Positioning device, machining table, plate machining equipment and plate machining method

Abstract

The invention discloses a positioning device, a machining table, plate machining equipment and a plate machining method.The positioning device comprises an air cylinder, a positioning seat and a positioning piece, the air cylinder is arranged in an installation space of the machining table and comprises a driving rod, the positioning seat is connected to the driving rod, and the positioning piece is connected to the positioning seat; the positioning piece can penetrate through a machining table panel of the machining table and move in the thickness extending direction of the machining table panel. When the PCB is processed, the air cylinder pre-mounted on the processing table is controlled to move, so that the positioning piece ascends and penetrates through the avoiding hole of the panel of the processing table and the limiting hole of the plate placed on the panel of the processing table, thereby realizing positioning of the plate and ensuring that the plate does not deviate in the processing process; according to the plate machining device, the plate is positioned through the positioning device, pins do not need to be installed on the machining table panel to position the plate, the service life of the machining table panel is prolonged, the production cost is reduced, and the equipment utilization rate is increased.

Description

Technical Field

[0001] The present application relates to the technical field of PCB board processing, and specifically relates to a positioning device, a processing table, a sheet processing device, and a sheet processing method. Background Art

[0002] In order to ensure the processing effect of the PCB board, it is necessary to position it before processing the PCB board. The general positioning method is to first pre-drill positioning holes on the PCB board, then drill corresponding pin holes on the processing table panel. After inserting the pins into the pin holes of the processing panel, the PCB board is placed on the processing table surface, and the positioning holes of the PCB board are sleeved on the pins to achieve the cooperative positioning of the pins and the PCB board, ensuring that the PCB board and the processing table panel cooperate with each other during the processing process and do not shift.

[0003] The existing processing table panel is generally made of bakelite. Due to the characteristics of bakelite being easy to get damp and deform, in order to ensure the processing accuracy, the pins inserted into the processing table panel need to be pulled out after being used for a period of time, and then new pin holes are drilled and pins are inserted at other positions on the processing table panel. In this way, not only will it affect the processing continuity of a large number of PCB boards, but the service life of the processing table panel will also be reduced accordingly, increasing the production cost, and the equipment utilization rate will also be reduced. Summary of the Invention

[0004] In order to overcome the problems existing in the above-mentioned prior art, the main purpose of the present application is to provide a positioning device that can reduce production costs.

[0005] In order to achieve the above purpose, the present application specifically adopts the following technical solutions:

[0006] In the first aspect, the present application provides a positioning device, which is applied to a processing table of a sheet processing device. The processing table includes a support table and a processing table panel; the positioning device includes:

[0007] A cylinder, the cylinder is arranged in the installation space between the support table and the processing table panel, and the cylinder includes a driving rod;

[0008] A positioning seat, the positioning seat is connected to the driving rod;

[0009] A positioning member, the positioning member is connected to the positioning seat, and the positioning member can penetrate through the processing table panel and move along the thickness extension direction of the processing table panel.

[0010] In some embodiments, the positioning member has an open state and a contracted state, and the cross-sectional area of the positioning member in the open state is larger than the cross-sectional area of the positioning member in the contracted state.

[0011] In some embodiments, the positioning seat is threadedly connected to the driving rod.

[0012] In some embodiments, the driving rod is provided with a first threaded hole, and the positioning seat includes a threaded connection portion which is threadedly connected to the first threaded hole.

[0013] In some embodiments, the driving rod is further provided with a guiding hole which communicates with the first threaded hole and is located at an end of the first threaded hole away from the positioning member;

[0014] The positioning seat further includes a guiding and positioning portion which is connected to the threaded connection portion and is located at an end of the threaded connection portion away from the positioning member, and the guiding and positioning portion passes through the guiding hole.

[0015] In some embodiments, the guiding and positioning portion is in interference or transitional fit with the guiding hole.

[0016] In some embodiments, the positioning seat further includes a mounting portion which is connected to an end of the threaded connection portion away from the guiding and positioning portion, and the mounting portion is provided with a positioning hole, and the positioning member is assembled in the positioning hole.

[0017] In some embodiments, the positioning member is in transitional fit with the positioning hole.

[0018] In some embodiments, the positioning device further includes a screw, and the mounting portion is further provided with a second threaded hole, and the screw passes through the second threaded hole for locking the positioning member.

[0019] In some embodiments, the cylinder further includes a cylinder body and a bearing. The cylinder body includes a receiving cavity having an opening, the bearing is assembled in the opening, one end of the driving rod is disposed in the receiving cavity, and the other end of the driving rod cooperates with the bearing.

[0020] In a second aspect, the present application further provides a processing table which includes a support table, a processing table panel, and a plurality of positioning devices as described in any of the above embodiments. The processing table panel is disposed above the support table so as to form an installation space between the processing table panel and the support table. The plurality of positioning devices are respectively disposed on the support table and are located in the installation space, and the positioning members of the positioning devices can pass through the processing table panel and move along the thickness extension direction of the processing table panel.

[0021] In some embodiments, the plurality of positioning devices are evenly distributed in the installation space.

[0022] In a third aspect, the present application further provides a sheet processing device, which includes a processing table as described in any of the above embodiments. The processing table further includes a support base, the support base is disposed on the support table, the processing table panel is disposed on the support base, and there is an installation space between the processing table panel and the support table. A plurality of the positioning devices are respectively disposed on the support table and located in the installation space, and the positioning member of the positioning device can penetrate through the processing table panel and move along the thickness extension direction of the processing table panel, so that the positioning member can penetrate into the limiting hole of the sheet placed on the processing table panel.

[0023] In a fourth aspect, the present application further provides a sheet processing method, which is applied to the sheet processing device as described in the above embodiments. The sheet processing device includes a positioning device, a support table, a processing table panel, a main shaft and a tool mounted on the main shaft. The positioning device includes a cylinder, a positioning seat and a positioning member. The positioning seat is connected to the driving rod of the cylinder. The sheet processing method includes:

[0024] Install the positioning device on the support table and in the installation space between the support table and the processing table panel;

[0025] Control the positioning member of the positioning device to penetrate through the processing table panel, so that the positioning member can be sleeved and positioned with the sheet placed on the processing table panel;

[0026] Control the tool to process the sheet.

[0027] In some embodiments, the step of installing the positioning device on the support table and in the installation space between the support table and the processing table panel includes:

[0028] Pre-install the cylinder on the support table, wherein the cylinder is connected with the positioning seat, and the positioning seat is not provided with a positioning hole;

[0029] Based on the position of the limiting hole of the sheet, control the main shaft to move to each corresponding position, and then position the cylinder based on each corresponding position where the main shaft is located;

[0030] Lock the cylinder to the support table;

[0031] Control the tool to drill the positioning seat connected to the cylinder to obtain a positioning hole;

[0032] Assemble the positioning member into the positioning hole of the positioning seat;

[0033] Assemble the processing table panel above the support table, and make the position of the positioning member correspond to the position of the avoidance hole of the processing table panel.

[0034] In some embodiments, the installation space for installing the positioning device on the support table and located between the support table and the processing table panel includes:

[0035] Pre-install the cylinder on the support table, wherein the cylinder is connected to the positioning seat, and the positioning seat is provided with a positioning hole;

[0036] Control the main shaft to move to each corresponding position based on the position of the limiting hole of the plate, and then position the cylinder based on each corresponding position where the main shaft is located;

[0037] Lock the cylinder to the support table;

[0038] Assemble the positioning member into the positioning hole pre-opened in the positioning seat;

[0039] Assemble the processing table panel above the support table, and set the position of the positioning member corresponding to the position of the avoidance hole of the processing table panel.

[0040] In some embodiments, the installation space for installing the positioning device on the support table and located between the support table and the processing table panel includes:

[0041] Pre-install the cylinder on the support table, wherein the cylinder includes a first cylinder, a second cylinder and a third cylinder, and the positioning seat connected to the first cylinder and the second cylinder is not assembled with a positioning member, and the positioning seat connected to the third cylinder is assembled with a positioning member;

[0042] Control the main shaft to move to the corresponding position based on the position of the limiting hole of the plate, and then position the first cylinder and the second cylinder based on the corresponding position where the main shaft is located;

[0043] Lock the first cylinder and the second cylinder;

[0044] Assemble the positioning member into the positioning seat connected to the first cylinder and the second cylinder;

[0045] Position the third cylinder based on the positions of the first cylinder and the second cylinder;

[0046] Lock the third cylinder;

[0047] Assemble the processing table panel above the support table, and set the position of the positioning member corresponding to the position of the avoidance hole of the processing table panel.

[0048] In some embodiments, the positioning member for controlling the positioning device passes through the processing table panel so that the positioning member can be sleeved and positioned with the plate placed on the processing table panel, including:

[0049] Fix the plate placed on the processing table panel to the processing table panel;

[0050] Control the positioning member of the positioning device to pass through the processing table panel and penetrate into the limiting hole of the plate to limit the plate.

[0051] Compared with the prior art, the positioning device of the present application includes a cylinder, a positioning seat and a positioning member. The cylinder is arranged in the installation space of the processing table, and the cylinder includes a driving rod. The positioning seat is connected to the driving rod, and the positioning member is connected to the positioning seat. It is equivalent to having a movable positioning device embedded in the processing table. Specifically, when processing a PCB board, control the cylinder pre-installed on the processing table to move, so that the positioning member makes a rising movement and passes through the avoidance hole of the processing table panel and the limiting hole of the plate placed on the processing table panel, thereby realizing the positioning of the plate and ensuring that the plate does not shift during the processing process. The present application positions the plate through the positioning device assembled on the processing table. The positioning device can be reused without installing pins on the processing table panel to position the plate. That is, without the plugging and unplugging pin process of the traditional technology, the problem of short service life of the processing table panel caused by repeatedly drilling pin holes in the processing panel to implant pins is solved. That is, the present application can improve the service life of the processing table panel, reduce the production cost, and improve the equipment operation rate. Description of the Drawings

[0052] Figure 1 It is a cross-sectional view of the processing table of the plate processing equipment provided by the embodiment of the present application.

[0053] Figure 2 It is a three-dimensional view of the processing table of the plate processing equipment provided by the embodiment of the present application.

[0054] Figure 3 is Figure 2 The partial enlarged view at A in.

[0055] Figure 4 It is a three-dimensional view of the processing table with a plate placed thereon provided by the embodiment of the present application.

[0056] Figure 5 is Figure 1 The three-dimensional exploded view of the positioning device in.

[0057] Figure 6 is Figure 1 The cross-sectional view of the positioning device in.

[0058] Figure 7It is a flowchart of the sheet processing method provided by the embodiment of the present application.

[0059] Attached drawing reference signs:

[0060] 1. Cylinder; 11. Cylinder block; 111. Accommodating cavity; 12. Driving rod; 121. Guide hole; 122. Threaded hole; 13. Bearing

[0061] 2. Positioning seat; 21. Guide positioning part; 22. Threaded connection part; 23. Mounting part; 231. Positioning hole

[0062] 3. Positioning piece

[0063] 100. Positioning device

[0064] 200. Sheet processing equipment; 201. Support table; 202. Processing table panel; 202a. Avoidance hole; 202b. Fixing hole; 202c. Thru-hole for ejector pin; 203. Support seat

[0065] 300. Sheet Detailed implementation manners

[0066] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0067] In the description of the present application, unless otherwise clearly specified and defined, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; unless otherwise specified or stated, the term "plural" means two or more, and the term "multiple types" means two or more; the terms "connection", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0068] In the description of this specification, it should be understood that the orientation terms such as "upper" and "lower" described in the embodiments of the present application are described from the angles shown in the attached drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that an element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element.

[0069] In the mass production stage of PCB boards with the same part number, the positions of the positioning process holes on the PCB boards will not change. If the stability of the positioning pins inserted into the processing table panel is poor due to the characteristics of the bakelite board itself, personnel need to repeat the insertion and extraction actions of the pins at regular intervals, which increases the working intensity of the operators, reduces the equipment operation rate, and also reduces the service life of the processing table panel. On the basis of ensuring the processing accuracy of the PCB board, the positioning device of the present application further reduces the insertion and extraction times of the positioning pins on the processing table, improves the equipment operation rate and the service life of the processing table panel.

[0070] Referring to Figures 1 to 4 As shown, an embodiment of the present application discloses a sheet processing device 200, which includes a main shaft, a processing table, a support seat 203 and a positioning device 100. The processing table includes a support table 201 and a processing table panel 202. There are multiple support seats 203 and positioning devices 100 respectively. The multiple support seats 203 are respectively arranged on the support table 201. The processing table panel 202 is arranged on the support table 201 and above the support table 201 to fixedly support the processing table panel 202 through the multiple support seats 203, so that there is an installation space between the processing table panel 202 and the support table 201. The processing table panel 202 is provided with multiple avoidance holes 202a, fixing holes 202b and ejector pin through holes 202c, and the positions of the avoidance holes 202a correspond one-to-one to the positions of the PCB board limit holes. The multiple positioning devices 100 are respectively arranged on the support table 201 and evenly distributed in the installation space, and the positions of the positioning devices 100 are arranged corresponding one-to-one to the positions of the avoidance holes 202a of the processing table panel 202. The positioning device 100 can pass through the avoidance holes 202a of the work table panel 202 and move along the thickness extension direction of the processing table panel 202, so that the positioning device 100 can penetrate into the PCB board to position the sheet placed on the processing table panel 202. The main shaft is arranged above the processing table panel 202 and is used for milling and cutting the PCB board placed on the processing table panel 202.

[0071] The present application positions the sheet through the positioning device 100, without installing pins on the processing table panel 202 to position the sheet, which improves the service life of the processing table panel, reduces the production cost, and improves the equipment operation rate.

[0072] Referring to Figure 5 and Figure 6As shown in the figure, the positioning device 100 includes a cylinder 1, a positioning seat 2, and a positioning member 3 (a positioning pin). The cylinder 1 is installed on the support table 201 and is located below the processing table panel 202. The cylinder 1 includes a cylinder block 11, a driving rod 12, and a bearing 13. The cylinder block 11 includes a receiving cavity 111 with an opening. The bearing 13 is assembled to the opening of the cylinder block 11. One end of the driving rod 12 is disposed in the receiving cavity of the cylinder 1, and the other end of the driving rod 12 is engaged with the bearing 13, so that the driving rod 12 is movably connected to the cylinder block 11. Thus, by connecting to a gas source, the driving rod 12 can be driven to move in a direction away from or close to the processing table panel 202. The positioning seat 2 is connected to the driving rod 12, and the positioning member 3 is connected to the positioning seat 2. During the process of sheet processing, the sheet is placed on the processing table panel 202, and the cylinder 1 is driven to move, so that the driving rod 12 makes an upward movement, thereby driving the positioning member 3 to pass through the avoidance hole 202a pre-opened on the processing table panel 202 and penetrate into the limit hole of the sheet 300, so as to limit the sheet 300. Among them, the bearing 13 can be a sliding bearing or a rolling linear bearing, and thus high-precision movement can be obtained, and the friction force between the driving rod and the bearing will also be reduced.

[0073] When it is necessary to position the PCB board, the driving rod 12 of the cylinder 1 is controlled to move, so that the driving rod 12 drives the positioning member 3 to protrude from the processing table panel 202 through the avoidance hole 202a of the processing table panel 202 and penetrate into the limit hole of the sheet placed on the processing table panel 202, so as to accurately position and limit the sheet. When it is not necessary to position the PCB board, the driving rod 12 of the cylinder 1 is controlled to move, driving the positioning member 3 to pass through the avoidance hole of the processing table panel 202 and descend to a position below the processing table panel 202, preventing the positioning member 3 from affecting the processing of the PCB board.

[0074] In this embodiment, by providing a bearing 13 in the cylinder block 11 and making the driving rod 12 cooperate with the bearing 13 to move, the accuracy of the up and down movement of the driving rod 12 can be ensured, and the long-term movement stability of the driving rod 12 can also be improved. At the same time, by installing the bearing 13, the lateral load-bearing capacity of the driving rod can also be improved, and the service life of the driving rod and the cylinder block can be extended. In addition, when the positioning seat 2 rises to the topmost position, it is always lower than the processing table panel 202 to ensure that the positioning seat 2 has no impact on the PCB board and the processing.

[0075] Specifically, a guiding hole 121 and a first threaded hole 122 are provided at the front end of the driving rod 12, and the first threaded hole 122 communicates with the guiding hole 121. The positioning seat 2 includes a threaded connection portion 22, a guiding and positioning portion 21, and a mounting portion 23. The guiding and positioning portion 21 and the mounting portion 23 are respectively connected to two ends of the threaded connection portion 22, and the mounting portion 23 is provided with a positioning hole 231. During assembly, the guiding and positioning portion 21 is inserted into the guiding hole 121, the threaded connection portion 22 is connected to the first threaded hole 122, and then the positioning member 3 is assembled into the positioning hole 231. Thus, by driving the driving rod 12 to move, the positioning member 3 can be driven to move. In this embodiment, the guiding and positioning portion and the threaded portion are integrally formed. In other embodiments, the guiding and positioning portion and the threaded portion can also be independent components, and concentricity between the positioning seat and the driving rod only needs to be ensured during machining and assembly.

[0076] Furthermore, the guiding and positioning portion 21 and the guiding hole 121 are in interference or transition fit, the positioning member 3 and the positioning hole 231 are in transition fit, and the mounting portion 23 is provided with a second threaded hole. A screw is inserted into the second threaded hole to lock the positioning member 3 through the screw. In this embodiment, by making the guiding and positioning portion 21 and the guiding hole 121 in interference or transition fit, concentricity between the positioning hole 231 on the positioning seat 2 and the driving rod 12 is ensured. Thus, when the driving rod rotates, coaxiality between the positioning hole of the positioning seat and the driving rod can still meet the precision requirements. In this embodiment, by making the positioning member and the positioning seat in transition fit and cooperating with the screw on the positioning seat to lock the positioning member, installation and disassembly of the positioning member are facilitated to achieve rapid replacement of the positioning member.

[0077] In this embodiment, the driving rod 12 is a piston rod of a cylinder, and the positioning seat 2 is mounted on the piston rod. It can be understood that in other embodiments, the driving rod can also be a cylinder output shaft or a screw drive device, and the positioning seat can also be mounted on the output end of the cylinder output shaft or the screw drive device to move up and down.

[0078] In some embodiments, if the driving rod cannot rotate, the positioning hole of the positioning seat can be directly machined and drilled by the equipment processing spindle, and its hole-opening method is the same as the method of drilling holes on the processing table panel. Additionally, if the driving rod cannot rotate, the guiding and positioning portion on the positioning seat can be cancelled, and the corresponding guiding hole of the driving rod can also be cancelled.

[0079] In some embodiments, the positioning member 3 has an open state and a contracted state, and the cross-sectional area of the positioning member 3 in the open state is larger than the cross-sectional area of the positioning member 3 in the contracted state. Exemplarily, when the cylinder 1 drives the positioning member 3 to move up or down, the positioning member 3 is in the contracted state, and the cross-sectional area of the positioning member 3 is smaller than the cross-sectional areas of the avoidance hole 202a of the processing table panel 202 and the limit hole of the plate 300, so that the positioning member 3 can pass through the avoidance hole 202a of the processing table panel 202 and the limit hole of the plate 300 more smoothly; when the positioning member 3 penetrates into the limit hole of the plate 300 and is in a state of limiting the plate 300, the positioning member 3 is in the open state. At this time, the cross-sectional area of the positioning member 3 is matched with the cross-section of the limit hole of the plate 300, so that the positioning member 3 can better position the plate 300.

[0080] When positioning the positioning member, there are various methods. The first method: When the driving rod 12 is non-rotatable, the positioning seat 2 does not have a positioning hole 231 initially. The positioning device 100 is directly fixed on the support table 201 with pre-drilled holes, and then the machining spindle picks up the tool to drill the corresponding positioning hole 231 on the positioning seat 2 according to the position of the process hole on the PCB board. After the positioning hole 231 is drilled, the operator or the equipment installs the positioning member 3 on the positioning seat 2. When machining the PCB board material, it is only necessary to fit the process holes of the PCB board material with these positioning members 3 one by one to complete the PCB board positioning. This method is the same as the method of drilling positioning holes on the processing table panel, and its position accuracy is high. The second method: The positioning seat 2 initially has the positioning hole 231 drilled, but the positioning member 3 is not installed first. Then the positioning device 100 is pre-positioned on the support table 201, and then a positioning tooling bar is installed on the machining spindle. The corresponding positioning seat 2 is adjusted and aligned according to the position of the process hole on the PCB board. After alignment, the positioning device 100 is locked to the support table. When machining the PCB board material, it is only necessary to fit the process holes of the PCB board material with these positioning members one by one to complete the PCB board positioning. Since it is necessary to adjust and align each positioning seat, this method has no requirement on whether the driving rod rotates. At the same time, this method reduces the step of drilling positioning holes, and the assembly time is shortened accordingly. The third method: The positioning seat 2 initially has the positioning hole 231 drilled, and at least 2 positioning seats 2 are reserved without installing the positioning member 3, and the positioning member 3 is installed on all the other positioning seats 2. Then all the positioning devices 100 are pre-positioned on the support table 201. Subsequently, a positioning tooling bar is installed on the machining spindle. The reserved several positioning seats are adjusted and aligned according to the position of the process hole on the PCB board. After alignment, the positioning device 100 is locked to the support table 201, and then the positioning member 3 is installed. Then, using these several positioning devices and the tooling parts pre-made according to the process holes on the PCB board, the positions of all the other positioning devices are determined. After determination, all the positioning devices are locked to the support table. When machining the PCB board material, it is only necessary to fit the process holes of the PCB board material with these positioning members one by one to complete the PCB board positioning. This method has no requirement on whether the driving rod rotates, and it reduces the position determination and debugging of each positioning device, greatly shortening the assembly time and being the easiest to achieve mass assembly.

[0081] In the mass production of PCB boards with the same part number in this embodiment, the process positioning holes will not change. Therefore, the positioning parts (pins) can be arranged on stable and reliable components (cylinders) to replace the bakelite board to achieve the positioning of the PCB board material. When the PCB board is loaded, the positioning part 3 is pushed out above the processing table top plate 202 by the telescopic cylinder, and directly sleeved with the positioning process hole of the PCB board to complete the positioning of the PCB board, and then complete the forming processing of the PCB board material. When individual pins are not needed or used, the unused pins can be retracted below the processing table top plate 202 by the telescopic cylinder to avoid interference of these pins with the PCB board. At the same time, when processing PCB boards of other batches, if these pins are not used, pins can also be arranged on the processing table top plate to complete the positioning of the PCB board, realize the processing of multi-batch board materials, and improve the utilization rate of the processing table top plate. At the same time, the positioning device of this embodiment has a simple structure and low manufacturing cost, can perform precision positioning on the PCB board, especially for the mass-formed processing board materials with the same part number, can effectively improve the processing efficiency, reduce the labor intensity of operators, and improve the service life of the processing table top plate.

[0082] Referring to Figure 7 As shown, an embodiment of the present application discloses a sheet processing method, which is applied to the sheet processing equipment described in any of the above embodiments. The sheet processing method includes:

[0083] S11. Install the positioning device on the support table and in the installation space between the support table and the processing table top plate.

[0084] Specifically, the cylinder is pre-installed on the support table, wherein the cylinder is connected with a positioning seat, and the positioning seat is not provided with a positioning hole; then the position of the limit hole of the sheet when the sheet is located on the processing table top plate is set in the program, and then the main shaft is controlled to move to each corresponding position based on the position of the limit hole set in the program, and the cylinder is positioned based on each corresponding position where the main shaft is located, and the cylinder is locked on the support table; then the tool is controlled to drill the positioning seat connected with the cylinder to obtain a positioning hole; finally, the positioning part is assembled into the positioning hole of the positioning seat, and then the processing table top plate is assembled above the support table, and the position of the positioning part is set corresponding to the position of the avoidance hole of the processing table top plate.

[0085] In some embodiments, a alignment tooling is installed on the main shaft. The air cylinder is pre-installed on the support table. The air cylinder is connected with a positioning seat, and the positioning seat is provided with a positioning hole. Then, based on the position of the limiting hole of the plate when the plate is located on the processing table panel, the position of the limiting hole is set in the program. Then, based on the position of the limiting hole set in the program, the main shaft is controlled to move to each corresponding position, and the air cylinder is positioned through the alignment tooling based on each corresponding position where the main shaft is located, and the air cylinder is locked on the support table. Then, the positioning piece is assembled into the positioning hole pre-opened in the positioning seat. Finally, the processing table panel is assembled above the support table, and the position of the positioning piece is set corresponding to the position of the avoidance hole of the processing table panel.

[0086] In other embodiments, a alignment tooling is installed on the main shaft. The air cylinder is pre-installed on the support table. The air cylinder includes a first air cylinder, a second air cylinder and a third air cylinder. The positioning seats connected to the first air cylinder and the second air cylinder are not assembled with positioning pieces, and the positioning seat connected to the third air cylinder is assembled with positioning pieces. Then, based on the position of the limiting hole of the plate when the plate is located on the processing table panel, the position of the limiting hole is set in the program. Then, based on the position of the limiting hole set in the program, the main shaft is controlled to move to the corresponding position, and the first air cylinder and the second air cylinder are positioned through the alignment tooling based on the corresponding position where the main shaft is located. After positioning, the first air cylinder and the second air cylinder are locked. The positioning piece is assembled into the positioning seat connected to the first air cylinder and the second air cylinder. The third air cylinder is positioned based on the positions of the first air cylinder and the second air cylinder. After positioning, the third air cylinder is locked. Finally, the processing table panel is assembled above the support table, and the position of the positioning piece is set corresponding to the position of the avoidance hole of the processing table panel. Among them, there is at least one first air cylinder and one second air cylinder, and multiple third air cylinders can be provided.

[0087] S12. Control the positioning piece of the positioning device to pass through the processing table panel so that the positioning piece can be sleeved and positioned with the plate placed on the processing table panel.

[0088] Specifically, place the plate on the processing table panel, fix the plate placed on the processing table panel to the processing table panel, and then control the positioning piece of the positioning device to pass through the processing table panel and penetrate into the limiting hole of the plate to realize the positioning of the plate.

[0089] S13. Control the tool to process the plate.

[0090] In this embodiment, by installing the positioning member on the driving rod (or the piston rod of the cylinder) as the positioning pin of the PCB board, the change in the accuracy of the positioning pin caused by the characteristics of the bakelite can be avoided, the stability of the positioning pin can be improved, and at the same time, the number of times of inserting and pulling out the pin on the processing tabletop can be reduced, improving the processing efficiency of the equipment and the service life of the processing tabletop. It is particularly suitable for mass production and processing of PCB boards with the same part number. At the same time, the positioning seat and the positioning pin are in transitional fit, and fixing screws are arranged on both sides. Therefore, the positioning pin can be replaced to avoid the decrease in positioning accuracy caused by the overlong use time and excessive wear of the positioning pin.

[0091] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A positioning device is applied to a processing table of a sheet processing device, and the processing table includes a support table and a processing table panel; Characterized in that, The positioning device includes: A cylinder, the cylinder is arranged in an installation space between the support table and the processing table panel, and the cylinder includes a driving rod; A positioning seat, the positioning seat is connected to the driving rod; A positioning member, the positioning member is connected to the positioning seat, and the positioning member can penetrate through the processing table panel and move along the thickness extension direction of the processing table panel.

2. The positioning device according to claim 1, Characterized in that, The positioning member has an open state and a contracted state, and the cross-sectional area of the positioning member in the open state is larger than the cross-sectional area of the positioning member in the contracted state.

3. The positioning device according to claim 1, Characterized in that, The positioning seat is threadedly connected to the driving rod.

4. The positioning device according to claim 3, Characterized in that, The driving rod is provided with a first threaded hole, the positioning seat includes a threaded connection portion, and the threaded connection portion is threadedly connected to the first threaded hole.

5. The positioning device according to claim 4, Characterized in that, The driving rod is further provided with a guiding hole, the guiding hole communicates with the first threaded hole and is located at an end of the first threaded hole away from the positioning member; The positioning seat further includes a guiding and positioning portion, the guiding and positioning portion is connected to the threaded connection portion and is located at an end of the threaded connection portion away from the positioning member, and the guiding and positioning portion penetrates through the guiding hole.

6. The positioning device according to claim 5, Characterized in that, The guiding and positioning portion is in interference or transition fit with the guiding hole.

7. The positioning device according to claim 5, Characterized in that, The positioning seat further includes an installation portion, the installation portion is connected to an end of the threaded connection portion away from the guiding and positioning portion, and the installation portion is provided with a positioning hole, and the positioning member is assembled in the positioning hole.

8. The positioning device according to claim 7, Characterized in that, The positioning member is in transition fit with the positioning hole.

9. The positioning device according to claim 8, Characterized in that, The positioning device further includes a screw, the installation portion is further provided with a second threaded hole, and the screw penetrates through the second threaded hole for locking the positioning member.

10. The positioning device according to any one of claims 1 to 9, Characterized in that, The cylinder further includes a cylinder body and a bearing, the cylinder body includes a receiving cavity with an opening, the bearing is assembled in the opening, one end of the driving rod is arranged in the receiving cavity, and the other end of the driving rod is matched with the bearing.

11. A processing table, Characterized in that, Comprising a support table, a processing table panel, and a plurality of positioning devices as described in any one of claims 1 to 10, the processing table panel is disposed above the support table, so as to form an installation space between the processing table panel and the support table, and the plurality of positioning devices are respectively disposed on the support table and located within the installation space, and the positioning member of the positioning device can penetrate through the processing table panel and move along the thickness extension direction of the processing table panel.

12. The processing table according to claim 11, wherein, the plurality of positioning devices are evenly distributed within the installation space.

13. A sheet processing device, wherein, comprising the processing table as described in claim 11 or 12, the processing table further includes a support base, the support base is disposed on the support table, the processing table panel is disposed on the support base, and there is an installation space between the processing table panel and the support table, and the plurality of positioning devices are respectively disposed on the support table and located within the installation space, and the positioning member of the positioning device can penetrate through the processing table panel and move along the thickness extension direction of the processing table panel, so that the positioning member can penetrate into the limit hole of the sheet placed on the processing table panel.

14. A sheet processing method, applied to the sheet processing device as described in claim 13, the sheet processing device includes a positioning device, a support table, a processing table panel, a main shaft, and a tool mounted on the main shaft, the positioning device includes a cylinder, a positioning seat, and a positioning member, and the positioning seat is connected to the driving rod of the cylinder, wherein, the sheet processing method includes: installing the positioning device on the support table and located within the installation space between the support table and the processing table panel; controlling the positioning member of the positioning device to penetrate through the processing table panel, so that the positioning member can be sleeved and positioned with the sheet placed on the processing table panel; controlling the tool to process the sheet.

15. The sheet processing method according to claim 14, wherein, the installing the positioning device on the support table and located within the installation space between the support table and the processing table panel includes: pre-installing the cylinder on the support table, wherein the cylinder is connected with the positioning seat, and the positioning seat is not provided with a positioning hole; controlling the main shaft to move to each corresponding position based on the position of the limit hole of the sheet, and then positioning the cylinder based on each corresponding position where the main shaft is located; locking the cylinder to the support table; controlling the tool to drill the positioning seat connected to the cylinder to obtain a positioning hole; assembling the positioning member into the positioning hole of the positioning seat; assembling the processing table panel above the support table, and making the position of the positioning member correspond to the position of the avoidance hole of the processing table panel.

16. The sheet processing method according to claim 14, wherein, the installing the positioning device on the support table and located within the installation space between the support table and the processing table panel includes: Pre-install the cylinder on the support table, wherein the cylinder is connected with the positioning seat, and the positioning seat is provided with a positioning hole; Control the main shaft to move to each corresponding position based on the position of the limiting hole of the plate, and then position the cylinder based on each corresponding position where the main shaft is located; Lock the cylinder to the support table; Assemble the positioning member into the positioning hole pre-opened in the positioning seat; Assemble the processing table panel above the support table, and make the position of the positioning member correspond to the position of the avoidance hole of the processing table panel.

17. The plate processing method according to claim 14, characterized in that, The installation of the positioning device on the support table and in the installation space between the support table and the processing table panel includes: Pre-install the cylinder on the support table, wherein the cylinder includes a first cylinder, a second cylinder and a third cylinder, and the positioning seats connected to the first cylinder and the second cylinder are not assembled with positioning members, and the positioning seat connected to the third cylinder is assembled with positioning members; Control the main shaft to move to the corresponding position based on the position of the limiting hole of the plate, and then position the first cylinder and the second cylinder based on the corresponding position where the main shaft is located; Lock the first cylinder and the second cylinder; Assemble the positioning member into the positioning seat connected to the first cylinder and the second cylinder; Position the third cylinder based on the positions of the first cylinder and the second cylinder; Lock the third cylinder; Assemble the processing table panel above the support table, and make the position of the positioning member correspond to the position of the avoidance hole of the processing table panel.

18. The plate processing method according to any one of claims 14 to 17, characterized in that, The control that the positioning member of the positioning device passes through the processing table panel so that the positioning member can be sleeved and positioned with the plate placed on the processing table panel includes: Fix the plate placed on the processing table panel to the processing table panel; Control the positioning member of the positioning device to pass through the processing table panel and penetrate into the limiting hole of the plate to limit the plate.

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