Tapping device for inclined plane
By designing a tapping device for inclined surfaces, and utilizing a bevel gear reversing box and slide rail assembly to achieve automated tapping, the problem of low tapping efficiency and stripping of threads on inclined surfaces of TV hardware back panels has been solved, thereby improving work efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN CHANGHONG JIJA PRECISION IND CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-19
AI Technical Summary
In the existing technology, the tapping efficiency of the threaded holes on the beveled surface of TV hardware backplate is low and problems such as stripped threads and broken taps are easy to occur. Especially after automated stamping, manual operation is required, which is labor-intensive and has low precision.
A tapping device for inclined surfaces is designed, comprising a worktable, a tapping machine rod, a fixed plate, a first transmission rod, a bevel gear reversing box, a second transmission rod, and a universal joint coupling. The transmission reversing is achieved through the bevel gear reversing box, and the automated tapping operation is realized by combining the slide rail assembly and cylinder drive.
It improves the efficiency and product yield of bevel tapping, reduces the labor intensity of manual operation, and ensures the accuracy and continuity of tapping.
Smart Images

Figure CN224254394U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining technology, and in particular to a tapping device for inclined surfaces. Background Technology
[0002] Currently, the processing of metal back panels for televisions involves a tapping step. However, when using automated robotic stamping for multiple machines and processes, there is a lack of equipment to support tapping holes on inclined surfaces. This necessitates adding a manual tapping step after the automated process is complete. Manually operating a handheld electric tapping machine requires frequent operation, resulting in high labor intensity. Furthermore, when the hole size is M2 or smaller, the handheld tapping machine is prone to vibration, leading to stripped threads and broken taps. Utility Model Content
[0003] To overcome the problems of low tapping efficiency and easy stripping of threads on the beveled surface of TV hardware backplates, this utility model provides a tapping device for beveled surfaces.
[0004] The technical solution adopted by this utility model to solve its technical problem is:
[0005] A tapping device for inclined surfaces includes a worktable and a tapping machine rod for tapping inclined surfaces on components on the worktable. It also includes a fixed plate connected to the worktable, parallel to the inclined surface to be processed, with the tapping machine rod perpendicularly inserted into the fixed plate. Furthermore, it includes a rotatable first transmission rod, a bevel gear reversing box, a second transmission rod, and a universal joint coupling, all perpendicular to the worktable. The bevel gear reversing box connects the first and second transmission rods, and the second transmission rod is axially movable. The tapping machine rod and the second transmission rod are connected via the universal joint coupling. When the first transmission rod rotates, the bevel gear reversing box drives the second transmission rod to rotate, which in turn drives the tapping machine rod to rotate and feed, thus achieving the tapping operation.
[0006] In this application, automated tapping is achieved through the above-mentioned first transmission rod, bevel gear reversing box, second transmission rod and universal joint coupling, so as to improve work efficiency and product yield.
[0007] In some embodiments, a slide rail assembly is also included, which is mounted on a worktable, and a fixed plate is slidably connected to the slide rail assembly, with the sliding direction being consistent with the axial direction of the second transmission rod.
[0008] In some embodiments, a cylinder is also included, with the cylinder output end connected to a fixing plate for sliding the fixing plate relative to the slide rail assembly.
[0009] In some embodiments, a universal floating joint is provided between the cylinder output end and the fixed plate.
[0010] In some embodiments, the tapping machine's tapping rod includes a tap sleeve and a tapping rod body. The tap sleeve has a through hole with internal threads, and the surface of the tapping rod body has corresponding external threads. The tap sleeve is fixedly connected to a fixed plate, and the tapping rod body and the second transmission rod are connected by a universal joint coupling.
[0011] In some embodiments, the bevel gear reversing box includes a driving bevel gear and a driven bevel gear that cooperate with each other. A first transmission rod is connected to the driving bevel gear, and a second transmission rod passes through the driven bevel gear to rotate with the driven bevel gear and can move axially.
[0012] In some embodiments, the worktable is provided with locating pins for positioning components on the worktable.
[0013] In some embodiments, a pressure plate assembly is provided on the worktable for clamping and fixing components on the worktable.
[0014] In some embodiments, a connecting rod is provided between the tapping machine's thread rod and the second transmission rod. One end of the connecting rod is connected to the second transmission rod via a first universal joint coupling, and the other end is connected to the tapping machine's thread rod via a second universal joint coupling.
[0015] The beneficial effects of this utility model are:
[0016] The above-mentioned first transmission rod, bevel gear reversing box, second transmission rod and universal joint coupling are used to realize automated tapping, thereby improving work efficiency and product yield; the slide rail assembly realizes the sliding of the fixed plate, that is, the sliding of the tapping machine tooth bar on it, to ensure accurate and fast reciprocating motion. Attached Figure Description
[0017] Figure 1 This is a side view of the tapping device for inclined surfaces provided in this embodiment of the utility model;
[0018] Figure 2 This is a top view of the tapping device for inclined surfaces provided in this embodiment of the utility model.
[0019] The markings in the diagram are as follows: 1-First transmission rod, 2-Jig plate base, 3-Cylinder, 4-Support rod, 5-Bevel gear reversing box, 6-Second transmission rod, 7-First universal joint coupling, 8-Connecting rod, 9-Second universal joint coupling, 10-Tapping machine thread rod, 11-Fixing plate, 12-Metal back plate, 13-Positioning pin, 14-Support block, 15-Slide rail assembly, 16-Slide rail mounting base, 17-Universal floating joint, 18-Pressure plate assembly. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings.
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0022] like Figure 1 and Figure 2 As shown, this utility model provides a tapping device for inclined surfaces.
[0023] The tapping device for inclined surfaces includes a worktable and a tapping machine shank 10, which is used to tap the inclined surfaces of the components on the worktable. In this embodiment, a jig plate base 2 is arranged on the worktable as a supporting base. The components on the worktable are the metal back plate 12 shown in the figure.
[0024] It also includes a fixed plate 11 connected to the worktable. The fixed plate 11 is set parallel to the inclined surface to be processed, and the tapping machine shank 10 is perpendicularly inserted into the fixed plate 11. This arrangement allows the tapping operation on the inclined surface to be completed when the tapping machine shank 10 is fed forward relative to the fixed plate 11.
[0025] It also includes a rotatable first transmission rod 1, a bevel gear reversing box 5, a second transmission rod 6, and a universal joint coupling, all perpendicular to the worktable. The bevel gear reversing box 5 connects the first transmission rod 1 and the second transmission rod 6, and the second transmission rod 6 can move axially. The tapping machine's tapping rod 10 and the second transmission rod 6 are connected by the universal joint coupling. When the first transmission rod 1 rotates, the bevel gear reversing box 5 drives the second transmission rod 6 to rotate, and the rotation of the second transmission rod 6 drives the tapping machine's tapping rod 10 to rotate and feed, thereby realizing the tapping operation.
[0026] The reversing of the transmission is achieved through a bevel gear reversing box 5. The first transmission rod 1 is set perpendicular to the worktable. In this embodiment, a drive unit is provided below the fixture plate 2 for driving the rotation of the first transmission rod 1. A servo motor is commonly used as the drive unit here.
[0027] Reference Figure 1 The fixture plate 2 is also provided with a support rod 4 for supporting the bevel gear reversing box 5.
[0028] In this application, automated tapping is achieved by using the first transmission rod 1, bevel gear reversing box 5, second transmission rod 6 and universal joint coupling as described above, so as to improve work efficiency and product yield.
[0029] When tapping the bevel, the end of the tapping machine shank 10 extends directly above the metal back plate 12. To facilitate the vertical installation of the metal back plate 12 relative to the worktable, a clearance position is preferably provided in this embodiment. Specifically, it also includes a slide rail assembly 15, which is mounted on the worktable. The fixing plate 11 is slidably connected to the slide rail assembly 15, with the sliding direction consistent with the axial direction of the second transmission rod 6. In this embodiment, the sliding of the fixing plate 11, i.e., the sliding of the tapping machine shank 10 on it, is achieved through the slide rail assembly 15, ensuring precise and rapid reciprocating motion. In this embodiment, a slide rail mounting seat 16 is provided on the fixture plate base 2 for mounting the slide rail assembly 15. When changing the part to be processed, the height of the slide rail mounting seat 16 can be adaptively adjusted according to the tilt angle of the fixing plate 11, i.e., the angle of the bevel to be processed. Obviously, the slide rail assembly 15 here is a linear slide rail.
[0030] In this embodiment, a cylinder 3 is also included as a driving component for the fixed plate 11 to slide relative to the worktable. The output end of the cylinder 3 is connected to the fixed plate 11 and is used to drive the fixed plate 11 to slide relative to the slide rail assembly 15.
[0031] Furthermore, a universal floating joint 17 is provided between the output end of cylinder 3 and the fixed plate 11. This arrangement avoids the problem of cylinder 3 deviating from its movement trajectory and generating resistance during forward movement.
[0032] In this embodiment, the tapping machine tapping bar 10 includes a tap sleeve and a tapping bar body. The tap sleeve has a through hole with internal threads, and the surface of the tapping bar body has corresponding external threads. The tap sleeve is fixedly connected to the fixing plate 11, and the tapping bar body and the second transmission rod 6 are connected by a universal joint coupling.
[0033] In this embodiment, the bevel gear reversing box 5 includes a driving bevel gear and a driven bevel gear that cooperate with each other. The first transmission rod 1 is connected to the driving bevel gear, and the second transmission rod 6 passes through the driven bevel gear so as to rotate with the driven bevel gear and can make axial movements.
[0034] In this embodiment, both the first transmission rod 1 and the second transmission rod 6 are irregularly shaped rods, thereby realizing the transmission of rotation. Specifically, both the first transmission rod 1 and the second transmission rod 6 are hexagonal transmission rods, and the driven bevel gear has a hexagonal through hole in the middle, allowing the second transmission rod 6 to move axially.
[0035] In this embodiment, a positioning pin 13 is provided on the worktable for positioning the components on the worktable. A support block 14 is also provided for supporting the metal back plate 12.
[0036] In this embodiment, a pressure plate assembly 18 is provided on the worktable, and the pressure plate assembly 18 is used to clamp and fix the components on the worktable.
[0037] In this embodiment, a connecting rod 8 is provided between the tapping machine's thread rod 10 and the second transmission rod 6. One end of the connecting rod 8 is connected to the second transmission rod 6 via a first universal joint coupling 7, and the other end is connected to the tapping machine's thread rod 10 via a second universal joint coupling 9. The connecting rod 8 increases the mechanical joint, which helps ensure the smooth sliding of the second transmission rod 6, allowing for flexible handling even if the workpiece is changed or the angle of the machined inclined surface changes.
[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A tapping device for inclined surfaces, comprising a worktable and a tapping machine shank (10), for tapping inclined surfaces of components on the worktable, characterized in that: It also includes a fixed plate (11) connected to the workbench, the fixed plate (11) being set parallel to the inclined surface to be processed, and the tapping machine shank (10) being vertically inserted through the fixed plate (11); It also includes a rotatable first transmission rod (1) set perpendicular to the worktable, a bevel gear reversing box (5), a second transmission rod (6) and a universal joint coupling. The bevel gear reversing box (5) connects the first transmission rod (1) and the second transmission rod (6), and the second transmission rod (6) can move axially. The tapping machine tooth rod (10) and the second transmission rod (6) are connected by a universal joint coupling. When the first transmission rod (1) rotates, the bevel gear reversing box (5) drives the second transmission rod (6) to rotate. The rotation of the second transmission rod (6) drives the tapping machine's tooth bar (10) to rotate and feed, thereby realizing the tapping operation.
2. The tapping device for inclined surfaces as described in claim 1, characterized in that: It also includes a slide rail assembly (15), which is mounted on the worktable. A fixing plate (11) is slidably connected to the slide rail assembly (15), and the sliding direction is consistent with the axis of the second transmission rod (6).
3. The tapping device for inclined planes as described in claim 2, characterized in that: It also includes a cylinder (3), the output end of which is connected to a fixing plate (11) for sliding of the fixing plate (11) relative to the slide rail assembly (15).
4. The tapping device for inclined planes as described in claim 3, characterized in that: A universal floating joint (17) is provided between the output end of the cylinder (3) and the fixed plate (11).
5. The tapping device for inclined planes as described in claim 1, characterized in that: The tapping machine tap bar (10) includes a tap sleeve and a tap bar body. The tap sleeve has a through hole with internal threads, and the tap bar body has an external thread on its surface. The tap sleeve is fixedly connected to the fixing plate (11), and the tap bar body and the second transmission rod (6) are connected by a universal joint coupling.
6. The tapping device for inclined planes as described in claim 1, characterized in that: The bevel gear reversing box (5) includes a driving bevel gear and a driven bevel gear that cooperate with each other. The first transmission rod (1) is connected to the driving bevel gear, and the second transmission rod (6) passes through the driven bevel gear so as to rotate with the driven bevel gear and can make axial movements.
7. The tapping device for inclined planes as described in claim 1, characterized in that: The workbench is equipped with positioning pins (13) for positioning components on the workbench.
8. The tapping device for inclined planes as described in claim 1, characterized in that: A pressure plate assembly (18) is provided on the worktable, which is used to clamp and fix the parts on the worktable.
9. The tapping device for beveled surfaces as described in any one of claims 1-8, characterized in that: in A connecting rod (8) is provided between the tapping machine tooth bar (10) and the second transmission rod (6). One end of the connecting rod (8) is connected to the second transmission rod (6) through the first universal joint coupling (7), and the other end is connected to the tapping machine tooth bar (10) through the second universal joint coupling (9).