PCB mainboard preheating device

Abstract

The utility model relates to the technical field of PCB board processing, and discloses a PCB mainboard preheating device, which comprises a clamping assembly, a fixing assembly and a sealing assembly, the clamping assembly is arranged on one side of the sealing assembly, the clamping assembly comprises a lower clamping block, a first spring is connected in the lower clamping block, the first spring is connected with a push plate, and the push plate is connected with the fixing assembly. And one side of the lower clamping block is connected with a pressing column, the lower clamping block is connected with an upper clamping block through a formed groove, the upper clamping block is connected with an extrusion plate, and one end of the extrusion plate is connected with a second spring. According to the PCB preheating device, the PCBs can be fixed preferentially, and the PCBs of different sizes can be preheated after being fixed, so that the flexibility of the PCB preheating device is greatly improved, the overall sealing performance can be further improved and heat leakage can be prevented when the PCBs are preheated, the overall heat preservation effect is better, and the preheating effect on the PCBs is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board processing, in particular to a PCB mainboard preheating device. Background Art

[0002] With the rapid development of the electronics industry, PCB, as the core component of electronic equipment, its production quality and efficiency are of vital importance. In the production process of PCB, preheating is a key step, which has a vital impact on subsequent welding, patch, assembly and other links.

[0003] After searching, the prior art (application number: CN202223584767.2) records that "a PCB mainboard preheating device comprises: a lower preheating shell and an upper preheating shell, the upper preheating shell and the upper preheating shell being rotatably connected to each other, a plurality of fixed blocks arranged inside the upper and lower preheating shells and spaced along the length direction of the upper and upper preheating shells, a heating tube being installed between the fixed blocks, a bearing seat for placing the PCB mainboard is arranged inside the lower preheating shell and above the heating tube, a plurality of convex blocks are installed on the side of the upper preheating shell, and a plurality of concave blocks for use with the convex blocks are installed on the side of the lower preheating shell, and a locking mechanism is provided on the concave block for locking the convex block after the convex block is inserted into the concave block." This utility model PCB mainboard preheating device realizes the locking of the upper and upper preheating shells, improves the overall airtightness, is beneficial to the overall heat preservation, and improves the uniformity of temperature distribution, thereby improving the overall preheating effect.

[0004] However, although the existing technology improves the overall sealing performance, facilitates overall heat preservation, improves the uniformity of temperature distribution, and thus improves the overall preheating effect, it still has some shortcomings: the existing PCB mainboard preheating device is often unable to fix and clamp PCBs of different sizes during use, reducing the flexibility of the PCB board preheating device. In addition, the existing technology adds a sealing component to the locking mechanism, which may cause heat to dissipate, resulting in a poor sealing effect and a reduction in the overall preheating effect. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a PCB mainboard preheating device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a PCB mainboard preheating device, comprising a clamping assembly, a fixing assembly and a sealing assembly, wherein the clamping assembly is arranged on one side of the sealing assembly, and the clamping assembly comprises a lower clamping block, and a first spring is connected to the interior of the lower clamping block, and the first spring is connected to a push plate, one side of the lower clamping block is connected to a pressing column, and the lower clamping block is connected to an upper clamping block through a groove, the upper clamping block is connected to an extrusion plate, and one end of the extrusion plate is connected to a second spring, and the second spring is connected to a wedge block, and the wedge block is connected to a slide groove through a slider;

[0007] The fixing assembly is arranged inside the sealing assembly, and the fixing assembly includes a fixing column, and the fixing column is connected to the first sliding plate, one end of the first sliding plate is connected to a tightening spring, and the tightening spring is connected to the second sliding plate, and the middle of the second sliding plate is connected to a connecting column, and one end of the connecting column is connected to a handle, the middle of the fixing column is connected to the first rotating column, and the first rotating column is connected to the second rotating column through the connecting plate, the sealing assembly is arranged on the outside of the fixing assembly, and the sealing assembly includes a lower preheating shell, and one side of the lower preheating shell is connected to the upper preheating shell, a heating pipe is provided inside the upper preheating shell, a sealing gasket is provided on the inner side of the upper preheating shell, and a sealing groove is provided on the inner side of the lower preheating shell, and the sealing gasket is connected to the sealing groove.

[0008] As a further description of the above technical solution:

[0009] The fixed column is fixedly connected to the lower preheating shell, the middle part of the first sliding plate is slidably connected to the fixed column, and the end of the first sliding plate away from the fixed column is fixedly connected to the tightening spring, and the end of the tightening spring away from the first sliding plate is fixedly connected to the second sliding plate.

[0010] As a further description of the above technical solution:

[0011] The connecting column is fixedly connected to the middle part of the second sliding plate, and the middle part of the second sliding plate is slidably connected to the fixed column, and one end of the connecting column away from the second sliding plate is fixedly connected to the handle, and the connecting column is slidably connected to the lower preheating shell.

[0012] As a further description of the above technical solution:

[0013] The first rotating column is rotatably connected to the fixed column, and the first rotating column is fixedly connected to the middle part of the connecting plate, and one end of the connecting plate away from the first rotating column is fixedly connected to the second rotating column, and the second rotating column slides and rotatably connected to the groove provided on the second sliding plate.

[0014] As a further description of the above technical solution:

[0015] The lower clamping block is fixedly connected to the lower preheating shell, the first spring is fixedly connected to the groove provided inside the lower clamping block, and the end of the first spring away from the lower clamping block is fixedly connected to the push plate, and at the same time, a pressing column is slidably connected to the groove provided on one side of the lower clamping block.

[0016] As a further description of the above technical solution:

[0017] The upper clamping block is fixedly connected to the upper preheating shell, and a sliding groove is provided on one side of the upper clamping block close to the lower clamping block.

[0018] As a further description of the above technical solution:

[0019] The wedge block is slidably connected in the slide groove through a fixedly connected slider, and the end of the wedge block away from the slider is fixedly connected to the second spring, and the end of the second spring away from the wedge block is fixedly connected to the extrusion plate, and the end of the extrusion plate close to the slide groove is fixedly connected to the upper clamping block.

[0020] As a further description of the above technical solution:

[0021] One end of the lower preheating shell away from the lower clamping block is hinged to the upper preheating shell through a hinge shaft, and a sealing gasket provided on the upper preheating shell is slidably connected to a sealing groove provided on the lower preheating shell for sealing.

[0022] As a further description of the above technical solution:

[0023] The heating pipes are fixedly connected to the interior of the upper preheating shell, and two groups of heating pipes are symmetrically arranged.

[0024] The utility model has the following beneficial effects:

[0025] 1. By manually pulling the handle, the connecting column pulls the second sliding plate to slide on the fixed column, thereby lengthening the tightening spring, and placing the PCB on the fixed column. Stop pulling the handle, and the rebound force of the tightening spring drives the first and second sliding plates to move inward to clamp and fix the PCB. This allows the PCB to be fixed first during preheating, and allows PCBs of different sizes to be preheated after being fixed, thereby greatly improving the flexibility of the PCB preheating device.

[0026] 2. By turning the upper preheating shell downward, the upper preheating shell is covered on the lower preheating shell, and the wedge block is clamped in the groove inside the lower clamping block to connect the upper preheating shell with the lower preheating shell. The sealing gasket provided on the upper preheating shell and the sealing groove provided on the lower preheating shell can further increase the overall sealing when preheating the PCB board, prevent heat leakage, thereby improving the overall thermal insulation effect and enhancing the preheating effect of the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of a PCB mainboard preheating device proposed by the utility model;

[0028] Figure 2 This is a partial cross-sectional structural diagram of a PCB mainboard preheating device proposed by the present invention;

[0029] Figure 3 This is a partial structural diagram of a PCB mainboard preheating device proposed by the utility model;

[0030] Figure 4 This is a schematic diagram of the partial explosion structure of a PCB mainboard preheating device proposed by the utility model.

[0031] Legend:

[0032] 1. Clamping assembly; 2. Fixing assembly; 3. Sealing assembly; 101. Lower clamping block; 102. First spring; 103. Push plate; 104. Pressing column; 105. Upper clamping block; 106. Extrusion plate; 107. Second spring; 108. Wedge block; 109. Slider; 110. Slide groove; 201. Fixing column; 202. First sliding plate; 203. Tightening spring; 204. Second sliding plate; 205. Connecting column; 206. Handle; 207. First rotating column; 208. Connecting plate; 209. Second rotating column; 301. Lower preheating shell; 302. Upper preheating shell; 303. Heating tube; 304. Sealing gasket; 305. Sealing groove. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Reference Figures 1-4 The utility model provides a PCB mainboard preheating device, including a clamping component 1, a fixing component 2 and a sealing component 3.

[0035] Specifically, the clamping assembly 1 is provided on one side of the sealing assembly 3, and the clamping assembly 1 includes a lower clamping block 101, and the lower clamping block 101 is internally connected to a first spring 102, and the first spring 102 is connected to a push plate 103, and one side of the lower clamping block 101 is connected to a pressing column 104, and the lower clamping block 101 is connected to an upper clamping block 105 through a groove provided, and the upper clamping block 105 is connected to an extrusion plate 106, and one end of the extrusion plate 106 is connected to a second spring 107, and the second spring 107 is connected to a wedge block 108, and the wedge block 108 is connected to a slide groove 110 through a slider 109;

[0036] The fixing assembly 2 is arranged inside the sealing assembly 3, and the fixing assembly 2 includes a fixing column 201, and the fixing column 201 is connected to the first sliding plate 202, one end of the first sliding plate 202 is connected to the tightening spring 203, and the tightening spring 203 is connected to the second sliding plate 204, and the middle of the second sliding plate 204 is connected to the connecting column 205, and one end of the connecting column 205 is connected to the handle 206, the middle of the fixing column 201 is connected to the first rotating column 207, and the first rotating column 207 is connected to the first rotating column 207. The column 207 is connected to the second rotating column 209 through the connecting plate 208. The sealing assembly 3 is arranged on the outside of the fixed assembly 2, and the sealing assembly 3 includes a lower preheating shell 301, and one side of the lower preheating shell 301 is connected to the upper preheating shell 302. A heating tube 303 is provided inside the upper preheating shell 302, and a sealing gasket 304 is provided on the inner side of the upper preheating shell 302. At the same time, a sealing groove 305 is provided on the inner side of the lower preheating shell 301, and the sealing gasket 304 is connected to the sealing groove 305.

[0037] In this embodiment, the clamping assembly 1, the fixing assembly 2 and the sealing assembly 3 constitute the PCB mainboard preheating device involved in this application, which realizes the function of preheating the PCB mainboard after fixing it.

[0038] In this embodiment, the PCB motherboard involved has a square structure in appearance, and the PCB motherboard serves as a supporting platform for electronic components and can carry various electronic components, such as resistors, capacitors, transistors, chips, diodes, triodes, etc. These components, through a specific layout and connection method, together constitute a complete circuit system.

[0039] In this embodiment, two groups of heating tubes 303 are symmetrically provided, one group is provided in the upper preheating shell 302, and the other group is provided in the lower preheating shell 301, and both groups of heating tubes 303 are operated to generate heat through power supplied by batteries.

[0040] It should be noted that the shape of the sealing gasket 304 is the same as the shape of the sealing groove 305 provided on the lower preheating shell 301. When the upper preheating shell 302 is covered on the lower preheating shell 301, the sealing gasket 304 can be slidably connected to the sealing groove 305 to prevent heat leakage.

[0041] Specifically, the fixing post 201 is fixedly connected to the lower preheating shell 301, the middle part of the first sliding plate 202 is slidably connected to the fixing post 201, and the end of the first sliding plate 202 away from the fixing post 201 is fixedly connected to the tightening spring 203, and the end of the tightening spring 203 away from the first sliding plate 202 is fixedly connected to the second sliding plate 204, the connecting post 205 is fixedly connected to the middle part of the second sliding plate 204, and the middle part of the second sliding plate 204 is slidably connected to the fixing post 201, and The end of the connecting column 205 away from the second sliding plate 204 is fixedly connected to the handle 206, and the connecting column 205 is slidably connected to the lower preheating shell 301. The first rotating column 207 is rotatably connected to the fixed column 201, and the first rotating column 207 is fixedly connected to the middle of the connecting plate 208. The end of the connecting plate 208 away from the first rotating column 207 is fixedly connected to the second rotating column 209. At the same time, the second rotating column 209 is slidably and rotatably connected to the groove provided on the second sliding plate 204.

[0042] As a preferred embodiment, the fixing columns 201 are symmetrically provided with multiple groups for placing PCB boards, and the tightening springs 203 are symmetrically provided with two groups for pulling the first sliding plate 202 and the second sliding plate 204 to move inward to clamp the PCB board.

[0043] As a preferred embodiment, the handle 206 is provided with a finger groove for placing fingers, and the handle 206 can be pulled to move the first sliding plate 202 and the second sliding plate 204 outward respectively through the connecting plate 208.

[0044] Specifically, the lower clamping block 101 is fixedly connected to the lower preheating shell 301, the first spring 102 is fixedly connected to the groove provided inside the lower clamping block 101, and the end of the first spring 102 away from the lower clamping block 101 is fixedly connected to the push plate 103, and at the same time, a pressing column 104 is slidably connected in the groove provided on one side of the lower clamping block 101, the upper clamping block 105 is fixedly connected to the upper preheating shell 302, and a sliding groove 110 is provided on the side of the upper clamping block 105 close to the lower clamping block 101, the wedge block 108 is slidably connected to the sliding groove 110 through a fixedly connected slider 109, and the wedge block 108 is away from the slider 1 09 is fixedly connected to the second spring 107, and the end of the second spring 107 away from the wedge block 108 is fixedly connected to the extrusion plate 106. At the same time, the end of the extrusion plate 106 close to the slide groove 110 is fixedly connected to the upper clamping block 105. The end of the lower preheating shell 301 away from the lower clamping block 101 is hinged to the upper preheating shell 302 through a hinge shaft, and the sealing gasket 304 provided on the upper preheating shell 302 is slidably connected to the sealing groove 305 provided on the lower preheating shell 301 for sealing. The heating tube 303 is fixedly connected to the interior of the upper preheating shell 302, and the heating tube 303 is symmetrically provided in two groups.

[0045] As a preferred embodiment, the sliding groove 110 is used to allow the slider 109 to slide inward in the sliding groove 110 to limit the position when the upper clamping block 105 is clamped in the groove provided on the lower clamping block 101.

[0046] It should be noted that there are two groups of pressing columns 104 symmetrically provided and both are slidably connected to the lower clamping block 101. At the same time, pressing the pressing column 104 inward causes the wedge block 108 to squeeze the second spring 107 to contract, and the elastic force of the first spring 102 pushes the pushing plate 103 to move, thereby pushing the squeezing plate 106 to slide out of the groove provided on the lower clamping block 101.

[0047] When in use, when preheating the PCB board, the handle is manually pulled to pull the second sliding plate on the fixed post through the connecting post, thereby driving the first sliding plate and the second sliding plate to move outward synchronously through the second rotating posts provided at both ends of the connecting plate, thereby stretching the tightening spring, placing the PCB board on the fixed post, stopping pulling the handle, and the first sliding plate and the second sliding plate are driven by the rebound force of the tightening spring to move inward to clamp the PCB board for fixation. At this time, the upper preheating shell is flipped down, and the upper preheating shell is covered on the lower preheating shell, and the wedge block is clamped in the groove inside the lower clamping block, so that the upper preheating shell and the lower preheating shell are connected and fixed to prevent heat dissipation, and the sealing gasket provided on the upper preheating shell and the sealing groove provided on the lower preheating shell can further enhance the sealing during preheating of the PCB board.

[0048] The PCB mainboard preheating device of the present invention can prioritize fixing the PCB board when preheating the PCB board, and can preheat PCB boards of different sizes after fixing them, thereby greatly improving the flexibility of the PCB board preheating device. It can also further enhance the overall sealing when preheating the PCB board to prevent heat leakage, thereby achieving a better overall thermal insulation effect and improving the preheating effect of the PCB board.

[0049] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A PCB mainboard preheating device, characterized by: The invention comprises a clamping assembly (1), a fixing assembly (2) and a sealing assembly (3), wherein the clamping assembly (1) is arranged on one side of the sealing assembly (3), and the clamping assembly (1) comprises a lower clamping block (101), and the lower clamping block (101) is internally connected with a first spring (102), and the first spring (102) is connected with a push plate (103), one side of the lower clamping block (101) is connected with a pressing column (104), and the lower clamping block (101) is connected with an upper clamping block (105) through a groove provided therein, the upper clamping block (105) is connected with an extrusion plate (106), and one end of the extrusion plate (106) is connected with a second spring (107), and the second spring (107) is connected with a wedge block (108), and the wedge block (108) is connected with a slide groove (110) through a slider (109); The fixing assembly (2) is arranged inside the sealing assembly (3), and the fixing assembly (2) includes a fixing column (201), and the fixing column (201) is connected to a first sliding plate (202), one end of the first sliding plate (202) is connected to a tightening spring (203), and the tightening spring (203) is connected to a second sliding plate (204), and the middle of the second sliding plate (204) is connected to a connecting column (205), and one end of the connecting column (205) is connected to a handle (206), the middle of the fixing column (201) is connected to a first rotating column (207), and the first rotating column (207) is connected to a second rotating column (209) through a connecting plate (208), the sealing component (3) is arranged on the outside of the fixed component (2), and the sealing component (3) includes a lower preheating shell (301), and one side of the lower preheating shell (301) is connected to an upper preheating shell (302), a heating pipe (303) is provided inside the upper preheating shell (302), a sealing gasket (304) is provided on the inner side of the upper preheating shell (302), and a sealing groove (305) is provided on the inner side of the lower preheating shell (301), and the sealing gasket (304) is connected to the sealing groove (305).

2. A PCB mainboard preheating device according to claim 1, characterized in that: The fixed column (201) is fixedly connected to the lower preheating shell (301), the middle part of the first sliding plate (202) is slidably connected to the fixed column (201), and the end of the first sliding plate (202) away from the fixed column (201) is fixedly connected to the tightening spring (203), and the end of the tightening spring (203) away from the first sliding plate (202) is fixedly connected to the second sliding plate (204).

3. A PCB mainboard preheating device according to claim 2, characterized in that: The connecting column (205) is fixedly connected to the middle part of the second sliding plate (204), and the middle part of the second sliding plate (204) is slidably connected to the fixed column (201), and one end of the connecting column (205) away from the second sliding plate (204) is fixedly connected to the handle (206), and the connecting column (205) is slidably connected to the lower preheating shell (301).

4. A PCB mainboard preheating device according to claim 3, characterized in that: The first rotating column (207) is rotatably connected to the fixed column (201), and the first rotating column (207) is fixedly connected to the middle of the connecting plate (208), and one end of the connecting plate (208) away from the first rotating column (207) is fixedly connected to the second rotating column (209), and the second rotating column (209) is slidably and rotatably connected to the groove provided on the second sliding plate (204).

5. A PCB mainboard preheating device according to claim 4, characterized in that: The lower clamping block (101) is fixedly connected to the lower preheating shell (301), the first spring (102) is fixedly connected to a groove provided inside the lower clamping block (101), and one end of the first spring (102) away from the lower clamping block (101) is fixedly connected to the push plate (103), and a pressing column (104) is slidably connected to a groove provided on one side of the lower clamping block (101).

6. A PCB mainboard preheating device according to claim 5, characterized in that: The upper clamping block (105) is fixedly connected to the upper preheating shell (302), and a sliding groove (110) is provided on one side of the upper clamping block (105) close to the lower clamping block (101).

7. A PCB mainboard preheating device according to claim 6, characterized in that: The wedge block (108) is slidably connected to the slide groove (110) through a fixedly connected slider (109), and the end of the wedge block (108) away from the slider (109) is fixedly connected to the second spring (107), and the end of the second spring (107) away from the wedge block (108) is fixedly connected to the extrusion plate (106), and the end of the extrusion plate (106) close to the slide groove (110) is fixedly connected to the upper clamping block (105).

8. A PCB mainboard preheating device according to claim 7, characterized in that: One end of the lower preheating shell (301) away from the lower clamping block (101) is hinged to the upper preheating shell (302) via a hinge shaft, and a sealing gasket (304) provided on the upper preheating shell (302) is slidably connected to a sealing groove (305) provided on the lower preheating shell (301) for sealing.

9. A PCB mainboard preheating device according to claim 8, characterized in that: The heating tubes (303) are fixedly connected to the interior of the upper preheating shell (302), and two groups of heating tubes (303) are symmetrically provided.

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