Noise reduction mechanism for resetting of single shear

Abstract

The utility model discloses a noise reduction mechanism for resetting a single shear, which comprises a rack, an upper template, a lower template and a floating mechanism are arranged on the rack, fixed plates are arranged on two sides of the rack, stroke grooves are arranged on the fixed plates, and limiting pieces matched with the stroke grooves are arranged on the floating mechanism to limit the floating stroke of the floating mechanism. Telescopic buffering pieces are arranged on the upper side and the lower side of the limiting piece, one end of each buffering piece is connected to the fixing plate, and the other end of each buffering piece abuts against the limiting piece. According to the utility model, noise generated by collision, friction and the like between the floating mechanism and the fixed plate can be prevented by compressing and stretching the telescopic buffer piece in the process that the floating mechanism floats up and down, so that the noise reduction effect is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerically controlled busbar punching and shearing machines, and in particular relates to a noise reduction mechanism for single shear resetting. Background Art

[0002] Single shearing is a shearing method of CNC busbar punching and shearing machine. The single shearing mechanism is composed of a lower shear fixed on the upper end of the frame and an upper shear arranged above the frame and staggered with the lower shear. The upper shear moves downward and staggers with the lower shear to cut the copper bar. The shearing process is achieved by the floating mechanism driving the upper shear to move downward and reset. Since the single shearing method does not produce waste, it can improve the utilization rate of copper bar raw materials and reduce production costs. Therefore, single shearing has been widely used in the process of parts production.

[0003] However, during the shearing process, the position of the floating mechanism after resetting is required to be high, so a fixed point is used to ensure the position is accurate, and a large force is required to drive the floating mechanism to move up to the fixed point. Therefore, the resetting of the floating mechanism will cause a large decibel of noise. Therefore, a noise reduction mechanism for single shear resetting is more needed. Utility Model Content

[0004] The utility model provides a noise reduction mechanism for single shear resetting to solve at least one of the above technical problems.

[0005] The technical solution adopted by the utility model is: a noise reduction mechanism for single shear resetting, including a frame, an upper template, a lower template and a floating mechanism on the frame, fixed plates on both sides of the frame, a travel groove on the fixed plate, a limiter matched with the travel groove on the floating mechanism to limit the floating stroke of the floating mechanism, a retractable buffer is provided on the upper and lower sides of the limiter, one end of the buffer is connected to the fixed plate, and the other end is in stop contact with the limiter.

[0006] In a preferred embodiment, a shock-absorbing pad is provided on the inner wall of the travel groove and / or the limiting member.

[0007] In a preferred embodiment, the travel groove and the limit member are provided with mounting holes, and the shock-absorbing pad is provided with mounting protrusions that cooperate with the mounting holes.

[0008] In a preferred embodiment, the frame is further provided with a reset plate, the reset plate is located above the lower template, and a retractable reset member is provided below the reset plate so that the upper template moves downward to drive the reset plate to move downward.

[0009] In a preferred embodiment, the reset plate has a shock-absorbing pad.

[0010] In a preferred embodiment, the buffer member is a nitrogen spring, the one located above the limit member is a nitrogen noise reduction spring, and the one located below the limit member is a nitrogen return spring.

[0011] In a preferred embodiment, when the nitrogen noise reduction spring is at the maximum compression stroke, there is a gap between the upper end of the limit member and the upper end of the travel groove; when the nitrogen return spring is at the maximum compression stroke, there is a gap between the lower end of the limit member and the lower end of the travel groove.

[0012] In a preferred embodiment, a retractable support member is provided between the floating mechanism and the frame to determine the relative position of the floating mechanism and the frame.

[0013] In a preferred embodiment, the support member includes a first support body and a second support body, the first support body has a matching hole extending along its axial direction, the second support body extends into the matching hole, and a telescopic spring is provided between the first support body and the matching hole.

[0014] In a preferred embodiment, either the first supporting body or the second supporting body is connected to the floating mechanism, and the other one of the first supporting body and the second supporting body is connected to the frame.

[0015] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0016] 1. As a preferred embodiment of the utility model, the retractable buffer can prevent the noise generated by collision, friction, etc. between the floating mechanism and the fixed plate by means of compression and extension during the floating mechanism floating up and down, thereby achieving the effect of noise reduction. In addition, with the cooperation of the retractable buffer, during the process of the floating mechanism resetting after moving down, the compressed buffer located on the lower side will have a lifting effect on the floating mechanism during the process of restoring the deformation, thereby facilitating the resetting of the floating mechanism. At the same time, during the resetting of the floating mechanism, the buffer located on the upper side is compressed, thereby preventing the floating mechanism from directly colliding with the frame to generate noise.

[0017] 2. As a preferred embodiment of the present invention, the shock-absorbing pad located on the travel groove or the limit member can be made of rubber or silicone. After the limit member collides with the travel groove, direct contact between the metals can be avoided, thereby preventing the generation of noise. At the same time, the shock-absorbing pad also has a certain function of absorbing the force generated by the collision.

[0018] 3. As a preferred embodiment of the utility model, the support member can facilitate the positioning of the floating mechanism and the frame, and provide a limiting effect for the up and down floating of the floating mechanism. In addition, the floating of the floating mechanism can also be coordinated with the expansion and contraction of the telescopic spring to reduce the generation of noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of a three-dimensional structure of a preferred embodiment of the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the local enlarged structure of the middle A area;

[0022] Figure 3 This is a main structure front view of a preferred embodiment of the utility model;

[0023] Figure 4 for Figure 3 A schematic diagram of the local enlarged structure of the middle B area;

[0024] Figure 5 This is a schematic diagram of the structure of a reset plate according to a preferred embodiment of the utility model;

[0025] Figure 6 This is a schematic diagram of the matching structure of the fixing plate and the shock absorbing pad in a preferred embodiment of the utility model;

[0026] Figure 7 This is a schematic diagram of the support structure of a preferred embodiment of the utility model.

[0027] Reference numerals:

[0028] 1. Frame; 11. Fixed plate; 110. Travel slot;

[0029] 2. Put on the template;

[0030] 3. Download the template;

[0031] 4. Floating mechanism; 41. Limiting member; 42. Buffer member; 420. Nitrogen noise reduction spring; 421. Nitrogen return spring; 43. Shock-absorbing pad; 430. Mounting hole; 431. Mounting protrusion;

[0032] 5. Reset plate; 51. Reset member;

[0033] 6. Support member; 61. First support body; 62. Second support body; 63. Matching hole; 64. Telescopic spring; 65. Lubrication groove. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0036] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0039] When the single-shear CNC busbar punching and shearing machine is working, the main source of its noise is generated by the floating mechanism 4 during the floating process. In order to reduce the noise generated by the floating mechanism 4 during the floating process, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a noise reduction mechanism for single shear reset includes a frame 1, an upper template 2, a lower template 3 and a floating mechanism 4 are provided on the frame 1, the upper template 2 and the lower template 3 cooperate to realize the cutting of the copper bar, a fixed plate 11 is provided on both sides of the frame 1, a travel groove 110 is provided on the fixed plate 11, the length of the travel groove 110 is greater than the floating travel of the floating mechanism 4, a limiting member 41 is provided on the floating mechanism 4 to cooperate with the travel groove 110, the limiting member 41 can be a limiting plate, a part of the limiting plate extends into the travel groove 110, in the process of floating up and down of the floating mechanism 4, through the cooperation of the limiting plate and the travel groove 110, the floating travel of the floating mechanism 4 is only within the range of the travel groove 110, thereby limiting the floating travel of the floating mechanism 4. A retractable buffer 42 is provided on the upper and lower sides of the limiting member 41, one end of the buffer 42 is connected to the fixed plate 11, and the other end is in abutment contact with the limiting member 41. The retractable buffer 42 can prevent the noise generated by collision, friction, etc. between the floating mechanism 4 and the fixed plate 11 by compression and extension during the floating mechanism 4 floating up and down, thereby achieving the effect of noise reduction. In addition, with the cooperation of the retractable buffer 42, during the resetting process of the floating mechanism 4 after moving down, the compressed buffer 42 on the lower side will have a lifting effect on the floating mechanism 4 during the process of restoring the deformation, thereby facilitating the resetting of the floating mechanism 4. At the same time, during the resetting process of the floating mechanism 4, the buffer 42 on the upper side is compressed, thereby preventing the floating mechanism 4 from directly colliding with the frame 1 to generate noise.

[0040] Furthermore, the buffer member 42 is a nitrogen spring, the nitrogen noise reduction spring 420 is located above the limit member 41, and the nitrogen return spring 421 is located below the limit member 41. When the nitrogen noise reduction spring 420 is in the maximum compression stroke, there is a gap between the upper end of the limit member 41 and the upper end of the travel groove 110; when the nitrogen return spring 421 is in the maximum compression stroke, there is a gap between the lower end of the limit member 41 and the lower end of the travel groove 110.

[0041] Further, such as Figure 6As shown, a shock-absorbing pad 43 is provided on the inner wall of the travel groove 110 or the stopper 41. The shock-absorbing pad 43 is preferably connected in a detachable manner, so as to facilitate the replacement of the shock-absorbing pad 43. Specifically, the shock-absorbing pad 43 and the travel groove 110 or the stopper 41 can be connected in a manner that a mounting hole 430 is provided on the travel groove 110 and the stopper 41, and a mounting protrusion 431 is provided on the shock-absorbing pad 43 to match the mounting hole 430. The installation of the shock-absorbing pad 43 is completed by inserting the mounting protrusion 431 into the mounting hole 430. Alternatively, the shock-absorbing pad 43 has a certain degree of stretchability, and the shock-absorbing pad 43 is directly sleeved on the outer side of the travel groove 110 or the stopper 41. Alternatively, the shock-absorbing pad 43 has a binding rope or a connecting buckle, and the shock-absorbing pad 43 is wrapped around the travel groove 110 or the stopper 41. In addition, other connection methods can also be selected to achieve a detachable connection of the shock-absorbing pad 43. Furthermore, the shock-absorbing pad 43 located on the travel groove 110 or the limit member 41 can be made of rubber or silicone. After the limit member 41 collides with the travel groove 110, direct contact between the metals can be avoided, thereby preventing the generation of noise. At the same time, the shock-absorbing pad 43 also has a certain function of absorbing the force generated by the collision.

[0042] A preferred embodiment, as Figure 1 , Figure 3 , Figure 5 As shown, the frame 1 also has a reset plate 5, which is located above the lower template 3 and between the upper and lower templates 3. A retractable reset member 51 is provided under the reset plate 5. The reset member 51 can be a spring. When the upper template 2 moves downward and cooperates with the lower template 3 for shearing, the upper template 2 will press the copper bar downward, and the copper bar will move downward with the reset plate 5. At this time, the spring is compressed, thereby providing a certain amount of downward movement space for the cut copper bar. When the cutting is completed and the upper template 2 moves upward, the spring stretches and moves the reset plate 5 upward, thereby completing the reset of the reset plate 5. Through the cooperation of the reset plate 5, the upper template 2 and the lower template 3, the noise generated by metal collision cutting during copper bar cutting can be reduced, thereby reducing the overall noise of the single shear. Further, a shock-absorbing pad 43 can be set on the reset plate 5, and the connection method of the shock-absorbing pad 43 can refer to the cooperation method of the aforementioned shock-absorbing pad 43 with the travel groove 110 or the limit member 41.

[0043] A preferred embodiment, as Figure 3 , Figure 7As shown, there is a retractable support member 6 between the floating mechanism 4 and the frame 1 to determine the relative position of the floating mechanism 4 and the frame 1. The floating mechanism 4 is prevented from changing its relative position with the frame 1 during the process of floating up and down. Specifically, the support member 6 includes a first support body 61 and a second support body 62. The first support body 61 has a matching hole 63 extending along its axial direction, and the second support body 62 extends into the matching hole 63. There is a retractable spring 64 between the first support body 61 and the matching hole 63. Either the first support body 61 or the second support body 62 is connected to the floating mechanism 4, and the other of the two is connected to the frame 1. Furthermore, a lubrication groove 65 is provided on the wall of the matching hole 63, and lubrication oil is contained in the lubrication groove 65. When the floating mechanism 4 moves downward, the second support body 62 moves toward the first support body 61, so that the distance that the second support body 62 extends into the matching hole 63 of the first support body 61 becomes longer, and at the same time, the telescopic spring 64 is compressed, and the lubrication oil in the lubrication groove 65 can facilitate the movement of the second support body 62 toward the first support body 61, thereby preventing the noise generated by the friction between the first support body 61 and the second support body 62. When the floating mechanism 4 moves upward, the second support body 62 moves away from the first support body 61, and the telescopic spring 64 is extended to facilitate the movement of the second support body 62.

[0044] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0045] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0046] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A noise reduction mechanism for single shear reset, comprising a frame, an upper template, a lower template and a floating mechanism on the frame, characterized in that: The frame has fixed plates on both sides, the fixed plates have travel grooves, the floating mechanism has a limiter that cooperates with the travel groove to limit the floating stroke of the floating mechanism, and the limiter has retractable buffers on the upper and lower sides, one end of the buffer is connected to the fixed plate, and the other end is in abutment contact with the limiter.

2. The noise reduction mechanism for single shear reset according to claim 1, characterized in that: The inner wall of the travel groove and / or the limiting member are provided with a shock absorbing pad.

3. The noise reduction mechanism for single shear reset according to claim 2, characterized in that: The travel groove and the limiting member are provided with mounting holes, and the shock-absorbing pad is provided with mounting protrusions matched with the mounting holes.

4. The noise reduction mechanism for single shear resetting according to claim 1, characterized in that: The frame is also provided with a reset plate, which is located above the lower template, and a retractable reset member is provided below the reset plate, so that the upper template moves downward and drives the reset plate to move downward.

5. The noise reduction mechanism for single shear resetting according to claim 4, characterized in that: The reset plate is provided with a shock absorbing pad.

6. The noise reduction mechanism for single shear resetting according to claim 1, characterized in that: The buffer component is a nitrogen spring, the component located above the limit component is a nitrogen noise reduction spring, and the component located below the limit component is a nitrogen return spring.

7. The noise reduction mechanism for single shear reset according to claim 6, characterized in that: When the nitrogen noise reduction spring is at the maximum compression stroke, there is a gap between the upper end of the limiter and the upper end of the travel groove; when the nitrogen return spring is at the maximum compression stroke, there is a gap between the lower end of the limiter and the lower end of the travel groove.

8. The noise reduction mechanism for single shear resetting according to claim 1, characterized in that: A retractable support member is provided between the floating mechanism and the frame to determine the relative position of the floating mechanism and the frame.

9. The noise reduction mechanism for single shear reset according to claim 8, characterized in that: The support member includes a first support body and a second support body. The first support body has a matching hole extending along its axial direction. The second support body extends into the matching hole. A telescopic spring is provided between the first support body and the matching hole.

10. The noise reduction mechanism for single shear reset according to claim 9, characterized in that: Either one of the first supporting body and the second supporting body is connected to the floating mechanism, and the other one of the first supporting body and the second supporting body is connected to the frame.

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