High-precision stamping die
Technical Field
The invention relates to the field of dies, in particular to a high-precision stamping die.
Background
A stamping die is a special processing device for processing materials into parts in cold stamping, called as a cold stamping die, and stamping is a pressure processing method for obtaining required parts by applying pressure to the materials by using a die arranged on a press machine at room temperature to generate separation or plastic deformation.
A high-precision stamping die of prior art patent No. 201911164335.6, comprising an upper die plate and a lower die plate; a first annular groove is formed in one side, close to the upper template, of the lower template; a second annular groove is formed in one side, away from the upper template, of the first annular groove; a supporting plate is elastically connected in the first annular groove through a spring; a squeezing bag is fixedly connected in the second annular groove; the lower template is positioned on the outer side of the first annular groove and is provided with first sliding chutes which are uniformly distributed; fixed sliding blocks are connected in the first sliding grooves in a sliding mode; the upper template is provided with a first groove; a fixing column is arranged in the first groove; the fixing column is hollow and the inner cavity of the fixing column is provided with a punch; third grooves which are uniformly distributed are formed in the inner wall of the fixing column; the third grooves are internally and slidably connected with fixed blocks; the invention achieves the purpose of fast replacing the punch by simplifying the fixing mode of the punch, thereby ensuring the precision of the punch and finally ensuring the precision of the product to reach the standard, but the slide block is blocked by the supporting plate and can not move in the process of extruding the air bag, so that the air bag is over-expanded to cause damage, the use time is influenced, the slide block needs to be frequently replaced, the pressing force is fixed, and when the moving distance is small, the redundant gas can not be discharged to cause damage to the air bag.
Disclosure of Invention
The invention mainly aims to overcome the defects of the prior art and provide a high-precision stamping die.
The invention is realized by adopting the following technical scheme: the utility model provides a high accuracy stamping die, its structure includes mould, guide pin bushing, briquetting, guide arm, location structure, bed die, it is equipped with the briquetting to go up the mould bottom, the both sides of going up the mould are equipped with the guide pin bushing, the guide arm runs through guide pin bushing and bottom and is connected with the bed die, location structure is installed at the bed die top, location structure is including driving actuating cylinder, hose, location jar, jacking spring, branch, slider, it is linked together through hose and location jar to drive actuating cylinder, the location jar is transversely placed, location jar bottom is connected with the slider through branch, the branch overcoat is equipped with the jacking spring.
Preferably, the positioning cylinder comprises a cylinder body, a piston rod and an air overflow structure, the piston is arranged in the cylinder body and connected with the piston rod, and the air overflow structure is arranged on the piston.
Preferably, the air overflow structure comprises a sliding structure and a pushing structure, the sliding structure is installed in the piston, the pushing structure is arranged in the piston rod, and the sliding structure is movably connected with the pushing structure.
Preferably, the piston comprises an air vent in the piston, a main rail and an auxiliary rail, one end of the auxiliary rail is communicated with the outer side of the piston, the other end of the auxiliary rail is communicated with the main rail, the other end of the auxiliary rail and the main rail form an arc, and one end of the auxiliary rail, which is communicated with the main rail, is communicated with the inner part of the cylinder body through the air vent.
Preferably, the sliding structure comprises a spring, an elastic block and an arc-shaped rod, the elastic block is arranged in the main track and connected with the top of the main track through the spring, the arc-shaped rod penetrates through the auxiliary track, the tail of the arc-shaped rod extends out of the piston, and the head of the arc-shaped rod is connected with the elastic block.
Preferably, the outer arc surface of the arc rod is provided with a notch.
As optimization, the pushing structure comprises a compression spring, a magnet block and a telescopic rod, one end of the telescopic rod is arranged in the piston rod, the compression spring is connected with the interior of the piston rod, the other end of the telescopic rod extends out of the piston rod, and the magnet block is arranged below the telescopic rod and is arranged on the side face of the piston rod.
As optimization, a triangular groove is formed in the bottom of one end, close to the compression spring, of the telescopic rod, an armature is embedded at the vamp of the triangular groove, and the triangular groove is matched with the magnet block.
As an optimization, the two sides of the magnet block are respectively provided with a convex block, the magnet block is provided with a sliding groove in sliding connection with the piston rod through the convex block, and the magnet block is positioned above the tail of the arc-shaped rod.
Preferably, the width of the main track is smaller than that of the auxiliary track.
Advantageous effects
When the invention is used, the pressing block can compress the driving cylinder in advance when the upper die is punched downwards, so that the piston rod of the positioning cylinder driven by the driving cylinder extends, thereby clamping and fixing a workpiece, and when the upper die is punched, the positioning cylinder can be compressed downwards along with the downward pressing of the upper die, thereby preventing the extrusion of the positioning cylinder, ensuring the smoothness of the clamping process, improving the defects of the prior art, when the piston rod clamps the workpiece and residual gas still exists in the driving cylinder, the piston rod further advances to press the telescopic rod inwards, so that the triangular groove of the telescopic rod pushes the magnet block to move downwards, the magnet block pushes the arc-shaped rod to rotate upwards, the gap of the arc-shaped rod moves to the vent hole, so that the redundant gas in the positioning cylinder is discharged, after the workpiece is removed, the telescopic rod resets, the magnet block can be adsorbed by the armature to reset, and the arc-shaped rod can also re-block the vent hole under the pushing of the spring, the interior of the positioning cylinder is sealed again.
Compared with the prior art, the invention has the beneficial effects that: the reasonable design of the positioning structure improves the defect that gas cannot be timely discharged in the prior art, the positioning process of a workpiece is smoother, and redundant gas can be discharged through the gas overflowing structure, so that the cylinder body is prevented from being broken by redundant gas.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural diagram of a high-precision stamping die according to the present invention.
Fig. 2 is a schematic structural diagram of the positioning structure of the present invention.
Fig. 3 is a schematic view of the internal structure of the positioning cylinder of the present invention.
FIG. 4 is a schematic structural diagram of a pushing structure according to the present invention.
Fig. 5 is a schematic structural view of the telescopic rod of the present invention.
Fig. 6 is a schematic view of the internal structure of the piston of the present invention.
Fig. 7 is a schematic structural view of the sliding structure of the present invention.
In the figure: the device comprises an upper die 1, a guide sleeve 2, a pressing block 3, a guide rod 4, a positioning structure 5, a lower die 6, a driving air cylinder 50, a hose 51, a positioning cylinder 52, a jacking spring 53, a support rod 54, a sliding block 55, a cylinder body 52a, a piston 52b, a piston rod 52c, an air overflow structure 52d, a sliding structure d1, a pushing structure d2, a vent hole b1, a main rail b2, an auxiliary rail b3, a spring d11, an elastic block d12, an arc-shaped rod d13, a compression spring d20, a magnet block d21, an expansion rod d22, a triangular groove d220, an armature d221 and a projection d 210.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-2, the present invention provides a high precision stamping die, which comprises: the structure of the device comprises an upper die 1, guide sleeves 2, a pressing block 3, a guide rod 4, a positioning structure 5 and a lower die 6, wherein the pressing block 3 is arranged at the bottom of the upper die 1, the guide sleeves 2 are arranged on two sides of the upper die 1, the guide rod 4 penetrates through the guide sleeves 2, the bottom of the guide sleeves is connected with the lower die 6, the positioning structure 5 is installed at the top of the lower die 6, the positioning structure 5 comprises a driving cylinder 50, a hose 51, a positioning cylinder 52, a jacking spring 53, a support rod 54 and a sliding block 55, the driving cylinder 50 is communicated with the positioning cylinder 52 through the hose 51, the positioning cylinder 52 is transversely placed, the bottom of the positioning cylinder 52 is connected with the sliding block 55 through the support rod 54, the jacking spring 53 is sleeved outside the support rod 54, and the jacking.
The working principle is as follows: when the pressing block 3 is used, the driving cylinder 50 can be compressed in advance when the upper die 1 performs downward stamping, the piston rod 52c of the positioning cylinder 52 driven by the driving cylinder 50 is extended, so that a workpiece is clamped and fixed, and when the upper die 1 performs stamping, the positioning cylinder 52 can be compressed downward along with the downward pressing of the upper die 1, so that the positioning cylinder 52 is prevented from being extruded, the smooth clamping process is ensured, and the defects of the prior art are overcome.
Example 2
Referring to fig. 1-7, the present invention provides a high precision stamping die, which comprises: the structure of the device comprises an upper die 1, guide sleeves 2, a pressing block 3, a guide rod 4, a positioning structure 5 and a lower die 6, wherein the pressing block 3 is arranged at the bottom of the upper die 1, the guide sleeves 2 are arranged at two sides of the upper die 1, the guide rod 4 penetrates through the guide sleeves 2, the bottom of the guide rods is connected with the lower die 6, the positioning structure 5 is installed at the top of the lower die 6, the positioning structure 5 comprises a driving cylinder 50, a hose 51, a positioning cylinder 52, a jacking spring 53, a support rod 54 and a sliding block 55, the driving cylinder 50 is communicated with the positioning cylinder 52 through the hose 51, the positioning cylinder 52 is transversely arranged, the bottom of the positioning cylinder 52 is connected with the sliding block 55 through the support rod 54, the jacking spring 53 is sleeved outside the support rod 54, the positioning cylinder 52 comprises a cylinder body 52a, a piston 52b, a piston rod 52c and an air overflow structure 52d, a piston 52b, the piston 52b is provided with an air spilling structure 52d, the air spilling structure 52d comprises a sliding structure d1 and a pushing structure d2, the sliding structure d1 is arranged in the piston 52b, the pushing structure d2 is arranged in the piston rod 52c, the sliding structure d1 is movably connected with the pushing structure d2, an air vent b1, a main track b2 and an auxiliary track b3 are arranged in the piston 52b, one end of the auxiliary track b3 is communicated with the outer side of the piston 52b, the other end of the auxiliary track b3 is communicated with the main track b2 and forms an arc shape, one end of the auxiliary track b3 communicated with the main track b2 is communicated with the inner part of the cylinder 52a through an air vent b1, the sliding structure d 56 comprises a spring d11, a spring block d12 and an arc-shaped rod d13, the spring block d 36 12 is arranged in the main track b 3687458 and is connected with the top of the main track b 11 through the spring d11, the arc-shaped rod d11 b 11 penetrates through the arc-shaped rod 11 b 36874, the head part is connected with an elastic block d12, the outer arc surface of the arc rod d13 is provided with a notch which is convenient for air to circulate, the pushing structure d2 comprises a compression spring d20, a magnet block d21 and a telescopic rod d22, one end of the telescopic rod d22 is arranged in the piston rod 52c and is connected with the inside of the piston rod 52c through the compression spring d20, the other end of the telescopic rod d22 extends out of the piston rod 52c, the magnet block d21 is arranged below the telescopic rod d22 and is arranged on the side surface of the piston rod 52c, the bottom of one end of the telescopic rod d22 close to the compression spring d20 is provided with a triangular groove d220, an armature d221 is embedded at the upper surface of the triangular groove d220, the triangular groove d220 is matched with the magnet block d21, the triangular groove d220 is designed to smoothly push the magnet block d21 downwards, the two sides of the magnet block d21 are respectively provided with a projection d210, and the magnet block 21 is connected with, the magnet block d21 is located above the tail of the arc-shaped rod d13, the projection d210 can prevent the magnet block d21 from separating from the piston rod 52c and can guide the movement of the magnet block d21, and the width of the main track b2 is smaller than that of the auxiliary track b3, so that the moving range of the elastic block d12 can be limited.
The working principle is as follows: after the piston rod 52c clamps the workpiece, when the residual gas still remains in the driving cylinder 50 and cannot be exhausted, the piston rod 52c further advances to press the telescopic rod d22 inwards, so that the triangular groove d220 of the telescopic rod d22 pushes the magnet block d21 to move downwards, the magnet block d21 pushes the arc rod d13 to rotate upwards, the notch of the arc rod d13 moves to the vent hole b1, the residual gas in the positioning cylinder 52 is exhausted, after the completion, the workpiece is removed, the telescopic rod d22 is reset, the magnet block d21 can be adsorbed by the armature d221 to reset, the arc rod d13 can also be pushed by the spring d11 to block the vent hole b1 again, and the interior of the positioning cylinder 52 is sealed again.
Compared with the prior art, the invention has the technical progress that: the reasonable design of the positioning structure improves the defect that gas cannot be timely discharged in the prior art, the positioning process of a workpiece is smoother, and redundant gas can be discharged through the gas overflowing structure, so that the cylinder body is prevented from being broken by redundant gas.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.