阅读说明：本技术 一种顶丝往返运动机构 (Top thread reciprocating motion mechanism ) 是由 申文化 魏建忠 韩斌 郭超 吴旭琦 于 2019-09-29 设计创作，主要内容包括：本发明一种顶丝往返运动机构,属于机械加工工具技术领域；提供了一种结构简单、适宜用在狭小空间内的运动机构；技术方案为：一种顶丝往返运动机构,包括顶丝、顶丝板、卡板和工件,顶丝穿过顶丝板,顶丝板固定在一位置,顶丝与顶丝板螺纹相连,顶丝的末端设有同轴相连的轴颈和半球端,轴颈的外径小于半球端的外径,轴颈与卡板铰接,卡板与工件螺纹相连,顶丝在旋转下能够在顶丝板中进退,从而带动工件实现往复运动；本发明可应用在狭小空间内工件的移动。(The invention relates to a back-and-forth movement mechanism of a jackscrew, belonging to the technical field of machining tools; the movement mechanism has a simple structure and is suitable for being used in a narrow space; the technical scheme is as follows: a back-and-forth movement mechanism for a jackscrew comprises a jackscrew, a jackscrew plate, a clamping plate and a workpiece, wherein the jackscrew penetrates through the jackscrew plate, the jackscrew plate is fixed at one position, the jackscrew is in threaded connection with the jackscrew plate, the tail end of the jackscrew is provided with a shaft neck and a hemispherical end which are coaxially connected, the outer diameter of the shaft neck is smaller than that of the hemispherical end, the shaft neck is hinged with the clamping plate, the clamping plate is in threaded connection with the workpiece, and the jackscrew can advance and retreat in the jackscrew plate under rotation, so that the workpiece is driven to realize reciprocating movement; the invention can be applied to the movement of workpieces in a narrow space.)

1. A back and forth movement mechanism of a jackscrew is characterized in that: including jackscrew (1), jackscrew board (2), cardboard (3) and work piece (4), jackscrew board (2) are passed in jackscrew (1), jackscrew board (2) are fixed in a position, jackscrew (1) links to each other with jackscrew board (2) screw thread, the end of jackscrew (1) is equipped with coaxial continuous axle journal (13) and hemisphere end (14), the external diameter of axle journal (13) is less than the external diameter of hemisphere end (14), axle journal (13) are articulated with cardboard (3), cardboard (3) link to each other with work piece (4) screw thread, jackscrew (1) can be in jackscrew board (2) under the rotation, thereby drive work piece (4) and realize reciprocating motion.

2. The jack screw reciprocating mechanism according to claim 1, wherein: the head end of jackscrew (1) is equipped with square head (11), the middle section of jackscrew (1) is threaded rod (12).

3. The jack screw reciprocating mechanism according to claim 1, wherein: the clamping plate (3) is a circular plate with an opening, external threads are machined on the periphery of the circular plate, the clamping plate (3) is sleeved on the shaft neck (13), the workpiece (4) is provided with a blind hole, and the clamping plate (3) is in threaded connection with the blind hole.

4. A jack screw reciprocating mechanism according to claim 2, wherein: the square head (11) can also be a hexagonal head.

Technical Field

The invention discloses a back-and-forth movement mechanism for a jackscrew, and belongs to the technical field of machining tools.

Background

The common jackscrew can only be used for tightly jacking a workpiece and fixing the workpiece. If the workpiece moves back and forth along with the jackscrew, the jackscrew needs to penetrate through the workpiece, and the nut is screwed at the tail end of the jackscrew. This method is not suitable for use in a narrow space because of limited space and lack of space for operation.

Disclosure of Invention

The invention discloses a back-and-forth movement mechanism for a jackscrew, overcomes the defects in the prior art, and provides a movement mechanism which is simple in structure and suitable for being used in a narrow space.

In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a jackscrew reciprocating motion mechanism, includes jackscrew, jackscrew board, cardboard and work piece, and the jackscrew passes the jackscrew board, and the jackscrew board is fixed in a position, and the jackscrew links to each other with jackscrew board screw thread, and the end of jackscrew is equipped with coaxial continuous axle journal and hemisphere end, and the external diameter of axle journal is less than the external diameter of hemisphere end, and the axle journal is articulated with the cardboard, and the cardboard links to each other with the work piece screw thread, and the jackscrew can advance and retreat in the jackscrew board under the rotation to drive the work piece and realize reciprocating motion.

Preferably, the head end of the jackscrew is provided with a square head, and the middle section of the jackscrew is a threaded rod.

Preferably, the clamping plate is a circular plate with a notch, external threads are machined on the periphery of the circular plate, the clamping plate is sleeved on the shaft neck, the workpiece is provided with a blind hole, and the clamping plate is in threaded connection with the blind hole.

Preferably, the square head can also be a hexagonal head.

Compared with the prior art, the invention has the following beneficial effects.

According to the invention, the workpiece reaches the operation position along with the screwing of the jackscrew by screwing the jackscrew. The jackscrew is screwed out, and the workpiece retreats to the designated position along with the screwing-back of the jackscrew. The invention has simple structure, no need of maintenance, small requirement on space and suitability for various occasions.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural view of the jackscrew.

FIG. 3 is a schematic view of the card board.

FIG. 4 is a side view of the card.

In the figure, 1-top thread, 2-top thread plate, 3-clamping plate, 4-workpiece, 11-square head, 12-threaded rod, 13-journal and 14-semispherical end.

Detailed Description

The invention is further described below with reference to the accompanying drawings.