A hot riveting die for digital tube assembly

Abstract

The utility model discloses a hot riveting die for digital tube assembly, comprising an upper module, a connecting block arranged at the bottom of the upper module, a lower pressing block and a lower module, wherein the lower pressing block and the connecting block are connected by a plurality of springs, the lower pressing block is located above the lower module and is used to press the plastic shell and PCB on the lower module, the lower pressing block is provided with a rivet hole matching the rivet column on the PCB, the bottom of the connecting block is provided with a hot pressing column matching the rivet hole, the hot pressing column is used to perform hot riveting on the rivet column, and the spring is used to realize the downward hot riveting and resetting of the hot pressing column. The utility model can complete the hot riveting operation at one time while realizing the overall comprehensive pressing and fitting of the plastic shell and the PCB, which not only improves the hot riveting efficiency and ensures the assembly effect of the plastic shell and the PCB, but also only requires one person to complete the operation during the entire process, which reduces the labor cost and eliminates the hidden dangers of operation safety.

Description

Technical Field

[0001] The utility model belongs to the field of digital tubes, relates to the assembly of a plastic shell and a PCB, and specifically relates to a hot riveting die for assembling digital tubes. Background Art

[0002] The plastic shell and PCB (circuit board) are the two most important core components in the digital tube. In the assembly of the digital tube, the plastic shell and PCB are assembled and connected by hot riveting. Specifically, the plastic shell is initially installed on the PCB, and then the rivet columns on the PCB are hot riveted. After the hot riveting is completed, the assembly is completed.

[0003] However, in the actual process, the problem is that due to the tolerance of the size of the plastic shell and the PCB, it is difficult to keep the joint surface of the plastic shell and the PCB in contact. In order to meet the assembly requirements, one person needs to perform the hot riveting operation while another person presses the plastic shell with hands or tools to achieve the fit between the plastic shell and the PCB after hot riveting. This method has many disadvantages, as follows:

[0004] 1. Two people are needed to complete the hot riveting operation of the plastic shell and PCB, which has high labor costs.

[0005] 2. In order not to affect the rivet studs, the plastic shell can only be partially pressed down. On the one hand, the plastic shell is prone to deformation and damage. On the other hand, the pressing effect is not very good, and the overall fit cannot be guaranteed, and the ideal assembly effect cannot be achieved.

[0006] 3. Since the size of plastic shells and PCBs is mostly small, the operating space for hot riveting is very limited. The pressing operator will further affect the operating space of the hot riveting operator, which not only affects the efficiency of hot riveting, but also easily burns the pressing operator by mistake, posing a hidden danger to operational safety. Summary of the invention

[0007] Purpose of the invention: In order to overcome the deficiencies in the prior art, a hot riveting mold for digital tube assembly is provided, which can complete the hot riveting operation at one time while realizing the overall pressing and fitting of the plastic shell and the PCB. This not only improves the hot riveting efficiency and ensures the assembly effect of the plastic shell and the PCB, but also only requires one person to complete the operation throughout the process, thus reducing labor costs and eliminating operational safety hazards.

[0008] Technical solution: To achieve the above-mentioned purpose, the utility model provides a hot riveting mold for assembling digital tubes, including an upper module, a connecting block arranged at the bottom of the upper module, a lower pressing block and a lower module, wherein the lower pressing block and the connecting block are connected by a plurality of springs, the lower pressing block is located above the lower module and is used to press the plastic shell and PCB on the lower module, the lower pressing block is provided with rivet holes matching the rivet columns on the PCB, the bottom of the connecting block is provided with hot pressing columns matching the rivet holes, the hot pressing columns are used to hot rivet the rivet columns, and the springs are used to realize the downward hot riveting and resetting of the hot pressing columns.

[0009] Furthermore, the length of the hot pressing column is greater than the length of the rivet hole, ensuring that the hot pressing column can contact the plastic shell to achieve complete hot riveting.

[0010] Furthermore, two ends of the spring are respectively welded and fixed on the lower pressing block and the connecting block.

[0011] Furthermore, four positioning posts are provided on the lower module, and positioning holes matching the positioning posts are provided on the PCB to achieve positioning of the PCB on the lower module.

[0012] Beneficial effects: Compared with the prior art, the utility model has the following advantages:

[0013] 1. Through the coordinated design of the spring, the lower pressing block and the hot pressing column on the mold, the lower pressing block can be used to press and fit the plastic shell and the PCB as a whole. At the same time, all the hot riveting operations can be completed at one time through the hot pressing column by utilizing the spring characteristics, which not only improves the hot riveting efficiency, but also ensures the assembly effect of the plastic shell and the PCB.

[0014] 2. The entire process only requires one person to complete the operation, which reduces labor costs and eliminates operational safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model when it is in a non-working state;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model during the hot riveting operation;

[0017] Figure 3 This is a schematic diagram of the structure of the utility model during the hot riveting operation;

[0018] Figure 4 It is a plan view of the lower pressing block;

[0019] Figure 5 This is a plan view of the lower module. DETAILED DESCRIPTION

[0020] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0021] like Figure 1 to Figure 5 As shown, the utility model provides a hot riveting mold for digital tube assembly, including an upper module 1, a connecting block 2 arranged at the bottom of the upper module 1, a lower pressing block 4 and a lower module 3, the lower pressing block 4 and the connecting block 2 are connected by four springs 6, the two ends of the spring 6 are respectively welded and fixed on the lower pressing block 4 and the connecting block 2, the lower pressing block 4 is provided with a rivet hole 10 matching the rivet column 9 on the PCB 7, in this embodiment, there are 6 rivet columns 9 on the PCB 7, and the lower pressing block 4 is also provided with 6 rivet holes 10, the 6 rivet holes 10 and the 6 rivet columns 9 are respectively provided with a rivet hole 10. Correspondingly, a hot pressing column 5 matching the rivet hole 10 is provided on the bottom of the connecting block 2. In this embodiment, the number of the hot pressing columns 5 is 6, and the length of the hot pressing column 5 is greater than the length of the rivet hole 10. Four positioning columns 31 are provided on the lower module 3, and positioning holes matching the positioning columns 31 are provided on the PCB7 (not shown in the figure). The lower pressing block 4 is located directly above the lower module 3 and is used to press the plastic shell 8 and PCB7 on the lower module 3. The hot pressing column 5 is used to hot rivet the rivet column 9, and the spring 6 is used to realize the downward hot riveting and resetting of the hot pressing column 5.

[0022] In this embodiment, the above-mentioned hot riveting mold is applied to the hot riveting assembly of the plastic shell 8 and the PCB 7 in the digital tube, and the specific operation is as follows:

[0023] First, PCB7 is positioned and placed on the lower module 3 through the positioning column 31, and then the plastic shell 8 is preliminarily installed on the PCB7, so that the rivet column 9 extends out of the plastic shell 8, and the operator moves the upper module 1 downward (here it can be hydraulically driven or manually pressed down by the guide rod), and the lower pressing block 4 also continues to move downward until it is pressed down on the plastic shell 8, and the rivet column 9 penetrates the rivet hole 10 and emerges upward, so as to achieve Figure 2 In the state shown, the upper module 1 will continue to move downward to compress the spring 6, so that the lower pressing block 4 can give sufficient downward pressure to the plastic shell 8 to ensure that the plastic shell 8 can fit tightly with the PCB 7. In this process, the hot pressing column 5 moves downward to contact the rivet column 9 for hot riveting, until the hot pressing column 5 contacts the plastic shell 8 through the rivet hole 10 to achieve complete hot riveting. In this way, the hot riveting of the six rivet columns 9 is completed at one time. Finally, the upper module 1 is released, and under the resetting action of the spring 6, the lower pressing block 4 is separated from the plastic shell 8 upward to complete the entire hot riveting operation.

Claims

1. A hot riveting die for digital tube assembly, characterized in that: It includes an upper module, a connecting block arranged at the bottom of the upper module, a lower pressing block and a lower module. The lower pressing block and the connecting block are connected by a plurality of springs. The lower pressing block is located above the lower module and is used to press the plastic shell and the PCB on the lower module. The lower pressing block is provided with a rivet hole matching the rivet column on the PCB. A hot pressing column matching the rivet hole is provided on the bottom of the connecting block. The hot pressing column is used to perform hot riveting on the rivet column. The spring is used to realize the downward pressing, hot riveting and resetting of the hot pressing column.

2. The hot riveting die for digital tube assembly according to claim 1, characterized in that: The length of the hot pressing column is greater than the length of the rivet hole.

3. The hot riveting die for digital tube assembly according to claim 1, characterized in that: The two ends of the spring are respectively welded and fixed on the lower pressing block and the connecting block.

4. The hot riveting die for digital tube assembly according to claim 1, characterized in that: The lower module is provided with four positioning posts, and the PCB is provided with positioning holes matching the positioning posts.

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