Shearing structure of spring machine

Abstract

The utility model provides a shearing structure of a spring machine, which comprises a mounting seat, a motor arranged at one end of the mounting seat, an eccentric wheel arranged at the other end of the mounting seat and connected with the motor, a shearing part arranged on the mounting seat and used for shearing spring steel, and a fixing seat used for fixing the whole shearing structure, and the shearing part comprises a fixed shear, a movable shear, a rotating shaft for connecting the movable shear and the fixed shear, and an abutting wheel which is arranged at the tail part of the movable shear and abuts against the eccentric wheel. As the motor drives the eccentric wheel to drive the movable shear to deflect up and down in a reciprocating manner, spring steel is cut off; the reset wheel is always attached to the outer wheel face of the eccentric wheel, the movable shear is reset through rotation of the eccentric wheel, and stable shearing of the movable shear is guaranteed. And a bolt is arranged on the fixing block, the shearing block and the fixing block are fixed through a limiting sliding block and a limiting sliding groove, the shearing blocks with spring steel containing grooves of different sizes can be replaced according to spring steel of different diameters, and the applicability of the whole shearing structure is wider.

Description

Technical Field

[0001] The utility model relates to a shearing structure of a spring machine. Background Art

[0002] A spring machine is a processing machine that produces springs and can bend spring wires into shape. When the spring wire is bent into a certain shape, it needs to be cut. For some spring steels with smaller diameters, the shearing knife on the spring machine can easily cut it off. However, when processing some spring steels with larger diameters, ordinary shearing knives and shearing forces cannot cut it off, resulting in a bent product that cannot be disconnected from the previous product, and thus cannot be processed into a complete and independent product. The staff is required to manually cut the connection between the two products, which greatly reduces the work efficiency and increases the labor intensity of the staff. At present, in response to the above situation, some processing units will install a shearing mechanism on the spring machine to shear spring steels with larger diameters. However, this shearing mechanism uses tension springs to reset the movable shear. When shearing spring steels with larger diameters, the eccentric shear wheel cannot be reset by spring force alone, thereby affecting the next shearing work. In addition, the existing shearing mechanism has certain restrictions on the diameter of spring steel. If the diameter exceeds a certain value, manual shearing can only be used. Utility Model Content

[0003] The utility model mainly solves the technical problems existing in the prior art, thereby providing a shearing structure of a spring machine with a simple structure, applicable to springs of various diameters and capable of stable reset of a movable shear.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A shearing structure of a spring machine comprises a mounting seat, a motor arranged at one end of the mounting seat, an eccentric wheel arranged at the other end of the mounting seat and connected to the motor, a shearing part arranged on the mounting seat for shearing spring steel, and a fixed seat for fixing the entire shearing structure, the shearing part comprises a fixed shear and a movable shear, a rotating shaft for connecting the movable shear and the fixed shear, a close-fitting wheel arranged at the tail of the movable shear and abutting against the eccentric wheel, a reset wheel mounting arm arranged on the side wall of the movable shear, a reset wheel arranged at one end of the reset wheel mounting arm and abutting against the eccentric wheel, a mounting notch arranged at the same end of the movable shear and the fixed shear, and a shearing block and a fixed block arranged in the mounting notch, the fixed block being located above the shearing block, two cylindrical pins being vertically arranged on the top of the fixed block, two parallel limiting sliders being arranged at the bottom of the fixed block, and two limiting sliding grooves corresponding to the limiting sliders being arranged on the contact surface between the shearing block and the fixed block.

[0006] Preferably, the fixed shears are fixed to a fixed seat, and the fixed shears are fixed to a side wall of the mounting seat.

[0007] Preferably, a round hole corresponding to the latch is provided at the top of the installation slot.

[0008] Preferably, the movable shears can rotate around a rotation axis, the rotation axis is close to the installation notch, and the rotation axis is far away from the abutting wheel.

[0009] Preferably, the fixed shear and the movable shear are flush with one end away from the eccentric wheel, and a spring steel placement groove is provided outwardly on the shear block, and the shape of the spring steel placement groove is adapted to the shape of the spring steel.

[0010] Preferably, the cross-sectional shapes of the fixing block and the shearing block are both trapezoidal, one side of the fixing block fits with one side of the shearing block, and the shearing block is pressed tightly into the installation notch by the trapezoidal slopes of the fixing block and the shearing block.

[0011] The shearing structure of the spring machine of the utility model has the following beneficial effects: since the shearing structure of the spring machine drives the movable shear to swing back and forth up and down through the motor-driven eccentric wheel, the spring steel is sheared; the reset wheel is always in contact with the outer wheel surface of the eccentric wheel, and the movable shear is reset by the rotation of the eccentric wheel, thereby avoiding the instability of the movable shear being reset by the tension spring, and ensuring the stable shearing of the movable shear; a latch is arranged on the fixed block, and the shearing block and the fixed block are fixed by a limiting slider and a limiting slot, thereby ensuring that the shearing block will not deviate during the shearing process, and at the same time, the shearing block with spring steel placement slots of different sizes can be replaced according to spring steels of different diameters, so that the applicability of the entire shearing structure is wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a structural schematic diagram of a shearing structure of a spring machine of the utility model;

[0014] Figure 2 It is a structural schematic diagram of a shear block of a shear structure of a spring machine of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the eccentric wheel of the shearing structure of a spring machine of the utility model;

[0016] Figure 4 This is a schematic diagram of the fixed block structure of the shearing structure of a spring machine of the utility model;

[0017] Figure 5 It is a schematic diagram of the shear block structure of a shear structure of a spring machine of the utility model;

[0018] In the figure: 1. motor; 2. mounting seat; 3. eccentric wheel; 4. reset wheel; 5. close wheel; 6. fixed shear; 7. movable shear; 8. reset wheel mounting arm; 9. rotating shaft; 10. fixed seat; 11. shear block; 12. fixed block; 13. spring steel placement groove; 14. latch; 15. limit slider; 16. limit slide groove. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] like Figures 1 to 5 As shown, the utility model adopts the following technical scheme: a shearing structure of a spring machine, including a mounting seat 2, and a motor 1 arranged at one end of the mounting seat 2, and an eccentric wheel 3 arranged at the other end of the mounting seat 2 and connected to the motor 1, and a shearing part arranged on the mounting seat 2 for shearing spring steel, and a fixed seat 10 for fixing the entire shearing structure, the shearing part includes a fixed shear 6 and a movable shear 7, and a rotating shaft 9 for connecting the movable shear 7 and the fixed shear 6, and a close wheel 5 arranged at the tail of the movable shear 7 and abutting against the eccentric wheel 3, and a side wall of the movable shear 7 is arranged The reset wheel mounting arm 8 on the reset wheel mounting arm 8, and the reset wheel 4 arranged at one end of the reset wheel mounting arm 8 and abutting against the eccentric wheel 3, and the mounting notch arranged at the same end of the movable shear 7 and the fixed shear 6, and the shear block 11 and the fixed block 12 arranged in the mounting notch, the fixed block 12 is located above the shear block 11, and two cylindrical latches 14 are vertically arranged on the top of the fixed block 12, and two parallel limit sliders 15 are arranged on the bottom of the fixed block 12, and two limit slide grooves 16 corresponding to the limit slider 15 are arranged on the contact surface between the shear block 11 and the fixed block 12.

[0021] The fixed shears 6 are fixed to the fixed seat 10 , and the fixed shears 6 are fixed to the side wall of the mounting seat 2 .

[0022] A round hole corresponding to the latch pin 14 is arranged at the top of the installation slot.

[0023] The movable shears 7 can rotate around a rotating shaft 9 , wherein the rotating shaft 9 is close to the mounting notch and away from the abutting wheel 5 .

[0024] The fixed shear 6 and the movable shear 7 are flush with one end away from the eccentric wheel 3, and a spring steel placement groove 13 is arranged outwardly on the shear block 11, and the shape of the spring steel placement groove 13 is adapted to the shape of the spring steel.

[0025] The cross-sectional shapes of the fixing block 12 and the shearing block 11 are both trapezoidal, one side of the fixing block 12 fits with one side of the shearing block 11, and the shearing block 11 is pressed tightly into the installation notch by the trapezoidal slopes of the fixing block 12 and the shearing block 11.

[0026] The initial positions of the movable shear 7 and the fixed shear 6 are positions in which the two are parallel to each other, and the positions of the spring steel placement grooves 13 of the shear blocks 11 in the movable shear 7 and the fixed shear 6 correspond to each other. After the spring machine bends the spring steel into shape, the driving mechanism drives the shear structure to slide horizontally in the direction of the discharge port of the spring machine so that the shearing part is inserted into the shearing position of the discharge port of the spring machine. At this time, the spring steel at the discharge port is inserted into the spring steel placement grooves 13 of the movable shear 7 and the fixed shear 6, and the motor 1 drives the eccentric wheel 3 to rotate, and the eccentric wheel 3 drives the abutting wheel 5 on the movable shear 7 to lift. At the same time, the shear block 11 on the movable shear 7 is pressed down so that the positions of the two shear blocks 11 are relatively staggered, thereby cutting the spring steel, and the driving mechanism drives the shear structure to the discharge port of the spring machine. The spring machine is operated to process the next workpiece, and the motor 1 drives the eccentric wheel 3 to rotate, and the eccentric wheel 3 drives the reset wheel 4 on the reset wheel mounting arm 8 to press down. At the same time, the shear block 11 on the movable shear 7 is lifted, so that the positions of the spring steel placement grooves 13 of the two shear blocks 11 correspond to each other. The fixed block 12 is provided with a latch 14, and the latch 14 is aligned with the circular hole in the mounting groove. The shear block 11 and the fixed block 12 are fixed by a limiting slider 15 and a limiting slot 16, which ensures that the shear block will not deviate during the shearing process. For spring steels of different diameters, shear blocks with spring steel placement grooves 13 of different sizes are replaced, so that the applicability of the entire shear structure is wider.

[0027] The shearing structure of the spring machine of the utility model has the following beneficial effects: since the shearing structure of the spring machine drives the movable shear to swing back and forth up and down through the motor-driven eccentric wheel, the spring steel is sheared; the reset wheel is always in contact with the outer wheel surface of the eccentric wheel, and the movable shear is reset by the rotation of the eccentric wheel, thereby avoiding the instability of the movable shear being reset by the tension spring, and ensuring the stable shearing of the movable shear; a latch is arranged on the fixed block, and the shearing block and the fixed block are fixed by a limiting slider and a limiting slot, thereby ensuring that the shearing block will not deviate during the shearing process, and at the same time, the shearing block with spring steel placement slots of different sizes can be replaced according to spring steels of different diameters, so that the applicability of the entire shearing structure is wider.

[0028] It should be understood that in the claims and description of the utility model, all "including..." should be understood as an open-ended meaning, that is, its meaning is equivalent to "at least contains...", and should not be understood as a closed meaning, that is, its meaning should not be understood as "only includes...".

[0029] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A shearing structure of a spring machine, characterized in that: The invention comprises a mounting seat, a motor arranged at one end of the mounting seat, an eccentric wheel arranged at the other end of the mounting seat and connected to the motor, a shearing part arranged on the mounting seat for shearing spring steel, and a fixed seat for fixing the entire shearing structure, the shearing part comprises a fixed shear and a movable shear, a rotating shaft for connecting the movable shear and the fixed shear, a close-fitting wheel arranged at the tail of the movable shear and abutting against the eccentric wheel, a reset wheel mounting arm arranged on the side wall of the movable shear, a reset wheel arranged at one end of the reset wheel mounting arm and abutting against the eccentric wheel, a mounting notch arranged at the same end of the movable shear and the fixed shear, and a shearing block and a fixed block arranged in the mounting notch, the fixed block being located above the shearing block, two cylindrical pins being vertically arranged on the top of the fixed block, two parallel limit sliders being arranged at the bottom of the fixed block, and two limit sliding grooves corresponding to the limit sliders being arranged on the contact surface between the shearing block and the fixed block.

2. A shearing structure of a spring machine according to claim 1, characterized in that: The fixed shears are fixed to the fixed seat, and the fixed shears are fixed on the side wall of the mounting seat.

3. A shearing structure of a spring machine according to claim 1, characterized in that: A round hole corresponding to the latch is arranged at the top of the installation notch.

4. A shearing structure of a spring machine according to claim 1, characterized in that: The movable shears can rotate around a rotating shaft, the rotating shaft is close to the mounting notch, and the rotating shaft is far away from the abutting wheel.

5. The shearing structure of a spring machine according to claim 1, characterized in that: The fixed shear and the movable shear are flush with one end away from the eccentric wheel, and a spring steel placement groove is arranged outwardly on the shear block, and the shape of the spring steel placement groove is adapted to the shape of the spring steel.

6. A shearing structure of a spring machine according to claim 1, characterized in that: The cross-sectional shapes of the fixing block and the shearing block are both trapezoidal, one side of the fixing block fits with one side of the shearing block, and the shearing block is pressed tightly into the installation notch through the trapezoidal slopes of the fixing block and the shearing block.

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