CN216123055U

CN216123055U - Clamping tool for PCB (printed circuit board) surface mounting

Info

Publication number: CN216123055U
Application number: CN202121905175.9U
Authority: CN
Inventors: 方虎
Original assignee: Xinjinxin Tianjin Electronic Technology Co ltd
Current assignee: Xinjinxin Tianjin Electronic Technology Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-03-22
Anticipated expiration: 2031-08-16

Abstract

The utility model discloses a clamping tool for PCB (printed circuit board) chip mounting, which comprises a base, wherein the upper surface of the base is provided with a sliding chute, a sliding block is movably arranged in the sliding groove, a fixing device is arranged in the middle of the inner side of the sliding block, a first spring is arranged in the fixing device, a buckle is arranged in the sliding block close to the upper end, a pull rod is movably arranged in the fixing device, a fixing rod is movably arranged on the upper side of the sliding block, the clamping tool for PCB plate surface mounting achieves the aim that the clamping tool can flexibly move according to the surface mounting operation requirement when in use by arranging the communicated sliding groove, through setting up slider, fixing device, first spring, pull rod, buckle, connecting axle, drag hook and limiting plate, reach and make the clamping frock remove the back that targets in place, can carry out the effect of closely laminating with the upper surface of base.

Description

Clamping tool for PCB (printed circuit board) surface mounting

Technical Field

The utility model relates to the technical field of PCB (printed circuit board) manufacturing, in particular to a clamping tool for PCB surface mounting.

Background

The PCB is an important electronic component, a support for electronic components, and a carrier for electrical interconnection of electronic components. The SMT paster is a surface mounting technology and is also the most popular technology and process in the electronic assembly industry, the operation process of the SMT paster comprises silk screen printing, mounting, reflow soldering, cleaning, detecting and repairing, wherein the specific operation of the mounting step is to accurately mount surface assembly components on fixed positions of a PCB, in the mounting process, the use of a clamping tool is indispensable, but the existing clamping tool for fixing the PCB cannot have the flexibility of movement under the condition of ensuring the stability, the clamping tool with strong mobility has poor stability, except for some PCB, most of the PCB has regular shapes and is convenient to clamp, but some irregular special PCB can not be well fixed by the existing clamping tool, so that the existing clamping tool has certain limitation and lacks practicability, in order to solve the problems, a clamping tool for PCB (printed circuit board) surface mounting is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a clamping tool for PCB (printed circuit board) surface mounting, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a clamping tool for PCB (printed circuit board) chip mounting comprises a base, wherein a chute is arranged on the upper surface of the base, a sliding block is movably mounted in the chute, a fixing device is arranged in the middle of the inner side of the sliding block, a first spring is arranged in the fixing device, a buckle is arranged near the upper end in the sliding block, a pull rod is movably mounted in the fixing device, a fixed rod is movably mounted on the upper side of the sliding block, a limiting plate is arranged near the lower end of the fixed rod, a connecting shaft is arranged in the middle of the lower surface of the fixed rod, drag hooks are symmetrically arranged on the left side and the right side of the lower surface of the fixed rod, a spiral rod is movably mounted on the upper end surface of the fixed rod, a nut is arranged on the upper end surface of the spiral rod, the spiral rod penetrates through the middle of a mounting plate, and a supporting arm is fixedly mounted at one end of the mounting plate, which is near the middle of the base, the lower fixed surface of support arm installs the fixed plate, fixed mounting has the second spring between the lower surface of mounting panel and the up end of dead lever.

Preferably, the number of the sliding blocks in the sliding groove is not less than 4.

Preferably, the lower end of the connecting shaft is fixedly connected with the upper end of the first spring.

Preferably, when the buckle and the draw hook are in a clamping state, the lower end surface of the limiting plate is tightly attached to the upper surface of the base.

Preferably, the diameter of the screw cap is larger than the hole diameter of the screw rod on the mounting plate.

Compared with the prior art, the utility model has the beneficial effects that: the clamping tool for PCB board paster achieves the aim of flexibly moving the clamping tool according to the paster operation requirement when in use by arranging the communicated sliding groove, achieves the effect of tightly fitting with the upper surface of the base after the clamping tool is moved in place by arranging the sliding block, the fixing device, the first spring, the pull rod, the buckle, the connecting shaft, the drag hook and the limiting plate, effectively improves the clamping stability of the clamping tool in the PCB board paster operation process, achieves the effect of limiting and fixing the supporting arm by arranging the fixed rod, the spiral rod, the mounting plate, the supporting arm, the fixing plate and the second spring, can also achieve the clamping of a few PCB boards with irregular shapes by moving the fixed rod, improves the utilization rate and the practicability of the clamping tool, achieves the aim of multi-directional clamping of the PCB boards by arranging the supporting arm and the fixing plate, the flexibility of clamping frock use has greatly been improved, has also guaranteed its stability in the clamping process simultaneously.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an internal schematic view of the slider of the present invention;

fig. 3 is a schematic structural view of the fixing rod of the present invention.

In the figure: the device comprises a base 1, a sliding groove 2, a sliding block 3, a fixing device 31, a first spring 32, a buckle 33, a pull rod 34, a fixing rod 4, a limiting plate 41, a connecting shaft 42, a drag hook 43, a screw rod 5, a nut 51, a mounting plate 6, a supporting arm 7, a fixing plate 71 and a second spring 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a clamping tool for PCB (printed circuit board) chip mounting comprises a base 1, wherein a sliding groove 2 is arranged on the upper surface of the base 1, the sliding groove 2 is arranged to be a rectangular groove, fillets are formed in four sides of the sliding groove 2, so that a sliding block 3 can slide in multiple angles in the sliding groove 2 conveniently to realize multi-directional clamping of a PCB, a sliding block 3 is movably arranged in the sliding groove 2, at least 4 sliding blocks 3 are arranged in the sliding groove 2, a fixing device 31 is arranged in the middle of the inner side of each sliding block 3, the sliding block 3 is internally provided with a press type lock catch similar to a press type lock catch, the fixing device 31 is equivalent to an installation shell of the press type lock catch and used for fixing and connecting internal elements, a first spring 32 is arranged in the fixing device 31, a buckle 33 is arranged close to the upper end in each sliding block 3, a pull rod 34 is movably arranged in the fixing device 31, and a fixing rod 4 is movably arranged on the upper side of each sliding block 3, a limiting plate 41 is arranged on the fixing rod 4 close to the lower end, the limiting plate 41 is combined with the slider 3 to limit and fix the fixing rod 4, so that the clamping tool is prevented from displacing when in use and affecting the surface mounting process, a connecting shaft 42 is arranged in the middle of the lower surface of the fixing rod 4, the lower end of the connecting shaft 42 is fixedly connected with the upper end of the first spring 32, when the fixing rod 4 moves downwards, the connecting shaft 42 extrudes the first spring 32 to enable the first spring 32 to be in a contraction state, drag hooks 43 are symmetrically arranged on the left side and the right side of the lower surface of the fixing rod 4, when the buckle 33 and the drag hooks 43 are in a clamping state, the lower end surface of the limiting plate 41 is tightly attached to the upper surface of the base 1, when the connecting shaft 42 extrudes the first spring 32, the drag hooks 43 are clamped with the buckle 33 to enable the fixing device 31 to move downwards to drive the pull rod 34 to move rightwards, at the moment, the limiting plate 41 is tightly attached to the upper surface of the base 1, the slider 3 and the fixing rod 4 are both fixed on the base 1, the upper end face of the fixing rod 4 is movably provided with a screw rod 5, the upper end face of the screw rod 5 is provided with a screw cap 51, the diameter of the screw cap 51 is larger than the aperture of the screw rod 5 on the mounting plate 6 and is used for fixing the supporting arm 7, a groove notch corresponding to the screw rod 5 is arranged inside the fixing rod 4 so as to facilitate the screw rod 5 to rotate to the inside of the fixing rod 4 and fix the supporting arm 7, the screw rod 5 is arranged to penetrate through the middle part of the mounting plate 6, one end of the mounting plate 6 close to the middle part of the base 1 is fixedly provided with the supporting arm 7, the lower surface of the supporting arm 7 is fixedly provided with a fixing plate 71, the fixing plate 71 is contacted with a PCB to fix the PCB, a second spring 8 is fixedly arranged between the lower surface of the mounting plate 6 and the upper end face of the fixing rod 4, and the second spring 8 is sleeved on the screw rod 5, the lower extreme precession dead lever 4's of hob 5 inside, when needs fix support arm 7, rotatable hob 5 extrudes second spring 8, shortens the distance between support arm 7 and the dead lever 4 to reach and carry out the purpose fixed to support arm 7.

The working principle is as follows: when the PCB is subjected to the paster operation, firstly, the PCB to be processed is placed in the middle of the upper surface of the base 1, so that the draw hook 43 on the limiting plate 41 and the buckle 33 on the sliding block 3 are in a separated state, then the fixing rod 4 is moved to a proper position in the sliding groove 2 through the sliding block 3, the moving quantity and the moving direction of the fixing rod 4 can be determined according to the shape of the PCB, after the position of the fixing rod 4 is determined, the limiting plate 41 can be firstly pressed down, the buckle 33 is indirectly applied with force by pressing the draw hook 43, the buckle 33 moves downwards, meanwhile, the pull rod 34 is driven to move to the right side of the fixing device 31, meanwhile, the connecting shaft 42 compresses the second spring 32, so that the fixing device 31 sinks, the limiting plate 41 can be tightly attached to the upper surface of the base 1, the fixing rod 4 is limited and fixed, then the contact surface between the upper fixing plate 71 of the supporting arm 7 and the PCB is adjusted, and then the spiral rod 5 is rotated into the fixing rod 4, support arm 7 is along with 5 downstream of hob, realizes the fixed of support arm 7, can carry out the paster operation of PCB board, and the paster is accomplished the back, operates above-mentioned process otherwise, can the PCB board take.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a PCB board is clamping frock for paster, includes base (1), its characterized in that: the upper surface of the base (1) is provided with a sliding groove (2), a sliding block (3) is movably mounted in the sliding groove (2), a fixing device (31) is arranged in the middle of the inner side of the sliding block (3), a first spring (32) is arranged inside the fixing device (31), a buckle (33) is arranged near the upper end inside the sliding block (3), a pull rod (34) is movably mounted inside the fixing device (31), a fixing rod (4) is movably mounted on the upper side of the sliding block (3), a limiting plate (41) is arranged on the fixing rod (4) near the lower end, a connecting shaft (42) is arranged in the middle of the lower surface of the fixing rod (4), drag hooks (43) are symmetrically arranged on the left side and the right side of the lower surface of the fixing rod (4), a spiral rod (5) is movably mounted on the upper end surface of the fixing rod (4), and a nut (51) is arranged on the upper end surface of the spiral rod (5), screw rod (5) set up to run through in the middle part of mounting panel (6), one end fixed mounting that mounting panel (6) are close to base (1) middle part has support arm (7), the lower fixed surface of support arm (7) installs fixed plate (71), fixed mounting has second spring (8) between the lower surface of mounting panel (6) and the up end of dead lever (4).

2. The clamping tool for PCB mounting of claim 1, wherein the clamping tool comprises: the number of the sliding blocks (3) is not less than 4 in the sliding groove (2).

3. The clamping tool for PCB mounting of claim 1, wherein the clamping tool comprises: the lower end of the connecting shaft (42) is fixedly connected with the upper end of the first spring (32).

4. The clamping tool for PCB mounting of claim 1, wherein the clamping tool comprises: when buckle (33) and drag hook (43) are in the joint state, the lower terminal surface of limiting plate (41) keeps closely laminating with the upper surface of base (1).

5. The clamping tool for PCB mounting of claim 1, wherein the clamping tool comprises: the diameter of the screw cap (51) is larger than the aperture of the screw rod (5) on the mounting plate (6).