Single station square leg hole drilling apparatus

Abstract

This utility model discloses a single-station square-leg multi-hole drilling device, including a base and a drilling rocker arm. The drilling rocker arm is mounted on a drilling machine. Two clamping mechanisms for fixing the square legs are installed on the base. Each clamping mechanism includes a bearing seat, a turntable, an electric telescopic rod a, a bullseye bearing, an electric telescopic rod b, a roller, and a motor a. The bearing seat is fixed to the base with bolts, and a rotatable turntable is mounted on the bearing seat via bearings. The electric telescopic rod a is installed inside the turntable. This single-station square-leg multi-hole drilling device uses a PLC to control the extension distance of the electric telescopic rods a and b, achieving centered clamping of the square legs and maintaining the concentricity of the square legs and the turntable during rotation, thus improving the positioning accuracy of the drilling. The rotation of motor a moves the square legs, adjusting the drilling spacing. Motor b drives a screw to rotate, which in turn drives a worm gear ring to rotate the turntable, achieving angular rotation of the square legs. This allows for the processing of multiple faces of the square legs, enabling multi-face processing.

Description

Technical Field

[0001] This utility model relates to a wooden furniture production and processing equipment, specifically a single-station square leg multi-hole drilling device. Background Technology

[0002] Fully automatic drilling equipment (such as CNC drilling centers and fully automatic multi-spindle drilling machines) is one of the core equipment in the industrial production of furniture. Its structural design revolves around "high precision, high efficiency, and automation," and it is usually composed of multiple collaborative systems. Currently, the drilling distance positioning, distance measurement, and control technologies of fully automatic drilling equipment are relatively mature, but its clamping is very outdated. There are usually only two clamping methods: two-sided clamping and two-end clamping. Two-sided clamping uses an actuator to drive the holding component to fix the square leg and prevent it from moving during drilling. However, this holding component cannot be flipped. When drilling on the back or other sides of the square leg is required, it needs to be manually flipped. Two-end clamping is mostly used for processing round logs. The log blank is processed into a round log by turning. The concentricity is maintained, and then the rotation of the holding component is controlled by the machine tool to drill holes in the round log at multiple angles. However, when used for processing square legs, it cannot maintain concentricity during clamping, resulting in excessive deviation, which affects the drilling progress. Therefore, this application is made. Utility Model Content

[0003] The purpose of this invention is to provide a single-station square-leg multi-hole drilling device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A single-station square-leg multi-hole drilling device includes a base and a drilling rocker arm. The drilling rocker arm is mounted on a drilling machine, and two clamping mechanisms for fixing the square legs are installed on the base.

[0006] The clamping mechanism includes a bearing housing, a turntable, an electric telescopic rod a, a bullseye bearing, an electric telescopic rod b, a roller, and a motor a. The bearing housing is fixed to the base by bolts. The bearing housing is mounted on a rotatable turntable via bearings. The turntable contains electric telescopic rods a, bullseye bearings, and electric telescopic rod b. The three electric telescopic rods a and one electric telescopic rod b are arranged in a cross shape. Bullseye bearings are installed on the symmetrically distributed electric telescopic rods a. Rollers are mounted on the telescopic ends of the symmetrically distributed electric telescopic rods a and b via U-shaped seats. A motor a, which drives the rollers to rotate, is mounted on the U-shaped seat on which the electric telescopic rod b is mounted.

[0007] As a further embodiment of this utility model: the U-shaped seat and the turntable are slidably connected by guide rails, the turntable is provided with a mounting seat inside, the mounting seat is located on the outside of the U-shaped seat, slide rails are installed on both sides of the U-shaped seat, and the mounting seat is provided with a sliding groove inside, so that the slide rail can slide in the sliding groove.

[0008] As a further embodiment of this utility model: a worm gear ring is fixedly installed on one side of the turntable, and the worm gear ring is provided with equally spaced annularly distributed tooth grooves. A motor b is installed on the top of the base, and a screw that meshes with the tooth grooves of the worm gear ring is installed at the output end of the motor b. The two ends of the screw are installed on the base through bearings.

[0009] As a further embodiment of this utility model: motor a and motor b are stepper motors respectively, and a brush ring is provided on the outer side of the worm gear ring, which provides electrical energy and control signals to motor a, electric telescopic rod a and electric telescopic rod b.

[0010] As a further improvement of this utility model: the turntable is C-shaped, with an installation platform on one side of the opening, the electric telescopic rod b and the mounting base are installed on the installation platform, and the base is provided with a slot to meet the rotation space requirements of the turntable.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This single-station square-leg multi-hole drilling device uses a PLC to control the extension distance of electric telescopic rods a and b, achieving centered clamping of the square legs and maintaining the concentricity of the square legs and turntable during rotation, thus improving the positioning accuracy of drilling. The rotation of motor a moves the square legs, adjusting the drilling spacing. Motor b drives the screw to rotate, which in turn drives the worm gear ring to rotate the turntable, achieving angular rotation of the square legs. This allows for the processing of multiple faces of the square legs, enabling multi-face processing. Attached Figure Description

[0013] Figure 1 A schematic diagram of a single-station square-leg multi-hole drilling device;

[0014] Figure 2 This is a schematic diagram of the clamping mechanism in a single-station square-leg multi-hole drilling device.

[0015] Figure 3 A schematic diagram of the rotary table in a single-station square-leg multi-hole drilling device;

[0016] Figure 4 This is a cross-sectional view of the rotary table in a single-station square-leg multi-hole drilling device.

[0017] In the diagram: 1. Base; 2. Drilling rocker arm; 3. Bearing seat; 4. Turntable; 5. Gear ring; 6. Electric telescopic rod a; 7. Bullseye bearing; 8. Motor b; 9. Electric telescopic rod b; 10. Mounting seat; 11. U-shaped seat; 12. Slide rail; 13. Roller; 14. Motor a; 15. Screw; 16. Bearing; 17. Brush ring. Detailed Implementation

[0018] Please see Figures 1-4 In this embodiment of the utility model, the single-station square leg multi-hole drilling device includes a base 1 and a drilling rocker arm 2. The drilling rocker arm 2 is mounted on the drilling machine. Two clamping mechanisms for fixing the square legs are installed on the base 1. The current fully automatic drilling equipment consists of a bed and a frame. The drilling rocker arm 2 is mounted on the frame. This is the prior art and will not be described in detail here.

[0019] The clamping mechanism includes a bearing seat 3, a turntable 4, an electric telescopic rod a6, a bullseye bearing 7, an electric telescopic rod b9, a roller 13, and a motor a14. The bearing seat 3 is fixed to the base 1 by bolts. The bearing seat 3 is mounted on a rotatable turntable 4 via bearings. The turntable 4 houses the electric telescopic rod a6, the bullseye bearing 7, and the electric telescopic rod b9. The three electric telescopic rods a6 and one electric telescopic rod b9 are arranged in a cross shape. Bullseye bearings 7 are installed on the vertically symmetrically distributed electric telescopic rods a6. The telescopic ends of the horizontally symmetrical electric telescopic rods a6 and b9 are mounted on rollers 13 via U-shaped seats 11. Rollers 13 are mounted on the U-shaped seats 11 on which the electric telescopic rod b9 is mounted. The motor a14 has an output shaft that can drive the roller 13 to rotate. This application controls the electric telescopic rod a6, electric telescopic rod b9, motor a14 and motor b8 through PLC programming. The center of rotation of the turntable 4 is the center of rotation of the square leg. By calculating the center point of the square leg, the telescopic distance of the electric telescopic rod a6 and electric telescopic rod b9 is set, which can clamp square and rectangular legs. The upper and lower electric telescopic rods a6 clamp the square leg in the center first, and then the left and right symmetrical electric telescopic rods a6 and electric telescopic rod b9 adjust and clamp the square leg to achieve centered clamping and maintain the concentricity of the square leg and the turntable 4 during rotation. The rotation of motor a14 drives the square leg to move and adjust the drilling distance.

[0020] In a preferred embodiment, the U-shaped base 11 and the turntable 4 are slidably connected by guide rails. The turntable 4 is provided with a mounting base 10, which is located outside the U-shaped base 11. Slide rails 12 are installed on both sides of the U-shaped base 11. The mounting base 10 has a sliding groove inside, and the slide rails 12 can slide in the sliding groove. A motor a14 is provided on one side of the electric telescopic rod b9. Therefore, it will generate a certain centrifugal force during rotation, requiring a more stable mounting base 10 and U-shaped base 11 installation method.

[0021] In a preferred embodiment, a worm gear ring 5 is fixedly installed on one side of the turntable 4. The worm gear ring 5 is provided with equally spaced annularly distributed tooth grooves. A motor b8 is installed on the top of the base 1. A screw 15 that meshes with the tooth grooves of the worm gear ring 5 is installed at the output end of the motor b8. The two ends of the screw 15 are installed to the base 1 through bearings 16. The turntable 4 is driven to rotate by the worm gear ring 5 and the screw 15. The motor b8 drives the turntable 4 to rotate, thereby driving the turntable 4 to rotate. After the screw 15 stops rotating, it locks the worm gear ring 5 to prevent the worm gear ring 5 from rotating and fixes the angle of the turntable 4.

[0022] In a preferred embodiment, motors a14 and b8 are stepper motors, and a brush ring 17 is provided on the outer side of the worm gear ring 5. The brush ring 17 provides electrical energy and control signals to motors a14, electric telescopic rod a6, and electric telescopic rod b9. The stepper motor accurately converts the electrical pulse signals into angular or linear displacement. By controlling the number, frequency, and sequence of pulses, precise control of rotation angle, speed, and direction can be achieved. Therefore, the precise control characteristics of stepper motors in controlling rotation angle, speed, and direction can be utilized to achieve the purpose of controlling the rotation angle of the square leg and controlling the drilling spacing by moving the square leg.

[0023] In a preferred embodiment, the turntable 4 is C-shaped, with an installation platform on one side of the opening. The electric telescopic rod b9 and the mounting base 10 are installed on the installation platform, and the base 1 has a slot to meet the rotation space requirements of the turntable 4.

[0024] It should be noted that all the above embodiments belong to the same utility model concept, and the descriptions of each embodiment have different focuses. Where the description in a particular embodiment is not detailed, please refer to the description in other embodiments.

[0025] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. Single-station square-hole multi-hole drilling device, comprising a base (1) and a drilling rocker (2), the drilling rocker (2) being arranged on a punch, characterized in that, Two clamping mechanisms for fixing the square legs are installed on the base (1); The clamping mechanism includes a bearing seat (3), a turntable (4), an electric telescopic rod a (6), a bullseye bearing (7), an electric telescopic rod b (9), a roller (13), and a motor a (14). The bearing seat (3) is fixed to the base (1) by bolts. The bearing seat (3) is mounted on a rotatable turntable (4) through a bearing. The turntable (4) is equipped with an electric telescopic rod a (6), a bullseye bearing (7), and an electric telescopic rod b (9). The three electric telescopic rods a (6) and one electric telescopic rod b (9) are arranged in a cross shape. The electric telescopic rods a (6) are symmetrically distributed vertically and vertically and are equipped with bullseye bearings (7). The telescopic ends of the electric telescopic rods a (6) and the electric telescopic rod b (9) are symmetrically distributed horizontally and vertically and are equipped with rollers (13) through U-shaped seats (11). The U-shaped seats (11) on which the electric telescopic rod b (9) is mounted are equipped with motors a (14) that can drive the rollers (13) to rotate.

2. The single station square leg hole drilling apparatus of claim 1, wherein, The U-shaped seat (11) and the turntable (4) are slidably connected by a guide rail. The turntable (4) is provided with a mounting seat (10) inside. The mounting seat (10) is located outside the U-shaped seat (11). Slide rails (12) are installed on both sides of the U-shaped seat (11). The mounting seat (10) has a sliding groove inside, and the slide rails (12) can slide in the sliding groove.

3. The single station square leg hole drilling apparatus of claim 1, wherein, A worm gear ring (5) is fixedly installed on one side of the turntable (4). The worm gear ring (5) is provided with equally spaced annularly distributed tooth grooves. A motor b (8) is installed on the top of the base (1). A screw (15) that meshes with the tooth grooves of the worm gear ring (5) is installed at the output end of the motor b (8). The two ends of the screw (15) are installed on the base (1) through bearings (16).

4. The single station square leg hole drilling apparatus of claim 3, wherein, The motors a (14) and b (8) are stepper motors, and a brush ring (17) is provided on the outside of the worm gear ring (5). The brush ring (17) provides electrical energy and control signals to the motors a (14), electric telescopic rod a (6) and electric telescopic rod b (9).

5. The single station square leg hole drilling apparatus of claim 1 wherein, The turntable (4) is C-shaped, with an installation platform on one side of the opening. The electric telescopic rod b (9) and the mounting base (10) are installed on the installation platform. The base (1) has a slot to meet the rotation space requirements of the turntable (4).

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