A hot pressing tool for nut installation

Abstract

This application relates to the field of television manufacturing and provides a hot pressing fixture for nut installation, including a worktable, a mounting bracket, and a pressing structure. The worktable has a groove for inserting a rear cover. The mounting bracket is mounted on the worktable. The pressing structure includes a lifting component mounted on the mounting bracket, a pressing plate mounted on the lifting component, and several pressing rods mounted on the pressing plate. The lifting component drives the pressing plate to move vertically, and all pressing rods have heating wires at their ends. This hot pressing fixture for nut installation aims to reduce the occurrence of tilting during the pressing of metal inserts.

Description

Technical Field

[0001] This application relates to the field of television manufacturing, and in particular to a hot pressing tool for nut installation. Background Technology

[0002] As a crucial component of a television set, the quality of its processing and assembly directly impacts the overall performance and appearance of the television. After the back cover is machined, a metal insert (with an internally threaded hole) is inserted into the pre-machined mounting holes to facilitate assembly. This process plays a key role in the overall structural stability of the television and the ease of subsequent assembly. The development of this technology is significant for improving television production efficiency and quality, better meeting the market demand for high-quality televisions.

[0003] In the traditional installation process of metal inserts, the back cover is typically placed on a workbench, and then a worker manually places the metal insert into the mounting hole using tweezers, ensuring that its axis is coaxial with the axis of the mounting block. Afterwards, the worker uses a thermoforming device (a pressure block with an internal heating wire) to press the metal insert into the mounting hole, thus completing the installation. This method requires workers to rely on their experience and skill to place the metal insert and perform the thermoforming operation; the entire process depends on manual operation. Furthermore, precise adjustment of the metal insert's position and angle is required during placement, and the downward pressure of the thermoforming device also needs to be manually controlled during thermoforming.

[0004] This method demands a high level of worker skill, especially since the vertical pressing angle during the pressing process is difficult to control precisely. If the hot press equipment tilts when pressing the metal insert, the back cover will be scrapped, resulting in material waste and increased production costs. Therefore, a hot press fixture capable of precisely controlling the pressing angle of the pressing rod is needed. Utility Model Content

[0005] To reduce the occurrence of misalignment during the pressing of metal inserts, this application provides a hot pressing tool for nut installation.

[0006] The hot pressing tool for nut installation provided in this application adopts the following technical solution: A hot pressing fixture for nut installation includes a worktable, a mounting frame, and a pressing structure. The worktable has a groove for inserting a rear cover. The mounting frame is mounted on the worktable. The pressing structure includes a lifting component mounted on the mounting frame, a pressing plate mounted on the lifting component, and several pressing rods mounted on the pressing plate. The lifting component is used to drive the pressing plate to move vertically. All pressing rods have heating wires at their ends.

[0007] By adopting the above technical solution, the slot of the workbench can fix the position of the back cover, the lifting component drives the lower pressure plate and the lower pressure rod to move vertically, and the heating wire at the end of the lower pressure rod can heat press the metal insert, avoiding the instability of manual operation, improving the accuracy and efficiency of metal insert installation, and reducing the scrap rate of the back cover.

[0008] It is important to note that when hot-pressing metal inserts, they must be hot-pressed one by one. That is, after installing one metal insert on the back cover and hot-pressing it with the pressure rod, the next metal insert should be hot-pressed. This avoids the metal inserts from tilting when hot-pressing all the metal inserts at the same time, thus maintaining the processing quality.

[0009] Optionally, the upper surface of the worktable is provided with a quick clamp, which is used to abut against the upper surface of the rear cover workpiece.

[0010] By adopting the above technical solution, the quick clamp abuts against the upper surface of the back cover workpiece, which can stabilize the back cover during the hot pressing process, prevent it from shaking or shifting, improve the accuracy and stability of the metal insert installation, and reduce installation errors caused by changes in the position of the back cover.

[0011] Optionally, one end of the pressure rod is provided with a wire connector, and the pressure plate is provided with an installation groove for inserting the wire connector; the pressure plate is provided with a connecting assembly, which is used to fix the pressure rod to the pressure plate.

[0012] By adopting the above technical solution, a wire connector is provided at one end of the lower pressure rod, and an installation groove is opened on the lower pressure plate for the wire connector to be inserted, which facilitates the power supply to the heating wire; the connecting component facilitates the connection and disassembly of the lower pressure rod and the lower pressure plate, and facilitates the replacement or maintenance of the lower pressure rod.

[0013] Optionally, the connecting assembly includes an internal threaded sleeve and an external threaded sleeve, the internal threaded sleeve being installed on the lower pressure rod, the external threaded sleeve being installed on the lower pressure plate, and the internal threaded sleeve being sleeved on the outer wall of the external threaded sleeve.

[0014] By adopting the above technical solution, the threaded connection between the internal threaded sleeve and the external threaded sleeve can be used to conveniently and securely fix the lower pressure rod to the lower pressure plate, which facilitates the installation and disassembly of the lower pressure rod and improves the assembly efficiency and maintenance convenience of the tooling components.

[0015] Optionally, the connecting assembly includes a first sleeve and a second sleeve, wherein the first sleeve is mounted on the lower pressure plate; the second sleeve is mounted on the lower pressure rod, and the second sleeve is used to fit over the outer wall of the first sleeve. The second sleeve has a movable hole, in which a positioning rod is movably installed. The outer wall of the first sleeve has a positioning groove for the positioning rod to be inserted. One end of the positioning rod is provided with a mounting plate, and the mounting plate and the outer wall of the second sleeve are provided with a spring. The spring force is used to drive the positioning rod to be inserted into the positioning groove in the normal state.

[0016] By adopting the above technical solution, the second sleeve is fitted onto the outer wall of the first sleeve. The positioning rod in the movable hole is normally inserted into the positioning groove under the action of the spring force, which can stably connect the lower pressure rod and the lower pressure plate. Moreover, this structure can realize the quick connection between the lower pressure rod and the lower pressure plate, improving the efficiency of disassembly and assembly.

[0017] Optionally, an unlocking sleeve is slidably installed on the outer wall of the second sleeve. The side of the unlocking sleeve away from the second sleeve is designated as the unlocking surface, which is used for the mounting plate to abut against the side of the second sleeve. The side of the unlocking sleeve near the mounting plate is provided with a guide surface for guiding the mounting plate and the second sleeve to abut against the unlocking surface.

[0018] By adopting the above technical solution, the sliding unlocking sleeve is slidable, and the mounting plate moves away from the second sleeve under the guidance of the guide surface and abuts against the unlocking surface, driving the positioning rod to disengage from the positioning groove, which facilitates the removal of the lower pressure rod and the lower pressure plate.

[0019] Optionally, multiple sets of positioning rods are provided, and the positioning groove is configured as an annular groove.

[0020] By adopting the above technical solution and setting multiple sets of positioning rods, a stable connection between the pressure rod and the pressure plate can be achieved.

[0021] Optionally, the workbench includes an operating table and a rotating platform rotatably mounted on the operating table, the slot is formed in the rotating platform, and the operating table is provided with a motor for driving the rotating platform to rotate.

[0022] By adopting the above technical solution, since the left and right halves of the back cover workpiece are symmetrically arranged, the workers usually stand on one side of the operating table to install the metal inserts one by one. After the left half of the metal insert is hot-pressed, the motor can be used to drive the rotating table to change the direction of the back cover workpiece, which makes it easier for the workers to hot-press the right half of the back cover workpiece and avoids the workers from walking to the other side of the operating table.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. The worktable has a groove for the back cover to be inserted. The lifting component drives the lower pressure plate and the lower pressure rod to move vertically. The heating wire at the end of the lower pressure rod heats the metal insert to achieve hot pressing. This avoids the problem of the metal insert being misaligned and the back cover being scrapped when the hot pressing equipment is manually held down, which is difficult to control the angle. This improves the installation accuracy and product qualification rate. 2. The workbench can rotate under the drive of a motor, which makes it easy to adjust the position of the back cover and improves installation efficiency. Attached Figure Description

[0024] Figure 1 This is a structural diagram of the back cover; Figure 2 This is a schematic diagram of the structure of Example 1; Figure 3 This is a schematic diagram of the connection component in Embodiment 2; Figure 4 This is a schematic diagram of the connection component in Embodiment 3; Figure 5 This is a structural schematic diagram of Example 4.

[0025] Explanation of reference numerals in the attached drawings: 1. Workbench; 11. Slot; 12. Quick clamp; 13. Controller; 14. Operating table; 15. Rotating table; 2. Mounting bracket; 3. Pressing structure; 31. Lifting component; 32. Pressing plate; 33. Pressing rod; 34. Guide connector; 35. Mounting slot; 4. Rear cover; 41. Mounting hole; 5. Connecting assembly; 51. Internal threaded sleeve; 52. External threaded sleeve; 53. First sleeve; 531. Positioning slot; 54. Second sleeve; 541. Movable hole; 55. Positioning rod; 56. Mounting plate; 57. Spring; 58. Unlocking sleeve; 581. Unlocking surface; 582. Guide surface. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0027] Example 1: This application discloses a hot-pressing fixture for nut installation, used for machining the back cover 4 of a television set, as shown in the following embodiment. Figure 1 The back cover 4 is square in shape; the back cover 4 has mounting holes 41 on its periphery, which are used to install metal inserts; the back cover 4 has a left half and a right half, and the left half and the right half are symmetrically arranged.

[0028] Reference Figure 2 A hot-pressing fixture for nut installation includes a worktable 1, a mounting bracket 2, and a pressing structure 3. The mounting bracket 2 is mounted on the worktable 1, and the pressing structure 3 is mounted on the mounting bracket 2. The worktable 1 has a groove 11 for inserting a rear cover 4. The shape and size of the groove 11 are adapted to the rear cover 4, enabling accurate positioning of the rear cover 4. Its depth and width are designed according to the actual dimensions of the rear cover 4. The function of the groove 11 is to ensure the position of the rear cover 4 is fixed during installation, preventing it from moving or shaking during hot pressing, thereby ensuring the accuracy of nut installation.

[0029] A quick clamp 12 is provided on the upper surface of the worktable 1. The quick clamp 12 is used to abut against the upper surface of the rear cover 4 workpiece. The quick clamp 12 can be a manually operated clamp, which has a simple structure and is easy to operate. The function of the quick clamp 12 is to fix the rear cover 4 on the worktable 1 after it is placed on the worktable 1, thereby further enhancing the stability of the rear cover 4 and preventing it from shifting during the hot pressing process.

[0030] The pressing structure 3 includes a lifting component 31 installed on the mounting frame 2, a pressing plate 32 installed on the lifting component 31, and a plurality of pressing rods 33 installed on the pressing plate 32. The positions of the plurality of pressing rods 33 are arranged directly opposite to the mounting holes 41 of the rear cover 4.

[0031] The lifting component 31 is used to drive the lower pressure plate 32 to move vertically. The lifting component 31 can be a cylinder or an electric push rod, which drives its telescopic rod to move linearly through air pressure or electricity, thereby driving the lower pressure plate 32 to move up and down. The side of the lower pressure rod 33 away from the lower pressure plate 32 is provided with an electric heating wire, so as to heat the end of the lower pressure rod 33 to facilitate the hot pressing of the metal insert. The worktable 1 is provided with a controller 13, which is used to control the output shaft of the lifting component 31 so that the lower pressure plate 32 can move vertically up and down.

[0032] It is important to note that when hot pressing metal inserts, they must be hot pressed one by one; that is, after one metal insert is installed on the back cover 4 and hot pressed using the pressing rod 33, the next metal insert is hot pressed. This avoids the metal inserts from tilting when hot pressing all the metal inserts at the same time, thus maintaining the processing quality.

[0033] The implementation principle of Embodiment 1 of this application is as follows: The slot 11 of the workbench 1 can fix the position of the back cover 4. The lifting component 31 drives the lower pressure plate 32 and the lower pressure rod 33 to move vertically. The heating wire at the end of the lower pressure rod 33 can heat press the metal insert, avoiding the instability of manual operation, improving the accuracy and efficiency of metal insert installation, and reducing the scrap rate of the back cover 4.

[0034] Example 2: This application discloses a hot pressing fixture for nut installation.

[0035] Reference Figure 3The difference between Embodiment 2 and Embodiment 1 is that: one end of the pressure rod 33 is provided with a wire connector, which can be a metal plug, and it is connected to the heating wire inside the pressure rod 33; the pressure plate 32 has a mounting groove 35 for inserting the wire connector, the shape and size of which are adapted to the wire connector to ensure that the wire connector is accurately inserted into the mounting groove 35. The pressure plate 32 is provided with a connecting component 5, which securely fixes the pressure rod 33 to the pressure plate 32 and ensures a stable electrical connection between the wire connector and the mounting groove 35.

[0036] In this embodiment, the connecting component 5 includes an internally threaded sleeve 51 and an externally threaded sleeve 52. The internally threaded sleeve 51 is installed on the lower pressure rod 33, and the externally threaded sleeve 52 is installed on the lower pressure plate 32, with the internally threaded sleeve 51 fitted onto the outer wall of the externally threaded sleeve 52. The internally threaded sleeve 51 and the externally threaded sleeve 52 can be made of metal and are connected by threaded engagement. This connection method is simple and reliable, and facilitates the installation and removal of the lower pressure rod 33.

[0037] Example 3: This application discloses a hot pressing fixture for nut installation.

[0038] Reference Figure 4 The difference between Embodiment 3 and Embodiment 2 is that the connecting component 5 may include a first sleeve 53 and a second sleeve 54. The first sleeve 53 is installed on the lower pressure plate 32; the second sleeve 54 is installed on the lower pressure rod 33 and is used to fit the outer wall of the first sleeve 53; the first sleeve 53 and the second sleeve 54 may be metal tubes, which can maintain the structural strength of the first sleeve 53 and the second sleeve 54.

[0039] The second sleeve 54 has multiple movable holes 541, all of which are spaced apart along the outer periphery of the second sleeve. A positioning rod 55 is movably installed in the movable hole 541, and the outer wall of the first sleeve 53 has a positioning groove 531 for the positioning rod 55 to be inserted. The positioning groove 531 is an annular groove, which allows the positioning rod 55 to be quickly inserted into the positioning groove 531 when the second sleeve 54 is fitted onto the outer wall of the first sleeve 53, thereby improving installation efficiency.

[0040] A mounting plate 56 is provided at the end of the positioning rod 55 away from the positioning groove 531. A spring 57 is sleeved on the outer wall of the positioning rod 55. The two ends of the spring 57 are connected to the second sleeve 54 and the mounting plate 56 respectively. The elastic force of the spring 57 can drive the positioning rod 55 to be inserted into the positioning groove 531 under normal conditions, thereby improving the stability of the pressure rod 33 installed on the pressure plate 32.

[0041] An unlocking sleeve 58 is slidably mounted on the outer wall of the second sleeve 54. The side of the unlocking sleeve 58 away from the second sleeve 54 is designated as an unlocking surface 581, which is used to abut against the side of the mounting plate 56 near the second sleeve 54. A guide surface 582 is provided on the side of the unlocking sleeve 58 near the mounting plate 56 to guide the mounting plate 56 and the second sleeve 54 to abut against the unlocking surface 581. The unlocking sleeve 58 can be a metal ring, with its inner wall slidingly engaged with the outer wall of the second sleeve 54.

[0042] When it is necessary to remove the pressure rod 33, push the unlocking sleeve 58, and the unlocking surface 581 abuts against the mounting plate 56, overcoming the elastic force of the spring 57, and pull the positioning rod 55 out of the positioning groove 531. The function of the guide surface 582 is to guide the mounting plate 56 to smoothly abut against the unlocking surface 581 when the unlocking sleeve 58 is pushed.

[0043] Example 4: This application discloses a hot pressing fixture for nut installation.

[0044] Reference Figure 5 The difference between Embodiment 4 and Embodiment 1 is that: the workbench 1 includes an operating table 14 and a rotating table 15 rotatably mounted on the operating table 14, and the controller 13 is mounted on the operating table 14; the slot 11 is opened in the rotating table 15, and the operating table 14 is provided with a motor for driving the rotating table 15 to rotate.

[0045] Workers typically stand on one side of the operating table 14 to install metal inserts one by one. After hot pressing the left half of the metal inserts, the rotating table 15 can be rotated by a motor to change the orientation of the back cover 4 workpiece, making it easier for workers to hot press the right half of the back cover 4 workpiece structure and avoiding workers having to walk to the other side of the operating table 14.

[0046] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A hot-pressing jig for nut mounting, characterized by: The device includes a workbench (1), a mounting frame (2), and a pressing structure (3). The workbench (1) has a groove (11) for inserting the rear cover (4). The mounting frame (2) is installed on the workbench (1). The pressing structure (3) includes a lifting component (31) installed on the mounting frame (2), a pressing plate (32) installed on the lifting component (31), and several pressing rods (33) installed on the pressing plate (32). The lifting component (31) is used to drive the pressing plate (32) to move vertically. All pressing rods (33) have heating wires at their ends.

2. The hot-pressing tool for nut mounting according to claim 1, characterized in that: The upper surface of the workbench (1) is provided with a quick clamp (12), which is used to abut against the upper surface of the workpiece of the rear cover (4).

3. The hot-pressing tool for nut mounting according to claim 1, characterized in that: One end of the pressure rod (33) is provided with a wire connector, and the pressure plate (32) is provided with an installation groove (35) for inserting the wire connector; the pressure plate (32) is provided with a connecting component (5), which is used to fix the pressure rod (33) and the pressure plate (32).

4. The hot-pressing tool for nut mounting according to claim 3, characterized in that: The connecting assembly (5) includes an internal threaded sleeve (51) and an external threaded sleeve (52). The internal threaded sleeve (51) is installed on the lower pressure rod (33), and the external threaded sleeve (52) is installed on the lower pressure plate (32). The internal threaded sleeve (51) is sleeved on the outer wall of the external threaded sleeve (52).

5. The hot-pressing tool for nut mounting according to claim 3, characterized in that: The connecting assembly (5) includes a first sleeve (53) and a second sleeve (54). The first sleeve (53) is installed on the lower pressure plate (32); the second sleeve (54) is installed on the lower pressure rod (33), and the second sleeve (54) is used to fit the outer wall of the first sleeve (53). The second sleeve (54) has a movable hole (541), in which a positioning rod (55) is movably installed. The outer wall of the first sleeve (53) has a positioning groove (531) for the positioning rod (55) to be inserted. One end of the positioning rod (55) is provided with a mounting plate (56), and the mounting plate (56) and the outer wall of the second sleeve (54) are provided with a spring (57). The elastic force of the spring (57) is used to drive the positioning rod (55) to be inserted into the positioning groove (531) under normal conditions.

6. The hot-pressing tool for nut mounting according to claim 5, characterized in that: The second sleeve (54) is slidably mounted with an unlocking sleeve (58) on its outer wall. The side of the unlocking sleeve (58) away from the second sleeve (54) is designated as an unlocking surface (581). The unlocking surface (581) is used for the mounting plate (56) to abut against the side of the second sleeve (54). The side of the unlocking sleeve (58) near the mounting plate (56) is provided with a guide surface (582) for guiding the mounting plate (56) and the second sleeve (54) to abut against the unlocking surface (581).

7. The hot-pressing tool for nut mounting according to claim 5, characterized in that: The positioning rod (55) is provided in multiple sets, and the positioning groove (531) is provided as an annular groove.

8. The hot-pressing tool for nut mounting according to claim 1, characterized by: The workbench (1) includes an operating table (14) and a rotating table (15) rotatably mounted on the operating table (14). The slot (11) is opened on the rotating table (15). The operating table (14) is provided with a motor for driving the rotating table (15) to rotate.

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