Sucker tool

Abstract

The utility model provides a suction cup tool which comprises a main body, the main body is provided with a mounting surface and a working surface which are opposite to each other, the direction of a connecting line from the edge of the main body to the center of the main body is the length direction of the suction cup tool, the mounting surface is provided with a through hole, the working surface is provided with a plurality of annular notches, and the through hole is communicated with the annular notches. The annular notches are distributed in the length direction of the suction cup tool at intervals, and the through holes are communicated with the annular notches respectively. According to the suction cup tool, a workpiece needing to be positioned is placed above the working face, the working face supports the workpiece, air in the annular notches is sucked through the through holes in the mounting face, adsorption positioning of the workpiece through the annular notches is achieved, and the adjusting pieces are operated in the length direction of the suction cup tool to open and close the different annular notches, so that the workpiece is positioned. And the annular notch capable of adsorbing the workpiece is opened, so that the suction cup tool can adapt to installation of workpieces of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of suction cup tooling, in particular to a suction cup tooling that can be used for ultra-precision machining on a single-point diamond lathe. Background Art

[0002] The ultra-precision machining technology of single-point diamond lathes is a fusion of multidisciplinary manufacturing technologies. Single-point diamond lathes utilize the high wear resistance, high hardness, and high-precision arc turning toughness of natural diamond tools, combined with the high displacement precision control of the machine tool, to process optical parts with ultra-high surface accuracy, surface roughness, and dimensional accuracy by means of rotary extrusion and micro-turning. Single-point diamond lathes can process common optical materials such as infrared crystals, non-ferrous metals, and plastics. It is a widely used aspheric optical component processing technology characterized by high production efficiency, high machining precision, good repeatability, and suitability for mass production.

[0003] When existing vacuum adsorption tooling is used to position workpieces, the specifications of the adsorption tooling are fixed, which makes it impossible to adapt the adsorption area to workpieces of different sizes. When workpieces of different sizes need to be positioned, the adsorption tooling needs to be replaced repeatedly, affecting work efficiency.

[0004] In order to solve the above problems, the utility model proposes a suction cup tooling which can adjust the area of ​​the adsorption region according to the size of the workpiece. Utility Model Content

[0005] In order to solve the problem that the existing vacuum adsorption tooling is unable to adaptively adjust the adsorption area according to workpieces of different sizes, the utility model provides a suction cup tooling.

[0006] According to one purpose of the present invention, the present invention provides a suction cup tool, comprising:

[0007] A main body, wherein the main body is provided with a mounting surface and a working surface facing each other, wherein the direction of the line connecting the edge of the main body to the center of the main body is the length direction of the suction cup fixture, the mounting surface is provided with a through hole, and the working surface is provided with a plurality of annular notches, wherein the annular notches are spaced apart along the length direction of the suction cup fixture, and the through hole is respectively connected to each of the annular notches;

[0008] An adjusting member is movably connected to the main body, and the adjusting member is configured to sequentially open and close the annular notch in the length direction of the suction cup tooling.

[0009] Preferably, the through hole comprises a secondary air inlet hole, which is arranged along the length direction of the chuck tool, and the secondary air inlet hole and the annular notch are sequentially communicated in the length direction of the chuck tool, the secondary air inlet hole penetrates at least one side of the main body in the length direction of the chuck tool, and the adjusting member is screwed in the interior of the secondary air inlet hole.

[0010] Preferably, the through hole further comprises a micro hole, the secondary air inlet hole and each annular notch are connected through the micro hole, the micro holes are sequentially and spacedly arranged along the length direction of the secondary air inlet hole, and the aperture of the micro hole is smaller than the aperture of the secondary air inlet hole.

[0011] Preferably, the through hole further comprises a primary air inlet hole, which is connected between the mounting surface and the secondary air inlet hole, and the aperture of the secondary air inlet hole is smaller than the aperture of the primary air inlet hole.

[0012] Preferably, the secondary air inlet hole penetrates both sides of the main body in the length direction of the chuck tool, and one adjusting member is respectively arranged in the interior of the secondary air inlet hole on both sides in the length direction of the chuck tool.

[0013] Each annular notch is respectively connected with one micro hole on both sides in the length direction of the chuck tool.

[0014] The number of the primary air inlet hole is one, and the primary air inlet hole is located at the center position in the length direction of the secondary air inlet hole.

[0015] Preferably, the working surface is an arc-shaped working surface, the center of the working surface coincides with the center of the annular notch, the adjacent annular notches are concentrically arranged, and the spacing of the adjacent annular notches is equal in the length direction of the chuck tool.

[0016] Preferably, the chuck tool further comprises:

[0017] A centering member, an opening is formed on one side of the working surface close to the edge, the bottom surface of the opening extends upward to form the centering member, the centering member and the side surface of the opening are spacedly arranged, the end surface of the centering member is higher than the working surface, and an end surface notch is formed on the end surface of the centering member, and the bottom surface of the end surface notch is lower than the working surface.

[0018] Preferably, the ratio of the cross-sectional dimension of the annular notch to the cross-sectional dimension of the inner side of the centering member is not less than 0.8.

[0019] Preferably, the main body comprises a mounting portion and an adsorption portion extending between the mounting surface and the working surface in sequence, the cross-sectional dimension of the mounting portion is not less than that of the adsorption portion in the length direction of the suction cup tool, the main air inlet hole is located in the mounting portion, the micro hole is located at the joint of the mounting portion and the adsorption portion, and the ring-shaped notch is located in the adsorption portion.

[0020] Preferably, a base recess is arranged at the center of the mounting surface, and the base recess is matched with the single-point vehicle surface suction cup.

[0021] Compared with the prior art, the utility model has the beneficial effects that:

[0022] The suction cup tool places the required positioning workpiece above the working surface, the working surface supports the workpiece, the air in the ring-shaped notch is sucked through the through hole on the mounting surface, the ring-shaped notch realizes adsorption positioning of the workpiece, the operation adjusting piece opens and closes different ring-shaped notches in the length direction of the suction cup tool, the ring-shaped notch capable of adsorbing the workpiece is opened, and the suction cup tool can adapt to the installation of workpieces of different sizes.

[0023] The utility model is further described below in combination with the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is a cross-sectional view of one perspective of the suction cup tool of the utility model;

[0025] Fig. 2 It is another perspective view of the suction cup tool of the utility model;

[0026] Fig. 3 It is a distribution diagram of the micro hole and the ring-shaped notch of the suction cup tool of the utility model.

[0027] In the drawings: 100, main body; 100a, mounting surface; 100b, working surface; 101, through hole; 1011, auxiliary air inlet hole; 1012, micro hole; 1013, main air inlet hole; 102, ring-shaped notch; 103, notch; 104, mounting portion; 105, adsorption portion; 106, base recess; 200, adjusting piece; 300, centering piece; 301, end face notch. DETAILED DESCRIPTION

[0028] The following description is used to explain the utility model in detail so that those skilled in the art can realize the utility model. The preferred embodiments in the following description are only used as examples, and other obvious variants can be thought of by those skilled in the art. The basic principles of the utility model defined in the following description can be applied to other implementation schemes, variant schemes, improved schemes, equivalent schemes and other technical schemes without departing from the spirit and scope of the utility model.

[0029] Referring to Figs. 1-3 The utility model provides a technical scheme: a sucking disc tool,

[0030] The main body 100 is provided with opposite installation surface 100a and working surface 100b, and the connecting line direction from the edge of the main body 100 to the center of the main body 100 is the length direction of the sucking disc tool, the through hole 101 is formed in the installation surface 100a, and a plurality of annular grooves 102 are formed in the working surface 100b, the annular grooves 102 are spaced apart along the length direction of the sucking disc tool, and the through hole 101 is communicated with each annular groove 102 respectively.

[0031] The adjusting part 200 is movably connected with the main body 100, and the adjusting part 200 is arranged to be suitable for opening and closing the annular grooves 102 in sequence in the length direction of the sucking disc tool.

[0032] The required positioning workpiece is placed above the working surface 100b, the working surface 100b supports the workpiece, the air in the annular groove 102 is sucked through the through hole 101 on the installation surface 100a, the annular groove 102 realizes the adsorption positioning of the workpiece, the adjusting part 200 is operated in the length direction of the sucking disc tool to open and close different annular grooves 102, so that the annular groove 102 capable of adsorbing the workpiece is opened, and the sucking disc tool can be adapted to the installation of workpieces of different sizes.

[0033] Preferably, the adjacent annular grooves 102 are concentrically arranged, and the spacing of the adjacent annular grooves 102 is equal in the length direction of the sucking disc tool, so that the force on each part of the workpiece is uniform when the workpiece is adsorbed by the annular groove 102.

[0034] With the development of modern optical technology, under the promotion of space optical technology and civil field, aspherical optical elements, especially thin-walled meniscus aspherical optical elements, are widely applied to various fields. In the single-point diamond turning process of thin-walled meniscus optical elements, various optical indicators need to be met, such as size accuracy, surface shape accuracy and surface roughness. The single-point turning tool generally has an elastic tool, a vacuum adsorption tool and a colloid bonding tool. The clamping force of the elastic tool cannot be quantified, which easily leads to workpiece deformation. The adsorption tool needs to spend more time to correct the parts, and the efficiency is relatively low, so it is not suitable for batch production. The bonding tool is relatively complicated, and the parts are easy to break. Especially when machining thin-walled meniscus parts, the existing tool is more likely to have problems such as unstable adsorption, easy deformation, high damage rate and low efficiency, which affects the machining precision and quality, and thus affects the imaging effect.

[0035] In one of the embodiments of the utility model, the suction cup tool is used for the adsorption positioning of the arc-shaped optical part, at this time, the working surface 100b is arc-shaped, the center of the working surface 100b and the center of the ring-shaped notch 102 coincide, the cross-sectional shape of the ring-shaped notch 102 is circular, wherein the working surface 100b and the optical part contact surface are approximately or the same curvature. When used, the working surface 100b and the part contact surface have the same curvature, approximately ideal contact, self-centering, high adaptability, no stress, and no deformation.

[0036] The through hole 101 includes a secondary air inlet hole 1011, the secondary air inlet hole 1011 is arranged along the length direction of the suction cup tool, the secondary air inlet hole 1011 and the ring-shaped notch 102 are sequentially communicated in the length direction of the suction cup tool, the secondary air inlet hole 1011 penetrates at least one side of the main body 100 in the length direction of the suction cup tool, the adjusting part 200 is a rod-shaped adjusting part 200, the adjusting part 200 is screwed in the inside of the secondary air inlet hole 1011, wherein the length of the adjusting part 200 is not less than the maximum distance between the ring-shaped notches 102. Optionally, the adjusting part 200 is an internal hexagonal bolt, and the secondary air inlet hole 1011 is an M6 screw hole, which is used to adjust the size of the part adsorption area, so as to realize the adjustment of the part adsorption force.

[0037] The internal hexagonal stud is connected with the main body 100 through the secondary air inlet hole 1011, the knob adjusting part 200 is rotated clockwise into the secondary air inlet hole 1011, the adjusting part 200 is moved in the length direction of the suction cup tool, the adjusting part 200 shields the connection between the secondary air inlet hole 1011 and the ring-shaped notch 102, the closing of part of the ring-shaped notch 102 is realized, and the area of the region capable of adsorbing the workpiece of the ring-shaped notch 102 gradually decreases, wherein the depth size of the adjusting part 200 rotated in can be measured by using a caliper to calculate the negative pressure area above the working surface 100b, or marks are added in the length direction of the adjusting part 200, and it should be noted that when the area of the part adsorbed by the part accounts for about 0.6 of the full diameter of the part, the machining effect is better.

[0038] The through hole 101 also includes a micro hole 1012, the secondary air inlet hole 1011 and each ring-shaped notch 102 are connected through the micro hole 1012, the micro holes 1012 are sequentially and spacedly arranged along the length direction of the secondary air inlet hole 1011, and the aperture of the micro hole 1012 is smaller than the aperture of the secondary air inlet hole 1011.

[0039] The through hole 101 also includes a main air inlet hole 1013, the main air inlet hole 1013 is connected between the mounting surface 100a and the secondary air inlet hole 1011, and the aperture of the secondary air inlet hole 1011 is smaller than the aperture of the main air inlet hole 1013.

[0040] The main air inlet hole 1013 and the auxiliary air inlet hole 1011 and the micropore 1012 are sequentially communicated, and a pore size difference exists between the main air inlet hole 1013 and the auxiliary air inlet hole 1011 and the micropore 1012, so that a pressure difference is formed, the main air inlet hole 1013 accesses a larger vacuum adsorption force, firm adsorption of the tool is realized, the overall mass center of the tool is stable during high-speed machining, the disturbance is small, and the upper part of the working surface 100b is a smaller vacuum adsorption force, and the equidistant ring-shaped notch 102 is arranged, so that the stress area of the part is further equidistantly reduced, the part is uniformly stressed, deformation of the part is prevented, stress deformation and low-frequency vibration are reduced or eliminated.

[0041] In one of the embodiments of the utility model, the auxiliary air inlet hole 1011 penetrates through both sides of the main body 100 in the length direction of the suction cup tool, the number of the adjusting piece 200 is two, and one adjusting piece 200 is respectively arranged in the auxiliary air inlet hole 1011 on both sides of the suction cup tool in the length direction.

[0042] Each ring-shaped notch 102 is respectively connected with one micropore 1012 on both sides in the length direction of the suction cup tool.

[0043] The number of the main air inlet hole 1013 is one, and the main air inlet hole 1013 is located at the center position in the length direction of the auxiliary air inlet hole 1011.

[0044] The main air inlet hole 1013 is a circular hole with a diameter of 8 mm, the micropore 1012 is a circular hole with a diameter of 0.5 mm, and the micropores 1012 are uniformly distributed on a straight line to form a small hole array.

[0045] The suction cup tool further comprises:

[0046] The edge of the working surface 100b extends upwards to form the ring-shaped centering piece 300, in use, the inner wall of the centering piece 300 cooperates with the part outer edge tolerance of + / - 0.01 mm, the optical part is placed flat on the inner side of the centering piece 300, and the part is quickly positioned through the centering piece 300 and the arc-shaped working surface 100b.

[0047] The working surface 100b is provided with the notch 103 on one side close to the edge, the bottom surface of the notch 103 extends upwards to form the centering piece 300, the centering piece 300 and the side surface of the notch 103 are arranged at intervals, the bottom surface of the notch 103 is flush with the bottom surface of the ring-shaped notch 102, the side surface of the notch 103 is parallel to the side surface of the ring-shaped notch 102, the end surface of the centering piece 300 is higher than the working surface 100b, the end surface of the centering piece 300 is provided with the end surface notch 301, and the bottom surface of the end surface notch 301 is lower than the working surface 100b.

[0048] Further, the number of the end face notches 301 is multiple, and the end face notches 301 are distributed along the length direction of the centering piece 300.

[0049] When the part is smoothly installed inside the centering piece 300, the end face notches 301 on the centering piece 300 release the extrusion stress generated by the contact between the inside of the centering piece 300 and the outer edge of the part, so that the centering piece 300 is better wrapped around the outer periphery of the part. When the part is disassembled, a toothpick can be inserted into the end face notch 301 to pick out the part, or a compressed air gun can be used to inject compressed gas between the part and the working surface 100b through the end face notch 301 to achieve the purpose of disassembling the part. In addition, the end face notches 301 can also timely discharge cutting fluid and residual chips to prevent contamination of the surface of the part.

[0050] In the length direction of the chuck tool, the ratio of the cross-sectional size of the ring-shaped notch 102 to the inside cross-sectional size of the centering piece 300 is not less than 0.8. Preferably, the ratio of the cross-sectional size of the ring-shaped notch 102 to the inside cross-sectional size of the centering piece 300 is 0.8.

[0051] The main body 100 includes a mounting portion 104 and an adsorption portion 105 extending between the mounting surface 100a and the working surface 100b in sequence. In the length direction of the chuck tool, the cross-sectional size of the mounting portion 104 is not less than the cross-sectional size of the adsorption portion 105. The main air inlet hole 1013 is located in the mounting portion 104, the micro hole 1012 is located at the connection between the mounting portion 104 and the adsorption portion 105, and the ring-shaped notch 102 is located in the adsorption portion 105. In an embodiment of the utility model, the main body 100 is an aluminum alloy main body 100 in T shape, and the adsorption portion 105 and the mounting portion 104 are both in cylindrical shape.

[0052] A base recess 106 with a diameter of 60 mm and a depth of 1 mm is formed in the center of the mounting surface 100a, so that the chuck tool can be adsorbed on a single-point lathe chuck by vacuum adsorption force, and the chuck tool is coaxial with the lathe spindle by aligning the cylinder.

[0053] The chuck tool has the following advantages:

[0054] 1. The part can be quickly positioned according to the outer edge, the working surface 100b of the clamp arc is in contact with the part surface with the same curvature, the contact is approximately ideal, the adaptability is high, the part is uniformly stressed, there is no stress deformation, and the surface has no low-frequency vibration.

[0055] 2. The surface quality is good, there is no rainbow pattern, the repeated positioning is high, the surface shape precision is good, the dynamic balance is good, the tool wear is reduced, and the service life of the tool is significantly increased.

[0056] 3. The whole structure has less components, simple structure, easy processing and good consistency, T-shaped structure, reasonable mass center distribution, small air flow disturbance, small and stable dynamic balance, high-speed micro cutting, and approximate nanometer processing.

[0057] The above-described embodiments are only used for illustrating the technical ideas and characteristics of the utility model, and the purpose is to enable the technicians in the art to understand the content of the utility model and implement it, and the patent application range of the utility model cannot be limited by the embodiments, that is, any equivalent changes or modifications made according to the disclosed spirit of the utility model still fall within the patent range of the utility model.

Claims

1. A suction cup tool characterized by, The utility model relates to a kind of suction disc tooling, including: Main body (100), the opposite installation surface (100a) and working surface (100b) are provided on the main body (100), the direction of the line to the center of the main body (100) is the length direction of the suction disc tooling, the through hole (101) is opened in the installation surface (100a), a plurality of ring type notches (102) are opened in the working surface (100b), the ring type notch (102) is spaced distribution along the length direction of the suction disc tooling, the through hole (101) is connected with each described ring type notch (102) respectively and communicated; Adjusting part (200), the adjusting part (200) and the main body (100) are movably connected, the adjusting part (200) is set to be adapted to open and close the ring type notch (102) in the length direction of the suction disc tooling in turn.

2. A chuck as claimed in claim 1, wherein The through hole (101) includes auxiliary air inlet hole (1011), the auxiliary air inlet hole (1011) is arranged along the length direction of the suction disc tooling, in the length direction of the suction disc tooling, the auxiliary air inlet hole (1011) and the ring type notch (102) are communicated in turn, the auxiliary air inlet hole (1011) penetrates at least one side of the main body (100) in the length direction of suction disc tooling, and the adjusting part (200) is screwed in the inside of the auxiliary air inlet hole (1011).

3. A chuck as claimed in claim 2, wherein The through hole (101) further includes micropore (1012), the auxiliary air inlet hole (1011) and each described ring type notch (102) are connected by the micropore (1012), the micropore (1012) is arranged in turn along the length direction of the auxiliary air inlet hole (1011) and is spaced, and the aperture of the micropore (1012) is less than the aperture of the auxiliary air inlet hole (1011).

4. A chuck as claimed in claim 3, wherein The through hole (101) further includes main air inlet hole (1013), the main air inlet hole (1013) is connected between the installation surface (100a) and the auxiliary air inlet hole (1011), and the aperture of the auxiliary air inlet hole (1011) is less than the aperture of the main air inlet hole (1013).

5. A chuck as claimed in claim 4, wherein The auxiliary air inlet hole (1011) penetrates both sides of the main body (100) in the length direction of suction disc tooling, and the adjusting part (200) is respectively mounted in the inside of the auxiliary air inlet hole (1011) on both sides of the length direction of the suction disc tooling; Each described ring type notch (102) is connected with one micropore (1012) on both sides in the length direction of suction disc tooling respectively; The number of the main air inlet hole (1013) is one, and the main air inlet hole (1013) is located at the center position in the length direction of the auxiliary air inlet hole (1011).

6. A chuck as claimed in claim 1, wherein The working surface (100b) is arc-shaped working surface (100b), the center of the working surface (100b) and the center of the ring type notch (102) coincide, adjacent ring type notch (102) is concentrically arranged, and the pitch of adjacent ring type notch (102) is equal in the length direction of the suction disc tooling.

7. A chuck as claimed in claim 1, wherein Further including: The working surface (100b) is provided with an opening (103) near the edge, the bottom of the opening (103) extends upward to form a centering piece (300), the centering piece (300) and the side of the opening (103) are arranged in a spaced manner, the end surface of the centering piece (300) is higher than the working surface (100b), the end surface of the centering piece (300) is provided with an end surface notch (301), and the bottom of the end surface notch (301) is lower than the working surface (100b).

8. A chuck as claimed in claim 7, wherein The ratio of the cross-sectional size of the ring-shaped notch (102) to the cross-sectional size of the inside of the centering piece (300) is not less than 0.

8.

9. A chuck as claimed in claim 4, wherein The main body (100) comprises a mounting portion (104) and an adsorption portion (105) extending between the mounting surface (100a) and the working surface (100b) in sequence, in the length direction of the suction cup tool, the cross-sectional size of the mounting portion (104) is not less than the cross-sectional size of the adsorption portion (105), wherein the main air inlet hole (1013) is located in the mounting portion (104), the micropore (1012) is located at the connection between the mounting portion (104) and the adsorption portion (105), and the ring-shaped notch (102) is located in the adsorption portion (105).

10. A chuck as claimed in claim 1, wherein The center of the mounting surface (100a) is provided with a base recess (106), and the base recess (106) is matched with a single-point vehicle surface suction cup.

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