CN111168447A - Full-automatic pneumatic machining clamp for workpiece holes - Google Patents

Full-automatic pneumatic machining clamp for workpiece holes Download PDF

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Publication number
CN111168447A
CN111168447A CN202010101594.0A CN202010101594A CN111168447A CN 111168447 A CN111168447 A CN 111168447A CN 202010101594 A CN202010101594 A CN 202010101594A CN 111168447 A CN111168447 A CN 111168447A
Authority
CN
China
Prior art keywords
positioning
hole
side plate
cylinder
workpiece
Prior art date
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Granted
Application number
CN202010101594.0A
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Chinese (zh)
Other versions
CN111168447B (en
Inventor
罗彬宾
王二化
颜鹏
嵇明军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changzhou Xiaoyang Auto Parts Co ltd
Original Assignee
Changzhou College of Information Technology CCIT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Priority to CN202010101594.0A priority Critical patent/CN111168447B/en
Publication of CN111168447A publication Critical patent/CN111168447A/en
Application granted granted Critical
Publication of CN111168447B publication Critical patent/CN111168447B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • B23Q3/062Work-clamping means adapted for holding workpieces having a special form or being made from a special material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • B23Q3/08Work-clamping means other than mechanically-actuated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2703/00Work clamping
    • B23Q2703/02Work clamping means
    • B23Q2703/04Work clamping means using fluid means or a vacuum

Abstract

The invention discloses a full-automatic pneumatic machining clamp for a workpiece hole, which comprises a clamp body, a positioning side plate, a third air cylinder and a first air cylinder, wherein the positioning side plate is perpendicular to the clamp body; a space capable of accommodating a workpiece is enclosed among the positioning side, the third cylinder and the first cylinder; the telescopic directions of the first cylinder and the third cylinder are on the same plane and are mutually vertical; the first cylinder is arranged towards the positioning side plate and can extend out towards the direction of the positioning side plate; the upper part of the positioning side plate is provided with a clamping hole which can accommodate the positioning column to pass through; the positioning column can be matched with a positioning hole on the workpiece; a second air cylinder with a movable position is arranged on the top surface of a positioning piece in front of a telescopic rod of the third air cylinder, and the second air cylinder can be stretched in the vertical direction; and an air suction hole is formed in the positioning surface of the positioning piece of the third cylinder, which faces the workpiece. The full-automatic pneumatic machining clamp for the workpiece hole can be used for machining and positioning the mutually vertical holes on two different planes and can also realize full-automatic clamping.

Description

Full-automatic pneumatic machining clamp for workpiece holes
Technical Field
The invention relates to a clamp, and belongs to the technical field of machinery.
Background
The non-standard workpiece with the shape shown in fig. 1, 2 and 3 requires the body hole 102 and the base hole 104 to be processed on two different planes perpendicular to each other (all other planes and holes are processed). In order to improve the machining precision, according to the criterion selection principle, the hole 101 is used as a positioning criterion, and one end surface D and the bottom surface B of the positioning hole 101 are used as the positioning criterion.
However, since the main body hole 102 and the base hole 104 to be machined are not on the same plane, on the premise of the same positioning reference scheme, if the base hole 104 is machined from top to bottom directly, the machining tool interferes with the surface of the workpiece where the base hole 104 is located, and therefore machining cannot be performed, and therefore, the bottom surface B can only be turned upwards. Therefore, a full-automatic clamp needs to be designed, so that the positioning of the holes which are perpendicular to each other on two different planes can be met, and the requirement of full-automatic clamping can be met.
Disclosure of Invention
The invention aims to solve the technical problem of providing a full-automatic pneumatic machining clamp for workpiece holes, which can be used for machining and positioning the mutually vertical holes on two different planes and can realize full-automatic clamping.
In order to solve the technical problems, the invention adopts the following technical scheme:
a full-automatic pneumatic machining clamp for a workpiece hole comprises a clamp body, a positioning side plate, a third air cylinder and a first air cylinder, wherein the positioning side plate is perpendicular to the clamp body; a space capable of accommodating a workpiece is enclosed among the positioning side, the third cylinder and the first cylinder;
the telescopic directions of the first cylinder and the third cylinder are on the same plane and are mutually vertical; the first cylinder is arranged towards the positioning side plate and can extend out towards the direction of the positioning side plate;
the upper part of the positioning side plate is provided with a clamping hole which can accommodate the positioning column to pass through; the positioning column can be matched with a positioning hole on the workpiece;
a second air cylinder with a movable position is arranged on the top surface of a positioning piece in front of the telescopic rod of the third air cylinder, and the second air cylinder can be stretched in the vertical direction;
and an air suction hole is formed in the positioning surface of the positioning piece of the third cylinder, which faces the workpiece.
Furthermore, the side face of the clamp body is a step face, the side face of the first step below is connected with the stop block, and the side face of the second step above is matched with the stop block to position the positioning side plate.
Furthermore, the stop block is provided with a thread through hole which can be in threaded connection with the fastening bolt; the side surface of the second step above the first step is provided with a blind hole; the positions of the threaded through hole, the through hole arranged at the lower part of the positioning side plate and the blind hole are correspondingly coaxial.
Furthermore, the blind hole and the through hole at the lower part of the positioning side plate are matched with a pin, and a post rod capable of accommodating the pin penetrates through the through hole;
the fastening bolt penetrates through a threaded hole in the stop block to press the pin, and the positioning side plate is clamped on the clamp body through a column cap of the pin.
Furthermore, a supporting nail with adjustable height is arranged on the upper surface of the clamp body.
Further, the support pin is supported between the inverted workpiece base and the clamp body.
The invention achieves the following beneficial effects:
the full-automatic pneumatic machining clamp for the workpiece hole can be used for machining and positioning the mutually vertical holes on two different planes and can also realize full-automatic clamping. The positioning side plate, the holes in the positioning side plate and the pins and the size and shape and position precision of the positioning side plate and the pins ensure the installation precision of the positioning side plate on the fixture body, so that the positioning of the positioning columns on the workpiece is ensured. The adjustable supporting nail increases the rigidity of the clamp and reduces the vibration generated during hole processing.
Drawings
FIG. 1 is a front view of a workpiece held by the clamp of the present invention;
FIG. 2 is a right side view of FIG. 1;
3 FIG. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 2 3; 3
FIG. 4 is a schematic view of the clamp of the present invention in a state of clamping a workpiece;
FIG. 5 is a second schematic view of the clamp of the present invention in a workpiece clamping position;
FIG. 6 is a schematic view of the positioning side plate;
FIG. 7 is a view of the clamp body in cooperation with the stopper;
FIG. 8 is a schematic view of a pintle;
FIG. 9 is a schematic view of cylinder 12;
FIG. 10 is a schematic view of a locating post;
in the figure, 100, a workpiece, 101, a positioning hole, 102, a main body hole, 103, a base, 104, a base hole, B, a bottom surface, D, an end surface, E, a side surface, 2, a positioning side plate, 21, a clamping hole, 22, a through hole, 3, a positioning column nut, 4, a positioning column, 41, a large cylindrical surface, 42, a long column, 43, a threaded column, 5, a pin, 51, a column rod, 52, a column head, 6, a fastening bolt, 7, a stop, 71, a threaded hole, 8, a clamp body, 81, a first step side surface, 82, a second step side surface, 821, a blind hole, 9, an adjustable supporting nail, 10, 11, 12, a cylinder, 121, a positioning piece, 122, a positioning surface, 123, a top surface, 1221 and an air suction hole.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The full-automatic pneumatic processing clamp for the workpiece hole, disclosed by the invention, is used for processing a main body hole 102 and a base hole 104 on a workpiece 100 shown in figures 1-3 as shown in figures 4, 5, 6, 7 and 8. The full-automatic pneumatic processing clamp for the workpiece hole comprises air cylinders 12 and 10 arranged on the upper surface of a clamp body 8, wherein the telescopic direction of the air cylinder 12 and the telescopic direction of the air cylinder 10 act on a workpiece 100 in the same plane but perpendicular to each other. The side surface of the clamp body 8 is a two-step surface, the first step side surface 81 is connected with the stop block 7, and the stop block 7 is provided with a threaded hole 71. The second step side 82 has a blind hole 821. The blind hole 821, the through hole 22 at the lower part of the positioning side plate 2 and the threaded hole 71 correspond in position, and the center lines of the holes are coaxial. The blind hole 821 and the through hole 22 at the lower part of the positioning side plate 2 are matched with the pin 5, and can accommodate the penetration of the post rod 51 of the pin 5.
Because the surface of the pin 5 has no thread characteristic, the positioning side plate 2 cannot be fastened on the clamp body 8 through the pin 5, the fastening bolt 6 is used for penetrating through the threaded hole 71 on the stop block 7 to press the pin 5, the post rod 51 of the pin 5 penetrates through the through hole 22 at the lower part of the positioning side plate 2 to enter the blind hole 821 on the side surface of the second step surface 82, and the post head 52 of the pin 5 is clamped on the positioning side plate 2, so that the positioning side plate 2 can be firmly installed on the clamp body 8. The main reason for this design is that the second stepped side 82 of the fixture body 8 and the blind hole 821 on the second stepped side 82 can be machined simultaneously by a common machine tool, so that the dimensional and form and position accuracy can be ensured; the same is true of the side faces of the stud 51 of the stud 5 and of the positioning side plate 2 and the hole features thereof, which are intended to better ensure the mounting accuracy of the positioning side plate 2 on the clamp body 8.
The upper part of the positioning side plate 2 is provided with a clamping hole 21 for accommodating the positioning column 4 to pass through. The cylinder 10 is disposed toward one side of the positioning side plate 2 and can extend toward the positioning side plate 2.
The positioning post 4 passes through the clamping hole 21 of the positioning side plate 2, and then is matched with the positioning hole 101 of the workpiece 100, and can pass through the positioning hole 101 of the workpiece 100 as a positioning reference of the workpiece 100. When the workpiece 100 is placed between the cylinder 10 and the positioning side plate 2, the positioning column 4 positions the workpiece 100, the cylinder 10 extends out to clamp the workpiece 100, and the positioning column nut 3 in threaded fit with the positioning column 4 is fastened on the other side surface of the positioning side plate 2. The cylinder 10 can push the end face D of the workpiece 100 to cling to the positioning side plate 2, and can further improve the rigidity of the positioning column 4.
Referring to fig. 9, the top surface 123 of the positioning member 121, which is located in front of the telescopic rod of the cylinder 12, is provided with a movable cylinder 11, and the cylinder 11 can be extended and retracted in the vertical direction.
When the base hole 104 of the workpiece 100 is machined, the workpiece 100 is in the state shown in fig. 4, the bottom surface B faces upward, the air cylinder 11 moves to the foremost end of the positioning member 121 of the air cylinder 12, and moves downward to apply pressure to the bottom surface B for positioning. When the main body hole 102 of the workpiece 100 is machined, the workpiece 100 is in the second state shown in fig. 5, and the cylinder 11 moves to the rear end of the positioning member 121 of the cylinder 12 to avoid interference with the tool during machining.
Since the basic size of the positioning hole 101 is small, in order to increase the strength of the positioning column 4 and to enable the positioning column to be fixed on the positioning side plate 2 more stably, the positioning column 4 is designed to be a stepped shaft, as shown in fig. 10, and includes a long column 42, a large column surface 41 and a threaded column 43 in sequence, wherein the long column 42 is used for positioning a workpiece. The clamping hole 21 corresponding to the positioning side plate 2 is designed to be a large hole for accommodating the large cylindrical surface 41 of the positioning column 4, and the clamping hole 21 is slightly longer than the large cylindrical surface 41 of the positioning column 4, so that the workpiece can be completely attached to the positioning side plate 2 without being hindered by the large cylindrical surface 41. And a threaded column 43 at one end of the positioning column 4 is used for being in threaded connection with the positioning column nut 3, and the positioning column 4 is adjusted and fastened by the positioning column nut 3.
The upper surface of the clamp body 8 is also provided with adjustable support pins 9 when the workpiece 100 is in the condition shown in figure 4-with the base hole 104 machined therein. The adjustable supporting nail 9 is supported between the base 103 where the base hole 104 is located and the clamp body 8 and used for supporting the base 103 so as to improve the rigidity of the clamp and reduce the vibration generated when the base hole 104 is processed.
When the workpiece 100 changes from the state one to the state two, the air cylinder 10 contracts to loosen the workpiece 100, the air cylinder 11 retracts to the rear end of the positioning part of the air cylinder 12 (as shown in the state two in fig. 5), the workpiece 100 can automatically rotate around the positioning column 4 and fall towards the air cylinder 12 due to the force required, the positioning part 121 of the air cylinder 12 is provided with an air suction hole 1221 facing the positioning surface 122 of the workpiece 100, and as shown in fig. 9, suction is performed through the air suction hole to apply a dragging force to the workpiece 100, so that the workpiece 100 rotates, and the bottom surface B falls towards the positioning surface 122 of the air cylinder 12, thereby achieving the purpose of positioning the workpiece by the positioning surface 122.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (6)

1. A full-automatic pneumatic machining clamp for a workpiece hole is characterized by comprising a clamp body, a positioning side plate, a third air cylinder and a first air cylinder, wherein the positioning side plate is perpendicular to the clamp body; a space capable of accommodating a workpiece is enclosed among the positioning side, the third cylinder and the first cylinder;
the telescopic directions of the first cylinder and the third cylinder are on the same plane and are mutually vertical; the first cylinder is arranged towards the positioning side plate and can extend out towards the direction of the positioning side plate;
the upper part of the positioning side plate is provided with a clamping hole which can accommodate the positioning column to pass through; the positioning column can be matched with a positioning hole on the workpiece;
a second air cylinder with a movable position is arranged on the top surface of a positioning piece in front of the telescopic rod of the third air cylinder, and the second air cylinder can be stretched in the vertical direction;
and an air suction hole is formed in the positioning surface of the positioning piece of the third cylinder, which faces the workpiece.
2. The clamp of claim 1, wherein the side surface of the clamp body is a step surface, the lower first step side surface is connected with a stop block, and the upper second step side surface is matched with the stop block to position the positioning side plate.
3. The clamp for full-automatic pneumatic processing of the workpiece hole as claimed in claim 2, wherein the stopper is provided with a threaded through hole which can be in threaded connection with the fastening bolt; the side surface of the second step above the first step is provided with a blind hole; the positions of the threaded through hole, the through hole arranged at the lower part of the positioning side plate and the blind hole are correspondingly coaxial.
4. The clamp of claim 3, wherein the blind hole and the through hole at the lower part of the positioning side plate are matched with a pin, and a pin rod capable of accommodating the pin can penetrate through the through hole;
the fastening bolt penetrates through a threaded hole in the stop block to press the pin, and the positioning side plate is clamped on the clamp body through a column cap of the pin.
5. The clamp of claim 1, wherein the clamp body further comprises a support pin with adjustable height on the upper surface.
6. The clamp of claim 5, wherein the support pin is supported between the inverted workpiece base and the clamp body.
CN202010101594.0A 2020-02-19 2020-02-19 Full-automatic pneumatic machining clamp for workpiece holes Active CN111168447B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010101594.0A CN111168447B (en) 2020-02-19 2020-02-19 Full-automatic pneumatic machining clamp for workpiece holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010101594.0A CN111168447B (en) 2020-02-19 2020-02-19 Full-automatic pneumatic machining clamp for workpiece holes

Publications (2)

Publication Number Publication Date
CN111168447A true CN111168447A (en) 2020-05-19
CN111168447B CN111168447B (en) 2020-12-25

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ID=70651326

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010101594.0A Active CN111168447B (en) 2020-02-19 2020-02-19 Full-automatic pneumatic machining clamp for workpiece holes

Country Status (1)

Country Link
CN (1) CN111168447B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202684572U (en) * 2012-08-04 2013-01-23 荆州精湛机械有限公司 Hydraulic tooling clamp
CN202742104U (en) * 2012-06-18 2013-02-20 昆山市威纶五金电子有限公司 Clamping jig for processing center
KR20140076823A (en) * 2012-12-13 2014-06-23 김용진 auto tool changer
CN105415051A (en) * 2015-12-15 2016-03-23 苏州创丰精密五金有限公司 Fixture for manufacturing cylindrical workpiece
CN206795325U (en) * 2017-03-27 2017-12-26 六安市龙兴汽车零部件有限公司 A kind of automotive transmission milling side fast fixture
CN207344205U (en) * 2017-10-20 2018-05-11 天津市裕泰机械有限责任公司 One kind is used for mechanical processing fast compressing device
CN109277862A (en) * 2018-12-05 2019-01-29 宜昌市蓝德光电机械有限公司 Ratchet clamp for machining and processing method
CN209288828U (en) * 2019-01-03 2019-08-23 广丰国铝实业有限公司 A kind of fixed device of high-efficiency aluminum section steel cutting
CN209935926U (en) * 2019-05-07 2020-01-14 海盐锐捷精密机械有限公司 Clamp for boring

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202742104U (en) * 2012-06-18 2013-02-20 昆山市威纶五金电子有限公司 Clamping jig for processing center
CN202684572U (en) * 2012-08-04 2013-01-23 荆州精湛机械有限公司 Hydraulic tooling clamp
KR20140076823A (en) * 2012-12-13 2014-06-23 김용진 auto tool changer
CN105415051A (en) * 2015-12-15 2016-03-23 苏州创丰精密五金有限公司 Fixture for manufacturing cylindrical workpiece
CN206795325U (en) * 2017-03-27 2017-12-26 六安市龙兴汽车零部件有限公司 A kind of automotive transmission milling side fast fixture
CN207344205U (en) * 2017-10-20 2018-05-11 天津市裕泰机械有限责任公司 One kind is used for mechanical processing fast compressing device
CN109277862A (en) * 2018-12-05 2019-01-29 宜昌市蓝德光电机械有限公司 Ratchet clamp for machining and processing method
CN209288828U (en) * 2019-01-03 2019-08-23 广丰国铝实业有限公司 A kind of fixed device of high-efficiency aluminum section steel cutting
CN209935926U (en) * 2019-05-07 2020-01-14 海盐锐捷精密机械有限公司 Clamp for boring

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Effective date of registration: 20220614

Address after: Mengjiang village, Menghe Town, Xinbei District, Changzhou City, Jiangsu Province

Patentee after: Changzhou Xiaoyang Auto Parts Co.,Ltd.

Address before: 213164 No. 22, Ming Xin Road, Wujin District, Changzhou, Jiangsu.

Patentee before: CHANGZHOU College OF INFORMATION TECHNOLOGY

TR01 Transfer of patent right