Positioning structure of circuit board mold drilling machine

Abstract

The invention relates to the technical field of circuit board processing, and particularly discloses a circuit board mold drilling machine positioning structure which comprises a positioning base, the top of the positioning base is fixedly connected with a guiding positioning assembly, and the outer side of the guiding positioning assembly is fixedly connected with a size adjusting assembly. A pushing assembly is installed on the inner side of the size adjusting assembly, the guiding and positioning assembly comprises a first positioning disc, the top of the first positioning disc is fixedly connected with an adsorption positioning assembly, and the outer side of the adsorption positioning assembly is fixedly connected with a positioning block; in the diffusion process of the edge adjusting assembly, the corner adjusting assembly can be diffused synchronously, and the top of the sliding supporting strip, the top of the guide plate and the top of the first L-shaped plate are located on the same plane, so that the bottom of a circuit board can be effectively supported, punching work is facilitated, and the production efficiency is improved. And the included angle of the corner adjusting assembly can be positioned through the positioning adhesive tape according to actual processing requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board processing, and more specifically to a positioning structure of a circuit board mold drilling machine. Background Art

[0002] Circuit boards can be divided into many types according to their functions, including but not limited to: Single-sided circuit board: only one side is coated with copper foil, used for simple circuit connections. Double-sided circuit board: both sides are coated with copper foil, which can achieve more complex circuit connections. Multi-layer circuit board: made of multiple layers of copper foil and insulating materials, suitable for highly integrated electronic devices. Aluminum-based circuit board: on the basis of FR-4, a layer of aluminum metal is added as a heat dissipation layer, which has excellent thermal conductivity. Impedance circuit board: a circuit board with a specific impedance value, used to control the transmission quality of the signal. FPC flexible circuit board: made of polyimide or polyester film as the base material, with high reliability and excellent flexibility, suitable for electronic devices that need to be bent or folded.

[0003] Common equipment types and their functions in the circuit board processing process: Drilling machines are indispensable equipment in circuit board processing. They are mainly used to accurately drill holes in circuit boards. These holes are used to connect circuits at different levels to ensure that current can pass smoothly. The accuracy and stability of the drilling machine are crucial to the quality of the circuit board. Milling machines are used for cutting, trimming and forming in circuit board processing. Through high-speed rotating tools, milling machines can accurately cut the required circuit board shape while ensuring that the edges are flat and burr-free. Electroplating equipment is used to cover the surface of the circuit board with a layer of metal to improve its conductivity and corrosion resistance. During the electroplating process, parameters such as current, voltage and time need to be strictly controlled to ensure that the metal layer is uniform and dense.

[0004] The existing circuit board drilling machine needs to first locate the circuit board before drilling, but there are some shortcomings in the use of the existing circuit board, as follows:

[0005] The existing positioning structure for processing circuit boards is that workers place the circuit boards on the top of the positioning structure and then use positioning tape to complete the positioning of the circuit boards. However, when positioning the existing circuit boards, whether the angle of the circuit boards is accurately positioned is determined by the positioning lines on the positioning mechanism, which leads to the fact that the existing positioning structure cannot quickly position the circuit boards and is not convenient for ensuring that the fiberboards are positioned parallel. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a circuit board mold drilling machine positioning structure to solve the problems existing in the above-mentioned background technology.

[0007] The present invention provides the following technical solution: a positioning structure for a circuit board mold drilling machine, comprising a positioning base, a guide positioning component fixedly connected to the top of the positioning base, a size adjustment component fixedly connected to the outer side of the guide positioning component, a pushing component installed on the inner side of the size adjustment component, the guide positioning component comprising a first positioning disc, a suction positioning component fixedly connected to the top of the first positioning disc, a positioning block fixedly connected to the outer side of the suction positioning component, a servo motor fixedly connected to the side of the positioning block away from the suction positioning component, a transmission gear fixedly connected to the output shaft of the servo motor, a guide component fixedly connected to the outer side of the suction positioning component, the size adjustment component comprising an edge adjustment component, and corner adjustment components installed on both sides of the edge adjustment component.

[0008] Furthermore, the adsorption positioning assembly includes a first positioning column, the top of the first positioning column is fixedly connected to a second positioning disc, the inner side of the second positioning disc is fixedly connected to a conical tube, the bottom of the conical tube is fixedly connected to an L-shaped tube, the front of the L-shaped tube is fixedly connected to an air compressor, and the front of the air compressor is fixedly connected to an exhaust pipe.

[0009] Furthermore, the guide assembly includes a guide plate, guide grooves are provided on both sides of the top of the guide plate, first limiting grooves are provided on both sides of the guide groove, a storage groove is provided on the front side of the top of the guide plate, and a connecting arc surface is provided on the back side of the guide plate.

[0010] Furthermore, the edge adjustment component includes an edge positioning strip, and convex sliding grooves are provided on both sides of the edge positioning strip close to one side of the guide positioning strip, a second limiting groove is provided on the front side of the convex sliding groove, a sliding support strip is fixedly connected to the back side of the edge positioning strip, a positioning notch is provided on the top of the sliding support strip close to the front side, a first limiting block is fixedly connected to the back side of the sliding support strip, a pushing positioning plate is fixedly connected to the bottom of the edge positioning strip, and a pushing column is fixedly connected to the bottom of the pushing positioning plate.

[0011] Furthermore, the corner adjustment assembly includes a first L-shaped plate, a second L-shaped plate is fixedly connected to the outer side of the first L-shaped plate, and a second limiting block is fixedly connected to the outer side of the second L-shaped plate.

[0012] Furthermore, the pushing assembly includes a prototype pushing plate, the top of the prototype pushing plate is provided with an arc-shaped pushing groove, the inner side of the arc-shaped pushing groove is fixedly connected with a positioning bearing, the bottom of the outer side of the positioning bearing is fixedly connected with a connecting positioning sleeve, and the outer side of the connecting positioning sleeve is fixedly connected with a transmission gear ring.

[0013] Furthermore, the top of the conical tube and the top of the second positioning disc are on the same plane, the diameter of the outer side of the second positioning disc is the same as the diameter of the connecting arc surface, the width of the guide groove and the width of the sliding support strip are clearance matched, the width and height of the first limit groove and the width and height of the first limit block are clearance matched, and the height of the storage groove is the same as the height of the first L-shaped plate.

[0014] Furthermore, the cross-sectional shape and size of the second limit block are loosely matched with the cross-sectional shape and size of the second limit groove, the bottom of the edge positioning strip and the bottom of the guide plate are on the same plane, the top of the second positioning disc and the top of the guide assembly are on the same plane, and the cross-sectional sizes of the first L-shaped plate and the second L-shaped plate are closely matched with the cross-sectional sizes of the convex sliding groove.

[0015] Furthermore, the width of the arc-shaped push groove is clearance-matched with the diameter of the push column, the height of the locating bearing is the same as the sum of the heights of the connecting locating sleeve and the prototype push plate, the thickness of the transmission gear ring is the same as the thickness of the transmission gear, and the teeth on the outside of the transmission gear ring and the teeth on the outside of the transmission gear are meshed with each other.

[0016] Technical effects and advantages of the present invention:

[0017] 1. When positioning the circuit board, the present invention first drives the transmission gear to rotate through the operation of the servo motor, and then drives the transmission gear ring to rotate through the mutual meshing of the transmission gear and the transmission gear ring, and then drives the connection positioning sleeve to rotate to make the prototype push plate rotate, and then drives the arc-shaped push groove to rotate, and then drives the push column through the arc-shaped push groove, and diffuses outward under the positioning of the sliding support strip and the first limit block by the guide groove and the first limit groove, and then in the process of the edge adjustment component diffusing outward, the second limit block slides inside the second limit groove, and then diffuses to the point where the circuit board to be punched can be placed on the top of the guide positioning component, and then drives the transmission gear to rotate in the opposite direction through the operation of the servo motor, and then drives the four size adjustment components to approach and squeeze the four sides of the circuit board through the four edge positioning strips, so as to adjust the orientation of the circuit board, so that in the process of punching, the holes can be directly punched according to the circuit template, and the edge of the circuit board does not need to be identified, thereby ensuring the processing efficiency of the circuit board.

[0018] 2. In the process of the edge adjustment component spreading, the corner adjustment component will spread synchronously, and the top of the sliding support strip, the top of the guide plate and the top of the first L-shaped plate are in the same plane, which can effectively support the bottom of the circuit board, facilitate the punching work, and can be positioned at the angle of the corner adjustment component by positioning tape according to actual processing requirements.

[0019] 3. After the size adjustment assembly has positioned the circuit board, the air compressor extracts the air inside the L-shaped tube and the conical tube and discharges it through the exhaust pipe, so that the inside of the conical tube is in a negative pressure state, which can adsorb the circuit board on the top of the second positioning disc, and effectively position the circuit board.

[0020] 4. In the process of drilling holes, the debris generated by drilling holes can fall through the gaps between the guide components and the inner side of the corner adjustment components, thereby preventing the debris generated by drilling holes from accumulating on the top of the device, making it easier to clean the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a side schematic diagram of the overall structure of the present invention.

[0023] Figure 3 It is a schematic diagram of the structure of the guiding and positioning component of the present invention.

[0024] Figure 4 It is a schematic diagram of the structure of the adsorption and positioning component of the present invention.

[0025] Figure 5 It is a schematic diagram of the structure of the guide assembly of the present invention.

[0026] Figure 6 It is a schematic diagram of the size adjustment component structure of the present invention.

[0027] Figure 7 It is a schematic diagram of the structure of the edge adjustment component of the present invention.

[0028] Figure 8 It is a schematic diagram of the structure of the corner adjustment component of the present invention.

[0029] Fig. 9 It is a schematic diagram of the structure of the pushing component of the present invention.

[0030] The accompanying drawings are marked as follows: 1. positioning base; 2. guide positioning assembly; 201. first positioning disc; 202. adsorption positioning assembly; 2021. first positioning column; 2022. second positioning disc; 2023. tapered tube; 2024. L-shaped tube; 2025. air compressor; 2026. exhaust pipe; 203. positioning block; 204. servo motor; 205. transmission gear; 206. guide assembly; 2061. guide plate; 2062. guide groove; 2063. first limiting groove; 2064. storage groove; 2065. connecting arc surface; 3. size adjustment assembly ; 301, edge adjustment component; 3011, edge positioning strip; 3012, convex sliding groove; 3013, second limiting groove; 3014, sliding support strip; 3015, positioning notch; 3016, first limiting block; 3017, push positioning plate; 3018, push column; 302, corner adjustment component; 3021, first L-shaped plate; 3022, second L-shaped plate; 3023, second limiting block; 4, push component; 401, prototype push plate; 402, arc-shaped push groove; 403, positioning bearing; 404, connecting positioning sleeve; 405, transmission gear ring. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the circuit board mold drilling machine positioning structure involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0032] Reference Figure 1 and Figure 2 The present invention provides a positioning structure of a circuit board mold drilling machine, comprising a positioning base 1, a guide positioning component 2 is fixedly connected to the top of the positioning base 1, a size adjustment component 3 is fixedly connected to the outer side of the guide positioning component 2, a pushing component 4 is installed on the inner side of the size adjustment component 3, the guide positioning component 2 comprises a first positioning disc 201, an adsorption positioning component 202 is fixedly connected to the top of the first positioning disc 201, a positioning block 203 is fixedly connected to the outer side of the adsorption positioning component 202, a servo motor 204 is fixedly connected to the side of the positioning block 203 away from the adsorption positioning component 202, a transmission gear 205 is fixedly connected to the output shaft of the servo motor 204, a guide component 206 is fixedly connected to the outer side of the adsorption positioning component 202, and the size adjustment component 3 comprises an edge adjustment component 301, and corner adjustment components 302 are installed on both sides of the edge adjustment component 301.

[0033] In a preferred embodiment, the adsorption positioning component 202 includes a first positioning column 2021, the top of the first positioning column 2021 is fixedly connected to the second positioning disc 2022, the inner side of the second positioning disc 2022 is fixedly connected to the conical tube 2023, the bottom of the conical tube 2023 is fixedly connected to the L-shaped tube 2024, the front of the L-shaped tube 2024 is fixedly connected to the air compressor 2025, and the front of the air compressor 2025 is fixedly connected to the exhaust pipe 2026; after the size adjustment component 3 completes the positioning of the circuit board, The air compressor 2025 extracts the air inside the L-shaped tube 2024 and the conical tube 2023 and discharges it through the exhaust pipe 2026, so that the inside of the conical tube 2023 is in a negative pressure state, which can adsorb the circuit board on the top of the second positioning disk 2022, and effectively position the circuit board; in the process of drilling, the debris generated by drilling can fall through the gap between the guide components 206 and the inside of the corner adjustment component 302, so as to avoid the debris generated by drilling to accumulate on the top of the equipment, so as to facilitate the cleaning of the equipment.

[0034] In a preferred embodiment, the guide assembly 206 includes a guide plate 2061, guide grooves 2062 are opened on both sides of the top of the guide plate 2061, first limiting grooves 2063 are opened on both sides of the guide groove 2062, a storage groove 2064 is opened on the front of the top of the guide plate 2061, and a connecting arc surface 2065 is opened on the back of the guide plate 2061.

[0035] In a preferred embodiment, the edge adjustment component 301 includes an edge positioning strip 3011, and the edge positioning strip 3011 is provided with a convex sliding groove 3012 on both sides of the side close to the guide positioning component 2, and the front of the convex sliding groove 3012 is provided with a second limiting groove 3013, and the back of the edge positioning strip 3011 is fixedly connected to a sliding support strip 3014, and the top of the sliding support strip 3014 is provided with a positioning notch 3015 near the front, and the back of the sliding support strip 3014 is fixedly connected to a first limiting block 3016, and the edge positioning strip The bottom of 3011 is fixedly connected with a pushing positioning plate 3017, and the bottom of the pushing positioning plate 3017 is fixedly connected with a pushing column 3018; during the diffusion process of the edge adjustment component 301, the corner adjustment component 302 will diffuse synchronously, and the top of the sliding support strip 3014, the top of the guide plate 2061 and the top of the first L-shaped plate 3021 are in the same plane, which can effectively support the bottom of the circuit board, facilitate the punching work, and can be positioned at the angle of the corner adjustment component 302 by positioning tape according to actual processing requirements.

[0036] In a preferred embodiment, the corner adjustment component 302 includes a first L-shaped plate 3021, the outer side of the first L-shaped plate 3021 is fixedly connected to the second L-shaped plate 3022, and the outer side of the second L-shaped plate 3022 is fixedly connected to the second limit block 3023; when positioning the circuit board, the servo motor 204 is first used to drive the transmission gear 205 to rotate, and then the transmission gear ring 405 is driven to rotate by the mutual engagement of the transmission gear 205 and the transmission gear ring 405, and then the prototype push plate 401 is rotated by driving the connection positioning sleeve 404 to rotate, and then the arc-shaped push groove 402 is driven to rotate, and then the push column 3018 is pushed through the arc-shaped push groove 402, and the guide groove 2062 and the first limit groove 2063 are aligned. The sliding support bar 3014 and the first limit block 3016 diffuse outward under the positioning, and then in the process of the edge adjustment component 301 diffusing outward, the second limit block 3023 will slide inside the second limit groove 3013, and then diffuse until the circuit board to be punched can be placed on the top of the guide positioning component 2, and then the servo motor 204 drives the transmission gear 205 to rotate in the opposite direction, and then drives the four size adjustment components 3 to approach and squeeze the four sides of the circuit board through the four edge positioning bars 3011, so as to adjust the orientation of the circuit board, so that in the process of punching, holes can be punched directly according to the circuit template, and there is no need to identify the edge of the circuit board, thereby ensuring the processing efficiency of the circuit board.

[0037] In a preferred embodiment, the pushing component 4 includes a prototype pushing plate 401, a top of the prototype pushing plate 401 is provided with an arc-shaped pushing groove 402, the inner side of the arc-shaped pushing groove 402 is fixedly connected with a positioning bearing 403, the bottom of the outer side of the positioning bearing 403 is fixedly connected with a connecting positioning sleeve 404, and the outer side of the connecting positioning sleeve 404 is fixedly connected with a transmission gear ring 405.

[0038] In a preferred embodiment, the top of the conical tube 2023 and the top of the second positioning disc 2022 are on the same plane, the diameter of the outer side of the second positioning disc 2022 is the same as the diameter of the connecting arc surface 2065, the width of the guide groove 2062 and the width of the sliding support bar 3014 have a clearance fit, the width and height of the first limit groove 2063 and the width and height of the first limit block 3016 have a clearance fit, and the height of the storage groove 2064 is the same as the height of the first L-shaped plate 3021.

[0039] In a preferred embodiment, the cross-sectional shape and size of the second limit block 3023 are loosely matched with the cross-sectional shape and size of the second limit groove 3013, the bottom of the edge positioning strip 3011 and the bottom of the guide plate 2061 are on the same plane, the top of the second positioning disc 2022 and the top of the guide assembly 206 are on the same plane, and the cross-sectional sizes of the first L-shaped plate 3021 and the second L-shaped plate 3022 are closely matched with the cross-sectional sizes of the convex sliding groove 3012.

[0040] In a preferred embodiment, the width of the arc-shaped push groove 402 is clearance-matched with the diameter of the push column 3018, the height of the positioning bearing 403 is the same as the sum of the heights of the connecting positioning sleeve 404 and the prototype push plate 401, the thickness of the transmission gear ring 405 is the same as the thickness of the transmission gear 205, and the teeth on the outside of the transmission gear ring 405 and the teeth on the outside of the transmission gear 205 are meshed with each other.

[0041] The working principle of the present invention is as follows: when positioning the circuit board, the servo motor 204 is first used to drive the transmission gear 205 to rotate, and then the transmission gear 205 and the transmission gear ring 405 are meshed with each other to drive the transmission gear ring 405 to rotate, and then the prototype push plate 401 is rotated by driving the connection positioning sleeve 404 to rotate, and then the arc-shaped push groove 402 is driven to rotate, and then the push column 3018 is pushed through the arc-shaped push groove 402, and the push column 3018 is spread outward under the positioning of the sliding support strip 3014 and the first limit block 3016 by the guide groove 2062 and the first limit groove 2063, and then the edge adjustment component 3 01 In the process of spreading outward, the second limit block 3023 will slide inside the second limit groove 3013, and then spread to the point where the circuit board to be punched can be placed on the top of the guide positioning component 2, and then the servo motor 204 drives the transmission gear 205 to rotate in the opposite direction, and then drives the four size adjustment components 3 to approach and squeeze the four sides of the circuit board through the four edge positioning strips 3011, so as to adjust the orientation of the circuit board, so that in the process of punching, the holes can be punched directly according to the circuit template, and there is no need to identify the edge of the circuit board, thereby ensuring the processing efficiency of the circuit board;

[0042] During the diffusion process of the edge adjustment component 301, the corner adjustment component 302 will diffuse synchronously, and the top of the sliding support bar 3014, the top of the guide plate 2061 and the top of the first L-shaped plate 3021 are on the same plane, which can effectively support the bottom of the circuit board, facilitate the punching work, and can be positioned at the angle of the corner adjustment component 302 by positioning tape according to actual processing requirements;

[0043] After the size adjustment component 3 has positioned the circuit board, the air compressor 2025 extracts the air inside the L-shaped tube 2024 and the conical tube 2023 and discharges it through the exhaust pipe 2026, so that the inside of the conical tube 2023 is in a negative pressure state, and the circuit board can be adsorbed on the top of the second positioning disc 2022, so that the circuit board can be effectively positioned;

[0044] During the drilling process, the debris generated by drilling can fall through the gap between the guide components 206 and the inside of the corner adjustment component 302, thereby preventing the debris generated by drilling from accumulating on the top of the device, making it easier to clean the device.

[0045] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0046] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0047] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A circuit board mold drilling machine positioning structure, comprising a positioning base (1), characterized in that: The top of the positioning base (1) is fixedly connected to a guide positioning component (2), the outer side of the guide positioning component (2) is fixedly connected to a size adjustment component (3), the inner side of the size adjustment component (3) is installed with a pushing component (4), the guide positioning component (2) comprises a first positioning disc (201), the top of the first positioning disc (201) is fixedly connected to an adsorption positioning component (202), the outer side of the adsorption positioning component (202) is fixedly connected to a positioning block (203), the side of the positioning block (203) away from the adsorption positioning component (202) is fixedly connected to a servo motor (204), the output shaft of the servo motor (204) is fixedly connected to a transmission gear (205), the outer side of the adsorption positioning component (202) is fixedly connected to a guide component (206), the size adjustment component (3) comprises an edge adjustment component (301), and both sides of the edge adjustment component (301) are installed with corner adjustment components (302).

2. A circuit board mold drilling machine positioning structure according to claim 1, characterized in that: The adsorption positioning component (202) comprises a first positioning column (2021), the top of the first positioning column (2021) is fixedly connected to a second positioning disc (2022), the inner side of the second positioning disc (2022) is fixedly connected to a conical tube (2023), the bottom of the conical tube (2023) is fixedly connected to an L-shaped tube (2024), the front of the L-shaped tube (2024) is fixedly connected to an air compressor (25), and the front of the air compressor (2025) is fixedly connected to an exhaust pipe (2026).

3. A circuit board mold drilling machine positioning structure according to claim 2, characterized in that: The guide assembly (206) comprises a guide plate (2061), guide grooves (2062) are provided on both sides of the top of the guide plate (2061), first limit grooves (2063) are provided on both sides of the guide groove (2062), a storage groove (2064) is provided on the front of the top of the guide plate (2061), and a connecting arc surface (2065) is provided on the back of the guide plate (2061).

4. A circuit board mold drilling machine positioning structure according to claim 3, characterized in that: The edge adjustment component (301) comprises an edge positioning strip (3011), and convex sliding grooves (3012) are provided on both sides of the edge positioning strip (3011) on a side close to the guide positioning component (2), and a second limiting groove (3013) is provided on the front side of the convex sliding groove (3012), and a sliding support strip (3014) is fixedly connected to the back side of the edge positioning strip (3011), and a positioning notch (3015) is provided on the top of the sliding support strip (3014) close to the front side, and a first limiting block (3016) is fixedly connected to the back side of the sliding support strip (3014), and a pushing positioning plate (3017) is fixedly connected to the bottom of the edge positioning strip (3011), and a pushing column (3018) is fixedly connected to the bottom of the pushing positioning plate (3017).

5. A circuit board mold drilling machine positioning structure according to claim 4, characterized in that: The corner adjustment assembly (302) comprises a first L-shaped plate (3021), the outer side of the first L-shaped plate (3021) being fixedly connected to a second L-shaped plate (3022), and the outer side of the second L-shaped plate (3022) being fixedly connected to a second limiting block (3023).

6. A circuit board mold drilling machine positioning structure according to claim 4, characterized in that: The pushing assembly (4) comprises a prototype pushing plate (401), the top of the prototype pushing plate (401) is provided with an arc-shaped pushing groove (402), the inner side of the arc-shaped pushing groove (402) is fixedly connected to a positioning bearing (403), the bottom of the outer side of the positioning bearing (403) is fixedly connected to a connecting positioning sleeve (404), and the outer side of the connecting positioning sleeve (404) is fixedly connected to a transmission gear ring (405).

7. A circuit board mold drilling machine positioning structure according to claim 4, characterized in that: The top of the conical tube (2023) and the top of the second positioning disc (2022) are on the same plane, the diameter of the outer side of the second positioning disc (2022) is the same as the diameter of the connecting arc surface (2065), the width of the guide groove (2062) and the width of the sliding support strip (3014) are gap-matched, the width and height of the first limiting groove (2063) and the width and height of the first limiting block (3016) are gap-matched, and the height of the receiving groove (2064) is the same as the height of the first L-shaped plate (3021).

8. A circuit board mold drilling machine positioning structure according to claim 5, characterized in that: The cross-sectional shape and size of the second limiting block (3023) are loosely matched with the cross-sectional shape and size of the second limiting groove (3013); the bottom of the edge positioning strip (3011) and the bottom of the guide plate (2061) are on the same plane; the top of the second positioning disc (2022) and the top of the guide assembly (206) are on the same plane; the cross-sectional sizes of the first L-shaped plate (3021) and the second L-shaped plate (3022) and the cross-sectional size of the convex sliding groove (3012) are closely matched.

9. A circuit board mold drilling machine positioning structure according to claim 6, characterized in that: The width of the arc-shaped pushing groove (402) is clearance-matched with the diameter of the pushing column (3018); the height of the positioning bearing (403) is the same as the sum of the heights of the connecting positioning sleeve (404) and the prototype pushing plate (401); the thickness of the transmission gear ring (405) is the same as the thickness of the transmission gear (205); and the teeth on the outer side of the transmission gear ring (405) and the teeth on the outer side of the transmission gear (205) are meshed with each other.

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