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Single-coordinate small-stroke feeding power box

A small-stroke, single-coordinate technology, which is applied in the direction of driving devices, other manufacturing equipment/tools, drilling/drilling equipment, etc., can solve the problems of inability to fully automatic production online, low equipment reliability, slow production pace, etc., to achieve Compact structure, fast electrical response, and good equipment rigidity

Inactive Publication Date: 2015-12-02
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the traditional boring and milling machine is used, it has the disadvantages of huge equipment, inability to produce fully automatic on-line production, slow production rhythm, and low equipment reliability.

Method used

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  • Single-coordinate small-stroke feeding power box
  • Single-coordinate small-stroke feeding power box

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment provides a single coordinate small stroke feed power box, refer to figure 1 and figure 2 , including the power box 1 installed on the frame, the inside of the power box 1 is equipped with an eccentric sleeve 2 through a bearing, the main shaft 3 is installed in the eccentric sleeve 2 through a bearing, one end of the main shaft 3 is connected with a large pulley 4, and the large belt The wheel 4 is connected to the power source 6 through the belt 5 (the power source here can be a motor, or a hydraulic cylinder and other equipment that can provide power) to obtain power; the eccentric sleeve 2 is equipped with a power rotation drive mechanism, the The power rotation drive mechanism is connected to the outer wall of the eccentric sleeve 2 to drive the eccentric sleeve 2 to rotate; a flexible tensioning mechanism 7 is installed beside the belt 5, and the flexible tensioning mechanism 7 is in contact with the belt 5 to tension the belt 5 .

[0025] In thi...

Embodiment 2

[0029] On the basis of embodiment 1, this embodiment is further described, referring to figure 1 and figure 2 , the power rotation drive mechanism here includes a transmission worm gear 8 that engages with the outer wall of the eccentric sleeve 2 to transmit power and a transmission worm 9 installed in cooperation with the transmission worm gear 8 , and the transmission worm 9 is arranged perpendicular to the axial direction of the eccentric sleeve 2 .

[0030] Use the servo motor to drive the transmission worm 9 to rotate. Due to the interaction between the transmission worm 9 and the transmission worm 8, the transmission worm 9 rotates and the transmission worm 8 rotates in a direction perpendicular to the transmission worm 9, and then the transmission worm 9 drives the eccentric sleeve 2 to perform Turn to realize the rotation of the eccentric sleeve 2.

[0031] Similarly, the power rotation driving mechanism here can also be a gear pair mechanism or a lead screw nut pair...

Embodiment 3

[0033] In the above two embodiments, since the position of the main shaft 3 relative to the position of the power box 1 changes, the center distance of the belt pair of the belt 5 changes accordingly. Here, the belt 5 is a V-belt or a toothed synchronous belt, so the belt drive Auxiliary will be provided with flexible tensioning mechanism 7, the reliable tensioning of keeping belt. In this example, if figure 2 As shown, the flexible tensioning mechanism 7 includes a tensioning wheel that interferes with and acts on the belt 5, the tensioning wheel is connected with a spring expansion part, and the other end of the spring expansion part is fixed on the frame.

[0034] In this structure, the spring expansion part is a structural part with a specific force. According to the tension requirements of the belt, an appropriate spring is selected to realize the structural function. The tension pulley is close to the belt, making the belt tighter; if the belt becomes tighter as the po...

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Abstract

The invention provides a single-coordinate small-stroke feeding power box which comprises a power box body arranged on a rack. The power box body is internally provided with an eccentric sleeve, the eccentric sleeve is internally provided with a main shaft, one end of the main shaft is connected with a big belt wheel, and the big belt wheel is connected with a power source through a belt to obtain power. A power rotating drive mechanism is arranged outside the eccentric sleeve, and the power rotating drive mechanism is connected with the outer wall of the eccentric sleeve to drive the eccentric sleeve to rotate. A flexible tension mechanism is further arranged beside the belt and makes contact with the belt to tension the belt. An eccentric sleeve principle is adopted for the single-coordinate small-stroke feeding power box, through the scheme that the eccentric sleeve is driven to rotate to drive the main shaft or a workbench to move, the function of changing the linear movement of the main shaft in the direction of one coordinate into micro rotation in one direction is achieved, and single-link large-speed-ratio transmission combination segmented deviation correction is used, so that the mechanical structure is greatly reduced while mechanism rigidity and movement accuracy in one direction are greatly increased.

Description

technical field [0001] The invention is used for spindle feed or worktable movement of a cutting machine tool (such as a special boring and milling machine) to realize small-stroke high-precision relative position adjustment, and is specifically a single-coordinate small-stroke feed power box. Background technique [0002] The design of traditional boring and milling machines mostly adopts the structure of screw guide rail pair and rack and pinion rail pair structure, and the relative feed motion of the spindle and the workpiece is realized by moving the power box components or the worktable. Using this type of structure, because the power box assembly or workbench needs to be driven, and the power box and workpiece workbench on a large machine tool are huge, which makes the drive power and mechanical structure size larger; because the controlled part has a large motion inertia, it can realize fast and high Accuracy control is difficult, and the applicability of equipment on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B47/02B23Q5/10B23P23/02
CPCB23Q5/10B23P23/02
Inventor 刘录锋赵西韩邱峰罗建峰倪伟民
Owner CHINA NAT HEAVY MACHINERY RES INSTCO
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