Tapping device for injection molded part

Abstract

The utility model discloses an injection-molded part tapping device which comprises a mounting base and further comprises a rotary driving assembly fixed to the upper portion of the mounting base, the driving end of the rotary driving assembly is fixedly connected with an insertion pipe, the insertion pipe rotates under the action of the rotary driving assembly, and a tapping rod used for being arranged in an injection-molded part is movably connected to the lower portion of the insertion pipe in an inserted mode. An inserting pipe is arranged on the mounting base, an inserting groove matched with the tapping rod is formed in the inserting pipe, the tapping rod is driven by the inserting pipe to conduct rotary tapping operation, a gas flow channel is formed in the tapping rod, and a gas base used for being connected with an external gas suction source is fixedly mounted on the upper portion of the mounting base and movably penetrates through the tapping rod. When tapping is carried out, the mechanical arm controls the inserting pipe to be connected with the tapping rod in an inserted mode, and at the moment, the rotation driving assembly is started to control the inserting pipe to rotate; and the air pipe is connected with the air pump, so that chippings generated during tapping of the tapping rod can be absorbed, integrated cleaning operation is carried out, and workers do not need to clean the chippings in the next stage under flowing water.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding processing technology, and in particular relates to a tapping device for injection molding parts. Background Technology

[0002] Tapping is a method of threading injection molded parts, primarily used to achieve threaded connections between components. Tapping methods include direct-form threading, manual tapping, and automated tapping equipment. Direct-form threading is suitable for simple threads, while post-processing tapping is used for higher precision requirements or subsequent corrections. The quality of tapping significantly impacts the assembly and performance of injection molded parts; therefore, the appropriate tapping process must be selected based on material properties and usage requirements.

[0003] However, traditional techniques have some problems: when tapping, traditional tapping devices will accumulate plastic residue inside the thread groove, which requires special cleaning afterwards, making the operation relatively complicated. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a tapping device for injection molded parts, which solves the problem that traditional tapping devices accumulate plastic residue inside the thread groove during tapping.

[0005] This utility model is implemented as follows: a tapping device for injection molded parts includes a mounting base and a rotary drive assembly fixed on the upper part of the mounting base. A tube is fixedly connected to the drive end of the rotary drive assembly. The tube rotates under the influence of the rotary drive assembly. A tapping rod for internal insertion into the injection molded part is movably connected to the lower part of the tube. A slot matching the tapping rod is provided inside the tube. The tapping rod rotates under the drive of the tube to perform tapping operations. A gas flow channel is provided inside the tapping rod. An air seat for connecting to an external air intake source is fixedly installed on the upper part of the mounting base. The air seat is movably connected to the tapping rod.

[0006] As a preferred embodiment of the present invention, the rotary drive assembly includes a rotary motor, which is fixedly installed in the mounting base, and a rotary gear is fixedly connected to the output end of the rotary motor.

[0007] As a preferred embodiment of this invention, a rotating gear ring that meshes with the rotating gear is fixed to the upper part of the insertion tube, and the insertion tube is rotatably installed inside the mounting base.

[0008] As a preferred embodiment of the present invention, the tapping device further includes a lifting assembly, which includes a lifting motor. The lifting motor is fixedly installed inside the mounting base, and a lifting gear is fixedly connected to the output end of the lifting motor.

[0009] In a preferred embodiment of this invention, a screw is rotatably mounted on the lower part of the gas seat. The screw is hollow and communicates with the mounting base. A lifting gear ring that meshes with the lifting gear is fixed on the upper part of the screw, and the tapping rod is screwed to the lower part of the screw.

[0010] In a preferred embodiment of this invention, the tapping rod includes a sliding plate, the lower part of the insert is movably inserted into the sliding plate, and the lower part of the screw is movably screwed into the sliding plate.

[0011] As a preferred embodiment of this utility model, the slide plate has grooves on both sides, and a rotating plate is slidably installed inside the grooves of the slide plate. An arc-shaped tapping base plate is rotatably installed on the side of the rotating plate away from the slide plate. When the slide plate is fully raised, the two tapping base plates move closer together, and the lower part of the slide plate makes movable contact with the pad.

[0012] This invention involves mounting a mounting base on a robotic arm during tapping. The robotic arm aligns the insertion tube with the center of the tapping rod and inserts it. At this point, the rotation drive assembly is activated, controlling the insertion tube to rotate. The tapping rod then rotates and is withdrawn from the injection molded part. Since the tapping rod is placed in the injection molded part during injection, only some plastic debris is produced during the rotation and withdrawal process. This reduces the waste of injection molding material and facilitates the cleaning of the screw holes in the injection molded part. Furthermore, to avoid the need for a second cleaning process for the screw holes, which reduces efficiency, an air seat is integrated into the mounting base. This air seat is connected to an air pump via an air pipe, allowing the debris generated during tapping to be absorbed and cleaned in an integrated manner, eliminating the need for workers to clean the debris in the next stage of the production line. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the tapping rod structure provided in an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the lifting component structure provided in an embodiment of the present utility model;

[0016] Figure 4 This is a schematic diagram of the rotary drive assembly structure provided in an embodiment of the present invention.

[0017] In the diagram: 1. Mounting base; 2. Lifting assembly; 3. Rotary drive assembly; 4. Insert tube; 5. Tapping rod; 6. Gas seat;

[0018] 201. Lifting motor; 202. Lifting gear; 203. Lifting gear ring; 204. Screw;

[0019] 301. Rotary motor; 302. Rotary gear; 303. Rotary gear ring;

[0020] 501, Slide board; 502, Rotary board; 503, Curved tapping base plate; 504, Gasket. Detailed Implementation

[0021] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0022] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] like Figures 1 to 4 As shown in the figure, the present invention provides a tapping device for injection molded parts, including a mounting base 1, and further including: a rotary drive assembly 3 fixed on the upper part of the mounting base 1, a tube 4 fixedly connected to the drive end of the rotary drive assembly 3, the tube 4 being rotated by the rotary drive assembly 3, a tapping rod 5 for being built into the injection molded part being movably inserted into the lower part of the tube 4, wherein the tube 4 has a slot that matches the tapping rod 5, the tapping rod 5 is driven by the tube 4 to perform a rotating tapping operation, wherein the tapping rod 5 has a gas flow channel inside, and an air seat 6 for connecting to an external air intake source is fixedly installed on the upper part of the mounting base 1, the air seat 6 being movably connected to the tapping rod 5.

[0024] The above-mentioned tapping device for injection molded parts involves placing the tapping rod 5 in the injection mold during injection molding, thereby connecting the screw hole position of the molded injection molded part to the tapping rod 5.

[0025] During tapping, the mounting base 1 is installed on the robotic arm. The robotic arm controls the insertion tube 4 to align with the center of the tapping rod 5 and inserts the tapping rod 5. At this time, the rotation drive assembly 3 is activated to control the insertion tube 4 to rotate. The tapping rod 5 is then rotated out of the injection molded part. Since the tapping rod 5 is placed in the injection molded part during injection, only some plastic debris will be produced when it is rotated out. This reduces the waste of injection molding material and makes it easier to clean the screw holes of the injection molded part.

[0026] Furthermore, to avoid reducing efficiency by requiring a second cleaning process for the screw holes, an air seat 6 is integrated into the mounting base 1. It is connected to an air pump via an air pipe, which can absorb the debris generated during tapping and perform integrated cleaning operations, eliminating the need for workers to clean the debris in the next stage of the production line.

[0027] In this embodiment, the rotary drive assembly includes a rotary motor 301, which is fixedly installed in the mounting base 1. A rotary gear 302 is fixedly connected to the output end of the rotary motor 301. A rotary gear ring 303, which meshes with the rotary gear 302, is fixed to the upper part of the insertion tube 4, and the insertion tube 4 is rotatably installed inside the mounting base 1.

[0028] When rotating the insertion tube 4, the rotary motor 301 is driven first. The rotary motor 301 controls the rotary gear 302 to drive the rotary gear ring 303 to rotate, thereby completing the drive of the insertion tube 4. After the insertion tube 4 is inserted into the tapping rod 5, it can drive the tapping rod 5 to rotate, and cooperate with the robotic arm to remove it to complete the tapping operation.

[0029] In this embodiment, the tapping device further includes a lifting assembly 2, which includes a lifting motor 201. The lifting motor 201 is fixedly installed inside the mounting base 1, and a lifting gear 202 is fixedly connected to the output end of the lifting motor 201. A screw 204 is rotatably installed on the lower part of the gas seat 6. The screw 204 is hollow and communicates with the mounting base 1. A lifting gear ring 203, which meshes with the lifting gear 202, is fixed on the upper part of the screw 204, and a tapping rod 5 is screwed to the lower part of the screw 204.

[0030] To achieve lifting control of the tapping rod 5, the lifting motor 201 is started. The lifting motor 201 drives the lifting gear 202 to rotate, which in turn drives the lifting gear ring 203 to drive the screw 204 to rotate. When the production tube is inserted, the screw tube is connected to the tapping rod 5 and the air seat 6 respectively to suck out the waste material. When the screw 204 rotates, the tapping rod 5 is controlled to move around the screw 204 as the moving axis.

[0031] In another embodiment, the tapping rod 5 includes a sliding plate 501, with the lower part of the insert 4 movably inserted into the sliding plate 501, and the lower part of the screw 204 movably screwed into the sliding plate 501. Slots are provided on both sides of the sliding plate 501, and a rotating plate 502 is slidably installed inside the slots of the sliding plate 501. An arc-shaped tapping base plate 503 is rotatably installed on the side of the rotating plate 502 away from the sliding plate 501. When the sliding plate 501 is fully raised, the two tapping base plates move closer together, and the lower part of the sliding plate 501 movably contacts the pad 504.

[0032] To avoid damaging the threaded holes of the injection molded part when rotating the tapping rod 5, since the tapping rod 5 is fixed in the injection molded part;

[0033] The tapping rod 5 is divided into a sliding plate 501 and two arc-shaped tapping base plates 503. During the injection molding of the injection molded part, a shim 504 is placed at the end of the sliding rod to prevent the injection material from flowing into the screw hole of the sliding plate 501. After injection molding, the outside of the sliding plate 501 and the two arc-shaped tapping base plates 503 are adhered to the screw hole position of the injection molded part. At this time, the robotic arm controls the mounting seat 1 to approach the tapping rod 5, so that the screw 204 can be screwed to the sliding plate 501, thereby controlling the sliding plate 501 to be pulled away from the two arc-shaped tapping base plates 503. When the sliding plate 501 is completely pulled away, the two arc-shaped tapping base plates 503 move closer under the pull of the rotating plate 502, and then slightly separate from the screw hole of the injection molded part. At this time, the screw 204 flips and controls the sliding plate 501 to return to its original position, so that the two arc-shaped tapping base plates 503 are in contact with the screw hole of the injection molded part. Since the sliding plate 501 is not tapped, the insertion tube 4 is driven to rotate again, and then taps at the screw hole position of the injection molded part which already has guide lines.

[0034] The working principle of this utility model:

[0035] During injection molding, the tapping rod 5 is placed in the injection mold, and the screw hole of the molded part is connected to the tapping rod 5. During tapping, the mounting base 1 is mounted on the robotic arm, and the robotic arm controls the insertion tube 4 to align with the center of the tapping rod 5 and inserts the tapping rod 5. At this time, the rotary drive assembly 3 is activated, controlling the insertion tube 4 to rotate. The tapping rod 5 is then rotated out of the injection molded part. Since the tapping rod 5 is placed in the injection molded part during injection, only some plastic debris is produced when it is rotated out, which reduces the waste of injection molding material and facilitates the cleaning of the screw hole of the injection molded part. In order to avoid the need for a second cleaning process to clean the screw hole, which reduces efficiency, an air seat 6 is integrated into the mounting base 1 and connected to an air pump through an air pipe. This allows the debris generated during tapping to be absorbed and cleaned in an integrated manner, eliminating the need for workers to clean the debris in the next stage of the production line.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tapping device for injection molded parts, comprising a mounting base (1), characterized in that, Also includes: A rotary drive assembly (3) is fixed on the upper part of the mounting base (1). The drive end of the rotary drive assembly (3) is fixedly connected to a tube (4). The tube (4) is rotated by the rotary drive assembly (3). A tapping rod (5) for being built into the injection molded part is movably inserted into the lower part of the tube (4). The insertion tube (4) has a slot inside that matches the tapping rod (5), and the tapping rod (5) is driven by the insertion tube (4) to perform a rotating tapping operation. The tapping rod (5) has an internal gas flow channel, and the mounting base (1) has an air seat (6) fixedly installed on its upper part for connecting to an external air intake source. The air seat (6) is movably connected to the tapping rod (5).

2. The tapping device for injection molded parts as described in claim 1, characterized in that: The rotary drive assembly includes a rotary motor (301), which is fixedly installed in the mounting base (1), and a rotary gear (302) is fixedly connected to the output end of the rotary motor (301).

3. The tapping device for injection molded parts as described in claim 2, characterized in that: A rotating gear ring (303) meshing with the rotating gear (302) is fixed on the upper part of the insertion tube (4), and the insertion tube (4) is rotatably installed inside the mounting base (1).

4. The tapping device for injection molded parts as described in claim 1, characterized in that: The tapping device also includes a lifting assembly (2), which includes a lifting motor (201). The lifting motor (201) is fixedly installed inside the mounting base (1), and the output end of the lifting motor (201) is fixedly connected to a lifting gear (202).

5. The tapping device for injection molded parts as described in claim 4, characterized in that: A screw (204) is rotatably mounted on the lower part of the gas seat (6). The screw (204) is hollow and communicates with the mounting seat (1). A lifting gear ring (203) that meshes with the lifting gear (202) is fixed on the upper part of the screw (204). The tapping rod (5) is screwed to the lower part of the screw (204).

6. The tapping device for injection molded parts as described in claim 5, characterized in that: The tapping rod (5) includes a sliding plate (501), the lower part of the insertion tube (4) is movably inserted into the sliding plate (501), and the lower part of the screw (204) is movably screwed into the sliding plate (501).

7. The tapping device for injection molded parts as described in claim 6, characterized in that: The slide plate (501) has grooves on both sides. A rotating plate (502) is slidably installed inside the grooves of the slide plate (501). An arc-shaped tapping plate (503) is rotatably installed on the side of the rotating plate (502) away from the slide plate (501). When the slide plate (501) is fully raised, the two tapping plates move closer together, and the lower part of the slide plate (501) moves to contact the pad (504).

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