CN210388423U - Vacuum chuck type clamp with automatic centering function - Google Patents

Vacuum chuck type clamp with automatic centering function Download PDF

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Publication number
CN210388423U
CN210388423U CN201921267961.3U CN201921267961U CN210388423U CN 210388423 U CN210388423 U CN 210388423U CN 201921267961 U CN201921267961 U CN 201921267961U CN 210388423 U CN210388423 U CN 210388423U
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Prior art keywords
vacuum chuck
vacuum
automatic centering
chuck
jaw
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CN201921267961.3U
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Chinese (zh)
Inventor
李晓亮
刘驰
林海鹏
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Shenyang Aircraft Industry Group Co Ltd
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Shenyang Aircraft Industry Group Co Ltd
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Abstract

The utility model provides a vacuum chuck formula anchor clamps with automatic centering function, wherein, vacuum chuck formula anchor clamps with automatic centering function have solid of revolution part structure characteristics, on vacuum chuck anchor clamps's basis, the design has increased automatic centering and has pressed from both sides tight structure. The three-jaw chuck is used for realizing automatic centering and eliminating the degree of freedom; the vacuum chuck is utilized to realize effective and stable clamping of the part. The utility model provides a vacuum chuck formula anchor clamps with self-centering function is applicable to numerical control processing and conventional processing, realizes quick centering, location and the stable centre gripping of part clamping, simple structure, easy operation is easy to get one's hand, and is with low costs, and the operation is convenient, and the maintenance is simple, and the commonality is good.

Description

Vacuum chuck type clamp with automatic centering function
Technical Field
The utility model belongs to the technical field of machining, concretely relates to vacuum chuck formula anchor clamps with automatic centering function.
Background
In the field of machining, a large number of disc-shaped cavity parts such as thin walls and thin plates are provided, after the outer circle of each part is finely ground, a milling tool is used for clamping and positioning, and a special tool is usually used for clamping and positioning, so that the manufacturing cost is greatly increased in the whole machining process. In addition, when parts such as thin walls or thin plates are encountered, the clamping process needs to be operated by experienced workers, and in the clamping process, secondary clamping needs to be frequently carried out, so that the clamping deformation or the poor clamping of the parts are easily caused, and the qualified rate of part processing is influenced. Meanwhile, when a machining program track is programmed, attention needs to be paid to avoidance of a cutter path to the position of the pressing plate all the time, so that a plurality of programming difficulties are brought invisibly, and the risk of collision between the cutter and the pressing plate is increased.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a vacuum chuck type clamp with automatic centering function.
The technical scheme of the utility model is that:
the utility model discloses a vacuum chuck formula anchor clamps with automatic centering function has solid of revolution part structure characteristics, on vacuum chuck anchor clamps's basis, and the design has increased automatic centering and has pressed from both sides tight structure. The three-jaw chuck is used for realizing automatic centering and eliminating the degree of freedom; the vacuum chuck is utilized to realize effective and stable clamping of the part.
Specifically, the vacuum chuck type clamp with the automatic centering function provided by the utility model comprises an automatic centering device 1 and a vacuum chuck 2, wherein the vacuum chuck 2 is arranged above the automatic centering device 1; the automatic centering device 1 comprises a jaw 3, a jaw adjusting screw 6, a sucker connecting piece 8 and a stepped hole 11; the step hole 11 is arranged in the center of the bottom of the automatic centering device 1, the sucker connecting piece 8 with a threaded hole is fixed in the step hole 11, the three clamping jaws 3 are uniformly arranged at the top of the automatic centering device 1, and the jaw adjusting screws 6 are used for simultaneously adjusting the contraction and the expansion of the three clamping jaws 3 so as to position a part 13 to be processed; the vacuum chuck 2 comprises a clamp vacuum interface 4, an exhaust hole 5, a sealing rubber ring 7, a chuck connecting screw 9, a chuck vacuum channel 10 and a jaw moving groove 12; the exhaust hole 5 is formed in the center of the top of the vacuum chuck 2, the chuck vacuum channel 10 is formed in the vacuum chuck 2 along the radial direction of the vacuum chuck 2 so as to communicate the exhaust hole 5 with the clamp vacuum interface 4 formed on the side wall of the vacuum chuck 2, the chuck connecting screw 9 is arranged in the center of the bottom of the vacuum chuck 2, penetrates through the bottom plate of the vacuum chuck 2 and is matched with a threaded hole of the chuck connecting piece 8, the vacuum chuck 2 is connected with the automatic centering device 1, and the vacuum chuck 2 is provided with a jaw moving groove 12 for accommodating the jaw 3; the upper surface of the vacuum chuck 2 is provided with a sealing rubber ring 7 for sealing and maintaining the pressure between the part 13 to be processed and the vacuum chuck 2.
On the other hand, the utility model provides a method for use foretell vacuum chuck formula anchor clamps with self-centering function to carry out part clamping, the method include following step:
1) the sucker connecting piece 8 is arranged in a step hole 11 at the bottom of the automatic centering device 1;
2) placing the vacuum chuck 2 on the automatic centering device 1, and aligning the jaw moving groove 12 with the jaw 3;
3) screwing a jack catch adjusting screw 6, moving the jack catch 3, and checking whether the jack catch 3 can normally move in the jack catch moving groove 12;
4) after the rubber sealing gasket is installed on the sucker connecting screw 9, the sucker connecting screw is inserted into the exhaust hole 5 of the vacuum sucker 2 and screwed into the threaded hole on the sucker connecting piece 8;
5) clamping the vacuum chuck type clamp with the automatic centering function connected in the step 4 on a machine tool workbench by using bolts and a pressing plate;
6) installing a sealing rubber ring 7 in a sealing rubber ring installation groove on the upper surface of the vacuum chuck 2;
7) one end of a vacuum pipeline is firmly connected with the clamp vacuum interface 4, and the other end of the pipeline is connected with a vacuum pump valve terminal;
8) opening a vacuum pump valve, and checking whether an air exhaust effect exists at an air exhaust port 5 on the vacuum sucker 2;
9) screwing the jaw adjusting screw 6 by using a spanner, and opening the jaw 3 to the maximum;
10) placing the part 13 to be machined between the three jaws 3;
11) screwing the jaw adjusting screw 6, and retracting the jaw 3 until the part 13 to be processed is slightly clamped;
12) opening a vacuum pump valve, and exhausting air from the exhaust hole 5 to realize a vacuum state between the part 13 to be processed and the vacuum chuck 2;
13) screwing the jaw adjusting screw 6, retracting the jaw 3 and clamping the part to be processed 13;
14) using a dial indicator or an edge finder to align the central coordinates of the part 13 to be processed, and placing and storing the part in the numerical control system;
15) the processing of the part to be processed 13 is started.
The utility model discloses an effect and benefit are:
the utility model provides a vacuum chuck formula anchor clamps with self-centering function is applicable to numerical control processing and conventional processing, realizes quick centering, location and the stable centre gripping of part clamping, simple structure, easy operation is easy to get one's hand, and is with low costs, and the operation is convenient, and the maintenance is simple, and the commonality is good.
Drawings
Fig. 1A to fig. 1C are schematic structural views of a vacuum chuck type clamp with an automatic centering function provided in an embodiment of the present invention; wherein FIG. 1A is a side view, FIG. 1B is a top view, and FIG. 1C is a cross-sectional view taken along A-A of FIG. 1B.
Fig. 2A and 2B are schematic diagrams of a part clamped by using the vacuum chuck type clamp with self-centering function provided in the embodiment of the present invention; fig. 2A is a side view, and fig. 2B is a top view.
In the figure: 1, an automatic centering device; 2, vacuum chuck; 3, clamping jaws; 4, a clamp vacuum interface; 5, exhausting holes; 6, adjusting a screw by a jaw; 7, sealing a rubber ring; 8, a sucker connecting piece; 9, connecting a screw with a sucker; 10 a suction cup vacuum channel; 11 a stepped hole; 12 jaw moving grooves; 13 parts to be machined.
Detailed Description
The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.
It is to be understood that the appended drawings are not to scale, but are merely drawn with appropriate simplifications to illustrate various features of the basic principles of the invention. Specific design features of the invention disclosed herein, including, for example, specific dimensions, orientations, locations, and configurations, will be determined in part by the particular intended application and environment of use.
In the several figures of the drawings, identical or equivalent components (elements) are referenced with the same reference numerals.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Fig. 1A to fig. 1C are schematic structural views of a vacuum chuck type clamp with an automatic centering function provided in an embodiment of the present invention; wherein FIG. 1A is a side view, FIG. 1B is a top view, and FIG. 1C is a cross-sectional view taken along A-A of FIG. 1B. Referring to fig. 1A to 1C, in the present embodiment, a vacuum chuck type jig having a self-centering function includes a self-centering device 1 and a vacuum chuck 2, and the vacuum chuck 2 is disposed above the self-centering device 1.
The automatic centering device 1 comprises a jaw 3, a jaw adjusting screw 6, a sucker connecting piece 8 and a step hole 11; the step hole 11 is arranged in the center of the bottom of the automatic centering device 1, the sucker connecting piece 8 with a threaded hole is fixed in the step hole 11, the three clamping jaws 3 are uniformly arranged at the top of the automatic centering device 1, and the jaw adjusting screws 6 are used for simultaneously adjusting the contraction and the expansion of the three clamping jaws 3 so as to position the part 13 to be processed.
The automatic centering device 1 has the main functions of enabling the three clamping jaws 3 to contract and move simultaneously by screwing the clamping jaw adjusting screws 6, centering the part 13 to be machined and applying lateral clamping force.
The vacuum chuck 2 comprises a clamp vacuum interface 4, an exhaust hole 5, a sealing rubber ring 7, a chuck connecting screw 9, a chuck vacuum channel 10 and a jaw moving groove 12. Exhaust hole 5 is seted up in 2 top centers of vacuum chuck, sucking disc vacuum channel 10 is seted up in vacuum chuck 2 along vacuum chuck 2 radial, with exhaust hole 5 with set up the 4 intercommunications of anchor clamps vacuum interface on vacuum chuck 2's lateral wall, sucking disc connecting screw 9 sets up in vacuum chuck 2's bottom central authorities, run through vacuum chuck 2's bottom plate and with the screw hole cooperation of sucking disc connecting piece 8, be connected vacuum chuck 2 with automatic centering device 1, vacuum chuck 2 sets up the jack catch shifting chute 12 that is used for holding jack catch 3. The upper surface of the vacuum chuck 2 is provided with a sealing rubber ring 7 for sealing and maintaining the pressure between the part 13 to be processed and the vacuum chuck 2.
The vacuum chuck 2 and the automatic centering device 1 are fastened and connected by a chuck connecting piece 8 with a threaded hole and a chuck connecting screw 9. The vacuum chuck 2 is mainly used for forming a vacuum environment between the part 13 to be machined and the upper positioning surface of the vacuum chuck 2 under the action of vacuum negative pressure and sealing pressure maintaining of the sealing rubber ring 7, adsorbing the part 13 to be machined on the chuck, providing vertical downward suction force for the part 13 to be machined, and ensuring that the part 13 to be machined is accurately positioned and clamped. The air between the part 13 to be processed and the upper positioning surface of the vacuum chuck 2 is pumped out under the action of a vacuum pump station through the exhaust hole 5, the chuck vacuum channel 10, the clamp vacuum interface 4 and the vacuum pipeline which are communicated with each other. The vacuum chuck 2 is also provided with a jaw moving groove 12 for facilitating the opening and contraction of the jaw 3 and preventing the vacuum chuck 2 from influencing the movement of the jaw 3 after being installed.
The method for clamping the part by adopting the vacuum chuck type clamp with the automatic centering function in the embodiment comprises the following steps:
1. the sucker connecting piece 8 is arranged in a step hole 11 at the bottom of the automatic centering device 1;
2. placing the vacuum chuck 2 on the automatic centering device 1, and aligning the jaw moving groove 12 with the jaw 3;
3. screwing a jaw adjusting screw 6, moving the jaw 3, checking whether the jaw 3 can normally move in the jaw moving groove 12, and confirming that no obstruction or interference exists;
4. after the rubber sealing gasket is installed on the sucker connecting screw 9, the sucker connecting screw is inserted from the exhaust hole 5 of the vacuum sucker 2, screwed into the threaded hole on the sucker connecting piece 8 and screwed down by using a spanner;
5. clamping the connected vacuum chuck type clamp with the automatic centering function on a machine tool workbench by using bolts, pressing plates and the like;
6. installing a sealing rubber ring 7 in a sealing rubber ring installation groove on the upper surface of the vacuum chuck 2;
7. one end of the vacuum pipeline is firmly connected with the clamp vacuum interface 4; the other end of the pipeline is connected with a vacuum pump valve terminal;
8. opening a vacuum pump valve, checking whether the exhaust effect exists at the exhaust port 5 on the vacuum sucker 2, and closing the vacuum pump valve after confirming that no error exists;
9. screwing the jaw adjusting screw 6 by using a spanner, and opening the jaw 3 to the maximum;
10. placing the part to be machined 13 between the three jaws 3, as shown in fig. 2A and 2B;
11. screwing the jaw adjusting screw 6 by using a spanner, and retracting the jaw 3 until the part 13 to be machined is slightly clamped;
12. opening a vacuum pump valve, and exhausting air from the exhaust hole 5 to realize a vacuum state between the part 13 to be processed and the vacuum chuck 2;
13. screwing the jaw adjusting screw 6 by using a spanner, retracting the jaw 3, and clamping the part 13 to be processed;
14. using a dial indicator or an edge finder and the like to align the central coordinates of the part 13 to be processed, and placing and storing the central coordinates in a numerical control system;
15. the processing of the part to be processed 13 is started.
The above description of exemplary embodiments has been presented only to illustrate the technical solutions of the present invention, and is not intended to be exhaustive or to limit the present invention to the precise forms described. Obviously, many modifications and variations are possible in light of the above teaching to those skilled in the art. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to thereby enable others skilled in the art to understand, implement and utilize the invention in various exemplary embodiments and with various alternatives and modifications. It is intended that the scope of the invention be defined by the following claims and their equivalents.

Claims (1)

1. A vacuum chuck type clamp with an automatic centering function is characterized in that the vacuum chuck type clamp with the automatic centering function comprises an automatic centering device (1) and a vacuum chuck (2), wherein the vacuum chuck (2) is arranged above the automatic centering device (1); wherein the content of the first and second substances,
the automatic centering device (1) comprises a jaw (3), a jaw adjusting screw (6), a sucker connecting piece (8) and a stepped hole (11); the step hole (11) is arranged in the center of the bottom of the automatic centering device (1), a sucker connecting piece (8) with a threaded hole is fixed in the step hole (11), the three clamping jaws (3) are uniformly arranged at the top of the automatic centering device (1), and the contraction and the expansion of the three clamping jaws (3) are simultaneously adjusted through the clamping jaw adjusting screws (6) so as to position a part (13) to be processed;
the vacuum sucker (2) comprises a clamp vacuum interface (4), an exhaust hole (5), a sealing rubber ring (7), a sucker connecting screw (9), a sucker vacuum channel (10) and a claw moving groove (12); the exhaust hole (5) is formed in the center of the top of the vacuum chuck (2), the chuck vacuum channel (10) is formed in the vacuum chuck (2) along the radial direction of the vacuum chuck (2) to communicate the exhaust hole (5) with a clamp vacuum interface (4) arranged on the side wall of the vacuum chuck (2), a chuck connecting screw (9) is arranged in the center of the bottom of the vacuum chuck (2), penetrates through the bottom plate of the vacuum chuck (2) and is matched with a threaded hole of a chuck connecting piece (8), the vacuum chuck (2) is connected with the automatic centering device (1), and the vacuum chuck (2) is provided with a jaw moving groove (12) for accommodating a jaw (3); and a sealing rubber ring (7) is arranged on the upper surface of the vacuum sucker (2) and used for sealing and maintaining the pressure between the part (13) to be processed and the vacuum sucker (2).
CN201921267961.3U 2019-08-07 2019-08-07 Vacuum chuck type clamp with automatic centering function Active CN210388423U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921267961.3U CN210388423U (en) 2019-08-07 2019-08-07 Vacuum chuck type clamp with automatic centering function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921267961.3U CN210388423U (en) 2019-08-07 2019-08-07 Vacuum chuck type clamp with automatic centering function

Publications (1)

Publication Number Publication Date
CN210388423U true CN210388423U (en) 2020-04-24

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CN201921267961.3U Active CN210388423U (en) 2019-08-07 2019-08-07 Vacuum chuck type clamp with automatic centering function

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110370052A (en) * 2019-08-07 2019-10-25 沈阳飞机工业(集团)有限公司 A kind of vacuum cap type fixture and its clamping method with self-centering function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110370052A (en) * 2019-08-07 2019-10-25 沈阳飞机工业(集团)有限公司 A kind of vacuum cap type fixture and its clamping method with self-centering function

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