Movable positioning structure of stamping die

Abstract

The utility model relates to the technical field of stamping, in particular to a stamping die movable positioning structure which comprises a workbench, a supporting frame is connected to the back face of the workbench, a hydraulic cylinder is connected to the lower portion of the top of the supporting frame, and a stamping block is connected to the bottom of the hydraulic cylinder. In the pressing process of the stamping block, a connecting rod pair is driven to press a piston rod, air in an air cylinder is squeezed into a cylinder through the piston rod, so that a push column in the cylinder is pushed out, a push plate is driven to abut against the two sides of a to-be-machined plate, the to-be-machined plate is correspondingly fixed and aligned, and the plate is corrected and fixed before being stamped; therefore, the stamping quality of the subsequent stamping block is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping, in particular to a movable positioning structure for a stamping die. Background Art

[0002] A stamping die is a special process equipment used to process materials into parts during cold stamping. It is called a cold stamping die. Stamping is a pressure processing method that uses a die installed on a press to apply pressure to the material to cause it to separate or plastically deform, thereby obtaining the desired parts.

[0003] Prior art, such as publication number CN215279527U, provides a novel positioning structure for a material guide plate used in a stamping die, comprising a template and a material guide plate. The template is provided with a positioning groove and a mounting groove. A positioning block is provided at the bottom end of the material guide plate. A cavity is formed within the material guide plate. Boxes are provided on both sides of the inner wall of the cavity. Rods are provided on opposite sides of the box. A slot is formed on the inner wall of the positioning groove. A first spring is provided between the boxes. The utility model facilitates fixing the material guide plate to the template and facilitates removal and installation of the material guide plate by providing the first spring, box, rod, and slot. The utility model facilitates positioning and installation of the material guide plate by providing the positioning block, positioning groove, and mounting groove.

[0004] This solution facilitates the positioning and installation of the guide plate by providing positioning blocks, positioning slots, and mounting slots. However, when guiding materials of varying sizes and shapes, it is still necessary to replace different guide plates, which is still quite cumbersome. Therefore, we propose a movable positioning structure for a stamping die. Utility Model Content

[0005] The purpose of the utility model is to provide a stamping die movable positioning structure, which solves the problem that when guiding materials of different sizes and shapes, it is still necessary to replace different guide plates for guidance.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A stamping die movable positioning structure comprises a workbench, the back of the workbench is connected to a support frame, a hydraulic cylinder is connected to the top and bottom of the support frame, a stamping block is connected to the bottom of the hydraulic cylinder, a positioning mechanism is provided below the stamping block, and a feeding mechanism is provided inside the workbench;

[0008] The positioning mechanism includes connecting rods, and the two connecting rods are respectively connected to the two sides of the top of the stamping block. There are air cylinders under the corresponding two connecting rods of the workbench. The inner walls of the two groups of air cylinders are slidably connected with piston rods. The corresponding sides of the two groups of air cylinders are respectively connected to cylinders, and the inner walls of the cylinders are respectively connected to push columns, and the corresponding ends of the two push columns are respectively connected to push plates.

[0009] Preferably, the connecting rod is slidably connected to a pressure rod at a position corresponding to the piston rod, and a spring is movably sleeved on the outer wall of the pressure rod.

[0010] Preferably, a spring is connected between the inner wall of the cylinder and the piston rod to reset the piston rod.

[0011] Preferably, both sides of the push plate are slidably connected to limit columns, one end of the limit column away from the push plate is connected to a positioning plate, and the outer wall of the limit column is located between the push plate and the positioning plate and is movably sleeved with a spring.

[0012] Preferably, a mounting plate is connected to the top of the workbench below the punching block, and a punching groove is provided at the top of the mounting plate corresponding to the position of the punching block.

[0013] Preferably, the feeding mechanism includes a through slot, and two of the through slots are respectively opened on both sides of the top of the workbench. A lifting plate is provided inside the workbench below the through slot, and a plurality of lifting blocks are connected to the top of the lifting plate inside the through slot.

[0014] Preferably, synchronous wheels are respectively rotated on both sides of the inner wall of the workbench, and the two synchronous wheels are connected by a synchronous belt transmission. The surfaces of the synchronous wheels are respectively connected with rocker arms, and the ends of the rocker arms away from the synchronous wheels are respectively hinged with hinged rods. The hinged rods are respectively connected to both sides of the lifting plate, and the inner wall of the workbench is connected to a servo motor that drives the synchronous wheels through a mounting frame.

[0015] By means of the above technical solution, the present invention provides a stamping die movable positioning structure, which has at least the following beneficial effects:

[0016] 1. The utility model sets a positioning mechanism. When the hydraulic cylinder drives the punching block to punch, it will drive the connecting rod to press the piston rod downward during the pressing process of the punching block. The air in the air cylinder is squeezed into the cylinder through the piston rod, thereby pushing out the push pin in the cylinder and driving the push plate to press against the two sides of the plate to be processed, fixing it accordingly and aligning it, so that the plate is corrected and fixed before punching, so as to ensure the quality of the subsequent punching of the punching block.

[0017] 2. The utility model has a compression rod and a sleeve spring at the position where the connecting rod contacts the piston rod, and a limit column is provided on the push plate to connect the positioning plate and a sleeve spring is provided, so that when the connecting rod presses down the piston rod, there is a certain expansion and contraction space, so that when the push plate is positioned, it can be positioned and fixed within a certain range corresponding to different widths of the processed plate, thereby improving its scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0019] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0020] Figure 2 This is a structural diagram showing the feeding mechanism in the present utility model;

[0021] Figure 3 For this utility model Figure 2 Display diagram of the hydraulic cylinder;

[0022] Figure 4 It is a cross-sectional view of the gas cylinder in the utility model.

[0023] In the figure: 1. workbench; 21. support frame; 22. hydraulic cylinder; 23. stamping block; 24. mounting plate; 25. stamping groove; 3. positioning mechanism; 31. connecting rod; 32. pressure rod; 33. air cylinder; 331. piston rod; 332. cylinder; 333. push column; 34. push plate; 35. positioning plate; 36. limiting column; 4. feeding mechanism; 41. through groove; 42. lifting plate; 43. lifting block; 44. synchronous wheel; 45. rocker arm; 46. hinged rod; 47. servo motor; 48. mounting frame; 49. synchronous belt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] A stamping die movable positioning structure, such as Figure 1 - Figure 4As shown, it includes a workbench 1, the back of the workbench 1 is connected to a support frame 21, a hydraulic cylinder 22 is connected to the top and bottom of the support frame 21, the bottom of the hydraulic cylinder 22 is connected to a stamping block 23, a positioning mechanism 3 is provided below the stamping block 23, and a feeding mechanism 4 is provided inside the workbench 1. The positioning mechanism 3 includes a connecting rod 31, and the two connecting rods 31 are respectively connected to the two sides of the top of the stamping block 23. There are air cylinders 33 below the corresponding two connecting rods 31 of the workbench 1, and the inner walls of the two groups of air cylinders 33 are slidably connected with piston rods 331. The corresponding sides of the two groups of air cylinders 33 are respectively connected to cylinders 332, and the inner walls of the cylinders 332 are connected to push pins 333. The corresponding ends of the two push pins 333 are respectively connected to push plates 34, and the top of the workbench 1 is connected to a mounting plate 24 below the stamping block 23, and a stamping groove 25 is provided at the top of the mounting plate 24 corresponding to the stamping block 23.

[0027] In this embodiment, by setting a positioning mechanism 3, when the hydraulic cylinder 22 drives the punching block 23 to punch, in the process of pressing the punching block 23, it will drive the connecting rod 31 to press the piston rod 331 downward, and the air in the air cylinder 33 is squeezed into the cylinder 332 through the piston rod 331, thereby pushing out the push column 333 in the cylinder 332, and driving the push plate 34 to press against the two sides of the plate to be processed, fix it accordingly, and align it, so that the plate is corrected and fixed before punching, so as to ensure the quality of the subsequent punching of the punching block 23.

[0028] Example 2

[0029] like Figure 3 As shown, the connecting rod 31 is slidably connected to the pressure rod 32 at the position corresponding to the piston rod 331, and the outer wall of the pressure rod 32 is movably sleeved with a spring, and the position between the inner wall of the air cylinder 33 and the piston rod 331 is connected with a spring for resetting the piston rod 331, and the two sides of the push plate 34 are slidably connected to the limiting columns 36 respectively, and the end of the limiting column 36 away from the push plate 34 is connected to the positioning plate 35, and the outer wall of the limiting column 36 is movably sleeved at the position between the push plate 34 and the positioning plate 35 and is provided with a spring.

[0030] In this embodiment, the pressing rod 32 is installed with a spring at the position where the connecting rod 31 contacts the piston rod 331, and a limiting column 36 is provided on the push plate 34 to connect the positioning plate 35 and install a spring, so that when the connecting rod 31 presses down the piston rod 331, there is a certain expansion and contraction space, so that when the push plate 34 is positioned, it can be positioned and fixed within a certain range corresponding to the different widths of the processed plate, thereby improving its scope of application.

[0031] Example 3

[0032] like Figure 2As shown, the feeding mechanism 4 includes a through slot 41, and two through slots 41 are respectively opened at positions on both sides of the top of the workbench 1, and a lifting plate 42 is provided inside the workbench 1 below the through slot 41. A plurality of lifting blocks 43 are connected to the top of the lifting plate 42 inside the through slot 41. Synchronous wheels 44 are respectively rotated on both sides of the inner wall of the workbench 1, and the two synchronous wheels 44 are connected to each other through a synchronous belt 49. The surfaces of the synchronous wheels 44 are respectively connected with rocker arms 45, and the ends of the rocker arms 45 away from the synchronous wheels 44 are respectively hinged with hinged rods 46, and the hinged rods 46 are respectively connected to both sides of the lifting plates 42, and the inner wall of the workbench 1 is connected to a servo motor 47 for driving the synchronous wheels 44 through a mounting bracket 48.

[0033] In this embodiment, a feeding mechanism 4 is set up, the servo motor 47 is started to drive one of the synchronous wheels 44 to rotate, and the other synchronous wheel 44 is driven by the synchronous belt 49 to rotate synchronously, so that the two sets of rocker arms 45 rotate synchronously, and the rocker arms 45 drive the lifting plate 42 on the hinged rod 46 to rotate together, so that the lifting plate 42 presents a motion trajectory that fluctuates back and forth, thereby intermittently pushing the plate feed through the lifting block 43, and the pushing spacing is consistent each time, and automatic feeding through the feeding mechanism 4 greatly improves the processing efficiency.

[0034] When a stamping die movable positioning structure of the present invention is in use, the servo motor 47 is started to drive one of the synchronous wheels 44 to rotate, and the other synchronous wheel 44 is driven by the synchronous belt 49 to rotate synchronously, so that the two sets of rocker arms 45 rotate synchronously, so that the rocker arms 45 drive the lifting plate 42 on the hinged rod 46 to rotate together, so that the lifting plate 42 presents a motion trajectory that fluctuates back and forth, thereby intermittently pushing the plate to be fed through the top block 43. After each rotation of the rocker arm 45 and the feeding is completed, the hydraulic cylinder 22 will drive the stamping block 23 to stamp. In the process of the stamping block 23 pressing down, it will drive the connecting rod 31 to press the piston rod 331 downward, and the air in the air cylinder 33 is squeezed into the cylinder 332 through the piston rod 331, thereby pushing the push column 333 in the cylinder 332 out, and driving the push plate 34 to press against the two sides of the plate to be processed, fixing it accordingly, and aligning it, so that the plate is corrected and fixed before stamping to ensure the quality of the subsequent stamping of the stamping block 23.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stamping die movable positioning structure, comprising a workbench (1), characterized in that: The back of the workbench (1) is connected to a support frame (21), the top of the support frame (21) is connected to a hydraulic cylinder (22), the bottom of the hydraulic cylinder (22) is connected to a punching block (23), a positioning mechanism (3) is provided below the punching block (23), and a feeding mechanism (4) is provided inside the workbench (1); The positioning mechanism (3) includes a connecting rod (31), two connecting rods (31) are respectively connected to the two sides of the top of the punching block (23), and there are air cylinders (33) below the corresponding two connecting rods (31) of the workbench (1). The inner walls of the two groups of air cylinders (33) are slidably connected to piston rods (331), and the corresponding sides of the two groups of air cylinders (33) are respectively connected to cylinders (332), and the inner walls of the cylinders (332) are respectively connected to push columns (333), and the corresponding ends of the two push columns (333) are respectively connected to push plates (34).

2. The active positioning structure for a stamping die according to claim 1, characterized in that: The connecting rod (31) is slidably connected to a pressure rod (32) at a position corresponding to the piston rod (331), and a spring is movably sleeved on the outer wall of the pressure rod (32).

3. The active positioning structure for a stamping die according to claim 1, characterized in that: A spring is connected between the inner wall of the air cylinder (33) and the piston rod (331) for resetting the piston rod (331).

4. The active positioning structure for a stamping die according to claim 1, characterized in that: The two sides of the push plate (34) are respectively slidably connected to the limiting columns (36), one end of the limiting column (36) away from the push plate (34) is connected to the positioning plate (35), and the outer wall of the limiting column (36) is located between the push plate (34) and the positioning plate (35) and is movably sleeved with a spring.

5. The stamping die movable positioning structure according to claim 1, characterized in that: A mounting plate (24) is connected to the top of the workbench (1) at a position below the punching block (23), and a punching groove (25) is provided at the top of the mounting plate (24) at a position corresponding to the punching block (23).

6. The stamping die movable positioning structure according to claim 1, characterized in that: The feeding mechanism (4) includes a through slot (41), two through slots (41) are respectively opened at positions on both sides of the top of the workbench (1), a lifting plate (42) is provided inside the workbench (1) below the through slot (41), and a plurality of lifting blocks (43) are connected to the top of the lifting plate (42) inside the through slot (41).

7. The stamping die movable positioning structure according to claim 6, characterized in that: Synchronous wheels (44) are respectively rotated on both sides of the inner wall of the workbench (1), and the two synchronous wheels (44) are connected to each other through a synchronous belt (49). The surfaces of the synchronous wheels (44) are respectively connected to rocker arms (45), and the ends of the rocker arms (45) away from the synchronous wheels (44) are respectively hinged to hinged arms (46). The hinged arms (46) are respectively connected to both sides of the lifting plate (42). The inner wall of the workbench (1) is connected to a servo motor (47) that drives the synchronous wheels (44) through a mounting frame (48).

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