Vertical feeding mechanism and machine tool

Abstract

The utility model relates to the field of numerical control heavy boring machine equipment, in particular to a vertical feeding mechanism and a machine tool, which comprise a support, a driving part, a transmission component, a lead screw component, a stand column and a working part, the lead screw component comprises a lead screw and a lead screw nut, the lead screw nut is rotatably mounted on the lead screw, the lead screw is fixed on the stand column, and the driving part is fixed on the support. The driving part is in transmission connection with the lead screw nut through a transmission assembly, the support is fixed to the working part, the working part is movably installed on the stand column, and the axis of the driving part is parallel to the axis of the lead screw. The utility model has the beneficial effects that the lead screw is fixed, so that the lead screw nut is linearly fed on the lead screw, the support and the working part are driven to vertically move, the rotational inertia of the mechanism is greatly reduced, the inertia requirement on a driving motor is reduced, and meanwhile, the stability and the precision of a transmission system are also improved.

Description

Technical Field

[0001] The utility model relates to the field of CNC heavy-duty boring machine equipment, in particular to a vertical feeding mechanism and a machine tool. Background Art

[0002] Boring machine is a machine tool that mainly uses boring cutters to bore prefabricated holes. Usually, the rotation of the boring cutter is the main motion, and the movement of the boring cutter or the workpiece is the feed motion. It is mainly used to process high-precision holes or complete the finishing of multiple holes in one positioning. In addition, it can also be used for processing other processing surfaces related to hole finishing. Using different tools and accessories, it can also perform drilling, milling, and cutting with higher processing accuracy and surface quality than drilling machines. Boring machine is the main equipment for processing large box parts.

[0003] Traditional heavy-duty boring machines rotate the lead screw to make the lead screw nut drive the spindle box to move vertically up and down. When the lead screw is long and the feed speed is fast, the lead screw rotation will produce a large amount of runout, affecting the transmission accuracy. At the same time, due to the long lead screw, the inertia of rotation has a greater impact, and the performance requirements of the motor are higher. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a vertical feeding mechanism, and its technical solution is as follows:

[0005] A vertical feed mechanism includes a support, a driving part, a transmission assembly, a screw assembly, a column and a working part, the screw assembly includes a screw and a screw nut, the screw nut is rotatably mounted on the screw, the screw is fixed to the column, the driving part is fixed to the support, the driving part is transmission-connected to the screw nut via the transmission assembly, the support is fixed to the working part, the working part is movably mounted on the column, and the axis of the driving part is parallel to the axis of the screw.

[0006] Furthermore, the driving unit includes a driving motor and a reducer, the driving motor and the reducer are drivingly connected, and the reducer is drivingly connected to the lead screw nut through the transmission assembly.

[0007] Furthermore, the transmission assembly includes a first gear and a second gear, the first gear is fixedly connected to the output shaft of the reducer, the second gear is rotatably mounted on the support, and the first gear is transmission-connected to the lead screw nut via the second gear.

[0008] Furthermore, the working part is slidably mounted on the column.

[0009] Furthermore, the working part includes a ram seat and a spindle box, the spindle box is slidably mounted on the ram seat, the ram seat is slidably mounted on the column, and the support is fixed to the ram seat.

[0010] Furthermore, the vertical feeding mechanism also includes a balancing mechanism, which is fixed to the top of the column and provides pulling force to the working part.

[0011] Furthermore, the balancing mechanism includes a rope, a pulley device and a balancing oil cylinder. One end of the rope is fixed to the working part, and the other end is gathered by the balancing oil cylinder through the pulley device.

[0012] Furthermore, the screw assembly is provided with a first fixing member and a second fixing member, the first fixing member is located at the top of the screw, the second fixing member is located at the bottom of the screw, the first fixing member and the second fixing member are fixed to the column, and the end face of the first fixing member and the end face of the second fixing member are perpendicular to each other.

[0013] Furthermore, the first fixing member and the second fixing member are provided with pins, the column is provided with a pin hole, and the pins and the pin holes cooperate with each other.

[0014] Furthermore, a machine tool includes a machine platform, a support, a driving part, a transmission assembly, a screw assembly, a column and a working part, wherein the column is fixed on the machine platform, the screw assembly includes a screw and a screw nut, the screw nut is rotatably mounted on the screw, the screw is fixed to the column, the driving part is fixed to the support, the driving part is transmission-connected to the screw nut via the transmission assembly, the support is fixed to the working part, the working part is movably mounted on the column, and the axis of the driving part is parallel to the axis of the screw.

[0015] The beneficial effect of the utility model is that the lead screw is fixed and the lead screw nut rotates, so that the lead screw nut is fed linearly on the lead screw, driving the support and the working part to move vertically, so that only small-sized parts of the transmission system rotate, and the rotational inertia of the mechanism is greatly reduced, thereby reducing the inertia requirement for the drive motor, and also improving the stability and accuracy of the transmission system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the vertical feeding mechanism of the utility model;

[0017] Figure 2 for Figure 1 A front view of a vertical feed mechanism;

[0018] Figure 3 for Figure 1 Partial structural diagram of the vertical feed mechanism.

[0019] In the figure:

[0020] 1. Column; 2. Support; 3. Driving part; 31. Driving motor; 32. Reducer; 4. Transmission assembly; 41. First gear; 42. Second gear; 5. Screw assembly; 51. Screw; 52. Screw nut; 53. First fixing part; 54. Second fixing part; 6. Working part; 61. Slide seat; 62. Spindle box; 7. Balancing mechanism; 71. Rope; 72. Pulley device; 73. Balancing cylinder. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / and" used herein includes any and all combinations of one or more related listed items.

[0023] The following is an example and combined with the attached Figure 1-3 The utility model is described in further detail.

[0024] A vertical feeding mechanism comprises a column 1, a support 2, a driving part 3, a transmission assembly 4, a lead screw assembly 5, a working part 6 and a balancing mechanism 7.

[0025] A machine tool comprises a machine platform, wherein the machine platform serves as a working platform of a vertical feeding mechanism, and a column 1 is fixed on the machine platform.

[0026] The driving part 3 includes a driving motor 31 and a reducer 32 . The driving motor 31 and the reducer 32 are mounted on the support 2 , and the driving motor 31 and the reducer 32 are in driving connection.

[0027] The transmission assembly 4 is provided with a first gear 41 and a second gear 42 . The first gear 41 is fixedly connected to the output shaft of the reducer 32 , and the second gear 42 is rotatably mounted on the support 2 .

[0028] The lead screw assembly 5 includes a lead screw 51, a lead screw nut 52, a first fixing member 53 and a second fixing member 54. The lead screw nut 52 is rotatably mounted on the lead screw 51. The first fixing member 53 is arranged at the top of the lead screw 51, and the second fixing member 54 is arranged at the bottom of the lead screw 51. The end face of the first fixing member 53 and the end face of the second fixing member 54 are perpendicular, and are used to reinforce the lead screw 51. The first fixing member 53 and the second fixing member 54 are provided with pins, and the column 1 is provided with pinholes that match the pins, so as to facilitate the installation of the lead screw 51.

[0029] The working part 6 includes a ram seat 61 and a spindle box 62 , and the spindle box 62 is slidably mounted on the ram seat 61 .

[0030] The balancing mechanism 7 includes a rope 71, a pulley device 72 and a balancing oil cylinder 73. The balancing mechanism 7 is used to provide a pulling force to the working part 6 to assist the working part 6 to move up and down. Specifically, in this embodiment, the rope 71 is a steel strand.

[0031] Installation process of the vertical feeding mechanism of the utility model:

[0032] Fix the column 1 to the machine platform.

[0033] The first fixing member 53 is fixed to the top surface of the column 1, and the second fixing member 54 is fixed to the side surface of the column 1. The first fixing member 53 and the second fixing member 54 support the screw rod 51 and fix the screw rod 51 to the column 1. The first gear 41 is connected to the screw nut 52 through the second gear 42. Specifically, in this embodiment, the number of teeth of the first gear 41 is smaller than the number of teeth of the second gear 42, and the number of teeth of the second gear 42 is smaller than the number of teeth of the screw nut 52, so as to increase the output torque.

[0034] The axis of the driving motor 31 is parallel to the axis of the lead screw 51 .

[0035] The support 2 is fixed to the ram seat 61, the spindle box 62 is slidably installed on the ram seat 61, the ram seat 61 is slidably installed on the column 1, the pulley device 72 is installed on the top of the column 1, one end of the rope 71 is fixedly connected to the ram seat 61, and the other end is gathered by the balance cylinder 73 through the pulley device 72.

[0036] The use process of the vertical feeding mechanism of the utility model:

[0037] When the boring tool is fed, the driving motor 31 is started, and the first gear 41 drives the screw nut 52 to rotate through the second gear 42, so that the screw nut 52 feeds linearly on the screw 51, driving the support 2 and the working part 6 to feed linearly, and the working part 6 reaches the working height; when the boring tool needs to be moved left and right, the spindle box 62 is controlled to slide left and right on the slide seat 61 to reach the working position.

[0038] The beneficial effect of the utility model lies in that the screw 51 is fixed and the screw nut 52 is rotated, so that the screw nut 52 is fed linearly on the screw 51, driving the support 2 and the working part 6 to move vertically, so that only small-sized parts of the transmission system rotate, and the rotational inertia of the mechanism is greatly reduced, thereby reducing the inertia requirement for the drive motor 31, and also improving the stability and accuracy of the transmission system.

[0039] The above embodiment only expresses one implementation method of the utility model, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, several modifications and improvements can be made, which are equivalent modifications and improvements made to the above embodiment based on the essential technology of the utility model, and all of them belong to the protection scope of the utility model.

Claims

1. A vertical feeding mechanism, comprising a support, a driving part, a transmission assembly, a lead screw assembly, a column and a working part, characterized in that: The screw assembly includes a screw and a screw nut, the screw nut is rotatably mounted on the screw, the screw is fixed to the column, the driving part is fixed to the support, the driving part is transmission-connected to the screw nut via the transmission assembly, the support is fixed to the working part, the working part is movably mounted on the column, and the axis of the driving part is parallel to the axis of the screw.

2. The vertical feeding mechanism according to claim 1, characterized in that: The driving unit includes a driving motor and a reducer, the driving motor and the reducer are drivingly connected, and the reducer is drivingly connected to the lead screw nut through the transmission assembly.

3. The vertical feeding mechanism according to claim 2, characterized in that: The transmission assembly includes a first gear and a second gear, the first gear is fixedly connected to the output shaft of the reducer, the second gear is rotatably mounted on the support, and the first gear is transmission-connected to the lead screw nut via the second gear.

4. The vertical feeding mechanism according to claim 1, characterized in that: The working part is slidably mounted on the column.

5. The vertical feeding mechanism according to claim 4, characterized in that: The working part comprises a ram seat and a spindle box, the spindle box is slidably mounted on the ram seat, the ram seat is slidably mounted on the column, and the support is fixed to the ram seat.

6. The vertical feeding mechanism according to claim 1, characterized in that: The vertical feeding mechanism also includes a balancing mechanism, which is fixed to the top of the column and provides a pulling force to the working part.

7. The vertical feeding mechanism according to claim 6, characterized in that: The balancing mechanism comprises a rope, a pulley device and a balancing oil cylinder. One end of the rope is fixed to the working part, and the other end is gathered by the balancing oil cylinder through the pulley device.

8. The vertical feeding mechanism according to claim 1, characterized in that: The screw assembly is provided with a first fixing member and a second fixing member, wherein the first fixing member is located at the top of the screw and the second fixing member is located at the bottom of the screw, the first fixing member and the second fixing member are fixed to the column, and the end face of the first fixing member and the end face of the second fixing member are perpendicular to each other.

9. The vertical feeding mechanism according to claim 8, characterized in that: The first fixing member and the second fixing member are provided with pins, the column is provided with a pin hole, and the pins and the pin holes match each other.

10. A machine tool, comprising a machine platform, characterized in that: It also includes a support, a driving part, a transmission assembly, a screw assembly, a column and a working part, the column is fixed on the machine platform, the screw assembly includes a screw and a screw nut, the screw nut is rotatably mounted on the screw, the screw is fixed to the column, the driving part is fixed to the support, the driving part is transmission-connected to the screw nut through the transmission assembly, the support is fixed to the working part, the working part is movably mounted on the column, and the axis of the driving part is parallel to the axis of the screw.

Images