Drilling machine with dynamic pressure foot

Abstract

The utility model discloses a drilling machine with a dynamic pressure foot, which comprises a main body and the pressure foot, a drilling motor is arranged in the main body, and the working end of the main body is provided with a mounting port for a drill bit to be detachably connected with an output shaft of the drilling motor; the end face of the main body working end is further provided with multiple sets of moving grooves which surround the mounting opening and are arranged at intervals. The number of the pressure feet is matched with that of the moving grooves, the pressure feet are connected into the mounting grooves in a sliding mode, and a chip removal channel capable of changing the distance is formed between any two adjacent pressure feet; through sliding fit of the moving grooves and the pressure feet, the multiple sets of pressure feet are folded or unfolded, the pressing area on workpieces is adjusted, drill bits with different diameter sizes can be matched for machining the workpieces with different thicknesses, different areas and different softness, and the industrial applicability is improved.

Description

Technical Field

[0001] The utility model relates to the field of drilling machines, in particular to a drilling machine with a dynamic pressure foot. Background Art

[0002] During the processing of PCB boards, the pressure foot of the drilling machine is required to squeeze the plate-shaped workpiece, and finally keep the workpiece fixed during the drilling process; however, the extrusion end area of the pressure foot is often fixed, and technicians cannot flexibly press according to the specific thickness, softness and area of the workpiece; during processing, it is also impossible to flexibly adjust the diameter of the drill bit. Therefore, it has great limitations in use. Therefore, a drilling machine with a more reasonable structure is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0003] In view of the technical problem that the pressure foot of the drilling machine in the prior art is fixed and has a relatively simple structure, and the pressing position cannot be flexibly adjusted during use, which has great limitations, the present utility model provides a solution.

[0004] To achieve the above-mentioned object, the present invention provides a drilling machine with a dynamic pressure foot, which is characterized by comprising:

[0005] A main body, wherein the main body contains a drilling motor, and a working end of the main body is provided with a mounting opening for detachably connecting a drill bit to an output shaft of the drilling motor; an end surface of the working end of the main body is further provided with a plurality of movable grooves arranged at intervals around the mounting opening;

[0006] Pressure feet, the number of which matches the number of the movable grooves, the pressure feet being slidably connected in the movable grooves, and a chip removal channel with a variable spacing being formed between any two adjacent pressure feet.

[0007] As an improved solution of the present application, the movable groove is arc-shaped.

[0008] As an improved solution of the present application, the chip removal channel is an arc-shaped channel with a desired arc, and the arc of the arc-shaped channel is rotated in the same direction with the installation opening as the center.

[0009] As an improved solution of the present application, when multiple groups of the pressure feet are used to form chip removal channels with a maximum spacing, the outer side surfaces of the pressure feet are flush with the outer side surface of the main body.

[0010] As an improved solution of the present application, an adjustment box is further provided at one end of the main body close to the pressure foot, and the adjustment box is used to drive all the pressure feet to slide back and forth between the two extreme positions of the movable groove.

[0011] As an improved solution of the present application, a motor box is provided on the outer wall of the adjustment box, and an adjustment motor with an output shaft sleeve and transmission teeth is provided in the motor box; an adjustment gear meshing with the transmission teeth is provided in the adjustment box, and the bottom of the movable groove is provided with a strip hole connected to the adjustment box, and the pressure foot is provided with a tooth portion extending from the strip hole into the adjustment box.

[0012] As an improved solution of the present application, the regulating motor is a servo motor.

[0013] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model provides a drilling machine with a dynamic pressure foot, which is characterized in that it includes a main body and a pressure foot, wherein the main body contains a drilling motor, and the working end of the main body is provided with a mounting port for disassembling and connecting the drill bit and the output shaft of the drilling motor; the end face of the working end of the main body is also provided with multiple groups of movable grooves surrounding the mounting port and arranged at intervals; the number of pressure feet matches the number of movable grooves, and the pressure feet are slidably connected in the movable grooves to form a chip removal channel with variable spacing between any two adjacent pressure feet; through the sliding cooperation of the movable grooves and the pressure feet, multiple groups of pressure feet are closed or expanded, and the pressing area on the workpiece is adjusted, and drill bits of different diameters can be used to process workpieces of different thicknesses, different area sizes and different softness, thereby increasing industrial applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 This is a three-dimensional diagram from another angle of the present invention;

[0016] Figure 3 It is a bottom view of the present utility model.

[0017] The main component symbols are described as follows:

[0018] 1. Main body; 11. Moving slot; 12. Adjustment box; 13. Drive motor; 2. Drill bit; 3. Pressure foot;

[0019] 4. Chip removal channel. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0021] In the following description, examples are provided to provide a deeper understanding of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. It should be understood that the specific embodiments described are only for the purpose of explaining the present invention and are not intended to limit the present invention.

[0022] It should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the stated features, integers, steps, operations, elements or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components or combinations thereof.

[0023] During the processing of PCB boards, the pressure foot of the drilling machine is required to squeeze the plate-shaped workpiece, and finally keep the workpiece fixed during the drilling process; however, the extrusion end area of the pressure foot is often fixed, and technicians cannot flexibly press according to the specific thickness, softness and area of the workpiece; during processing, it is also impossible to flexibly adjust the diameter of the drill bit. Therefore, it has great limitations in use. Therefore, a drilling machine with a more reasonable structure is urgently needed to solve the above-mentioned technical problems.

[0024] In order to solve the above technical problems, the present application provides a drilling machine with a dynamic pressure foot 3, see the attached Figure 1 To the attached Figure 3 The main body 1 includes a drilling motor and a pressure foot 3. The main body 1 includes a mounting hole for detachably connecting a drill bit 2 to the output shaft of the drilling motor. The end surface of the working end of the main body 1 is also provided with a plurality of movable grooves 11 arranged around the mounting hole and at intervals. The number of pressure feet 3 matches the number of movable grooves 11. The pressure feet 3 are slidably connected to the movable grooves, and a chip removal channel 4 with a variable spacing is formed between any two adjacent pressure feet 3.

[0025] The present application is further elaborated below in conjunction with specific usage scenarios: first, the drilling machine is assembled on the working arm, the first type of workpiece to be processed is arranged, the main body 1 of the drilling machine is controlled to face the workpiece position, the surface of the first type of workpiece is first pressed by the pressure foot 3 so that the workpiece does not move relative to the surface, and the drill bit 2 is extended from the main body 1 to drill a hole on the surface of the first type of workpiece, and the debris formed during the drilling process is discharged from the discharge channel, so that the drilling process will not be affected by the accumulation of trivial debris and cause errors; subsequently, if the second type of workpiece is to be processed, after disassembling and replacing the drill bit 2, the pressure foot 3 is adjusted so that the pressure foot 3 moves in the movable groove 11, so that the second type of workpiece can be pressed more flexibly, thereby ensuring the stability of the product processed subsequently and effectively changing the roughness of the hole mouth and the hole wall;

[0026] It can be seen that through the sliding cooperation between the movable groove 11 and the pressure foot 3, multiple groups of pressure feet 3 can be closed or expanded, and the pressing area on the workpiece can be adjusted. Drill bits 2 of different diameters can be used to process workpieces of different thicknesses, different sizes and different softness, thereby increasing industrial applicability.

[0027] As an improvement scheme of the present application, in this embodiment, the groove shape of the movable groove 11 is arc-shaped; compared with the movable groove 11 set in a straight line, the pressure foot 3 can obtain a long moving distance through the arc-shaped movable groove 11, and the pressing area formed by the corresponding arc-shaped bending position is a more concentrated workpiece size range, which can better press the workpiece within the conventional size range and is convenient for use by the staff.

[0028] In this embodiment, the chip removal channel 4 is an arc-shaped channel with an expected curvature, and the arc of the arc-shaped channel is rotated in the same direction with the installation port as the center; it is not difficult to understand that during the drilling process, debris is quickly generated and fills the central space enclosed by multiple sets of pressure feet 3. The arc-shaped channel can significantly increase the accommodating capacity and buffering capacity for debris, preventing excessive debris from being directly squeezed onto the drill bit 2 and affecting the quality of the hole.

[0029] In this embodiment, when multiple groups of pressure feet 3 are used to form chip removal channels 4 with extreme spacing, the outer side surfaces of the pressure feet 3 are flush with the outer side surfaces of the main body 1. Through the above design, the expanded area of the pressure feet 3 is maximized, thereby providing a larger area of extrusion area on the surface of the workpiece.

[0030] In this embodiment, the main body is further provided with an adjustment box 12 at one end near the pressure foot 3, and the adjustment box 12 is used to drive all the pressure feet 3 to slide back and forth between the two extreme positions of the movable groove 11; it is not difficult to understand that in the process of the reciprocating movement of the pressure foot 3, that is, multiple groups of pressure feet 3 are retracted or expanded with the installation port as the center, the multiple groups of pressure feet 3 have been adjusted by the adjustment box 12. Specifically, the adjustment box 12 can be configured to set the movable groove 11 as an electric guide rail, and the main control board for controlling the electric rail is placed in the adjustment box 12, so as to realize the sliding of the pressure foot 3 and realize flexible pressing of the workpiece; or the movable groove 11 can be configured to be an electromagnetic guide rail to realize the sliding of the pressure foot 3, and the control element for the electromagnetic guide rail is placed in the adjustment box; in a better solution, the outer wall of the adjustment box 12 is provided with a motor box, and the motor box The output shaft sleeve is provided with an adjusting motor with transmission teeth; the adjusting box 12 is provided with an adjusting gear meshing with the transmission teeth, the bottom of the movable groove 11 is provided with a strip hole connected to the adjusting box 12, and the pressure foot 3 is provided with a tooth portion extending from the strip hole into the adjusting box 12; it is not difficult to understand that the pressure foot 3 is controlled by the gear meshing transmission method, and the mechanical transmission can have stronger stability. Specifically, the driving motor 13 rotates forward, and the transmission teeth and the adjusting gear rotate accordingly, thereby driving the teeth to move in the first direction, and finally making the pressure foot 3 slide in the movable groove 11 to achieve the expanded state to better extrude large-area workpieces; conversely, the driving motor 13 flips over, driving the inner teeth to move in the second direction, and finally making the pressure foot 3 achieve the retracted state, so as to press the small-area workpiece machine;

[0031] In a more optimal solution, the driving motor 13 is a servo motor, which has a precise rotation capability and is more conducive to the precise adjustment of the expansion range of the pressure foot 3.

[0032] The advantages of this utility model are:

[0033] 1. Through the sliding cooperation between the movable groove and the pressure foot, multiple sets of pressure feet can be closed or expanded to adjust the pressing area on the workpiece. It can be used with drill bits of different diameters to process workpieces of different thicknesses, different sizes and different softness, thus increasing industrial applicability.

[0034] 2. When multiple sets of pressure feet are used to form chip removal channels with extreme spacing, the outer side of the pressure feet is flush with the outer side of the main body, maximizing the deployment area of the pressure feet and providing a larger area for squeezing the surface of the workpiece;

[0035] 3. The arc-shaped channel can significantly increase the capacity and buffering capacity of debris, preventing excessive debris from being directly squeezed onto the drill bit and affecting the quality of the hole.

[0036] The above disclosures are only a few specific embodiments of the present invention, but the present invention is not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A drilling machine with a dynamic pressure foot, characterized in that: include: A main body, wherein the main body contains a drilling motor, and a working end of the main body is provided with a mounting opening for detachably connecting a drill bit to an output shaft of the drilling motor; The end surface of the working end of the main body is also provided with a plurality of movable grooves surrounding the mounting opening and arranged at intervals; Pressure feet, the number of which matches the number of the movable grooves, the pressure feet being slidably connected in the movable grooves, and a chip removal channel with a variable spacing being formed between any two adjacent pressure feet.

2. The drilling machine with a dynamic pressure foot according to claim 1, characterized in that The movable groove is in an arc shape.

3. The drilling machine with a dynamic pressure foot according to claim 1, characterized in that The chip removal channel is an arc-shaped channel with a desired arc, and the arc of the arc-shaped channel is rotated in the same direction with the installation opening as the center.

4. The drilling machine with a dynamic pressure foot according to claim 1, characterized in that When multiple groups of the pressure feet are arranged to form a chip removal channel with a maximum spacing, the outer side surfaces of the pressure feet are flush with the outer side surface of the main body.

5. The drilling machine with a dynamic pressure foot according to claim 1, characterized in that An adjustment box is further provided at one end of the main body close to the pressure feet, and the adjustment box is used to drive all the pressure feet to slide back and forth between the two extreme positions of the moving groove.

6. The drilling machine with a dynamic pressure foot according to claim 5, characterized in that The outer wall of the adjustment box is provided with a motor box, and the motor box is provided with an adjustment motor whose output shaft sleeve is provided with transmission teeth; the adjustment box is provided with an adjustment gear meshing with the transmission teeth, the bottom of the movable groove is provided with a strip hole connected to the adjustment box, and the pressure foot is provided with a tooth portion extending from the strip hole into the adjustment box.

7. The drilling machine with a dynamic pressure foot according to claim 6, characterized in that The regulating motor is a servo motor.

Images