Octahedral contained spindle box structure for all-gear variable-speed transmission
阅读说明：本技术 一种八面包容且全齿轮变速传动的主轴箱结构 (Octahedral contained spindle box structure for all-gear variable-speed transmission ) 是由 张卫卫 郑杰 王海威 张婷 侯伟 于 2019-12-06 设计创作，主要内容包括：本发明公开了一种八面包容且全齿轮变速传动的主轴箱结构,包括龙门架,所述龙门架上设置有线轨,所述线轨上滑动连接有主轴箱(1),所述主轴箱(1)与线轨接触的两个侧面分别设置有第一凹槽(2)和第二凹槽(3),所述主轴箱(1)内还设置有改变扭矩的变速机构,所述变速机构包括变速杆(4),所述变速杆(4)上设置有不同尺寸的第一齿轮(5)和第二齿轮(6),所述第一齿轮(5)尺寸大于所述第二齿轮尺寸(6),所述第一齿轮(5)和所述第二齿轮(6)比例为5.14:1,所述第一凹槽(2)和第二凹槽(3)尺寸相同,所述变速杆(4)连接着气缸,所述主轴箱(1)内设置有主轴联轴器(7)。(The invention discloses an octahedral accommodation and full-gear variable-speed transmission spindle box structure which comprises a portal frame, wherein a linear rail is arranged on the portal frame, a spindle box (1) is connected onto the linear rail in a sliding manner, two side surfaces of the spindle box (1) contacting with the linear rail are respectively provided with a first groove (2) and a second groove (3), a speed change mechanism for changing torque is further arranged in the spindle box (1), the speed change mechanism comprises a gear shift lever (4), the gear shift lever (4) is provided with a first gear (5) and a second gear (6) which are different in size, the size of the first gear (5) is larger than that of the second gear (6), the proportion of the first gear (5) to the second gear (6) is 5.14:1, the sizes of the first groove (2) and the second groove (3) are the same, and the gear shift lever (4) is connected with a cylinder, and a main shaft coupler (7) is arranged in the main shaft box (1).)
1. The utility model provides an octahedral contains and full gear variable transmission's headstock structure, includes the portal frame, be provided with the line rail on the portal frame, sliding connection has headstock (1) on the line rail, its characterized in that, headstock (1) are provided with first recess (2) and second recess (3) respectively with two sides of line rail contact, still be provided with the speed change mechanism who changes the moment of torsion in headstock (1).
2. An octahedral accommodation and all-gear transmission headstock structure according to claim 1, characterized in that the gear change mechanism comprises a gear shift lever (4), on which gear shift lever (4) a first gear (5) and a second gear (6) of different sizes are arranged.
3. An octahedral accommodation and all-gear variable transmission headstock structure according to claim 2, characterized in that the first gear (5) size is larger than the second gear size (6).
4. An octahedral accommodation and all-gear variable transmission headstock structure according to claim 4, characterized in that the ratio of the first gear (5) and the second gear (6) is 5.14: 1.
5. An octahedral accommodation and all-gear variable transmission headstock structure according to claim 1, wherein the first recess (2) and the second recess (3) are the same size.
6. An octahedral accommodation and full gear transmission headstock structure according to claim 2, wherein the gear shift lever (4) is connected to a cylinder.
Technical Field
The invention relates to a gantry high-speed machine, in particular to an octahedral contained spindle box structure with full-gear variable-speed transmission.
Background
With the development of the technology, the quality and the efficiency of metal cutting are greatly improved after the metal cutting machine tool in China is introduced into a numerical control technology, and the numerical control metal cutting machine tool almost completely replaces a common metal cutting machine tool. With the rapid development of computer technology, the numerical control processing technology is also continuously advancing.
The gantry high-speed machine is a high-efficiency automatic machine tool which consists of mechanical equipment and a numerical control system and is suitable for processing and rechecking parts. The machining device has stronger comprehensive machining capacity, can finish more machining contents after the workpiece is clamped once, has higher machining precision, can finish batch workpieces with medium machining difficulty, has efficiency which is multiple times that of common equipment, can finish machining which cannot be finished by a plurality of common equipment, is more suitable for single-piece machining with complex shapes and high precision requirements or various production in medium and small batches, and is widely applied to the manufacturing industries of aerospace, automobiles, molds and the like.
The main spindle box is an important part of the gantry high-speed machine and is used for a working main spindle of the gantry high-speed machine, a transmission part of the working main spindle and a corresponding additional mechanism. When a spindle box in the prior art slides on a portal frame, the contact area of the spindle box and a linear rail is large, friction is generated, the precision of a workpiece cannot reach the standard due to long-time large-area friction, and the rotating speed of a spindle cannot be changed.
Disclosure of Invention
The invention provides an octahedral contained spindle box structure with full-gear variable transmission, which improves the stability and the service life of a gantry high-speed machine by changing the contact area of the spindle box and a linear rail, realizes the rotating speed of a spindle by changing the torque of gear transmission in the spindle box, and realizes two-gear variable speed.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an octahedral contains and full gear variable transmission's headstock structure, includes the portal frame, be provided with the line rail on the portal frame, sliding connection has the headstock on the line rail, two sides that headstock and line rail contact are provided with first recess and second recess respectively, still be provided with the speed change mechanism who changes the moment of torsion in the headstock.
Further, the transmission mechanism includes a shift lever provided with first and second gears of different sizes. The gear on the main shaft is driven to transmit through two gears with different sizes, so that the torque of the main shaft is changed, and the speed is increased or decreased.
Further, the first gear size is larger than the second gear size.
Further, the ratio of the first gear to the second gear is 5.14: 1.
further, the first groove and the second groove are the same in size. The headstock can improve stability when moving.
Further, the gear lever is connected with the air cylinder.
The spindle box is further provided with a spindle coupler. The shaft coupling has the functions of buffering, damping and improving the dynamic performance of a shaft system.
The invention has the technical advantages and effects that: because the main spindle box is in large-area contact with the linear rail, the main spindle box can be abraded after long-term work, the resistance is high, and the working efficiency and the precision of a workpiece are affected. Two side faces of the spindle box, which are in contact with the linear rail, are respectively provided with a first groove and a second groove, so that the spindle box is in contact with 6 faces of the linear rail, and is divided into 8 faces to be in contact with the linear rail, therefore, the contact area of the spindle box and the linear rail is reduced, the resistance is reduced, and the working efficiency is improved.
Secondly, the first gear and the second gear on the gear shift lever are meshed with the gear on the main shaft, and the first gear and the second gear are different in size, so that the small gear drives the large gear to rotate, the torque is increased, and the speed is reduced; when the large gear drives the small gear to rotate, the torque is reduced, the speed is increased, and the function of two-gear speed change is realized.
Drawings
Fig. 1 is a schematic view of a spindle box structure of eight-side contained and all-gear transmission.
FIG. 2 is a cross-sectional view of a spindle box structure with eight-side contained and all-gear transmission.
FIG. 3 is a schematic diagram of the first and second grooves of the main spindle box structure for eight-side contained and all-gear transmission.
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 to 3, the main spindle box structure with eight-side accommodation and full-gear variable transmission comprises a portal frame, wherein a linear rail is arranged on the portal frame, the linear rail is connected with a main spindle box 1 in a sliding manner, and the main spindle box is an important part of a gantry high-speed machine and is used for a working main shaft of the gantry high-speed machine, a transmission part of the gantry high-speed machine and a corresponding additional mechanism. The two side surfaces of the headstock 1 contacting the linear rail are respectively provided with a first groove 2 and a
In order to realize the variable-speed rotation of the spindle, preferably, a
Of course, in order to realize the change of the torque, the
The main shaft is also provided with a
Because the main spindle box is in large-area contact with the linear rail, the main spindle box can be abraded after long-term work, the resistance is high, and the working efficiency and the precision of a workpiece are affected. The two side surfaces of the spindle box, which are in contact with the linear rail, are respectively provided with the first groove and the second groove, so that the spindle box is in contact with 6 surfaces of the linear rail and is divided into 8 surfaces (a first contact surface, a second contact surface, a third contact surface, a fourth contact surface, a fifth contact surface, a sixth contact surface, a seventh contact surface and an eighth contact surface) to be in contact with the linear rail, and therefore the contact area between the spindle box and the linear rail is reduced, the resistance is reduced, the abrasion degree is reduced, and the working efficiency is improved.
Secondly, the first gear and the second gear on the gear shift lever are meshed with the gear on the main shaft, and the first gear and the second gear are different in size, so that the small gear drives the large gear to rotate, the torque is increased, and the speed is reduced; when the large gear drives the small gear to rotate, the torque is reduced, the speed is increased, and the function of two-gear speed change is realized.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
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