CN217800460U - Long lead screw bending prevention device for machine tool - Google Patents
Long lead screw bending prevention device for machine tool Download PDFInfo
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- CN217800460U CN217800460U CN202221514599.7U CN202221514599U CN217800460U CN 217800460 U CN217800460 U CN 217800460U CN 202221514599 U CN202221514599 U CN 202221514599U CN 217800460 U CN217800460 U CN 217800460U
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- lead screw
- long lead
- screw
- guide rail
- machine tool
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Abstract
The utility model relates to a lead screw field for the lathe, concretely relates to device is prevented bending by long lead screw for lathe. The automatic screw-driving mechanism comprises a long screw arranged on the front wall of a machine tool and a screw nut sleeved on the long screw, and is characterized by further comprising a guide rail, a roller assembly, a moving frame and a sliding table, wherein the roller assembly comprises a group of rollers for supporting the long screw, screw rods with opposite screw threads at two ends, a driving motor and a time controller; the sliding table is fixedly connected to the screw nut, and the lower end of the sliding table is provided with a shifting plate for pushing the movable frame; an inelastic connecting rope with the length being one half of that of the long lead screw is connected between the sliding table and the moving frame. The utility model provides a slip table does not nevertheless influence the normal functioning speed's of slip table long lead screw bending prevention device for lathe with the device linkage that supports long lead screw.
Description
Technical Field
The utility model relates to a lead screw field for the lathe, concretely relates to device is prevented bending by long lead screw for lathe.
Background
The ball screw is mainly composed of a screw, a nut and balls, and has a main function of converting a rotational motion into a linear motion or converting a torque into an axial acting force. Horizontal installation's long lead screw can be bending deformation under the action of gravity, and crooked lead screw produces vibration and noise at the transmission in-process, can reduce the work precision of equipment, also can lead to ball to scrap in advance simultaneously, influences its life, has increased manufacturing enterprise's manufacturing cost.
In order to solve this problem, application number 201720048258.8's patent discloses a movable long lead screw supporting mechanism, including slip table and removal supporting slide, be provided with removal slider linkage part on the slip table, it links to each other and pushes away, draws with removal supporting slide to remove slider linkage part remove supporting slide, the bottom of slip table and removal supporting slide is provided with one section support base, it supports to support the base remove supporting slide. When the movable supporting slide block moves and is fixed, the clamping is not caused, and the operation is very smooth.
But the support slider supports and receives the pressure of long lead screw and difficult removal in long lead screw middle part, and the slip table drives the support slider and can be influenced the functioning speed because of receiving such resistance when moving out from the middle of long lead screw, influences the precision of machine tooling product.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the above-mentioned not enough of prior art, a slip table and the device linkage that supports the long lead screw do not nevertheless influence the normal functioning speed's of slip table long lead screw device of preventing bending for lathe is provided.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
a long lead screw bending-proof device for a machine tool comprises a long lead screw arranged on the front wall of the machine tool and a lead screw nut sleeved on the long lead screw, and is characterized by also comprising a guide rail, a roller component, a movable frame and a sliding table, wherein,
the guide rail is arranged on the front wall of the machine tool and is positioned below the long lead screw, and the guide rail is parallel to the long lead screw;
the roller assembly comprises a group of rollers for supporting the long lead screw, a screw rod with threads with opposite turning directions at two ends, a driving motor and a time controller, wherein the group of rollers are respectively connected with two ends of the screw rod through a roller frame in a threaded manner, the driving motor is connected onto the screw rod, and the time controller is electrically connected with the driving motor.
Set for time through the time controller, can control driving motor and regularly start and close, can drive a set of gyro wheel when driving motor starts and be close to each other or keep away from, can support when the gyro wheel is close to each other long lead screw bottom, no longer with long lead screw contact when keeping away from each other.
The moving frame comprises a frame body, the lower end of the frame body is provided with wheels, a sliding block matched with the guide rail is arranged on the frame body, the upper end of the frame body is provided with a supporting table, and the roller assemblies are arranged on the supporting table;
the sliding table is fixedly connected to the screw nut, and the lower end of the sliding table is provided with a shifting plate for pushing the movable frame;
an inelastic connecting rope with the length being one half of that of the long lead screw is connected between the sliding table and the moving frame.
Preferably, the length of the guide rail is half of the length of the long screw rod, and one end of the guide rail is opposite to the center of the long screw rod.
Preferably, the support platform is provided with limit baffles at the left end and the right end of the roller carrier.
Preferably, the guide rail is a groove-shaped guide rail, and the slider is embedded in the groove of the guide rail.
Preferably, the inelastic connecting rope is a steel wire rope.
The utility model has the advantages that:
1. the utility model effectively avoids the downward bending deformation of the long lead screw by supporting the roller components in the middle of the long lead screw;
2. the roller assemblies comprise the time controller, so that the roller assemblies can be controlled to be far away from the long lead screw before the sliding table collides with the long lead screw, namely, the roller is not loaded any more, the sliding table can be easily pushed to slide along the guide rail, the moving process of the sliding table is prevented from being influenced by external force, and the high precision of machine tool machining is ensured;
3. through setting up the connection rope, can tractive wheel components to the middle department of long lead screw when realizing slip table reverse motion, realize wheel components's resetting, simple structure is effective.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of a first state of the present invention;
fig. 3 is a schematic structural view of a second state of the present invention;
fig. 4 is a schematic structural diagram of a third state of the present invention;
fig. 5 is a schematic structural diagram of a fourth state of the present invention;
in the figure: 1. the automatic feeding device comprises a long lead screw, 2 parts of a lead screw nut, 3 parts of a guide rail, 4 parts of a roller assembly, 40 parts of a roller, 41 parts of a screw rod, 42 parts of a driving motor, 5 parts of a moving frame, 50 parts of a frame body, 51 parts of a wheel, 52 parts of a sliding block, 53 parts of a supporting table, 530 parts of a limiting baffle, 6 parts of a sliding table, 60 parts of a shifting plate and 7 parts of a connecting rope.
Detailed Description
The principles and features of the present invention will be described with reference to the drawings, which are provided for illustration purposes only and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 5, the long lead screw bending prevention device for a machine tool of the present embodiment includes a long lead screw 1 disposed on a front wall of the machine tool, a lead screw nut 2 sleeved on the long lead screw 1, a guide rail 3, a roller assembly 4, a moving frame 5, and a sliding table 6, wherein,
the guide rail 3 is arranged on the front wall of the machine tool and is positioned below the long lead screw 1, and the guide rail 3 is parallel to the long lead screw 1; in this embodiment, as a preferable mode, the length of the guide rail 3 is half of the length of the long screw 1, and one end of the guide rail faces the center of the long screw 1.
The roller assembly 4 comprises a group of rollers 40 for supporting the long lead screw 1, a screw rod 41 with threads with opposite turning directions at two ends, a driving motor 42 and a time controller, wherein the group of rollers 40 are respectively connected with two ends of the screw rod 41 in a threaded manner through a roller frame, the driving motor 42 is connected to the screw rod 41, and the time controller is electrically connected with the driving motor 42; the time controller is used for setting time, the driving motor 42 can be controlled to be started and closed at fixed time, the driving motor 42 can drive a group of rollers 40 to be close to or away from each other when being started, and the rollers 40 can be supported at the bottom end of the long lead screw 1 when being close to each other and are not contacted with the long lead screw 1 when being away from each other.
The moving frame 5 comprises a frame body 50 with wheels 51 at the lower end, a slide block 52 matched with the guide rail 3 is arranged on the frame body 50, a support platform 53 is arranged at the upper end of the frame body 50, and the roller assembly 4 is arranged on the support platform 53; preferably, the support platform 53 is provided with limit baffles 530 at the left and right ends of the roller frame. In this embodiment, the guide rail 3 is a groove-type guide rail 3, and the slider 52 is fitted in the groove of the guide rail 3, so as to prevent foreign matter from falling into the guide rail 3, and lubricating oil can be injected between the slider 52 and the guide rail 3, so that the running resistance of the slider 52 is very small.
The sliding table 6 is fixedly connected to the screw nut 2, and the lower end of the sliding table 6 is provided with a shifting plate 60 for pushing the movable frame 5; in this embodiment, the sliding table 6 includes a top plate, a side plate, and a shifting plate 60, the top plate is used for mounting tools such as a tool bit, the side plate is used for connecting the lead screw nut 2, and the shifting plate 60 is connected to the lower end of the side plate and used for pushing the movable frame 5.
A connecting rope 7 with the length being half of that of the long lead screw 1 is connected between the sliding table 6 and the moving frame 5. The connecting rope 7 is a non-elastic rope which can be a steel wire rope or an iron chain.
When the device is used, the parameters of the time controller are set according to the running time of the sliding table 6, so that the driving motor 42 drives the roller 40 to be far away from the long screw 1 before the sliding table 6 collides with the moving frame 5, and the driving motor 42 drives the roller 40 to be close to each other and to be supported at the bottom end of the long screw 1 again after the roller 40 returns to the middle position of the long screw 1. As shown in fig. 2, the sliding table 6 is located at the right end of the long lead screw 1, the roller 40 is supported in the middle of the long lead screw 1, as shown in fig. 3, the sliding table 6 moves to the left, as shown in fig. 4, the shifting plate 60 of the sliding table 6 collides with the moving frame 5 and pushes the moving frame 5 to move to the left end of the long lead screw 1, as shown in fig. 5, when the sliding table 6 returns, the connecting rope 7 is straightened when the sliding table moves to the middle of the long lead screw 1, the supporting frame is pulled to move to the right, finally, the sliding table 6 moves to the right end of the long lead screw 1, the supporting frame moves to the middle of the long lead screw 1, and the driving motor 42 is started again to enable the roller 40 to be supported below the long lead screw 1. And the process is circulated. The utility model discloses effectively avoid long lead screw 1's bending deformation can not exert an influence to the operation of slip table 6.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (5)
1. A long lead screw bending-proof device for a machine tool comprises a long lead screw (1) arranged on the front wall of the machine tool and a lead screw nut (2) sleeved on the long lead screw (1), and is characterized by also comprising a guide rail (3), a roller component (4), a movable frame (5) and a sliding table (6),
the guide rail (3) is arranged on the front wall of the machine tool and is positioned below the long lead screw (1), and the guide rail (3) is parallel to the long lead screw (1);
the roller assembly (4) comprises a group of rollers (40) for supporting the long lead screw (1), screw rods (41) with threads with opposite turning directions at two ends, a driving motor (42) and a time controller, the group of rollers (40) are respectively screwed at two ends of the screw rods (41) through roller frames, the driving motor (42) is connected to the screw rods (41), and the time controller is electrically connected with the driving motor (42);
the moving frame (5) comprises a frame body (50) with wheels (51) at the lower end, a sliding block (52) matched with the guide rail (3) is arranged on the frame body (50), a support table (53) is arranged at the upper end of the frame body (50), and the roller wheel assembly (4) is arranged on the support table (53);
the sliding table (6) is fixedly connected to the screw nut (2), and the lower end of the sliding table (6) is provided with a shifting plate (60) for pushing the moving frame (5);
an inelastic connecting rope (7) with the length being half of that of the long lead screw (1) is connected between the sliding table (6) and the movable frame (5).
2. The long lead screw bending prevention device for the machine tool according to claim 1, wherein the length of the guide rail (3) is half of the length of the long lead screw (1) and one end of the guide rail is opposite to the center of the long lead screw (1).
3. The long lead screw bending prevention device for a machine tool according to claim 1, wherein the support base (53) is provided with limit stoppers (530) at left and right ends of the roller frame.
4. The long lead screw bending prevention device for the machine tool according to claim 1, wherein the guide rail (3) is a groove-type guide rail (3), and the slider (52) is fitted in a groove of the guide rail (3).
5. The long lead screw bending prevention device for the machine tool according to claim 1, wherein the inelastic connecting rope (7) is a steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221514599.7U CN217800460U (en) | 2022-06-17 | 2022-06-17 | Long lead screw bending prevention device for machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221514599.7U CN217800460U (en) | 2022-06-17 | 2022-06-17 | Long lead screw bending prevention device for machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217800460U true CN217800460U (en) | 2022-11-15 |
Family
ID=83991652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221514599.7U Active CN217800460U (en) | 2022-06-17 | 2022-06-17 | Long lead screw bending prevention device for machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217800460U (en) |
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2022
- 2022-06-17 CN CN202221514599.7U patent/CN217800460U/en active Active
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