Positioning device for automatic drilling of furniture panels

Abstract

The embodiment of the present disclosure provides a positioning device for automatic drilling of furniture plates, comprising: a base for providing a support base; a linear guide rail installed on the base; a sliding block slidingly installed on the linear guide rail; a drilling support fixed to the base and having a quick-change drill sleeve fixed to the top; a loading platform installed above the sliding block for placing furniture plates; a positioning block installed on the upper part of the loading platform for Y-direction positioning of the furniture plates; and a clamping block connected to the loading platform through a hexagonal bolt for X-direction positioning and clamping of the furniture plates; wherein the linear guide rail comprises a guide rail base and a guide rail, and the guide rail base is fixed to the upper surface of the base through bolts; wherein a lead screw and a motor are installed on the linear rail, and the lead screw is located at the center position of the guide rail base. Through the scheme of the embodiment of the present disclosure, mechanical deviation generated in the drilling process can be reduced.

Description

Technical Field

[0001] This application relates to the field of wood processing machinery technology, specifically to a positioning device for automatic drilling of furniture boards. Background Technology

[0002] The positioning device for automatic drilling of furniture boards is an automated equipment that uses a mechanical structure to precisely fix the position of the board so that the drill bit can automatically perform the drilling operation, improving production efficiency and accuracy. However, the device has mechanical deviation problems during the drilling process, such as vibration, positioning error or instability of the transmission system causing the drilling position to shift or the hole diameter to be inaccurate, thus affecting the quality of the final product. Summary of the Invention

[0003] In view of this, the present disclosure provides a positioning device for automatic drilling of furniture boards, which at least partially solves the problems existing in the prior art.

[0004] This application discloses a positioning device for automatic drilling of furniture panels, comprising:

[0005] The base serves to provide a supporting foundation;

[0006] A linear guide rail is mounted on the base;

[0007] The slider is slidably mounted on the linear guide rail;

[0008] A drilling bracket is fixed to the base, and a quick-change drill sleeve is fixed to the top;

[0009] A platform, installed above the slider, is used to place furniture boards;

[0010] A positioning block is installed on the upper part of the platform and is used to position the furniture board in the Y direction.

[0011] The clamping block is connected to the platform by hex bolts and is used for X-direction positioning and clamping of furniture boards;

[0012] The linear guide rail includes a guide rail base and a guide rail, wherein the guide rail base is fixed to the upper surface of the base by bolts;

[0013] The linear track is equipped with a lead screw and a motor. The lead screw is located at the center of the guide rail base and is used to precisely engage with the ball bearings of the slider to reduce friction.

[0014] Preferably, the lower surface of the base is provided with an anti-slip rubber pad to enhance friction with the workbench.

[0015] Preferably, the base has positioning pin holes, which are symmetrically distributed on the base and are used to fix the position of the linear guide rail by means of hexagonal bolts.

[0016] Preferably, the lead screw surface of the guide rail is coated with a lubricating coating to reduce ball friction and wear.

[0017] Preferably, the linear guide rail is mounted on the base via a second identical linear guide rail, and a second slider identical to the slider is slidably mounted on the second linear guide rail. The linear guide rail and the second slider are fixedly connected, and the second linear guide rail is arranged perpendicular to the linear guide rail.

[0018] Preferably, the drilling support consists of a left upright, a right upright, and a drilling plate. The left and right uprights are located on the upper sides of the base. One end of the drilling plate is connected to the left upright via a shoulder bolt, and the other end of the drilling plate can be placed above the right upright. The shoulder bolt can rotate around the central axis, and a quick-change drill sleeve is installed at the center of the drilling plate.

[0019] Preferably, the linear guide is driven by a motor, which is connected to the lead screw via a flexible coupling. The flexible coupling is made of a rubber and metal composite and is used to buffer drilling vibration.

[0020] Preferably, the slider is connected to the lead screw with bearings at both ends to assist the ball bearings in rolling stably.

[0021] This disclosure provides a positioning device for automatic drilling of furniture panels, comprising: a base for providing a support foundation; a linear guide rail mounted on the base; a slider slidably mounted on the linear guide rail; a drilling bracket fixed to the base, with a quick-change drill sleeve fixed to its top; a platform mounted above the slider for placing the furniture panel; a positioning stop mounted on the upper part of the platform for positioning the furniture panel in the Y direction; and a clamping block connected to the platform by hexagonal bolts for positioning and clamping the furniture panel in the X direction. The linear guide rail includes a guide rail base and a guide track, the guide rail base being fixed to the upper surface of the base by bolts. A lead screw and a motor are mounted on the linear track, the lead screw being located at the center of the guide rail base for precise engagement with the ball bearings of the slider to reduce friction. This disclosure addresses the issue of reducing mechanical deviations during the drilling process. Attached Figure Description

[0022] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0023] Figure 1 This is a perspective view of the appearance of this utility model;

[0024] Figure 2 This is a diagram of the linear guide rail of this utility model;

[0025] Figure 3 This is an exploded view of the present invention.

[0026] In the diagram: 1. Base; 2. Linear guide rail; 3. Slider; 4. Drilling bracket; 5. Positioning stop; 6. Clamping block; 21. Guide rail base; 22. Guide rail; 23. Lead screw; 24. Motor; 11. Anti-slip rubber pad; 25. Flexible coupling; 26. Positioning pin hole; 27. Fixing bolt; 29. ​​Lubricating coating; 31. Bearing; 41. Left upright; 42. Shoulder bolt; 43. Drill plate; 44. Quick-change drill sleeve; 45. Right upright; 51. Platform; 61. Furniture board. Detailed Implementation

[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0028] like Figures 1-3 As shown, a positioning device for automatic drilling of furniture boards according to this application includes a base 1, a linear guide rail 2, a slider 3, a drilling bracket 4, a platform 51, a positioning block 5, and a clamping block 6.

[0029] The base 1 is a structure used to provide the overall support foundation. It is installed at the bottom of the device and serves as a fixing point for all other components. It is usually made of high-strength steel or cast iron to ensure stability and resistance to deformation. For example, in technical implementation, the base 1 is fixed to the workbench by bolts and is designed with a reinforcing rib structure to distribute the dynamic load generated during drilling, thereby preventing displacement caused by vibration.

[0030] The linear guide 2 is mounted on the base 1 to achieve high-precision linear motion. Its components include a guide base 21 and a guide rail 22. The guide base 21 is fixed to the upper surface of the base 1 by bolts to ensure a firm connection. The linear guide 2 also includes a lead screw 23 and a motor 24. The lead screw 23 is located at the center of the guide base 21 and is used to precisely engage with the balls of the slider 3 to reduce friction. In terms of technical implementation, for example, a precision ball screw 23 system is adopted. The lead screw 23 is driven by a servo motor 24 and the motion accuracy is controlled by an encoder to achieve micron-level positioning, thereby supporting smooth linear displacement.

[0031] The slider 3 is slidably mounted on the linear guide 2 to carry and move the connected components. Its connection is achieved by engaging with the lead screw 23 through an internal ball bearing to achieve low-friction sliding. For example, in terms of technical implementation, the slider 3 is made of aluminum alloy to reduce weight and integrates a lubrication system, such as a grease groove or a sealed bearing, to maintain smooth operation over a long period of time and reduce deviations caused by wear.

[0032] The drilling bracket 4 is fixed to the base 1, and a quick-change drill sleeve 44 is fixed on the top to ensure geometric rigidity during the drilling process. Its structure includes a rigid bracket body, which is directly connected to the base 1 by welding or bolts. For example, in terms of technical implementation, the bracket is made of cast iron, and the quick-change drill sleeve 44 is designed to be detachable and adopts a conical locking mechanism to facilitate quick replacement of drill sleeves with different hole diameters. At the same time, by increasing the wall thickness and supporting ribs, the bending resistance is enhanced to ensure no shaking during drilling.

[0033] The platform 51 is installed above the slider 3 and is used to place the furniture board 61. Its connection is fixed to the top of the slider 3 by bolts or clips. For example, in terms of technical implementation, the platform 51 uses a flat aluminum plate or composite material surface and is provided with anti-slip texture or vacuum adsorption groove to stabilize the position of the board and prevent slippage during processing.

[0034] The positioning block 5 is installed on the upper part of the platform 51 and is used to position the furniture board 61 in the Y direction. Its structure is usually an adjustable vertical baffle, which is fixed to the edge of the platform 51 by bolts or slides. For example, in terms of technical implementation, the positioning block 5 is equipped with a scale and a fine adjustment screw, which allows the operator to set the position accurately according to the size of the board and fix it by a locking mechanism to achieve repeatable positioning accuracy.

[0035] The clamping block 6 is connected to the top platform 51 by hexagonal bolts and is used to position and clamp the furniture board 61 in the X direction. The connection is fastened with bolts, and the clamping block 6 itself is a movable structure. For example, in terms of technical implementation, the clamping block 6 includes a clamping arm and a rubber pad. The clamping force is applied by manually or pneumatically driving the hexagonal bolts to ensure that the board does not loosen in the X direction, while adapting to the fixing needs of boards of different thicknesses.

[0036] This feature addresses the technical challenge of reducing mechanical deviations during drilling through high-precision component integration and rigid structural design. Specifically, the lead screw 23 and ball bearings of the linear guide 2 achieve micron-level linear motion control, reducing friction and accumulated errors during movement. Simultaneously, the quick-change drill sleeve 44 of the drilling support 4 provides geometric stiffness, suppressing vibration and deformation during drilling. The positioning stop 5 and clamping block 6 work together to ensure precise positioning of the plate material in the X and Y directions, eliminating deviations caused by plate displacement. Furthermore, the stable support of the base 1 and the smooth sliding of the slider 3 together reduce overall system uncertainty, thereby achieving high repeatability during automatic drilling.

[0037] like Figure 1 As shown, in one embodiment, the lower surface of the base 1 of the positioning device for automatic drilling of furniture boards according to this application is provided with an anti-slip rubber pad 11. This pad is directly installed on the bottom surface of the base 1 to increase the frictional resistance between the device and the external worktable. The anti-slip rubber pad 11 is made of elastic rubber material, and its surface is designed with textures or grooves to enhance friction performance, thereby improving the overall stability of the device during operation. Specifically, the anti-slip rubber pad 11 covers the main area of ​​the lower surface of the base 1 to ensure uniform distribution of friction and avoid local stress concentration.

[0038] Specifically, the back of the pad is coated with a high-adhesion adhesive layer, which directly adheres to the bottom surface of the base 1; in the mechanical fixing method, the edge of the pad can be embedded in a slot or fixed by fasteners to achieve firm adhesion. The thickness and hardness of the anti-slip rubber pad 11 are selected according to the material of the workbench to optimize the coefficient of friction and cushioning effect.

[0039] For example, the anti-slip rubber pad 11 is adhered to the lower surface of the base 1 by hot melt adhesive and is pressed to ensure that there are no gaps at the interface; the pad material is nitrile rubber, which has a coefficient of friction of not less than 0.6, and can effectively adapt to different workbench surfaces to prevent the device from sliding.

[0040] like Figure 3 As shown, in one embodiment, the base 1 of a positioning device for automatic drilling of furniture panels according to this application is provided with a plurality of positioning pin holes 26. These positioning pin holes 26 are symmetrically distributed on the upper surface of the base 1 to ensure a uniform layout of fixing points, thereby providing a stable mounting base. Specifically, the positioning pin holes 26 are designed as through-hole structures to accommodate hexagonal bolts for precise fixing of the linear guide rail 2. This symmetrical distribution helps to balance the load on the base 1 and avoid local stress concentration.

[0041] Specifically, the locating pin hole 26 is connected to the base of the linear guide 2 via a hexagonal bolt, firmly fixing the linear guide 2 to the base 1. The connection involves the bolt passing through the locating pin hole 26 and screwing into the corresponding threaded hole of the linear guide 2, forming a rigid connection. This structure reduces vibration transmission during operation, thereby reducing positional deviation.

[0042] For example, by drilling symmetrically distributed positioning pin holes 26 on the base 1 and using hexagonal bolts to directly fasten the base of the linear guide 2 to these holes, the position of the linear guide 2 is fixed and the alignment accuracy is high.

[0043] like Figure 1 As shown, in one embodiment, a fixing bolt 27 is used to securely connect the guide rail base 21 to the base 1. The bolt is made of high-strength alloy steel to improve tensile strength and fatigue resistance, thereby maintaining structural integrity under long-term high-load conditions. The bolt is located at the interface between the guide rail base 21 and the base 1, and is tightened through a threaded connection, ensuring that it does not loosen or deform under dynamic loads during drilling.

[0044] Specifically, the fixing bolt 27 can be tightened using a torque wrench according to a preset design torque value, such as a specific torque range calculated based on the material's mechanical properties. This tightening method avoids overload or undertightening problems and optimizes the distribution of bolt preload.

[0045] like Figure 2 As shown, in one embodiment, the lead screw 23, as the core component of the linear guide 2, is located at the center of the guide base 21 and is used to achieve precise engagement with the balls of the slider 3. The surface of the lead screw 23 is specially treated and coated with a lubricating coating 29, which is directly attached to the outer surface of the lead screw 23 to form a continuous anti-friction layer. The installation position of the lubricating coating 29 covers the entire threaded area of ​​the lead screw 23, ensuring that the balls are always in contact with the coating during movement. The composition of the coating includes polymer-based materials or solid lubricants, which are fixed to the lead screw 23 substrate by chemical or physical means, thereby optimizing the friction interface.

[0046] Specifically, the surface of the lead screw 23 is coated with a lubricating coating 29. This coating can be achieved through a thermal spraying process, for example, by uniformly spraying and curing polytetrafluoroethylene powder onto the surface of the lead screw 23 to form a thin film with a thickness of 10-50 micrometers, ensuring a reduced coefficient of friction and durable coating adhesion during ball movement.

[0047] like Figure 3As shown, in one embodiment, the positioning device adds a second linear guide rail system 2 to achieve two-dimensional planar motion. Specifically, the second linear guide rail 2 is directly mounted on the base 1, and its structure is the same as the original linear guide rail 2, including components such as the guide rail base 21 and the guide rail 22. A second slider 3 is slidably mounted on the second linear guide rail 2, and its design is consistent with the original slider 3 to ensure low-friction motion. The original linear guide rail 2 is attached to the second slider 3 by a fixed connection, such as by bolts or welding, forming a rigid connection. The arrangement direction of the second linear guide rail 2 is perpendicular to the original linear guide rail 2, thereby defining two orthogonal motion axes on the plane of the base 1. This configuration allows the stage 51 to drive the entire original linear guide rail system 2 by moving the second slider 3 along the second linear guide rail 2, while the original slider 3 slides on the original linear guide rail 2, ultimately achieving precise position adjustment of the stage 51 in the plane.

[0048] Specifically, the installation method of the second linear guide rail 2 is similar to that of the original linear guide rail 2, which may involve fixing the guide rail base 21 to the surface of the base 1 with fasteners. The sliding mechanism of the second slider 3 is the same as that of the original slider 3, and may include ball bearings or guide groove structures to support smooth displacement. The entire structure constructs a composite motion mechanism through a vertically arranged guide rail system, without the need for additional complex components.

[0049] like Figure 1 As shown, in one embodiment, a positioning device for automatic drilling of furniture boards according to this application, for example, has a second linear guide rail 2 fixed to the upper surface of the base 1 by bolts, and a second slider 3 slidably mounted on it. The slider 3 has a built-in ball bearing to reduce resistance. Specifically, the guide rail base 21 of the original linear guide rail 2 is directly connected to the upper plane of the second slider 3 by hexagonal bolts. At the same time, the direction of the guide rail 22 of the second linear guide rail 2 is set to be perpendicular to the guide rail 22 of the original linear guide rail 2, forming a cross-shaped layout, thereby allowing the position movement of the platform 51 in the X and Y directions to be synchronously controlled by the lead screw 23 mechanism driven by the motor 24.

[0050] The slider 3 in this positioning device is equipped with a ball bearing assembly. These balls are designed with high precision and directly engage with the lead screw 23 to form a low-friction motion interface. As a key component of the slider 3, the balls are embedded within its internal structure, ensuring precise linear displacement as they roll on the surface of the lead screw 23. The diameter tolerance of the high-precision balls is strictly controlled within ±0.01mm. This precision control is achieved through stringent manufacturing standards aimed at minimizing the clearance between the balls and the lead screw 23. With this configuration, the balls roll within the threaded grooves of the lead screw 23, effectively reducing positional deviations during operation and thus improving overall positioning accuracy. The balls are mounted in the contact area between the slider 3 and the lead screw 23. The structure includes a ball body and a cage. The cage fixes the position of the balls and allows them to rotate freely, while simultaneously forming a stable rolling engagement with the lead screw 23.

[0051] In one embodiment, the ball bearings of the slider 3 of the positioning device for automatic drilling of furniture boards in this application can achieve high precision by selecting G5 grade precision ball bearings that conform to ISO standards. Specifically, for example, bearing steel is used and manufactured by precision grinding process, with the diameter tolerance controlled within ±0.01mm. The ball bearings are installed in the ball cage inside the slider 3. The cage is designed as a ring structure and precisely matches the thread groove of the lead screw 23, thereby forming a low-friction rolling fit.

[0052] like Figure 3 As shown, in one embodiment, the drilling bracket 4 of the positioning device for automatic drilling of furniture boards according to this application includes a left upright 41, a right upright 45, and a drilling plate 43, which together form a support frame. The left upright 41 and the right upright 45 are located on both sides of the device and are fixed to the base 1 by a rigid connection to ensure overall stability; the drilling plate 43 is horizontally arranged between the two and serves as the main load-bearing component, with a reserved installation position in its central area for accommodating the drill sleeve assembly.

[0053] Specifically, the drill plate 43 is connected to the left support 41 via a shoulder bolt 42. The shoulder bolt 42 has a shoulder structure that fits into the corresponding hole in the drill plate 43, allowing the shoulder bolt 42 to rotate freely around its own central axis, thereby providing angle adjustment capability. This connection method not only simplifies the assembly process but also enhances adaptability during drilling.

[0054] At the center of the drilling plate 43, a quick-change drill sleeve 44 is installed. The drill sleeve adopts a standardized interface design, which can quickly disassemble and install the drill template, making it easy to change different specifications of drill bits or templates according to processing needs, thus improving operational flexibility.

[0055] For example, the shoulder bolt 42 can rotate by the clearance fit between its shoulder and the hole wall of the drill plate 43, while the threaded end of the bolt is screwed into the threaded hole of the left stand 41 for a fixed connection; the quick-change drill sleeve 44 adopts a spring clip or quick locking mechanism, such as a pin design, which allows the operator to manually press to unlock and directly remove and replace the drill template without additional tools, ensuring an efficient replacement process.

[0056] like Figure 2 As shown, in one embodiment, the linear guide 2 is driven by a motor 24, which is connected to a lead screw 23 via a flexible coupling 25. Structurally, the motor 24 is mounted at the end of the linear guide 2, with its output shaft rigidly coupled to one end of the flexible coupling 25, while the other end of the flexible coupling 25 is directly connected to the input end of the lead screw 23. This connection ensures efficient transmission of rotary motion while isolating external vibrations through the buffering characteristics of the flexible coupling 25. The flexible coupling 25 is made of a rubber and metal composite, for example, including an internal metal flange for high-strength fixing and an external rubber layer to provide elastic deformation capability. This composite structure allows the coupling to absorb high-frequency vibrations through the flexibility of the rubber when subjected to dynamic loads, thereby reducing the propagation of vibrations to the linear guide 2.

[0057] Specifically, the motor 24 is fixed to the end of the linear guide rail 2. Specifically, the output shaft of the motor 24 is coupled to the input shaft of the lead screw 23 through the flexible coupling 25. For example, the flexible coupling 25 consists of two metal end caps and a rubber core. The metal end caps are connected to the shaft of the motor 24 and the shaft of the lead screw 23 through keyways respectively. The rubber core is filled in the middle to form a flexible buffer layer, thereby achieving vibration isolation.

[0058] like Figure 2 As shown, in one embodiment, the slider 3 assembly is connected to a lead screw 23, which, as part of a linear motion drive mechanism, transmits rotational motion to drive the slider 3 to make precise displacements along a guide rail. Bearings 31 are mounted at both ends of the lead screw 23, and these bearings 31 are fixed to the basic support structure of the device, specifically at the ends of the lead screw 23's axis. The bearings 31 are designed with an inner ring and an outer ring. The inner ring mates with the shoulder of the lead screw 23, while the outer ring is mounted on the base 1 or the guide rail base 21 via a fixed seat or directly to achieve stable rotational support. This configuration ensures that the bearings effectively constrain the radial degree of freedom of the lead screw 23, preventing unnecessary displacement during operation.

[0059] Specifically, the balls inside the slider 3 engage with the threads of the lead screw 23, and the bearing 31 assists the balls in rolling stably on the surface of the lead screw 23 by providing axial and radial constraints. This reduces the risk of ball runout or misalignment caused by external loads or inertial forces, thereby maintaining a precise fit between the balls and the threads. The bearing 31 can be installed using interference fit or locking elements to enhance the overall structural rigidity and avoid loss of motion accuracy due to lateral misalignment.

[0060] For example, a deep groove ball bearing is installed at each end of the lead screw 23. The outer ring of the bearing is fixed to the guide rail base 21 by bolts, and the inner ring is engaged with the shoulder of the lead screw 23 and fastened with a lock nut, thereby realizing the smooth rotation of the lead screw 23 and effectively limiting radial displacement, ensuring stable meshing between the ball and the thread of the lead screw 23.

[0061] In actual operation, when this device is used, the furniture board 61 is first placed on the platform 51. The board is positioned in the Y direction by the positioning block 5, and the board is positioned and clamped in the X direction by the clamping block 6. Then, the motor 24 is started to drive the lead screw 23. The lead screw 23 drives the slider 3 to move along the linear guide rail 2, thereby moving the platform 51 and the board to the predetermined drilling position. At the drilling bracket 4, the quick-change drill sleeve 44 ensures the geometric rigidity of the drilling process and performs automatic drilling operation.

[0062] The above description is the preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this invention, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A positioning device for automatic drilling of furniture boards, characterized in that, include: The base (1) is used to provide a supporting foundation; A linear guide rail (2) is mounted on the base (1); The slider (3) is slidably mounted on the linear guide rail (2); A drilling bracket (4) is fixed to the base (1), and a quick-change drill sleeve (44) is fixed on the top; A platform (51) is installed above the slider (3) for placing furniture boards (61); A positioning block (5) is installed on the upper part of the platform (51) and is used to position the furniture board (61) in the Y direction. The clamping block (6) is connected to the platform (51) by a hexagonal bolt and is used to position and clamp the furniture board in the X direction. The linear guide rail (2) includes a guide rail base (21) and a guide rail (22), and the guide rail base (21) is fixed to the upper surface of the base (1) by bolts; The linear guide (2) is equipped with a lead screw (23) and a motor (24). The lead screw (23) is located at the center of the guide base (21) and is used to precisely cooperate with the balls of the slider (3) to reduce friction.

2. The positioning device for automatic drilling of furniture boards according to claim 1, characterized in that: The lower surface of the base (1) is provided with an anti-slip rubber pad (11) to enhance the friction with the workbench.

3. The positioning device for automatic drilling of furniture boards according to claim 1, characterized in that: The base (1) has positioning pin holes (26), which are symmetrically distributed on the base (1) and are used to fix the position of the linear guide rail (2) by means of hexagonal bolts.

4. The positioning device for automatic drilling of furniture panels according to claim 1, characterized in that: The lead screw (23) of the guide rail (22) is coated with a lubricating coating (29) to reduce ball friction and wear.

5. A positioning device for automatic drilling of furniture panels according to claim 1, characterized in that: The linear guide rail (2) is mounted on the base (1) via the same linear guide rail (2). The linear guide rail (2) is slidably mounted with the same slider (3). The linear guide rail (2) is fixedly connected to the slider (2). The linear guide rail (2) is arranged perpendicular to the linear guide rail (2).

6. A positioning device for automatic drilling of furniture panels according to claim 1, characterized in that: The drilling support (4) consists of a left support (41), a right support (45) and a drilling plate (43). The left support (41) and the right support (45) are located on both sides above the base (1). One end of the drilling plate (43) is connected to the left support (41) by a shoulder bolt (42). The other end of the drilling plate (43) can be placed above the right support (45). The shoulder bolt (42) can rotate around the central axis. A quick-change drill sleeve (44) is installed at the center of the drilling plate (43).

7. A positioning device for automatic drilling of furniture panels according to claim 1, characterized in that: The linear guide (2) is driven by a motor (24), which is connected to the lead screw (23) via a flexible coupling (25). The flexible coupling (25) is made of rubber and metal composite and is used to buffer drilling vibration.

8. A positioning device for automatic drilling of furniture boards according to claim 1, characterized in that: The slider (3) is connected to the lead screw (23) and both ends are equipped with bearings (31) to assist the ball bearings in rolling stably.

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