Continuous stamping equipment

Abstract

The utility model provides continuous stamping equipment, which relates to the field of automobile stamping parts and comprises a base (10), a door-shaped support (20), a hydraulic mechanism (30), a lifting plate (40), an upper die (50), a positioning mechanism and a lower die (70), the door-shaped support (20) is arranged on the end face of the base (10), the hydraulic mechanism (30) is arranged in the middle of the top end of the door-shaped support (20), and the lifting plate (40) is arranged at the output end of the hydraulic mechanism (30); an upper die (50) is arranged on the bottom surface of the lifting plate (40); the positioning mechanism comprises an extrusion ring (61), a sliding rod (62), a positioning block (63) and a first spring (64); the lower mold (70) is located on the upper side of the end face of the base (10), the two ends of the lower mold (70) are rotationally connected with the door-shaped support (20) through rotating rods (80) correspondingly, and a demolding mechanism is arranged in an inner cavity of the lower mold (70). According to the stamping equipment, after stamping is finished, formed parts can be removed from the surfaces of the upper die (50) and the lower die (70), and discharging and collecting of the formed parts are automatically completed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile stamping parts, in particular to a continuous stamping device. Background Art

[0002] Stamping is a method for manufacturing metal parts, which is mainly used in products in the fields of automobiles, instruments, household appliances, bicycles, office machinery, daily utensils, etc. During the stamping process, the metal sheet is usually placed between the upper mold and the lower mold, and then pressure is applied to the upper mold or the lower mold by a press to extrude the metal sheet into a specific shape. Chinese patent document CN220049812U discloses a stamping device for automobile decorative parts, which realizes the demoulding of the mold through the mutual cooperation of the second hydraulic cylinder, the slider, the gear, the rotating rod, the gear, the connecting rod, the connecting rod, the top plate, and the first mold, thereby improving the quality of the parts and reducing the production time and workload; at the same time, through the mutual cooperation of the square block, the spring, the button, the second mold, and the protrusion, the installation and disassembly of the mold is realized, thereby reducing the need for additional time and labor, and reducing the cost during production. However, after the stamping equipment ejects the molded parts out of the first mold through the top plate, manual unloading is still required (i.e., the molded parts are taken out manually after being ejected), which disrupts the mechanical rhythm in the batch stamping process and reduces the stamping efficiency. In addition, manual unloading is prone to cause unnecessary damage. At the same time, when the molded parts adhere to the surface of the second mold, the stamping equipment cannot effectively remove them. After the molded parts rise to a certain height with the second mold, they detach from the surface of the second mold due to their own gravity, which may cause personal injury or damage to the molding mold due to the falling of the molded parts. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the purpose of the utility model is to provide a continuous stamping equipment, which can realize the removal of the formed parts on the surface of the upper mold and the lower mold after the stamping is completed, and automatically complete the unloading and collection of the formed parts, thereby reducing manual participation and avoiding rhythm disruption, efficiency reduction and unnecessary safety hazards caused by manual participation.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A continuous stamping equipment comprises a base, a gate-shaped bracket, a hydraulic mechanism, a lifting plate, an upper die, a positioning mechanism and a lower die, the gate-shaped bracket is arranged on the end face of the base and a hydraulic mechanism is fixedly arranged in the middle of the top end of the gate-shaped bracket, and a lifting plate is arranged at the output end of the hydraulic mechanism; the upper die is fixedly arranged in the middle of the bottom face of the lifting plate, the positioning mechanism comprises an extrusion ring, a sliding rod, a positioning block and a first spring, the extrusion ring is arranged on the lower side of the upper die and located at the outer ring of the upper die, the extrusion ring and the upper die share a central axis, a plurality of sliding rods are evenly arranged on the end face of the extrusion ring and around the axis thereof, the top end of the sliding rod (i.e., the end away from the extrusion ring) passes through the lifting plate and a positioning block is fixedly arranged, and a first spring is arranged between the extrusion ring and the lifting plate and located at the outer ring of the sliding rod; the lower die is located on the upper side of the end face of the base and the two ends of the lower die are rotatably connected to the two legs of the gate-shaped bracket through a rotating rod, and a demoulding mechanism is arranged in the inner cavity of the lower die; a collecting trough is arranged in the middle of the base and corresponding to the lower die.

[0006] Based on the further optimization of the above scheme, the end faces of the base are located on the front and rear sides of the gate-shaped bracket and guide rods are respectively arranged on the outer circle of the collecting groove, guide sleeves are arranged on the corresponding sides of the lifting plate and the guide sleeves are slidably connected to the outer walls of the corresponding guide rods; a limit block is arranged at the top end of the guide rod (i.e., the end away from the base).

[0007] Based on further optimization of the above scheme, the demolding mechanism includes a gravity slider, a push rod, a push plate and a second spring. The top surface and the bottom surface of the lower mold are respectively provided with grooves corresponding to the upper mold, and the middle of the bottom surfaces of the two grooves are respectively provided with card slots. The lower mold is located between the two grooves and a sliding cavity is provided inside, and a gravity slider is slidably arranged in the sliding cavity; coaxial push rods are respectively arranged on the top surface and the bottom surface of the gravity slider, and one end of the push rod away from the gravity slider passes through the sliding cavity and the lower mold body between the corresponding card slot and is slidably connected, and one end of the push rod away from the gravity slider is provided with a top plate corresponding to the card slot; a second spring is provided between the top surface and the bottom surface of the gravity slider and the corresponding inner wall of the sliding cavity and located on the outer circle of the push rod.

[0008] Based on the further optimization of the above scheme, the cross-section of the gravity slider is composed of two identical isosceles trapezoids symmetrically spliced ​​together, and the splicing point is the long base of the isosceles trapezoid; the inclined surface of the gravity slider and L-shaped connecting rods are evenly arranged around the axis thereof, the L-shaped connecting rods are slidingly connected to the inclined surface of the gravity slider, the end of the L-shaped connecting rod away from the gravity slider is located on the end surface of the lower mold (i.e., the top surface or the bottom surface) and a clamping mechanism is fixedly arranged, the clamping mechanism is slidingly connected to the end surface of the lower mold (i.e., the top surface or the bottom surface), and a sliding groove is opened in the lower mold corresponding to the L-shaped connecting rod.

[0009] Based on further optimization of the above scheme, the clamping mechanism includes a sliding block, a clamping plate and a third spring. The sliding block is slidably arranged on the end surface of the lower mold (i.e., the top surface or the bottom surface) and the bottom surface of the sliding block is fixedly connected to the end of the corresponding L-shaped connecting rod away from the gravity slider. The clamping plate is arranged on the side surface of the sliding block close to the groove through multiple third springs.

[0010] Based on further optimization of the above solution, a rubber layer is provided on a side of the clamping plate away from the third spring.

[0011] Based on further optimization of the above scheme, one end of the rotating rod is fixedly connected to the corresponding side surface of the lower mold, and the other end (i.e., the end away from the lower mold) passes through the corresponding support foot of the door-shaped bracket and is fixedly provided with a positioning plate. The rotating rod is rotatably connected to the corresponding support foot of the door-shaped bracket and the rotating rod is collinear with the central axis of the longitudinal section of the lower mold.

[0012] The following are the technical effects of the utility model:

[0013] The present application drives the extrusion ring and the upper mold to move downward at the same time by the movement of the lifting plate, so that the bottom surface of the extrusion ring first contacts the metal sheet placed on the end face of the lower mold, thereby realizing the compression and positioning of the metal sheet and avoiding the displacement of the metal sheet during the stamping process; then the stamping forming of the metal sheet is realized by the film between the upper mold and the groove; at the same time, through the cooperation of the extrusion ring, the sliding rod, the positioning block and the first spring, in the process of the lifting plate driving the upper mold to move upward, the extrusion ring always presses the molded product against the end face of the lower mold through the elastic force of the first spring, avoiding the molded product from adhering to the surface of the upper mold. In addition, the present application realizes the rotation of the lower mold by setting a rotating rod, and realizes the demoulding of the molded product on the lower mold and the unloading and collection of the molded product after demoulding by using the cooperation of the rotating lower mold with the demoulding mechanism and the collecting groove, without manual unloading, effectively avoiding the disruption of the production rhythm and the damage caused by manual unloading, thereby realizing continuous stamping and improving stamping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the stamping equipment in the embodiment of the utility model.

[0015] Figure 2 for Figure 1 AA section view.

[0016] Figure 3 for Figure 1 A partial enlarged view of B.

[0017] Among them, 10, base; 11, collecting trough; 12, guide rod; 120, limit block; 20, door-shaped bracket; 30, hydraulic mechanism; 40, lifting plate; 41, guide sleeve; 50, upper mold; 61, extrusion ring; 62, sliding rod; 63, positioning block; 64, first spring; 70, lower mold; 701, groove; 702, sliding cavity; 703, slide groove; 71, gravity slider; 72, push rod; 73, top plate; 74, second spring; 75, L-shaped connecting rod; 80, rotating rod; 81, positioning plate; 91, sliding block; 92, clamping plate; 93, third spring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Embodiment 1:

[0020] Referring to the figure below: a continuous stamping device includes a base 10, a gate-shaped bracket 20, a hydraulic mechanism 30, a lifting plate 40, an upper mold 50, a positioning mechanism and a lower mold 70, the gate-shaped bracket 20 is arranged on the end surface of the base 10 and the hydraulic mechanism 30 is fixedly arranged in the middle of the top of the gate-shaped bracket 20 (refer to Figure 1 As shown, the gate-shaped bracket 20 is fixedly arranged on the outer ring of the top surface of the base 10 and the hydraulic mechanism 30 is fixedly arranged in the middle of the cross beam of the gate-shaped bracket 20, and the output end of the telescopic rod of the hydraulic mechanism 30 passes through the cross beam of the gate-shaped bracket 20). A lifting plate 40 is arranged at the output end of the hydraulic mechanism 30 (i.e., the bottom end of the telescopic rod);.

[0021] An upper mold 50 (such as Figure 1 or Figure 2 As shown, the upper mold 50 includes a connecting portion and a protruding portion, the connecting portion is fixedly arranged on the bottom surface of the lifting plate 40 and the protruding portion is fixedly arranged at one end of the connecting portion away from the lifting plate 40), the positioning mechanism includes an extrusion ring 61, a sliding rod 62, a positioning block 63 and a first spring 64, and the extrusion ring 61 is arranged on the lower side of the upper mold 50 (as shown in FIG. Figure 1 or Figure 2 As shown, under the initial condition, the end face of the extrusion ring 61 is located at the lower side of the bottom face of the protrusion) and is located at the outer ring of the upper mold 50 (the extrusion ring can be selected from any one of a circular ring, a rectangular ring, a square ring or an irregular polygonal ring according to actual conditions, combined with Figure 1 and Figure 2 As shown, a rectangular ring is used in this embodiment), the extrusion ring 61 and the upper mold 50 share a central axis, and a plurality of sliding rods 62 are evenly arranged on the end surface of the extrusion ring 61 and around its axis (the number of sliding rods 62 is set according to actual conditions, generally 3 to 6), the top end of the sliding rod 62 (that is, the end away from the extrusion ring 61) passes through the lifting plate 40, and a positioning block 63 is fixedly arranged, and a first spring 64 is arranged between the extrusion ring 61 and the lifting plate 40 (top surface) and located on the outer ring of the sliding rod 62 (that is, the top end of the first spring 64 is fixedly connected to the bottom surface of the lifting plate 40, and the bottom end of the first spring 64 is fixedly connected to the top surface of the extrusion ring 61, and the inner diameter of the first spring 64 is larger than the outer diameter of the sliding rod 62); the lower mold 70 is located on the upper side of the end surface of the base 70 and the two ends of the lower mold 70 are rotatably connected to the two legs of the door-shaped bracket 20 through the rotating rod 80, as shown Figure 1As shown, one end of the rotating rod 80 is fixedly connected to the corresponding side surface (i.e., the left and right side surfaces) of the lower mold 70, and the other end (i.e., the end away from the lower mold 70) passes through the corresponding support foot of the door-shaped bracket 20 and is fixedly provided with a positioning plate 81 (the central axes of the two rotating rods 80 are collinear, as shown in FIG. Figure 1 As shown in FIG. 1 , the rotating rod 80 is rotatably connected to the corresponding legs of the gate-shaped bracket 20 and the rotating rod 80 is colinear with the central axis of the longitudinal section of the lower mold 70. The rotating rod 80 can be controlled to rotate by a driving motor fixedly arranged on the side wall of the gate-shaped bracket 20.

[0022] The inner cavity of the lower mold 70 is provided with a demoulding mechanism; the demoulding mechanism includes a gravity slider 71, a push rod 72, a top plate 73 and a second spring 74. The top surface and the bottom surface of the lower mold 70 are respectively provided with grooves 701 corresponding to the upper mold 50 (i.e., the protruding portion) (the two grooves 701 are symmetrical about the longitudinal cross-section center axis of the lower mold 70, see Figure 1 or Figure 2 As shown in the figure, a card slot is respectively provided in the middle of the bottom surface of the two grooves 701 (that is, the middle of the side surface of the groove 701 close to the sliding cavity 702), and the lower mold 70 is provided with a sliding cavity 702 inside the two grooves 701, and a gravity slider 71 is slidably arranged in the sliding cavity 702; a coaxial ejector rod 72 is respectively provided on the top surface and the bottom surface of the gravity slider 71, and one end of the ejector rod 72 away from the gravity slider 71 passes through the lower mold 70 body between the sliding cavity 702 and the corresponding card slot and is slidably connected, and one end of the ejector rod 72 away from the gravity slider 71 and a top plate 73 is provided in the corresponding card slot (the top plate 73 can be clamped in the card slot); a second spring 74 is provided between the top surface and the bottom surface of the gravity slider 71 and the corresponding inner wall of the sliding cavity 702 and located at the outer ring of the ejector rod 73 (as shown in the figure, Figure 1 or Figure 2 As shown, the inner diameter of the second spring 74 is larger than the outer diameter of the push rod 73). In order to ensure that the metal sheet is firmly positioned before stamping and to ensure the accuracy of the stamping position, the cross section of the gravity slider 71 is formed by symmetrically splicing two identical isosceles trapezoids, and the splicing point is the long bottom side of the isosceles trapezoid (refer to Figure 1 or Figure 2 As shown, the side surface of the joint of the gravity slider 71 is slidably connected to the inner wall of the sliding cavity 702); the inclined surface of the gravity slider 71 and L-shaped connecting rods 75 are evenly arranged around the central axis (the number of L-shaped connecting rods 75 is set according to actual conditions. In this embodiment, four L-shaped connecting rods 75 are set, and they are respectively located on the four sides of the groove 701), the L-shaped connecting rod 75 is slidably connected to the inclined surface of the gravity slider 71, and the end of the L-shaped connecting rod 75 away from the gravity slider 71 is located on the end surface (i.e., the top surface or the bottom surface) of the lower mold 70 and a clamping mechanism is fixedly arranged. The clamping mechanism is slidably connected to the end surface (i.e., the top surface or the bottom surface) of the lower mold 70, and a sliding groove 703 is provided in the lower mold 70 corresponding to the L-shaped connecting rod 75 (as shown in FIG. Figure 1 or Figure 2The clamping mechanism includes a sliding block 91, a clamping plate 92 and a third spring 93. The sliding block 91 is slidably disposed on the end surface (i.e., the top surface or the bottom surface) of the lower mold 70, and the bottom surface of the sliding block 91 is fixedly connected to the end of the corresponding L-shaped connecting rod 75 away from the gravity slider 71 (see Figure 3 As shown, the sliding block 91 is provided with a clamping plate 92 (as shown in FIG. Figure 3 As shown, a plurality of spring grooves are evenly arranged on the side of the sliding plate 91 close to the groove 701, a third spring 93 is fixedly arranged in the spring groove, and one end of the third spring 93 away from the spring groove is connected to the clamping plate 92, and the number of the third springs 93 is generally not less than three). A rubber layer is arranged on the side of the clamping plate 92 away from the third spring 93 (the rubber layer can be made of conventional rubber material in the prior art, and is not limited in this embodiment).

[0023] The collecting groove 11 is provided in the middle of the base 10 and corresponds to the lower mold 70 (combined with Figure 1 and Figure 2 As shown, the collecting tank 11 is as Figure 1 The length shown is not less than the length of the lower mold 70, and the collecting groove 11 is as shown in FIG. Figure 2 The width shown is greater than the width of the lower mold 70, which facilitates the rotation of the lower mold 70); the end faces of the base 10 are located at the front and rear sides of the door-shaped bracket 20 (i.e. Figure 1 The front, rear or Figure 2 The left and right sides shown in the figure are respectively provided with guide rods 12 on the outer ring of the collecting tank 11, and the corresponding side of the lifting plate 40 is provided with guide sleeves 41, and the guide sleeves 41 are slidably sleeved on the outer wall of the corresponding guide rod 12 (as shown in the figure). Figure 2 As shown); a limit block 120 is provided at the top end of the guide rod 12 (ie, the end away from the base 10).

[0024] Working principle:

[0025] The initial state of the entire stamping equipment is as follows Figure 1As shown, when in use, the metal sheet to be stamped is placed on the upper end surface of the lower die 70 by a robot or manually, and clamped between the clamping mechanisms (at this time, the third spring 93 is compressed); then, the hydraulic mechanism 30 is driven to drive the lifting plate 40 to move downward, and the lifting plate 40 moves downward to drive the extrusion ring 61 and the upper die 50 to move downward at the same time. The bottom end of the extrusion ring 61 first contacts the end surface of the metal sheet to achieve extrusion positioning (to avoid the problem of warping of the metal sheet during the extrusion molding process), and then the upper die 50 continues to move downward and contacts the metal sheet to complete the extrusion molding (in this process, the extrusion ring 61 pushes the sliding rod 62 to slide relative to the lifting plate 40, and the first spring 64 is compressed). After extrusion molding, the hydraulic mechanism 30 is started to drive the lifting plate 40 to move upward, and the lifting plate 40 drives the upper mold 50 to move upward. During this process, due to the elastic reset of the first spring 64 and the gravity of the extrusion ring 61 itself, the extrusion ring 61 supports the metal sheet, thereby facilitating the demoulding between the metal sheet and the upper mold 60; as the lifting plate 40 continues to move upward, the lifting plate 40, the upper mold 50 and the positioning mechanism are reset, and then the rotating rod 80 is started to rotate, so that it drives the lower mold 70 to rotate, thereby realizing the flipping of the lower mold 70. During this process, the gravity slider 71 changes its center of gravity during the flipping process, the upper ejector rod 72 and the ejector plate 73 eject the molded parts in the groove 701, and the corresponding L-shaped connecting rod 75 slides to the end away from the gravity slider 71, and the lower ejector plate 73 is stuck in the corresponding groove 701 to form a molding cavity and the corresponding L-shaped connecting rod 75 slides to the end close to the gravity slider 71; then re-loading is performed, thereby realizing a continuous and uninterrupted stamping process.

[0026] Embodiment 2:

[0027] As a further optimization of the solution of the utility model, on the basis of the solution of Example 1, in order to avoid collision damage between the molded parts after demolding and the inner wall of the collecting tank 11, a rubber buffer layer is evenly laid on the inner wall of the collecting tank 11 and a collecting port is opened on one side of the collecting tank 11 (i.e., the front end or the rear end as shown in 1) for real-time removal of the molded parts after unloading.

Claims

1. A continuous stamping equipment, characterized in that: It includes a base, a gate-shaped bracket, a hydraulic mechanism, a lifting plate, an upper mold, a positioning mechanism and a lower mold. The gate-shaped bracket is arranged on the end face of the base and a hydraulic mechanism is fixedly arranged in the middle of the top of the gate-shaped bracket, and a lifting plate is arranged at the output end of the hydraulic mechanism; the upper mold is fixedly arranged in the middle of the bottom surface of the lifting plate, and the positioning mechanism includes an extrusion ring, a sliding rod, a positioning block and a first spring. The extrusion ring is arranged on the lower side of the upper mold and is located at the outer ring of the upper mold. The extrusion ring and the upper mold share a central axis. A plurality of sliding rods are evenly arranged on the end face of the extrusion ring and around its axis. After the top end of the sliding rod passes through the lifting plate, a positioning block is fixedly arranged. The first spring is arranged between the extrusion ring and the lifting plate and is located at the outer ring of the sliding rod; the lower mold is located on the upper side of the end face of the base and the two ends of the lower mold are rotatably connected to the two legs of the gate-shaped bracket through a rotating rod, and a demoulding mechanism is arranged in the inner cavity of the lower mold; a collecting groove is arranged in the middle of the base and corresponding to the lower mold.

2. A continuous stamping equipment according to claim 1, characterized in that: The end faces of the base are located at the front and rear sides of the door-shaped bracket and guide rods are respectively arranged at the outer ring of the collecting groove, guide sleeves are arranged on the corresponding sides of the lifting plate and the guide sleeves are slidably connected to the outer walls of the corresponding guide rods; a limit block is arranged at the top of the guide rod.

3. A continuous stamping equipment according to claim 1 or 2, characterized in that: The demoulding mechanism includes a gravity slider, a push rod, a push plate and a second spring. The top surface and the bottom surface of the lower mold are respectively provided with grooves corresponding to the upper mold, and the middle of the bottom surfaces of the two grooves are respectively provided with card slots. The lower mold is located between the two grooves and a sliding cavity is provided inside, and a gravity slider is slidably arranged in the sliding cavity; coaxial push rods are respectively arranged on the top surface and the bottom surface of the gravity slider, and one end of the push rod away from the gravity slider passes through the lower mold body between the sliding cavity and the corresponding card slot and is slidably connected, and one end of the push rod away from the gravity slider is provided with a push plate corresponding to the card slot; a second spring is provided between the top surface and the bottom surface of the gravity slider and the corresponding inner wall of the sliding cavity and located on the outer circle of the push rod.

4. A continuous stamping equipment according to claim 3, characterized in that: The cross-section of the gravity slider is formed by two identical isosceles trapezoids symmetrically spliced ​​together, and the splicing point is the long bottom side of the isosceles trapezoid; L-shaped connecting rods are evenly arranged on the inclined surface of the gravity slider and around its central axis, and the L-shaped connecting rods are slidingly connected to the inclined surface of the gravity slider, and the end of the L-shaped connecting rod away from the gravity slider is located on the end surface of the lower mold and a clamping mechanism is fixedly arranged, and the clamping mechanism is slidingly connected to the end surface of the lower mold, and a sliding groove is provided in the lower mold corresponding to the L-shaped connecting rod.

5. A continuous stamping equipment according to claim 4, characterized in that: The clamping mechanism includes a sliding block, a clamping plate and a third spring. The sliding block is slidably arranged on the end surface of the lower mold and the bottom surface of the sliding block is fixedly connected to the end of the corresponding L-shaped connecting rod away from the gravity slider. The clamping plate is arranged on the side surface of the sliding block close to the groove through multiple third springs.

6. A continuous stamping equipment according to claim 5, characterized in that: A rubber layer is arranged on a side surface of the clamping plate away from the third spring.

7. A continuous stamping equipment according to claim 1, characterized in that: One end of the rotating rod is fixedly connected to the corresponding side surface of the lower mold, and the other end passes through the corresponding support foot of the door-shaped bracket and is fixedly provided with a positioning plate. The rotating rod is rotatably connected to the corresponding support foot of the door-shaped bracket and the rotating rod is colinear with the central axis of the longitudinal section of the lower mold.

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