Automatic stamping die for clamping jaw

Abstract

The utility model discloses an automatic clamping jaw stamping die which comprises a lower die body, a stamping groove is formed in the top end of the lower die body, an upper die body is arranged above the lower die body, and a stamping head is arranged at the bottom end of the upper die body. The demolding mechanism is arranged in the lower mold, the demolding mechanism comprises a movable plate, ejector rods and first springs, the movable plate is arranged in the lower mold, the ejector rods are fixed to the two sides of the top end of the movable plate, and the outer walls of the bottoms of the ejector rods are sleeved with the first springs; and the limiting mechanisms are arranged on the two sides of the interior of the lower mold, each limiting mechanism comprises a pull rod, a second spring and an arc-shaped block, the pull rods are arranged on the two sides of the interior of the lower mold in a penetrating mode, and the arc-shaped blocks are fixed to the ends, away from the second springs, of the pull rods. According to the stamping die, the convenience of demoulding is improved, the stamping head is convenient to replace, the use is flexible and convenient, the stamping is convenient to buffer, and the damage of the die is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to an automatic stamping die for clamping claws. Background Art

[0002] The jaws are machine tool accessories used to clamp, tighten and position workpieces in machining. They are usually installed on the chuck, and the workpiece is fixed by changing the size of the jaws. They are driven by a motor or pneumatic or hydraulic system. The jaws have a simple structure and are easy to operate. They are suitable for workpieces with smaller diameters. According to different control methods, the jaws can be divided into manual jaws, pneumatic jaws, hydraulic jaws and electric jaws. During the production process, the jaws need to be stamped, and stamping requires the use of stamping dies.

[0003] When a stamping die is used to stamp the claw blank, workers need to manually take it out of the stamping groove for demoulding after the blank is stamped. Since the blank is embedded in the stamping groove, demoulding is troublesome, resulting in low processing efficiency, so improvement is urgently needed. Utility Model Content

[0004] The utility model aims to provide a claw automatic stamping die to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a claw automatic stamping die, comprising:

[0006] A lower mold, wherein a punching groove is arranged at the top of the lower mold, an upper mold is arranged above the lower mold, and a punching head is arranged at the bottom of the upper mold;

[0007] A demoulding mechanism, wherein the demoulding mechanism is arranged inside the lower mold, and the demoulding mechanism comprises a movable plate, a push rod, and a first spring. The movable plate is arranged inside the lower mold, and the push rods are fixed on both sides of the top of the movable plate, and the top of the push rod extends to the bottom of the stamping groove, and the first spring is sleeved on the outer wall of the bottom of the push rod, and the top of the first spring is fixedly connected to the inner wall of the lower mold, and the bottom of the first spring is fixedly connected to the push rod;

[0008] The limiting mechanism is arranged on both sides of the lower mold, and the limiting mechanism includes a pull rod, a second spring, and an arc block. The pull rod is penetrated on both sides of the lower mold, and one end of the pull rod extends to the outside of the lower mold. The second spring is sleeved on the outer wall of one end of the pull rod, and one end of the second spring is fixedly connected to the pull rod, and the other end of the second spring is fixedly connected to the outer wall of the lower mold. The arc block is fixed to one end of the pull rod away from the second spring, and the arc block is tightly fitted with the movable plate.

[0009] Preferably, guide rods are fixed at the corner positions of the top end of the lower mold, and the guide rods pass through the upper mold to facilitate guiding the upper mold.

[0010] Preferably, a positioning block is fixed on the outer wall of the bottom of the guide rod, and a movable block is mounted on the outer wall of the guide rod above the positioning block, and a buffer spring is installed between the movable block and the positioning block to facilitate buffering of the stamping.

[0011] Preferably, a mounting groove is provided at the bottom end of the upper die for mounting the punch head.

[0012] Preferably, the top end of the punch head extends to the inside of the mounting groove, and positioning grooves are provided on both outer walls of the top of the punch head to facilitate positioning of the positioning block.

[0013] Preferably, a bidirectional threaded rod is installed inside the installation groove through a bearing, and one end of the bidirectional threaded rod extends to the outside of the upper mold for driving the translation of the positioning block.

[0014] Preferably, positioning blocks are mounted on the outer walls on both sides of the bidirectional threaded rod, and the positioning blocks are threadedly connected to the bidirectional threaded rod, and the positioning blocks are tightly engaged with the positioning grooves for disassembly and assembly of the punch head.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the automatic stamping die of the clamping claw is provided with a movable plate, a push rod, a first spring, a pull rod, a second spring, and an arc block, and the clamping claw blank is placed in the stamping groove at the top of the lower die. The blank presses the push rod downward to overcome the elasticity of the first spring and drive the movable plate to move downward. The movable plate squeezes the arc block so that the pull rod overcomes the elasticity of the second spring and moves horizontally to both sides. When the movable plate moves down to the bottom of the arc block, under the rebound action of the second spring, the pull rod drives the arc block to move horizontally to the top of the movable plate and limits the movable plate. After the stamping is completed, the pull rod is pulled to both sides to move the arc block away from the surface of the movable plate to release the movable plate. The movable plate moves upward under the elastic action of the first spring and drives the push rod to move upward synchronously. The push rod pushes the blank out of the stamping groove, so that the blank is smoothly demolded, thereby improving the convenience of demolding and improving the stamping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the lower mold structure of the utility model;

[0018] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4 It is a schematic diagram of the enlarged cross-sectional structure of the upper mold of the utility model.

[0020] In the figure: 1. lower mold; 2. demoulding mechanism; 201. movable plate; 202. ejector rod; 203. first spring; 3. stamping groove; 4. guide rod; 5. upper mold; 6. stamping head; 601. positioning groove; 7. limiting mechanism; 701. pull rod; 702. second spring; 703. arc block; 8. movable block; 9. buffer spring; 10. positioning block; 11. mounting groove; 12. bidirectional threaded rod; 13. positioning block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides an embodiment: a claw automatic stamping die, comprising:

[0023] A lower mold 1, a punching groove 3 is arranged at the top of the lower mold 1, an upper mold 5 is arranged above the lower mold 1, and a punching head 6 is arranged at the bottom of the upper mold 5;

[0024] The demoulding mechanism 2 is arranged inside the lower mold 1, and the demoulding mechanism 2 includes a movable plate 201, a push rod 202, and a first spring 203. The movable plate 201 is arranged inside the lower mold 1, and the push rod 202 is fixed on both sides of the top of the movable plate 201, and the top of the push rod 202 extends to the bottom of the stamping groove 3. The first spring 203 is sleeved on the outer wall of the bottom of the push rod 202, and the top of the first spring 203 is fixedly connected to the inner wall of the lower mold 1, and the bottom end of the first spring 203 is fixedly connected to the push rod 202;

[0025] When in use, the blank presses the push rod 202 downward to overcome the elasticity of the first spring 203 and drive the movable plate 201 to move downward, and the movable plate 201 squeezes the arc block 703 so that the pull rod 701 overcomes the elasticity of the second spring 702 and moves horizontally to both sides. When the movable plate 201 moves downward to the bottom of the arc block 703, under the rebound effect of the second spring 702, the pull rod 701 drives the arc block 703 to move horizontally to the top of the movable plate 201 and limits the movable plate 201.

[0026] The limiting mechanism 7 is arranged on both sides of the lower mold 1. The limiting mechanism 7 includes a pull rod 701, a second spring 702, and an arc block 703. The pull rod 701 is penetrated on both sides of the lower mold 1, and one end of the pull rod 701 extends to the outside of the lower mold 1. The second spring 702 is sleeved on the outer wall of one end of the pull rod 701, and one end of the second spring 702 is fixedly connected to the pull rod 701, and the other end of the second spring 702 is fixedly connected to the outer wall of the lower mold 1. The arc block 703 is fixed to one end of the pull rod 701 away from the second spring 702, and the arc block 703 is tightly fitted with the movable plate 201.

[0027] After the stamping is completed, the external driving device drives the upper mold 5 to move upward. At this time, the pull rods 701 are pulled to both sides so that the arc block 703 is moved away from the surface of the movable plate 201, and the movable plate 201 is released. The movable plate 201 moves upward under the elastic action of the first spring 203 and drives the ejector rod 202 to move upward synchronously. The ejector rod 202 ejects the blank from the stamping groove 3, so that the blank is smoothly demoulded;

[0028] A guide rod 4 is fixed at the corner position of the top of the lower mold 1, and the guide rod 4 passes through the upper mold 5 to facilitate guiding the upper mold 5;

[0029] A positioning block 10 is fixed on the outer wall at the bottom of the guide rod 4, and a movable block 8 is mounted on the outer wall of the guide rod 4 above the positioning block 10, and a buffer spring 9 is installed between the movable block 8 and the positioning block 10 to facilitate buffering of the stamping;

[0030] The bottom end of the upper die 5 is provided with a mounting groove 11 for mounting the punch head 6;

[0031] The top of the punch head 6 extends to the inside of the mounting groove 11, and positioning grooves 601 are provided on both outer walls of the top of the punch head 6 to facilitate positioning of the positioning block 13;

[0032] A bidirectional threaded rod 12 is installed inside the installation groove 11 through a bearing, and one end of the bidirectional threaded rod 12 extends to the outside of the upper mold 5, which is used for driving the translation of the positioning block 13;

[0033] Positioning blocks 13 are mounted on the outer walls on both sides of the bidirectional threaded rod 12 , and the positioning blocks 13 are threadedly connected to the bidirectional threaded rod 12 , and the positioning blocks 13 are tightly engaged with the positioning grooves 601 for disassembly and assembly of the punch head 6 .

[0034] When the embodiment of the present application is in use: first, the claw blank is placed in the stamping groove 3 at the top of the lower mold 1. At this time, the blank presses the push rod 202 downward to overcome the elasticity of the first spring 203 and drive the movable plate 201 to move downward. The movable plate 201 squeezes the arc block 703 so that the pull rod 701 overcomes the elasticity of the second spring 702 and moves horizontally to both sides. When the movable plate 201 moves down to the bottom of the arc block 703, under the rebound action of the second spring 702, the pull rod 701 drives the arc block 703 to move horizontally to the top of the movable plate 201 and limits the movable plate 201. Secondly, by operating the external driving device, it drives the upper mold 5 to move downward, and the upper mold 5 drives the punching head 6 to press down. The punching head 6 punches the blank, and the guide rod 4 guides the upper mold 5. During the stamping process, the upper mold 5 moves downward and presses the movable block 8. The movable block 8 moves downward to compress the buffer spring 9. , buffering the stamping, the positioning block 10 limits the upper mold 5, thereby reducing the damage caused by the stamping to the lower mold 1. Then, after the stamping is completed, the external driving device drives the upper mold 5 to move upward. At this time, the pull rod 701 is pulled to both sides to make the arc block 703 move away from the surface of the movable plate 201, and the movable plate 201 is released. The movable plate 201 moves upward under the elastic action of the first spring 203 and drives the push rod 202 to move upward synchronously. The push rod 202 pushes the blank out of the stamping groove 3, so that the blank is smoothly demolded, thereby improving the convenience of demolding and improving the stamping efficiency. In addition, when the punch head 6 needs to be replaced, the bidirectional threaded rod 12 is rotated to make the positioning block 13 move to both sides and disengage from the positioning groove 601, and then the punch head 6 is pulled down to move it out of the mounting groove 11, and the punch head 6 can be removed, thereby facilitating the disassembly and replacement of the punch head 6.

[0035] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A claw automatic stamping die, characterized in that: include: A lower mold (1), wherein a punching groove (3) is arranged at the top end of the lower mold (1), an upper mold (5) is arranged above the lower mold (1), and a punching head (6) is arranged at the bottom end of the upper mold (5); A demoulding mechanism (2), wherein the demoulding mechanism (2) is arranged inside the lower mold (1), and comprises a movable plate (201), a push rod (202), and a first spring (203). The movable plate (201) is arranged inside the lower mold (1), and the push rod (202) is fixed to both sides of the top of the movable plate (201), and the top of the push rod (202) extends to the bottom of the stamping groove (3). The first spring (203) is sleeved on the outer wall of the bottom of the push rod (202), and the top of the first spring (203) is fixedly connected to the inner wall of the lower mold (1), and the bottom of the first spring (203) is fixedly connected to the push rod (202); A limiting mechanism (7), wherein the limiting mechanism (7) is arranged on both sides inside the lower mold (1), and the limiting mechanism (7) comprises a pull rod (701), a second spring (702), and an arc block (703). The pull rod (701) is passed through both sides inside the lower mold (1), and one end of the pull rod (701) extends to the outside of the lower mold (1), the second spring (702) is sleeved on the outer wall of one end of the pull rod (701), and one end of the second spring (702) is fixedly connected to the pull rod (701), and the other end of the second spring (702) is fixedly connected to the outer wall of the lower mold (1), the arc block (703) is fixed to one end of the pull rod (701) away from the second spring (702), and the arc block (703) is tightly fitted with the movable plate (201).

2. The automatic stamping die for claws according to claim 1, characterized in that: Guide rods (4) are fixed at the corner positions of the top end of the lower mold (1), and the guide rods (4) penetrate the upper mold (5).

3. The automatic stamping die for clamping claws according to claim 2, characterized in that: A positioning block (10) is fixed on the outer wall at the bottom of the guide rod (4), and a movable block (8) is sleeved on the outer wall of the guide rod (4) above the positioning block (10), and a buffer spring (9) is installed between the movable block (8) and the positioning block (10).

4. The automatic stamping die for clamping claws according to claim 1, characterized in that: The bottom end of the upper mold (5) is provided with a mounting groove (11).

5. The automatic stamping die for clamping claws according to claim 1, characterized in that: The top end of the punch head (6) extends to the inside of the mounting groove (11), and positioning grooves (601) are provided on both outer walls of the top of the punch head (6).

6. The automatic stamping die for clamping claws according to claim 4, characterized in that: A bidirectional threaded rod (12) is installed inside the installation groove (11) via a bearing, and one end of the bidirectional threaded rod (12) extends to the outside of the upper mold (5).

7. The automatic stamping die for clamping claws according to claim 6, characterized in that: Positioning blocks (13) are mounted on the outer walls of both sides of the bidirectional threaded rod (12), and the positioning blocks (13) are threadedly connected to the bidirectional threaded rod (12), and the positioning blocks (13) are tightly engaged with the positioning grooves (601).

Images