Rapid demolding mechanism for automobile part machining

Abstract

The utility model is applicable to the technical field of demoulding mechanisms, and provides a quick demoulding mechanism for automobile part processing, which comprises a lower template and an upper template arranged above the lower template in parallel, a lower die holder is fixedly mounted at the top of the lower template, a stamping cavity is arranged on the top wall of the lower die holder, a fixing plate is fixedly mounted on the bottom wall of the upper template, and a lower die holder is fixedly mounted on the fixing plate. A stamping cavity is formed in the fixing plate, a discharging plate is arranged on the bottom wall of the fixing plate and corresponds to the stamping cavity, a stamping block is vertically and fixedly connected into the stamping cavity, a discharging block is further arranged in the discharging plate and corresponds to the stamping block, and a reset demolding assembly movably connected with the discharging block is arranged in the fixing plate. And the stamped part enters the movable groove, then the upper mold plate drives the discharging plate to move upwards, the reset demolding assembly pushes the discharging block to reset to eject the finished part out of the movable groove, and automatic demolding of the part on the upper mold is completed.

Description

Technical Field

[0001] This utility model belongs to the technical field of demolding mechanisms, and in particular relates to a quick demolding mechanism for processing automotive parts. Background Technology

[0002] Stamping is a forming process that uses a press and dies to apply external force to sheet metal, strip, tube and profile materials, causing them to undergo plastic deformation or separation, thereby obtaining workpieces (stamped parts) of the required shape and size.

[0003] Chinese utility model patent CN215845367U discloses a stamping die for automotive parts, comprising: a base, a stamping mechanism, a die ejection mechanism, an auxiliary mechanism, and a communication mechanism. The stamping mechanism is fixedly installed on the top of the base, and the auxiliary mechanisms are symmetrically fixedly installed on the top of the base. In this utility model, the moving die pushes the sheet metal against the die ejection plate, causing the die ejection plate to descend. At this time, the die ejection plate pushes the guide rod down and compresses the push spring, causing the push spring to generate elastic force. After the sheet metal in the stamping groove is stamped, the hydraulic rod pushes the mounting plate and the moving die upward, causing the push spring to push the die ejection plate to reset. The die ejection plate then pushes the stamped sheet metal out of the stamping groove, solving the technical problem that the sheet metal is easily stuck in the die after stamping, making it difficult to remove the sheet metal.

[0004] However, the above-mentioned device has the following technical problems in actual use:

[0005] First, the above-mentioned device can only eject parts embedded in the lower mold groove, but when the parts are stuck in the upper mold, the above-mentioned device cannot complete the demolding operation of the parts stuck in the upper mold.

[0006] Second, the above-mentioned device cannot perform punching on the surface of the parts, and other molds are required for subsequent operations, which increases the working time and the investment and cost of molds and equipment. Utility Model Content

[0007] This utility model provides a quick demolding mechanism for automotive parts processing, aiming to solve the problems mentioned in the background art, such as the inability of the above-mentioned device to demold parts stuck on the upper mold, and the inability of the above-mentioned device to punch holes on the surface of the parts during the stamping process. On the one hand, it increases the working time, and on the other hand, it also increases the design cost and usage of the mold.

[0008] This utility model is implemented as follows: a quick demolding mechanism for processing automotive parts includes: a lower template and an upper template arranged parallel to it above the lower template. Multiple hydraulic rods are arranged between the upper template and the lower template. A lower mold base is fixedly installed on the top of the lower template, and a stamping cavity is formed on the top wall of the lower mold base. A fixing plate is fixedly installed on the bottom wall of the upper template, and a stripper plate is arranged on the bottom wall of the fixing plate corresponding to the stamping cavity. The stamping and unloading mechanism has: a stamping block is vertically fixed inside the stamping cavity; a stamping plate is arranged inside the stamping cavity outside the stamping block; multiple elastic reset members are arranged between the stamping plate and the inner bottom wall of the stamping cavity; a stripper block is also arranged inside the stripper plate corresponding to the stamping block; and a stripper block is arranged inside the fixing plate corresponding to the stripper block. The device features a resetting and demolding assembly with a movable connection. In this design, during stamping, the part to be stamped is placed on the lower die base, with the stamping blanking position positioned above the stamping block. The hydraulic rod output retracts, pulling the upper die plate closer to the lower die plate. The upper die plate then moves the stripper plate and stripper block closer to the part. When the stripper block presses against the surface of the part, it can no longer move downwards and pushes the lifting block into the cavity. However, the stripper plate continues to move downwards, pushing the stamping plate into the stamping cavity. The part splits, thus completing the stamping blanking. When the upper die plate is lifted and moves away from the lower die plate, the stamping plate resets under the action of the elastic reset component. Simultaneously, the resetting and demolding assembly pushes the stripper block to reset, thereby ejecting any parts that may be stuck in the movable slot, preventing them from getting stuck in the upper die, and completing the automatic demolding operation.

[0009] It should be explained that during the stamping process in this device, the unloading block and the stamping block cooperate to complete the stamping of the part. After stamping, the part enters the movable groove. Then, the upper die plate moves the unloading plate up, and the reset demolding component pushes the unloading block to reset and push the finished part out of the movable groove, thus completing the automatic demolding of the part on the upper die.

[0010] In addition, a punch is installed at a preset position on the unloading block in this device, and an unloading hole is set on the stamping block at the position corresponding to the punch. When the part is stamped and unloaded, the unloading block will drive the punch to contact the surface of the part, and the punch will perform punching on the part. At the same time, the push rod will push the waste into the unloading hole. The punching of the part is completed at the same time during the part unloading process.

[0011] Preferably, the elastic reset component includes: a fixed block fixedly installed on the bottom wall of the stamping cavity, the fixed block having a movable cavity inside, a through hole communicating with the movable cavity on the top wall of the fixed block, a buffer block slidably disposed in the through hole, the top wall of the buffer block being fixedly connected to the bottom wall of the stamping plate, and a through groove on the bottom wall of the buffer block, a first spring being fixedly installed in the through groove, the bottom end of the first spring abutting against the bottom wall of the movable cavity, and a limit block being fixedly connected to the outer wall of the buffer block, the outer diameter of the limit block being larger than the inner diameter of the through hole; in this scheme, when the upper template moves the unloading plate downward, the downward pressure of the unloading plate will be transmitted to the stamping cavity. On the pressure plate, the unloading block abuts against the stamping block (at this time, affected by the stamping block, the unloading block will not continue to move down and will shrink into the cavity, while squeezing and resetting the demolding component). The unloading plate will continue to move down and push the stamping plate into the stamping cavity. The bottom wall of the stamping plate drives the buffer block to move down. The buffer block gradually moves into the movable cavity through the through hole and squeezes the first spring. When the unloading plate moves up and the stamping plate loses the pressure from the top, the rebound kinetic energy of the first spring pushes the buffer block up. The buffer block pushes the stamping plate to reset. Since the buffer block is provided with a limit block on the outside, the buffer block cannot be separated from the movable cavity under the action of the limit block, thus ensuring the normal use of the device in the future.

[0012] It should be explained that the outer diameter of the buffer block and the inner diameter of the through hole in this device are in transition fit, and the size of the through hole is smaller than the size of the movable cavity. After the limiting plate moves up to the designated position with the buffer block, its top wall abuts against the inner top wall of the movable cavity.

[0013] Preferably, the unloading plate has a cavity inside, and a lifting block is movably installed in the cavity. The bottom wall of the unloading plate has a movable groove communicating with the cavity. The unloading block is slidably disposed in the movable groove. At least one set of the reset and demolding components is provided on the lifting block. In this scheme, a cavity is provided inside the unloading plate, and the lifting block is placed inside the cavity. The size of the movable groove is adapted to the size of the stamping block, and thus the size of the unloading block and the stamping block are adapted. The size of the movable groove is smaller than the size of the cavity. Therefore, when the reset and demolding components push the unloading block to move to the outside of the cavity, the unloading block will not detach from the movable groove due to the influence of the lifting block.

[0014] It should be explained that the unloading block and the lifting block can be assembled by means of integral molding or fixed installation (welding, bolt connection).

[0015] It should be noted that this device is equipped with at least two sets of reset and demolding components, and the reset and demolding components are symmetrically arranged on both sides of the punch.

[0016] Preferably, the reset and demolding assembly includes: a connecting groove formed on the fixed plate and communicating with the cavity; a movable rod fixedly connected to the lifting block; the top end of the movable rod being inserted into the connecting groove; a limiting ring fixedly installed on the inner wall of the bottom end of the connecting groove; a limiting plate fixedly connected to the outer wall of the movable rod above the limiting ring; and a second spring sleeved on the outer side of the movable rod between the limiting plate and the top wall of the connecting groove. In this scheme, when the unloading block contacts the part placed on top of the stamping block, the unloading block retracts into the cavity along the movable groove due to the influence of the stamping block. At this time, the lifting block moves upward synchronously and pushes the movable rod to retract into the connecting groove. The limiting plate moves towards the top wall of the connecting groove and squeezes the second spring. When the unloading plate moves away from the lower mold base, the second spring rebounds and pushes the limiting plate towards the limiting ring while pushing the movable rod out of the connecting groove. The movable rod pushes the lifting block downward, and the lifting block drives the unloading block to move into the movable groove, while pushing out the finished part that may be in the movable groove.

[0017] Preferably, the device further includes a punching mechanism, comprising: a punch disposed within the fixed plate and penetrating the unloading block; a receiving cavity is formed within the punch; a top block is fixedly connected to the inner top wall of the receiving cavity; a push rod is movably installed inside the receiving cavity; and a third spring is provided between the push rod and the top block. In this embodiment, through holes are concentrically formed on the fixed plate, the lifting block, and the unloading block; the top end of the punch is fixedly installed within the fixed plate and sequentially penetrates the fixed plate, the lifting block, and the unloading block. The punch has a perforation, with its bottom end extending from the bottom of the unloading block. An unloading hole is vertically opened on the top wall of the punch, connecting to its bottom wall. The inner diameter of the top of the unloading hole matches the outer diameter of the punch. When the unloading block is close to the part, the punch can be used to punch a hole at a specified position on the part. During punching, the push rod inside the punch will be compressed into the receiving cavity and squeeze the third spring. When the punching is completed, the push rod is no longer restricted, the third spring rebounds and pushes the push rod back to its original position, and pushes the waste material into the unloading hole.

[0018] Preferably, the bottom end of the stamping block penetrates the lower template, and an unloading hole is provided inside the block corresponding to the punch. The push rod is used to push the waste material after being punched by the punch into the unloading hole. In this scheme, the inner diameter of the unloading hole is adapted to the outer diameter of the punch, which can ensure that the punch can completely punch out the specified hole on the surface of the part. The unloading hole is connected to the bottom wall of the stamping block, which can facilitate the discharge of the punched waste material.

[0019] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a quick demolding mechanism for processing automotive parts.

[0020] 1. In this device, during the stamping process, the unloading block and the stamping block cooperate to complete the stamping of the part. The stamped part enters the movable groove, and then the upper template drives the unloading plate to move up. The reset demolding component pushes the unloading block to reset and push the finished part out of the movable groove, thus completing the automatic demolding of the part on the upper mold.

[0021] 2. In this device, a punch is installed at a preset position on the unloading block, and an unloading hole is set on the stamping block at the position corresponding to the punch. When the part is stamped and unloaded, the unloading block will drive the punch to contact the surface of the part, and the punch will perform punching on the part. At the same time, the push rod will push the waste into the unloading hole. The punching of the part is completed at the same time during the part unloading process. Attached Figure Description

[0022] Figure 1 This is a front sectional view of the present invention;

[0023] Figure 2 This utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0024] Figure 3 This utility model Figure 1 Enlarged view of the structure at point B;

[0025] In the picture:

[0026] 1. Lower die plate; 11. Lower die base; 111. Stamping cavity; 12. Hydraulic rod;

[0027] 2. Upper template; 21. Fixed plate; 22. Unloading plate; 221. Chamber; 222. Lifting block; 223. Movable groove;

[0028] 3. Stamping and blanking mechanism; 31. Stamping block; 32. Stamping plate; 33. Elastic reset component; 331. Fixed block; 332. Movable cavity; 333. Buffer block; 334. Through slot; 335. First spring; 336. Limiting block; 34. Unloading block; 35. Reset and demolding assembly; 351. Connecting groove; 352. Movable rod; 353. Limiting ring; 354. Limiting plate; 355. Second spring;

[0029] 4. Punching mechanism; 41. Punch; 42. Receiving cavity; 43. Top block; 44. Push rod; 45. Third spring; 46. Unloading hole. Detailed Implementation

[0030] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0031] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0032] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Please see Figure 1-3 This utility model provides a technical solution: a quick demolding mechanism for processing automotive parts, comprising: a lower template 1 and an upper template 2 arranged parallel to it above the template 1, with multiple hydraulic rods 12 arranged between the upper template 2 and the lower template 1, wherein a lower mold base 11 is fixedly installed on the top of the lower template 1, and a stamping cavity 111 is formed on the top wall of the lower mold base 11, a fixing plate 21 is fixedly installed on the bottom wall of the upper template 2, and a stripper plate 22 is provided on the bottom wall of the fixing plate 21 corresponding to the stamping cavity 111, and a stamping and unloading mechanism 3, which has: a stamping block 31 is vertically fixedly connected inside the stamping cavity 111, a stamping plate 32 is provided inside the stamping cavity 111 outside the stamping block 31, multiple elastic reset members 33 are arranged between the stamping plate 32 and the inner bottom wall of the stamping cavity 111, a stripper block 34 is also provided in the stripper plate 22 corresponding to the stamping block 31, and a reset demolding assembly 35 movably connected to the stripper block 34 is provided in the fixing plate 21.

[0036] Specifically, in this device, there are at least two hydraulic rods 12, which are symmetrically arranged on both sides of the lower mold base 11. The cylinder of the hydraulic rod 12 is fixedly installed on the lower template 1, and the output end is fixedly connected to the bottom wall of the upper template 2.

[0037] Furthermore, the first spring 335, the second spring 355, and the third spring 45 in this device can all be replaced by rubber pads or rubber rods cut to a specified size.

[0038] Furthermore, the elastic reset member 33 includes: a fixed block 331 fixedly installed on the bottom wall of the stamping cavity 111, a movable cavity 332 is opened inside the fixed block 331, a through hole communicating with the movable cavity 332 is opened on the top wall of the fixed block 331, a buffer block 333 is slidably arranged in the through hole, the top wall of the buffer block 333 is fixedly connected to the bottom wall of the stamping plate 32, and a through groove 334 is opened on the bottom wall of the buffer block 333, a first spring 335 is fixedly installed in the through groove 334, the bottom end of the first spring 335 abuts against the bottom wall of the movable cavity 332, and a limit block 336 is also fixedly connected to the outer wall of the buffer block 333, the outer diameter of the limit block 336 is larger than the inner diameter of the through hole.

[0039] Furthermore, the unloading plate 22 has a cavity 221 inside, and a lifting block 222 is movably installed in the cavity 221. The bottom wall of the unloading plate 22 has a movable groove 223 that connects to the cavity 221. The unloading block 34 is slidably disposed in the movable groove 223. At least one set of reset demolding components 35 is provided on the lifting block 222.

[0040] Furthermore, the reset and demolding assembly 35 includes: a connecting groove 351 formed on the fixed plate 21 and communicating with the cavity 221; a movable rod 352 is erected and fixed on the lifting block 222; the top end of the movable rod 352 is inserted into the connecting groove 351; a limiting ring 353 is fixedly installed on the inner wall of the bottom end of the connecting groove 351; a limiting plate 354 is fixedly connected to the outer wall of the movable rod 352 above the limiting ring 353; and a second spring 355 is sleeved on the outer side of the movable rod 352 between the limiting plate 354 and the inner top wall of the connecting groove 351.

[0041] Furthermore, it also includes a punching mechanism 4, which has: a punch 41 disposed in the fixed plate 21 and penetrating the unloading block 34, a receiving cavity 42 opened in the punch 41, a top block 43 fixedly connected to the inner top wall of the receiving cavity 42, and a push rod 44 movably installed inside the receiving cavity 42, and a third spring 45 disposed between the push rod 44 and the top block 43.

[0042] Specifically, this device only states that a punch 41 that is movably connected to the unloading block 34 can be installed in the fixed plate 21, but does not impose many restrictions on the installation position of the punch 41. In specific implementation, the staff can design and plan the installation position of the punch 41 according to the actual position. This solution will not elaborate further.

[0043] In addition, in this device, the punch 41 is T-shaped, so a T-shaped groove is provided on the fixing plate 21 to accommodate the end of the punch 41. This method can prevent the punch 41 from falling off. At the same time, the internal accommodating cavity 42 of the punch 41 can be set as a structure that is wider at the top and narrower at the bottom. Similarly, the push rod 44 is also set as a structure that is wider at the top and narrower at the bottom. This can effectively prevent the push rod 44 from falling off due to the rebound of the third spring 45.

[0044] Furthermore, the bottom end of the stamping block 31 penetrates the lower template 1, and a discharge hole 46 is opened inside the punch 41. The push rod 44 is used to push the waste material after being stamped by the punch 41 into the discharge hole 46.

[0045] Specifically, in this device, the inner diameter of the top end of the discharge hole 46 is smaller than the inner diameter of its bottom end. Therefore, it can be understood that the diameter of the discharge hole 46 in the stamping block 31 gradually increases from top to bottom. The purpose is to facilitate the rapid discharge of waste materials and avoid the accumulation of waste materials that cannot be discharged smoothly, which could cause the punch 41 to bend or break.

[0046] Working principle and usage process of this utility model:

[0047] Place the part on the lower die holder 11 and align the stamping position with the stamping block 31;

[0048] Subsequently, the output end of the hydraulic rod 12 retracts, pulling the upper template 2 downward, causing the stripper plate 22 to move closer to the lower mold base 11. The stripper block 34 abuts against the stamping block 31. Then, the stripper block 34 moves into the cavity 221 and squeezes and resets the demolding assembly 35. The stripper plate 22 continues to move downward, pushing the stamping plate 32 into the stamping cavity 111. The stripper block 34 cooperates with the stamping block 31 to stamp and unload the part. Then, the punch 41 punches holes in the part, and the pusher rod 44 pushes the waste into the stripper hole 46.

[0049] Subsequently, the hydraulic rod 12 extends to push the upper template 2 upward, and the reset demolding assembly 35 pushes the unloading block 34 to reset and push out the part stuck in the movable groove 223, thus completing the automatic demolding of the part.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick demolding mechanism for processing automotive parts, characterized in that: include: The lower template (1) and the upper template (2) are arranged parallel to it above it, and a plurality of hydraulic rods (12) are arranged between the upper template (2) and the lower template (1); The lower mold plate (1) is fixedly installed with a lower mold base (11) on its top, and a stamping cavity (111) is opened on the top wall of the lower mold base (11). A fixing plate (21) is fixedly installed on the bottom wall of the upper mold plate (2), and a stripping plate (22) is provided on the bottom wall of the fixing plate (21) corresponding to the stamping cavity (111). The stamping blanking mechanism (3) has the following features: A stamping block (31) is vertically fixed inside the stamping cavity (111). A stamping plate (32) is provided inside the stamping cavity (111) outside the stamping block (31). A plurality of elastic reset members (33) are provided between the stamping plate (32) and the inner bottom wall of the stamping cavity (111). The unloading plate (22) is also provided with an unloading block (34) corresponding to the stamping block (31), and the fixing plate (21) is provided with a reset demolding assembly (35) that is movably connected to the unloading block (34).

2. The quick demolding mechanism for automotive parts processing as described in claim 1, characterized in that: The elastic reset member (33) includes: A fixing block (331) is fixedly installed on the bottom wall of the stamping cavity (111). The fixing block (331) has a movable cavity (332) inside, and a through hole communicating with the movable cavity (332) is opened on the top wall of the fixing block (331). A buffer block (333) is slidably disposed in the through hole. The top wall of the buffer block (333) is fixed to the bottom wall of the stamping plate (32). A through groove (334) is provided on the bottom wall of the buffer block (333). A first spring (335) is fixedly installed in the through groove (334). The bottom end of the first spring (335) abuts against the bottom wall of the movable cavity (332). A limiting block (336) is also fixed to the outer wall of the buffer block (333), and the outer diameter of the limiting block (336) is larger than the inner diameter of the through hole.

3. The quick demolding mechanism for automotive parts processing as described in claim 1, characterized in that: The unloading plate (22) has a cavity (221) inside, and a lifting block (222) is movably installed in the cavity (221). The bottom wall of the unloading plate (22) has a movable groove (223) that communicates with the cavity (221), and the unloading block (34) is slidably disposed in the movable groove (223). At least one set of the reset and demolding components (35) is provided on the lifting block (222).

4. The quick demolding mechanism for automotive parts processing as described in claim 3, characterized in that: The reset and demolding assembly (35) includes: A connecting groove (351) is formed on the fixed plate (21) and communicates with the chamber (221). A movable rod (352) is erected and fixed on the lifting block (222). The top end of the movable rod (352) is inserted into the connecting groove (351). A limiting ring (353) is fixedly installed on the inner wall of the bottom end of the connecting groove (351), and a limiting plate (354) is fixedly connected to the outer wall of the movable rod (352) above the limiting ring (353). A second spring (355) is sleeved on the outer side of the movable rod (352) between the limiting plate (354) and the inner top wall of the connecting groove (351).

5. The quick demolding mechanism for automotive parts processing as described in claim 1, characterized in that: It also includes a punching mechanism (4), which has: A punch (41) is disposed inside the fixed plate (21) and penetrates the unloading block (34). A receiving cavity (42) is provided inside the punch (41). A top block (43) is fixedly connected to the inner top wall of the receiving cavity (42). A push rod (44) is movably installed inside the receiving cavity (42). A third spring (45) is provided between the push rod (44) and the top block (43).

6. The quick demolding mechanism for automotive parts processing as described in claim 5, characterized in that: The bottom end of the stamping block (31) penetrates the lower template (1), and a discharge hole (46) is opened inside it corresponding to the punch (41). The push rod (44) is used to push the waste material after being stamped by the punch (41) into the discharge hole (46).

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