CN215469801U - Screw rod assembly for numerical control lathe - Google Patents
Screw rod assembly for numerical control lathe Download PDFInfo
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- CN215469801U CN215469801U CN202121276831.3U CN202121276831U CN215469801U CN 215469801 U CN215469801 U CN 215469801U CN 202121276831 U CN202121276831 U CN 202121276831U CN 215469801 U CN215469801 U CN 215469801U
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Abstract
The utility model relates to the technical field of numerical control machines, in particular to a screw rod assembly for a numerical control lathe, which comprises a ball screw pair, a first supporting assembly and a second supporting assembly, wherein the ball screw pair comprises a ball screw and a nut installed on the ball screw, one end of the ball screw is connected with the first supporting assembly, the other end of the ball screw is connected with the second supporting assembly, the first supporting assembly comprises a first supporting seat, a first gland, a locking nut, a first bearing spacer bush, a thrust angular contact ball bearing and two first lip-shaped sealing rings, the first bearing spacer bush, the thrust angular contact ball bearing and the first lip-shaped sealing rings are installed in a cavity surrounded by the first gland and the first supporting seat, the first lip-shaped sealing rings are arranged on the left side and the right side of the thrust angular contact ball bearing, and the second supporting assembly comprises a second supporting seat, a second gland, a second bearing spacer bush, a deep groove ball bearing, a first lip-shaped sealing ring and a second supporting seat, A circlip for the shaft and a second lip seal ring. The utility model has the advantage of good stability.
Description
Technical Field
The utility model relates to the technical field of numerical control machine tools, in particular to a screw rod assembly for a numerical control machine tool.
Background
The numerical control lathe lead screw subassembly is used for the digit control machine tool, mainly comprises lead screw, nut and support frame, and the lead screw passes through the nut with rotary motion conversion into linear motion under servo motor's drive, thereby among the prior art, the removal of main shaft and the removal of workstation all need to drive through the lead screw and remove. The lead screw is at the working process, and both ends are connected with the supporting seat respectively and guarantee lead screw pivoted stability, and current supporting seat stability can be relatively poor, makes numerical control lathe lead screw subassembly maintenance rate high.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a screw rod assembly for a numerical control lathe, which has the advantage of good stability.
In order to achieve the purpose, the utility model adopts the technical scheme that: a screw rod assembly for a numerical control lathe comprises a ball screw pair, a first supporting assembly and a second supporting assembly, wherein the ball screw pair comprises a ball screw and a nut installed on the ball screw, one end of the ball screw is connected with the first supporting assembly, the other end of the ball screw is connected with the second supporting assembly, the first supporting assembly comprises a first supporting seat, a first pressing cover, a locking nut, a first bearing spacer, a thrust angular contact ball bearing and two first lip-shaped sealing rings, the first bearing spacer, the thrust angular contact ball bearing and the first lip-shaped sealing rings are installed in a cavity which is formed by the first pressing cover and the first supporting seat in a surrounding mode, the first lip-shaped sealing rings are arranged on the left side and the right side of the thrust angular contact ball bearing, the locking nut is abutted to the first pressing cover and the first bearing spacer, and the locking nut enables the first pressing cover to be tightly connected with the first supporting seat,
the second supporting assembly comprises a second supporting seat, a second gland, a second bearing spacer, a deep groove ball bearing, a shaft elastic check ring and a second lip-shaped sealing ring, the second bearing spacer, the deep groove ball bearing, the second lip-shaped sealing ring and the shaft elastic check ring are installed in a cavity which is formed by the second gland and the second supporting seat in a surrounding mode, the second bearing spacer and the shaft elastic check ring are fixed on two sides of the deep groove ball bearing in a clamping sleeve mode, the second lip-shaped sealing ring is sleeved on the second bearing spacer, and the second gland is fixed on the right end face of the second supporting seat through screws.
Preferably, an anti-collision block is further fixed to one side, close to the nut, of the first support seat.
Preferably, an anti-collision block is further fixed to one side, close to the nut, of the second support seat.
Preferably, the crash block is made of polyurethane.
Preferably, the number of the thrust angular ball bearings is three.
The beneficial effects of the utility model are as follows: according to the utility model, the first support assembly and the second support assembly are used, the stability is improved, the sealing performance is improved by the matching of the first support seat, the first gland and the two first lip-shaped sealing rings, the sealing performance is improved by the matching of the second support seat, the second gland and the second lip-shaped sealing ring, the abrasion of a nut is reduced by arranging the anti-collision block, and the maintenance rate of the numerical control lathe screw rod assembly is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is an enlarged view of a portion B in fig. 1.
The reference numerals include:
1-ball screw, 2-nut, 3-first supporting seat, 4-first pressing cover, 5-locking nut, 6-first bearing spacer, 7-thrust angular contact ball bearing, 8-first lip-shaped sealing ring, 9-second supporting seat, 10-second pressing cover, 11-second bearing spacer, 12-deep groove ball bearing, 13-elastic retainer ring for shaft, 14-second lip-shaped sealing ring and 15-anti-collision block.
Detailed Description
The present invention is described in detail below with reference to the attached drawings.
As shown in fig. 1-3, a screw assembly for a numerically controlled lathe includes a ball screw pair, a first support assembly and a second support assembly, the ball screw pair includes a ball screw 1 and a nut 2 installed on the ball screw 1, one end of the ball screw 1 is connected with the first support assembly, the other end is connected with the second support assembly, the first support assembly includes a first support seat 3, a first gland 4, a lock nut 5, a first bearing spacer 6, a thrust angular contact ball bearing 7 and two first lip-shaped seal rings 8, the first bearing spacer 6, the thrust angular contact ball bearing 7 and the first lip-shaped seal rings 8 are installed in a cavity surrounded by the first gland 4 and the first support seat 3, the first lip-shaped seal rings 8 are installed on the left and right sides of the thrust angular contact ball bearing 7, the lock nut 5 is abutted to the first gland 4 and the first bearing spacer 6, the locking nut 5 tightly connects the first gland 4 with the first support base 3,
the second supporting assembly comprises a second supporting seat 9, a second pressing cover 10, a second bearing spacer 11, a deep groove ball bearing 12, a shaft elastic retainer ring 13 and a second lip-shaped sealing ring 14, the second bearing spacer 11, the deep groove ball bearing 12, the second lip-shaped sealing ring 14 and the shaft elastic retainer ring 13 are installed in a cavity surrounded by the second pressing cover 10 and the second supporting seat 9, the second bearing spacer 11 and the shaft elastic retainer ring 13 are clamped and fixed on two sides of the deep groove ball bearing 12, the second lip-shaped sealing ring 14 is sleeved on the second bearing spacer 11, and the second pressing cover 10 is fixed on the end face of the right side of the second supporting seat 9 through screws. When the device is used, the motor is connected to the left end of the ball screw 1 through the coupler, and the non-threaded section of the ball screw 1 is driven to rotate on the first supporting assembly and the second supporting assembly.
An anti-collision block 15 is further fixed on one side of the first supporting seat 3 close to the nut 2. The abrasion caused by the fact that the nut 2 touches the first supporting seat 3 during reversing is reduced.
An anti-collision block 15 is further fixed on one side of the second support seat 9 close to the nut 2. The abrasion caused by the fact that the nut 2 touches the second supporting seat 9 during reversing is reduced.
The anti-collision block 15 is made of polyurethane. It has good stability, chemical resistance and resilience.
The number of the thrust angular contact ball bearings 7 is three. The three angular contact thrust ball bearings 7 are matched to better improve the performance of the first support component.
The foregoing is only a preferred embodiment of the present invention, and many variations in the detailed description and the application range can be made by those skilled in the art without departing from the spirit of the present invention, and all changes that fall within the protective scope of the utility model are therefore considered to be within the scope of the utility model.
Claims (5)
1. The utility model provides a lead screw subassembly for numerical control lathe which characterized in that: including ball screw pair, first supporting component and second supporting component, ball screw is vice to include ball screw (1) and install nut (2) on ball screw (1), ball screw (1) one end links to each other with first supporting component, and the other end links to each other with second supporting component, first supporting component includes first supporting seat (3), first gland (4), lock nut (5), first bearing spacer (6), thrust angular contact ball bearing (7) and two first lip seal (8), first bearing spacer (6), thrust angular contact ball bearing (7), first lip seal (8) are installed and are enclosed into the cavity at first gland (4) and first supporting seat (3), and first lip seal (8) set up the left and right sides at thrust angular contact ball bearing (7), lock nut (5) and first gland (4), The first bearing spacer bush (6) is abutted, the first gland (4) is tightly connected with the first supporting seat (3) by the locking nut (5),
the second supporting assembly comprises a second supporting seat (9), a second gland (10), a second bearing spacer (11), a deep groove ball bearing (12), a shaft elastic check ring (13) and a second lip-shaped sealing ring (14), the second bearing spacer (11), the deep groove ball bearing (12), the second lip-shaped sealing ring (14) and the shaft elastic check ring (13) are installed in a cavity surrounded by the second gland (10) and the second supporting seat (9), the second bearing spacer (11) and the shaft elastic check ring (13) are fixed on two sides of the deep groove ball bearing (12) in a clamping manner, the second lip-shaped sealing ring (14) is sleeved on the second bearing spacer (11), and the second gland (10) is fixed on the right end face of the second supporting seat (9) through screws.
2. The lead screw assembly for a numerically controlled lathe according to claim 1, wherein: an anti-collision block (15) is further fixed on one side, close to the nut (2), of the first supporting seat (3).
3. The lead screw assembly for a numerically controlled lathe according to claim 1, wherein: and an anti-collision block (15) is further fixed on one side, close to the nut (2), of the second support seat (9).
4. The feed screw assembly for a numerically controlled lathe according to claim 2 or 3, wherein: the anti-collision block (15) is made of polyurethane.
5. The lead screw assembly for a numerically controlled lathe according to claim 1, wherein: the number of the thrust angular contact ball bearings (7) is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121276831.3U CN215469801U (en) | 2021-06-08 | 2021-06-08 | Screw rod assembly for numerical control lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121276831.3U CN215469801U (en) | 2021-06-08 | 2021-06-08 | Screw rod assembly for numerical control lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215469801U true CN215469801U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121276831.3U Active CN215469801U (en) | 2021-06-08 | 2021-06-08 | Screw rod assembly for numerical control lathe |
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| Country | Link |
|---|---|
| CN (1) | CN215469801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290085A (en) * | 2022-01-19 | 2022-04-08 | 帕马(上海)机床有限公司 | A support structure for a column screw pair of a CNC machine tool |
-
2021
- 2021-06-08 CN CN202121276831.3U patent/CN215469801U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290085A (en) * | 2022-01-19 | 2022-04-08 | 帕马(上海)机床有限公司 | A support structure for a column screw pair of a CNC machine tool |
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