Positioning tool

Abstract

The utility model discloses a positioning tool which comprises a base and a tray arranged on the base, the upper end of the tray is provided with at least one PCB jointed board placing area, and a pressing assembly is arranged beside the PCB jointed board placing area. The pressing assembly comprises a base, a control handle rotating around the base and an elastic piece acting on the control handle, and the control handle is provided with a pressing end. Before the PCB jointed board is placed, the control handle is pressed to enable the pressing end to be far away from the PCB jointed board placing area and enable the elastic piece to deform; after the jointed PCB is placed in, the control handle is loosened, the control handle is reset under the action of the elastic piece, and the pressing end presses the edge of the corresponding position of the jointed PCB. And the pressing modes are diversified, such as staggered up-and-down pressing and horizontal flat pushing and squeezing. The tool is further provided with pressing teeth, positioning pins, square grooves, convex edges and the like, the tray is detachably connected with the base, the PCB jointed board can be effectively fixed, and operation convenience and accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic production tooling, in particular to a positioning tooling for PCB panel soldering in ear thermometer production. Background Art

[0002] In the ear thermometer production process, soldering of the PCB panels in the ear thermometer is a key process, which aims to prevent oxidation of the circuit board, strengthen the connection between the solder joints and the circuit board, reduce the soldering temperature, and provide excellent electrical properties. When the PCB panels are incoming, they are usually composed of multiple unit circuit boards connected by point-to-point disconnections, such as six or eight unit circuit boards. Workers need to perform soldering operations on the PCB panels, however, manual soldering operations are inefficient and it is difficult to ensure the stability of the soldering quality. If soldering is performed by machine, but in the existing production process, there is a lack of specialized and efficient positioning tooling devices to accurately position the PCB panels, which can easily cause the PCB panels to shift during the soldering operation, thereby affecting the quality and efficiency of welding, increasing the defective rate of the product, and increasing production costs.

[0003] With the rapid development of the electronics manufacturing industry, higher requirements are placed on the accuracy, flexibility, versatility and ease of operation of PCB panel positioning tools. Therefore, a new type of positioning tooling device is needed to solve the problems existing in the prior art. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, the utility model provides a positioning tool for positioning PCB panels during machine soldering. The positioning tool positions the PCB panels by pressing up and down or pushing and squeezing the clamping components flatly, thereby reducing labor costs and improving operating efficiency.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A positioning tool comprises a base, a tray arranged on the base, the upper end of the tray has at least one PCB panel placement area, and a clamping assembly for preventing the PCB panel from being separated from the PCB panel placement area is arranged next to the PCB panel placement area. The clamping assembly comprises a base and a control handle rotating around the base, an elastic member for the control handle is arranged between the control handle and the base, and the control handle has a clamping end that can act on the PCB panel.

[0007] Before the PCB panel is placed in the PCB panel placement area, press the control handle to make the clamping end move away from the PCB panel placement area, and at the same time cause the elastic member to deform; after the PCB panel is placed in the PCB panel placement area, release the control handle, and the control handle is reset under the action of the elastic member and causes the clamping end to press the edge of the corresponding position of the PCB panel.

[0008] Preferably, there are two ways of positioning and pressing by the tooling: one is that in the pressing assembly, the elastic member is deformed by pressing down and releasing the handle body and then acts on the pressing end of the pressing plate, so that the pressing end intersects with the edge of the corresponding position of the PCB panel, and the PCB panel is pressed by the way of pressing up and down; the other is that the elastic member is deformed by pressing down and releasing the handle body and then acts on the pressing end of the pressing plate. In the horizontal direction, the pressing end presses the PCB panel tightly by the way of horizontal pushing and squeezing to meet the requirements of different working conditions.

[0009] Preferably, on the side of the pressing end close to the placement area of the PCB panel, there are pressing teeth for pressing the PCB panel, so that there will be no pressure loss when pressing the PCB panel, and when releasing, the pressing teeth can reduce the contact area with the PCB panel, making it more convenient to disengage from the PCB panel, and providing good pressing stability and convenience for picking and placing.

[0010] Preferably, the control handle includes a handle body and a pressing plate detachably connected to the handle body. The pressing end is at the front end position of the pressing plate. There are cross slots for adjusting the offset amount on the pressing plate, and there are threaded holes on the handle body. By inserting a bolt into the cross slot and screwing it into the threaded hole, the pressing plate and the control handle are connected as a whole, so as to achieve the purpose of fine-tuning the position of the pressing plate, and thus be able to adapt to PCB panels of different sizes.

[0011] Preferably, the tray is a left-right mirror-symmetrical and integrally formed structure, so that two symmetrical placement areas for PCB panels are formed on the tray, improving the working efficiency of the tooling and the stability and durability of the structure.

[0012] Preferably, there are at least two positioning pins on the tray corresponding to the positions of the reserved through holes on the PCB panel; the purpose of positioning the PCB panel is achieved by the insertion and cooperation of the positioning pins and the through holes of the PCB panel, ensuring the positioning accuracy of the PCB panel.

[0013] Preferably, there is a square groove for avoiding the components on the PCB panel in the placement area of the PCB panel, and the depth of the square groove is greater than the height of the components on the PCB panel, avoiding damage to the components during the positioning process.

[0014] Preferably, the tray and the base are detachably connected by bolts, which is convenient for maintenance and replacement. When it is necessary to position PCB panels of different sizes, just replace the tray of the corresponding size, enhancing the versatility of the tooling.

[0015] Preferably, there is a convex edge on the side of the placement area of the PCB panel far from the pressing assembly. After the PCB panel is placed in the placement area of the PCB panel and under the action of the horizontal pushing and squeezing of the pressing end, the edge of the PCB panel abuts against the convex edge, further improving the positioning stability of the PCB panel.

[0016] Through the above series of optimized designs, the technical solution of the present utility model can effectively solve the problems existing in the existing PCB panel positioning tooling, improve the accuracy, stability and versatility of positioning, simplify the operation process and improve production efficiency.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] By setting a rotatable control handle and an elastic member, the present utility model realizes the quick pressing and loosening of the PCB panel, with simple operation and improved production efficiency. During the pressing process, press the control handle to move the pressing end away from the PCB panel placement area, and after placing the PCB panel, release the control handle to complete the pressing, saving operation time.

[0019] The pressing end forms an intersection with the edge of the corresponding position of the PCB panel, and is pressed by the way of upper and lower pressing, or abuts against the corresponding position of the PCB panel by the way of horizontal pushing and squeezing, which can adapt to PCB panels with different soldering positions, meet different working conditions requirements, and ensure the stability and reliability of positioning.

[0020] The tray and the base are detachably connected by bolts. When it is necessary to position PCB panels with different sizes, only need to replace the corresponding tray, which greatly reduces the production cost and improves the versatility of the tooling.

[0021] The setting of the inner square groove in the PCB panel placement area avoids damage to the components on the PCB panel. Brief Description of the Drawings

[0022] Figure 1 It is a schematic structural view of the present utility model for pressing the PCB panel up and down;

[0023] Figure 2 It is a schematic structural view of the present utility model for pressing the PCB panel by horizontal pushing and squeezing;

[0024] Figure 3 It is a schematic view of pre-soldering the PCB panel after positioning by the present utility model;

[0025] Figure 4 It is a schematic structural view of the tray of the present utility model;

[0026] Figure 5 It is an exploded view of the positioning component;

[0027] Figure 6 It is a sectional view of the positioning component;

[0028] Figure 7 It is a schematic view of the positioning component.

[0029] The reference numerals of each figure are: 1 - base, 2 - tray, 3 - PCB panel placement area, 4 - pedestal, 5 - handle body, 6 - elastic member, 7 - pressing plate, 7a - pressing end, 7b - pressing teeth, 8 - positioning pin, 9 - convex edge, 10 - square groove, 11 - pressing assembly, 12 - control handle, 13 - cross-slot hole, 14 - via hole, 21 - PCB panel, 22 - soldering head. Detailed implementation manners

[0030] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0031] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0032] The specific implementation manners of the present invention are as follows:

[0033] Embodiment 1: Refer to Figure 2-7 ; specifically as Figure 2 shown, this embodiment provides a positioning tool for positioning a PCB panel during machine soldering. The positioning tool includes a base 1, and the base 1 is made of a strong metal material, having good stability and durability. The tray 2 is detachably connected to the base 1 by bolts, which is convenient for replacement or repair according to different requirements. In this embodiment, the tray 2 has a structure that is left-right mirror-symmetrical and integrally formed, so that two symmetrical PCB panel placement areas 3 are formed on the tray 2, thereby enabling the simultaneous positioning of two PCB panels 21, greatly improving the working efficiency. Each PCB panel placement area 3 is provided with a square groove 10 for avoiding the components on the PCB panel 21. The depth of these square grooves 10 is greater than the height of the components on the PCB panel 21, thereby ensuring that the components will not be damaged during the positioning process and ensuring that the PCB panel 21 can be placed flat in the PCB panel placement area 3 without being unstable due to the presence of the components.

[0034] In order to more accurately position the PCB panel 21, at least two positioning pins 8 are also provided on the tray 2. The positions of these positioning pins 8 correspond to the positions of the via holes 14 reserved on the PCB panel 21. When the PCB panel 21 is placed in the PCB panel placement area 3, the positioning pins 8 are inserted into and cooperate with the via holes 14, realizing the accurate positioning of the PCB panel 21.

[0035] As Figure 5 ,6 As shown in Fig. 7, a pressing component 11 for preventing the PCB panel 21 from detaching is provided beside each PCB panel placement area 3. The pressing component 11 includes a base 4 and a control handle 12 that rotates around the base 4. The base 4 of the pressing component 11 is firmly fixed on the base. An elastic member 6, such as a compression spring, is installed between the control handle 12 and the base 4, which can provide stable elastic force. The control handle 12 includes a handle body 5 and a pressing plate 7 detachably connected to the handle body 5. The pressing end 7a is located at the front end of the pressing plate 7, and the pressing end 7a is an existing edge part. A groove is provided at the front end of the handle body 5. One end of the elastic member 6 is located in the groove, and the other end of the elastic member 6 abuts against the base 4.

[0036] Furthermore, press teeth 7b are further formed on the pressing end 7a. Such press teeth do not replace the pressing end 7a, but are used to enhance the friction force during flat pushing and squeezing to avoid slipping. A cross slot hole 13 for adjusting the offset is provided on the pressing plate 7, and a threaded hole is provided on the handle body 5. By inserting a bolt into the cross slot hole 13 and screwing it into the threaded hole, the pressing plate 7 and the control handle 12 are connected as a whole. This detachable and adjustable design enables the tooling to adapt to PCB panels 21 of different specifications and sizes.

[0037] Before placing the PCB panel 21, the operator presses the handle body 5 of the control handle 12 to move the pressing end 7a of the pressing plate 7 away from the PCB panel placement area 3. At this time, the elastic member 6 is compressed. Then, the PCB panel 21 is placed in the PCB panel placement area 3 so that its via hole 14 is accurately inserted into the positioning pin 8. Subsequently, the handle body 5 is released. Under the elastic force of the elastic member 6, the control handle 12 resets, and the pressing end 7a abuts against the corresponding position of the PCB panel 21 by means of flat pushing and squeezing. Due to the press teeth on the pressing end 7a, the PCB panel 21 is firmly pressed. At the same time, when it is necessary to take out the PCB panel 21, it can also be easily released from the press teeth and taken out.

[0038] As Figure 4 shown, a convex edge 9 is provided between the two PCB panel placement areas 3. When the PCB panel 21 is under the flat pushing and squeezing action of the pressing end 7a, its edge can abut against the convex edge 9, further enhancing the stability of the PCB panel 21 in the horizontal direction.

[0039] As Figure 3 shown, after the positioning tooling positions the PCB panel 21, the base 1 is placed on the XY rails on the machine table surface. The XY rails have corresponding drives in their respective directions, which is prior art and will not be elaborated here. In this way, the base 1 can move horizontally along the XY direction under program control, and the cooperating soldering head 22 moves vertically above for soldering operations at corresponding positions.

[0040] Embodiment 2: As Figure 1 shown, the difference between this embodiment and Embodiment 1 is that in Embodiment 1, the pressing is achieved by the flat pushing and squeezing of the pressing end 7a and the convex edge 9, while in this embodiment, the PCB panel 21 is pressed by the up-and-down movement of the pressing end 7a. For example, when the shape or structure of the PCB panel 21 is not suitable for flat pushing and squeezing, a more stable and uniform pressing force can be provided to ensure the stability of the PCB panel 21 during the processing.

[0041] Specifically, before placing the PCB panel 21, press the handle body 5 of the control handle 12 to move the pressing end 7a away from the PCB panel placement area 3, and the elastic member 6 is compressed and deformed accordingly. Place the PCB panel 21 into the PCB panel placement area 3, and make the positioning pin 8 accurately inserted into the via hole 14 on the PCB panel 21. After releasing the handle body 5, under the action of the elastic member 6, the control handle 12 quickly resets. At this time, the pressing end 7a intersects with the edge of the corresponding position of the PCB panel 21, and the PCB panel 21 is firmly pressed by the way of up-and-down pressing.

[0042] In summary, the positioning tooling of the present utility model can meet the positioning requirements of PCB panels 21 of various specifications through different pressing methods and the detachable connection between the tray 2 and the base 1, and has wide applicability and good practical value.

[0043] The above schematically describes the present utility model and its embodiments. This description is not restrictive, and what is shown in the drawings is only one of the embodiments of the present utility model. The actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural forms and embodiments to this technical solution without creative efforts without departing from the creative purpose of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A positioning tool, characterized in that: The invention comprises a base (1), a tray (2) arranged on the base (1), the upper end of the tray (2) having at least one PCB panel placement area (3), a clamping assembly (11) for preventing the PCB panel (21) from being separated from the PCB panel placement area (3) being arranged next to the PCB panel placement area (3), the clamping assembly (11) comprising a base (4) and a control handle (12) rotating around the base (4), the base (4) being fixedly arranged on the base (1), and an elastic member (12) acting on the control handle (12) being arranged between the control handle (12) and the base (4). 6), the control handle (12) has a clamping end (7a) that acts on the PCB panel (21); the PCB panel (21) is placed in front of the PCB panel placement area (3), and the control handle (12) is pressed to move the clamping end (7a) away from the PCB panel placement area (3), while causing the elastic member (6) to deform; after the PCB panel (21) is placed in the PCB panel placement area (3), the control handle (12) is released, and the control handle (12) is reset under the action of the elastic member (6) and causes the clamping end (7a) to press the edge of the corresponding position of the PCB panel (21).

2. The positioning tool according to claim 1, characterized in that: The clamping end (7a) clamps the edge of the corresponding position of the PCB panel (21) in such a way that the clamping end (7a) and the edge of the corresponding position of the PCB panel (21) are staggered and clamped by pressing up and down.

3. The positioning tool according to claim 1, characterized in that: The clamping end (7a) clamps the edge of the corresponding position of the PCB panel (21) in the sense that, in the horizontal direction, the clamping end (7a) abuts against the corresponding position of the PCB panel (21) by means of flat pushing and squeezing.

4. The positioning tool according to claim 3, characterized in that: The pressing end (7a) is provided with pressing teeth (7b) for pressing the PCB panels (21) on one side close to the PCB panel placement area (3), so that the PCB panels can be pressed and the PCB panels can be easily removed when the pressing teeth (7b) are released.

5. The positioning tool according to claim 1, characterized in that: The control handle (12) comprises a handle body (5) and a pressure plate (7) detachably connected to the handle body (5), wherein the clamping end (7a) is located at the front end of the pressure plate (7), the pressure plate (7) is provided with a cross slot hole (13) for adjusting the offset, and the handle body (5) is provided with a threaded hole, and the pressure plate (7) and the control handle (12) are connected as a whole by inserting a bolt into the cross slot hole (13) and screwing it into the threaded hole.

6. The positioning tool according to claim 1, characterized in that: The tray (2) is a left-right mirror-symmetrical and integrally formed structure, thereby forming two symmetrical PCB panel placement areas (3) on the tray (2).

7. The positioning tool according to claim 1, characterized in that: The tray (2) is provided with at least two positioning pins (8) for corresponding to the positions of through holes reserved on the PCB panels; the positioning pins (8) are plugged into and matched with the through holes (14) of the PCB panels (21) to achieve the purpose of positioning the PCB panels (21).

8. The positioning tool according to claim 1, characterized in that: The PCB panel placement area (3) is provided with a square groove (10) for avoiding components on the PCB panel, and the depth of the square groove (10) is greater than the height of the components on the PCB panel.

9. The positioning tool according to claim 1, characterized in that: The tray (2) and the base (1) are detachably connected by bolts.

10. The positioning tool according to claim 3, characterized in that: A convex edge (9) is provided on the side of the PCB panel placement area (3) away from the clamping assembly (11). After the PCB panel (21) is placed in the PCB panel placement area (3) and under the horizontal pushing and squeezing action of the clamping end (7a), the edge of the PCB panel (21) abuts against the convex edge (9).

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