High-precision gear box body handheld tapping device

Abstract

The utility model discloses a high-precision gear box body handheld tapping device which comprises a connecting frame, a tapping mechanism, a connecting rod, a movable block, a threaded rod, a hand wheel, a pull rod and a hanging plate, the movable block is movably connected to the connecting frame, one end of the threaded rod is connected with the tapping mechanism, and the other end of the threaded rod penetrates through the movable block to be connected with the hand wheel. The two connecting rods are symmetrically connected to the connecting frame, one ends of the two pull rods are hinged to the corresponding connecting rods respectively, and the other ends of the pull rods are connected with the hanging plate. The high-precision gear box body handheld tapping device is simple in structure, convenient to use and practical, the threaded rod is driven by the hand wheel to rotate, the screw tap ejector rod pushes the screw tap to provide propelling force for tapping, and the phenomenon that the screw tap is broken under the condition that the screw tap conducts manual tapping is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of tapping technology, specifically relating to a high-precision handheld tapping device for a toothed gear box. Background Technology

[0002] High-precision gearbox housings, especially high-precision gear housings, are key components in mechanical transmission systems. Their design and manufacturing quality directly affect the performance and reliability of the entire transmission system. Many threaded holes on high-precision gearbox housings require manual machining, mainly because fine threads are too deep and need to be tapped slowly and manually. Mechanical tapping cannot control the tapping speed, although it can process at a uniform speed, but it is poor at handling abnormal situations and is prone to tool breakage. Manual tapping is also prone to tap breakage, but compared to mechanical tapping, it is more flexible and can effectively reduce the occurrence of tap breakage. There are many reasons for tap breakage, generally including excessively deep holes, excessively hard materials, gradually increasing tap working resistance, and broken tapping teeth affecting the continued tapping of the next tapping tooth, leading to tap breakage. The driving force of manual taps mainly relies on the helical teeth to propel the tapping, while mechanical tapping can guarantee the tapping force through mechanics. One is flexible in handling abnormal situations and reducing the occurrence of tap breakage, while the other is faster but the tap is more prone to breakage. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a high-precision handheld tapping device with a gearbox body. It has a simple structure and is convenient and practical. The handwheel drives the threaded rod to rotate, so that the tap push rod pushes the tap to provide the tapping force, thereby reducing the occurrence of tap breakage when the tap is manually tapped.

[0004] A high-precision handheld tapping device for a gearbox includes a connecting frame, a tapping mechanism, connecting rods, a movable block, a threaded rod, a handwheel, a pull rod, and a hanging plate. The movable block is movably connected to the connecting frame. One end of the threaded rod is connected to the tapping mechanism, and the other end passes through the movable block and is connected to the handwheel. Two connecting rods are symmetrically connected to the connecting frame. One end of each of the two pull rods is hinged to the corresponding connecting rod, and the other end of the pull rod is connected to the hanging plate.

[0005] Preferably, the tapping mechanism includes a tap rod, an external threaded tube, a nut, a tapping handwheel, a four-corner connector, a connecting tube, and a bolt. One end of the tap rod is connected to the threaded rod, and the other end passes through the external threaded tube and the connecting tube. One end of the external threaded tube is threadedly connected to the nut, and the other end extends through the tapping handwheel into the connecting tube. Both ends of the connecting tube are connected to the tapping handwheel and the four-corner connector, respectively. The nut has a locking hole for the bolt to pass through, and the bolt is connected to the tapping handwheel.

[0006] Preferably, it includes a connecting sleeve, the connecting sleeve having inner four-corner grooves at both ends, one of the inner four-corner grooves cooperating with a four-corner connector.

[0007] Preferably, the pull rod is a telescopic rod.

[0008] Preferably, the mounting plate has connection holes.

[0009] Beneficial effects:

[0010] (1) The present invention provides a high-precision tooth box hand-held tapping device, which has a simple structure and is convenient and practical. The handwheel drives the threaded rod to rotate, so that the tap push rod pushes the tap to provide the tapping force, thereby reducing the occurrence of tap breakage when the tap is manually tapped.

[0011] (2) The present invention provides a high-precision tooth box hand-held tapping device. By replacing the corresponding external thread tube for tapping, the tapping thrust will not change too much, thus ensuring the stability of the tapping thrust and avoiding the phenomenon that the tap is easily broken due to changes in thrust. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a handheld tapping device;

[0013] Figure 2 This is a schematic diagram of the tapping mechanism;

[0014] 1-Connecting frame, 2-Tapping mechanism, 21-Tapping rod, 22-External threaded pipe, 23-Nut, 24-Tapping handwheel, 25-Connecting sleeve, 26-Internal four-corner groove, 27-Four-corner connector, 28-Connecting pipe, 3-Connecting rod, 4-Moving block, 5-Threaded rod, 6-Handwheel, 7-Pull rod, 8-Hanging plate. Detailed Implementation

[0015] The embodiments of this utility model are further described below with reference to the accompanying drawings.

[0016] Example 1

[0017] like Figures 1 to 2As shown; a high-precision handheld tapping device for a gearbox includes a connecting frame 1, a tapping mechanism 2, connecting rods 3, a movable block 4, a threaded rod 5, a handwheel 6, a pull rod 7, and a hanging plate 8. The movable block 4 is movably connected to the connecting frame 1. One end of the threaded rod 5 is connected to the tapping mechanism 2, and the other end passes through the movable block 4 and is connected to the handwheel 6. Two connecting rods 3 are symmetrically connected to the connecting frame 1. One end of each of the two pull rods 7 is hinged to the corresponding connecting rod 3, and the other end of the pull rod 7 is connected to the hanging plate 8. The tapping mechanism 2 includes a tap pin 21, an external threaded tube 22, a nut 23, a tapping handwheel 24, a four-corner connector 27, and a connecting tube 28. The device includes a bolt, a tap rod 21 with one end connected to a threaded rod 5 and the other end passing through an external threaded tube 22 and a connecting tube 28. One end of the external threaded tube 22 is threadedly connected to a nut 23, and the other end extends through a tapping handwheel 24 into the connecting tube 28. Both ends of the connecting tube 28 are connected to the tapping handwheel 24 and a four-corner connector 27, respectively. The nut 23 has a locking hole for the bolt to pass through, and the bolt is connected to the tapping handwheel 24. The device also includes a connecting sleeve 25 with inner four-corner grooves 26 at both ends, one of which mates with a four-corner connector 27. The pull rod 7 is a telescopic rod. The hanging plate 8 has a connecting hole.

[0018] Pre-select the corresponding external threaded tube 22 and nut 23 for tapping. Fix the hanging plate 8 to the gearbox body with bolts, or hang the hanging plate 8 on the gearbox body. Then place the tap on the hole to be machined. Rotate the handwheel 6, which drives the threaded rod 5, which in turn drives the tap push rod 21, causing the tap push rod 21 to press the tap into the hole. Then, fit one inner quadrangular groove 26 of the connecting sleeve 25 onto the tap. Insert the quadrangular connector 27 into the other quadrangular groove 26. Rotate the nut 23 to make it fit tightly against the tapping handwheel 24. Connect the tapping handwheel 24 and nut 23 with bolts. Then rotate the tapping handwheel... The wheel 24 rotates and the nut 23 rotates along the external thread of the external threaded tube 22 and moves downward. At the same time, the tapping handwheel 24 drives the connecting tube 28, the four-corner connector 27 and the connecting sleeve 25 to rotate in sequence. The connecting sleeve 25 drives the tap to rotate and tap the hole on the gear box. The downward pushing force is generated by the threaded engagement between the nut 23 and the external threaded tube 22. It can also be generated by rotating the handwheel 6 to drive the threaded rod 5, thereby providing the pushing force for tapping and reducing the occurrence of tap breakage. When the tap breaks, tapping can be stopped immediately, and the broken tap tooth can be cleaned to reduce the occurrence of tap breakage due to tapping abnormalities.

[0019] The specific embodiments of this utility model have been described in detail above, but they are merely examples, and this utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to this utility model are also within the scope of this utility model. Therefore, all equivalent changes and modifications made without departing from the spirit and scope of this utility model are covered within the scope of this utility model.

Claims

1. A high-precision handheld tapping device with a gearbox body, characterized in that: It includes a connecting frame (1), a tapping mechanism (2), a connecting rod (3), a movable block (4), a threaded rod (5), a handwheel (6), a pull rod (7), and a hanging plate (8). The movable block (4) is movably connected to the connecting frame (1). One end of the threaded rod (5) is connected to the tapping mechanism (2), and the other end passes through the movable block (4) and is connected to the handwheel (6). The two connecting rods (3) are symmetrically connected to the connecting frame (1). One end of the two pull rods (7) is respectively hinged to the corresponding connecting rod (3), and the other end of the pull rod (7) is connected to the hanging plate (8).

2. The high-precision handheld tapping device for a gearbox as described in claim 1, characterized in that: The tapping mechanism (2) includes a tapping rod (21), an external threaded tube (22), a nut (23), a tapping handwheel (24), a four-corner connector (27), a connecting tube (28), and a bolt. One end of the tapping rod (21) is connected to the threaded rod (5), and the other end passes through the external threaded tube (22) and the connecting tube (28). One end of the external threaded tube (22) is threadedly connected to the nut (23), and the other end passes through the tapping handwheel (24) and extends into the connecting tube (28). Both ends of the connecting tube (28) are connected to the tapping handwheel (24) and the four-corner connector (27), respectively. The nut (23) has a locking hole for the bolt to pass through, and the bolt is connected to the tapping handwheel (24).

3. The high-precision handheld tapping device for a gearbox as described in claim 2, characterized in that: It includes a connecting sleeve (25), and the connecting sleeve (25) has inner four corner grooves (26) at both ends, and one of the inner four corner grooves (26) cooperates with the four corner connectors (27).

4. A high-precision handheld tapping device for a gearbox as described in claim 1 or 3, characterized in that: The pull rod (7) is a telescopic rod.

5. A high-precision handheld tapping device for a gearbox as described in claim 4, characterized in that: The mounting plate (8) has connection holes.

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