Base pin shearing mechanism of vertical plug-in machine

Abstract

The utility model relates to a base pin shearing mechanism of a vertical plug-in machine. The base pin shearing mechanism comprises a guide ring seat, a shearing assembly and a gear motor, the shearing assembly is composed of a plurality of shear petals, and the shear petals are driven by the deflection ring to move synchronously to form a disc-shaped structure to shear pins in the ring. The flywheel disc is in linkage with the deflection ring through a connecting rod, reciprocating deflection motion of the shear petals is achieved under driving of the gear motor, and the shear petals automatically return after shearing is completed. According to the mechanism, the shearing moment is increased through the large-mass flywheel disc, the shearing process is smooth and stable, the mechanism can be perfectly matched with the feeding and discharging or material conveying rhythm of the vertical plug-in machine, and the shearing efficiency and the device stability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic component processing equipment, and particularly relates to a foot trimming mechanism for the base of a vertical plug-in machine. Background Art

[0002] In the production process of electronic components, a plug-in machine is used to insert the pins of components into a circuit board and then trim the pins. Traditional foot trimming mechanisms usually use two blades for trimming or perform trimming through opposite movements. However, these traditional trimming methods have some problems in practical applications, such as the trimming process is not smooth enough and the stability is insufficient, resulting in poor trimming quality, especially obvious in the processing of high-density and multi-pin components. In addition, the existing trimming devices often cannot cooperate well with the loading and unloading or material conveying rhythm of the plug-in machine, resulting in a decrease in production efficiency.

[0003] In view of this, in order to study and improve the existing problems, a foot trimming mechanism for the base of a vertical plug-in machine is provided to solve the problems of unstable trimming process, low trimming efficiency and difficulty in matching the loading and unloading rhythm of the plug-in machine at present. The purpose is to improve the trimming quality, production efficiency and device stability through this technology. Summary of the Utility Model

[0004] The present utility model aims to solve the technical problems existing in the prior art or related technologies. For this purpose, the technical solution adopted by the present utility model is as follows: A base pin-cutting mechanism for a vertical plug-in machine, comprising a guide ring seat, a shearing assembly, and a reduction motor; the reduction motor is fixed to one side of the guide ring seat, and its output end is connected to a large-mass flywheel disc; a plurality of arc guide grooves and guide pins are provided on the surface of the guide ring seat, the arc guide grooves and the guide pins are located on the same ring and are alternately distributed, the center of the arc guide grooves is concentric with the center of the guide ring seat, and both ends of the arc guide grooves extend to the guide pins on both sides; the shearing assembly includes a deflection ring and a plurality of scissor blades, both the deflection ring and the guide ring seat are annular surface through-hole structures for the insertion of pins; a plurality of circumferentially distributed sliding shaft rods are evenly distributed on the bottom surface of the deflection ring, the scissor blades are in a fan-shaped structure and a shaft hole is provided at one corner of the surface, and the scissor blades are rotatably sleeved on the surface of the sliding shaft rods; the bottom ends of the sliding shaft rods are slidably sleeved inside the arc guide grooves, an arc-shaped guiding groove is provided on the bottom surface of the scissor blades, the guiding groove is slidably sleeved on the surface of the guide pins, and shearing edges are provided on both sides of the scissor blades; both ends of a connecting rod are movably connected to the surface of the flywheel disc and the surface of the deflection ring respectively, and the connection points deviate from the centers of the flywheel disc and the deflection ring; wherein, when the reduction motor drives the flywheel disc to rotate, the deflection ring is driven by the connecting rod to perform a reciprocating deflection movement on the surface of the guide ring seat, the deflection amount is less than or equal to the central angle of the arc of the arc guide groove, when the sliding shaft rods deflect and slide along the inside of the arc guide grooves, the scissor blades are driven by the guide pins and the guiding grooves to deflect, so that one corner of the scissor blades moves towards the center of the deflection ring, and then the pin-cutting movement of the base of the vertical plug-in machine is performed under the combination of a plurality of scissor blades, and automatically rotates and opens after the shearing is completed, and this movement is repeated.

[0005] In a preferred example, the present utility model can be further configured as: The flywheel disc is a large-mass flywheel structure, which is used to increase the working torque, improve the shearing force and the system stability.

[0006] By adopting the above technical solution, the reduction motor drives the large-mass flywheel disc to rotate, and through the linkage of the connecting rod, the deflection ring and the scissor blades are pushed to perform a reciprocating deflection movement, so as to realize the shearing operation of the pins inside the ring. Due to the large-mass characteristic of the flywheel disc, the torque required in the shearing process is increased, making the shearing process more stable and effective.

[0007] In a preferred example, the present utility model can be further configured as: The number of scissor blades is 3 to 6, and the number of the arc guide grooves, the guide pins and the sliding shaft rods is adapted to and corresponds to the number of the scissor blades one by one.

[0008] By adopting the above technical solution, a plurality of scissor blades move synchronously under the deflection movement to form a disc-shaped shearing structure. This design ensures the uniformity and synchronism of the shearing action, and effectively solves the instability problem of the traditional shearing method when dealing with multi-pin components.

[0009] In a preferred example, the present utility model can be further configured as follows: the central angle of the arc guide groove is negatively correlated with the number of scissor blades, that is, the fewer the number of arc guide grooves, the larger the central angle thereof.

[0010] By adopting the above technical solution, the design of the arc guide groove can flexibly adjust the movement range of the shearing assembly to meet the shearing requirements of different component pins, making the shearing action more flexible and adaptable.

[0011] In a preferred example, the present utility model can be further configured as follows: when the scissor blades are in the closed state, the sum of their surface areas is equal to the outer diameter area of the deflection ring.

[0012] By adopting the above technical solution, when multiple scissor blades are in the closed state, the sum of their surface areas covers the outer diameter area of the deflection ring, thus ensuring the integrity and accuracy of pin shearing and avoiding the situation of missed shearing or incomplete shearing during the shearing process.

[0013] The beneficial effects achieved by the present utility model are as follows:

[0014] 1. In the present utility model, through the synchronous movement of multiple scissor blades in the shearing assembly under deflection movement, a disc shape is formed to shear the pins inside the ring, realizing a brand-new shearing method. Different from the traditional scissor movement or opposite movement, this design makes the shearing movement smoother and significantly improves the stability of the device during the pin shearing process.

[0015] 2. In the present utility model, through the reciprocating deflection movement of the scissor blades, the automatic opening and closing of the scissors are realized, effectively coordinating with the working intervals of the loading and unloading or material conveying of the vertical insertion machine. This intermittent movement ensures the continuity and stability of the shearing process, and improves the working efficiency and reliability of the overall device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 is a schematic diagram of the open state of an embodiment of the present utility model;

[0018] Figure 3 is a schematic diagram of the overall exploded structure of an embodiment of the present utility model;

[0019] Figure 4 is a schematic diagram of the bottom surface structure of the deflection ring and the flywheel disc of an embodiment of the present utility model;

[0020] Figure 5 is a schematic diagram of the surface structure of the scissor blades of an embodiment of the present utility model;

[0021] Figure 6Schematic diagram of the bottom surface structure of the scissors blade for an embodiment of the present utility model.

[0022] Reference numerals:

[0023] 100, guide ring seat; 110, arc guide groove; 120, guide pin;

[0024] 200, shearing assembly; 210, deflection ring; 220, scissors blade; 211, sliding shaft rod; 221, shaft hole; 222, shearing edge; 223, guiding groove;

[0025] 300, reduction motor; 310, flywheel disc; 320, connecting rod. Detailed implementation manners

[0026] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in combination with specific implementation manners and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments may be combined with each other. These descriptions are only exemplary and are not intended to limit the scope of the present utility model.

[0027] Combined with Figures 1-6 As shown, a pin trimming mechanism for the base of a vertical plug-in machine provided by the present utility model includes a guide ring seat 100, a shearing assembly 200 and a reduction motor 300. The reduction motor 300 is fixedly installed on one side of the guide ring seat 100, and its output end is connected to a large-mass flywheel disc 310. A plurality of arc guide grooves 110 and guide pins 120 are evenly distributed on the surface of the guide ring seat 100. The arc guide grooves 110 and the guide pins 120 are located on the same circular ring, and the center of the arc guide grooves 110 is concentric with the center of the guide ring seat 100. Both ends of the arc guide grooves 110 extend to both sides of the guide pins 120, and are used to limit the deflection angle when the scissors blade 220 slides.

[0028] The shearing assembly 200 includes a deflection ring 210 and a plurality of scissors blades 220. Both the deflection ring 210 and the guide ring seat 100 are annular surface through-hole structures for the insertion of pins. A plurality of sliding shaft rods 211 are evenly distributed on the bottom surface of the deflection ring 210, and these sliding shaft rods 211 are slidably sleeved in the arc guide grooves 110 of the guide ring seat 100. The scissors blade 220 has a fan-shaped structure, and the number is 3 to 6. A shaft hole 221 is opened at one corner of the surface, and it is rotatably sleeved on the surface of the sliding shaft rod 211. An arc-shaped guiding groove 223 is also opened on the bottom surface of the scissors blade 220, and this guiding groove 223 is slidably sleeved on the surface of the guide pin 120.

[0029] Both ends of the connecting rod 320 are movably connected to the surfaces of the flywheel disc 310 and the deflection ring 210 respectively, and the connection points deviate from the centers of the flywheel disc 310 and the deflection ring 210. When the reduction motor 300 drives the flywheel disc 310 to rotate, the deflection ring 210 is linked by the connecting rod 320 to make a reciprocating deflection motion on the surface of the guide ring seat 100, and the deflection amount is less than or equal to the central angle of the arc guide groove 110. When the sliding shaft rod 211 deflects and slides along the inner side of the arc guide groove 110, the scissor blades 220 are linked by the guide pin 120 and the guide groove 223 to deflect, so that one corner of the scissor blades 220 moves towards the center of the deflection ring 210, and then the pin cutting motion of the base of the vertical insertion machine is carried out under the combination of multiple scissor blades 220.

[0030] The working principle and usage process of the present utility model:

[0031] Start the shearing device: When the reduction motor 300 starts, the flywheel disc 310 begins to rotate. Since the flywheel disc 310 has a large mass, a large torque is generated during rotation, thus ensuring the stability and sufficient shearing force during the shearing process.

[0032] Drive the movement of the shearing assembly: The flywheel disc 310 drives the deflection ring 210 to make a reciprocating deflection motion through the connecting rod 320, and the sliding shaft rod 211 slides in the arc guide groove 110, so that the scissor blades 220 form a disc-shaped shearing structure during the deflection motion.

[0033] Perform the shearing operation: When multiple scissor blades 220 are closed, the sum of the surface areas of the scissor blades 220 is equal to the outer diameter area of the deflection ring 210, and the combined complete disc-shaped structure is similar to the closing method of a guillotine, thereby realizing the precise shearing of the pins inside the ring.

[0034] Automatic return: After the shearing is completed, the reduction motor 300 drives the deflection ring 210 to continue to deflect, so that the scissor blades 220 are automatically returned through the action of the guide pin 120 and the guide groove 223, and are ready for the next shearing operation.

[0035] Repeat the action: The above-mentioned motion cycle continues to perform, realizing continuous intermittent shearing work, and perfectly matching the feeding or material conveying rhythm of the vertical insertion machine.

[0036] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0037] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A base trimming mechanism for a vertical insertion machine, characterized in that, It includes a guide ring seat (100), a shearing component (200) and a reduction motor (300); The reduction motor (300) is fixed to one side of the guide ring seat (100), and its output end is connected to a large-mass flywheel disk (310); A number of arc guide grooves (110) and guide pins (120) are provided on the surface of the guide ring seat (100). The arc guide grooves (110) and the guide pins (120) are located on the same ring and are alternately distributed. The center of the arc guide grooves (110) is concentric with the center of the guide ring seat (100), and both ends of the arc guide grooves (110) extend to the guide pins (120) on both sides; The shearing component (200) includes a deflection ring (210) and a number of scissor blades (220). Both the deflection ring (210) and the guide ring seat (100) are annular surface through-hole structures for the insertion of pins; A number of circumferentially distributed sliding shaft rods (211) are evenly distributed on the bottom surface of the deflection ring (210). The scissor blades (220) are in a fan-shaped structure, and a shaft hole (221) is opened at one corner of the surface, and the scissor blades are rotatably sleeved on the surface of the sliding shaft rods (211); The bottom end of the sliding shaft rod (211) is slidably sleeved inside the arc guide groove (110). An arc-shaped guide groove (223) is opened on the bottom surface of the scissor blade (220), and the guide groove (223) is slidably sleeved on the surface of the guide pin (120). Shearing edges (222) are provided on both sides of the scissor blade (220); The flywheel disk (310) is movably connected to the deflection ring (210) through a connecting rod (320). Both ends of the connecting rod (320) are movably connected to the surfaces of the flywheel disk (310) and the deflection ring (210) respectively, and the connection points deviate from the centers of the flywheel disk (310) and the deflection ring (210); Among them, when the reduction motor (300) drives the flywheel disk (310) to rotate, the deflection ring (210) is driven through the connecting rod (320) to make a reciprocating deflection movement on the surface of the guide ring seat (100). The deflection amount is less than or equal to the central angle of the arc guide groove (110). When the sliding shaft rod (211) deflects and slides along the inside of the arc guide groove (110), the scissor blades (220) are driven to deflect by the guide pin (120) and the guide groove (223), so that one corner of the scissor blade (220) moves towards the center of the deflection ring (210). Furthermore, under the combination of multiple scissor blades (220), the pin-cutting movement of the base of the vertical plug-in machine is carried out, and it automatically rotates and opens after the shearing is completed, repeating this movement.

2. The foot trimming mechanism for the base of a vertical insertion machine according to claim 1, wherein The flywheel disk (310) is a large-mass flywheel structure, which is used to increase the working torque, improve the shearing force and the system stability.

3. The base trimming mechanism of a vertical plug-in machine according to claim 1, characterized in that, The number of the scissor blades (220) is 3 to 6, and the numbers of the arc guide grooves (110), the guide pins (120) and the sliding shaft rods (211) are adapted to the number of the scissor blades (220) and correspond one by one.

4. The leg trimming mechanism of the base of a vertical plug-in machine according to claim 1, characterized in that, The central angle of the arc guide groove (110) is negatively correlated with the number of the scissor blades (220), that is, the fewer the number of the arc guide grooves (110), the larger its central angle.

5. The leg cutting mechanism for the base of a vertical plug-in machine according to claim 1, characterized in that, The several scissor blades (220) are all in a fan-shaped structure, and in the closed state, the sum of the surface areas of the multiple scissor blades (220) is equal to the outer diameter area of the deflection ring (210).

6. The base trimming mechanism of a vertical insertion machine according to claim 1, characterized in that, The cutting edges (222) of the scissor blades (220) form a continuous cutting edge in the closed state for precisely shearing the pins inside the ring.

7. The foot trimming mechanism of the base of a vertical plug-in machine according to claim 1, characterized in that Both the deflection ring (210) and the guide ring seat (100) are in an annular structure and are provided with several through holes for the pins to be inserted for shearing operations.

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