Automatic PCBA surface spraying equipment
The combined structure of the support block and the extrusion block provides lateral and vertical support, solving the problem of the PCBA fixture falling when flipping, and improving the stability and precision of the PCBA spraying process.
Patent Information
- Application Number
- CN202422443159.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The existing PCBA fixture is prone to causing the PCBA to fall when flipped, and cannot effectively support it, affecting the spraying accuracy and quality.
The combined structure of the support block and the extrusion block is designed to provide lateral and vertical support. The locking mechanism ensures that the PCBA does not fall during the flipping process. The position of the support block and the extrusion block can be adjusted to accommodate PCBAs of different sizes.
It improves the stability and precision of the PCBA spraying process, ensures the spraying quality, and increases the versatility and flexibility of the equipment.
Smart Images
Figure CN223351961U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PCBA processing, in particular to an automatic PCBA surface spraying device. Background Art
[0002] PCBA refers to the process and final product of installing electronic components on a printed circuit board (PCB) through processes such as soldering. It is widely used in various electronic products such as computers, communications equipment, automotive electronics, and household appliances. It is one of the core components of modern electronic equipment. The quality of PCBA directly affects the performance and reliability of the final product.
[0003] When spraying the surface of a PCBA, a fixture is an essential device. Conventional fixtures often support the four corners of the PCBA to reduce the contact area with the PCBA. However, after securing the PCBA, this method can only support the PCBA with lateral force. This can easily cause the PCBA to fall when flipped. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides an automated PCBA surface spraying device with a simple structure. It can not only support the PCBA laterally, but also support it vertically to prevent the PCBA from falling when it is flipped.
[0005] The utility model discloses an automated PCBA surface spraying device, comprising a support block, wherein a placement notch is provided at one corner of the support block, the placement notch comprises a bottom surface and two side surfaces, both side surfaces are perpendicular to the bottom surface and are vertically arranged, one of the side surfaces is provided with a through hole, an extrusion block is elastically and slidably connected to the through hole, the side of the extrusion block close to the notch is an inclined surface, and a locking mechanism for locking the position of the extrusion block is also included;
[0006] It also includes two support frames, each support frame is rotatably connected to an adjustment shaft, the adjustment shaft is fixed with a bracket, both brackets are fixed with track 1, track 1 is slidably connected to two sliders 1, track 2 is fixed between the two sliders 1, track 2 is arranged perpendicular to track 1, track 2 is slidably connected to slider 2, and the support block is fixed on slider 2.
[0007] As a preferred solution of the present invention, the locking mechanism includes a locking piece that is slidably connected to the extrusion block, and an L-shaped hole that is connected to the through hole is opened on the surface of the support block. The locking piece passes through the L-shaped hole. The L-shaped hole includes horizontal section one and horizontal section two. Horizontal section one coincides with the sliding track of the extrusion block, and horizontal section two is perpendicular to the sliding track of the extrusion block.
[0008] As a preferred solution of the present invention, a cover plate is fixed on the right side of the through hole, and a connecting rod passing through the cover plate is fixed to the extrusion block. The connecting rod is sleeved with a spring, and both ends of the spring are in contact with the cover plate and the extrusion block respectively.
[0009] As a preferred solution of the present invention, a baffle is fixed to one end of the connecting rod extending out of the cover plate. When the locking piece is at the end of horizontal section one away from horizontal section two, the baffle contacts the cover plate, and the inclined surface protrudes from the through hole.
[0010] As a preferred solution of the present invention, the baffle is fixedly connected with a pulling portion.
[0011] As a preferred solution of the present invention, the slider 1 and the slider 2 are both threadedly connected with a locking handle.
[0012] As a preferred solution of the present invention, one of the support frames is fixed with a driving mechanism, the output end of the driving mechanism is a rack, and one of the adjustment shafts is equipped with a gear meshing with the rack.
[0013] As a preferred solution of the present invention, one of the support frames is fixed with two in-position sensors, and the rack is provided with an in-position contact piece.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the design of sliders 1 and 2 allows the user to flexibly adjust the position of each support block according to the specific size of the PCBA, so that the device can adapt to PCBA boards of various sizes, increasing the versatility and flexibility of the device. Through the design of the placement notches of the support blocks and the extrusion blocks, the PCBA board can be provided with lateral support and vertical support, ensuring that the PCBA will not move or fall during the spraying process, thereby improving the spraying accuracy and quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural diagram of the utility model;
[0016] Figure 2 yes Figure 1 A partial enlarged view of part A in the middle;
[0017] Figure 3 It is a structural diagram of the support block, extrusion block, cover plate, limit plate and pulling part;
[0018] Figure 4 It is a schematic diagram of the structure of the extrusion block, locking piece, spring, cover plate, etc.;
[0019] Markings in the accompanying drawings: 1. Support block; 2. Placement notch; 3. Extrusion block; 4. Support frame; 5. Adjustment shaft; 6. Bracket; 7. Track 1; 8. Slider 1; 9. Track 2; 10. Slider 2; 11. Locking piece; 12. L-shaped hole; 13. Cover; 14. Connecting rod; 15. Spring; 16. Baffle; 17. Pulling part; 18. Locking handle; 19. Driving mechanism; 20. Rack; 21. Gear; 22. In-position sensor; 23. In-position contact piece. DETAILED DESCRIPTION
[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.
[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0022] Secondly, the term "embodiment" as used herein refers to specific features, structures, or characteristics that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. Example
[0023] Reference Figure 1-Figure 4 This embodiment provides an automated PCBA surface spraying device, comprising a support block 1, wherein a placement notch 2 is provided at one corner of the support block 1, the placement notch 2 comprising a bottom surface and two side surfaces, both side surfaces being perpendicular to the bottom surface and vertically arranged, one of the side surfaces being provided with a through hole, an extrusion block 3 being elastically and slidably connected to the through hole, the extrusion block 3 having an inclined surface close to the notch, and further comprising a locking mechanism for locking the position of the extrusion block 3;
[0024] It also includes two support frames 4, each support frame 4 is rotatably connected to an adjustment shaft 5, the adjustment shaft 5 is horizontally arranged, the adjustment shaft 5 is fixed to a bracket 6, the two brackets 6 are fixed to a track 7, the track 7 is slidably connected to two sliders 8, a track 2 9 is fixed between the two sliders 8, the track 2 9 is perpendicular to the track 7, the track 2 9 is slidably connected to a slider 2 10, and each track 2 9 slides with at least two sliders 2 10, and the support block 1 is fixed to the slider 2 10;
[0025] In this embodiment, when in use, the locking mechanism is operated so that the extrusion block 3 is completely inside the through-hole. Then, according to the size of the PCBA to be sprayed, the positions of the slider 1 8, the slider 2 10, and the track 2 9 are adjusted so that the notches of the four support blocks 1 correspond to the four corners of the PCBA, respectively. The four corners of the PCBA are placed in the four notches, with the bottom surfaces of the notches supporting the PCBA and the side surfaces of the notches limiting the side surfaces of the PCBA. Then, the locking mechanism is released. Under the action of elastic force, the inclined surface of the extrusion block 3 generates a thrust on the end of the PCBA. Since it is an inclined surface, it generates a vertical component of force on the PCBA, thereby squeezing the PCBA in the vertical direction. After the PCBA is flipped, the extrusion block 3 can still squeeze the PCBA in the vertical direction to prevent it from falling.
[0026] As a preferred solution of the present invention, the locking mechanism includes a locking member 11 slidably connected to the extrusion block 3, more specifically, as Figure 4 As shown, a slide groove is provided on the top surface of the extrusion block 3, and the bottom end of the locking piece 11 slides inside the slide groove. An L-shaped hole 12 connected to the through hole is provided on the surface of the support block 1. The locking piece 11 passes through the L-shaped hole 12. The L-shaped hole 12 includes a horizontal section 1 and a horizontal section 2. The horizontal section 1 coincides with the sliding track of the extrusion block 3, and the horizontal section 2 is perpendicular to the sliding track of the extrusion block 3; a cover plate 13 is fixed to the right side of the through hole, and the cover plate 13 is fixed to the support block 1 by screws. The extrusion block 3 is fixed with a connecting rod 14 passing through the cover plate 13, and the connecting rod 14 is provided with a spring 15. The two ends of the spring 15 are in contact with the cover plate 13 and the extrusion block 3 respectively. When the extrusion block 3 moves, the spring 15 changes adaptively; the connecting rod 14 extends out of the cover plate 13 and is fixed with a baffle 16 at one end. When the locking piece 11 is in the horizontal section 1 away from the end of the horizontal section 2, the baffle 16 contacts the cover plate 13, and the inclined surface protrudes from the through hole; the baffle 16 is fixedly connected to the pulling part 17;
[0027] In this embodiment, if Figure 2 and Figure 3As shown, when the locking member 11 is at the end of the horizontal section 1 away from the horizontal section 2, the baffle 16 contacts the cover plate 13, and the inclined surface protrudes from the through hole. The purpose here is that when the locking member 11 slides on the horizontal section 1, the extrusion block 3 can generate a thrust on the PCBA; the working principle of the locking mechanism is as follows: before installing the PCBA, hold the pulling part 17 and move the connecting rod 14, the baffle 16 and the extrusion block 3 so that the extrusion block 3 completely enters the through hole. During the above process, the locking member 11 moves along the horizontal section 1. When the locking member 11 is level with the horizontal section 2, the locking member 11 is manually slid to move it to the horizontal section 2, and then the pulling part 17 is released. The locking member 11 is stuck at the horizontal section 2, so that the extrusion block 3 cannot move; after the PCBA is placed in the notch, the locking member 11 is manually slid to be on the horizontal section 1. Under the action of the elastic force, the extrusion block 3 moves toward the PCBA.
[0028] As a preferred solution of the present invention, the slider 1 8 and the slider 2 10 are both threadedly connected with a locking handle 18. After adjusting the positions of the slider 1 8 and the slider 2 10, the locking handle 18 is rotated to fix the positions of the slider 1 8 and the slider 2 10.
[0029] As a preferred solution of the present invention, one of the support frames 4 is fixed with a driving mechanism 19. More specifically, the driving mechanism 19 is a cylinder or a linear motor. In order to improve stability, the driving mechanism 19 and components such as the rack 20 can be symmetrically arranged in two groups; the output end of the driving mechanism 19 is a rack 20, and one of the adjustment shafts 5 is equipped with a gear 21 that meshes with the rack 20; one of the support frames 4 is fixed with two in-position sensors 22, and the rack 20 is provided with an in-position contact piece 23;
[0030] In this embodiment, if Figure 1 As shown, the rack 20 is controlled to move by controlling the driving mechanism 19. Since the rack 20 is engaged with the gear 21, the moving rack 20 can drive the gear 21, the adjustment shaft 5, the track 7 and the PCBA to rotate, thereby controlling the spraying surface of the PCBA. The in-position contact piece 23 moves with the rack 20. When it reaches the in-position sensor 22, the driving mechanism 19 stops and the PCBA is facing up, which makes it easier to position the PCBA.
[0031] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.
[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.
Claims
1. An automated PCBA surface spraying equipment, characterized in that, The invention comprises a support block (1), wherein a placement notch (2) is provided at a corner of the support block (1), the placement notch (2) comprises a bottom surface and two side surfaces, the two side surfaces are perpendicular to the bottom surface, and the two side surfaces are vertically arranged, one of the side surfaces is provided with a through hole, an extrusion block (3) is elastically and slidably connected to the through hole, the extrusion block (3) has an inclined surface on one side close to the notch, and further comprises a locking mechanism for locking the position of the extrusion block (3); The invention also includes two support frames (4), each support frame (4) is rotatably connected to an adjustment shaft (5), the adjustment shaft (5) is fixed with a bracket (6), the two brackets (6) are fixed with a track 1 (7), the track 1 (7) is slidably connected to two sliders 1 (8), a track 2 (9) is fixed between the two sliders 1 (8), the track 2 (9) is vertically arranged with the track 1 (7), the track 2 (9) is slidably connected to the slider 2 (10), and the support block (1) is fixed on the slider 2 (10).
2. The automated PCBA surface spraying equipment according to claim 1, characterized in that: The locking mechanism comprises a locking member (11) slidably connected to the extrusion block (3); an L-shaped hole (12) communicating with the through hole is provided on the surface of the support block (1); the locking member (11) passes through the L-shaped hole (12); the L-shaped hole (12) comprises a horizontal section 1 and a horizontal section 2; the horizontal section 1 coincides with the sliding track of the extrusion block (3); and the horizontal section 2 is perpendicular to the sliding track of the extrusion block (3).
3. The automated PCBA surface spraying equipment according to claim 2, characterized in that: A cover plate (13) is fixed to the right side of the through hole, and a connecting rod (14) passing through the cover plate (13) is fixed to the extrusion block (3). The connecting rod (14) is sleeved with a spring (15), and both ends of the spring (15) are in contact with the cover plate (13) and the extrusion block (3) respectively.
4. The automated PCBA surface spraying equipment according to claim 3, characterized in that: A baffle (16) is fixed to one end of the connecting rod (14) extending out of the cover plate (13); when the locking member (11) is at the end of the horizontal section 1 away from the horizontal section 2, the baffle (16) contacts the cover plate (13), and the inclined surface protrudes from the through hole.
5. The automated PCBA surface spraying equipment according to claim 4, characterized in that: The baffle (16) is fixedly connected to a pulling portion (17).
6. The automated PCBA surface spraying equipment according to claim 5, characterized in that: The slider 1 (8) and the slider 2 (10) are both threadedly connected with a locking handle (18).
7. The automated PCBA surface spraying equipment according to claim 6, characterized in that: A driving mechanism (19) is fixed to one of the support frames (4), the output end of the driving mechanism (19) is a rack (20), and one of the adjustment shafts (5) is equipped with a gear (21) meshing with the rack (20).
8. The automated PCBA surface spraying equipment according to claim 7, characterized in that: One of the support frames (4) is fixed with two in-position sensors (22), and the rack (20) is provided with an in-position contact piece (23).