaces of the two first idler wheels and the two second idler wheels are respectively arranged on the guide groove plates in a leaning way;
the inner side of each first roller is coaxially provided with a first deep groove ball bearing, the first deep groove ball bearings are arranged on first screws, and the first screws are fixedly arranged on the upward-moving door through first nuts; the inner side of each second roller is coaxially provided with a second deep groove ball bearing, the second deep groove ball bearings are arranged on second screws, and the second screws are fixedly arranged on the downward-moving door through second nuts;
The side, close to the upward-moving door, of each first roller is provided with a first radial baffle ring which extends inwards, the outer ring of the first deep groove ball bearing is pressed by the first radial baffle ring, the inner ring of the first deep groove ball bearing is pressed by the screw head of the first screw, and the gap between each first roller and the upward-moving door is 0.5-1.0 mm; one side of each second roller, which is close to the downward-moving door, is provided with a second radial baffle ring which extends inwards, the outer ring of the second deep groove ball bearing is pressed by the second radial baffle ring, the inner ring of the second deep groove ball bearing is pressed by the screw head of the second screw, and the gap between each second roller and the downward-moving door is 0.5-1.0 mm.
2. The dual-leaf linkage guard door for a horizontal machining center according to claim 1, wherein: the first chain is provided with a plurality of first chain adjusting mechanisms for adjusting the tightness of the first chain, and the second chain is provided with a plurality of second chain adjusting mechanisms for adjusting the tightness of the second chain.
3. The dual-leaf linkage guard door for a horizontal machining center according to claim 2, wherein: each first chain adjusting mechanism comprises a first right-handed screw, a first adjusting screw sleeve and a first left-handed screw which are arranged up and down, the upper end of the first right-handed screw is fixed on the first chain, the lower end of the first right-handed screw is in threaded connection with the first adjusting screw sleeve, a first right-handed nut is in threaded connection with the first right-handed screw, the upper end of the first left-handed screw is in threaded connection with the first adjusting screw sleeve, the lower end of the first left-handed screw is fixed on the first chain, and a first left-handed nut is in threaded connection with the first left-handed screw; every second chain adjustment mechanism include the second right-handed screw, second adjusting screw sleeve and the second left-handed screw that set up from top to bottom, the upper end of second right-handed screw fix on the second chain, the lower extreme of second right-handed screw with second adjusting screw sleeve threaded connection, second right-handed screw on threaded connection have the second right-handed nut, the upper end of second left-handed screw with second adjusting screw sleeve threaded connection, the lower extreme of second left-handed screw fix on the second chain, second left-handed screw on threaded connection have the second left-handed nut.
4. The dual-leaf linkage guard door for a horizontal machining center according to claim 1, wherein: an upper limit switch and a lower limit switch which are arranged up and down are arranged on one side of the door frame, a limiting block which is matched with the upper limit switch and the lower limit switch is arranged on the lower side of the upper limit switch, the upper limit switch is matched with the maximum door opening position of the upper limit switch, and the lower limit switch is matched with the door closing position of the upper limit switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910051782.4A CN109732395B (en) | 2019-01-21 | 2019-01-21 | Horizontal machining center is with two linkage guard gates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910051782.4A CN109732395B (en) | 2019-01-21 | 2019-01-21 | Horizontal machining center is with two linkage guard gates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109732395A CN109732395A (en) | 2019-05-10 |
| CN109732395B true CN109732395B (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910051782.4A Active CN109732395B (en) | 2019-01-21 | 2019-01-21 | Horizontal machining center is with two linkage guard gates |
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| CN (1) | CN109732395B (en) |
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| CN108798153A (en) * | 2018-07-12 | 2018-11-13 | 合肥驰峰机械有限公司 | A kind of stereo garage chain take-up |
| CN209774163U (en) * | 2019-01-21 | 2019-12-13 | 宁波海天精工股份有限公司 | Double-leaf linkage protective door for horizontal machining center |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1344528A (en) * | 1970-01-22 | 1974-01-23 | Doering E | Electric motor door transmissions |
| EP0672813A1 (en) * | 1994-03-17 | 1995-09-20 | Willibald Raingruber | Lifting gate |
| CN102441815A (en) * | 2011-10-09 | 2012-05-09 | 上海三一精机有限公司 | Protective door device and machining center |
| CN103470692A (en) * | 2012-06-06 | 2013-12-25 | 天津市宝洪源机械制造有限公司 | Tensioning device capable of rapidly adjusting tightness of chain |
| CN205243446U (en) * | 2015-11-04 | 2016-05-18 | 涿州市海德机械设备有限公司 | Chain lift automatic compensation mechanism |
| CN106869780A (en) * | 2015-12-11 | 2017-06-20 | 湖北首开机械有限公司 | A kind of anchoring drilling machine power head assembly for pulling chain elasticity adjustable |
| CN206536286U (en) * | 2017-03-01 | 2017-10-03 | 宁波海天精工股份有限公司 | A kind of machine tool protection door |
| CN206925636U (en) * | 2017-04-01 | 2018-01-26 | 宁波海天精工股份有限公司 | It is a kind of to move up and down Double-protection door applied to lathe |
| CN108798153A (en) * | 2018-07-12 | 2018-11-13 | 合肥驰峰机械有限公司 | A kind of stereo garage chain take-up |
| CN209774163U (en) * | 2019-01-21 | 2019-12-13 | 宁波海天精工股份有限公司 | Double-leaf linkage protective door for horizontal machining center |
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| CN109732395A (en) | 2019-05-10 |
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