Television frame universal machining tool
By designing a universal machining fixture for TV bezels, and adopting a detachable adjustment mechanism and an automatic clamping control system, the problem of low tooling switching efficiency in TV bezel machining was solved, achieving fast and accurate tooling switching and improved product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-24
AI Technical Summary
Existing technologies for TV bezel processing have low tooling switching efficiency, unstable quality, high tooling investment costs, and long product switchover times.
A universal machining fixture for TV bezels was designed, including a base plate and an adjustment mechanism module. The adjustment mechanism, consisting of a detachable vertical plate, horizontal plate, cylinder, and positioning block, combined with an automatic clamping control system, enables fast and accurate tooling switching and positioning.
It enables rapid and accurate switching between various faceplates, shortens changeover time from 7 hours to 1.5 hours, reduces tooling costs, and improves production efficiency and product quality.
Smart Images

Figure CN224027007U_ABST
Abstract
Description
Technical Field
[0001] This utility model discloses a universal machining fixture for TV frames, belonging to the field of auxiliary processing equipment. Background Technology
[0002] As the structural frame of a television, the TV bezel serves multiple functions, including functional support, heat dissipation, protection, aesthetic appeal, and visual guidance. It also secures and protects the screen panel, whether made of glass or plastic, preventing it from cracking or deforming due to impacts or vibrations. Metal bezels, such as those made of aluminum alloy, combine lightweight design with high strength, enhancing the overall structural stability of the television.
[0003] Currently, there are many types of TV bezels with varying sizes. In actual processing and clamping, various machining tools are required, and the cost of tooling investment is high, and the product changeover time is long, resulting in inconvenience in the actual use of current tooling. Utility Model Content
[0004] The technical problem to be solved by this utility model is that the existing TV frame processing tooling has low switching efficiency and unstable quality.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a universal machining fixture for TV bezels, including a base plate and an adjustment mechanism module. The adjustment mechanism module is detachably mounted on the base plate at intervals. The adjustment mechanism module includes a vertical plate, a horizontal plate, a cylinder, and positioning blocks. The vertical plate is vertically mounted on the base plate and is detachably connected to the base plate. The horizontal plate is horizontally mounted on the upper end of the vertical plate. The lower end of the positioning block is provided with an inverted L-shaped opening, and the positioning blocks are spaced along the length of the horizontal plate. A through hole is provided on the horizontal plate below the inverted L-shaped opening. A clamping block is provided at the extended rod end of the cylinder. The cylinder is located below the through hole, and an L-shaped opening is provided at the upper end of the clamping block.
[0006] In the above structure, a pin is detachably inserted into the upper side wall of the positioning block opening.
[0007] The structure also includes a positioning pin, through which the base plate and the upright plate are connected and positioned.
[0008] In the above structure, the horizontal plate is provided with support bars.
[0009] In the above structure, the L-shaped opening at the upper end of the clamping block has an upward convex arc-shaped structure.
[0010] Furthermore, the clamping block in the above structure is made of mold steel with a hardness greater than HRC55, and the roughness of the convex arc surface of the L-shaped opening is less than or equal to R0.4.
[0011] In the above structure, the cylinder extension end is provided with a T-shaped connecting rod, the lower end of the clamping block is provided with an inverted T-shaped groove, and the connecting rod passes through the T-shaped groove.
[0012] In the above structure, the base plate is provided with connecting holes at intervals, and the upright plate is detachably connected to the base plate by bolts.
[0013] The distance between the positioning block and the clamping block in the above structure is adjustable.
[0014] The above structure also includes an automatic clamping control system, which is connected to a cylinder and can control the cylinders on the adjustment mechanism module used to clamp the same frame body to clamp or release synchronously.
[0015] The beneficial effects of this utility model are: this structure enables rapid and accurate switching between various frame machining fixtures, improving production efficiency and product quality. It adopts a movable modular structure, with the adjustment mechanism module and base plate positioned by locating pins and bolted together. The position of the modular mechanism can be adjusted according to different products to achieve tooling sharing, allowing for rapid product debugging. Simultaneously, the top plate's line contact method meets the front clamping force requirements of all profiles, and the adjustable size of the locating block accommodates the positioning of profiles of all widths. In practical use, this fixture can meet the processing needs of various TV frame specifications, and the changeover time has been reduced from 7 hours to 1.5 hours, significantly reducing tooling investment costs and improving product changeover efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is the front view of the present utility model;
[0018] Figure 3 This is a top view of the present invention;
[0019] Figure 4 This utility model Figure 3 Schematic diagram of the AA section structure.
[0020] In the diagram: 1. Base plate; 11. Connecting hole; 2. Adjustment mechanism module; 21. Vertical plate; 22. Cylinder; 221. Connecting rod; 23. Positioning block; 231. Pin; 24. Tightening block; 25. Horizontal plate; 26. Support bar; 3. Frame body. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings.
[0022] like Figures 1 to 4As shown, a universal machining fixture for a TV frame according to this utility model includes a base plate 1 and an adjustment mechanism module 2. The adjustment mechanism module 2 is detachably and spaced on the base plate 1. The adjustment mechanism module 2 includes a vertical plate 21, a horizontal plate 25, a cylinder 22, and a positioning block 23. The vertical plate 21 is vertically mounted on the base plate 1 and is detachably connected to the base plate 1. The horizontal plate 25 is horizontally mounted on the upper end of the vertical plate 21. The lower end of the positioning block 23 is provided with an inverted L-shaped opening, and the positioning blocks 23 are spaced along the length of the horizontal plate 25. A through hole is provided on the horizontal plate 25 below the inverted L-shaped opening. A clamping block 24 is provided at the extended rod end of the cylinder 22. The cylinder 22 is located below the through hole, and the upper end of the clamping block 24 is provided with an L-shaped opening. Those skilled in the art will understand that the adjustment mechanism module 2 of this structure is detachably mounted on the base plate 1 at intervals, allowing the adjustment mechanism module 2 to be adjusted according to different length models of the TV bezel body 3. It is actually quickly positioned using positioning pins and then fixed by bolts to achieve precise positioning of the tooling and rapid switching. The adjustment mechanism module 2 includes a vertical plate 21, a horizontal plate 25, a cylinder 22, and a positioning block 23. The vertical plate 21 and the horizontal plate 25 are the supporting components of the adjustment mechanism module 2. The lower end of the vertical plate 21 can be detachably connected to the base plate 1. The horizontal plate 25 is mainly used for the installation of the cylinder 22 and the positioning block 23. The number of vertical plates 21 can be determined according to the number of cylinders 22 and positioning blocks 23; that is, it can be one or multiple plates. Simultaneously, this structure primarily uses a cylinder 22 to drive a clamping block 24 to position the frame body 3. The cylinder 22 and clamping block 24 form a clamping mechanism. The upper end of the clamping block 24 has an irregular shape, specifically an L-shaped opening, while the lower end of the positioning block 23 has an inverted L-shaped opening. These openings are opposite each other, meaning the lower opening of the positioning block 23 and the upper opening of the clamping block 24 can form a rectangular structure. The frame body 3 is placed within the gap between the positioning block 23 and the clamping block 24 on the same straight line as adjacent adjustment mechanism modules 2. Activating the cylinder 22 at the lower end of the clamping block 24 quickly clamps the frame body 3. The positioning blocks 23 are spaced along the length of the horizontal plate 25, allowing multiple frame bodies 3 to be clamped simultaneously on a set of spaced adjustment mechanism modules 2, thus increasing clamping efficiency. The positioning blocks 23 can be designed according to the shape and size of the TV frame, and can be moved horizontally on the horizontal plate to tightly fit the edge or specific parts of the frame, thus satisfying the positioning requirements of frames of different widths. The actual positioning block 23 is designed according to the size of the TV frame and can be adjusted and replaced according to the frame body 3 of different TV models to achieve precise positioning processing of the frame body 3.
[0023] Preferably, a pin 231 is detachably inserted into the upper sidewall of the opening of the positioning block 23 in the above structure. Those skilled in the art will understand that, to facilitate the positioning of the frame body 3, this structure also detachably inserts a pin 231 into the upper sidewall of the opening of the positioning block 23. In practice, the frame body 3 is repositioned by inserting the pin 231 into the corresponding hole on the frame body 3, ensuring processing accuracy.
[0024] Preferably, the above structure also includes positioning pins, and the base plate 1 and the upright plate 21 are connected and positioned by the positioning pins. Those skilled in the art will understand that, in order to facilitate the quick positioning and installation of the adjustment mechanism module 2 on the base plate 1, this structure preferably includes positioning pins, specifically pin holes are provided at the lower ends of the base plate 1 and the upright plate 21, so that the base plate 1 and the upright plate 21 are connected and positioned by the positioning pins. In practice, for rapid positioning, multiple corresponding pin holes can be provided on the base plate 1 with engraved markings, allowing operators to quickly and accurately adjust the tooling to the required state.
[0025] Preferably, the horizontal plate 25 in the above structure is provided with support strips 26. Those skilled in the art will understand that, in order to facilitate the initial support of the frame body 3, this structure preferably provides support strips 26 on the horizontal plate 25. The actual number of support strips 26 needs to take into account the length of the frame body 3 to ensure that the frame body 3 is initially placed horizontally.
[0026] Preferably, in the above structure, the L-shaped opening at the upper end of the clamping block 24 has an upwardly convex arc-shaped structure in the middle. Those skilled in the art will understand that, since the clamping block 24 acts directly on the side wall of the frame body 3, the shape and size of the clamping block 24 are precisely adapted to the edge contour or specific positioning part of different TV frames. Therefore, this structure preferably has the L-shaped opening at the upper end of the clamping block 24 having an upwardly convex arc-shaped structure in the middle, so that the clamping block 24 and the side wall of the frame body 3 are in line contact, ensuring good contact.
[0027] Preferably, the clamping block 24 in the above structure is made of mold steel with a hardness greater than HRC55, and the roughness of the convex arc surface of the L-shaped opening is less than or equal to R0.4. Those skilled in the art will understand that, in order to ensure clamping and limiting of each type of frame body 3, this structure preferably uses clamping block 24 made of mold steel with a hardness greater than HRC55, and the roughness of the contact surface with the product is less than or equal to R0.4. In practice, a roughness of R0.4 is preferred to ensure positioning accuracy while avoiding scratch damage to the surface of the TV frame.
[0028] Preferably, in the above structure, the extended end of the cylinder 22 is provided with a T-shaped connecting rod 221, and the lower end of the clamping block 24 is provided with an inverted T-shaped groove, with the connecting rod 221 passing through the T-shaped groove. Those skilled in the art will understand that, to avoid jamming during automatic up-and-down clamping, this structure preferably provides a T-shaped connecting rod 221 at the extended end of the cylinder 22, and an inverted T-shaped groove at the lower end of the clamping block 24, with the connecting rod 221 passing through the T-shaped groove. This effectively connects the cylinder 22 and the clamping block 24 via a T-shaped movable connection, ensuring operational stability.
[0029] Preferably, in the above structure, the base plate 1 is provided with connecting holes 11 at intervals, and the upright plate 21 is detachably connected to the base plate 1 by bolts. Those skilled in the art will understand that, in order to facilitate the connection between the adjustment mechanism module 2 and the base plate 1, this structure preferably provides connecting holes 11 at intervals on the base plate 1, and the upright plate 21 is actually detachably connected to the base plate 1 by bolts.
[0030] Preferably, the distance between the positioning block 23 and the clamping block 24 in the above structure is adjustable. Those skilled in the art will understand that, in order to meet the clamping requirements of frame bodies 3 of different sizes, this structure preferably allows for an adjustable distance between the positioning block 23 and the clamping block 24. More preferably, the positioning block 23 also includes a longitudinal adjustment method; the positioning block 23 is bolted to the fixing groove of the adjustment mechanism module 2, and the longitudinal distance of the positioning block 23 is adjusted to meet the positioning processing requirements of face frames of different widths.
[0031] Preferably, the above structure also includes an automatic clamping control system, which is connected to the cylinder 22 and can control the cylinders 22 on the adjusting mechanism module 2 used for clamping the same frame body 3 to clamp or release synchronously. Those skilled in the art will understand that, in order to facilitate the rapid clamping of the same frame body 3, this structure preferably includes an automatic clamping control system. This device is connected to an external control system and can automatically control the cylinders 22 according to a preset program to achieve automatic clamping and releasing operations on the TV frame, thereby improving the degree of production automation.
Claims
1. A television bezel universal machining fixture, characterized by: Including bottom plate (1) and adjusting mechanism module (2), the adjusting mechanism module (2) is detachably arranged on the bottom plate (1) with spacing;The adjusting mechanism module (2) includes vertical plate (21), horizontal plate (25), air cylinder (22) and positioning block (23), the vertical plate (21) is vertically arranged on the bottom plate (1), and is detachably connected with the bottom plate (1), the horizontal plate (25) is horizontally arranged on the upper end of the vertical plate (21), the lower end of the positioning block (23) is provided with inverted L-shaped opening, and the positioning block (23) is arranged on the horizontal plate (25) along the length direction of the horizontal plate (25) with spacing, the horizontal plate (25) below the inverted L-shaped opening is provided with through hole, the air cylinder (22) is provided with the top pressing block (24) at the extension rod end, the air cylinder (22) is arranged below the through hole, and the top pressing block (24) is provided with L-shaped opening at the upper end.
2. A television bezel universal machining fixture as defined in claim 1, wherein: The upper side wall of the opening of the positioning block (23) is detachably inserted with the pin shaft (231).
3. A television bezel universal machining fixture as defined in claim 1, wherein: Further comprising positioning pin, the bottom plate (1) and the vertical plate (21) are connected and positioned by the positioning pin.
4. A television bezel universal machining fixture as defined in claim 1, wherein: The horizontal plate (25) is provided with support strip (26).
5. A television bezel universal machining jig as defined in claim 1 wherein: The middle part of the L-shaped opening of the top pressing block (24) upper end is convex arc surface structure.
6. A television bezel universal machining jig as defined in claim 5 wherein: The material of the top pressing block (24) is die steel, and the hardness is greater than HRC55, and the roughness of the convex arc surface of the L-shaped opening is less than or equal to R0.
4.
7. A television bezel universal machining jig as defined in claim 1 wherein: The extension end of the air cylinder (22) is provided with the connecting rod (221) of T-shaped structure, the lower end of the top pressing block (24) is provided with inverted T-shaped slot, and the connecting rod (221) is arranged in the T-shaped slot.
8. A television bezel universal machining jig as defined in claim 1 wherein: The bottom plate (1) is provided with connecting hole (11) with spacing, and the vertical plate (21) is detachably connected with the bottom plate (1) by bolt.
9. A television bezel universal machining jig as defined in claim 1 wherein: The distance between the positioning block (23) and the top pressing block (24) is adjustable.
10. A television bezel universal machining jig as defined in claim 1 wherein: Further comprising automatic clamping control system, the automatic clamping control system is connected with the air cylinder (22), and the air cylinder (22) for clamping the same frame body (3) on the adjusting mechanism module (2) can be controlled to be synchronous clamped or loosened.