Circuit board pin shearing device

Abstract

The utility model discloses a circuit board pin shearing device which comprises a supporting plate, a motor and an automatic rollback shearing mechanism. The lower surface of the supporting plate is fixedly connected with a connecting frame; the motor is fixedly connected to the rear end of the lower surface of the connecting frame, and the input end of the motor is electrically connected with the output end of an external controller; the automatic rollback shearing mechanism comprises a rotating supporting disc, a connecting column, a sliding supporting frame, a rotating frame, a right circuit board pin shearing knife and a left circuit board pin shearing knife, the rotating supporting disc is fixedly connected to the lower end of an output shaft of the motor, and the connecting column is fixedly connected to the middle of the lower surface of the rotating supporting disc; the upper end of the outer surface of the connecting column is slidably connected with a sliding supporting frame, and a sliding opening is formed in the rear end of the lower surface of the sliding supporting frame, the circuit board pin shearing device can conduct automatic shearing, meanwhile, the circuit board pin shearing device automatically advances during shearing and automatically retreats after shearing is completed, and therefore interference of other pins on shearing and position adjustment is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board production, in particular to a circuit board pin shearing device. Background Art

[0002] Circuit board is an important electronic component, a support for electronic components, and a carrier for electrical connection of electronic components. During the production process of circuit board, the pins of the circuit board need to be cut, so the circuit board pin cutting is needed;

[0003] Some conventional circuit board pin shearing devices shear the circuit board by driving a shearing knife;

[0004] The existing circuit board pin cutting device has the following problems. For example, when the shearing knife moves or cuts, other pins on the circuit board may contact and collide with each other, thereby causing other pins on the circuit board to interfere with the cutting and position adjustment. For this reason, we propose a circuit board pin cutting device. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a circuit board pin cutting device, which can automatically move forward during cutting and automatically retract after cutting is completed, thereby avoiding interference during cutting and effectively solving the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circuit board pin shearing device, comprising a support plate, a motor and an automatic retracting shearing mechanism;

[0007] Support plate: a connecting frame is fixedly connected to the lower surface thereof;

[0008] Motor: It is fixedly connected to the rear end of the lower surface of the connecting frame, and the input end of the motor is electrically connected to the output end of the external controller;

[0009] Automatic retraction shearing mechanism: it includes a rotating support plate, a connecting column, a sliding support frame, a rotating frame, a right circuit board pin shearing knife and a left circuit board pin shearing knife. The rotating support plate is fixedly connected to the lower end of the output shaft of the motor, the connecting column is fixedly connected to the middle part of the lower surface of the rotating support plate, the upper end of the outer surface of the connecting column is slidably connected to the sliding support frame, the rear end of the lower surface of the sliding support frame is provided with a sliding opening, the connecting column is located inside the sliding opening, the front end of the sliding support frame is rotatably connected to the rotating frame, the upper end of the outer surface of the rotating frame is rotatably connected to the right circuit board pin shearing knife, and the lower end of the outer surface of the rotating frame is rotatably connected to the left circuit board pin shearing knife, which can perform automatic shearing and automatically advance during shearing and automatically retract after shearing is completed, thereby avoiding interference of other pins on shearing and position adjustment.

[0010] Furthermore, the automatic retracting shearing mechanism also includes a left push frame and a right push frame. The middle end of the outer surface of the connecting column is rotatably connected to the right push frame, and the lower end of the outer surface of the connecting column is rotatably connected to the left push frame. The right push frame and the right circuit board pin shearing knife are located in the same plane, and the outer surface of the left push frame and the left circuit board pin shearing knife are located in the same plane, so automatic shearing can be performed.

[0011] Furthermore, the automatic retracting shearing mechanism also includes a connecting slide, a connecting slide is opened in the middle of the lower surface of the sliding support frame, a sliding connecting frame is fixedly connected to the middle of the middle end of the lower surface of the connecting frame, and the lower end of the sliding connecting frame is slidably connected to the inside of the connecting slide to provide sliding support.

[0012] Furthermore, a right fixed column is fixedly connected to the middle end of the lower surface of the right circuit board pin shearing knife, and a left fixed column is fixedly connected to the middle end of the lower surface of the left circuit board pin shearing knife. A spring is fixedly connected between the lower end of the right fixed column and the adjacent surface of the lower end of the left fixed column, so that automatic reset can be performed.

[0013] Furthermore, a D-shaped guide rail is provided on the lower surface of the rotating support plate, and a sliding column is fixedly connected to the rear end of the upper surface of the sliding support frame. The outer surface of the sliding column is slidably connected to the inside of the D-shaped guide rail, and the D-shaped guide rail is rotated to limit the position, so that the sliding support frame moves forward and backward, thereby realizing automatic advancement and retreat.

[0014] Furthermore, a double-axis cylinder is installed above the support plate, the lower end of the telescopic end of the double-axis cylinder is fixedly connected to the upper surface of the support plate, and the air inlet end of the double-axis cylinder is connected to the air delivery end of an external air compressor, and the height can be adjusted by the double-axis cylinder.

[0015] Furthermore, the upper end of the dual-axis cylinder is fixedly connected to a fixing frame, and the middle part of the upper surface of the fixing frame is fixedly connected to a screw connecting frame, which is convenient for connection with a driving device to perform position adjustment.

[0016] Furthermore, the upper surface of the fixing frame is provided with front-to-rear symmetrical sliding openings, the interior of the sliding openings are slidably connected with sliding columns, the lower ends of the sliding columns are fixedly connected to the upper surface of the support plate, and the upper ends of the sliding columns are fixedly connected to the limiting plates to provide sliding auxiliary support.

[0017] Compared with the prior art, the beneficial effects of the utility model are: the circuit board pin cutting device has the following advantages:

[0018] During the process of shearing the circuit board pins, the staff controls the motor to start through an external controller, the motor starts to drive the rotating support plate to rotate, the rotating support plate rotates the connecting column to rotate, the connecting column rotates to drive the left push frame and the right push frame to rotate, when the left push frame contacts the left circuit board pin shearing knife, and the right push frame contacts the right circuit board pin shearing knife, the left circuit board pin shearing knife and the right circuit board pin shearing knife make a rotational motion at the connection with the rotating frame, the rear ends of the left circuit board pin shearing knife and the right circuit board pin shearing knife move away from each other, making the front ends of the left circuit board pin shearing knife and the right circuit board pin shearing knife approach each other, thereby cutting the circuit board. The pins are cut off, and at the same time, during the rotation of the rotating support plate, the sliding column on the sliding support frame is slidably connected inside the D-shaped guide rail, and at the same time, the sliding support frame moves forward and backward under the limiting effect of the sliding connection frame on the sliding support frame. The sliding support frame moves forward to drive the right circuit board pin shearing knife and the left circuit board pin shearing knife to move forward, and the connecting slide and the slide are slid to avoid, so that shearing can be performed quickly, and at the same time, the right circuit board pin shearing knife and the left circuit board pin shearing knife can move forward during each shearing, and automatically retreat after the circuit board pin shearing is completed, thereby avoiding interference with the pin shearing by other circuit board pins. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a partial structural schematic diagram of the automatic retracting shearing mechanism of the utility model.

[0021] In the figure: 1 support plate, 2 connecting frame, 3 motor, 4 automatic retraction shearing mechanism, 41 rotating support plate, 42 connecting column, 43 left push frame, 44 right push frame, 45 sliding support frame, 46 connecting slide, 47 rotating frame, 48 right circuit board pin shearing knife, 49 left circuit board pin shearing knife, 5 sliding connecting frame, 6 right fixed column, 7 left fixed column, 8 spring, 9 double-axis cylinder, 10 fixed frame, 11 slide, 12 slide column, 13 limit plate, 14 screw connecting frame, 15 D-type guide rail. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-2, This embodiment provides a technical solution: a circuit board pin shearing device, including a support plate 1, a motor 3 and an automatic retracting shearing mechanism 4;

[0024] Support plate 1: a connecting frame 2 is fixedly connected to its lower surface, a double-axis cylinder 9 is installed on the upper side of the support plate 1, the lower end of the telescopic end of the double-axis cylinder 9 is fixedly connected to the upper surface of the support plate 1, the air inlet end of the double-axis cylinder 9 is connected to the air delivery end of the external air compressor, the upper end of the double-axis cylinder 9 is fixedly connected to a fixing frame 10, a screw connecting frame 14 is fixedly connected to the middle of the upper surface of the fixing frame 10, a front-to-back symmetrical sliding opening 11 is opened on the upper surface of the fixing frame 10, a sliding column 12 is slidably connected to the inside of the sliding opening 11, the lower end of the sliding column 12 is fixedly connected to the upper surface of the support plate 1, and the upper end of the sliding column 12 is fixedly connected to the limit plate 13;

[0025] Motor 3: It is fixedly connected to the rear end of the lower surface of the connecting frame 2, and the input end of the motor 3 is electrically connected to the output end of the external controller;

[0026] Automatic retraction shearing mechanism 4: it includes a rotating support plate 41, a connecting column 42, a sliding support frame 45, a rotating frame 47, a right circuit board pin shearing knife 48 and a left circuit board pin shearing knife 49, the rotating support plate 41 is fixedly connected to the lower end of the output shaft of the motor 3, the connecting column 42 is fixedly connected to the middle part of the lower surface of the rotating support plate 41, the upper end of the outer surface of the connecting column 42 is slidably connected with the sliding support frame 45, the rear end of the lower surface of the sliding support frame 45 is provided with a sliding opening, the connecting column 42 is located inside the sliding opening, the front end of the sliding support frame 45 is rotatably connected with the rotating frame 47, the upper end of the outer surface of the rotating frame 47 is rotatably connected with the right circuit board pin shearing knife 48, the lower end of the outer surface of the rotating frame 47 is rotatably connected with the left circuit board pin shearing knife 49, the automatic retraction shearing mechanism 4 The cutting mechanism 4 also includes a left push frame 43 and a right push frame 44. The middle end of the outer surface of the connecting column 42 is rotatably connected to the right push frame 44, and the lower end of the outer surface of the connecting column 42 is rotatably connected to the left push frame 43. The right push frame 44 and the right circuit board pin shearing knife 48 are located in the same plane, and the outer surface of the left push frame 43 and the left circuit board pin shearing knife 49 are located in the same plane. The automatic retraction shearing mechanism 4 also includes a connecting slide 46. A connecting slide 46 is provided in the middle part of the lower surface of the sliding support frame 45. A sliding connecting frame 5 is fixedly connected to the middle part of the middle end of the lower surface of the connecting frame 2. The lower end of the sliding connecting frame 5 is slidably connected to the inside of the connecting slide 46. The middle end of the lower surface of the right circuit board pin shearing knife 48 is fixedly connected to the right fixed column 6. The middle end of the lower surface of the left circuit board pin shearing knife 49 The left end is fixedly connected with a left fixed column 7, a spring 8 is fixedly connected between the lower end of the right fixed column 6 and the lower end of the left fixed column 7, a D-shaped guide rail 15 is provided on the lower surface of the rotating support plate 41, and a sliding column is fixedly connected to the rear end of the upper surface of the sliding support frame 45, and the outer surface of the sliding column is slidably connected to the inside of the D-shaped guide rail 15. In the process of shearing the circuit board pins, the staff controls the motor 3 to start through an external controller, and the motor 3 starts to drive the rotating support plate 41 to rotate, and the rotating support plate 41 rotates the connecting column 42 to rotate, and the connecting column 42 rotates to drive the left push frame 43 and the right push frame 44 to rotate. When the left push frame 43 contacts the left circuit board pin shearing knife 49, and the right push frame 44 contacts the right circuit board pin shearing knife 48, the left circuit board pin shearing knife 49 is The left and right circuit board pin shearing knives 48 rotate at the connection with the rotating frame 47, and the rear ends of the left and right circuit board pin shearing knives 49 and 48 move away from each other so that the front ends of the left and right circuit board pin shearing knives 49 and 48 are close to each other, thereby cutting off the circuit board pins. At the same time, during the rotation of the rotating support plate 41, the sliding column on the sliding support frame 45 is slidably connected inside the D-shaped guide rail 15, and at the same time, under the limiting action of the sliding connecting frame 5 on the sliding support frame 45, the sliding support frame 45 moves back and forth, and the sliding support frame 45 moves forward to drive the right and left circuit board pin shearing knives 48 and 49 to move forward, and the connecting sliding opening 46 and the sliding opening slide to avoid each other, thereby quickly cutting.At the same time, the right circuit board pin shearing knife 48 and the left circuit board pin shearing knife 49 can move forward each time they are sheared, and automatically retreat after the shearing is completed, thereby preventing other circuit board pins from interfering with the pin shearing.

[0027] The working principle of a circuit board pin shearing device provided by the utility model is as follows: during the circuit board production process, the staff controls the motor 3 to start through the external controller, the motor 3 starts to drive the rotating support plate 41 to rotate, the rotating support plate 41 rotates the connecting column 42 to rotate, the connecting column 42 rotates to drive the left push frame 43 and the right push frame 44 to rotate, when the left push frame 43 contacts the left circuit board pin shearing knife 49, and the right push frame 44 contacts the right circuit board pin shearing knife 48, the left circuit board pin shearing knife 49 and the right circuit board pin shearing knife 48 make a rotation movement at the connection with the rotating frame 47, the rear ends of the left circuit board pin shearing knife 49 and the right circuit board pin shearing knife 48 move away from each other so that the front ends of the left circuit board pin shearing knife 49 and the right circuit board pin shearing knife 48 are close to each other, thereby cutting off the circuit board pins, and at the same time, during the rotation of the rotating support plate 41, the sliding support frame 4 The sliding column on 5 is slidably connected inside the D-shaped guide rail 15, and at the same time, the sliding support frame 45 moves forward and backward under the limiting effect of the sliding connecting frame 5 on the sliding support frame 45, and the sliding support frame 45 moves forward to drive the right circuit board pin shearing knife 48 and the left circuit board pin shearing knife 49 to move forward, and the connecting slide 46 and the slide are slid to avoid, so that shearing can be performed quickly. At the same time, the right circuit board pin shearing knife 48 and the left circuit board pin shearing knife 49 can be moved forward during each shearing, and automatically retreat after the shearing is completed, thereby avoiding interference of other circuit board pins on the pin shearing. During installation, the screw rod connecting frame 14 is installed on the driving screw rod. When adjusting the height, air is supplied to the double-axis cylinder 9 through an external air compressor, so that the telescopic end of the double-axis cylinder 9 moves downward, thereby driving the right circuit board pin shearing knife 48 and the left circuit board pin shearing knife 49 to move downward.

[0028] It is worth noting that the motor 3 disclosed in the above embodiments can be JGA25-310.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A circuit board pin cutting device, characterized in that: It comprises a support plate (1), a motor (3) and an automatic retracting shearing mechanism (4); Support plate (1): a connecting frame (2) is fixedly connected to its lower surface; The motor (3) is fixedly connected to the rear end of the lower surface of the connecting frame (2), and the input end of the motor (3) is electrically connected to the output end of the external controller; The automatic retracting shearing mechanism (4) comprises a rotating support plate (41), a connecting column (42), a sliding support frame (45), a rotating frame (47), a right circuit board pin shearing knife (48) and a left circuit board pin shearing knife (49), wherein the rotating support plate (41) is fixedly connected to the lower end of the output shaft of the motor (3), the connecting column (42) is fixedly connected to the middle part of the lower surface of the rotating support plate (41), the upper end of the outer surface of the connecting column (42) is slidably connected to the sliding support frame (45), the rear end of the lower surface of the sliding support frame (45) is provided with a sliding opening, the connecting column (42) is located inside the sliding opening, the front end of the sliding support frame (45) is rotatably connected to the rotating frame (47), the upper end of the outer surface of the rotating frame (47) is rotatably connected to the right circuit board pin shearing knife (48), and the lower end of the outer surface of the rotating frame (47) is rotatably connected to the left circuit board pin shearing knife (49).

2. A circuit board pin cutting device according to claim 1, characterized in that: The automatic retractable shearing mechanism (4) further comprises a left push frame (43) and a right push frame (44); the middle end of the outer surface of the connecting column (42) is rotatably connected to the right push frame (44); the lower end of the outer surface of the connecting column (42) is rotatably connected to the left push frame (43); the right push frame (44) and the right circuit board pin shearing knife (48) are located in the same plane; and the outer surface of the left push frame (43) and the left circuit board pin shearing knife (49) are located in the same plane.

3. A circuit board pin cutting device according to claim 1, characterized in that: The automatic retracting shearing mechanism (4) further comprises a connecting slide (46), a connecting slide (46) is provided in the middle of the lower surface of the sliding support frame (45), a sliding connecting frame (5) is fixedly connected to the middle of the lower surface of the connecting frame (2), and the lower end of the sliding connecting frame (5) is slidably connected to the inside of the connecting slide (46).

4. A circuit board pin cutting device according to claim 1, characterized in that: A right fixing column (6) is fixedly connected to the middle end of the lower surface of the right circuit board pin shearing knife (48), a left fixing column (7) is fixedly connected to the middle end of the lower surface of the left circuit board pin shearing knife (49), and a spring (8) is fixedly connected between the lower ends of the right fixing column (6) and the lower ends of the left fixing column (7).

5. A circuit board pin cutting device according to claim 1, characterized in that: The lower surface of the rotating support plate (41) is provided with a D-shaped guide rail (15), and the rear end of the upper surface of the sliding support frame (45) is fixedly connected with a sliding column, and the outer surface of the sliding column is slidably connected to the inside of the D-shaped guide rail (15).

6. A circuit board pin cutting device according to claim 1, characterized in that: A double-shaft cylinder (9) is mounted above the support plate (1); the lower end of the telescopic end of the double-shaft cylinder (9) is fixedly connected to the upper surface of the support plate (1); and the air inlet end of the double-shaft cylinder (9) is connected to the air delivery end of an external air compressor.

7. A circuit board pin cutting device according to claim 6, characterized in that: The upper end of the dual-axis cylinder (9) is fixedly connected to a fixing frame (10), and the middle portion of the upper surface of the fixing frame (10) is fixedly connected to a screw rod connecting frame (14).

8. A circuit board pin cutting device according to claim 7, characterized in that: The upper surface of the fixing frame (10) is provided with a front-to-rear symmetrical sliding opening (11), the interior of the sliding opening (11) is slidably connected with a sliding column (12), the lower end of the sliding column (12) is fixedly connected to the upper surface of the support plate (1), and the upper end of the sliding column (12) is fixedly connected to the limit plate (13).

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