CN211916093U - Portal frame of numerical control gantry machining center - Google Patents
Portal frame of numerical control gantry machining center Download PDFInfo
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- CN211916093U CN211916093U CN201922229476.3U CN201922229476U CN211916093U CN 211916093 U CN211916093 U CN 211916093U CN 201922229476 U CN201922229476 U CN 201922229476U CN 211916093 U CN211916093 U CN 211916093U
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- fixedly connected
- cross beam
- driving motor
- worm
- front side
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- 238000003754 machining Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of gantry machining centers, in particular to a gantry frame of a numerical control gantry machining center, which comprises two upright posts and a cross beam, wherein the upper part of the front side surface of each upright post is fixedly connected with a rack, two ends of the rear side surface of the cross beam are connected to the front side surfaces of the two upright posts in a sliding manner, gears are arranged at the left end and the right end of the cross beam and are respectively meshed with the two racks, the right end of the cross beam is fixedly connected with a supporting plate, the supporting plate is fixedly connected with a driving motor and a supporting block, the output end of the driving motor is fixedly connected with a worm, the outer side surface of the gear at the right end of the cross beam is fixedly connected with a worm wheel, the worm with the worm wheel meshing, the utility model discloses simple structure, can make the crossbeam reciprocate and can also make the crossbeam remain balanced throughout in the removal.
Description
Technical Field
The utility model relates to a numerical control longmen machining center technical field especially relates to a numerical control longmen machining center's portal frame.
Background
The numerical control gantry machining center is usually used for machining complex, precise and small-batch products, the requirement on the machining precision of the products is high, the precision of the numerical control gantry machining center is also required to be high, a gantry in the numerical control gantry machining center is a middle flow grinding column in a moving system, core components such as a main shaft and the like are arranged on the gantry, and a beam of the conventional fixed beam type gantry is usually fixed on the two columns and is inconvenient to repair or inspect if the beam needs to be repaired or inspected; the cross beam of part fixed beam type portal frame can move up and down, but the moving mode is to make the cross beam realize ascending and descending through two lead screws connected to the two ends of the cross beam respectively, because the precision requirement of the portal frame is high, the adoption of the mode of respectively driving the lead screws can possibly cause the imbalance of the cross beam, thereby influencing the processing precision of the portal frame processing center, and the complexity of the whole structure of the portal frame can be increased by the mode.
SUMMERY OF THE UTILITY MODEL
For solving the problem mentioned in the background art, the utility model aims to provide a simple structure, can make the crossbeam reciprocate and can also make the crossbeam remain balanced numerical control longmen machining center's portal frame throughout in removing.
In order to realize the above object, the technical scheme of the utility model is that:
a portal frame of a numerical control gantry machining center comprises two upright posts and a cross beam, wherein the two upright posts are arranged in parallel and are separated by a certain distance, and the portal frame is characterized in that the upper part of the front side surface of each upright post is fixedly connected with a rack, the two ends of the rear side surface of the cross beam are connected to the front side surfaces of the two upright posts in a sliding manner, through holes are communicated with the left end and the right end of the cross beam, a rotating shaft is connected to a bearing in each through hole, gears are fixedly connected to the two ends of the rotating shaft and are respectively meshed with the two racks, a supporting plate is fixedly connected to the right end of the cross beam, a driving motor and a supporting block are fixedly connected to the supporting plate, a worm is fixedly connected to the output end of the driving motor, a bearing at the tail end of the worm is connected to the, the worm is meshed with the worm wheel, and the unfolding spiral angle of the worm is smaller than the contact friction angle of the worm and the worm wheel.
Furthermore, the top surface of two stand fixedly connected with limiting plate, two the equal fixedly connected with stopper of lower part of the leading flank of stand.
Furthermore, the front side surfaces of the two stand columns are located beside the racks, the cross sections of the rails are T-shaped, sliding grooves are formed in the two ends of the rear side surface of the cross beam, the cross sections of the sliding grooves correspond to the cross sections of the rails, and the two sliding grooves are respectively matched with the two rails.
Furthermore, the upper end and the lower end of the front side face of the cross beam are fixedly provided with two slide rails, the left end and the right end of the front side face of the cross beam are fixedly connected with two fixing plates, a lead screw is connected between the two fixing plates through a bearing, two ends of the lead screw penetrate through the two fixing plates, a driving motor is fixedly connected to the outer side face of the fixing plate at the left end of the front side face of the cross beam, and the output end of the driving motor is fixedly connected with the left end of the lead screw.
Furthermore, be located the right side the outside of stand is provided with the control panel, the control panel pass through link fixed connection be in on the stand, driving motor with control panel electric connection, driving motor memory control panel all with external power source electric connection.
The utility model has the advantages that: the utility model has the advantages that the racks are arranged on the two upright posts, the gears are arranged at the two ends of the cross beam, the gears are driven to rotate, the two gears move synchronously, and the cross beam can not incline during moving; the unfolding spiral angle of the worm is smaller than the contact friction angle of the worm and the worm wheel, and the beam can be fixed without other limiting devices, so that the structure is simple.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the center pillar and the control panel of the present invention;
fig. 3 is a schematic mechanism diagram of the middle cross beam and the driving motor of the present invention;
fig. 4 is a schematic view of the combination of the middle rotating shaft, the gear, the worm wheel, the worm, the driving motor and the rack according to the present invention;
fig. 5 is a schematic connection diagram of the middle driving motor, the control panel and the external power source of the present invention.
Reference numerals: 1. the device comprises an upright post, 11, a rack, 12, a limiting plate, 13, a limiting block, 14, a track, 2, a beam, 21, a through hole, 22, a supporting plate, 23, a sliding groove, 24, a sliding rail, 25, a fixing plate, 26, a screw rod, 27, a driving motor, 3, a rotating shaft, 31, a gear, 32, a worm wheel, 4, a driving motor, 41, a supporting block, 42, a worm, 5, a control plate, 51, a connecting frame, 6, an external power supply, 7 and a sliding saddle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
As shown in fig. 1-5, a portal frame of a numerical control gantry machining center comprises two upright posts 1 and a cross beam 2, the two upright posts 1 are arranged in parallel and separated by a distance, the upper part of the front side surface of each upright post 1 is fixedly connected with a rack 11, each rack 11 is arranged at the outer side of the front side surface of the upright post 1, the width of the rack 11 is smaller than that of the front side surface of the upright post 1, the cross beam 2 is in a rectangular shape, two ends of the rear side surface of the cross beam 2 are slidably connected to the front side surfaces of the two upright posts 1, through holes 21 are penetrated at the left and right ends of the cross beam 2, a rotating shaft 3 is connected in a bearing manner in the through holes 21, two ends of the rotating shaft 3 are fixedly connected with gears 31, the two gears 31 are respectively meshed with the two racks 11, a support plate 22 is fixedly connected to the right end of the cross beam, the end bearing of the worm 42 is connected to the support block 41, the worm wheel 32 is fixedly connected to the outer side surface of the gear 31 provided at the right end of the beam 2, and the worm 42 is engaged with the worm wheel 32.
In actual use, the driving motor 4 is started, the worm 42 rotates to drive the worm wheel 32 to rotate, the worm wheel 32 drives the gears 31 at the left end and the right end of the cross beam 2 to rotate, the cross beam 2 can move up and down at the moment, the expansion spiral angle of the worm 42 is smaller than the contact friction angle between the worm 42 and the worm wheel 32, the worm wheel 32 has a self-locking function, other limiting devices are not needed, the position of the cross beam 2 can be fixed, and the structure is simple.
In this embodiment, the top surface fixedly connected with limiting plate 12 of two stands 1, the equal fixedly connected with stopper 13 in lower part of the leading flank of two stands 1 set up limiting plate 12 and stopper 13 on stand 1, avoid crossbeam 2 to break away from stand 1.
In this embodiment, the rails 14 are disposed beside the racks 11 on the front side surfaces of the two columns 1, the rails 14 are disposed on the inner sides of the front side surfaces of the columns 1, the cross section of each rail 14 is T-shaped, the two ends of the rear side surface of the beam 2 are both provided with sliding grooves 23, the cross section of each sliding groove 23 corresponds to the cross section of each rail 14, the two sliding grooves 23 are respectively matched with the two rails 14, and the T-shaped rails 14 and the sliding grooves 23 are disposed to allow the beam 2 to be more stably connected to the columns 1.
In this embodiment, two slide rails 24 are fixedly arranged at the upper end and the lower end of the front side surface of the cross beam 2, two fixing plates 25 are fixedly connected to the left end and the right end of the front side surface of the cross beam 2, a screw rod 26 is connected between the two fixing plates 25 through a bearing, two ends of the screw rod 26 penetrate through the two fixing plates 25, a driving motor 27 is fixedly connected to the outer side surface of the fixing plate 25 at the left end of the front side surface of the cross beam 2, the output end of the driving motor 27 is fixedly connected with the left end of the screw rod 26, the saddle 7 is slidably connected with the two slide rails 24, the saddle 7 is spirally connected with the screw rod 26, the driving motor 4 is started, so that the saddle 7 can slide back and forth on the cross beam 2, the moving track of.
In this embodiment, the control panel 5 is disposed on the outer side of the right upright post 1, the control panel 5 is fixedly connected to the upright post 1 through the connecting frame 51, the driving motor 27, the driving motor 4 and the control panel 5 are electrically connected to the external power source 6, and a user can control the movement of the cross beam 2 and the saddle 7 by operating the control panel 5.
The utility model has the advantages that the racks 11 are arranged on the two upright posts 1, the gears 31 are arranged at the two ends of the beam 2, the rotation of the gears 31 is realized by driving the worm 42, the two gears 31 move synchronously, and the beam 2 can not deflect during moving; the expansion helical angle of the worm 42 is smaller than the contact friction angle between the worm 42 and the worm wheel 32, and the fixing of the beam 2 can be realized without other limiting devices, and the structure is simple.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. A portal frame of a numerical control gantry machining center comprises two upright posts (1) and a cross beam (2), wherein the two upright posts (1) are arranged in parallel and are separated by a certain distance, and the portal frame is characterized in that the upper portion of the front side surface of each upright post (1) is fixedly connected with a rack (11), two ends of the rear side surface of the cross beam (2) are slidably connected to the front side surfaces of the two upright posts (1), through holes (21) are penetrated at the left end and the right end of the cross beam (2), a rotating shaft (3) is connected to an inner bearing of each through hole (21), gears (31) are fixedly connected to two ends of each rotating shaft (3), the two gears (31) are respectively meshed with the two racks (11), a support plate (22) is fixedly connected to the right end of the cross beam (2), and a driving motor (4) and a support block (41) are fixedly connected to the, the output end of the driving motor (4) is fixedly connected with a worm (42), a tail end bearing of the worm (42) is connected to the supporting block (41), a worm wheel (32) is fixedly connected to the outer side face of the gear (31) at the right end of the cross beam (2), the worm (42) is meshed with the worm wheel (32), and the expansion spiral angle of the worm (42) is smaller than the contact friction angle of the worm (42) and the worm wheel (32).
2. The portal frame of the numerical control gantry machining center according to claim 1, wherein the top surfaces of the two upright posts (1) are fixedly connected with limiting plates (12), and the lower parts of the front side surfaces of the two upright posts (1) are fixedly connected with limiting blocks (13).
3. The portal frame of the numerical control gantry machining center according to claim 1, wherein a rail (14) is arranged beside the rack (11) on the front side surfaces of the two upright posts (1), the cross section of the rail (14) is T-shaped, two ends of the rear side surface of the cross beam (2) are provided with sliding grooves (23), the cross section of each sliding groove (23) corresponds to the cross section of the corresponding rail (14), and the two sliding grooves (23) are respectively matched with the two rails (14).
4. The portal frame of the numerical control gantry machining center according to claim 1, wherein two slide rails (24) are fixedly arranged at the upper end and the lower end of the front side of the cross beam (2), two fixing plates (25) are fixedly connected to the left end and the right end of the front side of the cross beam (2), a screw rod (26) is connected between the two fixing plates (25) in a bearing mode, two ends of the screw rod (26) penetrate through the two fixing plates (25), a driving motor (27) is fixedly connected to the outer side face of the fixing plate (25) at the left end of the front side of the cross beam (2), and the output end of the driving motor (27) is fixedly connected with the left end of the screw rod (26).
5. A gantry frame of a numerical control gantry machining center according to claim 4, wherein a control panel (5) is arranged on the outer side of the right side of the upright post (1), the control panel (5) is fixedly connected to the upright post (1) through a connecting frame (51), the driving motor (27), the driving motor (4) and the control panel (5) are electrically connected, and the driving motor (27), the driving motor (4) and the memory control panel (5) are electrically connected with an external power supply (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922229476.3U CN211916093U (en) | 2019-12-12 | 2019-12-12 | Portal frame of numerical control gantry machining center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922229476.3U CN211916093U (en) | 2019-12-12 | 2019-12-12 | Portal frame of numerical control gantry machining center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211916093U true CN211916093U (en) | 2020-11-13 |
Family
ID=73323662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922229476.3U Expired - Fee Related CN211916093U (en) | 2019-12-12 | 2019-12-12 | Portal frame of numerical control gantry machining center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211916093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112828356A (en) * | 2021-01-27 | 2021-05-25 | 北京航天华世科技股份有限公司 | Planer type milling machine and method for adjusting height of horizontal milling head of planer type milling machine |
-
2019
- 2019-12-12 CN CN201922229476.3U patent/CN211916093U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112828356A (en) * | 2021-01-27 | 2021-05-25 | 北京航天华世科技股份有限公司 | Planer type milling machine and method for adjusting height of horizontal milling head of planer type milling machine |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201113 |