Positioning device and machining equipment

By designing the positioning devices of the slidable first and second positioning components and clamping components, the problems of low efficiency and accuracy of the traditional positioning devices are solved, and efficient and precise positioning of the high-density PCB board is achieved.

CN119730033APending Publication Date: 2025-03-28HANS CNC SCI & TECH
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Patent Information

Application Number
CN202411793744.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The positioning efficiency and accuracy of traditional positioning devices are low, making it difficult to meet the production needs of high-density PCB boards.

Method used

A positioning device including a first and a second positioning assembly, a clamping assembly and a work table is designed. The first positioning member and the second positioning member can slide in the third direction, match the positioning hole of the circuit board, and accurately adjust the positioning member through the cooperation of the sliding core and the connecting rod.

Benefits of technology

By adjusting the distance between the positioners without disassembly and installation, saving time and improving positioning efficiency; by accurately adjusting the coordination between the positioners and the holes, improving positioning accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a positioning device and processing equipment, the positioning device is used for positioning a circuit board, and the positioning device comprises a workbench used for processing and fixing the circuit board; the first clamping assembly is arranged in the first direction of the workbench; the second clamping assembly is arranged in the second direction of the workbench. The first positioning assembly comprises a first positioning piece which can move relative to the mounting base in the first direction; the second positioning assembly is arranged on the workbench and comprises a second positioning piece; wherein the first clamping assembly and the second clamping assembly are used for clamping the board edge of the circuit board, and the first positioning piece and the second positioning piece can stretch out in the third direction and are matched with a first positioning hole and a second positioning hole of the circuit board respectively for positioning; the first direction, the second direction and the third direction are perpendicular to one another.
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Description

Technical Field

[0001] The present application relates to the field of automation technology, and in particular to a positioning device and processing equipment comprising the positioning device. Background Art

[0002] Printed circuit boards are the carriers of electronic products. With the increasing demand for computer, communication and consumer electronic products, the demand for multi-layer high-density PCB (Printed Circuit Board) boards has also increased dramatically. In the production process of PCB boards, drilling is a very critical process. Before drilling holes in the PCB board, the PCB board needs to be positioned and fixed by a positioning device. However, for traditional positioning devices, there are usually defects of low positioning efficiency and accuracy. Summary of the invention

[0003] A technical problem solved by the present application is how to improve the positioning efficiency and accuracy of the positioning device.

[0004] A positioning device for positioning a circuit board, the positioning device comprising:

[0005] Workbench, used for processing and fixing circuit boards;

[0006] A first clamping assembly is arranged along a first direction of the workbench;

[0007] A second clamping assembly is arranged along a second direction of the workbench;

[0008] A mounting seat and a first positioning assembly, wherein the first positioning assembly includes a first positioning member movable relative to the mounting seat along a first direction;

[0009] A second positioning assembly, disposed on the workbench and comprising a second positioning member;

[0010] Among them, the first clamping assembly and the second clamping assembly are used to clamp the edge of the circuit board, and the first positioning member and the second positioning member can both extend along the third direction and respectively cooperate with the first positioning hole and the second positioning hole of the circuit board for positioning; the first direction, the second direction, and the third direction are perpendicular to each other.

[0011] In one embodiment, the first positioning assembly further includes a first positioning slider and a base slider, the base slider is slidably connected to the workbench along the first direction, the first positioning slider is slidably connected to the base slider along a third direction that is perpendicular to both the first direction and the second direction, and the first positioning member is disposed on the first positioning slider.

[0012] In one embodiment, the first positioning assembly also includes a first sliding core that slides with the first positioning slider along the third direction, and the first positioning member includes a first base and a plurality of first positioning portions that are connected to each other, the first base is fixedly connected to the first positioning slider, and the plurality of first positioning portions are arranged at intervals along the circumference of the first base; when the first slide passes through the first base and extends into the space enclosed by the plurality of first positioning portions, the first positioning portion swings along the radial direction of the first base away from the central axis of the first base.

[0013] In one embodiment, the second positioning assembly further includes a second positioning slide block, the second positioning slide block is slidably connected to the workbench along a third direction that is perpendicular to both the first direction and the second direction, and the second positioning member is disposed on the second positioning slide block.

[0014] In one embodiment, the second positioning assembly also includes a second sliding core that slides with the second positioning slider along the third direction, the second positioning member includes a second base and a plurality of second positioning portions that are connected to each other, the second base is fixedly connected to the second positioning slider, and the plurality of second positioning portions are arranged at intervals along the circumference of the second base; when the second slide passes through the second base and extends into the space enclosed by the plurality of second positioning portions, the second positioning portion swings along the radial direction of the second base away from the central axis of the second base.

[0015] In one embodiment, the first clamping assembly includes a first clamping member, which includes a first clamping head and a first clamping rod connected to each other, the cross-sectional size of the first clamping head is larger than the cross-sectional size of the first clamping rod, the first clamping rod is used to abut against the circuit board along the first direction, and the first clamping head is used to abut against the circuit board along a third direction that is perpendicular to both the first direction and the second direction.

[0016] In one embodiment, the workbench is provided with a first abutment groove extending along a first direction, the first clamping assembly also includes a first abutment slider connected to the workbench along the first direction, and the first clamping rod is slidably connected to the first abutment block along the third direction and slidably cooperates with the first abutment groove.

[0017] In one embodiment, the second clamping member includes a second clamping head and a second clamping rod connected to each other, the cross-sectional size of the second clamping head is larger than the cross-sectional size of the second clamping rod, the second clamping rod is used to abut against the circuit board along the second direction, and the second clamping head is used to abut against the circuit board along a third direction that is perpendicular to both the first direction and the second direction.

[0018] In one embodiment, the workbench is also provided with a second abutment groove extending along the second direction, the second clamping assembly includes a second clamping piece, the second clamping assembly also includes a second abutment slider connected to the workbench along the second direction, and the second clamping rod is slidably connected to the second abutment block along the third direction and slidably cooperates with the second abutment groove.

[0019] In one of the embodiments, a third clamping assembly is further included, wherein the third clamping assembly includes a third clamping member, and the third clamping member and the first clamping member are used to abut against the circuit board at two opposite sides of the circuit board in the first direction, respectively.

[0020] In one embodiment, the third clamping member includes a third clamping head and a third clamping rod which are connected to each other, the cross-sectional size of the third clamping head is larger than the cross-sectional size of the third clamping rod, the third clamping rod is slidably connected to the workbench along a third direction which is perpendicular to both the first direction and the second direction, the third clamping rod is used to abut against the circuit board along the first direction, and the third clamping head is used to abut against the circuit board along the third direction.

[0021] In one embodiment, there are multiple third clamping assemblies, and the multiple third clamping assemblies are spaced apart along the second direction.

[0022] In one embodiment, there are multiple fixing and clamping assemblies, and the multiple fixing and clamping assemblies are located on opposite sides of the second positioning assembly along the second direction.

[0023] In one embodiment, the first positioning member and the second positioning member are arranged in a straight line and spaced apart from each other along the first direction.

[0024] In one embodiment, there are multiple first clamping assemblies, and the multiple first clamping assemblies are spaced apart along the second direction, and the first positioning assembly is located between two adjacent first clamping assemblies.

[0025] In one of the embodiments, it further comprises a fixing clamping member fixedly connected to the workbench, wherein the fixing clamping member and the first clamping member are used to abut against the circuit board at two opposite sides of the circuit board in the first direction, respectively.

[0026] A processing equipment comprises a crossbeam, a base, a plurality of processing spindles and a positioning device as described in any of the above items, wherein the plurality of processing spindles are arranged on the crossbeam at intervals, and the positioning device corresponds to the number of the processing spindles and is arranged on the base. A technical effect of an embodiment of the present application is: in view of the fact that the first positioning member can slide along the first direction, the spacing between the first positioning member and the second positioning member can be effectively adjusted without disassembling and installing the first positioning member and the second positioning member, thereby saving disassembly and installation time, and ultimately improving the positioning efficiency of the positioning device. At the same time, through the movement of the first positioning member, the spacing between the first positioning member and the second positioning member can be accurately adjusted, so that the first positioning member accurately cooperates with the first positioning hole, and the second positioning member accurately cooperates with the second positioning hole, ultimately improving the positioning accuracy of the positioning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the three-dimensional structure of a positioning device provided in an embodiment.

[0028] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the positioning device shown in another viewing angle.

[0029] Figure 3 for Figure 1 A schematic diagram of the top view of the positioning device is shown.

[0030] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure of the first positioning component in the positioning device shown.

[0031] Figure 5 for Figure 4 The three-dimensional structural schematic diagram of the first positioning component is shown in another viewing angle.

[0032] Figure 6 for Figure 4 A partial three-dimensional cross-sectional structural schematic diagram of the first positioning component is shown.

[0033] Figure 7 for Figure 4 A schematic diagram of the partial three-dimensional structure of the first positioning component is shown.

[0034] Figure 8 for Figure 1 A schematic diagram of the three-dimensional structure of the second positioning component in the positioning device shown.

[0035] Fig. 9 for Figure 8 A schematic three-dimensional cross-sectional structure diagram of the second positioning component is shown.

[0036] Fig.10 for Figure 1A schematic three-dimensional structural diagram of the first clamping assembly in the positioning device is shown.

[0037] Fig.11 for Figure 1 A schematic three-dimensional structural diagram of the second clamping assembly in the positioning device is shown.

[0038] Fig.12 for Figure 1 A schematic diagram of the three-dimensional structure of the fixed clamping assembly in the positioning device is shown.

[0039] Fig.13 for Figure 1 A schematic three-dimensional structural diagram of the third clamping assembly in the positioning device is shown.

[0040] Fig.14 for Fig.13 A schematic three-dimensional cross-sectional structural diagram of the third clamping assembly is shown.

[0041] Figure 1: Positioning device 10, first positioning assembly 100, first positioning member 110, first base 111, first positioning portion 112, first positioning slider 120, base slider 130, first sliding core 140, first positioning push cylinder 150, base cylinder 160, first positioning core cylinder 170, first positioning connecting rod 180, second positioning assembly 200, second positioning member 210, second base 211, second positioning portion 212, second positioning slider 220, second sliding core 230, second positioning push cylinder 240, second positioning core cylinder 250, second positioning connecting rod 260, workbench 300, bearing surface 310, mounting surface 320, first abutting slide groove 330, first Two abutment slides 340, positioning slides 350, a first clamping assembly 400, a first clamping piece 410, a first clamping head 411, a first clamping rod 412, a first abutment slider 420, a first driving cylinder 430, a first abutment cylinder 440, a first abutment connecting rod 450, a second clamping assembly 500, a second clamping piece 510, a second clamping head 511, a second clamping rod 512, a second abutment slider 520, a second driving cylinder 530, a second abutment cylinder 540, a fixed clamping assembly 600, a fixed clamping piece 610, a third clamping assembly 700, a third clamping piece 710, a third clamping head 711, a third clamping rod 712, a third abutment cylinder 720, and a third abutment connecting rod 730. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0043] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0044] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0046] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0047] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0048] See also Figure 1 , Figure 2 and Figure 3 In one embodiment of the present application, a positioning device 10 is provided for positioning and clamping a circuit board, so that a drilling device can be used to drill holes in the circuit board on the positioning device 10. A first positioning hole and a second positioning hole are provided on the circuit board, and the first positioning hole and the second positioning hole are spaced a certain distance apart on the circuit board. The positioning device 10 includes a first positioning component 100, a second positioning component 200, a workbench 300, a first clamping component 400, a second clamping component 500, and a fixed clamping component 600. The first positioning component 100, the second positioning component 200, the first clamping component 400, the second clamping component 500, and the fixed clamping component 600 are all arranged on the workbench 300.

[0049] See also Figure 1 , Figure 2 and Figure 3In some embodiments, the workbench 300 may be a roughly rectangular plate-like structure, and the workbench 300 has a bearing surface 310 and a mounting surface 320, and the bearing surface 310 and the mounting surface 320 are two surfaces facing oppositely in the thickness direction of the workbench 300. The circuit board is placed on the bearing surface 310. With the first direction, the second direction and the third direction perpendicular to each other as reference, for example, the first direction may be the length direction of the workbench 300, the second direction may be the width direction of the workbench 300, the third direction may be the thickness direction of the workbench 300, the first direction may be the X-axis direction in the spatial rectangular coordinate system, the second direction may be the Y-axis direction in the spatial rectangular coordinate system, and the third direction may be the Z-axis direction in the spatial rectangular coordinate system. The workbench 300 is provided with a first abutting groove 330, a second abutting groove 340 and a positioning groove 350. The first abutting groove 330, the second abutting groove 340 and the positioning groove 350 penetrate the entire workbench 300 along the thickness direction, so the first abutting groove 330, the second abutting groove 340 and the positioning groove 350 have openings on the bearing surface 310 and the installation surface 320.

[0050] See also Figure 1 , Figure 2 and Figure 3 The first abutting chute 330 and the positioning chute 350 extend a certain length along the first direction. The number of the first abutting chute 330 and the first clamping assembly 400 is equal and corresponds one to one. The number of the first abutting chute 330 and the first clamping assembly 400 can be multiple, and the multiple first abutting chute 330 is arranged at intervals along the second direction. For example, the number of the first abutting chute 330 and the first clamping assembly 400 can be two respectively. The number of the positioning chute 350 and the first positioning assembly 100 is equal and corresponds one to one. For example, the number of the positioning chute 350 and the first positioning assembly 100 can be one. The positioning chute 350 and the first abutting chute 330 are arranged at intervals along the second direction. For example, the positioning chute 350 can be located between two adjacent first abutting chute 330. The first abutting chute 330 and the positioning chute 350 are arranged close to one side of the workbench 300 in the first direction.

[0051] There are multiple second abutment grooves 340, which are equal to and correspond to the second clamping assemblies 500 in number, and the second abutment grooves 340 extend along a certain length, wherein a portion of the second abutment grooves 340 can be arranged close to one side of the workbench 300 in the second direction, and another portion of the second abutment grooves 340 can be arranged close to the other side of the workbench 300 in the second direction.

[0052] See also Figure 4 , Figure 5 , Figure 6 and Figure 7In some embodiments, the first positioning assembly 100 includes a first positioning member 110, a first positioning slider 120, a base slider 130, a first positioning push cylinder 150 and a first driving cylinder 430. The base slider 130, the first positioning push cylinder 150 and the first driving cylinder 430 are all located on the side where the mounting surface 320 is located. The first positioning slider 120 can be partially accommodated in the positioning slide groove 350, and the first positioning member 110 can slide in the positioning slide groove 350. A mounting seat is provided on the workbench 300, the base slider 130 is slidably connected to the mounting seat along the first direction, the cylinder barrel of the first driving cylinder 430 can be fixedly connected to the workbench 300, and the piston rod of the first driving cylinder 430 can extend along the first direction and be connected to the base slider 130. When the piston rod of the first driving cylinder 430 is extended and retracted in the first direction, the first driving cylinder 430 can drive the base slider 130 to reciprocate in the first direction. The first positioning slider 120 is connected to the base slider 130 in a sliding manner along the third direction, the cylinder of the first positioning push cylinder 150 is fixedly connected to the base slider 130, and the piston rod of the first positioning push cylinder 150 can extend along the third direction and be connected to the first positioning slider 120. When the piston rod of the first positioning push cylinder 150 is extended and retracted in the third direction, the first positioning push cylinder 150 can drive the first positioning slider 120 to reciprocate in the third direction. The first positioning member 110 can be fixedly arranged on the first positioning slider 120. Since the base slider 130 slides relative to the workbench 300 along the first direction, and the first positioning slider 120 slides relative to the base slider 130 along the third direction, the first positioning member 110 can slide relative to the workbench 300 in the first direction and the third direction, that is, the first positioning member 110 has two sliding degrees of freedom in the first direction and the third direction.

[0053] By sliding the first positioning member 110 along the first direction, the first positioning member 110 can be moved to the position directly below the first positioning hole on the circuit board, which can be generally understood as the first positioning member 110 and the first positioning hole being aligned with each other. By sliding the first positioning member 110 along the third direction, the first positioning member 110 can be extended into the first positioning hole through the positioning slide 350, so that the first positioning member 110 cooperates with the first positioning hole to position the circuit board. When the circuit board needs to be unloaded, the first positioning member 110 can be slid along the third direction to completely withdraw from the first positioning hole to avoid the first positioning member 110 interfering with the circuit board. Of course, the first positioning push cylinder 150 and the first drive cylinder 430 can also be replaced by drivers such as motors and hydraulic cylinders.

[0054] See also Figure 4 , Figure 5 , Figure 6 and Figure 7In some embodiments, the first positioning assembly 100 may further include a first sliding core 140, a first positioning core cylinder 170, and a first positioning connecting rod 180. The cylinder barrel of the first positioning core cylinder 170 may be fixedly connected to the first positioning slider 120, the piston rod of the first positioning core cylinder 170 may extend along the second direction, the first positioning connecting rod 180 may be bent, so that the first positioning connecting rod 180 is roughly V-shaped, one end of the first positioning connecting rod 180 is connected to the piston rod of the first positioning core cylinder 170, and the other end of the first positioning connecting rod 180 is connected to the first sliding core 140. The first sliding core 140 is slidably matched with the first positioning slider 120 along the third direction, and the first sliding core 140 may be located below the first positioning member 110. When the piston rod of the first positioning core cylinder 170 is extended and retracted along the second direction, the first sliding core 140 may move closer to or away from the first positioning member 110 along the third direction through the transmission action of the first positioning connecting rod 180. Therefore, through the transmission effect of the first positioning link 180, the linear motion of the first positioning core cylinder 170 in the second direction can be converted into the linear motion of the first sliding core 140 in the third direction.

[0055] See also Figure 4 , Figure 5 , Figure 6 and Figure 7 The first positioning member 110 includes a first base 111 and a plurality of first positioning portions 112. The first base 111 is a hollow structure, so that the first sliding core 140 can be inserted into the first base 111. The first base 111 can be fixedly connected to the first positioning slider 120. One end of the first positioning portion 112 is fixedly connected to the first base 111 and the other end is a free end. The plurality of first positioning portions 112 are arranged at intervals along the circumference of the first base 111, so that there is a gap between any two adjacent first positioning portions 112. All the first positioning portions 112 can form a columnar structure. When the first slide passes through the first base 111 and extends into the space surrounded by the plurality of first positioning portions 112, the first positioning portion 112 swings away from the central axis of the first base 111 along the radial direction of the first base 111, thereby increasing the outer diameter of the columnar structure surrounded by all the first positioning portions 112.

[0056] During the cooperation between the first positioning member 110 and the first positioning hole, the first positioning slider 120 can drive the first positioning member 110 to move upward along the third direction, so that the first positioning portion 112 is inserted into the first positioning hole. In view of the fact that the multiple first positioning portions 112 are arranged at intervals, two adjacent first positioning portions 112 can swing at a certain angle relative to the first base 111. Even if there is a certain deviation in the alignment between the columnar structure surrounded by the first positioning portion 112 and the first positioning hole, the columnar structure can be inserted into the first positioning hole through the swing of the first positioning portion 112, which can reduce the debugging time of the first positioning member 110, thereby improving the positioning efficiency of the entire positioning device 10. The outer diameter of the columnar structure surrounded by the first positioning portion 112 in the natural state can be smaller than the aperture of the first positioning hole, thereby reducing the friction resistance between the first positioning portion 112 and the inner wall surface of the first positioning hole, thereby reducing the time for the first positioning member 110 to be inserted into the first positioning hole, and also improving the positioning efficiency of the positioning device 10. After the columnar structure surrounded by the first positioning portion 112 is inserted into the first positioning hole, the first sliding core 140 can move upward along the third direction, so that the first sliding core 140 is inserted into the columnar structure surrounded by the first positioning portion 112 through the first base 111, so that the first sliding core 140 causes the columnar structure to expand outward, that is, the outer diameter of the columnar structure is increased, so that there is a reasonable abutment force between the columnar structure and the inner wall surface of the first positioning hole, thereby avoiding shaking of the circuit board relative to the columnar structure, and ultimately improving the positioning accuracy of the entire positioning device 10.

[0057] When it is necessary to release the cooperation between the first positioning member 110 and the first positioning hole, the first sliding core 140 can be first moved downward along the third direction to withdraw from the columnar structure surrounded by the first positioning portion 112. At this time, since the columnar structure lacks the outward expansion effect of the first sliding core 140, the first positioning portion 112 will swing to a natural state relative to the first base 111, so that the columnar structure returns to a natural state with an outer diameter smaller than the aperture of the first positioning hole. Then, the first positioning slider 120 drives the first positioning member 110 to move downward until the columnar structure is completely separated from the first positioning hole.

[0058] See also Figure 8 and Fig. 9In some embodiments, the second positioning assembly 200 includes a second positioning member 210, a second positioning slider 220, and a second positioning push cylinder 240. The second positioning push cylinder 240 is located on the side where the mounting surface 320 of the workbench 300 is located, and the second positioning slider 220 can be partially inserted into the hole structure of the workbench 300. The second positioning slider 220 is slidably connected to the workbench 300 along the third direction, the cylinder barrel of the second positioning push cylinder 240 can be fixed on the workbench 300, and the piston rod of the second positioning push cylinder 240 can extend along the third direction and be connected to the second positioning slider 220. When the piston rod of the second positioning push cylinder 240 is extended and retracted in the third direction, the second positioning push cylinder 240 can drive the second positioning slider 220 to reciprocate in the third direction. The second positioning member 210 can be fixedly arranged on the second positioning slider 220. Since the second positioning slider 220 slides along the third direction relative to the workbench 300, the second positioning member 210 can slide along the third direction relative to the workbench 300, that is, the second positioning member 210 has a sliding degree of freedom in the third direction, so that the second positioning member 210 has one less sliding degree of freedom relative to the first positioning member 110.

[0059] When the second positioning member 210 is located directly below the second positioning hole, that is, the second positioning member 210 and the second positioning hole are aligned with each other, the second positioning member 210 is driven to slide upward along the third direction by the second positioning slider 220, so that the second positioning member 210 can pass through the workbench 300 and extend into the second positioning hole, so that the second positioning member 210 cooperates with the second positioning hole to position the circuit board. When the circuit board needs to be unloaded, the second positioning member 210 can be slid along the third direction to completely withdraw from the second positioning hole to avoid the second positioning member 210 interfering with the circuit board. Of course, the second positioning push cylinder 240 and the second drive cylinder 530 can also be replaced by a driver such as a motor and a hydraulic cylinder.

[0060] See also Figure 8 and Fig. 9In some embodiments, the second positioning assembly 200 may further include a second sliding core 230, a second positioning core cylinder 250, and a second positioning connecting rod 260. The cylinder barrel of the second positioning core cylinder 250 may be fixedly connected to the second positioning slider 220, the piston rod of the second positioning core cylinder 250 may extend along the second direction, the second positioning connecting rod 260 may be bent, so that the second positioning connecting rod 260 is roughly V-shaped, one end of the second positioning connecting rod 260 is connected to the piston rod of the second positioning core cylinder 250, and the other end of the second positioning connecting rod 260 is connected to the second sliding core 230. The second sliding core 230 is slidably matched with the second positioning slider 220 along the third direction, and the second sliding core 230 may be located below the second positioning member 210. When the piston rod of the second positioning core cylinder 250 is extended and retracted along the second direction, the second sliding core 230 may move closer to or away from the second positioning member 210 along the third direction through the transmission action of the second positioning connecting rod 260. Therefore, through the transmission effect of the second positioning link 260, the linear motion of the second positioning core cylinder 250 in the second direction can be converted into the linear motion of the second sliding core 230 in the third direction.

[0061] See also Figure 8 and Fig. 9 The second positioning member 210 includes a second base 211 and a plurality of second positioning portions 212. The second positioning member 210 has a similar structure to the first positioning member 110. The second base 211 is a hollow structure, so that the second sliding core 230 can be inserted into the second base 211. The second base 211 can be fixedly connected to the second positioning slider 220. One end of the second positioning portion 212 is fixedly connected to the second base 211 and the other end is a free end. The plurality of second positioning portions 212 are arranged at intervals along the circumference of the second base 211, so that there is a gap between any two adjacent second positioning portions 212. All the second positioning portions 212 can form a columnar structure. When the second sliding core 230 passes through the second base 211 and extends into the space surrounded by the plurality of second positioning portions 212, the second positioning portion 212 swings away from the central axis of the second base 211 along the radial direction of the second base 211, thereby increasing the outer diameter of the columnar structure surrounded by all the second positioning portions 212.

[0062] During the cooperation between the second positioning member 210 and the second positioning hole, the second positioning slider 220 can drive the second positioning member 210 to move upward along the third direction, so that the second positioning portion 212 is inserted into the second positioning hole. In view of the fact that the plurality of second positioning portions 212 are arranged at intervals, two adjacent second positioning portions 212 can swing at a certain angle relative to the first base 111. Even if there is a certain deviation in the alignment between the columnar structure surrounded by the second positioning portion 212 and the second positioning hole, the columnar structure can be inserted into the second positioning hole through the swing of the second positioning portion 212, which can reduce the debugging time of the second positioning member 210, thereby improving the positioning efficiency of the entire positioning device 10. The outer diameter of the columnar structure surrounded by the second positioning portion 212 in the natural state can be smaller than the aperture of the second positioning hole, thereby reducing the friction resistance between the second positioning portion 212 and the inner wall surface of the second positioning hole, thereby reducing the time for the second positioning member 210 to be inserted into the second positioning hole, and also improving the positioning efficiency of the positioning device 10. After the columnar structure surrounded by the second positioning portion 212 is inserted into the second positioning hole, the second sliding core 230 can move upward along the third direction, so that the second sliding core 230 is inserted into the columnar structure surrounded by the second positioning portion 212 through the second base 211, so that the second sliding core 230 has the effect of expanding the columnar structure outward, that is, the outer diameter of the columnar structure is increased, so that there is a reasonable abutment force between the columnar structure and the inner wall surface of the second positioning hole, thereby avoiding the shaking of the circuit board relative to the columnar structure, and finally improving the positioning accuracy of the entire positioning device 10.

[0063] When it is necessary to release the cooperation between the second positioning member 210 and the second positioning hole, the second sliding core 230 can be first moved downward along the third direction so that the second sliding core 230 withdraws from the columnar structure surrounded by the second positioning portion 212. At this time, since the columnar structure lacks the outward expansion effect of the second sliding core 230, the second positioning portion 212 will swing to a natural state relative to the first base 111, so that the columnar structure returns to a natural state with an outer diameter smaller than the aperture of the second positioning hole. Then, the second positioning slider 220 drives the second positioning member 210 to move downward until the columnar structure completely detaches from the second positioning hole.

[0064] See also Fig.10In some embodiments, the first clamping assembly 400 includes a first clamping member 410, a first abutting slider 420, a first driving cylinder 430, a first abutting cylinder 440, and a first abutting connecting rod 450. The first driving cylinder 430, the first abutting cylinder 440, and the first abutting connecting rod 450 are all located on the side where the mounting surface 320 of the workbench 300 is located, and the first abutting slider 420 can be partially accommodated in the first abutting slide groove 330. The first abutting slider 420 is connected to the workbench 300 along the first direction, the cylinder barrel of the first driving cylinder 430 can be fixed on the workbench 300, the piston rod of the first driving cylinder 430 extends along the first direction and is connected to the first abutting slider 420, and when the piston rod of the first driving cylinder 430 is extended and retracted in the first direction, the first abutting slider 420 can be driven to slide relative to the workbench 300 along the first direction. The first clamping member 410 includes a first clamping head 411 and a first clamping rod 412. The first clamping head 411 and the first clamping rod 412 are connected to each other and can be coaxially arranged. The cross-sectional dimension of the first clamping head 411 is larger than the cross-sectional dimension of the first clamping rod 412, so that the first clamping member 410 is substantially mushroom-shaped. The first clamping rod 412 slides with the first abutting groove 330 along the first direction. When the first abutting slider 420 slides relative to the workbench 300 along the first direction, the first abutting slider 420 drives the first clamping member 410 to slide in the first abutting groove 330 along the first direction. The first clamping rod 412 can be slidably connected to the first abutting slider 420 along the third direction. Given that the first abutting slider 420 is connected to the workbench 300 along the first direction and the first clamping rod 412 can be slidably connected to the first abutting slider 420 along the third direction, the entire first clamping member 410 can have two degrees of sliding freedom in the first direction and the third direction relative to the workbench 300.

[0065] The cylinder barrel of the first abutting cylinder 440 can be fixed on the first abutting slider 420, and the piston rod of the first abutting cylinder 440 can extend in the first direction. The first abutting connecting rod 450 can be bent, so that the first abutting connecting rod 450 is roughly V-shaped, one end of the first abutting connecting rod 450 is connected to the piston rod of the first abutting cylinder 440, and the other end of the first abutting connecting rod 450 is connected to the first clamping rod 412. When the piston rod of the first abutting cylinder 440 is extended and retracted in the first direction, the first clamping member 410 can slide relative to the first abutting slider 420 in the third direction through the transmission effect of the first abutting connecting rod 450. Therefore, through the transmission effect of the first abutting connecting rod 450, the linear motion of the first abutting cylinder 440 in the first direction can be converted into the linear motion of the first clamping rod 412 in the third direction.

[0066] The first clamping rod 412 is used to abut against the circuit board along the first direction, and the first clamping head 411 is used to abut against the circuit board along the third direction. For example, when the first abutting slider 420 drives the first clamping rod 412 to slide in the first abutting slot 330, when the first clamping rod 412 abuts against one side of the circuit board in the first direction, the first clamping rod 412 can push the circuit board to slide in the first direction to achieve positioning. After the first clamping rod 412 pushes the circuit board to move to the specified position, the first abutting cylinder 440 can drive the first clamping member 410 to move downward along the third direction through the first abutting connecting rod 450, so that the first clamping head 411 applies abutting force to the circuit board downward along the third direction, so that the circuit board is clamped between the first clamping head 411 and the workbench 300, thereby achieving the fixing and clamping of the circuit board and preventing the circuit board from shifting relative to the specified position.

[0067] See also Fig.11 In some embodiments, the second clamping assembly 500 includes a second clamping member 510, a second abutting slider 520, a second driving cylinder 530, and a second abutting cylinder 540. The second driving cylinder 530 and the second abutting cylinder 540 are both located on the side where the mounting surface 320 of the workbench 300 is located, and the second abutting slider 520 can be partially accommodated in the second abutting slide groove 340. The second abutting slider 520 is connected to the workbench 300 along the second direction, the cylinder barrel of the second driving cylinder 530 can be fixed on the workbench 300, the piston rod of the second driving cylinder 530 extends along the second direction and is connected to the second abutting slider 520, and when the piston rod of the second driving cylinder 530 is extended and retracted in the second direction, the second abutting slider 520 can be driven to slide relative to the workbench 300 along the second direction. The second clamping member 510 includes a second clamping head 511 and a second clamping rod 512. The second clamping head 511 and the second clamping rod 512 are connected to each other and can be coaxially arranged. The cross-sectional dimension of the second clamping head 511 is larger than the cross-sectional dimension of the second clamping rod 512, so that the second clamping member 510 is substantially mushroom-shaped. The second clamping rod 512 is slidably matched with the second abutting slide 340 along the first direction. When the second abutting slider 520 slides relative to the workbench 300 along the second direction, the second abutting slider 520 drives the second clamping member 510 to slide in the second abutting slide 340 along the second direction. The second clamping rod 512 can be slidably connected with the second abutting slider 520 along the third direction. Since the second abutting slider 520 is connected to the workbench 300 along the second direction, and the second clamping rod 512 can be slidably connected with the second abutting slider 520 along the third direction, the entire second clamping member 510 can have two sliding degrees of freedom in the first direction and the third direction relative to the workbench 300.

[0068] The cylinder barrel of the second abutting cylinder 540 can be fixed on the second abutting slider 520, and the piston rod of the second abutting cylinder 540 can extend along the third direction. The second clamping rod 512 can be connected to the piston rod of the second abutting cylinder 540. When the piston rod of the second abutting cylinder 540 is extended and retracted in the third direction, the second clamping rod 512 and the entire second clamping member 510 can be driven to slide back and forth relative to the second abutting slider 520 along the third direction.

[0069] The second clamping rod 512 is used to abut against the circuit board along the second direction, and the second clamping head 511 is used to abut against the circuit board along the third direction. For example, when the second abutting slider 520 drives the second clamping rod 512 to slide in the second abutting slot 340, when the second clamping rod 512 abuts against one side of the circuit board in the second direction, the second clamping rod 512 can push the circuit board to slide in the second direction to achieve positioning. After the second clamping rod 512 pushes the circuit board to move to the specified position, the second abutting cylinder 540 can drive the second clamping member 510 to move downward along the third direction, so that the second clamping head 511 applies abutting force to the circuit board downward along the third direction, so that the circuit board is clamped between the second clamping head 511 and the workbench 300, thereby achieving the fixing and clamping of the circuit board and preventing the circuit board from shifting relative to the specified position.

[0070] In some embodiments, the number of the second clamping components 500 and the second abutting groove 340 can be four respectively, wherein two second clamping components 500 are arranged near one side of the workbench 300 in the second direction, and the other two second clamping components 500 are arranged near the other side of the workbench 300 in the second direction, so that both opposite sides of the circuit board in the second direction can abut against the second clamping components 500. In the process of positioning the circuit board in the second direction, the four second clamping components 500 can all start working to push the circuit board to reciprocate along the second direction, thereby adjusting and finally finding the position of the circuit board in the second direction, that is, realizing the positioning of the circuit board in the second direction.

[0071] See also Fig.12In some embodiments, the fixed clamping assembly 600 includes a fixed clamping member 610, which can be fixedly connected to the workbench 300, so that the fixed clamping member 610 protrudes a certain height relative to the bearing surface 310. Obviously, the fixed clamping member 610 cannot slide relative to the workbench 300, which can be understood as the fixed clamping member 610 has zero degree of freedom relative to the workbench 300. The first clamping assembly 400 is arranged near one side of the workbench 300 in the first direction, and the fixed clamping member 610 can be arranged near the other side of the workbench 300 in the first direction, so that the fixed clamping member 610 and the first clamping member 410 can respectively abut against the circuit board at opposite sides of the circuit board in the first direction. In the process of positioning the circuit board in the first direction, the first clamping member 410 can push the circuit board to move close to the fixed clamping member 610 along the first direction. When the circuit board abuts against the fixed clamping member 610, the position of the circuit board in the first direction is adjusted, so that the positioning of the circuit board in the first direction can be achieved.

[0072] See also Fig.13 and Fig.14 In some embodiments, the positioning device 10 may further include a third clamping assembly 700, which includes a third clamping member 710, a third abutting cylinder 720 and a third abutting connecting rod 730. The third clamping assembly 700 and the fixed clamping assembly 600 are respectively arranged close to the same side of the workbench 300 in the first direction, so that the third clamping member 710 and the first clamping member 410 can respectively abut the circuit board on opposite sides of the circuit board in the first direction. The third clamping member 710 includes a third clamping head 711 and a third clamping rod 712, which are connected to each other and can be coaxially arranged, and the cross-sectional size of the third clamping head 711 is larger than the cross-sectional size of the third clamping rod 712, thereby making the third clamping member 710 roughly mushroom-shaped. The third clamping rod 712 can be inserted into the workbench 300, so that the third clamping rod 712 is slidably connected to the workbench 300 along the third direction.

[0073] The cylinder barrel of the third abutting cylinder 720 can be fixed on the workbench 300, the piston rod of the third abutting cylinder 720 can extend in the first direction, the third abutting connecting rod 730 can be bent, so that the third abutting connecting rod 730 is roughly V-shaped, one end of the third abutting connecting rod 730 is connected to the piston rod of the third abutting cylinder 720, and the other end of the third abutting connecting rod 730 is connected to the third clamping rod 712. When the piston rod of the third abutting cylinder 720 is telescopic in the first direction, the third clamping rod 712 and the entire third clamping member 710 can be moved in the third direction through the transmission effect of the third abutting connecting rod 730. Therefore, through the transmission effect of the third abutting connecting rod 730, the linear motion of the third abutting cylinder 720 in the first direction can be converted into the linear motion of the third clamping member 710 in the third direction. Therefore, the third clamping member 710 has only one sliding degree of freedom along the third direction.

[0074] The third clamping rod 712 is used to abut against the circuit board along the first direction, and the third clamping head 711 is used to abut against the circuit board along the third direction. For example, after the fixed clamping member 610 and the first clamping member 410 position the circuit board along the first direction, the third clamping rod 712 can also abut against the circuit board along the first direction, thereby improving the stability and reliability of the positioning of the circuit board. After the circuit board is completely positioned in the first direction and the second direction, the third abutting cylinder 720 can drive the third clamping member 710 to move downward, so that the third clamping head 711 abuts against the circuit board along the third direction, that is, the circuit board is clamped between the third clamping head 711 and the workbench 300.

[0075] Since the two edges of the circuit board in the second direction are clamped between the second clamping head 511 and the workbench 300 along the third direction, one edge of the circuit board in the first direction is clamped between the first clamping head 411 and the workbench 300 along the third direction, and the other edge of the circuit board in the first direction is clamped between the third clamping head 711 and the workbench 300 along the third direction. Therefore, the edges of the circuit board in the first direction and the second direction are clamped, which can improve the positioning and clamping accuracy of the circuit board, and finally improve the positioning accuracy of the positioning device 10.

[0076] The operating principle of the positioning device 10 is described below:

[0077] In the first step, the circuit board is placed on the supporting surface 310, so that the first clamping member 410 moves along the first direction and abuts against the edge of the circuit board, and then the first clamping member 410 pushes the circuit board to move along the first direction close to the fixed clamping member 610. When the first clamping member 410 pushes the circuit board to abut against the fixed clamping member 610, the positioning of the circuit board in the first direction is adjusted.

[0078] In the second step, the multiple second clamping members 510 move along the second direction, and then the multiple second clamping members 510 abut against the edge of the circuit board. The second clamping members 510 push the circuit board to reciprocate in the second direction. When the second positioning member 210 is just located below the second positioning hole and aligned with the second positioning hole, the positioning of the circuit board in the second direction is adjusted.

[0079] In the third step, the first clamping member 410 , the second clamping member 510 and the third clamping member 710 move downward, and the first clamping head 411 , the second clamping head 511 and the third clamping head 711 abut against the circuit board along the third direction, so that the circuit board is fixed on the workbench 300 .

[0080] In the fourth step, the first positioning member 110 is moved along the first direction, and then the first positioning member 110 is moved to the bottom of the first positioning hole and aligned with the first positioning hole. Then the first positioning member 110 is moved upward and inserted into the first positioning hole, and the second positioning member 210 is moved upward and inserted into the second positioning hole. At this time, the circuit board is completely fixed and clamped on the workbench 300, and the circuit board can be drilled by the drilling equipment.

[0081] If a mode is adopted in which both the first positioning member 110 and the second positioning member 210 cannot slide along the first direction or the second direction, that is, the spacing between the first positioning member 110 and the second positioning member 210 cannot be adjusted. However, the spacing between the first positioning hole and the second positioning hole on circuit boards of different models is inconsistent. When the positioning device 10 is switched between circuit boards of different models, the first positioning member 110 and the second positioning member 210 must be disassembled, so as to re-change the spacing between the first positioning member 110 and the second positioning member 210 to adapt to the spacing between the first positioning hole and the second positioning hole on the circuit board after switching. However, the disassembly and installation of the first positioning member 110 and the second positioning member 210 are relatively complicated, thereby affecting the positioning efficiency of the positioning device 10. At the same time, it is also difficult to accurately adjust the spacing between the first positioning member 110 and the second positioning member 210, making it difficult for the first positioning member 110 and the second positioning member 210 to cooperate with the first positioning hole and the second positioning hole, thereby affecting the positioning accuracy of the positioning device 10.

[0082] As for the positioning device 10 in the above embodiment, the first positioning member 110 slides in the positioning groove along the first direction, and the first positioning member 110 and the second positioning member 210 do not need to be disassembled and installed, so that the spacing between the first positioning member 110 and the second positioning member 210 can be effectively adjusted, which can save the time of disassembly and installation, thereby improving the positioning efficiency of the positioning device 10. At the same time, through the movement of the first positioning member 110 in the positioning groove, the spacing between the first positioning member 110 and the second positioning member 210 can be accurately adjusted, so that the first positioning member 110 accurately matches the first positioning hole, and the second positioning member 210 accurately matches the second positioning hole, and finally improves the positioning accuracy of the positioning device 10.

[0083] In some embodiments, the number of the third clamping assemblies 700 is multiple, and the multiple third clamping assemblies 700 are arranged at intervals along the second direction, so as to improve the stability and reliability of the circuit board fixation, thereby improving the positioning accuracy of the positioning device 10. The number of the fixed clamping assemblies 600 is multiple, and the multiple fixed clamping assemblies 600 are located on opposite sides of the second positioning assembly 200 along the second direction, so as to improve the positioning accuracy of the circuit board in the first direction, thereby also improving the positioning accuracy of the positioning device 10. The first positioning member 110 and the second positioning member 210 are arranged at intervals along a straight line extending in the first direction, which can be simply understood as the first positioning member 110 and the second positioning member 210 are located on the same straight line extending in the first direction. The number of the first clamping assemblies 400 is multiple, and the multiple first clamping assemblies 400 are arranged at intervals along the second direction, and the first positioning assembly 100 is located between two adjacent first clamping assemblies 400. In this way, the positioning efficiency and positioning accuracy of the positioning device 10 can also be improved.

[0084] The present application also provides a processing equipment, which includes a crossbeam, a base, a plurality of processing spindles, and a plurality of the above-mentioned positioning devices 10, wherein the plurality of processing spindles are arranged on the crossbeam at intervals, and the positioning devices 10 correspond to the number of the processing spindles and are arranged on the base. In view of the improved positioning efficiency and accuracy of the positioning device 10, the working efficiency and processing accuracy of the entire processing equipment can be improved. The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A positioning device for positioning a circuit board, characterized in that: The positioning device comprises: Workbench, used for processing and fixing circuit boards; A first clamping assembly is arranged along a first direction of the workbench; A second clamping assembly is arranged along a second direction of the workbench; A mounting seat and a first positioning assembly, wherein the first positioning assembly includes a first positioning member movable relative to the mounting seat along a first direction; A second positioning assembly, disposed on the workbench and comprising a second positioning member; Among them, the first clamping assembly and the second clamping assembly are used to clamp the edge of the circuit board, and the first positioning member and the second positioning member can both extend along the third direction and respectively cooperate with the first positioning hole and the second positioning hole of the circuit board for positioning; the first direction, the second direction, and the third direction are perpendicular to each other.

2. The positioning device according to claim 1, characterized in that: The first positioning assembly also includes a first positioning slider and a base slider. The base slider is slidably connected to the mounting seat along the first direction, the first positioning slider is slidably connected to the base slider along the third direction, and the first positioning member is arranged on the first positioning slider.

3. The positioning device according to claim 2, characterized in that: The first positioning assembly also includes a first sliding core that slides with the first positioning slider along the third direction, the first positioning member includes a first base and a plurality of first positioning portions that are interconnected, the first base is fixedly connected to the first positioning slider, and the plurality of first positioning portions are spaced apart along the circumference of the first base; when the first slide passes through the first base and extends into the space enclosed by the plurality of first positioning portions, the first positioning portion swings radially away from the central axis of the first base.

4. The positioning device according to claim 1, characterized in that: The second positioning assembly also includes a second positioning slider, which is slidably connected to the workbench along a third direction that is perpendicular to both the first direction and the second direction, and the second positioning member is disposed on the second positioning slider.

5. The positioning device according to claim 4, characterized in that: The second positioning assembly also includes a second sliding core that slides with the second positioning slider along the third direction, the second positioning member includes a second base and a plurality of second positioning portions that are connected to each other, the second base is fixedly connected to the second positioning slider, and the plurality of second positioning portions are arranged at intervals along the circumference of the second base; when the second slide passes through the second base and extends into the space enclosed by the plurality of second positioning portions, the second positioning portion swings along the radial direction of the second base away from the central axis of the second base.

6. The positioning device according to claim 1, characterized in that: The first clamping assembly includes a first clamping member, which includes a first clamping head and a first clamping rod connected to each other, the cross-sectional size of the first clamping head is larger than the cross-sectional size of the first clamping rod, the first clamping rod is used to abut against the circuit board along the first direction, and the first clamping head is used to abut against the circuit board along the third direction.

7. The positioning device according to claim 6, characterized in that: The workbench is provided with a first abutment groove extending along a first direction, the first clamping assembly also includes a first abutment sliding block connected to the workbench along the first direction, and the first clamping rod is slidably connected to the first abutment block along the third direction and slidably cooperates with the first abutment groove.

8. The positioning device according to claim 1, characterized in that: The second clamping assembly includes a second clamping member, which includes a second clamping head and a second clamping rod connected to each other, the cross-sectional size of the second clamping head is larger than the cross-sectional size of the second clamping rod, the second clamping rod is used to abut against the circuit board along the second direction, and the second clamping head is used to abut against the circuit board along the third direction.

9. The positioning device according to claim 8, characterized in that: The workbench is also provided with a second abutment groove extending along the second direction, and the second clamping assembly also includes a second abutment slider connected to the workbench along the second direction, and the second clamping rod is slidably connected to the second abutment block along the third direction and slidably cooperates with the second abutment groove.

10. The positioning device according to claim 1, characterized in that: It also includes a third clamping assembly, which includes a third clamping piece. The third clamping piece and the first clamping piece are used to abut against the circuit board at two opposite sides of the circuit board in the first direction respectively.

11. The positioning device according to claim 10, characterized in that: The third clamping member includes a third clamping head and a third clamping rod that are connected to each other. The cross-sectional size of the third clamping head is larger than the cross-sectional size of the third clamping rod. The third clamping rod is slidably connected to the workbench along the third direction. The third clamping rod is used to abut against the circuit board along the first direction, and the third clamping head is used to abut against the circuit board along the third direction.

12. The positioning device according to claim 10, characterized in that: There are multiple third clamping assemblies, and the multiple third clamping assemblies are arranged at intervals along the second direction.

13. The positioning device according to claim 1, characterized in that: There are multiple fixing and clamping assemblies, and the multiple fixing and clamping assemblies are located on two opposite sides of the second positioning assembly along the second direction.

14. The positioning device according to claim 1, characterized in that: The first positioning member and the second positioning member are arranged in a straight line extending along the first direction and spaced apart from each other.

15. The positioning device according to claim 1, characterized in that: There are multiple first clamping assemblies, and the multiple first clamping assemblies are arranged at intervals along the second direction. The first positioning assembly is located between two adjacent first clamping assemblies.

16. The positioning device according to claim 1, characterized in that: It also includes a fixing clamping member fixedly connected to the workbench, and the fixing clamping member and the first clamping member are used to abut against the circuit board at two opposite sides of the circuit board in the first direction respectively.

17. A processing equipment, comprising a crossbeam, a base, a plurality of processing spindles and a plurality of positioning devices as described in any one of claims 1 to 16, wherein the plurality of processing spindles are arranged on the crossbeam at intervals, and the positioning devices are arranged on the base in a number corresponding to the number of the processing spindles.