A tapping and threading device for processing ductile iron thread buckles

Abstract

The utility model discloses a tapping and threading device for processing ductile iron threads, comprising a turntable of an annular structure, which is rotatably mounted above a frame through a slewing bearing, and the upper surface of the turntable is mounted with three groups of clamps evenly distributed in a circumference, and the clamps are used to clamp and fix the threaded workpiece; a support cylinder is provided inside the turntable, and a horizontally arranged die drive assembly is fixedly mounted on the top of the support cylinder; a tap drive assembly is provided on the side of the turntable, and the tap drive assembly is fixedly connected to the top of the frame, and the tap drive assembly and the die drive assembly are arranged opposite to each other; a dust ring is provided at the connection between the turntable and the support cylinder. The tapping and threading device for processing ductile iron threads provided by the utility model can realize the synchronous feeding action, tapping and threading action and unloading action of the threaded workpiece, and significantly improve the tapping and threading processing efficiency of batch threaded workpieces.

Description

Technical Field

[0001] The utility model relates to a tapping and threading device for processing ductile iron thread buckles, belonging to the technical field of tapping and threading devices. Background Art

[0002] Ductile iron thread buckles need to be tapped and threaded at both ends after casting. Tapping refers to using a certain torque to screw the tap into the bottom hole to be drilled to produce internal threads, and threading refers to using a die to produce external threads on a round rod. With the development of mechanical equipment technology, the equipment required for tapping and threading is becoming more and more complete, and the auxiliary equipment for processing has gradually changed from being able to perform tapping or threading alone to integrated tapping and threading equipment.

[0003] In the actual processing of the existing integrated tapping and threading equipment, the loading and clamping action, tapping and threading action, and unloading action of the workpiece are carried out in sequence. When the unloading of the previous workpiece is completed, the loading of the next workpiece can be carried out. When multiple workpieces need to be processed, the tapping and threading processing efficiency of the existing equipment cannot meet the processing requirements.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In view of the deficiencies in the background technology, the utility model provides a tapping and threading device for processing ductile iron threads, which can realize the synchronous feeding, tapping and threading and unloading actions of threaded workpieces, and significantly improve the tapping and threading processing efficiency of batch threaded workpieces.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A tapping and threading device for processing ductile iron thread buckles comprises a rotating disk of an annular structure, the rotating disk is rotatably mounted above a frame through a slewing bearing, and three groups of clamps evenly distributed in a circumference are mounted on the upper surface of the rotating disk, and the clamps are used to clamp and fix the thread buckle workpiece;

[0008] A support cylinder is provided inside the turntable, and a horizontally arranged die drive assembly is fixedly installed on the top of the support cylinder; a tap drive assembly is provided on the side of the turntable, the tap drive assembly is fixedly connected to the top of the frame, and the tap drive assembly and the die drive assembly are arranged facing each other; a dust ring is provided at the connection between the turntable and the support cylinder.

[0009] Furthermore, the support tube is coaxially arranged with the turntable, the support tube is arranged in a vertical direction, and the bottom end of the support tube is fixedly connected with the frame.

[0010] Furthermore, the slewing bearing comprises a slewing bearing inner ring and a slewing bearing outer ring which are rotatably connected, the slewing bearing outer ring is fixedly connected to the frame by bolts, and the slewing bearing inner ring is fixedly connected to the turntable by bolts.

[0011] Furthermore, an inner gear ring is fixedly installed inside the inner ring of the slewing bearing, and the inner gear ring is meshed and connected with the gear.

[0012] Furthermore, the gear is mounted on the output shaft of the stepper motor, and the stepper motor drives the turntable to rotate step by step through the meshing of the gear and the inner gear ring, and the turntable rotates 120 degrees each time.

[0013] Furthermore, the upper part of the main body of the dustproof ring is in a conical cylindrical structure, and the inner ring of the conical cylindrical structure is rotatably connected to the outer wall of the supporting cylinder.

[0014] Furthermore, the lower part of the main body of the dust ring is an annular structure, and the annular structure is fixedly connected to the upper surface of the turntable.

[0015] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0016] The utility model sets three workstations on the turntable, namely, a loading workstation, a tapping and threading workstation and a unloading workstation. Each workstation is provided with a set of clamps for clamping the threaded workpiece. The turntable rotates 120 degrees each time, so that the loading action, the tapping and threading action and the unloading action of the threaded workpiece are performed synchronously, which significantly improves the tapping and threading efficiency of the threaded workpiece.

[0017] The tap driving assembly and the die driving assembly in the utility model are arranged facing each other. The tap driving assembly is used to process the inner side of the end of the threaded workpiece into an internal thread, and the die driving assembly is used to process the outer side of the end of the threaded workpiece into an external thread. The tapping and threading actions are performed synchronously.

[0018] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is the connection diagram of the turntable;

[0021] Figure 3 This is a schematic diagram of the fixture distribution.

[0022] In the figure, 1-turntable, 2-slewing bearing, 3-frame, 4-die drive assembly, 5-support cylinder, 6-clamp, 7-inner ring, 8-gear, 9-stepping motor, 10-dust ring, 11-tap drive assembly, 12-thread workpiece. DETAILED DESCRIPTION

[0023] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0024] like Figure 1-Figure 3 As shown together, the utility model provides a tapping and threading device for processing ductile iron threads, including a turntable 1 with an annular structure, the turntable 1 is rotatably mounted above a frame 3 through a slewing bearing 2, and three groups of clamps 6 evenly distributed in a circle are mounted on the upper surface of the turntable 1, and the clamps 6 are used to clamp and fix the threaded workpiece 12.

[0025] A support tube 5 is provided inside the turntable 1 , and a horizontally arranged die driving assembly 4 is fixedly installed on the top end of the support tube 5 . The die driving assembly 4 is used to process an external thread on the outer side of the end of the threaded workpiece 12 .

[0026] A tap drive assembly 11 is provided on the side of the turntable 1. The tap drive assembly 11 is fixedly connected to the top of the frame 3, and the tap drive assembly 11 and the die drive assembly 4 are arranged opposite to each other. The tap drive assembly 11 is used to process the inner side of the end of the threaded workpiece 12 into an internal thread, and the tapping and threading actions are performed synchronously.

[0027] The support tube 5 is coaxially arranged with the turntable 1 , and the support tube 5 is arranged in the vertical direction, and the bottom end of the support tube 5 is fixedly connected with the frame 3 .

[0028] The slewing bearing 2 comprises a slewing bearing inner ring and a slewing bearing outer ring which are rotatably connected. The slewing bearing outer ring is fixedly connected to the frame 3 by bolts, and the slewing bearing inner ring is fixedly connected to the turntable 1 by bolts.

[0029] An inner gear ring 7 is fixedly installed inside the inner ring of the slewing bearing, and the inner gear ring 7 is meshed with a gear 8. The gear 8 is installed on the output shaft of a stepper motor 9. The stepper motor 9 drives the turntable 1 to rotate step by step through the meshing of the gear 8 and the inner gear ring 7. The turntable 1 rotates 120° each time.

[0030] A dust ring 10 is provided at the connection between the turntable 1 and the support tube 5. The upper part of the main body of the dust ring 10 is a conical structure, the inner ring of the conical structure is rotatably connected to the outer wall of the support tube 5, and the lower part of the main body of the dust ring 10 is an annular structure, which is fixedly connected to the upper surface of the turntable 1. The dust ring 10 is used to prevent debris and impurities generated during tapping and threading from falling into the bottom along the rotation gap between the turntable 1 and the support tube 5, affecting the rotation and gear transmission.

[0031] The specific working principle of this utility model:

[0032] The tap drive assembly 11 and the die drive assembly 4 in the utility model are arranged opposite to each other. The tap drive assembly 11 is used to process the inner side of the end of the threaded workpiece 12 into an internal thread, and the die drive assembly 4 is used to process the outer side of the end of the threaded workpiece 12 into an external thread. The tapping and threading actions are performed synchronously.

[0033] The utility model sets three workstations on the turntable 1, namely the loading workstation, the tapping and threading workstation and the unloading workstation. Each workstation is provided with a group of clamps 6 for clamping the threaded workpiece 12. The turntable 1 rotates 120° each time, thereby realizing the synchronous loading action, tapping and threading action and unloading action of the threaded workpiece 12, and significantly improving the tapping and threading efficiency of the threaded workpiece 12.

[0034] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A tapping and threading device for processing ductile iron thread, characterized in that: The invention comprises a turntable (1) of an annular structure, wherein the turntable (1) is rotatably mounted above a frame (3) via a slewing bearing (2), and three groups of clamps (6) evenly distributed in a circumference are mounted on the upper surface of the turntable (1), wherein the clamps (6) are used to clamp and fix a threaded workpiece (12); A support tube (5) is provided inside the turntable (1), and a horizontally arranged die drive assembly (4) is fixedly mounted on the top of the support tube (5); a tap drive assembly (11) is provided on the side of the turntable (1), and the tap drive assembly (11) is fixedly connected to the top of the frame (3), and the tap drive assembly (11) and the die drive assembly (4) are arranged facing each other; a dust ring (10) is provided at the connection between the turntable (1) and the support tube (5).

2. A tapping and threading device for processing ductile iron thread as claimed in claim 1, characterized in that: The support tube (5) is coaxially arranged with the turntable (1), the support tube (5) is arranged in a vertical direction, and the bottom end of the support tube (5) is fixedly connected to the frame (3).

3. A tapping and threading device for processing ductile iron thread as claimed in claim 1, characterized in that: The slewing bearing (2) comprises a slewing bearing inner ring and a slewing bearing outer ring which are rotatably connected, the slewing bearing outer ring is fixedly connected to the frame (3) by bolts, and the slewing bearing inner ring is fixedly connected to the turntable (1) by bolts.

4. A tapping and threading device for processing ductile iron thread as claimed in claim 3, characterized in that: An inner gear ring (7) is fixedly mounted inside the inner ring of the slewing bearing, and the inner gear ring (7) is meshingly connected with the gear (8).

5. A tapping and threading device for processing ductile iron thread as claimed in claim 4, characterized in that: The gear (8) is mounted on the output shaft of the stepper motor (9). The stepper motor (9) drives the turntable (1) to rotate step by step through the meshing of the gear (8) and the inner gear ring (7). The turntable (1) rotates 120 degrees each time.

6. A tapping and threading device for processing ductile iron thread as claimed in claim 1, characterized in that: The upper part of the main body of the dustproof ring (10) is in the form of a cone-shaped structure, and the inner ring of the cone-shaped structure is rotatably connected to the outer wall of the support cylinder (5).

7. A tapping and threading device for processing ductile iron thread as claimed in claim 6, characterized in that: The lower part of the main body of the dustproof ring (10) is an annular structure, and the annular structure is fixedly connected to the upper surface of the rotating disk (1).

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