SMT mold positioning device

Abstract

The utility model relates to the technical field of circuit board processing, and provides an SMT (Surface Mount Technology) mold positioning device which comprises a rectangular frame and a positioning mechanism, the rectangular frame is configured to be arranged on a workbench of a printing machine, and the inner side of the rectangular frame is used for placing an SMT mold; the positioning mechanism comprises an adapter and a clamping assembly, the adapter is movably arranged on the rectangular frame, and the clamping assembly is connected with the adapter and configured to be clamped on a frame of the SMT mold. According to the SMT mold positioning device, SMT molds of different specifications can be installed on the inner side of the rectangular frame, positioning of the SMT molds is achieved, and the application scene of a printing machine is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board processing technical field especially relates to a SMT mould positioning device. BACKGROUND

[0002] Surface mounting technology (SMT) is a kind of technology using manual or installation equipment to install component on circuit board or other substrate.Net printing process is based on SMT mould on printing machine, and solder paste or patch glue is printed to the corresponding pad of PCB, so as to prepare for the mounting and welding of component.According to the structure of SMT mould, SMT mould is also called steel mesh, and its function is to help tin paste deposition and transfer accurate amount of tin paste to the accurate position of empty PCB.

[0003] In practical application, it is found that due to the different size specifications of PCB, the specifications and distribution of pads on different PCB are also different, which leads to the need of different specifications of SMT mould when soldering on different specifications of PCB.However, the existing printing machine can only adapt to one specification of SMT mould, and it is difficult to compatible with different specifications of SMT mould, which greatly limits the application scene of printing machine. UTILITARY MODEL CONTENT

[0004] The utility model provides a kind of SMT mould positioning device to at least solve or improve the problem that printing machine in prior art is difficult to compatible with different specifications of SMT mould.

[0005] The utility model provides a kind of SMT mould positioning device, it includes: rectangular frame and positioning mechanism;The rectangular frame is configured to be located on the workbench of printing machine, and the inner side of the rectangular frame is used to place the SMT mould;

[0006] The positioning mechanism includes adapter and clamping assembly, the adapter is movably arranged on the rectangular frame, the clamping assembly is connected with the adapter, and is configured to be clamped to the frame of the SMT mould.

[0007] According to the SMT mould positioning device provided by the utility model, the adapter is movably arranged on the rectangular frame along the length direction of the rectangular frame;

[0008] The adapter is provided with mounting hole, and the rectangular frame is provided with a plurality of positioning holes, and the plurality of positioning holes are sequentially and spacedly arranged along the length direction of the rectangular frame, and the adapter and the rectangular frame are connected by fastener penetrating the mounting hole and the positioning hole.

[0009] The rectangular frame has a first side and a second side extending along the length direction thereof;

[0010] The first end of the adapter is movably arranged on the first side, and the second end of the adapter is movably arranged on the second side; the clamping assembly is arranged on the inner side of the rectangular frame and located between the first side and the second side.

[0011] The clamping assembly comprises a clamping groove and a locking piece according to the SMT mold positioning device provided by the utility model;

[0012] The clamping groove and the adapter are connected and are configured to be clamped on the outer side of the frame; the locking piece is arranged on the clamping groove to lock the frame in the clamping groove.

[0013] The clamping groove comprises a groove bottom plate, a first side plate and a second side plate according to the SMT mold positioning device provided by the utility model;

[0014] The groove bottom plate is connected with the adapter, the first side plate and the second side plate are arranged side by side on the lower side of the groove bottom plate, the first side plate is configured to abut against the outer side of the frame, and the locking piece is arranged on the second side plate and is configured to abut against the inner side of the frame.

[0015] The locking piece is a locking bolt, a threaded hole is arranged on the second side plate, the locking bolt is threadedly connected with the threaded hole, and the end portion of the locking bolt is configured to abut against the inner side of the frame.

[0016] The clamping assembly further comprises a backing plate according to the SMT mold positioning device provided by the utility model, the backing plate is provided with an opening, the groove bottom plate is arranged in the opening, and the backing plate is configured to be clamped between the locking piece and the inner side of the frame.

[0017] The surface of the groove bottom plate is configured to be attached to the top surface of the frame, and the bottom surface of the rectangular frame is configured to be coplanar with the bottom surface of the frame.

[0018] The adapter is connected with a plurality of clamping assemblies according to the SMT mold positioning device provided by the utility model, and the plurality of clamping assemblies are configured to be clamped on the same frame of the SMT mold.

[0019] According to the SMT mold positioning device provided by the utility model, the positioning mechanism is provided with two sets, the two sets of positioning mechanisms are arranged at intervals along the length direction of the rectangular frame; the clamping assembly of one of the two sets of positioning mechanisms is used for clamping the first frame of the SMT mold, and the clamping assembly of the other of the two sets of positioning mechanisms is used for clamping the second frame of the SMT mold; wherein the first frame and the second frame are arranged at intervals along the length direction.

[0020] The SMT mold positioning device provided by the utility model can adjust the installation position of the adapter corresponding to the positioning mechanism on the rectangular frame according to the specification and size of the SMT mold in actual application, and then clamps the frame of the SMT mold through the clamping assembly corresponding to the positioning mechanism, so that different specification SMT molds can be installed on the inner side of the rectangular frame, and the application scenarios of the printing machine are widened. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0022] Figure 1 It is the structural schematic diagram of the SMT mold fixed by the SMT mold positioning device provided by the utility model.

[0023] Figure 2 It is the explosion structural schematic diagram of the utility model provided. Figure 1

[0024] Figure 3 It is the structural schematic diagram of the positioning mechanism provided by the utility model.

[0025] Figure 4 It is the structural schematic diagram of the SMT mold clamped by the clamping assembly provided by the utility model.

[0026] Figure 5 It is the structural schematic diagram of the clamping assembly provided by the utility model.

[0027] REFERENCE SIGNS:

[0028] 1, rectangular frame; 100, positioning hole; 101, first side; 102, second side;

[0029] ​2. Positioning mechanism; 21. Adapter; 210. Mounting hole; 22. Clamping assembly; 221. Slot; 222. Locking element; 223. Pad; 2211. Slot bottom plate; 2212. First side plate; 2213. Second side plate; 2230. Opening;

[0030] 3. SMT mold; 301, first border; 302, second border. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] The following is combined Figures 1-5 The SMT mold positioning device provided by the utility model embodiment will be described in detail through specific embodiments and application scenarios.

[0033] like Figure 1 and Figure 2 As shown, this utility model embodiment provides an SMT mold positioning device, including: a rectangular frame 1 and a positioning mechanism 2; the rectangular frame 1 is configured to be placed on the worktable of a printing machine, and the inner side of the rectangular frame 1 is used to place the SMT mold 3;

[0034] The positioning mechanism 2 includes an adapter 21 and a clamping assembly 22. The adapter 21 is movably mounted on the rectangular frame 1. The clamping assembly 22 is connected to the adapter 21 and is configured to clamp the edge of the SMT mold 3.

[0035] It is understandable that the SMT die 3 includes a border and a printing stencil, with the border extending circumferentially along the printing stencil, for example... Figure 1 The diagram illustrates that the SMT mold 3 has a first border 301 and a second border 302, which are arranged opposite to each other along the length of the rectangular frame 1; the printing template has multiple cutouts, which are arranged opposite to multiple holes on the circuit board.

[0036] The printing press's worktable is used to place circuit boards to be soldered. When the rectangular frame 1 and SMT mold 3 are placed on the worktable, the circuit board is located below the printing template of the SMT mold 3, and the printing head of the printing press is located above the printing template. The printing head moves along the surface of the printing template and can transfer solder paste to the various holes of the circuit board.

[0037] For the positioning mechanism 2, a sliding guide structure and a locking structure can be arranged between the adapter 21 and the rectangular frame 1, the sliding guide structure is used to guide the movement of the adapter 21 relative to the rectangular frame 1, for example, the sliding guide structure can be a sliding groove and a sliding rail that can realize sliding fit. The locking structure is used to realize the locking connection between the adapter 21 and the rectangular frame 1 after the position of the adapter 21 is adjusted.

[0038] In actual application, the installation position of the adapter 21 on the rectangular frame 1 can be adjusted along the length direction of the rectangular frame 1, or the installation position of the adapter 21 on the rectangular frame 1 can be adjusted along the width direction of the rectangular frame 1, which is not specifically limited.

[0039] At the same time, by adjusting the position of the adapter 21 relative to the rectangular frame 1, the clamping assembly 22 can clamp the frame of the SMT mold 3 at a suitable position. The clamping assembly 22 can be a clamping jaw or other clamping structure, which is not specifically limited.

[0040] The SMT mold positioning device provided by the utility model can adjust the installation position of the adapter 21 corresponding to the positioning mechanism 2 on the rectangular frame 1 according to the specification and size of the SMT mold 3 in actual application, clamp the frame of the SMT mold 3 through the clamping assembly 22 corresponding to the positioning mechanism 2, and realize the installation of SMT molds 3 of different specifications on the inner side of the rectangular frame 1, thereby widening the application scenarios of the printing machine.

[0041] In some embodiments, as shown in Figure 1 and Figure 2 The adapter 21 is movably arranged on the rectangular frame 1 along the length direction of the rectangular frame 1; the adapter 21 is provided with a mounting hole 210, the rectangular frame 1 is provided with a plurality of positioning holes 100, the plurality of positioning holes 100 are sequentially and spacedly arranged along the length direction of the rectangular frame 1, and the adapter 21 and the rectangular frame 1 are connected through fasteners arranged in the mounting hole 210 and the positioning hole 100.

[0042] It can be understood that when the SMT mold 3 is placed in the rectangular frame 1, the frames of the four sides of the SMT mold 3 are opposite to the four side edges of the rectangular frame 1 one by one, and the lengths of different SMT molds 3 along the length direction of the rectangular frame 1 are different, so that a plurality of positioning holes 100 are sequentially and spacedly arranged along the length direction of the rectangular frame 1 in this embodiment, so as to position the SMT mold 3 based on the positioning mechanism 2.

[0043] In actual application, the mounting position of the adapter 21 on the rectangular frame 1 can be adjusted along the length direction of the rectangular frame 1 according to the length of the SMT mold 3 along the length direction of the rectangular frame 1, until the mounting hole 210 on the adapter 21 corresponds to one of the plurality of positioning holes 100, then the fastener is threaded through the mounting hole 210 and the positioning hole 100 to fasten the adapter 21 and the rectangular frame 1 into one, and finally the frame of the SMT mold 3 is clamped by the clamping assembly 22. The fastener can be a bolt or a locking pin, which is not limited.

[0044] In some embodiments, as shown in Figure 1 , the rectangular frame 1 has a first side edge 101 and a second side edge 102 extending along the length direction thereof; the first end of the adapter 21 is movably provided on the first side edge 101, and the second end of the adapter 21 is movably provided on the second side edge 102; the clamping assembly 22 is provided on the inner side of the rectangular frame 1 and located between the first side edge 101 and the second side edge 102.

[0045] Specifically, the first side edge 101 and the second side edge 102 of the rectangular frame 1 are each provided with a plurality of positioning holes 100, which are sequentially and spacedly arranged along the length direction of the rectangular frame 1, and the positioning holes on the first side edge 101 and the positioning holes on the second side edge 102 are arranged one by one opposite to each other along the width direction of the rectangular frame 1.

[0046] At the same time, the first end and the second end of the adapter 21 are each provided with a mounting hole 210, by adjusting the mounting position of the adapter 21 on the rectangular frame 1 along the length direction of the rectangular frame 1, it can be ensured that the mounting hole 210 of the second end of the adapter 21 corresponds to one of the positioning holes 100 on the second side edge 102 when the mounting hole 210 of the first end of the adapter 21 corresponds to one of the positioning holes 100 on the first side edge 101.

[0047] Since the two ends of the adapter 21 are fixed respectively in the embodiment, the reliability of the installation of the adapter 21 is ensured. Since the clamping assembly 22 is provided on the inner side of the rectangular frame 1 and located between the first side edge 101 and the second side edge 102, this design not only ensures that the clamping assembly 22 clamps the frame of the SMT mold 3, but also avoids that the clamping assembly 22 occupies the internal space of the printing machine, and ensures that the parts of the entire positioning device shown in the embodiment do not interfere with the related structures in the printing machine during use.

[0048] In some embodiments, as shown in Figure 3 , Figure 4 and Figure 5As shown, the clamping assembly 22 includes a clamping groove 221 and a locking piece 222; the clamping groove 221 is connected with the adapter 21 and is configured to be clamped on the outer side of the frame; the locking piece 222 is arranged on the clamping groove 221 to lock the frame in the clamping groove 221.

[0049] Specifically, the slot of the clamping groove 221 is arranged downward, and the slot width of the clamping groove 221 can be configured to be greater than or equal to the width of the frame of the SMT mold 3.

[0050] When positioning the SMT mold 3, the clamping groove 221 can be vertically lowered to the frame of the SMT mold 3 until the clamping groove 221 is clamped on the outer side of the frame, and then the locking piece 222 is used to realize the locking connection between the frame of the SMT mold 3 and the clamping groove 221.

[0051] When the frame of the SMT mold 3 is locked in the clamping groove 221, the SMT mold 3 will not move relative to the rectangular frame 1.

[0052] In some embodiments, as shown in Figure 5 As shown, the clamping groove 221 includes a groove bottom plate 2211, a first side plate 2212 and a second side plate 2213; the groove bottom plate 2211 is connected with the adapter 21, the first side plate 2212 and the second side plate 2213 are spaced apart from each other, and the first side plate 2212 and the second side plate 2213 are arranged side by side on the lower side of the groove bottom plate 2211, the first side plate 2212 is fitted with the outer side of the frame and is configured to abut against the outer side of the frame, and the locking piece 222 is arranged on the second side plate 2213 and is configured to abut against the inner side of the frame.

[0053] The outer side of the frame is a side of the frame away from the central area of the SMT mold 3, and the inner side of the frame is a side of the frame facing the central area of the SMT mold 3.

[0054] As shown in Figure 4 As shown in Figure 4 The clamping groove 221 is clamped on the outer side of the first frame 301 of the SMT mold 3, and the locking piece 222 abuts against the inner side of the first frame 301.

[0055] In some embodiments, as shown in Figure 5 The locking piece 222 is a locking bolt, a threaded hole is arranged on the second side plate 2213, the locking bolt is threadedly connected with the threaded hole, and the end of the locking bolt is configured to abut against the inner side of the frame. Because the locking bolt is threadedly connected with the threaded hole, when the clamping groove 221 is clamped on the outer side of the frame, the end of the locking bolt can be controlled to approach the inner side of the frame by screwing the locking bolt until the end of the locking bolt abuts against the inner side of the frame to realize the locking of the SMT mold 3.

[0056] Further, the locking bolts can be provided in plurality, and the plurality of locking bolts are provided in one-to-one correspondence with the plurality of threaded holes on the second side plate 2213. This design can utilize the plurality of locking bolts to lock the SMT mold 3 at multiple points, ensuring the balance of the force received by the frame of the SMT mold 3, and preventing the frame from deforming due to unbalanced force.

[0057] In some embodiments, as shown in Figure 5 The clamping assembly 22 further includes a backing plate 223 provided with an opening 2230, and the slot bottom plate 2211 penetrates the opening 2230. The backing plate 223 is configured to be clamped between the locking member 222 and the inner side surface of the frame.

[0058] Since the slot bottom plate 2211 penetrates the opening 2230 of the backing plate 223, the backing plate 223 can move along the slot bottom plate 2211. When locking the SMT mold 3, the locking member 222 drives the backing plate 223 to gradually approach the inner side surface of the frame, until the backing plate 223 is clamped between the locking member 222 and the inner side surface of the frame. Obviously, by providing the backing plate 223, the stress intensity of each stress position of the corresponding stress area of the frame can be reduced, effectively preventing the frame of the SMT mold 3 from deforming due to unbalanced force.

[0059] In some embodiments, as shown in Figure 4 The surface of the slot bottom plate 2211 is configured to be flush with the top surface of the frame, and the bottom surface of the rectangular frame 1 is configured to be coplanar with the bottom surface of the frame. This design can position the SMT mold 3 in the vertical direction, realize that the bottom surface of the rectangular frame 1 and the bottom surface of the SMT mold 3 are distributed on the same plane, and facilitate the use and cleaning of the SMT mold 3 in actual application.

[0060] In some embodiments, as shown in Figure 1 To realize the reliability of fixing the frame of the SMT mold 3, the adapter 21 is connected with a plurality of clamping assemblies 22, and the plurality of clamping assemblies 22 are configured to be clamped on the same frame of the SMT mold 3. The adapter 21 can be provided as a crossbeam, and the clamping assemblies 22 can be provided in two, which are spaced apart along the extension direction of the adapter 21.

[0061] In some embodiments, as shown in Figure 1 To ensure reliable positioning of the SMT mold 3, the positioning mechanism 2 is provided in two sets, and the two sets of positioning mechanisms 2 are spaced apart from each other along the length direction of the rectangular frame 1. The clamping assembly 22 of one of the two sets of positioning mechanisms 2 is used to clamp the first frame 301 of the SMT mold 3, and the clamping assembly 22 of the other of the two sets of positioning mechanisms 2 is used to clamp the second frame 302 of the SMT mold 3. The first frame 301 and the second frame 302 are spaced apart along the length direction of the rectangular frame 1.

[0062] It should be finally pointed out that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features therein can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An SMT mold positioning device, characterized in that, include: Rectangular frame and positioning mechanism; The rectangular frame is configured to be placed on the worktable of the printing machine, and the inner side of the rectangular frame is used to place the SMT mold. The positioning mechanism includes an adapter and a clamping assembly. The adapter is movably disposed on the rectangular frame. The clamping assembly is connected to the adapter and configured to clamp the edge of the SMT mold.

2. The SMT mold positioning device according to claim 1, characterized in that, The adapter is movably disposed on the rectangular frame along the length direction of the rectangular frame; The adapter is provided with mounting holes, and the rectangular frame is provided with multiple positioning holes. The multiple positioning holes are arranged at intervals along the length of the rectangular frame. The adapter and the rectangular frame are connected by fasteners passing through the mounting holes and the positioning holes.

3. The SMT mold positioning device according to claim 1, characterized in that, The rectangular frame has a first side and a second side extending along its length. The first end of the adapter is movably disposed on the first side, and the second end of the adapter is movably disposed on the second side; the clamping assembly is disposed on the inner side of the rectangular frame and is located between the first side and the second side.

4. The SMT mold positioning device according to claim 1, characterized in that, The clamping assembly includes a slot and a locking element; The slot and the adapter are connected and configured to be snapped onto the outside of the frame; the locking member is located in the slot to lock the frame into the slot.

5. The SMT mold positioning device according to claim 4, characterized in that, The slot includes a bottom plate, a first side plate, and a second side plate; The bottom plate of the groove is connected to the adapter. The first side plate and the second side plate are arranged side by side on the lower side of the bottom plate of the groove. The first side plate is configured to abut against the outer side of the frame. The locking member is located on the second side plate and is configured to abut against the inner side of the frame.

6. The SMT mold positioning device according to claim 5, characterized in that, The locking component is a locking bolt. The second side plate has a threaded hole, and the locking bolt is threadedly connected to the threaded hole. The end of the locking bolt is configured to abut against the inner side of the frame.

7. The SMT mold positioning device according to claim 5, characterized in that, The clamping assembly further includes a pad with an opening, through which the slot bottom plate passes, and the pad is configured to be clamped between the locking member and the inner side of the frame.

8. The SMT mold positioning device according to claim 5, characterized in that, The surface of the groove bottom plate is configured to fit against the top surface of the frame, and the bottom surface of the rectangular frame is configured to be coplanar with the bottom surface of the frame.

9. The SMT mold positioning device according to any one of claims 1 to 8, characterized in that, The adapter is connected to a plurality of clamping components, which are configured to clamp onto the same edge of the SMT mold.

10. The SMT mold positioning device according to any one of claims 1 to 8, characterized in that, The positioning mechanism is provided in two sets, and the two sets of positioning mechanisms are spaced apart from each other along the length direction of the rectangular frame; the clamping component of one of the two sets of positioning mechanisms is used to clamp the first edge of the SMT mold, and the clamping component of the other set of positioning mechanisms is used to clamp the second edge of the SMT mold; wherein, the first edge and the second edge are spaced apart along the length direction.

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