Novel cutter cup structure for CNC high-pressure cleaning

Abstract

The invention relates to the technical field of high-pressure cleaning cutter cup replacement, in particular to a novel cutter cup structure for CNC high-pressure cleaning, which comprises a stand and a CNC cutter: a cutter cup body is made of a metal material, the rear part of the cutter cup body is provided with a plurality of through holes which are connected with the stand, and the front part of the cutter cup body is provided with an arc-shaped notch which is profiled with the CNC cutter; the two supporting pieces are made of metal materials and are arranged on the left side and the right side of the cutter cup body respectively, first step structures are arranged on the front portions of the supporting pieces, and a plurality of through holes are formed in the rear portions of the supporting pieces; each spring clamp comprises a spring clamp chuck with the front portion bent towards the left side and the right side, a Y-shaped deformation groove is formed in the middle of each spring clamp chuck, the two spring clamps are installed at the first step structures of the two supporting pieces respectively, and through holes are formed in the rear portions of the spring clamps and connected with the supporting pieces. A spring clamp chuck, close to one side of the cutter cup body, of the spring clamp is bent to the inner side of the arc-shaped notch. The cutter cup has the advantage that the stability and the flexibility of clamping a cutter by the cutter cup are enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of high-pressure cleaning tool cup replacement, and specifically to a new tool cup structure for CNC high-pressure cleaning. Background Art

[0002] In the prior art, the tool clamping devices of some numerical control machining equipment (CNC) usually adopt integral plastic tool cups. Specifically, the tool cup produced by the injection molding process is a single plastic component, and its functionality depends on the inherent elastic deformation characteristics of the plastic material: during the tool replacement process, the tool cup generates radial contraction or expansion through a preset elastic deformation area to achieve rapid clamping and release of the tool. However, this technical solution has significant technical limitations: First, under the action of long-term alternating stress, the plastic material is prone to molecular chain breakage, creep, and stress relaxation phenomena, resulting in a progressive attenuation of the elastic modulus, and the clamping force will irreversibly decrease with the extension of the service cycle; Second, the photo-oxidative degradation and thermal aging effects of the material will accelerate the brittle transformation of the plastic, causing crack propagation or permanent plastic deformation in the key deformation parts of the tool cup; More prominently, since the tool cup and the tool are an integral non-detachable structure, when a local functional unit (such as a clamping jaw, a deformation guiding groove) fails, the entire clamping device must be replaced, which not only causes a large amount of waste of functional materials, but also significantly increases the material cost and downtime of equipment maintenance. Frequent replacement of spare parts under continuous production conditions has become a key bottleneck restricting the improvement of the operation efficiency of the processing system.

[0003] Therefore, there is a need to design a new tool cup structure for CNC high-pressure cleaning. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a new tool cup structure for CNC high-pressure cleaning, so as to increase the service life of the tool cup structure and reduce the maintenance cost of the tool cup structure.

[0005] To achieve the above object, a new tool cup structure for CNC high-pressure cleaning is designed, including a stand and a CNC tool. The CNC tool includes two annular bosses arranged up and down. A keyway is provided on the upper annular boss, and a gap is left between the upper and lower annular bosses. It further includes: a tool cup body, which is made of metal material, and several through holes are provided at the rear for connecting to the stand. An arc-shaped notch imitating the CNC tool is provided at the front of the tool cup body; two support members, both of which are made of metal material and are respectively arranged on the left and right sides of the tool cup body. A first step structure is provided at the front of the support member, and several through holes are provided at the rear of the support member for connecting to the stand; two spring clips, including: a spring clip head bent to the left and right sides at the front, and a Y-shaped deformation groove is provided in the middle of the spring clip head. The two spring clips are respectively installed at the first step structures of the two support members. A through hole is provided at the rear of the spring clip for connecting to the support member. The spring clip head on the side of the spring clip close to the tool cup body is bent to the inside of the arc-shaped notch.

[0006] Preferably, the present invention further includes: the lower side surface of the rear part of the spring clip cooperates with the lower tread surface of the first step structure, and the rear surface of the rear part of the spring clip cooperates with the kick surface of the first step structure.

[0007] Preferably, the present invention further includes: a limit convex block is provided on the outer side surface of the front end of the spring clip head.

[0008] Preferably, the present invention further includes: a second step structure is provided in the arc-shaped notch of the tool cup body.

[0009] Preferably, the present invention further includes: the height of the lower tread surface of the second step structure is aligned with the height of the lower tread surface of the first step structure.

[0010] Preferably, the present invention further includes: an anti-rotation member is provided in the middle of the arc-shaped notch. The anti-rotation member is connected to the lower tread surface of the second step structure by bolts, and the anti-rotation member forms a snap connection with the keyway on the CNC tool.

[0011] Preferably, the present invention further includes: the outer side surface of the spring clip head close to the tool cup body abuts against the outside of the tool cup body.

[0012] Preferably, the present invention further includes: a through groove for accommodating a sensor is further provided on the lower side surface of the tool cup body, and the sensor is used to detect the tool.

[0013] Compared with the prior art, the advantages of the present invention are as follows: Through the functional decoupling and split design of the tool cup, the elastic deformation unit and the rigid support unit are constructed into detachable modular components. Among them, the elastic deformation module uses plastic as the base material, and by designing a special-shaped claw structure with an elastic modulus, its elastic deformation performance and the clamping stability and flexibility of the tool are improved; the rigid bearing module selects aluminum alloy. This split structure enables the rigid module to effectively inhibit the lateral flexural deformation when the elastic deformation module bears the axial clamping force. Compared with the traditional integral structure, this structure improves the fatigue life of the clamping mechanism, and the separate replacement of the elastic module can reduce the maintenance cost. At the same time, the multi-degree-of-freedom adjustment interface between the modules allows the clamping force to be adjusted according to the difference in the tool diameter, realizing the dynamic matching and optimization of the clamping stiffness and the buffering characteristics. Description of the Drawings

[0014] Figure 1 Figures are schematic diagrams of the cooperation between the tool cup structure and the tool; Figure 2 Figures are schematic diagrams of the tool cup structure; Figure 3 Figures are schematic diagrams of the cooperation between the tool cup structure, the tool and the tool rest; Figure 4 Figures are top view schematic diagrams of the cooperation between the tool cup structure, the tool and the tool rest; Figure 5 Figures are bottom view schematic diagrams of the cooperation between the tool cup structure, the tool and the tool rest In the figures: 1 is the tool cup body, 1.1 is the second step structure, 2 is the support, 2.1 is the first step structure, 3 is the spring clip, 4 is the chuck, 5 is the limit projection, 6 is the through hole, 7 is the deformation groove, 8 is the anti-rotation part, 9 is the tool, 9.1 is the annular boss, 9.2 is the keyway, 10 is the through slot, 11 is the sensor, 12 is the tool rest. Detailed Embodiments

[0015] To make the purpose, principle and structure of the present invention clearer, the following further elaborates with reference to the drawings and specific embodiments.

[0016] See Figures 1-5 , to achieve stable clamping and rapid disassembly and assembly of the tool under the high-pressure cleaning working condition, this embodiment provides a new type of CNC tool cup structure, which includes: The tool rest 12 and the CNC tool 9, the tool rest 12 is a conventional tool cup bearing bracket, and the CNC tool 9 includes two annular bosses 9.1 arranged up and down. There is a keyway 9.2 on the upper annular boss 9.1, and there is a gap between the two annular bosses 9.1 up and down. Taking Figure 4 as an example, the direction close to the tool rest 12 is the rearward direction, and the direction close to the tool 9 is the forward direction. Taking Figure 4 the structure observed from the top view as the upper side, and taking Figure 5 the structure observed from the bottom view as the lower side.

[0017] The cutter cup body 1 is fixed to the gantry 12 at the rear and extends out of the gantry 12 and hangs in the air at the front. It is machined from hard aluminum alloy. An arc-shaped notch matching the contour of the shank of the standard CNC cutter 9 is provided at the front of the cutter cup body 1, and a second step structure 1.1 is machined on the inner wall of the notch. The clearance fit between the second step structure 1.1 of the cutter cup body 1 and the upper and lower annular bosses 9.1 of the cutter 9 is used to stably clamp the cutter 9.

[0018] Two support members 2 are symmetrically distributed on the left and right sides of the cutter cup body 1. The rear of the support member 2 is fixed to the gantry 12 and the front is suspended. The support member 2 is not fixedly connected to the cutter cup body 1. A first step structure 2.1 is provided at the front end of each support member 2, and the height of the lower tread surface of the first step structure 2.1 is flush with the height of the lower tread surface of the second step structure 1.1.

[0019] The spring clip 3 is integrally formed of plastic material. A spring clip chuck 4 is provided at the front. The front end of the chuck 4 is machined to form two bifurcated arms, and the bifurcated arms are bent outward to form symmetrical inclinations. Limiting bumps 5 are provided on the outer side surfaces of the ends of the front sides of the bifurcated arms. The lower side surface of the rear part of the spring clip 3 forms a surface contact constraint with the lower tread surface of the first step structure 2.1, and the side wall of the rear part of the spring clip 3 contacts the kick surface of the first step structure 2.1 to form an axial limiting fit.

[0020] Through holes 6 with coaxiality are machined on the support member 2 and the rear part of the spring clip 3, and the bolt is threadedly engaged with the through hole 6 to realize the fastening connection between the support member 2 and the spring clip 3.

[0021] Preferably, a Y-shaped deformation groove 7 is provided between the adjacent bifurcated arms of the middle part of the chuck 4. When the bifurcated arms of the bent structure of the chuck 4 are deformed by extrusion, the adjacent bifurcated arms of the bent structure of the chuck 4 can squeeze to eliminate the deformation groove 7 to realize the accumulation and release of elastic potential energy and prevent stress concentration.

[0022] Preferably, an anti-rotation member 8 is provided at the central position of the arc-shaped notch of the cutter cup body 1. The anti-rotation member is fixed to the middle part of the second step structure 1.1 by screws. The top convex part of the anti-rotation member forms an interference fit with the keyway 9.2 of the shank of the cutter 9 to bear the torque load. Since the anti-rotation member 8 is installed on the second step structure 1.1 and only the upper annular boss 9.1 of the cutter 9 is provided with the keyway 9.2, the anti-rotation member 8 can not only form a horizontal limit for the upper annular boss 9.1, but also form a vertical limit for the lower annular boss 9.2, truly realizing the function of preventing the cutter 9 from flipping.

[0023] In this embodiment, the spring clip 3 is made of plastic material with elastic deformation performance, and the cutter cup body 1 is made of aluminum alloy. The functional decoupling of elastic deformation and rigid support is realized through the differential design of material properties.

[0024] A through groove 10 for accommodating a sensor 11 is further provided on the lower side surface of the cutter cup body 1, and the sensor 11 is used to detect the position and presence of the cutter 9.

[0025] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and the new concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A new type of knife cup structure for CNC high-pressure cleaning, comprising a stand and a CNC tool, wherein the CNC tool comprises two annular bosses arranged up and down, a keyway is arranged on the upper annular boss, and a gap is left between the upper and lower annular bosses, characterized in that: Also includes: The knife cup body is made of metal material, with a plurality of through holes at the rear for connecting to the stand, and a circular arc-shaped notch at the front that imitates the shape of the CNC tool; Two support members, both of which are made of metal material and are respectively arranged on the left and right sides of the knife cup body, the front part of the support member is provided with a first step structure, and the rear part of the support member is provided with a plurality of through holes for connecting the stand; Two spring clips include: a spring clip chuck bent to the left and right sides at the front, a Y-shaped deformation groove opened in the middle of the spring clip chuck, the two spring clips are respectively installed at the first step structure of the two support members, a through hole is provided at the rear of the spring clip to connect with the support member, and the spring clip chuck on the side of the spring clip close to the knife cup body is bent to the inner side of the arc-shaped notch.

2. A new blade cup structure for CNC high pressure cleaning as claimed in claim 1, characterized in that: The lower side surface of the rear part of the spring clip cooperates with the lower tread surface of the first step structure, and the rear side surface of the rear part of the spring clip cooperates with the kick surface of the first step structure.

3. A new type of knife cup structure for CNC high pressure cleaning as claimed in claim 1, characterized in that: A limiting protrusion is provided on the outer side surface of the front end of the spring clamp chuck.

4. A new type of knife cup structure for CNC high pressure cleaning as claimed in claim 1, characterized in that: The arc-shaped notch of the knife cup body is provided with a second step structure.

5. A new type of knife cup structure for CNC high pressure cleaning as claimed in claim 4, characterized in that: The height of the lower tread of the second step structure is aligned with the height of the lower tread of the first step structure.

6. A new type of knife cup structure for CNC high pressure cleaning as claimed in claim 4, characterized in that: An anti-rotation piece is provided in the middle of the arc-shaped notch. The anti-rotation piece is connected to the lower tread of the second step structure by bolts. The anti-rotation piece is clamped with a keyway on the CNC tool.

7. A new type of blade cup structure for CNC high pressure cleaning as claimed in claim 1, characterized in that: The spring clip chuck is close to the outer side of the knife cup body and abuts against the outer side of the knife cup body.

8. A new type of blade cup structure for CNC high pressure cleaning as claimed in claim 1, characterized in that: A through slot for accommodating a sensor is also provided on the lower side of the knife cup body, and the sensor is used to detect the knife.

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