CN221774004U

CN221774004U - A positioning mechanism for CNC machine tools

Info

Publication number: CN221774004U
Application number: CN202323433317.8U
Authority: CN
Inventors: 张建龙
Original assignee: Hangzhou Jiayin Machinery Co ltd
Current assignee: Hangzhou Jiayin Machinery Co ltd
Priority date: 2023-12-16
Filing date: 2023-12-16
Publication date: 2024-09-27
Anticipated expiration: 2033-12-16

Abstract

The utility model discloses a positioning mechanism for a CNC (computerized numerical control) machine tool, which comprises a fixed table, wherein the bottom of the fixed table is fixedly connected with a cam, the cam is perpendicular to the fixed table, two driven wheels are connected below the cam, the two driven wheels are symmetrically arranged, the symmetry line of the two driven wheels is consistent with that of the cam, a driving wheel is connected below the two driven wheels, the driving wheel is commonly connected with the two driven wheels, the driving wheel, the driven wheels and the cam are all in meshed connection through gears and are all in rotary connection in a shell, an inching motor is connected on the driving wheel, and the inching motor is fixedly connected on the shell. The positioning mechanism adjusts the inclination angle of the fixed table through the engagement of the long gear and the cam gear which are symmetrically arranged, so that the rotation of the fixed table is more balanced and stable.

Description

Positioning mechanism for CNC numerical control machine tool

Technical Field

The utility model belongs to the technical field of positioning mechanisms, and particularly relates to a positioning mechanism for a CNC (computerized numerical control) machine tool.

Background

The numerical control machine tool automatically processes the processed parts according to a processing program which is programmed in advance, and writes a processing process route, a process parameter, a movement track, a displacement amount, a cutting parameter and an auxiliary function of the parts into a processing program list according to an instruction code and a program format which are specified by the numerical control machine tool, and then records the content in the program list on a control medium, and then inputs the content into a numerical control device of the numerical control machine tool, so that the numerical control machine tool is instructed to process the parts.

Among the prior art, chinese patent CN202222553265.7 discloses a positioning mechanism for CNC digit control machine tool, including the plate body, the top of plate body and the bottom fixed connection of lug, the preceding terminal surface of lug rotates with the rear end below of riser through the round pin axle and is connected, the top of riser and the bottom fixed connection of diaphragm, the top of diaphragm is equipped with electric putter two, through diaphragm, bent plate, electric putter two, splint, plate body, lug, riser, rubber pad, casing and adjusting structure's cooperation, electric putter two drives splint inwards to move, and splint drive the rubber pad inwards to move, and then realize fixing the location to the part, and electric putter one drives the square and reciprocates, and the square drives the kicking block and reciprocates, and the kicking block drives the annular plate and rotates, and then realizes the rotation to the part, is convenient for carry out angle adjustment to the part after the fixed part that is convenient for carry out different angles's processing, and application scope is wide.

This positioning mechanism has realized carrying out angle modulation to fixed part after accomplishing, but realizes through the hinged joint between lug and the riser that pivoted mode makes the mesa unstable, probably takes place to rock, and this mesa only supports through two unbalanced stress points of perpendicular version in the middle and annular piece, makes the mesa unstable easily, can influence the machining precision of digit control machine tool, consequently, need improve this positioning mechanism further.

Disclosure of utility model

The utility model aims to provide a positioning mechanism for a CNC numerical control machine tool, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a CNC positioning mechanism for digit control machine tool, includes the fixed station, the bottom fixedly connected with cam of fixed station, the cam perpendicular to the fixed station, the below of cam is connected with two from the driving wheel, two from the driving wheel symmetry setting, its symmetry line with the symmetry line of cam is unanimous, two from the below from the driving wheel is connected with a action wheel, the action wheel with two from the common connection of driving wheel. The fixed table, the cam, the driven wheel and the driving wheel form an inclination angle adjusting mechanism of the fixed wheel, the driving wheel is rotated, the driven wheel rotates along with the driving wheel, and the cam is driven by the driven wheel, so that the fixed table is driven to incline.

Further, the driving wheel is connected with an inching motor. The inching motor is used for providing power for the rotation of the driving wheel and realizing the semi-automation of the adjustment of the inclination angle of the positioning mechanism.

Further, a shell is arranged below the fixed table, the driving wheel, the driven wheel and the cam are all arranged in the shell and are rotationally connected with the shell, an avoidance gap for avoiding the rotation of the fixed table is formed in the shell, and the inching motor is fixedly connected with the shell. The shell is used as a supporting member of the adjusting mechanism, and the avoidance notch is used for providing space for the rotation of the workbench.

Further, the driving wheel, the driven wheel and the cam are all gears, and the length-diameter ratio of the driving wheel, the driven wheel and the cam is not less than 1. The gear is slender when the length-diameter ratio is large, the gear meshing area is large, and the operation is more stable.

Further, a clamping mechanism is arranged on the fixed table; the clamping mechanism comprises a supporting plate, an inching cylinder, a clamping plate and a rubber plate; the support plate is fixedly connected to the fixing table, the inching cylinder is connected to the support plate, one end of a push rod of the inching cylinder is connected to the clamping plate, and the rubber plate is fixedly connected to the clamping plate; the clamping mechanisms are arranged in pairs and are opposite to each other, and the opening and closing directions of the clamping mechanisms are consistent with the rotating directions of the fixed table. The clamping mechanism is used for clamping objects, and the rubber plate is used for enabling clamping to be stable and firm.

Further, a bottom plate is fixedly connected to the bottom of the shell, and the edge of the bottom plate exceeds the peripheral dimension of the shell. The bottom plate is used for supporting the positioning mechanism and is fixedly connected with the table top of the CNC numerical control machine tool as a fixed part, so that the positioning mechanism can be disassembled.

Compared with the prior art, the utility model has the beneficial effects that:

1. The inclination angle of the fixed table is adjusted through the transmission mode of the cam, the driven wheel and the driving wheel, the support stress of the fixed table is balanced due to the structure of the symmetrically arranged double driven wheels, and the transmission process is stable due to the arrangement of the wide gears.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

FIG. 1 is a front view of the present utility model;

FIG. 2 is a partial cross-sectional view of bitmap 1;

FIG. 3 is a schematic view of a clamping mechanism according to the present utility model;

Fig. 4 is a top view of bitmap 1.

In the figure: 1. a fixed table; 11. a cam; 12. driven wheel; 13. a driving wheel; 2. a housing; 21. avoiding the notch; 3. a bottom plate; 4. a clamping mechanism; 41. a support plate; 42. an inching cylinder; 43. a clamping plate; 44. a rubber plate; 5. inching motor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1, 2 and 4, the technical scheme of the positioning mechanism for the CNC numerical control machine provided by the utility model is as follows:

The utility model provides a CNC positioning mechanism for digit control machine tool, includes fixed station 1, the bottom fixedly connected with cam 11 of fixed station 1, cam 11 perpendicular to fixed station 1, the below of cam 11 is connected with two from driving wheel 12, two from driving wheel 12 symmetry sets up, and two from driving wheel 12 of symmetry setting are for the cam has formed stable support, makes the atress more balanced, its symmetry line with the symmetry line of cam 11 is unanimous. A driving wheel 13 is connected below the two driven wheels 12, the driving wheel 13 is connected with the two driven wheels 12 together, the driving wheel 13 is positioned on the symmetry line, and the driving wheel 13 drives the two driven wheels 12 to rotate. The driving wheel 13 is connected with an inching motor 5, the inching motor 5 is externally connected with an editor, and the rotating angle of the fixed table 1 is directly adjusted through programming, so that the control is accurate. The driving wheel 13, the driven wheel 12 and the cam 11 are all gears, the length-diameter ratio of the driving wheel 13, the driven wheel 12 and the cam 11 is not smaller than 1, and the contact area between the cam 11 and the driven wheel 12 is increased by large and wide gear engagement, so that the inclination stability of the fixed table 1 is increased.

Referring to fig. 2, a housing 2 is disposed below the fixed table 1, the driving wheel 13, the driven wheel 12 and the cam 11 are disposed in the housing 2 and are rotatably connected with the housing 2, an avoidance gap 21 for avoiding rotation of the fixed table 1 is disposed on the housing 2, and the inching motor 5 is fixedly connected with the housing 2. The bottom of the shell 2 is fixedly connected with a bottom plate 3, and the edge of the bottom plate 3 exceeds the peripheral dimension of the shell 2. The bottom plate 3 makes this positioning mechanism detachable, when needing to use inclination, with this positioning mechanism fastening connection on CNC digit control machine tool's workstation, bottom plate 3 uses as fixed border, when not needing, can directly remove this positioning mechanism, facilitate the use.

Referring to fig. 3, a clamping mechanism 4 is arranged above the fixed table 1; the clamping mechanism 4 comprises a supporting plate 41, an inching cylinder 42, a clamping plate 43 and a rubber plate 44; the supporting plate 41 is fixedly connected to the fixing table 1, the inching cylinder 42 is connected to the supporting plate 41, one end of a push rod of the inching cylinder 42 is connected to the clamping plate 43, and the rubber plate 44 is fixedly connected to the clamping plate 43; the two clamping mechanisms 4 are arranged in a pair and opposite to each other, and the opening and closing directions of the clamping mechanisms 4 are consistent with the rotating directions of the fixed table 1.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. Positioning mechanism for CNC digit control machine tool, including fixed station (1), its characterized in that: the bottom fixedly connected with cam (11) of fixed station (1), cam (11) perpendicular to fixed station (1), the below of cam (11) is connected with two from driving wheel (12), two from driving wheel (12) symmetry sets up, its symmetry line with the symmetry line of cam (11) is unanimous, two from driving wheel (12) below is connected with a action wheel (13), action wheel (13) with two from driving wheel (12) are connected jointly.

2. The positioning mechanism for the CNC numerical control machine tool according to claim 1, wherein the driving wheel (13) is connected with a inching motor (5).

3. The positioning mechanism for the CNC numerical control machine tool according to claim 2, wherein a shell (2) is arranged below the fixed table (1), the driving wheel (13), the driven wheel (12) and the cam (11) are all arranged in the shell (2) and are rotationally connected with the shell (2), an avoidance gap (21) for avoiding the rotation of the fixed table (1) is formed in the shell (2), and the inching motor (5) is fixedly connected with the shell (2).

4. A positioning mechanism for a CNC numerical control machine according to claim 3, wherein the driving wheel (13), the driven wheel (12) and the cam (11) are all gears, and the aspect ratio of the three is not less than 1.

5. The positioning mechanism for the CNC numerical control machine tool according to any one of claims 3 to 4, wherein a clamping mechanism (4) is arranged above the fixed table (1);

The clamping mechanism (4) comprises a supporting plate (41), an inching cylinder (42), a clamping plate (43) and a rubber plate (44);

the support plate (41) is fixedly connected to the fixed table (1), the inching cylinder (42) is connected to the support plate (41), one end of a push rod of the inching cylinder (42) is connected to the clamping plate (43), and the rubber plate (44) is fixedly connected to the clamping plate (43);

the two clamping mechanisms (4) are arranged in a pair and opposite mode, and the opening and closing directions of the clamping mechanisms (4) are consistent with the rotating directions of the fixed table (1).

6. The positioning mechanism for a CNC numerical control machine according to claim 5, wherein a bottom plate (3) is fixedly connected to the bottom of the housing (2), and the edge of the bottom plate (3) exceeds the peripheral dimension of the housing (2).