CN209970202U

CN209970202U - Large-scale numerical control gantry lead screw support

Info

Publication number: CN209970202U
Application number: CN201920101026.3U
Authority: CN
Inventors: 不公告发明人
Original assignee: Tangshan Pailefu Technology Co Ltd
Current assignee: Tangshan Pailefu Technology Co Ltd
Priority date: 2019-01-22
Filing date: 2019-01-22
Publication date: 2020-01-21
Anticipated expiration: 2029-01-22

Abstract

The utility model relates to a numerical control longmen technical field just discloses a large-scale numerical control longmen lead screw supports, including lead screw body and longmen base, the outside cover of lead screw body is equipped with antifriction bearing, antifriction bearing inner wall and lead screw body outer wall fixed connection, and the antifriction bearing bottom is connected with the connecting rod, and the connecting rod bottom is connected with connecting block two, and lead screw body is located longmen base top, is equipped with the hollow tube between lead screw body and the longmen base, and the hollow tube outside is equipped with the bull stick, and the bull stick is close to the lateral wall of hollow tube and. The utility model discloses a set up screw rod one, screw rod two, thread bush, gag lever post, spacing groove, bull stick and elevator, utilize and rotate the bull stick, drive screw rod two and rotate to drive screw rod one and rotate, cause the thread bush to go up and down, thereby drive the elevator and rise, reached the purpose that adapts to the lead screw of co-altitude, solved the problem that current strutting arrangement can not adapt to the lead screw of co-altitude.

Description

Large-scale numerical control gantry lead screw support

Technical Field

The utility model relates to a numerical control longmen technical field specifically is a large-scale numerical control longmen lead screw supports.

Background

The screw rod is used as a key part for transmitting power and positioning of the numerical control machine tool and is an important guarantee for the performance of the machine tool. At present, a ball screw is firstly pushed by functional part short-distance transmission in the field of precise transmission, but the ball screw transmission is point contact, the local contact stress of a contact force point is large, the ball screw transmission can be damaged due to stripping caused by fatigue after a certain use period, and the ball screw is scrapped, which is not allowed in medium-sized transmission, and the screw cannot normally work due to overlarge deflection under the self-weight of the screw, so that a machine tool driven by the ball screw is generally suitable for a machine tool with a longitudinal stroke not larger than 6m due to the limitation of the self-weight of the ball screw, and the existing screw can be additionally provided with a plurality of supporting devices for preventing descending, however, the supporting devices have a plurality of defects, such as the ball screw can only be suitable for the screw with the same height and occupies too.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a large-scale numerical control longmen lead screw supports, has reached the purpose that adapts to the lead screw of co-altitude not.

In order to achieve the above object, the utility model provides a following technical scheme: a large numerical control gantry screw support comprises a screw body and a gantry base, wherein a rolling bearing is sleeved outside the screw body, the inner wall of the rolling bearing is fixedly connected with the outer wall of the screw body, the bottom of the rolling bearing is connected with a connecting rod, the bottom of the connecting rod is connected with a second connecting block, the screw body is positioned above the gantry base, a hollow tube is arranged between the screw body and the gantry base, a rotating rod is arranged outside the hollow tube, the rotating rod is close to the side wall of the hollow tube and is connected with one end of a screw rod, the other end of the screw rod penetrates through the side wall of the hollow tube and extends into the hollow tube, a screw rod I and a thread sleeve are arranged inside the hollow tube, the top of the screw rod I penetrates through the bottom of the thread sleeve and extends into the thread sleeve, the outer wall of the screw rod, the side wall of the threaded sleeve is connected with a limiting rod, one end of the limiting rod, which is far away from the threaded sleeve, penetrates through the notch of the limiting groove and extends to the inside of the limiting groove, a lifting block is arranged above the hollow pipe, a second placing groove is arranged at the top of the lifting block, the four side walls and the bottom of the second connecting block are all bonded with the inner wall of the rubber sleeve, the bottom of the second connecting block penetrates through the notch of the second placing groove and extends into the second placing groove, the outer wall of the rubber sleeve is contacted with the wall of the second placing groove, the top of the gantry base is connected with a fixed block, the top of the fixed block is provided with a first placing groove, the bottom of the hollow pipe is connected with a first connecting block, one end of the connecting block penetrates through a notch of the placing groove and extends into the placing groove, bolt holes are formed in the side wall of the connecting block and the side wall of the fixing block, and a bolt is arranged outside the fixed block, and the bolt is in threaded connection with the bolt hole in the side wall of the fixed block and the bolt hole in the side wall of the connecting block.

Preferably, the bottom of the lifting block is connected with a first fixed bearing, and the inner wall of the first fixed bearing is connected with the outer wall of the top of the threaded sleeve.

Preferably, the inner wall of the hollow tube is connected with a second fixed bearing and a third fixed bearing, the inner wall of the second fixed bearing is connected with the outer wall of one end of the second screw, and the inner wall of the third fixed bearing is connected with the outer wall of the bottom end of the first screw.

Preferably, one end of the limiting rod, which is far away from the threaded sleeve, is in contact with the wall of the limiting groove, and the front surface and the back surface of the limiting rod, which are positioned on the inner wall of the limiting groove, are in contact with the wall of the limiting groove.

Preferably, the horizontal height of the top of the screw is higher than the horizontal height of the top of the groove wall of the limiting groove.

Preferably, the first bottom and the four side walls of the connecting block are in contact with the first groove wall of the placing groove, and the bottom of the hollow pipe is in contact with the top of the fixing block.

Preferably, the lifting block is circular in shape, and the outer diameter of the lifting block is consistent with the inner diameter of the hollow pipe.

The utility model provides a large-scale numerical control longmen lead screw supports. The method has the following beneficial effects:

(1) the utility model discloses a set up screw rod one, screw rod two, thread bush, gag lever post, spacing groove, bull stick and elevator, utilize and rotate the bull stick, drive screw rod two and rotate to drive screw rod one and rotate, cause the thread bush to go up and down, thereby drive the elevator and rise, reached the purpose that adapts to the lead screw of co-altitude, solved the problem that current strutting arrangement can not adapt to the lead screw of co-altitude.

(2) The utility model discloses a with the shape of elevator and the shape looks adaptation of hollow pipe inner wall, when not using, can rotate the bull stick, drive the thread bush and descend to it is inside to return to the hollow pipe that the elevator is driven, has reached the purpose that reduces occupation space.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of A in FIG. 1;

fig. 3 is a top view of the lifting block of the present invention.

In the figure: 1 lead screw body, 2 antifriction bearing, 3 connecting rods, 4 elevator blocks, 5 longmen bases, 6 hollow tubes, 7 gag lever posts, 8 spacing grooves, 9 thread bushes, 10 screw rod one, 11 bull sticks, 12 screw rod two, 13 bolts, 14 fixed blocks, 15 connecting block one, 16 standing groove one, 17 connecting block two, 18 standing groove two, 19 rubber sleeves.

Detailed Description

As shown in fig. 1-3, the utility model provides a technical solution: a large numerical control gantry screw support comprises a screw body 1 and a gantry base 5, a rolling bearing 2 is sleeved outside the screw body 1, the inner wall of the rolling bearing 2 is fixedly connected with the outer wall of the screw body 1, the bottom of the rolling bearing 2 is fixedly connected with a connecting rod 3, the bottom of the connecting rod 3 is fixedly connected with a connecting block II 17, the screw body 1 is positioned above the gantry base 5, a hollow tube 6 is arranged between the screw body 1 and the gantry base 5, a rotating rod 11 is arranged outside the hollow tube 6, the side wall of the rotating rod 11, which is close to the hollow tube 6, is fixedly connected with one end of a screw rod II 12, the other end of the screw rod II 12 penetrates through the side wall of the hollow tube 6 and extends into the hollow tube 6, a screw rod I10 and a thread sleeve 9 are arranged inside the hollow tube 6, a fixed bearing II and a fixed bearing III are fixedly connected with, the top of a first screw rod 10 penetrates through the bottom of a threaded sleeve 9 and extends into the threaded sleeve 9, the outer wall of the first screw rod 10 is in threaded connection with the inner wall of the threaded sleeve 9, a second screw rod 12 is meshed with the first screw rod 10, a limiting groove 8 is formed in the inner wall of a hollow tube 6, the horizontal height of the top of the first screw rod 10 is higher than the horizontal height of the top of the groove wall of the limiting groove 8, a limiting rod 7 is fixedly connected to the side wall of the threaded sleeve 9, one end, away from the threaded sleeve 9, of the limiting rod 7 extends into the limiting groove 8 through the notch of the limiting groove 8, one end, away from the threaded sleeve 9, of the limiting rod 7 is in contact with the groove wall of the limiting groove 8, the front surface and the back surface of the limiting rod 7, which are positioned on the inner wall of the limiting groove 8, a lifting block 4 is arranged above the hollow tube 6, the lifting block 4, the rotating rod 11 can be rotated to drive the threaded sleeve 9 to descend, so as to drive the lifting block 4 to retract into the hollow tube 6, and the purpose of reducing the occupied space is achieved, the bottom of the lifting block 4 is fixedly connected with a first fixed bearing, the inner wall of the first fixed bearing is fixedly connected with the outer wall of the top of the threaded sleeve 9, the top of the lifting block 4 is provided with a second placing groove 18, the four side walls and the bottom of a second connecting block 17 are all bonded with the inner wall of a rubber sleeve 19, the bottom of the second connecting block 17 penetrates through the notch of the second placing groove 18 and extends into the interior of the second placing groove 18, the outer wall of the rubber sleeve 19 is in contact with the groove wall of the second placing groove 18, the top of the gantry base 5 is fixedly connected with a fixed block 14, the top of the first fixing block 14 is provided with a first placing groove 16, the bottom of the hollow tube 6 is, 14 outsides of fixed block are equipped with bolt 13, bolt 13 is threaded connection with the bolt hole of 14 lateral walls of fixed block and the bolt hole of 15 lateral walls of connecting block, it conveniently dismantles to set up bolt 13, connecting block 15 bottoms and four lateral walls all with 16 cell wall contacts of standing groove, 6 bottoms of hollow tube and 14 top contacts of fixed block, through setting up screw rod one 10, screw rod two 12, thread bush 9, gag lever post 7, spacing groove 8, bull stick 11 and elevator 4, utilize and rotate bull stick 11, drive screw rod two 12 and rotate, thereby drive screw rod one 10 and rotate, cause the thread bush 9 to go up and down, thereby it rises to drive elevator 4, the purpose of the lead screw of adaptation co-altitude has been reached.

When the lifting device is used, the rotating rod 11 is rotated to drive the screw rod II 12 to rotate, the screw rod II 12 is meshed with the screw rod I10, the screw rod I12 rotates to drive the screw rod I10 to rotate, the screw rod I10 rotates to drive the threaded sleeve 9 to rotate and ascend, the lifting block 4 is driven to ascend under the action of the fixed bearing I, so that the lifting device is suitable for lead screws with different heights, when the lifting device is not used, the rotating rod 11 is rotated reversely, the screw rod II 12 rotates reversely, the lifting block 4 descends, the lifting block is recycled inside the hollow tube 6, and the purpose of reducing occupied space is achieved.

To sum up can, the utility model discloses a set up screw rod 10, two 12 of screw rods, thread bush 9, gag lever post 7, spacing groove 8, bull stick 11 and elevator 4, utilize and rotate bull stick 11, it rotates to drive two 12 of screw rods, thereby drive a screw rod 10 and rotate, cause thread bush 9 to go up and down, thereby it rises to drive elevator 4, the purpose that adapts to the lead screw of co-altitude has been reached, the problem that current strutting arrangement can not adapt to the lead screw of co-altitude is solved, shape looks adaptation through the shape with elevator 4 and 6 inner walls of hollow tube, when not using, can rotate bull stick 11, it descends to drive thread bush 9, thereby it contracts to return inside hollow tube 6 to drive elevator 4, the purpose that reduces occupation space has been reached.

Claims

1. The utility model provides a large-scale numerical control longmen lead screw supports, includes lead screw body (1) and longmen base (5), its characterized in that: the screw rod comprises a screw rod body (1), a rolling bearing (2) is sleeved outside the screw rod body (1), the inner wall of the rolling bearing (2) is fixedly connected with the outer wall of the screw rod body (1), a connecting rod (3) is connected to the bottom of the rolling bearing (2), a second connecting block (17) is connected to the bottom of the connecting rod (3), the screw rod body (1) is positioned above a gantry base (5), a hollow pipe (6) is arranged between the screw rod body (1) and the gantry base (5), a rotating rod (11) is arranged outside the hollow pipe (6), the side wall, close to the hollow pipe (6), of the rotating rod (11) is connected with one end of a second screw rod (12), the other end of the second screw rod (12) penetrates through the side wall of the hollow pipe (6) and extends into the hollow pipe (6), a first screw rod (10) and a thread sleeve (9) are arranged inside the hollow pipe (6), the outer wall of the first screw rod (10) is in threaded connection with the inner wall of the threaded sleeve (9), the second screw rod (12) is meshed with the first screw rod (10), a limiting groove (8) is formed in the inner wall of the hollow pipe (6), a limiting rod (7) is connected to the side wall of the threaded sleeve (9), one end, far away from the threaded sleeve (9), of the limiting rod (7) penetrates through a notch of the limiting groove (8) and extends into the limiting groove (8), a lifting block (4) is arranged above the hollow pipe (6), a second placing groove (18) is formed in the top of the lifting block (4), four side walls and the bottom of the second connecting block (17) are all bonded with the inner wall of the rubber sleeve (19), the bottom of the second connecting block (17) penetrates through a notch of the second placing groove (18) and extends into the second placing groove (18), the outer wall of the rubber sleeve (19) is in contact with the groove wall of the second placing groove (18, the improved bolt-free drilling machine is characterized in that a first placing groove (16) is formed in the top of the fixing block (14), a first connecting block (15) is connected to the bottom of the hollow tube (6), one end of the first connecting block (15) penetrates through a first placing groove (16) notch and extends to the inside of the first placing groove (16), bolt holes are formed in the side wall of the first connecting block (15) and the side wall of the fixing block (14), bolts (13) are arranged outside the fixing block (14), and the bolts (13) are in threaded connection with the bolt holes in the side wall of the fixing block (14) and the bolt holes in the side wall.

2. The large numerical control gantry screw support according to claim 1, characterized in that: the bottom of the lifting block (4) is connected with a first fixed bearing, and the inner wall of the first fixed bearing is connected with the outer wall of the top of the threaded sleeve (9).

3. The large numerical control gantry screw support according to claim 1, characterized in that: the inner wall of the hollow tube (6) is connected with a second fixed bearing and a third fixed bearing, the inner wall of the second fixed bearing is connected with the outer wall of one end of the second screw rod (12), and the inner wall of the third fixed bearing is connected with the outer wall of the bottom end of the first screw rod (10).

4. The large numerical control gantry screw support according to claim 1, characterized in that: one end, far away from the threaded sleeve (9), of the limiting rod (7) is in contact with the groove wall of the limiting groove (8), and the front surface and the back surface of the limiting rod (7) located on the inner wall of the limiting groove (8) are in contact with the groove wall of the limiting groove (8).

5. The large numerical control gantry screw support according to claim 1, characterized in that: the horizontal height of the top of the first screw rod (10) is higher than the horizontal height of the top of the groove wall of the limiting groove (8).

6. The large numerical control gantry screw support according to claim 1, characterized in that: the bottom and the four side walls of the first connecting block (15) are in contact with the wall of the first placing groove (16), and the bottom of the hollow pipe (6) is in contact with the top of the fixing block (14).

7. The large numerical control gantry screw support according to claim 1, characterized in that: the lifting block (4) is circular in shape, and the outer diameter of the lifting block (4) is consistent with the inner diameter of the hollow pipe (6).