CN216632889U

CN216632889U - Planetary in-mold tapping device

Info

Publication number: CN216632889U
Application number: CN202122588159.8U
Authority: CN
Inventors: 黄剑辉; 郑镇坚
Original assignee: Dongguan Fourocean Machinery Tools Co ltd
Current assignee: Dongguan Fourocean Machinery Tools Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-05-31
Anticipated expiration: 2031-10-27

Abstract

The utility model discloses a planetary type in-mold tapping device which comprises a gear sleeve, a moving block arranged in the gear sleeve, a gear mounting plate arranged in the gear sleeve, a planetary gear set arranged on the gear mounting plate, a screw tap chuck arranged on the moving block and a transmission rod used for connecting the screw tap chuck and the planetary gear set, wherein the gear mounting plate is arranged in the gear sleeve; at least two guide rods arranged along the axial direction of the sleeve are inserted into the moving block and the gear mounting plate, and each guide rod is connected with an external fixed block; the gear sleeve is connected the cooperation with movable block and planetary gear set, and the gear sleeve drives planetary gear set rotatory when rotatory, and then drives the transfer line rotatory, and when the gear sleeve was rotatory, still drive the removal along the motion of gear sleeve axis direction. The utility model integrates the rotary variable-speed transmission and the linear walking motion into the sleeve, so that the structure is more compact, the requirement of miniaturization of the in-mold tapping machine is met, and the use requirement of more in-mold tapping can be met.

Description

Planetary in-mold tapping device

Technical Field

The utility model relates to the field of in-mold tapping, in particular to a planetary in-mold tapping device which is compact in structure and small in size.

Background

The in-mold tapping machine is a common machining device which is applied to a mold and matched with the mold to realize the thread machining of a designated position of a workpiece.

The main purpose and effect of the in-mold tapping device is to convert the vertical driving force of the machine tool into rotary driving, convert the rotary driving into proper rotating speed and torque through the transmission part, and send the suitable rotating speed and torque into the tapping part to drive the tapping part to complete tapping.

In the above working composition, the tapping part needs to complete two actions of downward movement and tapping, so that the two actions are often completed by a matching structure applied by a plurality of gears, the small size of the in-mold tapping machine is restricted to a certain extent, the application range of the in-mold tapping machine is limited, and the in-mold thread processing requirement of small pitch in a small space is difficult to meet.

For example, in the machining of a threaded hole of a motor shell, a die for machining the motor shell is complex in structure and high in value, the machining process reserved for in-die tapping is small in space, and the existing in-die tapping structure cannot meet the requirements of practical application easily.

In summary, there is still a need for a larger improvement in the structure of the existing in-mold tapping device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a planetary type in-mold tapping device which is compact in structure and realizes downward movement and tapping actions by matching a planetary gear with a guide rod.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a planetary type in-mold tapping device comprises a gear sleeve, a moving block arranged in the gear sleeve, a gear mounting plate arranged in the gear sleeve, a planetary gear set arranged on the gear mounting plate, a screw tap chuck arranged on the moving block and a transmission rod used for connecting the screw tap chuck and the planetary gear set; at least two guide rods arranged along the axial direction of the gear sleeve are inserted into the moving block and the gear mounting plate, and each guide rod is connected with an external fixed block; the gear sleeve is connected the cooperation with movable block and planetary gear set, and the gear sleeve drives planetary gear set rotatory when rotatory, and then drives the transfer line rotatory, and when the gear sleeve was rotatory, still drives the movable block and moves along gear sleeve axis direction.

Further, the gear mounting plate is integral with the moving block.

Furthermore, a circle of external transmission gear teeth are arranged outside the gear sleeve, a circle of internal transmission gear teeth matched with the planetary gear set is arranged at the upper part of the inner cylinder of the gear sleeve, and internal threads matched with the moving block are arranged at the lower part of the inner cylinder of the gear sleeve; and the outer wall surface of the moving block is provided with an external thread which is connected and matched with the internal thread.

Furthermore, the planetary gear set is provided with a sun gear positioned in the center and at least one planetary gear arranged beside the sun gear; the planetary gear is used for realizing the transmission between the sun gear and the inner transmission wheel.

When the tapping rotary transmission device is implemented, more than two guide rods form radial limit on the gear mounting plate and the moving block, the gear sleeve is driven to rotate by an external driving gear through the outer gear teeth, the inner gear teeth drive the sun gear to rotate through the planet gear while the inner gear teeth rotate, the sun gear synchronously drives the transmission rod to rotate, and tapping rotary transmission is completed. In addition, when the gear sleeve rotates, the thread at the lower part of the gear sleeve drives the moving block to move, and the tapping downward movement is completed.

The utility model integrates the rotary variable-speed transmission and the linear walking motion into the sleeve, so that the structure is more compact, the requirement of miniaturization of the in-mold tapping machine is met, and the use requirement of more in-mold tapping can be met.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the specification and together with the description, serve to explain the principles of the specification.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view in a top view after the fixed block is removed.

FIG. 3 is a schematic view of the gear sleeve of the present invention.

FIG. 4 is a schematic view of another embodiment of the gear sleeve of the present invention.

Fig. 5 is a schematic structural view of the in-mold tapping machine including the utility model.

Detailed Description

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present embodiment, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present embodiment and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present embodiment.

In the description of the present embodiments, it should also be noted that the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically stated or limited. The specific meanings of the above terms in the present embodiment can be understood by those of ordinary skill in the art according to specific situations.

Example (b):

fig. 5 shows an exemplary structure of an in-mold tapping machine including the structure of the present invention, which includes an upper plate 1, a machine plate 2 aligned with and engaged with the upper plate 1, a transmission gear set 3 installed in the machine plate 2, a transmission nut 4 installed in the machine plate 1 and engaged with the transmission gear set 3, a transmission screw 5 fixed to the upper plate 1 and inserted into the transmission nut 4 to be engaged therewith, and a planetary tapping device 6 installed on the machine plate 2 and engaged with the transmission gear set 3.

A nitrogen spring 7 is arranged between the upper plate 1 and the machine plate 2, and the spring 7 is used for resetting after the upper plate 1 and the machine plate 2 are compressed.

In order to realize downward positioning and improve tapping precision, the machine plate 2 is also provided with a positioning guide pillar 8.

Fig. 1 to 4 show a specific exemplary structure of a planetary tapping apparatus, including a gear sleeve 601, a gear mounting plate 602 mounted in the gear sleeve 601, a planetary gear set mounted on the gear mounting plate 602, a moving block 603 mounted in the gear sleeve 601, a tap chuck 604 mounted on the moving block 603, and a driving rod 605 for connecting the tap chuck 604 with the planetary gear set; a tap 606 is clamped on the tap chuck 604; the gear mounting plate 602 is mounted on the moving block 603 and is connected with the moving block 603 into a whole; three guide rods 607 arranged along the axial direction of the sleeve of the moving block 603 are inserted into the moving block 603 and the gear mounting plate 602, and each guide rod 607 is connected with an external fixed block 608; the gear sleeve 601 is connected and matched with the moving block 603 and the planetary gear set.

3-4 show that the gear sleeve 601 is externally provided with a ring of external transmission gear teeth 609, the upper part of the inner cylinder of the gear sleeve 601 is provided with a ring of internal transmission gear teeth 610 cooperating with the planetary gear set, and the lower part is provided with an internal thread 611 cooperating with the moving block 603; the outer wall surface of the moving block 603 is provided with an external thread which is connected and matched with the internal thread 611. The planetary gear set has a central sun gear 612, a large planet gear 613 arranged beside the sun gear 612, and a small planet gear 614 connected with and matched with the large planet gear 613, wherein the small planet gear 614 is meshed with the inner transmission gear 610 for transmission.

The foregoing description of the embodiments of the present specification has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the application is defined by the appended claims.

Claims

1. The utility model provides a planetary type tapping device in mould which characterized in that: the automatic tapping machine comprises a gear sleeve (601), a moving block (603) installed in the gear sleeve (601), a gear mounting plate (602) installed in the gear sleeve (601), a planetary gear set installed on the gear mounting plate (602), a tapping chuck (604) installed on the moving block (603) and a transmission rod (605) used for connecting the tapping chuck (604) with the planetary gear set; at least two guide rods (607) arranged along the axial direction of the gear sleeve (601) are inserted into the moving block (603) and the gear mounting plate (602), and each guide rod (607) is connected with an external fixed block (608); the gear sleeve (601) is connected and matched with the moving block (603) and the planetary gear set, the planetary gear set is driven to rotate when the gear sleeve (601) rotates, then the transmission rod (605) is driven to rotate, and the moving block (603) is driven to move along the axis direction of the gear sleeve (601) when the gear sleeve (601) rotates.

2. The planetary in-mold tapping device according to claim 1, wherein: the gear mounting plate (602) is integral with the moving block (603).

3. The planetary in-mold tapping device according to claim 1, wherein: a circle of external transmission gear teeth (609) are arranged outside the gear sleeve (601), a circle of internal transmission gear teeth (610) matched with the planetary gear set is arranged at the upper part of an inner cylinder of the gear sleeve (601), and an internal thread (611) matched with the moving block (603) is arranged at the lower part of the inner cylinder of the gear sleeve (601); and an external thread which is connected and matched with the internal thread (611) is arranged on the outer wall surface of the moving block (603).

4. The planetary in-mold tapping device according to claim 1, wherein: the planetary gear set is provided with a sun gear (612) positioned at the center and at least one planetary gear arranged beside the sun gear; the planetary gear is used for realizing the transmission between the sun gear (612) and the inner transmission gear teeth (610).