Steel mesh positioning device

Abstract

The utility model discloses a steel mesh positioning device, which belongs to the technical field of printed circuit board (PCB) printing equipment and comprises a frame body, a first positioning component, a second positioning component and a third positioning component. The first positioning assembly and / or the second positioning assembly are / is arranged on the frame body in a sliding mode in the first linear direction, a positioning space is formed between the first positioning assembly and the second positioning assembly, and the first positioning assembly is provided with a first elastic piece located in the positioning space and / or the second positioning assembly is provided with a second elastic piece located in the positioning space. The third positioning assembly is slidably arranged on the frame body in the second linear direction and provided with a pushing part located between the first positioning assembly and the second positioning assembly, and the first linear direction is perpendicular to the second linear direction. According to the utility model, the steel mesh body can be positioned in the length direction and the width direction, and the printing quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board printing equipment, in particular to a steel mesh positioning device. Background Art

[0002] SMT (surface mount technology) is currently the most popular technology in the electronics assembly industry and is widely used in the production of printed circuit boards. As one of the three key steps in the SMT process, solder paste printing plays a crucial role. According to industry statistics, approximately 60-70% of solder defects in the SMT process are caused by poor solder paste printing. Therefore, ensuring solder paste printing quality is crucial for ensuring the yield rate of SMT placement. Currently, the main factors affecting solder paste printing quality include solder paste properties, squeegee construction, printing process, and stencil quality. While maintaining consistent stencil quality, achieving high yield and low-defect printing quality depends on accurate stencil positioning and precise alignment with the substrate (PCB). Currently, semi-automatic solder paste printing equipment often relies on manual stencil replacement. The stencil is manually positioned to ensure precise alignment with the substrate (PCB) before being fixed. This stencil positioning is prone to human error, ultimately resulting in poor printing quality. Summary of the Invention

[0003] The purpose of the embodiment of the present utility model is to provide a steel mesh positioning device that can realize the positioning of the steel mesh body in the length direction and the width direction, thereby improving the quality of printing.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A steel mesh positioning device, comprising:

[0006] frame;

[0007] A first positioning assembly and a second positioning assembly; the first positioning assembly and / or the second positioning assembly are slidably arranged on the frame along a first straight line direction, a positioning space is formed between the first positioning assembly and the second positioning assembly, the first positioning assembly is provided with a first elastic member located in the positioning space and / or the second positioning assembly is provided with a second elastic member located in the positioning space;

[0008] as well as

[0009] The third positioning component is slidably disposed on the frame along a second linear direction. The third positioning component has a pushing portion located between the first positioning component and the second positioning component.

[0010] Optionally, the first positioning assembly is equipped with a first locking member and / or the second positioning assembly is equipped with a second locking member, the first locking member has a movably mounted first locking portion, and the second locking member has a movably mounted second locking portion;

[0011] The first positioning assembly has a first supporting portion and a first positioning portion located above the first supporting portion, the second positioning assembly has a second supporting portion and a second positioning portion located above the second supporting portion, the first positioning portion and the second positioning portion are arranged opposite to each other, the first elastic member is installed on the first positioning portion and / or the second elastic member is installed on the second positioning portion, a first locking gap is formed between the first locking portion and the first supporting portion and / or a second locking gap is formed between the second locking portion and the second supporting portion.

[0012] Optionally, a first limiting portion is provided on the first positioning component, and a second limiting portion is provided on the second positioning component. The first limiting portion and the first supporting portion are arranged in sequence along the sliding path of the third positioning component, and the second limiting portion and the second supporting portion are arranged in sequence along the sliding path of the third positioning component.

[0013] Optionally, a first guide wheel is installed on the first positioning assembly, a second guide wheel is installed on the second positioning assembly, the first support portion is located between the first guide wheel and the first limiting portion, and the second support portion is located between the second guide wheel and the second limiting portion.

[0014] Optionally, a first guide rail and a second guide rail are installed on the frame, a first slider is slidably provided on the first guide rail, and a second slider is slidably provided on the second guide rail;

[0015] The first positioning assembly includes a first adapter seat mounted on the first slider, a first positioning frame mounted on the first adapter seat, and a first positioning cylinder mounted on the first adapter seat; the first elastic member is mounted on the first positioning frame;

[0016] The second positioning assembly includes a second adapter mounted on the second slider, a second positioning frame mounted on the second adapter, and a second positioning cylinder mounted on the second adapter; the second elastic member is mounted on the second positioning frame;

[0017] The first guide rail and the second guide rail are parallel, and the frame is provided with a plurality of first positioning holes arranged at intervals along the extension direction of the first guide rail and a plurality of second positioning holes arranged at intervals along the extension direction of the second guide rail. The first positioning holes are located on the moving path of the output end of the first positioning cylinder, and the second positioning holes are located on the moving path of the output end of the second positioning cylinder.

[0018] Optionally, the first positioning assembly further comprises a first positioning plug-in / plug-out fork mounted on the output end of the first positioning cylinder and a first positioning plug-in / plug-out rod mounted on the first positioning plug-in / plug-out fork; the second positioning assembly further comprises a second positioning plug-in / plug-out fork mounted on the output end of the second positioning cylinder and a second positioning plug-in / plug-out rod mounted on the second positioning plug-in / plug-out fork;

[0019] The first positioning hole is located on a moving path of the first positioning and plugging rod, and the second positioning hole is located on a moving path of the second positioning and plugging rod.

[0020] Optionally, the frame includes a first base and / or a second base;

[0021] The first base is provided with a plurality of first scale bars spaced apart along the extending direction of the first guide rail;

[0022] and / or

[0023] The second base is provided with a plurality of second scale bars spaced apart along the extending direction of the second guide rail.

[0024] Optionally, the frame further includes a guide beam mounted on the first base and / or the second base, and the guide beam is provided with a plurality of guide blocks arranged at intervals along the extension direction of the first guide rail.

[0025] Optionally, a third guide rail is provided on the frame, and a third slider is slidably provided on the third guide rail;

[0026] The third positioning assembly includes a bracket installed on the third slider, a third cylinder installed on the bracket, and a push plate connected to the output end of the third cylinder; the pushing part is located on the push plate.

[0027] Optionally, the first positioning component and / or the second positioning component is provided with a sensor for detecting the steel mesh.

[0028] The beneficial effects of the present invention are as follows: the steel mesh positioning device can first realize the positioning of the steel mesh body in the width direction by jointly clamping the steel mesh body through the first positioning component and the second positioning component; the first elastic member on the first positioning component and / or the second elastic member on the second positioning component can prevent the steel mesh body from being damaged during the clamping process; after completing the positioning of the steel mesh body in the width direction, the third positioning component is used to push the steel mesh body to move a preset distance in the length direction, thereby realizing the positioning of the steel mesh body in the length direction, so that the steel mesh body can be accurately aligned with the substrate (PCB board), thereby improving the printing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0030] Figure 1 It is a structural diagram of the steel mesh positioning device;

[0031] Figure 2 This is a working diagram of the steel mesh positioning device;

[0032] Figure 3 It is a structural diagram of the frame, guide beam, first base and second base;

[0033] Figure 4 is a structural diagram of a first positioning component;

[0034] Figure 5 A schematic diagram of the coordination of the first mounting plate, the first guide rail, the first slider, the first adapter, and the first positioning cylinder;

[0035] Figure 6 A schematic diagram of the coordination of the first base, the first guide rail, the first slider, the first adapter, and the first positioning cylinder;

[0036] Figure 7 is a structural schematic diagram of a second positioning component;

[0037] Figure 8 A schematic diagram of the coordination of the second mounting plate, the second guide rail, the second slider, the second adapter, and the second positioning cylinder;

[0038] Figure 9 Schematic diagram of the coordination of the second base, the second guide rail, the second slider, the second adapter, and the second positioning cylinder;

[0039] Figure 10 This is a schematic structural diagram of the third positioning component.

[0040] Description of the accompanying drawings:

[0041] 11. Frame; 12. First positioning assembly; 13. Second positioning assembly; 14. Third positioning assembly; 15. First elastic member; 16. First locking member; 17. Second locking member; 18. First guide wheel; 19. Second guide wheel; 20. First guide rail; 21. Second guide rail; 22. Third guide rail; 23. Sensor; 24. Steel mesh body;

[0042] 111. First support beam; 112. Connecting beam; 113. Second support beam; 114. First base; 115. Second base; 116. Guide beam; 117. Guide block; 118. First mounting plate; 119. Second mounting plate;

[0043] 1141, first scale bar; 1142, first positioning hole; 1151, second scale bar; 1152, second positioning hole;

[0044] 121. First adapter; 122. First positioning bracket; 123. First positioning cylinder; 124. First support portion; 125. First positioning portion; 126. First limiting portion; 127. First positioning insertion fork; 128. First positioning insertion rod; 129. First wedge chamfer;

[0045] 131. Second adapter; 132. Second positioning bracket; 133. Second positioning cylinder; 134. Second supporting portion; 135. Second positioning portion; 136. Second limiting portion; 137. Second positioning insertion fork; 138. Second positioning insertion rod; 139. Second wedge chamfer;

[0046] 141. Bracket; 142. Third cylinder; 143. Push plate; 144. Pushing part. DETAILED DESCRIPTION

[0047] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0048] In the description of this utility model, unless otherwise expressly specified or limited, the terms "connected," "fixed," "connected," "communicated," "abutted," "clamped," etc. should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0049] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0050] In the description herein, it should be understood that terms such as "upper," "lower," "left," and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0051] Throughout this specification, references to terms such as "one embodiment" and "example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example.

[0052] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0053] Unless specifically stated or defined otherwise, the term “and / or” used in the present invention includes any and all combinations of one or more of the associated listed items.

[0054] For the convenience of description, unless otherwise specified, the following terms "upper and lower" and "lower" are Figure 1 The up and down directions are consistent.

[0055] The stencil positioning device described in this application is used to position the stencil body in both the length and width directions. The stencil body (also known as the SMT stencil) is a special SMT mold. Its primary function is to facilitate solder paste deposition, aiming to transfer the correct amount of solder paste to the exact location on the blank PCB board.

[0056] like Figures 1 to 10 As shown, this embodiment provides a steel mesh positioning device, including a frame 11 , a first positioning component 12 , a second positioning component 13 , and a third positioning component 14 .

[0057] The first positioning assembly 12 and / or the second positioning assembly 13 are slidably mounted on the frame 11 along the first straight line direction. The first positioning assembly 12 and the second positioning assembly 13 can slide relative to each other so that the distance between the first positioning assembly 12 and the second positioning assembly 13 can be adjusted. For example, both the first positioning assembly 12 and the second positioning assembly 13 can be slidably mounted on the frame 11 along the first straight line direction, or one of the first positioning assembly 12 and the second positioning assembly 13 can be slidably mounted on the frame 11 along the first straight line direction. In this embodiment, both the first positioning assembly 12 and the second positioning assembly 13 can be slidably mounted on the frame 11 along the first straight line direction. A positioning space is formed between the first positioning assembly 12 and the second positioning assembly 13. When the first positioning assembly 12 and / or the second positioning assembly 13 slide along the first straight line direction, the size of the positioning space can be changed, so that the first positioning assembly 12 and the second positioning assembly 13 can clamp the steel mesh body 24 along the width direction of the steel mesh body 24 to achieve positioning of the steel mesh body 24 in the width direction. The first positioning assembly 12 is provided with a first elastic member 15 positioned within the positioning space, and / or the second positioning assembly 13 is provided with a second elastic member positioned within the positioning space. In this embodiment, the first positioning assembly 12 is provided with a first elastic member 15, which may be a spring, elastic sheet metal, or the like. Multiple first elastic members 15 are provided and spaced apart along the length of the steel mesh body 24. When the first and second positioning assemblies 12, 13 clamp the steel mesh body 24 for positioning, the first elastic members 15 prevent excessive clamping force from damaging the steel mesh body 24. The third positioning assembly 14 is slidably mounted on the frame 11 along a second linear direction. The third positioning assembly 14 has a pushing portion 144 positioned between the first and second positioning assemblies 12, 13. The first and second linear directions are perpendicular horizontal directions. The first and second positioning assemblies 12, 13 clamp the steel mesh body 24 along its width, and the pushing portion 144 pushes the steel mesh body 24 along its length.

[0058] When positioning the steel mesh body 24 in the length and width directions, the steel mesh positioning device first places the steel mesh body 24 on the frame 11 so that the steel mesh body 24 is located between the first positioning assembly 12 and the second positioning assembly 13. One end of the steel mesh body 24 in the width direction may abut against the positioning portion on the first positioning assembly 12 and / or the second positioning assembly 13, or may abut against the pushing portion 144. The first positioning assembly 12 and / or the second positioning assembly 13 are then driven to move an appropriate distance so that the first positioning assembly 12 and the second positioning assembly 13 clamp the steel mesh body 24 to achieve positioning of the steel mesh body 24 in the width direction, thereby completing precise alignment of the steel mesh body 24 in the width direction with the substrate below. The first positioning component 12 and the second positioning component 13 have a smaller clamping force on the steel mesh body 24. The pushing part 144 of the third positioning component 14 moves along the second straight line direction and pushes one side of the length direction of the steel mesh body 24, so that the steel mesh body 24 moves along its own length direction. By controlling the distance that the steel mesh body 24 moves along its own length direction, the third positioning component 14 can position the steel mesh body 24 in the length direction, thereby completing the precise alignment of the steel mesh body 24 with the substrate below in the length direction.

[0059] Key References Figure 4 and Figure 7 In one embodiment, the first positioning assembly 12 is equipped with a first locking member 16 and / or the second positioning assembly 13 is equipped with a second locking member 17. The first locking member 16 has a movably mounted first locking portion, and the second locking member 17 has a movably mounted second locking portion. The first locking portion and the second locking portion can rotate or slide up and down. In this embodiment, the first locking member 16 and the second locking member 17 are both cylinders. The output ends of the cylinders extend and retract, and when extended downward, the output ends of the cylinders can abut against the upper surface of the steel mesh body 24.

[0060] The first positioning assembly 12 includes a first support portion 124 and a first positioning portion 125 located above the first support portion 124. The second positioning assembly 13 includes a second support portion 134 and a second positioning portion 135 located above the second support portion 134. The first positioning portion 125 and the second positioning portion 135 are arranged opposite to each other. The first positioning portion 125 is a vertical plane on the first positioning frame 122, and the second positioning portion 135 is a vertical plane on the second positioning frame 132. The first support portion 124 is a horizontal plane on the first positioning frame 122, and the second support portion 134 is a horizontal plane on the second positioning frame 132. Before placing the steel mesh body 24, the first support portion 124 and the second support portion 134 are first adjusted to an appropriate distance. Then, the two ends of the steel mesh body 24 in the width direction are placed on the first support portion 124 and the second support portion 134 respectively. Then, the first positioning portion 125 and the second positioning portion 135 are driven close to each other to clamp the steel mesh body 24. The first elastic member 15 is mounted on the first positioning portion 125 and / or the second elastic member is mounted on the second positioning portion 135. A first locking gap is formed between the first locking portion and the first support portion 124, and a second locking gap is formed between the second locking portion and the second support portion 134. After the stencil body 24 is positioned in the length and width directions, the first locking member 16 and the second locking member 17 are used to lock the stencil body 24 to prevent it from moving during printing.

[0061] Furthermore, the first positioning assembly 12 is provided with a first limiting portion 126, and the second positioning assembly 13 is provided with a second limiting portion 136. The first limiting portion 126 and the first supporting portion 124 are sequentially arranged along the sliding path of the third positioning assembly 14, and the second limiting portion 136 and the second supporting portion 134 are sequentially arranged along the sliding path of the third positioning assembly 14. Specifically, the first positioning frame 122 is provided with a first limiting bar, and the second positioning frame 132 is provided with a second limiting bar. The first limiting portion 126 is located on the first limiting bar, and the second limiting portion 136 is located on the second limiting bar. When the steel mesh body 24 is placed on the first support part 124 and the second support part 134, the steel mesh body 24 is pushed along the first support part 124 and the second support part 134, so that one end of the steel mesh body 24 along the length direction moves along the direction close to the pushing part 144 and abuts against the first limiting part 126 and the second limiting part 136 to achieve positioning, and then the first positioning part 125 and the second positioning part 135 are driven to approach each other to clamp the steel mesh body 24, and finally the pushing part 144 pushes the steel mesh body 24 away from the first support part 124 and the second support part 134 to achieve the upper and lower alignment of the steel mesh body 24 and the substrate.

[0062] Optionally, a first guide wheel 18 is mounted on the first positioning assembly 12, and a second guide wheel 19 is mounted on the second positioning assembly 13. The first support portion 124 is located between the first guide wheel 18 and the first limiting portion 126, and the second support portion 134 is located between the second guide wheel 19 and the second limiting portion 136. The first guide wheel 18, the first support portion 124, the first limiting portion 126, and the pushing portion 144 are arranged sequentially along the second straight line direction, and the second guide wheel 19, the second support portion 134, the second limiting portion 136, and the pushing portion 144 are arranged sequentially along the second straight line direction. When the steel mesh body 24 is placed on the first positioning assembly 12 and the second positioning assembly 13, both sides of the steel mesh body 24 can be placed on the first support portion 124 and the second support portion 134, respectively, along the first guide wheel 18 and the second guide wheel 19, to facilitate loading of the steel mesh body 24.

[0063] Key References Figures 3 to 9 In one embodiment, a first guide rail 20 and a second guide rail 21 are installed on the frame 11 , a first slider is slidably provided on the first guide rail 20 , and a second slider is slidably provided on the second guide rail 21 .

[0064] The first positioning assembly 12 includes a first adapter 121 mounted on the first slider, a first positioning frame 122 mounted on the first adapter 121 , and a first positioning cylinder 123 mounted on the first adapter 121 . The first elastic member 15 is mounted on the first positioning frame 122 .

[0065] The second positioning assembly 13 includes a second adapter 131 mounted on the second slider, a second positioning frame 132 mounted on the second adapter 131 , and a second positioning cylinder 133 mounted on the second adapter 131 . The second elastic member is mounted on the second positioning frame 132 .

[0066] The first and second positioning assemblies 12, 13 have identical structures and are arranged in mirror-image symmetry. The first and second guide rails 20, 21 are parallel, and both extend along a first straight line. The frame 11 is provided with a plurality of first positioning holes 1142 spaced along the extension direction of the first guide rail 20 and a plurality of second positioning holes 1152 spaced along the extension direction of the second guide rail 21. The first positioning holes 1142 are located in the travel path of the output end of the first positioning cylinder 123, and the second positioning holes 1152 are located in the travel path of the output end of the second positioning cylinder 133.

[0067] When the first positioning frame 122 and the second positioning frame 132 slide along the first guide rail 20 and the second guide rail 21 respectively, so that the first positioning part 125 and the second positioning part 135 clamp the steel mesh body 24, the first positioning cylinder 123 cooperates with multiple groups of first positioning holes 1142, and the second positioning cylinder 133 cooperates with multiple groups of second positioning holes 1152 to complete the distance locking between the first positioning part 125 and the second positioning part 135, thereby realizing the adjustment and positioning of the steel mesh body 24 of multiple sizes in the width direction.

[0068] Optionally, a first wedge-shaped chamfer 129 is provided at the upper end of the first positioning frame 122, and a second wedge-shaped chamfer 139 is provided at the upper end of the second positioning frame 132. The first wedge-shaped chamfer 129 is located above the first support portion 124, and the second wedge-shaped chamfer 139 is located above the second support portion 134. The first wedge-shaped chamfer and the second wedge-shaped chamfer serve as guides, making it convenient to guide the steel mesh body 24 to move to the first support portion 124 and the second support portion 134.

[0069] Furthermore, the first positioning assembly 12 also includes a first positioning insertion and extraction fork 127 mounted on the output end of the first positioning cylinder 123, and a first positioning insertion and extraction rod 128 mounted on the first positioning insertion and extraction fork 127. The second positioning assembly 13 also includes a second positioning insertion and extraction fork 137 mounted on the output end of the second positioning cylinder 133, and a second positioning insertion and extraction rod 138 mounted on the second positioning insertion and extraction fork 137. The first positioning hole 1142 is located in the movement path of the first positioning insertion and extraction rod 128, and the second positioning hole 1152 is located in the movement path of the second positioning insertion and extraction rod 138.

[0070] Since the output end of the first positioning cylinder 123 and the output end of the second positioning cylinder 133 cannot directly withstand shear force, which will damage the cylinders, locking and positioning are achieved by cooperating with the first positioning plug-in rod 128 by the first positioning plug-in fork 127 and the second positioning plug-in fork 137 and the second positioning plug-in rod 138. The first positioning plug-in fork 127 is a Z-shaped sheet metal part, one end of which is connected to the output end of the first positioning cylinder 123, and the other end of the first positioning plug-in fork 127 is forked and stuck at one end of the first positioning plug-in rod 128. The other end of the first positioning plug-in rod 128 passes through the pin hole of the first adapter 121. When the first positioning cylinder 123 is started, the first positioning plug-in rod 128 can be driven to be inserted into the first positioning hole 1142. The structures and connection methods of the second positioning cylinder 133, the second positioning plug-in fork 137, and the second positioning plug-in rod 138 are similar and will not be repeated here. In other embodiments, a floating joint may be used instead of the first positioning plug-in fork 127 and the second positioning plug-in fork 137 .

[0071] In one embodiment, the frame 11 includes a first base 114. The first base 114 is provided with a plurality of first scale bars 1141 spaced apart along the extending direction of the first guide rail 20. The first scale bars 1141 on the first base 114 facilitate adjustment of the sliding distance of the first positioning assembly 12 and the second positioning assembly 13.

[0072] In one embodiment, the frame 11 includes a second base 115 having a plurality of second scale bars 1151 spaced apart along the extension direction of the second guide rail 21. The second scale bars 1151 on the second base 115 facilitate adjustment of the sliding distance of the first positioning assembly 12 and the second positioning assembly 13.

[0073] In this embodiment, the first positioning assembly 12 and the second positioning assembly 13 can both slide relative to the frame 11. The first base 114 is provided with a plurality of first scale bars 1141 spaced apart from each other, and the second base 115 is provided with a plurality of second scale bars 1151 spaced apart from each other. The plurality of first scale bars 1141 assist the first positioning assembly 12 in accurately sliding to the desired position, and the plurality of second scale bars 1151 assist the second positioning assembly 13 in accurately sliding to the desired position. The plurality of first scale bars 1141 and the plurality of second scale bars 1151 can also facilitate the widthwise adjustment and positioning of the steel mesh body 24 of various sizes. Specifically, the frame 11 further includes a first support beam 111, a connecting beam 112, and a second support beam 113 connected in sequence. The first support beam 111 and the second support beam 113 are spaced apart and parallel to each other. The first positioning assembly 12 and the second positioning assembly 13 are both slidably mounted on the connecting beam 112 and located between the first support beam 111 and the second support beam 113. The first support beam 111 and / or the second support beam 113 are slidably mounted with a third positioning assembly 14. The first positioning assembly 12, the second positioning assembly 13, and the third positioning assembly 14 are all slidably mounted between the first support beam 111 and the second support beam 113. One end of the first support beam 111 and one end of the second support beam 113 are respectively connected to the two ends of the connecting beam 112. The other end of the first support beam 111 is provided with a first base 114, and the other end of the second support beam 113 is provided with a second base 115. A first mounting plate 118 and a second mounting plate 119 are spaced apart on the connecting beam 112, the first base 114 and the first mounting plate 118 are both provided with a first guide rail 20, the second base 115 and the second mounting plate 119 are both provided with a second guide rail 21, the first positioning frame 122 is respectively installed on the first guide rail 20 on the first base 114 and the first guide rail 20 on the first mounting plate 118, the second positioning frame 132 is respectively installed on the second guide rail 21 on the second base 115 and the second guide rail 21 on the second mounting plate 119, so as to improve the sliding stability of the first positioning frame 122 and the second positioning frame 132.

[0074] Furthermore, due to the multiple first scale bars 1141 spaced apart on the first base 114 and the multiple second scale bars 1151 spaced apart on the second base 115, the present application can use a single side as a center positioning reference, which is compatible with steel mesh bodies 24 of multiple sizes. For example, the position of the first positioning component 12 is first adjusted by the multiple first scale bars 1141 on the first base 114, and then the first positioning component 12 is used as a reference to drive the second positioning component 13 to adjust the position according to the multiple second scale bars 1151 on the second base 115. It is understandable that the second positioning component 13 can also be used as a reference.

[0075] Optionally, one end of the first positioning frame 122 close to the first guide wheel 18 and one end of the second positioning frame 132 close to the second guide wheel 19 are both provided with chamfers, which cooperate with the first guide wheel 18 and the second guide wheel 19 to facilitate manual loading and unloading of the steel mesh body 24 and reduce operating pressure.

[0076] In one embodiment, the first mounting plate 118 and the first base 114 are each provided with a plurality of first positioning holes 1142, and the second mounting plate 119 and the second base 115 are each provided with a plurality of second positioning holes 1152. Both ends of the first positioning frame 122 are locked by the cooperation of the first positioning cylinder 123, the first positioning insertion fork 127, and the first positioning insertion rod 128. Both ends of the second positioning frame 132 are locked by the cooperation of the second positioning cylinder 133, the second positioning insertion fork 137, and the second positioning insertion rod 138. The first positioning cylinder 123 and the second positioning cylinder 133 are controlled by pneumatic valves or manual valves.

[0077] Optionally, a sensor 23 for detecting the steel mesh is provided on the first positioning assembly 12 and / or the second positioning assembly 13. The sensor 23 is provided on the first positioning frame 122 and / or the second positioning frame 132. The sensor 23 is a photoelectric sensor 23 or the like, which can detect whether there is a steel mesh body 24 between the first positioning assembly 12 and the second positioning assembly 13.

[0078] Furthermore, the frame 11 also includes a guide beam 116 mounted on the first base 114 and / or the second base 115. The guide beam 116 is provided with a plurality of guide blocks 117 spaced apart along the extension direction of the first guide rail 20. Specifically, the frame 11 is provided with the first base 114 and the second base 115 spaced apart. The ends of the guide beam 116 are connected to the first base 114 and the second base 115, respectively. During loading and unloading, the steel mesh body 24 can be placed between the first positioning assembly 12 and the second positioning assembly 13 from the guide beam 116. A plurality of guide blocks 117 are provided at each end of the guide beam 116. The guide blocks 117 at each end of the guide beam 116 correspond to each other and can serve as support and guide for loading and unloading steel mesh bodies 24 of various sizes. For example, the two guide blocks 117 near the ends of the guide beam 116 are adapted to fit the steel mesh body 24 with the largest width. The guide blocks 117 are chamfered on all sides to facilitate loading and unloading of the steel mesh body 24.

[0079] Key References Figure 10 In one embodiment, a third guide rail 22 is mounted on the frame 11, and a third slider is slidably mounted on the third guide rail 22. The third positioning assembly 14 includes a bracket 141 mounted on the third slider, a third cylinder 142 mounted on the bracket 141, and a push plate 143 connected to the output end of the third cylinder 142. The pushing portion 144 is located on the push plate 143. Specifically, the push plate 143 is L-shaped, and the pushing portion 144 is located at the inner right angle of the push plate 143. The third cylinder 142 drives the push plate 143 to move up and down, so that the push plate 143 acts on the steel mesh body 24. A screw module is mounted on the frame 11, which is transmission-connected to the bracket 141. The screw module then drives the bracket 141 to slide along the third guide rail 22, thereby pushing the steel mesh body 24 to move.

[0080] This application describes positioning a stencil body 24 with a width of 750 mm. The stencil positioning device operates as follows: When the stencil body 24 is not loaded, the first locking member 16 and the second locking member 17 are released, the output end of the first positioning cylinder 123 is away from the first positioning hole 1142, and the output end of the second positioning cylinder 133 is away from the second positioning hole 1152. The stencil body 24 is then introduced and placed on the first support portion 124 of the first positioning frame 122. The stencil body 24 is then pushed to the first stop 126 of the first positioning frame 122, with one longitudinal end of the stencil body 24 abutting the first stop 126 to achieve positioning. Next, based on the width of the stencil body 24 being placed and referring to the first scale bar 1141 on the first base 114, the first positioning frame 122 is first pushed to the position marked with the first scale bar 1141 (750). The first positioning cylinder 123 is then controlled to insert the first positioning rod 128 into the first positioning hole 1142. At this time, the first positioning frame 122 serves as a reference for precise positioning of the steel mesh in the width direction.

[0081] Then, referring to the second scale bar 1151 on the second base 115, push the second positioning frame 132 to the position of the second scale bar 1151 marked with 750, and then control the second positioning cylinder 133 so that the second positioning plug-in rod 138 is inserted into the second positioning hole 1152 to realize the adjustment and positioning of the steel mesh body 24 in the width direction. During this process, the first elastic member 15 can prevent the steel mesh body 24 from being damaged by compression.

[0082] After completing the above steps, the third positioning assembly 14, in conjunction with the sensor 23, senses the presence or absence of a signal from the stencil body 24, controlling the third cylinder 142 to drive the push plate 143 to abut one end of the stencil body 24 in the longitudinal direction. Based on the stencil's longitudinal dimensions, the corresponding parameters are selected. The screw module drives the third positioning assembly 14 according to the parameter configuration, and the push plate 143 pushes the stencil body 24 to a specified stop, thereby achieving precise longitudinal positioning of the stencil body 24.

[0083] When the steel mesh is precisely positioned in both the length and width directions, the first locking member 16 and the second locking member 17 lock the steel mesh body 24, and the third positioning component 14 is reset, ultimately realizing the adjustment and positioning of the steel mesh body 24 with a single side as the center positioning reference and compatibility with multiple sizes.

[0084] In general, the steel mesh positioning device of the present application has a simple structure, moderate cost, and high positioning accuracy. It can use a single side edge as the center positioning reference and is compatible with the adjustment and positioning of steel meshes of multiple sizes and specifications. It can solve the problems of loose adjustment and positioning, poor accuracy or low efficiency in the existing technology.

[0085] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. A steel mesh positioning device, characterized in that: include: Frame (11); A first positioning component (12) and a second positioning component (13); the first positioning component (12) and / or the second positioning component (13) are slidably arranged on the frame (11) along a first straight line direction, a positioning space is formed between the first positioning component (12) and the second positioning component (13), and the first positioning component (12) is provided with a first elastic member (15) located in the positioning space and / or the second positioning component (13) is provided with a second elastic member located in the positioning space; as well as The third positioning assembly (14) is slidably arranged on the frame (11) along a second straight line direction. The third positioning assembly (14) has a pushing portion (144) located between the first positioning assembly (12) and the second positioning assembly (13).

2. The steel mesh positioning device according to claim 1, characterized in that: The first positioning assembly (12) is equipped with a first locking member (16) and / or the second positioning assembly (13) is equipped with a second locking member (17), the first locking member (16) having a movably mounted first locking portion, and the second locking member (17) having a movably mounted second locking portion; The first positioning component (12) has a first supporting portion (124) and a first positioning portion (125) located above the first supporting portion (124); the second positioning component (13) has a second supporting portion (134) and a second positioning portion (135) located above the second supporting portion (134); the first positioning portion (125) and the second positioning portion (135) are arranged relative to each other; the first elastic member (15) is mounted on the first positioning portion (125) and / or the second elastic member is mounted on the second positioning portion (135); a first locking gap is formed between the first locking portion and the first supporting portion (124) and / or a second locking gap is formed between the second locking portion and the second supporting portion (134).

3. The steel mesh positioning device according to claim 2, characterized in that: The first positioning assembly (12) is provided with a first limiting portion (126), the second positioning assembly (13) is provided with a second limiting portion (136), the first limiting portion (126) and the first supporting portion (124) are arranged in sequence along the sliding path of the third positioning assembly (14), and the second limiting portion (136) and the second supporting portion (134) are arranged in sequence along the sliding path of the third positioning assembly (14).

4. The steel mesh positioning device according to claim 3, characterized in that: A first guide wheel (18) is installed on the first positioning assembly (12), a second guide wheel (19) is installed on the second positioning assembly (13), the first support portion (124) is located between the first guide wheel (18) and the first limiting portion (126), and the second support portion (134) is located between the second guide wheel (19) and the second limiting portion (136).

5. The steel mesh positioning device according to any one of claims 1 to 4, characterized in that: A first guide rail (20) and a second guide rail (21) are installed on the frame (11); a first slider is slidably mounted on the first guide rail (20); and a second slider is slidably mounted on the second guide rail (21); The first positioning assembly (12) comprises a first adapter seat (121) mounted on the first slider, a first positioning frame (122) mounted on the first adapter seat (121), and a first positioning cylinder (123) mounted on the first adapter seat (121); the first elastic member (15) is mounted on the first positioning frame (122); The second positioning assembly (13) includes a second adapter seat (131) mounted on the second slider, a second positioning frame (132) mounted on the second adapter seat (131), and a second positioning cylinder (133) mounted on the second adapter seat (131); the second elastic member is mounted on the second positioning frame (132); The first guide rail (20) and the second guide rail (21) are parallel, and the frame (11) is provided with a plurality of first positioning holes (1142) arranged at intervals along the extension direction of the first guide rail (20) and a plurality of second positioning holes (1152) arranged at intervals along the extension direction of the second guide rail (21), the first positioning holes (1142) are located on the moving path of the output end of the first positioning cylinder (123), and the second positioning holes (1152) are located on the moving path of the output end of the second positioning cylinder (133).

6. The steel mesh positioning device according to claim 5, characterized in that: The first positioning assembly (12) further comprises a first positioning plug-in fork (127) mounted on the output end of the first positioning cylinder (123) and a first positioning plug-in rod (128) mounted on the first positioning plug-in fork (127); the second positioning assembly (13) further comprises a second positioning plug-in fork (137) mounted on the output end of the second positioning cylinder (133) and a second positioning plug-in rod (138) mounted on the second positioning plug-in fork (137); The first positioning hole (1142) is located on the moving path of the first positioning plug-in rod (128), and the second positioning hole (1152) is located on the moving path of the second positioning plug-in rod (138).

7. The steel mesh positioning device according to claim 5, characterized in that: The frame (11) includes a first base (114) and / or a second base (115); The first base (114) is provided with a plurality of first scale bars (1141) spaced apart along the extension direction of the first guide rail (20); and / or The second base (115) is provided with a plurality of second scale bars (1151) arranged at intervals along the extension direction of the second guide rail (21).

8. The steel mesh positioning device according to claim 7, characterized in that: The frame (11) further includes a guide beam (116) mounted on the first base (114) and / or the second base (115), and the guide beam (116) is provided with a plurality of guide blocks (117) spaced apart along the extension direction of the first guide rail (20).

9. The steel mesh positioning device according to any one of claims 1 to 4, characterized in that: The frame (11) is provided with a third guide rail (22), and a third slider is slidably provided on the third guide rail (22); The third positioning assembly (14) includes a bracket (141) mounted on the third slider, a third cylinder (142) mounted on the bracket (141), and a push plate (143) connected to the output end of the third cylinder (142); the pushing portion (144) is located on the push plate (143).

10. The steel mesh positioning device according to any one of claims 1 to 4, characterized in that: The first positioning component (12) and / or the second positioning component (13) is provided with a sensor (23) for detecting the steel mesh.

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