Protective device for punching machine

Abstract

The utility model provides a protective device for a punching machine, which comprises a fixing ring arranged on the outer side of an output rod of a hydraulic telescopic rod, a height-adjustable protective mechanism is arranged on the lower portion of the fixing ring, the protective mechanism comprises an elastic component arranged on the lower portion of the fixing ring, a baffle is arranged on the lower portion of the elastic component, and a protective pad is arranged on the lower portion of the baffle. The upper pressing head can be effectively protected through the protection mechanism with the adjustable height, fragments punched away in the punching process are prevented from splashing to hurt people, operation is safer and more convenient, and the safety of operators is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of protective devices, in particular to a protective device for a punching machine. Background Art

[0002] A stamping machine generally refers to a punching machine, which is a stamping press. Compared with traditional mechanical processing, the stamping process is highly efficient, saves materials and energy, does not require high technical skills from the operator, and can produce products that cannot be achieved by mechanical processing through various mold applications. Stamping production is mainly for sheet metal. Through molds, it can produce blanking, punching, forming, drawing, trimming, fine blanking, shaping, riveting and extrusion, etc., and is widely used in various fields.

[0003] At present, many stamping equipment can manufacture a variety of products or a variety of processes. When using the stamping method to process and produce some more complex products, manual work is still required, that is, directly loading and removing parts from the mold cavity by hand, which is prone to hand injuries. In addition, during the stamping process, it is easy for the stamped fragments to splash and injure people, which poses certain safety hazards. Utility Model Content

[0004] In view of this, the utility model provides a protective device for a stamping machine, which can effectively protect the upper pressure head through a height-adjustable protective mechanism, avoid splashing and injuring people from fragments punched off during the stamping process, make operation safer and more convenient, and ensure the safety of the operator.

[0005] In order to solve the above technical problems, the utility model provides a protective device for a stamping machine, including a fixing ring arranged on the outside of an output rod of a hydraulic telescopic rod, the fixing ring being welded on the outer side wall of the output rod of the hydraulic telescopic rod, a height-adjustable protective mechanism being arranged at the lower part of the fixing ring, the protective mechanism including an elastic component arranged at the lower part of the fixing ring, a baffle being arranged at the lower part of the elastic component, a protective pad being arranged at the lower part of the baffle, the lowest point of the protective pad being located below the lowest point of an upper pressure head arranged at the lower part of the output rod of the hydraulic telescopic rod. The utility model can achieve effective protection of the upper pressure head through the height-adjustable protective mechanism, avoid splashing and injuring people by fragments flushed away during the stamping process, make the operation safer and more convenient, and ensure the safety of the operator.

[0006] There are multiple elastic components, which are evenly distributed between the lower part of the fixed ring and the upper part of the baffle. Each elastic component includes a pressure rod arranged at the lower part of the fixed ring, a spring is arranged at the lower part of the pressure rod, the lower part of the spring is fixedly arranged together with the upper part of the baffle, and a limiting cylinder is arranged at the upper part of the baffle and located on the outer side of the spring. The utility model can move downward with the upper pressure head and the fixing ring, pressure rod, spring, baffle, protective pad and limiting cylinder on the outer side of the output rod when the output rod of the hydraulic telescopic rod is extended. Since the lowest point of the protective pad is located below the lowest point of the upper pressure head arranged at the lower part of the output rod of the hydraulic telescopic rod, before the upper pressure head contacts the part to be stamped, the protective pad at the lower part of the baffle is in contact with the fixed platform of the lower mold. As the output rod of the hydraulic telescopic rod continues to extend, coupled with the resistance of the fixed platform to the protective pad and the baffle The fixed ring compresses the spring downward with the pressure rod as the output rod of the hydraulic telescopic rod continues to extend. The compressed spring will firmly press the baffle and the protective pad against the top of the fixed table under the action of its own restoring elastic force until the stamping work is completed. In this process, even if the stamping fragments are splashed, they will be blocked by the inner wall of the baffle and will not splash and injure people. The operation is safer. After the stamping operation is completed, the output rod of the hydraulic telescopic rod is started to retract. When the spring returns to its original state, as the hydraulic telescopic push rod continues to retract, until the spring is stretched to the point where the upward restoring elastic force offsets the gravity of the baffle and the protective pad, the spring will pull the baffle and the protective pad away from the fixed table until they are lifted to a point where the operator can easily take out the stamped workpiece. The operation is safer and more convenient.

[0007] The baffle is a circular ring structure, and a transparent observation window is arranged on the baffle. The transparent observation window should be made of transparent tempered glass. The purpose of this is to ensure the overall strength of the baffle while allowing the operator to observe the internal stamping conditions, which is more convenient.

[0008] The protective pad is a ring-shaped rubber pad, which can prevent the lower part of the baffle from being directly squeezed against the fixing platform, which may easily cause bending or damage of the baffle, and is safer and more convenient.

[0009] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0010] 1. The utility model can realize effective protection of the upper pressure head through the height-adjustable protection mechanism, so as to avoid splashing and injuring people by the fragments flushed off during the punching process, and the operation is safer and more convenient, thus ensuring the safety of the operator.

[0011] 2. The utility model can move the upper pressure head and the fixing ring, pressure rod, spring, baffle, protective pad and limiting cylinder on the outer side of the output rod of the hydraulic telescopic rod downward when the output rod of the hydraulic telescopic rod is extended. Since the lowest point of the protective pad is located below the lowest point of the upper pressure head arranged at the lower part of the output rod of the hydraulic telescopic rod, the protective pad at the lower part of the baffle is in contact with the fixed platform of the lower mold before the upper pressure head contacts the part to be stamped. As the output rod of the hydraulic telescopic rod continues to extend, coupled with the blocking and limiting effect of the fixed platform on the protective pad and the baffle, the fixed ring compresses the spring downward with the pressure rod as the output rod of the hydraulic telescopic rod continues to extend. The compressed spring Under the action of its own restoring elastic force, the baffle and protective pad will be firmly pressed against the top of the fixed table until the stamping work is completed. In this process, even if the stamping fragments are splashed, they will be blocked by the inner wall of the baffle and will not splash and injure people. The operation is safer. After the stamping operation is completed, the output rod of the hydraulic telescopic rod is started to retract. When the spring returns to its original state, as the hydraulic telescopic push rod continues to retract, until the spring is stretched to the point where the upward restoring elastic force offsets the gravity of the baffle and protective pad, the spring will pull the baffle and protective pad away from the fixed table until they are lifted to a point where the operator can easily take out the stamped workpiece. The operation is safer and more convenient.

[0012] 3. The transparent observation window should be made of transparent tempered glass. The purpose of this is to ensure the overall strength of the baffle while allowing the operator to observe the internal stamping conditions, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the protective device for the punching machine of the utility model;

[0014] Figure 2 It is a front view of the protective device for a punching machine of the utility model;

[0015] Figure 3 This is a cross-sectional view of the utility model taken along line AA;

[0016] Figure 4 It is an enlarged view of point B of the present utility model.

[0017] Explanation of the reference numerals: 100, fixing ring; 200, protection mechanism; 210, elastic component; 211, pressure rod; 212, spring; 213, limiting cylinder; 220, baffle; 230, protection pad; 240, transparent observation window. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-4, the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0019] like Figure 1-4 As shown: This embodiment provides a protective device for a stamping machine, including a fixed ring 100 arranged on the outside of the output rod of the hydraulic telescopic rod, the fixed ring 100 is welded and arranged on the outer side wall of the output rod of the hydraulic telescopic rod, and a height-adjustable protective mechanism 200 is arranged at the lower part of the fixed ring 100. The protective mechanism 200 includes an elastic component 210 arranged at the lower part of the fixed ring 100, a baffle 220 is arranged at the lower part of the elastic component 210, and a protective pad 230 is arranged at the lower part of the baffle 220. The lowest point of the protective pad 230 is located below the lowest point of the upper pressure head arranged at the lower part of the output rod of the hydraulic telescopic rod. The utility model can achieve effective protection of the upper pressure head through the height-adjustable protective mechanism 200, avoid splashing and injuring people by fragments flushed away during the stamping process, and the operation is safer and more convenient, thereby ensuring the safety of the operator.

[0020] According to one embodiment of the utility model, Figure 1-4As shown, there are multiple elastic components 210, which are evenly arranged between the lower part of the fixing ring 100 and the upper part of the baffle 220. Each elastic component 210 includes a pressure rod 211 arranged at the lower part of the fixing ring 100, and a spring 212 is arranged at the lower part of the pressure rod 211. The lower part of the spring 212 is fixed together with the upper part of the baffle 220. A limiting cylinder 213 is arranged at the upper part of the baffle 220 and located on the outer side of the spring 212. The utility model can be provided with a hydraulic telescopic rod when the output rod is extended. The upper pressing head and the fixing ring 100, the pressing rod 211, the spring 212, the baffle plate 220, the protective pad 230 and the limiting cylinder 213 on the outer side of the output rod of the upper pressing head move downward together. Since the lowest point of the protective pad 230 is located below the lowest point of the upper pressing head arranged at the lower part of the output rod of the hydraulic telescopic rod, the protective pad 230 at the lower part of the baffle plate 220 is in contact with the fixing table of the lower die before the upper pressing head contacts the workpiece to be stamped. As the output rod of the hydraulic telescopic rod continues to extend, coupled with the fixing The platform has a blocking and limiting effect on the protective pad 230 and the baffle 220. The fixed ring 100 will compress the spring 212 downward with the pressure rod 211 as the output rod of the hydraulic telescopic rod continues to extend. The compressed spring 212 will firmly press the baffle 220 and the protective pad 230 above the fixed platform under the action of its own restoring elastic force until the stamping work is completed. In this process, even if the stamping fragments are splashed, they will be blocked by the inner wall of the baffle 220 and will not splash and injure people, making the operation safer. After the stamping operation is completed, when the output rod of the hydraulic telescopic rod is started to retract, when the spring 212 is restored to its original state, as the hydraulic telescopic push rod continues to retract, until the spring 212 is stretched to the upward restoring elastic force and the gravity of the baffle 220 and the protective pad 230 are offset, the spring 212 will pull the baffle 220 and the protective pad 230 away from the fixed platform until it is lifted to the point where the operator can easily take out the stamped workpiece, making the operation safer and more convenient.

[0021] According to another embodiment of the present invention, Figure 1 and Figure 2 As shown, the baffle 220 is a circular ring structure, and a transparent observation window 240 is provided on the baffle 220. The transparent observation window 240 should be made of transparent tempered glass. The purpose of this is to ensure the overall strength of the baffle 220 while allowing the operator to observe the internal stamping conditions more conveniently.

[0022] According to another embodiment of the present invention, Figure 1 and Figure 3 As shown, the protective pad 230 is an annular rubber pad, which can prevent the lower part of the baffle 220 from being directly squeezed against the fixing platform, which may easily cause bending or damage of the baffle 220, and is safer and more convenient.

[0023] The use of the utility model:

[0024] First of all, it should be made clear that the protective device involved in the utility model is mainly used for protective operations during machining. The utility model takes the protection of a stamping machine during the stamping process as an example to explain its use method in detail. It should be noted here that the height of the fixed platform of the lower mold is not lower than the height of the lower mold, and the size of the fixed platform is larger than the size of the lower mold. When stamping operations are required, the output rod of the hydraulic telescopic rod is started to extend. When the output rod of the hydraulic telescopic rod is extended, the upper pressure head and the fixed ring 100, the pressure rod 211, the spring 212, the baffle 220, the protective pad 230 and the limiting cylinder 213 on the outside of the output rod move downward together. Since the lowest point of the protective pad 230 is located below the lowest point of the upper pressure head set at the lower part of the output rod of the hydraulic telescopic rod, before the upper pressure head contacts the part to be stamped, the protective pad 230 at the lower part of the baffle 220 is in contact with the fixed platform of the lower mold. As the output rod of the hydraulic telescopic rod continues to extend, coupled with the blocking and limiting effect of the fixed platform on the protective pad 230 and the baffle 220, the fixed ring 100 returns with the output of the hydraulic telescopic rod. The rod continues to extend, bringing the pressure rod 211 downward to compress the spring 212. The compressed spring 212 will firmly press the baffle 220 and the protective pad 230 above the fixed platform under the action of its own restoring elastic force until the stamping work is completed. In this process, even if the stamping debris splashes, it will be blocked by the inner wall of the baffle 220 and will not splash and injure people, making the operation safer. After the stamping operation is completed, the output rod of the hydraulic telescopic rod is started to retract. When the spring 212 returns to its original state, the hydraulic The telescopic push rod continues to retract until the spring 212 is stretched to the point where the upward restoring elastic force offsets the gravity of the baffle 220 and the protective pad 230. The spring 212 will pull the baffle 220 and the protective pad 230 away from the fixed platform until they are lifted to a point where the operator can easily take out the stamped workpiece. The operation is safer and more convenient. The utility model can achieve effective protection of the upper pressure head through the height-adjustable protective mechanism 200 to avoid splashing and injuring people due to fragments flushed away during the stamping process. The operation is safer and more convenient, ensuring the safety of the operator.

[0025] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0026] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A protective device for a punching machine, comprising a fixing ring (100) arranged outside an output rod of a hydraulic telescopic rod, characterized in that: A height-adjustable protective mechanism (200) is arranged at the bottom of the fixing ring (100), and the protective mechanism (200) comprises an elastic component (210) arranged at the bottom of the fixing ring (100), a baffle (220) is arranged at the bottom of the elastic component (210), and a protective pad (230) is arranged at the bottom of the baffle (220), and the lowest point of the protective pad (230) is located below the lowest point of an upper pressure head arranged at the bottom of an output rod of the hydraulic telescopic rod.

2. The punching machine protection device according to claim 1, characterized in that: There are a plurality of elastic components (210), which are evenly distributed between the lower portion of the fixing ring (100) and the upper portion of the baffle (220).

3. The punching machine protection device according to claim 2, characterized in that: Each of the elastic components (210) comprises a pressure rod (211) arranged at the lower part of the fixing ring (100), a spring (212) is arranged at the lower part of the pressure rod (211), the lower part of the spring (212) is fixedly arranged with the upper part of the baffle (220), and a limiting cylinder (213) is arranged at the upper part of the baffle (220) and located on the outer side of the spring (212).

4. The punching machine protection device according to claim 3, characterized in that: The baffle (220) is a circular ring structure, and a transparent observation window (240) is provided on the baffle (220).

5. The punching machine protection device according to claim 4, characterized in that: The fixing ring (100) is welded and arranged on the outer side wall of the output rod of the hydraulic telescopic rod.

6. The punching machine protection device according to claim 5, characterized in that: The protective pad (230) is an annular rubber pad.

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