Continuous stretching device

Abstract

The utility model belongs to the technical field of punch forming, and particularly relates to a continuous stretching device which comprises a working table, a plurality of limiting rods are fixedly arranged at the top of the working table, a top plate is fixedly arranged at the tops of the limiting rods, a connecting plate is movably arranged on the limiting rods, an air cylinder is fixedly arranged at the bottom of the top plate, and the connecting plate is movably arranged on the connecting plate. The output end of the air cylinder is fixedly connected with the top of the connecting plate, and a first stamping column, a second stamping column, a third stamping column and a fourth stamping column are fixedly arranged at the bottom of the connecting plate. And when the locking block is separated from the clamping block, the lifting frame can move upwards through thrust applied to the lifting frame by the multiple first springs, the multiple forming bases can be blocked by the lifting frame, the situations that materials splash and hurt people in the machining process can be effectively prevented, and the use safety of the equipment is improved.

Description

Technical Field

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

[0002] A drawing die is a special tool used for metal drawing processing. It places a metal sheet into a die and uses the force of a press to plastically deform the metal sheet to obtain the desired shape and size. The design and manufacture of a drawing die is crucial to production efficiency, product quality and cost control.

[0003] However, for the stretching equipment without protective structure, the forming base and the stamping column are exposed to the sight of the staff during the stretching process. If material splashing occurs, it will cause harm to the relevant personnel. Therefore, a continuous stretching device is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a continuous stretching device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a continuous stretching device, including a workbench, a plurality of limit rods are fixedly provided on the top of the workbench, a same top plate is fixedly provided on the top of the plurality of limit rods, a same connecting plate is movably provided on the plurality of limit rods, a cylinder is fixedly provided on the bottom of the top plate, an output end of the cylinder is fixedly connected to the top of the connecting plate, a first stamping column, a second stamping column, a third stamping column and a fourth stamping column are fixedly provided on the bottom of the connecting plate, a first molding base, a second molding base, a third molding base and a fourth molding base are fixedly provided on the top of the workbench, a clamping assembly is provided on the top of the workbench, the clamping assembly is located outside the first molding base, and a protective structure is provided on the top of the workbench.

[0006] As a further description of the above technical solution:

[0007] The protective structure includes an installation frame fixedly connected to the top of the workbench, a installation cavity is provided on the installation frame, a plurality of first springs are fixedly provided on the bottom inner wall of the installation cavity, a same lifting frame is fixedly provided on the top of the plurality of first springs, the lifting frame and the installation cavity are movably connected, a horizontal plate is fixedly provided on one side of the lifting frame, a plug plate is fixedly provided on the bottom of the horizontal plate, a card block is fixedly provided on one side of the plug plate, a locking box is fixedly provided on one side of the installation frame, a pull rod is movably provided on the inner wall of one side of the locking box, and a locking block is fixedly provided at one end of the pull rod.

[0008] As a further description of the above technical solution:

[0009] Two slide bars are fixedly provided on one side of the locking block away from the clamping block. The two slide bars penetrate through an inner wall of one side of the locking box and are movably connected to the inner wall of one side of the locking box.

[0010] As a further description of the above technical solution:

[0011] A second spring is sleeved on the pull rod, one end of the second spring is in contact with one side of the locking block, and the other end of the second spring is in contact with an inner wall of one side of the locking box.

[0012] As a further description of the above technical solution:

[0013] Two limiting grooves are arranged on the inner walls on both sides of the installation cavity, and two limiting plates are fixedly arranged on both sides of the lifting frame, and the limiting plates are adapted to the limiting grooves.

[0014] As a further description of the above technical solution:

[0015] The sides of the clamping block and the locking block that are close to each other are both provided with inclined surfaces, and the inclined surface on one side of the clamping block is parallel to the inclined surface on one side of the locking block.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the prior art, the continuous stretching device, by setting an installation frame, a lifting frame, a limit plate and a first spring, pulls the pull rod outward during processing, and the pull rod drives the locking block. When the locking block is out of contact with the blocking block, the thrust applied to the lifting frame by multiple first springs can make it move upward. The lifting frame can block multiple forming bases, which can effectively prevent materials from splashing during processing and causing injuries, thereby improving the safety of equipment use.

[0018] 2. Compared with the prior art, the continuous stretching device, by setting a locking box, a pull rod, a locking block and a sliding rod, after each stamping is completed, the user presses down the lifting frame, and the lifting frame drives the card block to move down. The two inclined surfaces of the card block and the locking block fit together, and the card block squeezes the locking block. When the two inclined surfaces are out of contact, the locking block is stuck at the top of the card block. At this time, the lifting frame is retracted into the installation cavity, which can facilitate the user to take out the material that has completed the preliminary stamping and place it in the second forming base. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a continuous stretching device proposed by the utility model;

[0020] Figure 2 This is a first-perspective stereoscopic schematic diagram of a continuous stretching device proposed by the utility model after removing the protective structure;

[0021] Figure 3This is a second-angle stereoscopic schematic diagram of a continuous stretching device proposed by the utility model after removing the protective structure;

[0022] Figure 4 This is a schematic diagram of an explosion of a protective structure in a continuous stretching device proposed by the utility model;

[0023] Figure 5 This is an enlarged structural schematic diagram of part A in a continuous stretching device proposed by the utility model.

[0024] Legend:

[0025] 1. Workbench; 2. Limit rod; 3. Top plate; 4. Connecting plate; 5. Cylinder; 6. First stamping column; 7. Second stamping column; 8. Third stamping column; 9. Fourth stamping column; 10. First forming base; 11. Second forming base; 12. Third forming base; 13. Fourth forming base; 14. Clamping assembly; 15. Protective structure; 151. Mounting frame; 152. First spring; 153. Lifting frame; 154. Limit plate; 155. Horizontal plate; 156. Insert plate; 157. Block; 158. Locking box; 159. Pull rod; 160. Locking block; 161. Sliding rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figures 1 to 5 The utility model provides a continuous stretching device: comprising a workbench 1, a plurality of limit rods 2 are fixedly provided on the top of the workbench 1, a same top plate 3 is fixedly provided on the tops of the plurality of limit rods 2, a same connecting plate 4 is movably provided on the plurality of limit rods 2, a cylinder 5 is fixedly provided on the bottom of the top plate 3, an output end of the cylinder 5 is fixedly connected to the top of the connecting plate 4, a first stamping column 6, a second stamping column 7, a third stamping column 8 and a fourth stamping column 9 are fixedly provided on the bottom of the connecting plate 4, a first forming base 10, a second forming base 11, a third forming base 12 and a fourth forming base 13 are fixedly provided on the top of the workbench 1, a clamping assembly 14 is provided on the top of the top of the workbench 1, and the clamping assembly 14 is located outside the first forming base 10;

[0028] Reference Figure 4In order to achieve the protection purpose, a protection structure 15 is provided on the top of the workbench 1. The protection structure 15 includes a mounting frame 151 fixedly connected to the top of the workbench 1. A mounting cavity is provided on the mounting frame 151. A plurality of first springs 152 are fixedly provided on the bottom inner wall of the mounting cavity. A same lifting frame 153 is fixedly provided on the top of the plurality of first springs 152. The lifting frame 153 is movably connected to the mounting cavity. Two limiting grooves are provided on the inner walls on both sides of the mounting cavity. Two limiting plates 154 are fixedly provided on both sides of the lifting frame 153. The limiting plates 154 are adapted to the limiting grooves. A horizontal plate 155 is fixedly provided on one side of the lifting frame 153. A plug plate 156 is fixedly provided on the bottom of the horizontal plate 155. A block 157 is fixedly provided on one side of the plug plate 156. A locking box 158 is fixedly provided on one side of the mounting frame 151. A pull rod 159 is movably provided on the inner wall of one side of the locking box 158, and a locking block 160 is fixedly provided at one end of the pull rod 159. A side where the block 157 and the locking block 160 are close to each other is provided with an inclined surface, and the inclined surface on one side of the block 157 is parallel to the inclined surface on one side of the locking block 160. The coordinated use of the block 157, the locking block 160 and the pull rod 159 can realize the rapid retraction and release of the lifting frame 153, which is convenient for users to load and unload materials. A second spring is sleeved on the pull rod 159, and one end of the second spring is in contact with one side of the locking block 160, and the other end of the second spring is in contact with the inner wall of one side of the locking box 158. Before processing, the lifting frame 153 is raised, and multiple molded bases can be blocked during processing, which can effectively prevent materials from splashing and bursting, thereby improving the safety of equipment use;

[0029] Reference Figure 5 In order to prevent the locking block 160 from rotating, two sliding bars 161 are fixedly provided on the side of the locking block 160 away from the blocking block 157. The two sliding bars 161 penetrate the inner wall of one side of the locking box 158 and are movably connected to the inner wall of one side of the locking box 158. The two sliding bars 161 and the locking box 158 are movably installed to limit the pull rod 159 and the locking block 160 to prevent them from rotating.

[0030] Working principle: the lifting frame 153 is completely locked in the installation cavity before being released. The height of the installation frame 151 is lower than the height of multiple forming bases. When in use, first place the metal sheet to be processed in the first forming base 10, then press the pressure ring on the top of the metal plate and place it on the top of the first forming base 10, then press the clamping assembly 14 on the top of the pressure ring to position the pressure ring, then pull the pull rod 159 outward, the pull rod 159 drives the locking block 160, when the locking block 160 is out of contact with the block 157, the thrust applied by the multiple first springs 152 to the lifting frame 153 can make it move upward, the lifting frame 153 can block the multiple forming bases, which can effectively prevent materials from splashing during the processing process and causing injuries, thereby improving the safety of the equipment. During processing, start the cylinder 5, the cylinder 5 pushes the connecting plate 4, and the connecting plate 4 drives the multiple stamping columns to press down, the first The stamping column 6 stamps the metal sheet in the first forming base 10. After the stamping is completed, the cylinder 5 is started to drive the connecting plate 4 to move upward, and the connecting plate 4 then drives multiple stamping columns to move upward. When the first stamping column 6 is out of the first forming base 10, the user presses down the lifting frame 153, and the lifting frame 153 drives the clamping block 157 to move downward. The clamping block 157 fits with the two inclined surfaces of the locking block 160, and the clamping block 157 squeezes the locking block 160. When the two inclined surfaces are out of contact, the locking block 160 is stuck on the top of the clamping block 157. At this time, the lifting frame 153 is retracted into the installation cavity, which can facilitate the user to take out the material that has completed the preliminary stamping and place it in the second forming base 11, and then repeat the above operation steps, release the lifting frame 153 and then stamp again, until the material is processed in the four forming bases in turn, and enters the fourth forming base 13 and is penetrated, then the stretching process of the metal sheet is completed.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A continuous stretching device, comprising a workbench (1), characterized in that: A plurality of limit rods (2) are fixedly provided on the top of the workbench (1), a same top plate (3) is fixedly provided on the top of the plurality of limit rods (2), a same connecting plate (4) is movably provided on the plurality of limit rods (2), a cylinder (5) is fixedly provided on the bottom of the top plate (3), an output end of the cylinder (5) is fixedly connected to the top of the connecting plate (4), a first stamping column (6), a second stamping column (7), a third stamping column (8) and a fourth stamping column (9) are fixedly provided on the bottom of the connecting plate (4), a first molding base (10), a second molding base (11), a third molding base (12) and a fourth molding base (13) are fixedly provided on the top of the workbench (1), a clamping assembly (14) is provided on the top of the workbench (1), and the clamping assembly (14) is located outside the first molding base (10), and a protective structure (15) is provided on the top of the workbench (1).

2. A continuous stretching device according to claim 1, characterized in that: The protective structure (15) comprises an installation frame (151) fixedly connected to the top of the workbench (1), an installation cavity is provided on the installation frame (151), a plurality of first springs (152) are fixedly provided on the bottom inner wall of the installation cavity, a same lifting frame (153) is fixedly provided on the top of the plurality of first springs (152), the lifting frame (153) and the installation cavity are movably connected, a horizontal plate (155) is fixedly provided on one side of the lifting frame (153), a plug plate (156) is fixedly provided on the bottom of the horizontal plate (155), a clamping block (157) is fixedly provided on one side of the plug plate (156), a locking box (158) is fixedly provided on one side of the installation frame (151), a pull rod (159) is movably provided on the inner wall of one side of the locking box (158), and a locking block (160) is fixedly provided on one end of the pull rod (159).

3. A continuous stretching device according to claim 2, characterized in that: Two slide bars (161) are fixedly provided on one side of the locking block (160) away from the clamping block (157), and the two slide bars (161) penetrate through an inner wall of one side of the locking box (158) and are movably connected to the inner wall of one side of the locking box (158).

4. A continuous stretching device according to claim 2, characterized in that: A second spring is sleeved on the pull rod (159), one end of the second spring is in contact with one side of the locking block (160), and the other end of the second spring is in contact with an inner wall of one side of the locking box (158).

5. A continuous stretching device according to claim 2, characterized in that: Two limiting grooves are provided on the inner walls on both sides of the installation cavity, and two limiting plates (154) are fixedly provided on both sides of the lifting frame (153), and the limiting plates (154) are adapted to the limiting grooves.

6. A continuous stretching device according to claim 2, characterized in that: The sides of the clamping block (157) and the locking block (160) that are close to each other are both provided with inclined surfaces, and the inclined surface on one side of the clamping block (157) and the inclined surface on one side of the locking block (160) are parallel.

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