CN209466006U - Long screw is driven Auxiliary support - Google Patents

Abstract

The utility model discloses a long screw drive auxiliary support, which comprises a bearing seat, a nut seat, a connecting rod and a workbench. rod, the right end of the nut seat is fixed with a nut, the top of the nut seat is fixedly connected to the workbench by screws, the nut is connected to the screw rod through thread transmission, and the bottom end of the screw rod is provided with a linear guide rail, The upper end of the linear guide rail is slidably engaged with a slider, and the top of the slider is fixedly connected with symmetrical support blocks, and the left and right ends of the two support blocks are fixedly connected with fixed plates symmetrically. The utility model avoids jumping when the screw rod rotates, avoids the decrease of the precision of the screw rod and the nut, and avoids damage to the support bearing, which affects the machining accuracy of the machine tool, and ensures the translational speed of the workbench, which obviously improves the working efficiency .

Description

Long screw drive auxiliary support

technical field

The utility model relates to the related technical field of screw rod transmission, in particular to an auxiliary support for long screw rod transmission.

Background technique

At present, usually when the screw rotates, jumping will occur. When the nut is about to run to the support at both ends of the screw at the same speed, the jumping value is the largest, and the transmission of the long screw is more obvious, which will cause the accuracy of the screw and the nut to drop. , The damage of the screw support bearing will affect the machining accuracy of the machine tool. In order to avoid this problem, the rotation speed of the screw rod is often lowered during work, thereby reducing the translation speed of the worktable, so that the work efficiency is obviously reduced.

Utility model content

The purpose of this utility model is to provide auxiliary support for the transmission of long screw rods to solve the problem that jumping occurs when the screw rods rotate in the above-mentioned background technology, especially at the two ends of the screw rods, the jumping value is the largest, resulting in the decrease of the accuracy of the screw rods and nuts. The damage of the screw support bearing affects the machining accuracy of the machine tool, and reduces the translation speed of the worktable, which obviously reduces the problem of work efficiency.

In order to achieve the above purpose, the utility model provides the following technical solutions: the auxiliary support for the transmission of the long screw rod, including a bearing seat, a nut seat, a connecting rod and a workbench. A screw is installed between the bearing seats, the right end of the nut seat is fixed with a nut, the top of the nut seat is fixedly connected with the workbench by screws, the nut and the screw are connected by thread transmission, and the screw The bottom end is provided with a linear guide rail.

Preferably, the total length of the screw rod is equal to the total length of the worktable plus the safety stroke of the screw rod.

Preferably, the total length of the connecting rod is half of the total length of the workbench.

Preferably, the upper end of the linear guide rail is slidably engaged with a slider, and the top end of the slider is fixedly connected with a left-right symmetrical support block.

Preferably, the left and right ends of the two support blocks are fixedly connected with front and back symmetrical fixing plates, and the front and back symmetrical connecting rods are fixedly connected between the left and right two said fixing plates.

Preferably, the slider is arranged in a U shape.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model, through the mutual cooperation and use of the linear guide rail, the slider, the fixed plate, the support block and the connecting rod, can make the screw nut also have a supporting point in the middle of the screw when it is about to run to the bearing support at both ends of the screw. The beating value a of the screw rod will be reduced to a/2, so as to ensure that the rotation speed of the screw rod can be within a reasonable range and ensure the normal use of the machine tool, which not only ensures the accuracy of the machine tool, but also improves the production efficiency.

Description of drawings

Fig. 1 is a front view of the structure of the utility model;

Fig. 2 is a top view of the structure of the utility model;

Fig. 3 is the right view of the structure of the utility model.

In the figure: 1. Worktable; 2. Bearing seat; 3. Screw rod; 4. Nut seat; 5. Nut; 6. Linear guide rail; 7. Slider; 8. Fixed plate; 9. Support block; pole.

Detailed ways

In order to avoid jumping when the screw rod rotates, to avoid the decrease of the precision of the screw rod and the nut, and to avoid damage to the support bearing, which affects the machining accuracy of the machine tool, and to ensure the translation speed of the workbench, and to significantly improve the work efficiency, the utility model Embodiments provide a filament drive auxiliary support. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-3, the utility model provides auxiliary support for long screw drive, including bearing seat 2, nut seat 4, connecting rod 10 and workbench 1, two bearing seats 2 are arranged, and left and right symmetrical, two A screw 3 is rotated between the bearing seats 2, and a nut 5 is fixedly installed on the right end of the nut seat 4. The top of the nut seat 4 is fixedly connected with the workbench 1 through screws, and the nut 5 is connected with the screw 3 through a screw drive. The bottom end of 3 is provided with a linear guide rail 6, the upper end of the linear guide rail 6 is slidingly clamped with a slider 7, and the top of the slider 7 is fixedly connected with a symmetrical support block 9, and the left and right ends of the two support blocks 9 are all symmetrical A fixed plate 8 is fixedly connected, and a front and rear symmetrical connecting rod 10 is fixedly connected between the left and right two fixed plates 8. The slider 7 is arranged in a U shape, and the total length of the screw rod 3 is equal to the total length of the workbench 1 plus the screw rod The safety stroke of 3 satisfies the maximum running stroke of the workbench 1. The total length of the connecting rod 10 is 1/2 of the total length of the workbench 1, so that when the nut 5 on the screw rod 3 moves to the support block 9 on the left, Avoid an increase in the run-out value of the spindle 3.

In the utility model, the rotating device of the external machine tool drives the screw 3 to rotate, and under the transmission effect of the screw 3 and the nut 5, the nut 5 drives the workbench 1 to move to the left, and at the same time, the nut 5 touches when moving to the left When the support block 9 is used, the support block 9 is driven to move to the left, while the support block 9 slides to the left through the slide block 7 and the linear guide rail 6, and there is also a support point in the middle of the screw mandrel 3, and the beating value a of the screw mandrel 3 will be reduced to a/2, so as to ensure that the rotation speed of the screw rod 3 can be within a reasonable range and ensure the normal use of the machine tool, which not only ensures the accuracy of the machine tool, but also improves the production efficiency.

In the practical description, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower" and "horizontal" are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of It is convenient to describe the utility and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the utility.

In this practical description, it should also be noted that, unless otherwise specified and limited, the terms "installation", "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, or It may be detachably connected, or integrally connected, may be mechanically connected, may also be electrically connected, may be directly connected, may also be connected through an intermediary, and may be internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. long screw is driven Auxiliary support, including bearing block (2), nut seat (4), connecting rod (10) and workbench (1), feature exists In: there are two bearing block (2) settings, and bilateral symmetry, is rotatably equipped with screw rod (3) between two bearing blocks (2), The right end of the nut seat (4) is fixedly installed with nut (5), and the top and workbench (1) of the nut seat (4) are solid by screw Fixed connection, the nut (5) are connect with screw rod (3) by screw-driven, and the bottom end of the screw rod (3) is equipped with linear guide (6).

2. long screw according to claim 1 is driven Auxiliary support, it is characterised in that: the total length etc. of the screw rod (3) The safety travel of screw rod (3) is added in the total length of workbench (1).

3. long screw according to claim 1 is driven Auxiliary support, it is characterised in that: the total length of the connecting rod (10) is The half of workbench (1) total length.

4. long screw according to claim 1 is driven Auxiliary support, it is characterised in that: the upper end of the linear guide (6) Sliding is connected with sliding block (7), and the top of the sliding block (7) is fixedly connected with symmetrical supporting block (9).

5. long screw according to claim 4 is driven Auxiliary support, it is characterised in that: a left side for two supporting blocks (9) Right both ends front and back is symmetrically fixedly connected with fixed plate (8), and it is right to be fixedly connected with front and back between two fixed plates (8) in left and right The connecting rod (10) of title.

6. long screw according to claim 4 is driven Auxiliary support, it is characterised in that: sliding block (7) setting is U-shaped.