Fixing clamp for numerical control blade machining

Abstract

The utility model belongs to the technical field of numerical control blade machining, and particularly relates to a fixing clamp for numerical control blade machining, which comprises a bottom plate mounted on a numerical control machine tool, a first sliding groove is formed in the bottom plate, a moving assembly is arranged in the first sliding groove, a supporting plate is mounted on the moving assembly, and a clamping assembly for fixing a steel shaft is arranged on the supporting plate. The clamping assembly comprises a conical shell arranged on the supporting plate, an opening is formed in one end of the conical shell, the other end of the conical shell is in a closed state, a plurality of inclined second sliding grooves are formed in the inner wall of the conical shell, and a sliding block matched with each inclined second sliding groove is arranged in the corresponding inclined second sliding groove. One side of each sliding block is provided with an arc-shaped clamping plate located at the corresponding opening, and an arc-shaped sliding groove is formed between every two arc-shaped clamping plates. According to the device, materials with different diameters can be clamped and fixed, meanwhile, follow-up installation and replacement are facilitated, pressure can be evenly distributed, and the clamping effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to numerical control blade processing technical field, specifically related to a numerical control blade processing is with fixed clamp. BACKGROUND

[0002] In modern manufacturing, the processing of numerical control blades is crucial, especially the precise manufacturing of milling cutters has a significant impact on the quality and efficiency of various mechanical processing. In order to realize high-quality numerical control blade processing, the fixing and positioning precision of raw materials (such as steel shaft, tungsten steel, etc.) is extremely high.

[0003] In the traditional numerical control blade processing process, numerical control machine tools are usually used for cutting and grinding operations. However, when fixing raw materials such as steel shafts and tungsten steel, three-jaw chucks are commonly used. This fixing method has many significant defects and shortcomings.

[0004] Firstly, the adjustment of the three-jaw chuck completely depends on manual operation. Each time a steel shaft or tungsten steel of different size is fixed, the staff needs to spend a lot of time and effort to adjust the position of the three clamps one by one, the operation process is extremely tedious and laborious, which seriously affects the processing efficiency.

[0005] Secondly, when different diameters of steel shafts and tungsten steel need to be replaced, the process of manual disassembly and reinstallation is very time-consuming. Due to the structural characteristics of the three-jaw chuck, accurate manual adjustment is required for the re-clamping and positioning of new workpieces, which not only increases the complexity of the operation, but also easily introduces human error.

[0006] Furthermore, from the perspective of clamping force distribution, due to the limitations of the structure and adjustment method of the three-jaw chuck, the force exerted by the three clamps on the workpiece is often difficult to achieve complete uniformity. In the process of high-speed rotation, this uneven clamping force is easy to cause slight deviation of the steel shaft or tungsten steel. Even extremely small deviations can have a serious adverse effect on processing accuracy, which may cause milling cutters to have size deviations, irregular shapes, and other quality problems, thereby significantly reducing the performance and quality of the product.

[0007] Therefore, we propose a numerical control blade processing fixed clamp, which can not only clamp and fix materials of different diameters, but also facilitate subsequent installation and replacement, and secondly can make the pressure distribution uniform, improve the clamping effect. CONTENT OF THE UTILITY MODEL

[0008] The utility model aims to provide a numerical control blade processing fixed clamp, which can not only clamp and fix materials of different diameters, but also facilitate subsequent installation and replacement, and secondly can make the pressure distribution uniform, improve the clamping effect.

[0009] The utility model adopts the technical scheme as follows:

[0010] A kind of fixed clamp for numerical control blade processing, including the bottom plate being installed on numerical control machine tool, first sliding slot is set in the bottom plate, moving assembly is arranged in the first sliding slot, supporting plate is installed on the moving assembly, clamping assembly for fixing steel shaft is arranged on the supporting plate;

[0011] The clamping assembly includes a conical shell arranged on the supporting plate, the conical shell is provided with an opening at one end, and the other end is in a closed state, and a plurality of inclined second sliding slots are formed in the inner wall of the conical shell, a sliding block matched with each inclined second sliding slot is arranged inside each inclined second sliding slot, an arc-shaped clamping plate is arranged at one side of each sliding block, an arc-shaped sliding slot is formed between every two arc-shaped clamping plates, and an arc-shaped movable plate is arranged inside the arc-shaped sliding slot.

[0012] The closed end of the conical shell is provided with a telescopic assembly, a connecting disc is installed at the telescopic end of the telescopic assembly, a plurality of elastic assemblies are arranged on the outer side of the connecting disc, and the plurality of elastic assemblies and the plurality of arc-shaped clamping plates are one-to-one corresponding.

[0013] Further, the moving assembly includes a threaded rod arranged inside the first sliding slot, a threaded sleeve is sleeved on the threaded rod, the top of the threaded sleeve is connected with the supporting plate, and one end of the threaded rod penetrates out of the bottom plate and is provided with a motor.

[0014] Further, the conical shell is wider on the left and narrower on the right.

[0015] Further, the telescopic assembly includes an electric telescopic rod arranged on the closed end of the conical shell, and the telescopic end of the electric telescopic rod is connected with the connecting disc.

[0016] Further, the elastic assembly includes a hollow cylinder arranged at the bottom of the arc-shaped clamping plate, a spring is arranged inside the hollow cylinder, a piston disc is arranged at the bottom of the spring, a movable rod is arranged at the bottom of the piston disc, and the movable rod penetrates out of the hollow cylinder and is connected with the connecting disc.

[0017] Further, an anti-skid surface is arranged on the arc-shaped clamping plate.

[0018] The utility model achieves the following technical effects:

[0019] When the numerical control blade (the blade processed by the utility model is a milling cutter) is processed, it needs to be cut and polished from the steel shaft (also tungsten steel and other materials), so as to be processed into the numerical control blade, and the steel shaft needs to be clamped when being processed, when clamping, first, the steel shaft is inserted between the plurality of arc-shaped clamping plates, then the telescopic assembly is started, the telescopic assembly drives the connecting disc to move the plurality of arc-shaped clamping plates, the arc-shaped clamping plate drives the sliding block to move in the second sliding groove, the setting of the conical shell and the second sliding groove drives the arc-shaped movable plate to move in the arc-shaped sliding groove, so as to change the diameter of the insertion, and the elastic assembly is deformed to adapt to the change of the diameter, so that the arc-shaped clamping plate can be in close contact with the steel shaft. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the overall structure schematic view of the utility model;

[0021] Figure 2 is the structure schematic view of the utility model mobile assembly;

[0022] Figure 3 is the structure schematic view of the utility model clamping assembly;

[0023] Figure 4 is the structure schematic view of the utility model elastic assembly.

[0024] In the drawings, the component list represented by each number is as follows:

[0025] 1, bottom plate; 2, first sliding groove; 3, support plate; 4, conical shell; 5, second sliding groove; 6, sliding block; 7, arc-shaped clamping plate; 8, arc-shaped sliding groove; 9, arc-shaped movable plate; 10, connecting disc; 11, threaded rod; 12, threaded sleeve; 13, motor; 14, electric telescopic rod; 15, hollow cylinder; 16, spring; 17, piston disc; 18, movable rod. DETAILED DESCRIPTION

[0026] In order to make the purpose and advantages of the utility more clear and explicit, the utility is specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility, and does not strictly limit the protection scope of the utility.

[0027] As Figures 1-4 shown, the technical scheme adopted by the utility is specifically as follows: a numerical control blade processing fixing clamp, comprising a bottom plate 1 installed on a numerical control machine tool, a first sliding groove 2 is opened on the bottom plate 1, a mobile assembly is arranged inside the first sliding groove 2, a support plate 3 is installed on the mobile assembly, a clamping assembly for fixing the steel shaft is arranged on the support plate 3;

[0028] The clamping assembly comprises a conical shell 4 arranged on the support plate 3, the conical shell 4 is provided with an opening at one end and is closed at the other end, and a plurality of inclined second sliding grooves 5 are formed in the inner wall of the conical shell 4, a sliding block 6 matched with each inclined second sliding groove 5 is arranged in each inclined second sliding groove 5, and each sliding block 6 is provided with an arc-shaped clamping plate 7 located at the opening position, an arc-shaped sliding groove 8 is formed between every two arc-shaped clamping plates 7, and an arc-shaped movable plate 9 is arranged in the arc-shaped sliding groove 8.

[0029] The closed end of the conical shell 4 is provided with a telescopic assembly, the telescopic end of the telescopic assembly is provided with a connecting disc 10, a plurality of elastic assemblies are arranged on the outer side of the connecting disc 10, and the plurality of elastic assemblies are one-to-one corresponding to the plurality of arc-shaped clamping plates 7.

[0030] In order to process the cutting knife, a numerical control machine tool is generally used, and a cylindrical steel shaft or tungsten steel is generally used in the milling cutter processing process. In the steel shaft and tungsten steel manufacturing process, the steel shaft and tungsten steel are generally fixed by a three-jaw chuck, and then processed by a cutting tool. The three-jaw chuck needs to be manually adjusted during use, which is time-consuming and laborious. When other steel shafts and tungsten steels with different diameters need to be replaced, the original steel shaft and tungsten steel are manually disassembled, which is time-consuming and laborious. In addition, due to the limitation of the structure and the adjustment mode, the forces applied by the three claws on the workpiece may be different, which easily causes the steel shaft or tungsten steel to slightly deviate during high-speed rotation in the processing process. Even a small deviation can significantly affect the processing accuracy, which may cause problems such as size deviation and irregular shape of the milling cutter, thereby reducing the quality and performance of the product.

[0031] Meanwhile, the utility model discloses a telescopic assembly control to realize the clamping of steel shaft and tungsten steel, and the subsequent installation and replacement are convenient, and a plurality of clamping positions can be arranged to make the pressure distribution uniform and improve the clamping effect.

[0032] In order to move the steel shaft and tungsten steel, the moving assembly comprises a threaded rod 11 arranged in the first sliding groove 2, a threaded sleeve 12 is sleeved on the threaded rod 11, the threaded sleeve 12 is connected with the support plate 3 at the top, and the threaded rod 11 penetrates out of the bottom plate 1 at one end and is provided with a motor 13. The motor 13 drives the threaded rod 11 to rotate, so that the threaded sleeve 12 drives the support plate 3 to move the steel shaft and tungsten steel, thereby facilitating the adjustment of the processing position.

[0033] The threaded sleeve 12 is matched with the first sliding groove 2, so that the threaded sleeve 12 can move stably in the first sliding groove 2 without jamming.

[0034] The conical shell 4 is wider on the left and narrower on the right, so that the clamping assembly can move to the right, thereby adapting to steel shafts and tungsten steels with different diameters.

[0035] The telescopic assembly comprises an electric telescopic rod 14 arranged on the closed end of the conical shell 4, and the telescopic end of the electric telescopic rod 14 is connected with the connecting plate 10, so that the arc-shaped clamping plate 7 is moved by driving the connecting plate through the electric telescopic rod 14, thereby clamping.

[0036] The elastic assembly comprises a hollow cylinder 15 arranged at the bottom of the arc-shaped clamping plate 7, and a spring 16 is arranged in the hollow cylinder 15, a piston plate 17 is arranged at the bottom of the spring 16, a movable rod 18 is arranged at the bottom of the piston plate 17, the movable rod 18 penetrates out of the hollow cylinder 15 and is connected with the connecting plate 10, and when the arc-shaped movable plate 9 moves in the arc-shaped sliding groove 8 of the arc-shaped clamping plate 7, the arc-shaped clamping plate 7 drives the hollow cylinder 15 to move downward to extrude the spring 16, thereby adapting to the change of the diameter.

[0037] The arc-shaped clamping plate 7 is provided with an anti-skid surface, and the clamping effect can be improved through the anti-skid surface.

[0038] The working principle of the utility model is as follows: when the numerical control blade (the blade processed by the utility model is a milling cutter) is processed, it needs to be cut and polished from a steel shaft (also tungsten steel and other materials), so that the numerical control blade is processed, and the steel shaft needs to be clamped during processing, and during clamping, first, the steel shaft is inserted between the plurality of arc-shaped clamping plates 7, then the telescopic assembly is started, the telescopic assembly drives the connecting plate 10 to move the plurality of arc-shaped clamping plates 7, the arc-shaped clamping plate 7 drives the sliding block 6 to move in the second sliding groove 5, the conical shell 4 and the second sliding groove 5 are arranged, the arc-shaped movable plate 9 is driven to move in the arc-shaped sliding groove 8, thereby changing the diameter of the insertion, and the elastic assembly is deformed to adapt to the change of the diameter, so that the arc-shaped clamping plate 7 can be closely attached to the steel shaft.

[0039] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the art, without departing from the principle of the utility model, some improvements and refinements can be made, and these improvements and refinements should be regarded as the protection range of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to the conventional means in the art, unless otherwise specified and limited.

Claims

1. A numerical control blade machining fixing clamp, comprising a base plate (1) installed on a numerical control machine tool, a first sliding groove (2) is formed on the base plate (1), a moving assembly is arranged in the first sliding groove (2), a supporting plate (3) is installed on the moving assembly, and a clamping assembly for fixing a steel shaft is arranged on the supporting plate (3). characterized in that The clamping assembly comprises a conical shell (4) arranged on the supporting plate (3), one end of the conical shell (4) is provided with an opening, the other end is in a closed state, a plurality of inclined second sliding grooves (5) are formed in the inner wall of the conical shell (4), a sliding block (6) matched with each inclined second sliding groove (5) is arranged in each inclined second sliding groove (5), an arc-shaped clamping plate (7) located at the opening position is arranged on one side of each sliding block (6), an arc-shaped sliding groove (8) is formed between every two arc-shaped clamping plates (7), and an arc-shaped movable plate (9) is arranged in the arc-shaped sliding groove (8). The closed end of the conical shell (4) is provided with a telescopic assembly, a connecting disc (10) is installed at the telescopic end of the telescopic assembly, a plurality of elastic assemblies are arranged on the outer side of the connecting disc (10), and the plurality of elastic assemblies and the plurality of arc-shaped clamping plates (7) are one-to-one corresponding.

2. The fixture according to claim 1, wherein: The moving assembly comprises a threaded rod (11) arranged in the first sliding groove (2), a threaded sleeve (12) is sleeved on the threaded rod (11), the top of the threaded sleeve (12) is connected with the supporting plate (3), and one end of the threaded rod (11) penetrates out of the base plate (1) and is provided with a motor (13).

3. The fixture according to claim 1, wherein: The conical shell (4) is wider on the left and narrower on the right.

4. The fixture according to claim 1, wherein: The telescopic assembly comprises an electric telescopic rod (14) arranged on the closed end of the conical shell (4), and the telescopic end of the electric telescopic rod (14) is connected with the connecting disc (10).

5. The fixture according to claim 1, wherein: The elastic assembly comprises a hollow cylinder (15) arranged at the bottom of the arc-shaped clamping plate (7), a spring (16) is arranged in the hollow cylinder (15), a piston disc (17) is arranged at the bottom of the spring (16), a movable rod (18) is arranged at the bottom of the piston disc (17), the movable rod (18) penetrates out of the hollow cylinder (15) and is connected with the connecting disc (10).

6. The fixture of claim 1, wherein: An anti-skid surface is arranged on the arc-shaped clamping plate (7).

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