Internal transmission tool changing mechanism of multi-head tapping machine

Abstract

The utility model discloses an internal transmission tool changing mechanism of a multi-head tapping machine and relates to the technical field of machining equipment. Comprising a base which is arranged on a rack in a vertically liftable manner; the inner gear ring is rotatably arranged on the base; the rotating sleeve is detachably and fixedly connected with the inner gear ring; a sealing cover which is detachably and fixedly connected is arranged on the outer side; a switching gear meshed with the inner tooth part of the inner gear ring is arranged in the rotating sleeve, and the switching gear is rotatably arranged on the base and driven by a first motor to rotate; the bevel gear wheel is rotatably arranged on the base, is located in the middle of the rotating sleeve and is driven by a motor II to rotate; the utility model solves the problem that the later working precision and the service life are influenced due to accelerated abrasion of the gear caused by dust collection at present.

Description

Technical Field

[0001] The utility model relates to the technical field of processing equipment, in particular to an internal transmission tool changing mechanism of a multi-head tapping machine. Background Art

[0002] Since the development of the sheet metal industry to date, the flat processing and forming technology is relatively mature. At present, both CNC turret punches and laser cutting machines can meet the processing of complex plane hole positions. However, in the electronics and IT industries, many customer workpieces have tapping requirements. At present, the main processing method is still to process the bottom holes by sheet metal processing equipment and then perform tapping operations manually. In addition, the single-head tapping die designed by Wilson in the United States can be integrally installed in the turntable of a CNC turret punch, but this device is very expensive and has too many application limitations. Each die can only use one specification of tap and cannot meet the diverse needs of users.

[0003] In view of the above problems, in the existing patent literature, such as "A multi-axis tapping machine" authorized and announced on May 28, 2019, includes a fixed seat and a rotating motor support. A linear guide rail is vertically arranged at the upper end of the fixed seat. The rotating motor support is slidably connected to the linear guide rail through a slider. A driving device for driving the rotating motor support to move up and down is arranged at the upper end of the linear guide rail. A large gear is sleeved at the front end of the rotating motor support. A crossed roller bearing is arranged between the large gear and the rotating motor support radially. A rotating motor is arranged on the rotating motor support. A large bevel gear is installed on the output shaft of the rotating motor. A servo motor is arranged above the rotating motor support. A small gear meshing with the large gear is installed on the output shaft of the servo motor. A plurality of tapping tool holders are evenly distributed on the front end face of the large gear. A small bevel gear meshing with the large bevel gear is arranged at the upper end of the tapping tool holder. By setting multiple axes and installing different specifications of taps, different working conditions requirements can be met, and the application range and working efficiency can be improved. Since the large and small gears driving a plurality of tapping tool holders to rotate are exposed, the dust in the working site is likely to fall on the large and small gears of the external transmission. Especially when lubricating grease is applied on them, it is easier to accumulate dust and cause accelerated wear of the gears, affecting the later working accuracy and working life. Therefore, how to improve the working life and working accuracy of the tapping machine during long-term use is a technical problem that needs to be solved urgently. Summary of the Utility Model

[0004] The utility model aims at the above problems and provides an internal transmission tool changing mechanism of a multi-head tapping machine with a delicate structure, which improves the working life and working accuracy of the tapping machine.

[0005] The technical solution of the utility model is as follows:

[0006] The internal transmission tool changing mechanism of a multi-head tapping machine includes:

[0007] A base, which is vertically liftable on the frame;

[0008] Internal gear ring, rotatably arranged on the base;

[0009] Rotating sleeve, detachably and fixedly connected to the internal gear ring; a cover is detachably and fixedly connected to the outside; a switching gear meshing with the internal tooth part of the internal gear ring is arranged inside the rotating sleeve, the switching gear is rotatably arranged on the base, and is driven to rotate by a first motor;

[0010] Large bevel gear, rotatably arranged on the base, located in the middle of the rotating sleeve, and driven to rotate by a second motor;

[0011] Transition seat, fixedly arranged on the base, and a small bevel gear meshing with the large bevel gear is arranged at the top; the transition shaft of the small bevel gear extends downward into the air chamber of the transition seat and is connected to the piston sleeve in the air chamber. Through the up and down telescoping of the piston sleeve, the connection between the bottom insert block of the piston sleeve and the slot on the tapping tool handle assembly is controlled.

[0012] Specifically, the internal gear ring is rotatably arranged on the base through a bearing.

[0013] Specifically, the rotating sleeve is in an annular shape.

[0014] Specifically, the switching gear is located at the side of the large bevel gear, near the top position of the internal teeth of the internal gear ring.

[0015] Specifically, a plurality of the tapping tool handle assemblies are evenly arranged on the rotating sleeve.

[0016] Specifically, the switching gear is rotatably arranged on the base through a first motor.

[0017] Specifically, the large bevel gear is rotatably arranged on the base through a second motor.

[0018] The utility model includes a base, an internal gear ring, a rotating sleeve and a large bevel gear; the internal gear ring is rotatably arranged on the base; the rotating sleeve is detachably and fixedly connected to the internal gear ring; a cover is detachably and fixedly connected to the outside; a switching gear meshing with the internal tooth part of the internal gear ring is arranged inside the rotating sleeve, and the switching gear is rotatably arranged on the base; through the design of the internal gear ring and the switching gear structure in this case, the built-in of the tap rotation switching mechanism is realized, and all are incorporated into the closed rotating sleeve. The transmission structure is more compact and beautiful, and the internal lubricating grease will not get dusty and affect the service life, solving the problem that the current dust collection causes accelerated wear of the gears, affecting the later working accuracy and working life. Description of the Drawings

[0019] Figure 1 is the three-dimensional structural schematic diagram of the utility model Figure 1 ;

[0020] Figure 2is a schematic three-dimensional structure of the present utility model Figure 2 ;

[0021] Figure 3 is a schematic structural diagram of the meshing state between the internal gear ring and the switching gear;

[0022] Figure 4 is a schematic cross-sectional structural diagram of the transition seat and the tapping tool handle assembly;

[0023] Figure 5 is a schematic structural diagram of the oil injection block;

[0024] In the figure, 100 is the base, 110 is the switching gear,

[0025] 200 is the internal gear ring,

[0026] 300 is the large bevel gear,

[0027] 400 is the transition seat, 410 is the small bevel gear, 420 is the piston sleeve, and 421 is the insert block,

[0028] 500 is the tapping tool handle assembly, 600 is the rotating sleeve, 700 is the oil injection block, 710 is the oil passage, and 800 is the linear telescopic mechanism. Specific embodiments

[0029] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals throughout indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] The following refers to Figures 1-5 describe the present utility model;

[0033] The internal transmission and tool changing mechanism of a multi-head tapping machine includes:

[0034] A base 100, which is vertically liftable and arranged on the frame;

[0035] An internal gear ring 200, which is rotatably arranged on the base 100;

[0036] A rotating sleeve 600, which is detachably and fixedly connected to the internal gear ring 200; a cover is detachably and fixedly connected to the outside; a switching gear 110 meshing with the internal tooth part of the internal gear ring 200 is arranged inside the rotating sleeve 600, and the switching gear 110 is rotatably arranged on the base 100 and driven to rotate by a first motor;

[0037] A large bevel gear 300, which is rotatably arranged on the base 100, located in the middle of the rotating sleeve 600, and driven to rotate by a second motor;

[0038] A transition seat 400, which is fixedly arranged on the base 100, and a small bevel gear 410 meshing with the large bevel gear 300 is arranged on the top; the transition shaft of the small bevel gear 410 extends downward into the air chamber of the transition seat 400 and is connected to a piston sleeve 420 in the air chamber. Through the up and down telescoping of the piston sleeve 420, the connection between the bottom insert block 421 of the piston sleeve 420 and the slot on the tapping tool handle assembly 500 is controlled. The internal structures of the transition seat 400 and the tapping tool handle assembly 500 (the tapping tool handle assembly 500 includes a bushing, a tapping tool handle, a tap, etc.) in this case are the same as those in the prior art, and the specific details will not be elaborated here.

[0039] Through the design of the internal gear ring 200 and the switching gear 110 in this case, the built-in of the tap rotation switching mechanism is realized, and all are incorporated into the closed rotating sleeve. The transmission structure is more compact and beautiful, and the internal lubricating grease will not get dusty and affect the service life, solving the problem that the current dust collection causes accelerated wear of the gears, affecting the later working accuracy and working life.

[0040] The internal gear ring 200 is rotatably arranged on the base 100 through a bearing.

[0041] The rotating sleeve 600 is in an annular shape.

[0042] The switching gear 110 is located at the side of the large bevel gear 300, near the top position of the internal teeth of the internal gear ring 200.

[0043] A plurality of the tapping tool shank assemblies 500 are evenly arranged on the rotating sleeve 600.

[0044] An oil injection block 700 is provided at the side of the large bevel gear 300;

[0045] The oil injection block 700 is in an arc-shaped structure and is arranged on the base 100; a plurality of nozzles are provided on its front side and are communicated with the oil passage 710 inside the oil injection block 700;

[0046] An oil inlet communicated with the oil passage 710 is provided on the oil injection block 700. The oil inlet is connected to a lubricating oil pump through an oil pipe to lubricate the corresponding teeth inside the internal gear ring 200 regularly, improving the service life of the components; when the lubricating oil is sprayed onto the large bevel gear 300, the lubricating oil dripping downward lubricates the lower bevel gear 410 and the tooth part of the internal gear ring 200.

[0047] The rear side of the oil injection block 700 is connected to a linear telescopic mechanism 800 to control the distance between the nozzle and the large bevel gear 300;

[0048] The cylinder body of the linear telescopic mechanism 800 is fixedly arranged on the base 100, and the oil injection block 700 is detachably and fixedly connected to its piston rod end.

[0049] The linear telescopic mechanism 800 includes a cylinder, an oil cylinder or an electric push rod.

[0050] Regarding the content disclosed in this case, the following points need to be explained:

[0051] (1). The attached drawings of the embodiments disclosed in this case only involve the structures related to the embodiments disclosed in this case, and other structures can refer to the general design;

[0052] (2). Without conflict, the embodiments disclosed in this case and the features in the embodiments can be combined with each other to obtain new embodiments;

[0053] The above is only the specific implementation manners disclosed in this case, but the protection scope of this disclosure is not limited thereto. The protection scope disclosed in this case shall be subject to the protection scope of the claims.

Claims

1. The internal transmission tool changing mechanism of the multi-head tapping machine is characterized by: include: A base (100) is arranged on the frame so as to be able to be raised and lowered; An inner gear ring (200) rotatably disposed on the base (100); A rotating sleeve (600) is detachably fixedly connected to the inner gear ring (200); a detachably fixedly connected cover is provided on the outer side; a switching gear (110) is provided inside the rotating sleeve (600) and meshes with the inner teeth of the inner gear ring (200); the switching gear (110) is rotatably arranged on the base (100); A large bevel gear (300) is rotatably disposed on the base (100), is located in the middle of the rotating sleeve (600), and is driven to rotate by motor 2; A transition seat (400) is fixedly arranged on the base (100), and a small bevel gear (410) is provided on the top thereof, which is meshed with the large bevel gear (300); a transition shaft of the small bevel gear (410) extends downward into the air cavity of the transition seat (400) and is connected to a piston sleeve (420) in the air cavity; and the connection between an insert block (421) at the bottom of the piston sleeve (420) and a slot on the tapping handle assembly (500) is controlled by the upward and downward extension of the piston sleeve (420).

2. The internal transmission tool changing mechanism of the multi-head tapping machine according to claim 1, characterized in that: The inner gear ring (200) is rotatably arranged on the base (100) via a bearing.

3. The internal transmission tool changing mechanism of the multi-head tapping machine according to claim 1, characterized in that: The rotating sleeve (600) is in the shape of a circular ring.

4. The internal transmission tool changing mechanism of the multi-head tapping machine according to claim 1, characterized in that: The switching gear (110) is located on the side of the large bevel gear (300), close to the top position of the inner teeth of the inner gear ring (200).

5. The internal transmission tool changing mechanism of the multi-head tapping machine according to claim 1, characterized in that: A plurality of the tapping tool handle assemblies (500) are evenly distributed on the rotating sleeve (600).

6. The internal transmission tool changing mechanism of the multi-head tapping machine according to claim 1, characterized in that: The switching gear (110) is rotatably arranged on the base (100) via a motor 1.

7. The internal transmission tool changing mechanism of the multi-head tapping machine according to claim 1, characterized in that: The large bevel gear (300) is rotatably arranged on the base (100) via a second motor.

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