Stamping equipment for stainless steel product production and processing

Abstract

The utility model discloses stamping equipment for producing and processing stainless steel products, which comprises a station objective table, a lower die, an upper die and a hydraulic rod which are sequentially arranged from bottom to top. In the upward moving and resetting process of the upper die, a high-pressure cavity can be formed in the stainless steel product, upward thrust is applied to the stainless steel product, the stainless steel product is pushed down from the lower die, an operator does not need to carry out other operations, the workload of the operator is reduced, and in the process that the stainless steel product is pushed down from the lower die, the production efficiency is improved. And continuously flowing air flow is synchronously formed in the gap between the inner wall of the stainless steel product and the outer wall of the lower die to lubricate the inner wall of the stainless steel product and the outer wall of the lower die, so that the situation that the inner wall of the stainless steel product is damaged and the quality of the stainless steel product is influenced due to relatively strong friction between the inner wall of the stainless steel product and the outer wall of the lower die is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stainless steel product stamping equipment, especially to a stamping equipment for stainless steel product production and processing. BACKGROUND

[0002] The stainless steel stamping forming process mainly includes a deep drawing forming process, an expansion forming process, a flanging forming process and a bending forming process, the deep drawing forming process is a kind of stamping process method for making the open hollow piece by special die to the flat plate blank obtained after blanking or shearing, and its characteristics are that plate material can flow into female die under the driving of male die, that is, forming by relying on the fluidity and elongation of material.

[0003] When the existing stainless steel product stamping equipment is used, the tubular stainless steel product is generally sleeved on the lower die after stamping forming, and the operator manually takes down the stainless steel product from the lower die, which is labor-intensive, and since the gap between the stainless steel product and the outer wall of the lower die is extremely small, the inner wall of the stainless steel product may rub against the outer wall of the lower die during the process of taking down the stainless steel product from the lower die, resulting in damage to the inner wall of the stainless steel product and affecting the quality of the stainless steel product. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a stamping equipment for stainless steel product production and processing to solve the problems in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a stamping equipment for stainless steel product production and processing, which comprises a work station loading platform, a lower die, an upper die and a hydraulic rod, the work station loading platform, the lower die, the upper die and the hydraulic rod are sequentially arranged from bottom to top, and the lower die is fixedly connected with the work station loading platform through bolts, the upper die is fixedly connected with the driving end of the hydraulic rod through bolts, and a demolding assembly is arranged on the lower die and the upper die;

[0006] The demolding assembly comprises a sleeve, the sleeve is slidably sleeved on the top of the upper die, a circular groove is formed in the center of the top side of the lower die, and a communication mechanism is arranged between the sleeve and the lower die to communicate the inside of the sleeve with the inside of the circular groove.

[0007] Preferably, a support frame is fixedly sleeved on the outer circumferential side of the hydraulic rod, and the bottom end of the support frame is fixedly connected with the work station loading platform through bolts, and the bottom end of the hydraulic rod piston cylinder is arranged in T shape and fixedly connected with the sleeve through bolts.

[0008] Preferably, the driving rod of the hydraulic rod is slidably penetrated through the barrel wall of the sleeve, a sealing ring is fixedly arranged in the barrel wall of the sleeve, and the inner annular wall of the sealing ring is in contact with the outer circumferential wall of the driving rod of the hydraulic rod.

[0009] Preferably, a soft ring is fixedly arranged in the top opening of the circular groove, and the top side of the soft ring is located at the top end of the top side of the lower mold.

[0010] Preferably, the outer ring side of the top side of the upper mold is arc-shaped, a ring-shaped groove is arranged on the outer peripheral wall of the top of the upper mold, and a sealing ring is slidably arranged in the ring-shaped groove.

[0011] Preferably, a plurality of connecting holes are arranged in a circumferential array on the outer peripheral wall of the top of the upper mold, and each connecting hole is located at the bottom side of the ring-shaped groove.

[0012] Preferably, the communication mechanism comprises a connecting pipe, the outer peripheral side of the sleeve is provided with an electric control valve, one end of the electric control valve is inserted into the sleeve and fixedly connected with the sleeve, the outer peripheral side of the bottom of the lower mold is provided with a connector, one end of the connector is inserted into the circular groove and fixedly connected with the lower mold, and the two ends of the connecting pipe are threadedly sleeved with the other end of the electric control valve and the other end of the connector, respectively.

[0013] The utility model at least has the following beneficial effects:

[0014] 1. In the process of moving the upper mold to reset, a high-pressure cavity is formed in the stainless steel product, an upward thrust is applied to the stainless steel product, the stainless steel product is pushed up from the lower mold, no other operation is needed for the operator, the workload of the operator is reduced, and in the process of pushing the stainless steel product up from the lower mold, a continuous airflow is formed in the gap between the inner wall of the stainless steel product and the outer wall of the lower mold, the inner wall of the stainless steel product and the outer wall of the lower mold are lubricated, strong friction between the inner wall of the stainless steel product and the outer wall of the lower mold is avoided, the inner wall of the stainless steel product is not damaged, and the quality of the stainless steel product is affected.

[0015] 2. When the upper mold and the lower mold are closed, an adsorption force is applied to the raw material, so that the raw material is placed more stably on the lower mold. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0017] Figure 1 It is the front view of the overall structure of the utility model;

[0018] Figure 2 It is the perspective view of the overall structure of the utility model;

[0019] Figure 3This is a perspective view of the overall structure of the lower mold, upper mold, and hydraulic rod of this utility model;

[0020] Figure 4 This is a front view of the internal structure of the sleeve of this utility model;

[0021] Figure 5 This is a perspective view of the internal structure of the sleeve and upper mold of this utility model;

[0022] Figure 6 This is a perspective view of the internal structure of the lower mold of this utility model.

[0023] In the diagram: 1. Workstation platform; 2. Lower mold; 3. Upper mold; 4. Hydraulic rod; 5. Demolding assembly; 51. Circular groove; 52. Sleeve; 53. Soft ring; 54. Annular groove; 55. Sealing ring; 56. Connecting hole; 57. Sealing ring; 6. Connecting mechanism; 61. Connecting pipe; 62. Electrically controlled valve; 63. Interface; 7. Support frame. Detailed Implementation

[0024] To make the technical solution and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] This utility model provides a technical solution: (Refer to...) Figure 1 - Figure 6 The present invention discloses a stamping equipment for the production and processing of stainless steel products, including a work platform 1, a lower die 2, an upper die 3 and a hydraulic rod 4. The work platform 1, the lower die 2, the upper die 3 and the hydraulic rod 4 are arranged in order from bottom to top. The lower die 2 is fixedly connected to the work platform 1 by bolts, and the upper die 3 is fixedly connected to the drive end of the hydraulic rod 4 by bolts. The lower die 2 and the upper die 3 are provided with a demolding component 5.

[0026] The demolding assembly 5 includes a sleeve 52, which is slidably fitted on the top of the upper mold 3. A circular groove 51 is provided at the center of the top side of the lower mold 2. A communication mechanism 6 is provided between the sleeve 52 and the lower mold 2 for communication between the inside of the sleeve 52 and the inside of the circular groove 51.

[0027] In this embodiment, please refer to Figure 2 - Figure 4 As shown, the workstation platform 1 is used to place the raw material storage box. When using the device, the operator places the storage box containing the raw material on the workstation platform 1 for easy access. The upper mold 3 is located directly above the lower mold 2, so that when the hydraulic rod 4 drives the upper mold 3 to descend, the top of the lower mold 2 can directly insert into the inner cavity of the upper mold 3. Specifically, the operator places the raw material, i.e., the stainless steel plate, on the top side of the lower mold 2, and then drives the upper mold 3 to move downward. Please refer to...Figures 3-6 As shown in the figure, first, the upper mold 3 is slowly slid out of the sleeve 52, so that a negative pressure cavity is formed in the sleeve 52, and part of the gas in the circular groove 51 is sucked into the sleeve 52 through the communication mechanism 6, so that a negative pressure cavity of corresponding strength is formed in the circular groove 51, and an adsorption restraining force is applied to the stainless steel plate, so that the stainless steel plate is stably placed on the top side of the lower mold 2;

[0028] After the upper mold 3 is slid out of the sleeve 52, external gas flows into the sleeve 52 from the bottom opening of the sleeve 52, so as to eliminate the negative pressure state in the sleeve 52, and due to the constraint of the communication mechanism 6, the gas in the sleeve 52 will only slowly flow into the circular groove 51 in a small amount, so that the stainless steel plate will still bear the adsorption restraining force for a period of time;

[0029] After the upper mold 3 is slid out of the sleeve 52, the bottom end of the upper mold 3 contacts the stainless steel plate as the upper mold 3 moves downward, and then the stainless steel plate is punched to form a stainless steel sleeve on the lower mold 2 as the upper mold 3 slowly sleeves on the top of the lower mold 2;

[0030] Please refer to Figure 3 - Figure 6 As shown in the figure, after the punching and shaping of the stainless steel plate is completed, the hydraulic rod 4 drives the upper mold 3 to move upward, and in the process of slowly inserting the upper mold 3 into the sleeve 52, the upper mold 3 slowly compresses the gas in the sleeve 52, so that a high-pressure cavity is formed in the sleeve 52, and part of the gas in the sleeve 52 flows into the circular groove 51 through the communication mechanism 6, and then flows into the gap between the inner wall of the stainless steel sleeve and the lower mold 2 from the top opening of the circular groove 51. Due to the extremely small gap between the inner wall of the stainless steel sleeve and the lower mold 2, the amount of gas flowing out of the gap is extremely small, and at this time a high-pressure cavity is formed in the stainless steel sleeve, which exerts an upward pushing force on the stainless steel sleeve to push the stainless steel sleeve off the lower mold 2. Without other operations of the operator, the workload of the operator is reduced, and in the process of sliding the stainless steel sleeve off the lower mold 2, the gas flowing between the inner wall of the stainless steel sleeve and the outer wall of the lower mold 2 can lubricate the inner wall of the stainless steel sleeve and the outer wall of the lower mold 2, so as to avoid strong friction between the inner wall of the stainless steel sleeve and the outer wall of the lower mold 2, which may damage the inner wall of the stainless steel sleeve and affect the quality of the stainless steel product.

[0031] In further preferable embodiments of the present application, as shown in Figure 2 and Figure 4 The outer circumferential side of the hydraulic rod 4 is fixedly sleeved with a support frame 7, and the bottom end of the support frame 7 is fixedly connected with the worktable 1 through bolts, and the bottom end of the piston cylinder of the hydraulic rod 4 is provided in a T shape and fixedly connected with the sleeve 52 through bolts.

[0032] In this embodiment, please refer to Figure 2 and Figure 4As shown, the object table, the lower mold 2, the upper mold 3, the hydraulic rod 4 and the sleeve 52 in the application are all detachably arranged, which facilitates the replacement of damaged parts; the support frame 7 is arranged to synchronously support and limit the hydraulic rod 4 and the sleeve 52, and the sleeve 52 is connected with the piston cylinder of the hydraulic rod 4, so that the position between the upper mold 3 and the sleeve 52 remains unchanged, thereby avoiding that the upper mold 3 is always located at the corresponding position in the sleeve 52 when being moved up to the limit.

[0033] In further preferable embodiments of the present application, as shown in Figure 4 and Figure 5 , the driving rod of the hydraulic rod 4 is slidably penetrated through the barrel wall of the sleeve 52, and a sealing ring 57 is fixedly arranged in the barrel wall of the sleeve 52, and the inner annular wall of the sealing ring 57 is in contact with the outer peripheral wall of the driving rod of the hydraulic rod 4.

[0034] In the present embodiment, please refer to Figure 4 and Figure 5 , during the process of inserting the upper mold 3 into the sleeve 52, due to the sealing of the sealing ring 57 to the gap between the driving rod of the hydraulic rod 4 and the barrel wall of the sleeve 52, the gas in the sleeve 52 will not flow out from the gap between the driving rod of the hydraulic rod 4 and the barrel wall of the sleeve 52, so that all the gas flowing out of the sleeve 52 flows into the communication mechanism 6.

[0035] In further preferable embodiments of the present application, as shown in Figure 6 , a soft ring 53 is fixedly arranged in the top opening of the circular groove 51, and the top side of the soft ring 53 is in contact with the top end of the top side of the lower mold 2.

[0036] In the present embodiment, please refer to Figure 6 , after the raw materials are placed on the base, due to the pressing of the raw materials on the soft ring 53, the top of the soft ring 53 is deformed and shrinks, and the shape of the top side of the soft ring 53 is automatically changed, so that the top side of the soft ring 53 is tightly attached to the raw materials, thereby sealing the gap between the raw materials and the top side of the lower mold 2, and enhancing the stability of the raw materials adsorbed in the negative pressure cavity of the circular groove 51.

[0037] In further preferable embodiments of the present application, as shown in Figure 4 and Figure 5 , the outer annular edge of the top side of the upper mold 3 is arc-shaped, a ring-shaped groove 54 is formed on the outer peripheral wall of the top of the upper mold 3, and a sealing ring 55 is slidably arranged in the ring-shaped groove 54.

[0038] In the present embodiment, please refer to Figure 4 and Figure 5As shown, the arc surface of the outer ring edge of the upper die 3 is arranged so that the upper die 3 can be directly inserted into the sleeve 52 when the upper die 3 moves upward, without interfering with the cylinder wall of the sleeve 52, affecting the use of the device, and after the upper die 3 is inserted into the sleeve 52, the sealing ring 55 can block the gap between the upper die 3 and the inner wall of the sleeve 52, so that the upper die 3 can compress all the gas in the sleeve 52 during the process of being inserted into the sleeve 52.

[0039] In further preferable embodiments of the present application, as shown in Figure 4 , Figure 5 , a plurality of connecting holes 56 are arranged in a circumferential array on the outer peripheral wall of the top of the upper die 3, and each connecting hole 56 is located on the bottom side of the annular groove 54.

[0040] In this embodiment, as shown in Figure 4 , Figure 5 , when the upper die 3 is pulled off the stainless steel product, external gas flows into the upper die 3 through the connecting holes 56, so that no negative pressure cavity is generated in the inner cavity of the upper die 3 during the process of pulling off the upper die 3 from the stainless steel product, affecting the separation of the upper die 3 and the stainless steel product.

[0041] In further preferable embodiments of the present application, as shown in Figure 3 , Figure 5 , Figure 6 , the communication mechanism 6 comprises a connecting pipe 61, the outer peripheral side of the sleeve 52 is provided with an electric control valve 62, one end of the electric control valve 62 is inserted into the sleeve 52 and fixedly connected with the cylinder wall of the sleeve 52, the outer peripheral side of the bottom of the lower die 2 is provided with a connector 63, one end of the connector 63 is inserted into the circular groove 51 and fixedly connected with the lower die 2, and the two ends of the connecting pipe 61 are respectively threadedly sleeved on the other end of the electric control valve 62 and the other end of the connector 63.

[0042] In this embodiment, as shown in Figure 3 , Figure 5 , Figure 6 , after the negative pressure cavity is generated in the sleeve 52, the electric control valve 62 is completely opened, at this time, the excess gas in the circular groove 51 flows into the sleeve 52 through the connector 63, the connecting pipe 61 and the electric control valve 62, so that a negative pressure cavity with corresponding strength is formed in the circular groove 51, and the connecting pipe 61 is a soft pipe, such as a rubber pipe or a corrugated pipe, so that the arrangement of the connecting pipe 61 does not affect the combination or separation of the upper die 3 and the lower die 2.

[0043] After the upper die 3 slides out of the sleeve 52, the electric control valve 62 is closed by half, so that the gas in the sleeve 52 flows into the circular groove 51 very slowly, so as to maintain the adsorption limiting state of the raw material, so that the raw material is placed on the lower die 2 more stably, and the displacement of the upper die 3 and the raw material does not occur during the mutual resistance of the upper die 3 and the raw material, which affects the stamping and shaping operation of the raw material, and after the stamping and shaping operation of the raw material is completed, the negative pressure state in the circular groove 51 is released, which does not affect the separation of the stainless steel product and the lower die 2.

[0044] Working principle: when the improved stainless steel product production and processing stamping equipment is used, the operator places the raw material, i.e. stainless steel plate, on the top side of the lower die 2. Due to the pressing of the raw material on the soft ring 53, the top of the soft ring 53 is deformed and shrunk, which automatically changes the shape of the top side of the soft ring 53, so that the top side of the soft ring 53 is tightly combined with the raw material, thereby sealing the gap between the raw material and the top side of the lower die 2. Then start the device, the hydraulic rod 4 drives the upper die 3 to move downward, first the upper die 3 slowly slides out of the sleeve 52. Due to the sealing of the gap between the upper die 3 and the sleeve 52 by the sealing ring 55, a negative pressure cavity is formed in the sleeve 52. At the same time, the electric control valve 62 is completely opened. At this time, due to the pressure difference between the inside of the sleeve 52 and the inside of the circular groove 51, the gas in the circular groove 51 flows into the sleeve 52 through the interface 63, the connecting pipe 61 and the electric control valve 62, so that a negative pressure cavity corresponding to the strength is formed in the circular groove 51, thereby exerting an adsorption constraint force on the raw material, i.e. the stainless steel plate, through the negative pressure cavity in the circular groove 51, so that the stainless steel is stably placed on the top side of the lower die 2;

[0045] After the upper die 3 slides out of the sleeve 52, the electric control valve 62 is closed by half, at this time the external gas flows into the sleeve 52 from the bottom opening of the sleeve 52, to release the negative pressure state in the sleeve 52, then due to the obstruction of the electric control valve 62, the gas in the sleeve 52 flows into the circular groove 51 at a very slow rate, the negative pressure state in the circular groove 51 is still maintained for a period of time, to maintain the adsorption limiting state of the stainless steel plate;

[0046] After the upper die 3 slides out of the sleeve 52, as the upper die 3 moves downward, the bottom end of the upper die 3 contacts the stainless steel plate, the position between the stainless steel plate and the lower die 2 remains unchanged due to the adsorption constraint force, then as the upper die 3 slowly sleeves on the top of the lower die 2, the stainless steel plate is stamped to form a stainless steel product, i.e. a stainless steel sleeve, on the lower die 2, at the same time, due to the sufficient inflow of gas, the negative pressure state in the circular groove 51 is released;

[0047] After the stamping and shaping of the stainless steel plate is completed, the hydraulic rod 4 drives the upper die 3 to move upward, at this time the external gas flows into the upper die 3 from the connecting hole 56, so that no negative pressure cavity is generated in the cavity of the upper die 3 during the separation of the upper die 3 and the stainless steel sleeve, which affects the separation of the upper die 3 and the stainless steel sleeve;

[0048] During the process of slowly inserting the upper die 3 into the sleeve 52, the upper die 3 slowly compresses the gas in the sleeve 52 due to the sealing of the upper die 3 and the inner wall of the sleeve 52 by the sealing ring 55, so that a high-pressure cavity is formed in the sleeve 52, at the same time, the electric control valve 62 is completely opened, part of the gas in the sleeve 52 flows into the circular groove 51 through the electric control valve 62, the connecting pipe 61 and the interface 63, and then flows into the gap between the inner wall of the stainless steel cylinder and the lower die 2 from the top opening of the circular groove 51, and since the gap between the inner wall of the stainless steel cylinder and the lower die 2 is very small, the amount of gas flowing out of the gap is very small, so that a high-pressure cavity is formed in the stainless steel cylinder, which exerts an upward pushing force on the stainless steel cylinder, and pushes the stainless steel cylinder down from the lower die 2, and during the process of the stainless steel cylinder sliding down from the lower die 2, the gas flowing between the inner wall of the stainless steel cylinder and the outer wall of the lower die 2 can lubricate the inner wall of the stainless steel cylinder and the outer wall of the lower die 2, so as to avoid strong friction between the inner wall of the stainless steel cylinder and the outer wall of the lower die 2.

[0049] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A stamping device for stainless steel product production and processing, comprising a work station carrier table (1), a lower die (2), an upper die (3) and a hydraulic rod (4), characterized in that: The worktable (1), the lower die (2), the upper die (3) and the hydraulic rod (4) are sequentially arranged from bottom to top, and the lower die (2) is fixedly connected with the worktable (1) by bolts, the upper die (3) is fixedly connected with the driving end of the hydraulic rod (4) by bolts, and the lower die (2) and the upper die (3) are jointly provided with a demolding assembly (5). The demolding assembly (5) comprises a sleeve (52), the sleeve (52) is slidably sleeved on the top of the upper die (3), a circular groove (51) is formed in the center of the top side of the lower die (2), and a communication mechanism (6) is arranged between the sleeve (52) and the lower die (2) for communication between the inside of the sleeve (52) and the inside of the circular groove (51).

2. The punch press apparatus for processing stainless steel products according to claim 1, characterized in that: The outer periphery of the hydraulic rod (4) is fixedly sleeved with a support frame (7), and the bottom end of the support frame (7) is fixedly connected with the worktable (1) by bolts, and the bottom end of the piston cylinder of the hydraulic rod (4) is arranged in T shape and fixedly connected with the sleeve (52) by bolts.

3. The punch press apparatus for processing stainless steel products according to claim 2, characterized in that: The driving rod of the hydraulic rod (4) slidably penetrates the cylinder wall of the sleeve (52), and a sealing ring (57) is fixedly arranged in the cylinder wall of the sleeve (52), and the inner ring wall of the sealing ring (57) is in contact with the outer peripheral wall of the driving rod of the hydraulic rod (4).

4. The punch press apparatus for processing stainless steel products according to claim 3, characterized in that: A soft ring (53) is fixedly arranged in the top opening of the circular groove (51), and the top side of the soft ring (53) is in contact with the top end of the top side of the lower die (2).

5. The punch press apparatus for processing stainless steel products according to claim 4, characterized in that: The outer ring side of the top side of the upper die (3) is arranged in an arc shape, an annular groove (54) is formed in the outer peripheral wall of the top of the upper die (3), and a sealing ring (55) is slidably arranged in the annular groove (54).

6. The punch press apparatus for processing stainless steel products according to claim 5, characterized in that: A plurality of connecting holes (56) are circumferentially arranged in the outer peripheral wall of the top of the upper die (3), and each connecting hole (56) is located on the bottom side of the annular groove (54).

7. The punch press apparatus for processing stainless steel products according to claim 6, characterized in that: The communication mechanism (6) comprises a connecting pipe (61), an electric control valve (62) is arranged on the outer periphery of the sleeve (52), one end of the electric control valve (62) is inserted into the sleeve (52) and fixedly connected with the cylinder wall of the sleeve (52), an interface (63) is arranged on the outer periphery of the bottom of the lower die (2), one end of the interface (63) is inserted into the circular groove (51) and fixedly connected with the lower die (2), and the two ends of the connecting pipe (61) are threadedly sleeved with the other end of the electric control valve (62) and the other end of the interface (63) respectively.

Images