Clamping mechanism for cold extrusion workpiece groove milling

Abstract

The utility model relates to the technical field of cold extrusion workpiece groove milling, in particular to a clamping mechanism for cold extrusion workpiece groove milling, which comprises a base, a placing groove is arranged at the upper end of the base, and a movable plate is slidably connected in the placing groove; and a plurality of sliding grooves are formed, clamping plates are slidably connected into the sliding grooves, and protective pads are fixedly connected to the side walls of the clamping plates. Through the weight of a workpiece, a movable plate slides downwards into a containing groove, a motor drives a main gear to rotate, meanwhile, a plurality of tooth blocks drive an annular plate to rotate, the annular plate drives a plurality of clamping teeth to rotate, meanwhile, the gear rotates along with the clamping teeth, the gear drives a rod body to rotate, and a clamping plate slides out of a sliding groove; the protective pad is arranged on the side wall of the workpiece, so that the protective pad is in contact with the side wall of the workpiece, the workpiece is clamped and fixed from the periphery of the workpiece, the workpiece is conveniently clamped and fixed, meanwhile, the side wall of the workpiece is protected through the protective pad, and the side wall of the workpiece is prevented from being scratched when the clamping plate clamps and fixes the workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of cold extrusion workpiece milling groove processing, in particular to a clamping mechanism for cold extrusion workpiece milling groove. Background Art

[0002] A cold extrusion workpiece is a part made by a cold extrusion process. Cold extrusion is a processing method in which a metal blank is placed in a cold extrusion die cavity, and at room temperature, pressure is applied to the blank through a punch fixed on a press to cause the metal blank to undergo plastic deformation to produce a part. This processing method uses a die to control the flow of metal and forms parts by transferring a large amount of metal volume. During the milling process of a cold extrusion workpiece, a special clamping mechanism is required to ensure the stability and accuracy of the workpiece during the processing. This clamping mechanism is usually called a special fixture for milling grooves.

[0003] When milling a workpiece, the workpiece needs to be clamped and fixed. The clamps on existing milling equipment are complicated to operate when clamping the workpiece, and the fixing effect is poor, which can easily cause the workpiece to shift during the processing process. When clamping and removing the workpiece, it is time-consuming and laborious, affecting the work efficiency of the staff. Utility Model Content

[0004] The utility model aims to provide a clamping mechanism for cold extruded workpiece groove milling, which can facilitate the clamping and fixing of the workpiece and the cleaning of the debris generated during the groove milling of the workpiece, so as to solve the problem in the prior art that it is inconvenient to clamp and fix the workpiece and it is inconvenient to clean the debris generated during the groove milling of the workpiece.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A clamping mechanism for milling grooves of cold-extruded workpieces comprises a base, a placement groove is provided at the upper end of the base, a movable plate is slidably connected inside the placement groove, a spring is fixedly connected to the bottom of the placement groove, and the upper end of the spring is fixedly connected to the lower end of the movable plate; a plurality of slide grooves, wherein the plurality of slide grooves are distributed in a circular array inside the base, the end of the slide groove is communicated with the placement groove, a clamping plate is slidably connected inside the slide groove, and a protective pad is fixedly connected to the side wall of the clamping plate.

[0007] Preferably, a plurality of gears are rotatably connected inside the base, a plurality of rods are rotatably connected inside the base, and ends of the rods are fixedly connected to side walls of the gears.

[0008] Preferably, a slot hole is provided at the end of the clamping plate, and the rod body is rotatably connected to the inner thread of the slot hole.

[0009] Preferably, a ring plate is rotatably connected inside the base, and a plurality of latch teeth are fixedly connected to the upper end of the ring plate. The plurality of latch teeth are distributed in a ring array, and the latch teeth are meshed with the side wall of the gear.

[0010] Preferably, a protrusion is fixedly connected to the side wall of the base, a motor is fixedly connected to the upper end of the protrusion, a main gear is rotatably connected inside the protrusion, and the output end of the motor is fixedly connected to the upper end of the main gear.

[0011] Preferably, a plurality of tooth blocks are fixedly connected to the side wall of the ring plate, the plurality of tooth blocks are distributed in a ring array, and the side wall of the main gear is meshed with the tooth blocks.

[0012] Compared with the prior art, the advantages of the utility model are:

[0013] 1. The operator installs the base on the upper end of the turning and milling machine, and then places the workpiece on the upper end of the movable plate. The weight of the workpiece makes the movable plate slide down to the inside of the placement slot, and the main gear is driven by the motor to rotate. At the same time, multiple tooth blocks drive the ring plate to rotate, and the ring plate drives multiple clamping teeth to rotate. At the same time, the gears rotate accordingly, and the gears drive the rod body to rotate. The clamp plate slides out of the slide slot, so that the protective pad contacts the side wall of the workpiece, and the workpiece is clamped and fixed from all sides, so as to facilitate the clamping and fixing of the workpiece. At the same time, the side wall of the workpiece is protected by the protective pad to avoid scratches on the side wall of the workpiece when the clamp plate clamps and fixes the workpiece.

[0014] 2. After the workpiece is clamped and fixed, the workpiece is milled by the milling equipment. After the workpiece milling is completed, the clamping plate drives the protective pad to slide into the inside of the slide slot to loosen the workpiece, and then the operator takes the workpiece out of the placement slot, and at the same time, the elasticity of the spring pushes the movable plate upward to eject the debris generated during the milling of the workpiece inside the placement slot, thereby facilitating the cleaning of the debris generated during the milling of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of the external structure of a clamping mechanism for milling grooves of a cold extruded workpiece as viewed from above.

[0016] Figure 2 The utility model is a schematic diagram of a top view and a cross-sectional structure of a clamping mechanism for milling a groove of a cold extruded workpiece.

[0017] Figure 3 The utility model discloses a front sectional structural schematic diagram of a clamping mechanism for milling grooves of a cold extruded workpiece.

[0018] Figure 4 The utility model provides a schematic diagram of the top view of the ring plate structure of a clamping mechanism for milling grooves of a cold extruded workpiece.

[0019] In the figure: 1 base, 2 placement slot, 3 movable plate, 4 spring, 5 slide slot, 6 clamping plate, 7 protection pad, 8 slot hole, 9 gear, 10 rod body, 11 ring plate, 12 clamping tooth, 13 gear block, 14 protrusion, 15 motor, 16 main gear. DETAILED DESCRIPTION

[0020] 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.

[0021] Reference Figure 1-4 A clamping mechanism for milling a cold extruded workpiece includes a base 1, a placement groove 2 is arranged at the upper end of the base 1, a movable plate 3 is slidably connected inside the placement groove 2, a spring 4 is fixedly connected to the bottom of the placement groove 2, and the upper end of the spring 4 is fixedly connected to the lower end of the movable plate 3; a plurality of slide grooves 5 are arranged in a circular array inside the base 1, the end of the slide groove 5 is connected to the placement groove 2, a clamping plate 6 is slidably connected inside the slide groove 5, and a protective pad 7 is fixedly connected to the side wall of the clamping plate 6. The operator installs the base 1 on the upper end of the milling machine, and then places the workpiece on the upper end of the movable plate 3, so that the weight of the workpiece itself makes The movable plate 3 slides downward to the inside of the placement slot 2, and then the clamping plate 6 slides out of the slide slot 5, so that the protective pad 7 contacts the side wall of the workpiece, clamps and fixes the workpiece from all sides, and at the same time protects the side wall of the workpiece by the protective pad 7. After the workpiece is clamped and fixed, the workpiece is milled by the milling equipment. After the workpiece milling is completed, the clamping plate 6 drives the protective pad 7 to slide into the inside of the slide slot 5 to release the workpiece, and then the operator takes the workpiece out of the placement slot 2, and at the same time, the elasticity of the spring 4 pushes the movable plate 3 upward to eject the debris generated during the milling of the workpiece inside the placement slot 2.

[0022] A plurality of gears 9 are rotatably connected inside the base 1 . A plurality of rods 10 are rotatably connected inside the base 1 . The ends of the rods 10 are fixedly connected to the side walls of the gears 9 . The gears 9 drive the rods 10 to rotate.

[0023] A slot hole 8 is provided at the end of the clamping plate 6, and the rod body 10 is rotatably connected to the inner thread of the slot hole 8. When the rod body 10 rotates, the clamping plate 6 slides horizontally.

[0024] A ring plate 11 is rotatably connected inside the base 1, and a plurality of latch teeth 12 are fixedly connected to the upper end of the ring plate 11. The plurality of latch teeth 12 are distributed in a ring array, and the latch teeth 12 are meshed with the side wall of the gear 9. The ring plate 11 drives the plurality of latch teeth 12 to rotate, and when the latch teeth 12 rotate, the gear 9 rotates accordingly.

[0025] A protrusion 14 is fixedly connected to the side wall of the base 1, a motor 15 is fixedly connected to the upper end of the protrusion 14, a main gear 16 is rotatably connected inside the protrusion 14, an output end of the motor 15 is fixedly connected to the upper end of the main gear 16, and the main gear 16 is driven to rotate by the motor 15.

[0026] The side wall of the ring plate 11 is fixedly connected with a plurality of tooth blocks 13 , which are distributed in a ring array. The side wall of the main gear 16 is meshed with the tooth blocks 13 . When the main gear 16 rotates, the plurality of tooth blocks 13 drive the ring plate 11 to rotate.

[0027] In the utility model, the operator installs the base 1 on the upper end of the turning and milling machine, and then places the workpiece on the upper end of the movable plate 3. Through the weight of the workpiece itself, the movable plate 3 slides downward to the inside of the placement groove 2, and the main gear 16 is driven to rotate by the motor 15. At the same time, multiple tooth blocks 13 drive the ring plate 11 to rotate, and the ring plate 11 drives multiple clamping teeth 12 to rotate, and the gear 9 rotates accordingly, and the gear 9 drives the rod body 10 to rotate, and the clamp plate 6 slides out of the slide groove 5, so that the protective pad 7 contacts the side wall of the workpiece, and the workpiece is clamped and fixed from all sides of the workpiece, so as to facilitate the clamping and fixing of the workpiece, and at the same time, the side wall of the workpiece is protected by the protective pad 7.

[0028] After the workpiece is clamped and fixed, the workpiece is milled by the milling equipment. After the workpiece milling is completed, the clamping plate 6 drives the protective pad 7 to slide into the slide groove 5 to loosen the workpiece, and then the operator takes the workpiece out of the placement groove 2. At the same time, the movable plate 3 is pushed upward by the elasticity of the spring 4 to eject the debris generated during the milling of the workpiece inside the placement groove 2.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A clamping mechanism for cold extruded workpiece milling grooves, characterized in that: include A base (1), wherein a placement groove (2) is provided at the upper end of the base (1), a movable plate (3) is slidably connected inside the placement groove (2), a spring (4) is fixedly connected to the bottom of the placement groove (2), and the upper end of the spring (4) is fixedly connected to the lower end of the movable plate (3); A plurality of slide grooves (5), wherein the plurality of slide grooves (5) are distributed in a circular array inside the base (1), the ends of the slide grooves (5) are connected to the placement grooves (2), a clamping plate (6) is slidably connected inside the slide grooves (5), and a protective pad (7) is fixedly connected to the side wall of the clamping plate (6).

2. A clamping mechanism for cold extrusion workpiece slot milling according to claim 1, characterized in that: A plurality of gears (9) are rotatably connected inside the base (1), and a plurality of rods (10) are rotatably connected inside the base (1), with ends of the rods (10) fixedly connected to side walls of the gears (9).

3. A clamping mechanism for cold extrusion workpiece slot milling according to claim 2, characterized in that: A slotted hole (8) is provided at the end of the clamping plate (6), and the rod body (10) is rotatably connected to the inner thread of the slotted hole (8).

4. A clamping mechanism for cold extrusion workpiece milling groove according to claim 1, characterized in that: A ring plate (11) is rotatably connected inside the base (1), and a plurality of latch teeth (12) are fixedly connected to the upper end of the ring plate (11). The plurality of latch teeth (12) are distributed in a ring array, and the latch teeth (12) mesh with the side wall of the gear (9).

5. A clamping mechanism for cold extrusion workpiece slot milling according to claim 4, characterized in that: A protrusion (14) is fixedly connected to the side wall of the base (1), a motor (15) is fixedly connected to the upper end of the protrusion (14), a main gear (16) is rotatably connected inside the protrusion (14), and an output end of the motor (15) is fixedly connected to the upper end of the main gear (16).

6. A clamping mechanism for cold extrusion workpiece slot milling according to claim 5, characterized in that: A plurality of tooth blocks (13) are fixedly connected to the side wall of the ring plate (11), the plurality of tooth blocks (13) are distributed in a ring array, and the side wall of the main gear (16) is meshed with the tooth blocks (13).

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