A stamping die for processing stamped parts

Abstract

This utility model relates to the field of mold technology and discloses a stamping die for processing stamped parts, including a support base, a top bracket fixedly mounted on the upper surface of the support base, a fixed mold fixedly mounted on the upper surface of the support base, and a demolding component provided below the support base. By providing the demolding component, in conjunction with the driving of the moving mold, the support ring drives the ejector rod and contact ball to impact upwards. After the contact ball contacts the arc-shaped inner top, it randomly moves along the arc surface to the periphery. As the contact ball touches the top, the tooth groove disengages from the contact wheel's clamping position until the ejector rod moves down a certain distance and the contact wheel re-enters the tooth groove. Then, the ejector rod continues to move upwards with the drive of the support ring and lifting plate, repeating the above process. The contact ball continuously generates random impact forces on the inner surface of the arc-shaped inner top, better facilitating the movement and demolding of the stamped part embedded in the fixed mold, improving the demolding efficiency and production efficiency of the device.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a stamping die for processing stamped parts. Background Technology

[0002] Stamping dies are a type of process equipment used in stamping to process materials into workpieces or semi-finished products. They are a major process equipment in industrial production. Stamping dies can be used to produce parts by using rolled steel plates or strips produced in large quantities by metallurgical plants as blanks. Moreover, no heating is required during production, and they have the advantages of high production efficiency, good quality, light weight, and low cost.

[0003] According to a stamping die for pressing parts (Announcement No.: CN210523600U) published in the above application, the stamping unit is set up to drive the rotation of the inertia wheel by the transmission of the rotating shaft. The rotation of the inertia wheel drives the stamping seat to move, which increases the stamping force during the stamping process and saves energy.

[0004] However, in actual use, the stamping die needs to continuously impact the fixed die during the processing, which may cause the product to adhere tightly to the inner surface of the fixed die during the forming process. This has an adverse effect on the efficiency of subsequent demolding and reduces the overall performance of the stamping die. In view of this, we propose a stamping die for stamping parts processing. Utility Model Content

[0005] The purpose of this utility model is to provide a stamping die for processing stamped parts, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a stamping die for processing stamped parts, comprising a support base, a top frame fixedly mounted on the upper surface of the support base, a hydraulic cylinder fixedly mounted on the upper surface of the top frame, a movable die fixedly connected to the output end of the hydraulic cylinder, a fixed die fixedly mounted on the upper surface of the support base, and a demolding assembly disposed below the support base, the demolding assembly comprising:

[0007] The T-shaped disk is movably mounted on the bottom inner wall of the fixed mold. The lower surface of the T-shaped disk has an arc-shaped inner top. The lower surface of the moving mold is fixedly connected to a pull rod. A sleeve is fitted on the outer wall of the pull rod. A lifting plate is fixedly connected to the bottom end of the sleeve. The lower surface of the support base is fixedly connected to a base through a column. The lower surface of the lifting plate is hinged to the top end of a hinge rod. A support ring is hinged to the bottom end of the hinge rod. A push rod is movably mounted at the axis of the support ring. A contact ball is fixedly mounted at the top end of the push rod.

[0008] A push rod is slidably mounted on the inner wall of the lifting plate. An arc-shaped clamping block is hinged to one end of the push rod near the top rod. A retaining spring is fixedly connected between the other end of the push rod and the inner wall of the lifting plate. A toothed groove is formed on the arc-shaped outer wall of the top rod. A connecting block is slidably mounted on the inner wall of the support ring. A contact wheel is rotatably mounted on the inner wall of the connecting block near the toothed groove. A retaining spring is fixedly connected between the other end of the connecting block and the inner wall of the support ring.

[0009] Preferably, the upper surface of the support base is provided with four sets of circular columns in a rectangular array, and the top frame is fixedly installed on the upper surface of the support base through the circular columns. The inner wall of the moving mold is provided with a circular through hole that matches the outer diameter of the circular columns, and the circular columns are located inside the circular through hole, thereby ensuring that the moving mold can only move in the vertical direction under the drive of the hydraulic cylinder.

[0010] Preferably, the arc-shaped inner top is arranged with a low center and high edges, so that after the contact ball rises and comes into contact with the arc-shaped inner top, it will slide along the inner surface of the arc-shaped inner top to the side away from the center of the arc-shaped inner top.

[0011] Preferably, the number of tooth grooves is set to two sets, and the two sets of tooth grooves are mirror images of each other on the left and right sides of the push rod. The tooth groove contains a number of teeth, and the distance between two sets of adjacent teeth is the same as the outer diameter of the contact wheel. Thus, under the elastic force of the clamping spring, the connecting block pushes the contact wheel to always be stuck in the gap between the teeth, so as to maintain the relative stability of the push rod.

[0012] Preferably, the bottom of the fixed mold is provided with a torsion component, the torsion component includes a circular hole, the circular hole is opened at the center of the bottom of the fixed mold, the inner surface of the circular hole is provided with an arc-shaped groove, and an arc-shaped strip is fixedly installed on the outer wall of the T-shaped disk.

[0013] Preferably, the size of the T-shaped disk is adapted to the circular hole, and the top of the circular hole is provided with a disc-shaped slot for receiving the T-shaped disk, thereby ensuring that the T-shaped disk can remain flush with the bottom inner wall of the die during the stamping operation of the stamped part.

[0014] Preferably, the arc-shaped chute is arranged in a spiral shape, and the number of the arc-shaped chute is four. The four arc-shaped chutes are arranged in pairs in a circular array on the arc-shaped inner surface of the circular hole. The size of the arc-shaped strip is adapted to the size of the arc-shaped chute, and the number of the arc-shaped strip corresponds one-to-one with the number of arc-shaped chute.

[0015] Compared with the prior art, the present invention provides a stamping die for processing stamped parts, which has the following beneficial effects:

[0016] 1. The stamping die for processing stamped parts is equipped with a demolding component. With the drive of the moving die, the support ring drives the ejector rod and contact ball to impact upwards. After the contact ball contacts the arc-shaped inner top, it will randomly move along the arc surface to the periphery. As the contact ball touches the top, the tooth groove will disengage from the contact wheel. Until the ejector rod moves down a certain distance, the contact wheel will re-enter the tooth groove. Then the ejector rod will continue to move upwards with the drive of the support ring and the lifting plate, repeating the above process. The contact ball continuously generates random impact force on the inner surface of the arc-shaped inner top, so as to better promote the movement and demolding of the stamped parts embedded in the fixed die, thereby improving the demolding efficiency of the device and the production efficiency.

[0017] 2. The stamping die for processing stamped parts is equipped with a torsion component. When the T-shaped plate is pushed upward by the ejector rod and the contact ball, the arc-shaped strip and arc-shaped chute guide and restrict it, so that the T-shaped plate rotates to a certain extent during the upward ejection of the stamped part. This not only better assists the stamped part in demolding, but also reduces the direct impact force on the bottom surface of the stamped part, thereby ensuring that the product quality is not affected during the demolding process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0019] Figure 2 This is a cross-sectional view of the support base of this utility model;

[0020] Figure 3 This is a schematic cross-sectional view of the fixed mold of this utility model;

[0021] Figure 4 This is a schematic cross-sectional view of the lifting plate of this utility model;

[0022] Figure 5 This is a partial three-dimensional structural diagram of the lifting component of this utility model;

[0023] Figure 6 This is a cross-sectional structural diagram of the top rod and support ring of this utility model.

[0024] In the diagram: 1. Support base; 2. Top frame; 3. Hydraulic cylinder; 4. Moving mold; 5. Fixed mold; 7. Demolding assembly; 71. T-shaped plate; 72. Arc-shaped inner top; 73. Tie rod; 74. Sleeve; 75. Lifting plate; 76. Base; 77. Hinge rod; 78. Support ring; 79. Top rod; 710. Contact ball; 711. Push rod; 712. Arc-shaped clamping block; 713. Clamping spring; 714. Tooth groove; 715. Connecting block; 716. Contact wheel; 717. Clamping spring; 8. Torsion assembly; 81. Circular hole; 82. Arc-shaped chute; 83. Arc-shaped strip. Detailed Implementation

[0025] like Figures 1-6 As shown, this utility model provides a technical solution: a stamping die for stamping parts processing, including a support base 1, a top frame 2 fixedly installed on the upper surface of the support base 1, a hydraulic cylinder 3 fixedly installed on the upper surface of the top frame 2, a moving die 4 fixedly connected to the output end of the hydraulic cylinder 3, a fixed die 5 fixedly installed on the upper surface of the support base 1, and a demolding assembly 7 provided below the support base 1. The demolding assembly 7 includes a T-shaped plate 71, an arc-shaped inner top 72, a pull rod 73, a sleeve 74, a lifting plate 75, a base 76, a hinge rod 77, a support ring 78, a top rod 79, a contact ball 710, a push rod 711, an arc-shaped clamping block 712, a clamping spring 713, a toothed groove 714, a connecting block 715, a contact wheel 716, and a clamping spring 717.

[0026] In one embodiment of this utility model, a T-shaped disk 71 is movably mounted on the bottom inner wall of a fixed mold 5. An arc-shaped inner top 72 is formed on the lower surface of the T-shaped disk 71. A pull rod 73 is fixedly connected to the lower surface of the moving mold 4. A sleeve 74 is fitted onto the outer wall of the pull rod 73. A lifting plate 75 is fixedly connected to the bottom end of the sleeve 74. A base 76 is fixedly connected to the lower surface of the support base 1 via a column. The top end of a hinge rod 77 is hinged to the lower surface of the lifting plate 75. A support ring 78 is hinged to the bottom end of the hinge rod 77. A push rod 79 is movably mounted at the axis of the support ring 78. The top end of the push rod 79... A contact ball 710 is fixedly installed. A push rod 711 is slidably installed on the inner wall of the lifting plate 75. An arc-shaped clamping block 712 is hinged to one end of the push rod 711 near the top rod 79. A pressing spring 713 is fixedly connected between the other end of the push rod 711 and the inner wall of the lifting plate 75. A toothed groove 714 is opened on the arc-shaped outer wall of the top rod 79. A connecting block 715 is slidably installed on the inner wall of the support ring 78. A contact wheel 716 is rotatably installed on the inner wall of the connecting block 715 near the toothed groove 714. A pressing spring 717 is fixedly connected between the other end of the connecting block 715 and the inner wall of the support ring 78.

[0027] Furthermore, the upper surface of the support base 1 is arranged in a rectangular array with four sets of circular columns, and the top frame 2 is fixedly installed on the upper surface of the support base 1 through these circular columns. At the same time, the inner wall of the moving mold 4 is provided with a circular through hole that matches the outer diameter of the aforementioned circular columns, and the circular columns are placed inside the circular through hole, thereby ensuring that the moving mold 4 can only move vertically under the drive of the hydraulic cylinder 3. In addition, the upper surface of the T-shaped disk 71 is flush with the bottom inner wall of the fixed mold 5, so that the surface of the internal forming cavity of the fixed mold 5 is flat, thereby better realizing the stamping and forming of the workpiece. Specifically, the arc-shaped inner top 72 is arranged with a low center and high edge, so that after the contact ball 710 rises and contacts the arc-shaped inner top 72, it will move away from the center of the arc-shaped inner top 72 along the inner surface of the arc-shaped inner top 72. The sliding mechanism is as follows: three sets of tie rods 73 and sleeves 74 are provided, with the three sets of tie rods 73 and sleeves 74 respectively located on the back and left and right sides of the fixed mold 5. This allows the tie rods 73 and sleeves 74 to work together to achieve a more stable upward driving effect on the lifting plate 75 without affecting the operator's handling of the molded workpiece and feeding of the fixed mold 5. At the same time, the inner wall of the support base 1 is provided with a through hole that matches the outer diameter of the sleeve 74, and the sleeve 74 is located inside the through hole. Specifically, a blocking ring is provided on the arc-shaped inner surface of the sleeve 74, and a baffle with a diameter larger than the inner diameter of the blocking ring is provided on the bottom end face of the tie rod 73, so that when the moving mold 4 moves upward, it will eventually drive the sleeve 74 upward, thereby driving the lifting plate 75 upward.

[0028] Meanwhile, a circular cavity is provided at the center of the lifting plate 75, and the top rods 79 and other components are all located inside this circular cavity. Furthermore, four sets of hinge rods 77 are arranged in a circumferential array evenly distributed around the circular cavity to ensure the stability of the support ring 78's movement. Further, two sets of push rods 711 are provided, mirror-image positioned on the left and right sides of the top rod 79, thus cooperating with two sets of clamping springs 713. This allows the push rods 711 to drive their end-hinged arc-shaped clamping blocks 712 to adhere to the arc-shaped outer wall of the top rod 79. And due to the arc-shaped surfaces on both sides of the arc-shaped clamping blocks 712... The design ensures that even if the push rod 79 tilts in the front-to-back direction, it will eventually return to the position between the two sets of arc-shaped clamping blocks 712. Additionally, two sets of toothed grooves 714 are provided, mirrored on the left and right sides of the push rod 79. Each toothed groove 714 contains several teeth, and the distance between two adjacent sets of teeth is the same as the outer diameter of the contact wheel 716. Thus, under the elastic force of the clamping spring 717, the connecting block 715 pushes the contact wheel 716 to remain locked in the gap between the teeth, maintaining the relative stability of the push rod 79 and preventing it from falling directly out of the support ring 78.

[0029] Specifically, the hydraulic cylinder 3 controls the moving mold 4 to move upward until the baffle on the bottom end of the pull rod 73 is aligned with the retaining ring on the inner wall of the sleeve 74. After the moving mold 4 moves upward a certain distance, the pull rod 73 will drive the sleeve 74 to move upward, which in turn drives the lifting plate 75 to move upward. In conjunction with the pulling of the hinge rod 77, the support ring 78 drives the push rod 79 and the contact ball 710 to impact upward. After the contact ball 710 contacts the arc-shaped inner top 72, it will randomly move along the arc surface to the periphery, and follow the contact ball 710 upward. The contact of the top of the 0 causes the tooth groove 714 to disengage from the contact wheel 716 until the push rod 79 moves down a certain distance and the contact wheel 716 re-enters the tooth groove 714. Then the push rod 79 will continue to move upward with the drive of the support ring 78 and the lifting plate 75, repeating the above process. During this process, the contact ball 710 continuously impacts the inner surface of the arc-shaped inner top 72, and the impact direction is random, so as to better promote the movement and demolding of the stamped part embedded in the fixed mold 5, improve the demolding and production efficiency of the device.

[0030] Please also refer to the instruction manual appendix. Figure 3 In an embodiment of this utility model, a torsion assembly 8 is provided at the bottom of the fixed mold 5. The torsion assembly 8 includes a circular hole 81, which is located at the center of the bottom of the fixed mold 5. An arc-shaped groove 82 is provided on the arc-shaped inner surface of the circular hole 81. An arc-shaped strip 83 is fixedly installed on the arc-shaped outer wall of the T-shaped disk 71.

[0031] It is worth noting that the size of the T-shaped disk 71 is adapted to the circular hole 81, and the top of the circular hole 81 has a disc-shaped slot for receiving the T-shaped disk 71, thus ensuring that the T-shaped disk 71 remains flush with the bottom inner wall of the fixed mold 5 during the stamping operation of the stamped part. At the same time, the arc-shaped chute 82 is arranged in a spiral shape, and there are four arc-shaped chute 82s. The four arc-shaped chute 82s are arranged in pairs in a circumferential array on the arc-shaped inner surface of the circular hole 81. Specifically, the arc-shaped strip 83 and the arc-shaped chute 82 The sizes are matched, and the number of arc-shaped bars 83 corresponds one-to-one with the number of arc-shaped chutes 82. Thus, when the T-shaped disk 71 is pushed upward by the ejector rod 79 and the contact ball 710, the arc-shaped bars 83 and the arc-shaped chutes 82 guide and restrict the T-shaped disk 71 to rotate to a certain extent during the upward ejection of the stamping part. This not only better assists the stamping part in demolding but also reduces the direct impact force on the bottom surface of the stamping part, thereby ensuring that the product quality is not affected during the demolding process.

[0032] In this invention, during use, the stamped part is first placed inside the fixed mold 5. Then, the hydraulic cylinder 3 is activated to drive the moving mold 4 downward to impact and form the stamped part inside the fixed mold 5. After stamping, the moving mold 4 is moved upward under the control of the hydraulic cylinder 3. After the moving mold 4 moves upward a certain distance, the pull rod 73 will drive the sleeve 74 upward to move, which in turn drives the lifting plate 75 upward. With the pull of the hinge rod 77, the support ring 78 drives the push rod 79 and the contact ball 710 to impact upward. The contact ball 710 and the arc-shaped inner... After the top 72 contacts, it will randomly move along the arc surface to the periphery. As the contact ball 710 touches the top, the tooth groove 714 will disengage from the contact wheel 716. After the push rod 79 moves down a certain distance, the contact wheel 716 will re-enter the tooth groove 714. Then the push rod 79 will continue to move upward with the drive of the support ring 78 and the lifting plate 75, repeating the above process. The contact ball 710 continuously generates random impact force on the inner surface of the arc-shaped inner top 72 to better promote the movement and demolding of the stamped part embedded in the fixed mold 5, thereby improving the demolding and production efficiency of the device.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A stamping die for processing stamped parts, comprising a support base (1), a top frame (2) fixedly mounted on the upper surface of the support base (1), a hydraulic cylinder (3) fixedly mounted on the upper surface of the top frame (2), a moving die (4) fixedly connected to the output end of the hydraulic cylinder (3), and a fixed die (5) fixedly mounted on the upper surface of the support base (1), characterized in that: A demolding assembly (7) is provided below the support base (1), and the demolding assembly (7) includes: T-shaped disk (71), the T-shaped disk (71) is movably installed on the bottom inner wall of the fixed mold (5), the lower surface of the T-shaped disk (71) is provided with an arc-shaped inner top (72), the lower surface of the moving mold (4) is fixedly connected with a pull rod (73), the outer wall of the pull rod (73) is fitted with a sleeve (74), the bottom end of the sleeve (74) is fixedly connected with a lifting plate (75), the lower surface of the support base (1) is fixedly connected with a base (76) through a column, the lower surface of the lifting plate (75) is hinged with the top end of a hinge rod (77), the bottom end of the hinge rod (77) is hinged with a support ring (78), the support ring (78) is movably installed with a top rod (79) at the axis of the support ring (78), and the top end of the top rod (79) is fixedly installed with a contact ball (710); A push rod (711) is slidably mounted on the inner wall of the lifting plate (75). An arc-shaped clamping block (712) is hinged to one end of the push rod (711) near the top rod (79). A pressing spring (713) is fixedly connected between the other end of the push rod (711) and the inner wall of the lifting plate (75). A toothed groove (714) is provided on the arc-shaped outer wall of the top rod (79). A connecting block (715) is slidably mounted on the inner wall of the support ring (78). A contact wheel (716) is rotatably mounted on the inner wall of the connecting block (715) near the toothed groove (714). A pressing spring (717) is fixedly connected between the other end of the connecting block (715) and the inner wall of the support ring (78).

2. The stamping die for processing stamped parts according to claim 1, characterized in that: The upper surface of the support base (1) is provided with four sets of circular columns in a rectangular array, and the top frame (2) is fixedly installed on the upper surface of the support base (1) through the circular columns. The inner wall of the moving mold (4) is provided with a circular through hole that matches the outer diameter of the circular column, and the circular column is located inside the circular through hole.

3. The stamping die for processing stamped parts according to claim 1, characterized in that: The arc-shaped inner top (72) is arranged with a low center and a high edge.

4. A stamping die for processing stamped parts according to claim 1, characterized in that: The number of the tooth grooves (714) is set in two sets, and the two sets of tooth grooves (714) are mirror images of each other on the left and right sides of the top rod (79). The tooth grooves (714) contain a number of teeth, and the distance between the two sets of adjacent teeth is the same as the outer diameter of the contact wheel (716).

5. A stamping die for processing stamped parts according to claim 1, characterized in that: The bottom of the fixed mold (5) is provided with a torsion assembly (8), which includes a circular hole (81) at the center of the bottom of the fixed mold (5). An arc-shaped groove (82) is provided on the arc-shaped inner surface of the circular hole (81), and an arc-shaped strip (83) is fixedly installed on the arc-shaped outer wall of the T-shaped disk (71).

6. A stamping die for processing stamped parts according to claim 5, characterized in that: The size of the T-shaped disk (71) is adapted to the circular hole (81), and the top of the circular hole (81) is provided with a disc-shaped slot for receiving the T-shaped disk (71).

7. A stamping die for processing stamped parts according to claim 5, characterized in that: The arc-shaped chute (82) is arranged in a spiral shape, and there are four arc-shaped chute (82). The four arc-shaped chute (82) are arranged in pairs in a circular array on the arc-shaped inner surface of the circular hole (81). The size of the arc-shaped strip (83) is adapted to the size of the arc-shaped chute (82), and the number of the arc-shaped strip (83) corresponds one-to-one with the number of arc-shaped chute (82).

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