Sheet metal part stamping device

Abstract

The utility model relates to the technical field of sheet metal part machining, in particular to a sheet metal part stamping device which comprises a machine base and a stamping mechanism for machining sheet metal parts, the stamping mechanism comprises a lubricating assembly, the lubricating assembly comprises a box body, a vertical fixing cylinder and a connecting pipe are fixedly installed on the top of the box body, and the connecting pipe is communicated with a buffer box. Aligned through holes are evenly formed in the buffer box, the machining frame and the lower die, a supporting plate is slidably installed in the lower die and supported by a supporting block, a supporting rod is fixedly connected to the bottom of the supporting block, and a supporting spring is fixedly installed between the supporting rod and the top of the buffer box. According to the stamping die, in the descending process of the upper die, the limiting rod is inserted into the fixing cylinder, oil liquid is extruded out of the fixing cylinder, the oil liquid in the box body ascends and enters the buffer box through the connecting pipe, then the oil liquid enters the lower die through the through hole, and a sheet metal part is cooled in the stamping process; and friction and abrasion between the sheet metal part and the die can be effectively reduced, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sheet metal part processing technical field, concretely relates to a sheet metal part stamping device. BACKGROUND

[0002] Sheet metal stamping, as a kind of comprehensive cold working process for sheet metal, covers multiple links such as shearing, punching / cutting / compounding, folding, welding, riveting, splicing and forming, among which stamping processing is particularly crucial, which is to make materials produce separation or plastic deformation by using dies installed on a press machine to apply pressure to the materials;However, although stamping process plays an important role in sheet metal processing, the generation of burrs in actual operation process cannot be ignored;Burr, i.e. small metal protrusions formed at the edge of workpiece during stamping process due to incomplete fracture or tearing of materials in the die, the existence of burr not only affects the appearance quality of workpiece, but also may cause trouble to subsequent assembly and use, and even in some cases, burr may lead to the scrap of entire product, therefore, reducing the generation of burr from the design perspective is of great significance to improve the quality and efficiency of sheet metal stamping process.

[0003] Prior art, such as the utility model disclosed in patent announcement No. CN222288472U, relates to stamping device technical field, and comprises a support seat;Supporting feet are fixedly connected to the periphery of the lower end of the support seat, a protective cover is fixedly connected to the upper end of the support seat, a lifting structure is fixedly connected to the middle of the upper end of the support seat, a stamping structure is fixedly connected to the upper part of the lifting structure, an upper die is fixedly connected to the middle of the stamping structure, a lubricating structure is fixedly connected to the middle of the stamping structure, and a lower die is fixedly connected to the middle of the stamping structure. The utility model can spray cutting fluid in the support seat to the inner cavity of the upper die by the cooperation of the support seat and the lubricating structure, thereby absorbing and removing the heat generated during the stamping process, reducing the temperature of the workpiece and the die, reducing thermal deformation and burr formation, and forming a lubricating film between the workpiece and the die to reduce friction and wear.

[0004] When cutting fluid is sprayed into the inner cavity of the upper die, the cutting fluid is easy to splash out of the upper die, and the lubricating effect of the cutting fluid is limited, which cannot effectively reduce friction and wear.

[0005] Therefore, it is necessary to provide a new technical scheme to overcome the above-mentioned defects. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a sheet metal part stamping device that can effectively solve the above-mentioned technical problems.

[0007] To achieve the purpose of the utility model, the following technical scheme is adopted: a sheet metal part stamping device, comprising: a machine base, a stamping mechanism for processing sheet metal parts;

[0008] The stamping mechanism comprises: a processing frame, a hydraulic cylinder is fixedly installed on the top of the processing frame, a piston rod of the hydraulic cylinder is fixedly connected with an upper die, a vertical limiting rod is fixedly connected to the bottom of the upper die, the limiting rod slides through a lower die, a damping spring is sleeved on the limiting rod, and a lubricating assembly is installed at the bottom of the processing frame;

[0009] The lubricating assembly comprises: a box body, a vertical fixing cylinder and a connecting pipe are fixedly installed on the top of the box body, the connecting pipe communicates with a buffer box, aligned through holes are uniformly arranged on the buffer box, the processing frame and the lower die, a supporting plate is slidingly installed in the lower die, the supporting plate is supported by a supporting block, a supporting rod is fixedly connected to the bottom of the supporting block, and a supporting spring is fixedly installed between the supporting rod and the top of the buffer box.

[0010] Further, the limiting rod is slidingly installed in the fixing cylinder, and the fixing cylinder communicates with the box body.

[0011] Further, the bottom of the processing frame is provided with a circular groove, and the supporting spring is located in the circular groove.

[0012] Further, the supporting rod is slidingly installed in the circular groove, and the supporting rod slides through the bottom of the lower die.

[0013] Further, the supporting plate is uniformly provided with filter holes, and the supporting block is a hollow structure.

[0014] Compared with the prior art, the sheet metal part stamping device has the following beneficial effects: in the process of lowering the upper die, the limiting rod is inserted into the fixing cylinder, the oil liquid is extruded out of the fixing cylinder, the oil liquid in the box body rises and enters the buffer box through the connecting pipe, the oil liquid enters the lower die through the through hole, the sheet metal part is cooled during the stamping process, the friction and wear between the sheet metal part and the die can be effectively reduced, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings are used to provide a further understanding of the utility model and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation on the utility model.

[0016] Fig. 1 It is a structural schematic view of the sheet metal part stamping device of the utility model.

[0017] Fig. 2 It is a structural schematic view of the stamping mechanism in the utility model.

[0018] Fig. 3 It is the cross section structure schematic view of the stamping mechanism in the utility model.

[0019] In the figure: 1, the base; 2, feeding device; 3, unloading device; 4, stamping mechanism; 41, hydraulic cylinder; 42, processing frame; 43, lubricating assembly; 431, fixed cylinder; 432, box body; 433, connecting pipe; 434, buffer tank; 435, supporting spring; 436, support rod; 437, support plate; 438, support block; 44, upper die; 45, limit rod; 46, damping spring; 47, lower die. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the following will combine the technical scheme in the utility model embodiment to make clear, complete description, obviously, the described embodiment is the part embodiment of the utility model, not all embodiments.

[0021] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the protection scope of the utility model. When the mechanism is referred to as "fixed to" another mechanism, it can be directly on another mechanism or there can be a central mechanism. When a mechanism is considered to be "connected" to another mechanism, it can be directly connected to another mechanism or there can be a central mechanism. When a mechanism is considered to be "set on" another mechanism, it can be directly set on another mechanism or there can be a central mechanism. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this paper are only for illustrative purposes.

[0022] As Figs. 1 to 3 shown, the utility model discloses a sheet metal stamping device, which comprises: a base 1, a stamping mechanism 4 for processing sheet metal.

[0023] One side of the base 1 is provided with a feeding device 2, and the other side of the base 1 is provided with an unloading device 3.

[0024] The stamping mechanism 4 comprises a machining frame 42 fixedly installed on the top of the base 1, a hydraulic cylinder 41 fixedly installed on the top of the machining frame 42, a piston rod of the hydraulic cylinder 41 penetrating through the top of the machining frame 42 and fixedly connected with an upper die 44, a plurality of vertical limiting rods 45 fixedly connected at the edge position of the bottom of the upper die 44, the limiting rods 45 slidingly penetrating through a lower die 47, the bottom of the machining frame 42 and the outer wall of the base 1, the lower die 47 fixedly installed on the bottom of the inner wall of the machining frame 42, a damping spring 46 sleeved on the limiting rods 45 and fixedly connected at both ends thereof on the upper die 44 and the lower die 47, and a lubricating assembly 43 installed on the bottom of the machining frame 42.

[0025] The lubricating assembly 43 comprises a box body 432 fixedly installed on the bottom of the inner wall of the base 1, a vertical fixed cylinder 431 and a connecting pipe 433 fixedly installed on the top of the box body 432, the upper end of the fixed cylinder 431 fixedly connected on the top of the inner wall of the base 1, the limiting rods 45 slidingly installed in the fixed cylinder 431 and the fixed cylinder 431 in communication with the box body 432, the connecting pipe 433 in communication with a buffer box 434 fixedly installed on the bottom of the machining frame 42, the buffer box 434, the machining frame 42 and the lower die 47 all uniformly provided with aligned through holes, a support plate 437 slidingly installed in the lower die 47 and uniformly provided with filter holes on the support plate 437 so that the support plate 437 can filter impurities washed off from the metal sheet by the oil, the support plate 437 supported by support blocks 438 which are of a hollow structure to avoid sealing part of the filter holes on the support plate 437, and the support blocks 438 fixedly connected at the bottom with support rods 436 and the support rods 436 fixedly installed between the top of the buffer box 434 and the support springs 435.

[0026] During the descending process of the upper die 44, the limiting rods 45 are inserted into the fixed cylinder 431 to squeeze out the oil from the fixed cylinder 431, so that the oil in the box body 432 rises and enters the buffer box 434 through the connecting pipe 433 and then enters the lower die 47 through the through holes, thereby cooling the metal sheet during the stamping process and effectively reducing the friction and wear between the metal sheet and the die to improve the practicability of the device; the oil can be repeatedly used and has a high utilization rate, and the support plate 437 can also filter impurities in the oil while ejecting the metal sheet; the oil cooling method is the prior art, and the lubricating effect of the oil is much higher than that of the cutting fluid; the device does not use a water pump and other structures for spraying cutting fluid, has a simpler structure and is more practical.

[0027] Further, the bottom of the processing frame 42 is provided with a circular groove, a supporting spring 435 is located in the circular groove, a supporting rod 436 is slidingly installed in the circular groove, and the supporting rod 436 slides and penetrates through the bottom of the lower die 47; the supporting rod 436 is pushed by the supporting spring 435, the supporting rod 436 pushes the supporting frame, the supporting block 438 pushes the supporting plate 437 to rise, and then the stamped metal part is ejected from the lower die 47.

[0028] It should be noted that the top of the supporting plate 437 is shaped to match the shape of the metal part to be stamped.

[0029] Working principle:

[0030] The metal part is moved to the lower die 47 by the feeding device 2, the hydraulic cylinder 41 is started, the piston rod of the hydraulic cylinder 41 pushes the upper die 44 to descend, the upper die 44 drives the limiting rod 45 to descend, and the damping spring 46 plays a buffering role; the limiting rod 45 slides downward in the fixed cylinder 431 and extrudes the oil in the fixed cylinder 431 into the box body 432, the oil in the box body 432 enters the connecting pipe 433, the oil in the connecting pipe 433 enters the buffer tank 434, the oil is buffered by the buffer tank 434 to reduce the rising speed of the oil, so that the oil is prevented from being sprayed out, and the oil enters the lower die 47 through the through hole; when the upper die 44 stamps the metal part to form, the oil contacts the metal part to cool the metal part, and can effectively reduce the friction and wear between the metal part and the die; when the upper die 44 moves away, the limiting rod 45 rises, and then the oil in the lower die 47 enters the buffer tank 434 through the through hole, and the supporting spring 435 pushes the supporting rod 436 to rise, the supporting rod 436 pushes the supporting block 438 to rise, and the supporting block 438 pushes the supporting plate 437 to rise, and then the formed metal part is ejected, and the metal part is taken down through the unloading device 3; the supporting plate 437 can also filter the impurities washed off the metal part by the oil; the structure of the lubricating assembly 43 is simpler, and the practicability of the device is improved.

[0031] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and details are not described herein.

[0032] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the claims of the utility model.

Claims

1. A sheet metal stamping device, characterized in that, include: Machine base; stamping mechanism for processing sheet metal parts; The stamping mechanism includes: a processing frame, a hydraulic cylinder fixedly installed on the top of the processing frame, an upper die fixedly connected to the piston rod of the hydraulic cylinder, a vertical limiting rod fixedly connected to the bottom of the upper die, the limiting rod sliding and passing through the lower die, a damping spring sleeved on the limiting rod, and a lubrication assembly installed at the bottom of the processing frame; The lubrication assembly includes: a housing, a vertical fixed cylinder and a connecting pipe fixedly installed on the top of the housing, the connecting pipe connecting to a buffer box, the buffer box, the processing frame and the lower mold having evenly aligned through holes, a support plate slidably installed in the lower mold, the support plate being supported by a support block, a support rod fixedly connected to the bottom of the support block, and a support spring fixedly installed between the support rod and the top of the buffer box.

2. The sheet metal stamping device as described in claim 1, characterized in that, The limiting rod is slidably installed in the fixed cylinder, and the fixed cylinder is in communication with the box body.

3. The sheet metal stamping device as described in claim 1, characterized in that, The bottom of the processing frame is provided with a circular groove, and the support spring is located in the circular groove.

4. The sheet metal stamping device as described in claim 3, characterized in that, The support rod is slidably mounted in the circular groove, and the support rod slides through the bottom of the lower mold.

5. A sheet metal stamping device as described in claim 1, characterized in that, The support plate is provided with filter holes evenly distributed, while the support block has a hollow structure.

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