Anti-springback stamping die
By introducing a fixed die locking mechanism and a movable adjusting mechanism into the stamping die, the problem of die loosening caused by hydraulic system imbalance is solved, the movable die is stably locked, wear is prevented, and the forming quality of the die casting is ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-31
AI Technical Summary
When the hydraulic system is unbalanced or the power is cut off, the moving die of the existing stamping die is prone to loosening due to the reaction of internal stress of the material, resulting in die springback and wear.
An anti-springback stamping die was designed, which adopts a combination die, a fixed die locking mechanism, a movable distance adjustment mechanism and a width adjustment mechanism. Through the cooperation of the clamping components and the hydraulic system, it is ensured that the movable die remains locked in the event of loss of force, preventing loosening and wear.
This effectively prevents the moving mold from loosening or detaching due to loss of force, reduces mold wear, and ensures the molding quality of die-cast parts.
Smart Images
Figure CN224058546U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping die technology, specifically to an anti-springback stamping die. Background Technology
[0002] Stamping dies are divided into fixed dies and movable dies. The movable die is installed on the hydraulic system of the press, and the fixed die is installed on the worktable. When the press drives the movable die to stamp the material into the interior of the fixed die, the material can be quickly formed under the die casting. It is widely used in various fields.
[0003] However, existing stamping dies still have certain defects in actual use. Since the movable die mainly relies on the hydraulic system to drive it, when the movable die becomes unbalanced during the die casting process or when the hydraulic system temporarily stops due to power failure, the movable die will loosen due to the internal stress reaction of the material. In severe cases, this will cause the die-cast parts to wear due to the springback of the die.
[0004] In view of this, an anti-springback stamping die was designed to solve the above problems. Utility Model Content
[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.
[0006] Therefore, the technical solution adopted by this utility model is as follows:
[0007] An anti-springback stamping die includes a combined die, two sets of fixed die locking mechanisms disposed outside the combined die, two sets of movable adjusting mechanisms disposed on the two sets of fixed die locking mechanisms, and a width-adjusting mechanism disposed directly below the two sets of fixed die locking mechanisms; the fixed die locking mechanism includes a base plate disposed on the fixed die inside the combined die, an anti-detachment wing plate disposed inside the base plate, and a limiting rod installed at the outer end of the base plate; the movable adjusting mechanism includes a reinforcing post disposed outside the limiting rod, a fastener disposed outside the reinforcing post, a clamping assembly installed on the fastener, an outer frame disposed inside the clamping assembly, and a top plate disposed on the outer frame; the top plate is disposed on the movable die inside the combined die.
[0008] In a preferred embodiment, the present invention can be further configured as follows: the clamping assembly includes a housing, a threaded sleeve mounted on the top of the housing, a second lead screw disposed inside the threaded sleeve, a pressure plate movably mounted on the bottom end of the second lead screw, two second cantilever arms movably mounted on the pressure plate, a stabilizing baffle plate movably mounted at the bottom of the two second cantilever arms, a clamping element disposed within the stabilizing baffle plate, a limiting slide plate movably mounted inside the housing, and two compression springs disposed on two guide rods inside the clamping element.
[0009] In a preferred embodiment, the present invention can be further configured such that the movable adjustment mechanism also includes two pins;
[0010] The pin has evenly distributed insertion holes in the posts at both ends, and the inner end of the pin is adapted to pass through the insertion holes.
[0011] In a preferred embodiment, the present invention can be further configured such that: two sliding grooves are provided inside the top plate, and a second guide rod is provided inside the sliding groove, and a third spring is provided outside the second guide rod;
[0012] The raised plate at the top of the outer frame is movably mounted on the outside of the second guide rod.
[0013] In a preferred embodiment, the present invention can be further configured such that: a slide rail is provided inside the base plate, and two first guide rods are provided inside the slide rail;
[0014] A first spring is provided on the outside of the two first guide rods, and the anti-detachment wing plate is movably installed on the outside of the two first guide rods;
[0015] A slider is installed at the bottom of the base plate;
[0016] The limiting rod is provided with a second spring on its outside, and the inner end of the second spring is adapted to bear pressure on the outer wall of the reinforcing pile.
[0017] In a preferred embodiment, the present invention can be further configured as follows: the width-adjusting mechanism includes a beam rail disposed outside the slider, two pads fixedly installed at the bottom of the beam rail, a first lead screw movably installed inside the two pads, a support plate disposed on the threaded section of the first lead screw, and two first cantilever arms movably installed at both ends of the support plate.
[0018] The other end of the first cantilever is movably mounted on the clamp at the bottom of the anti-detachment wing plate.
[0019] In a preferred embodiment, the present invention can be further configured such that: the outer side of the anti-detachment wing plate is provided with evenly distributed trapezoidal anti-detachment baffles, and the end face of the fastener extending through the outer shell is adapted to be fastened between two adjacent trapezoidal anti-detachment baffles.
[0020] In a preferred embodiment, the present invention can be further configured such that the length of the top plate is twice the length of the bottom plate.
[0021] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:
[0022] 1. This utility model provides two sets of fixed mold locking mechanisms symmetrically distributed on both sides of the fixed mold and two sets of movable adjusting mechanisms symmetrically distributed on both sides of the movable mold. When the hydraulic system in the press pushes the movable mold closer to the fixed mold, the material placed on the fixed mold can be effectively die-cast. When a sudden situation occurs and the movable mold loses its force, the clamping component can effectively lock the anti-detachment wing plate in the auxiliary movable mold, thereby avoiding wear of the movable mold due to the internal stress reaction of the object. Attached Figure Description
[0023] Figure 1 This is a schematic diagram illustrating the use of this utility model;
[0024] Figure 2 This is a partial schematic diagram of the present invention;
[0025] Figure 3 This is a schematic diagram of the width-adaptive mechanism of this utility model;
[0026] Figure 4 This is a schematic diagram of the fixed mold locking mechanism of this utility model;
[0027] Figure 5 This is an exploded view of the movable adjustment mechanism of this utility model;
[0028] Figure 6 This is an exploded view of the clamping assembly of this utility model.
[0029] Figure label:
[0030] 100. Combination mold;
[0031] 200. Fixed mold locking mechanism; 210. Base plate; 220. First guide rod; 230. First spring; 240. Anti-detachment wing plate; 250. Slider; 260. Limiting rod; 270. Second spring;
[0032] 300. Adjustable distance mechanism; 310. Reinforcing pile; 320. Fastener; 330. Clamping assembly; 331. Housing; 332. Screw sleeve; 333. Second lead screw; 334. Pressure plate; 335. Second cantilever; 336. Stabilizing baffle; 337. Clamping element; 338. Limiting slide plate; 339. Compression spring; 340. Pin; 350. Outer frame; 360. Top plate; 370. Second guide rod; 380. Third spring;
[0033] 400, Width adjustment mechanism; 410, Beam rail; 420, Foot pad; 430, First lead screw; 440, Support plate; 450, First cantilever. Detailed Implementation
[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.
[0035] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.
[0036] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing an anti-rebound stamping die. Example 1
[0037] Combination Figures 1-6 As shown, the present invention provides an anti-springback stamping die, comprising a combined die 100, two sets of fixed die locking mechanisms 200 disposed outside the combined die 100, two sets of movable adjusting mechanisms 300 disposed on the two sets of fixed die locking mechanisms 200, and a width-adjusting mechanism 400 disposed directly below the two sets of fixed die locking mechanisms 200. The two sets of fixed die locking mechanisms 200 are used to adapt and lock the fixed dies inside the combined die 100, and the two sets of movable adjusting mechanisms 300 are used to adapt and lock the movable dies inside the combined die 100. The movable adjusting mechanisms 300 are engaged outside the fixed die locking mechanisms 200 to prevent the movable dies from falling off or loosening. The width-adjusting mechanism 400 is used to adjust the fixed die locking mechanisms 200 and the movable adjusting mechanisms 300 outward.
[0038] The fixed mold locking mechanism 200 includes a base plate 210 disposed on the fixed mold inside the combined mold 100, an anti-detachment wing plate 240 disposed inside the base plate 210, and a limiting rod 260 installed on the outer end of the base plate 210.
[0039] The movable adjustment mechanism 300 includes two pins 340, a reinforcing post 310 disposed outside the limit rod 260, a fastener 320 disposed outside the reinforcing post 310, a clamping assembly 330 mounted on the fastener 320, an outer frame 350 disposed inside the clamping assembly 330, and a top plate 360 disposed on the outer frame 350.
[0040] The top plate 360 has two sliding grooves inside, and a second guide rod 370 is installed in the sliding groove. A third spring 380 is installed outside the second guide rod 370.
[0041] The raised plate on the top of the outer frame 350 is movably mounted on the outside of the second guide rod 370;
[0042] The top plate 360 is set on the movable mold inside the combined mold 100;
[0043] The width-adjusting mechanism 400 includes a beam rail 410 disposed outside the slider 250, two pads 420 fixedly installed at the bottom of the beam rail 410, a first lead screw 430 movably installed inside the two pads 420, a support plate 440 disposed on the threaded section of the first lead screw 430, and two first cantilever 450 movably installed at both ends of the support plate 440.
[0044] The other end of the first cantilever 450 is movably mounted on the clamp at the bottom of the anti-detachment wing plate 240.
[0045] The fixed mold inside the combined mold 100 is pre-installed on the top of the external workbench, and the movable mold inside the combined mold 100 is installed on the hydraulic system of the external press. After the bottom wheel of the first lead screw 430 is rotated counterclockwise, the support plate 440 will pull the two first cantilever 450 to extend downward. At this time, the two anti-detachment wing plates 240 will cooperate with the two base plates 210 to fit and lock the two sides of the fixed mold.
[0046] After the two sets of fixed mold locking mechanisms 200 clamp the fixed mold, the two sets of movable adjusting mechanisms 300, which move laterally under pressure, can then adapt and engage with the movable mold. When the hydraulic system pushes the movable mold toward the fixed mold, the material can be effectively die-cast. Finally, the two sets of movable adjusting mechanisms 300 will be synchronously fastened along the outer side of the two sets of fixed mold locking mechanisms 200. At this time, the movable mold and the fixed mold can perform aging treatment on the die-cast object, while also preventing the movable mold from loosening or demolding due to the loss of hydraulic system force. Example 2
[0047] Combination Figure 4 and Figure 5 As shown, based on embodiment 1, a slide rail is provided inside the base plate 210, and two first guide rods 220 are provided inside the slide rail;
[0048] Two first guide rods 220 are provided with first springs 230 on their exteriors, and anti-detachment wing plates 240 are movably installed on the exteriors of the two first guide rods 220.
[0049] Preferably, the inner ends of the two first springs 230 are adapted to bear pressure on the outer wall of the anti-detachment wing plate 240.
[0050] A slider 250 is installed on the bottom of the base plate 210;
[0051] The limiting rod 260 is provided with a second spring 270 on its outside, and the inner end of the second spring 270 is adapted to bear pressure on the outer wall of the reinforcing pile 310.
[0052] The outer side of the anti-detachment wing plate 240 is provided with evenly distributed trapezoidal anti-detachment baffles, and the end face of the fastener 337 extending through to the outside of the outer shell 331 is adapted to be fastened between two adjacent trapezoidal anti-detachment baffles.
[0053] The length of the top plate 360 is twice the length of the bottom plate 210.
[0054] Preferably, different numbers of trapezoidal anti-detachment baffles are provided on the outer wall of the anti-detachment wing plate 240 according to the height of the fixed mold of different sizes, and the spacing between two adjacent trapezoidal anti-detachment baffles can be appropriately shortened;
[0055] After the material is die-cast by the movable mold and the fixed mold, the demolding process can directly extend the two sets of movable adjustment mechanisms 300 outward along the two limit rods 260 until the two sets of movable adjustment mechanisms 300 quickly disengage from the movable mold. Finally, the movable mold can be quickly lifted upward by the hydraulic system, and the die-cast object can be effectively removed. Example 3
[0056] Combination Figure 5 and Figure 6 As shown, in the above embodiment, evenly distributed insertion holes are provided in the posts at both ends of the pin 340, and the inner end of the pin 340 is adapted to penetrate into the insertion hole.
[0057] The clamping assembly 330 includes a housing 331, a threaded sleeve 332 mounted on the top of the housing 331, a second lead screw 333 disposed inside the threaded sleeve 332, a pressure plate 334 movably mounted on the bottom end of the second lead screw 333, two second cantilever arms 335 movably mounted on the pressure plate 334, a stabilizing baffle 336 movably mounted on the bottom of the two second cantilever arms 335, a clamping member 337 disposed inside the stabilizing baffle 336, a limiting slide plate 338 movably mounted inside the housing 331, and two compression springs 339 disposed on two guide rods inside the clamping member 337.
[0058] Preferably, the two walls of the outer shell 331 are provided with symmetrically distributed through holes, and the protruding pads at both ends of the limiting slide plate 338 are movably installed in the two through holes. When the fixed mold locking mechanism 200 and the movable adjustment mechanism 300 are compressed and expand outward, the pressure between the clamp 337 and the two trapezoidal anti-detachment baffles will increase. Therefore, the second lead screw 333 is appropriately loosened by the wrench. At this time, the pressure plate 334 will drive the two second cantilever 335 to rise, and the clamp 337 will appropriately shrink towards the inner cavity of the outer shell 331, so as to facilitate the fixed mold locking mechanism 200 and the movable adjustment mechanism 300 to adapt to molds of different widths.
[0059] The working principle and usage process of this utility model are as follows: Limiting holes are pre-made on both sides of the fixed mold and the movable mold in the combined mold 100 of the appropriate size. Then, the fixed mold in the combined mold 100 is fixed on the worktable using a clamp until the fixed mold and the worktable maintain a certain distance.
[0060] Next, adjust the wheel at the bottom of the first lead screw 430. As the first lead screw 430 rotates counterclockwise, the support plate 440 will be pushed downward at a constant speed by the assisting force. The two first cantilever arms 450 will then pull the two sets of fixed mold locking mechanisms 200 to clamp the sides of the fixed mold. At this time, the horizontal beam rail 410 is set on the top of the external fixture.
[0061] After the two sets of fixed mold locking mechanisms 200 clamp the fixed mold inside the combined mold 100, the two reinforcing piles 310 set outside the two limit rods 260 will pull the two sets of clamping components 330 closer to the two sides of the movable mold inside the combined mold 100, until the inner ends of the two top plates 360 are inserted into the insertion holes on the two side walls of the movable mold. At the same time, the inner ends of the two bottom plates 210 will also be inserted into the insertion holes on the two sides of the fixed mold.
[0062] As the two reinforcing piles 310 are pulled outward along the two limiting rods 260, the two sets of movable adjusting mechanisms 300, which are relatively expanded, can be withdrawn from the two sets of fixed mold locking mechanisms 200. The movable mold inside the combined mold 100, under the traction of the external hydraulic press, will drive the two sets of movable adjusting mechanisms 300 to rise upward. When the material to be stamped is delivered to the gap between the fixed mold and the movable mold, the external hydraulic press pushes the movable mold to descend at a uniform speed. The two sets of clamping components 330 will then fit and clamp along the outer side of the two anti-detachment wing plates 240. At this time, the material to be stamped can be forcibly locked by the two sets of fixed mold locking mechanisms 200 and the two sets of movable adjusting mechanisms 300 after the external hydraulic press is depressurized, so as to avoid the internal stress of the material from causing the movable mold to loosen or detach, thereby reducing the wear of the molded object due to the loosening of the movable mold.
[0063] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A springback-proof press tool comprising a combined die (100), characterized in that, Two sets of fixed mold locking mechanisms (200) are arranged outside the combined mold (100), two sets of movable distance adjusting mechanisms (300) are arranged on the two sets of fixed mold locking mechanisms (200), and a width adjusting mechanism (400) is arranged directly below the two sets of fixed mold locking mechanisms (200); The fixed mold locking mechanism (200) comprises a bottom plate (210) arranged on the fixed mold in the combined mold (100), an anti-falling wing plate (240) arranged in the bottom plate (210), and a limiting rod (260) mounted on the outer end of the bottom plate (210); The movable distance adjusting mechanism (300) comprises a reinforcing pile (310) arranged outside the limiting rod (260), a fastener (320) arranged outside the reinforcing pile (310), a clamping assembly (330) mounted on the fastener (320), an outer frame (350) arranged in the clamping assembly (330), and a top plate (360) arranged on the outer frame (350); The top plate (360) is arranged on the movable mold in the combined mold (100).
2. A non-rebound stamping die according to claim 1, wherein The clamping assembly (330) comprises a shell (331), a screw sleeve (332) mounted on the top of the shell (331), a second lead screw (333) arranged in the screw sleeve (332), a booster plate (334) movably mounted on the bottom end of the second lead screw (333), two second cantilevers (335) movably mounted on the bottom of the two second cantilevers (335), a stability baffle (336) movably mounted on the two second cantilevers (335), a clamping piece (337) arranged in the stability baffle (336), a limiting sliding plate (338) movably mounted in the shell (331), and two compression springs (339) arranged on the two guide rods inside the clamping piece (337).
3. A non-rebound stamping die according to claim 1, wherein The movable distance adjusting mechanism (300) further comprises two latches (340); The stand inside the two ends of the latch (340) is provided with uniformly distributed insertion holes, and the inner end of the latch (340) is adapted to penetrate into the insertion hole.
4. A non-rebound stamping die according to claim 1, wherein The inside of the top plate (360) is provided with two sliding grooves, and a second guide rod (370) is arranged in the sliding groove, and a third spring (380) is arranged outside the second guide rod (370); The convex plate on the top of the outer frame (350) is movably mounted outside the second guide rod (370).
5. A non-rebound stamping die according to claim 1, wherein The inside of the bottom plate (210) is provided with a sliding channel, and two first guide rods (220) are arranged in the sliding channel; The outside of the two first guide rods (220) is provided with a first spring (230), and the anti-falling wing plate (240) is movably mounted outside the two first guide rods (220); The bottom of the bottom plate (210) is provided with a sliding block (250); The outside of the limiting rod (260) is provided with a second spring (270), and the inner end of the second spring (270) is adapted to bear pressure on the outer wall of the reinforcing pile (310).
6. A non-rebound stamping die according to claim 1, wherein The suitable width mechanism (400) comprises a beam rail (410) arranged outside the sliding block (250), two pads (420) fixedly arranged at the bottom of the beam rail (410), a first lead screw (430) movably arranged in the two pads (420), a supporting plate (440) arranged on a threaded segment of the first lead screw (430), and two first cantilever arms (450) movably arranged at two ends of the supporting plate (440). The other end of the first cantilever arm (450) is movably arranged on a chuck at the bottom of the anti-disengagement wing plate (240).
7. A non-rebound stamping die according to claim 1, wherein The outer side of the anti-disengagement wing plate (240) is provided with uniformly distributed trapezoidal anti-disengagement baffles, and the clamping piece (337) penetrates through the end face outside the shell (331) and is adaptively clamped between two adjacent trapezoidal anti-disengagement baffles.
8. A non-rebound stamping die according to claim 1, wherein The length of the top plate (360) is twice the length of the bottom plate (210).