CN111872717A - Anchor clamps for numerical control machining - Google Patents

Anchor clamps for numerical control machining Download PDF

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Publication number
CN111872717A
CN111872717A CN202010768578.7A CN202010768578A CN111872717A CN 111872717 A CN111872717 A CN 111872717A CN 202010768578 A CN202010768578 A CN 202010768578A CN 111872717 A CN111872717 A CN 111872717A
Authority
CN
China
Prior art keywords
clamp
slot
gear
connecting plate
numerical control
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202010768578.7A
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Chinese (zh)
Inventor
郎庆阳
黄志东
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.)
Liaoning Institute of Science and Technology
Original Assignee
Liaoning Institute of Science and Technology
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
Publication date
Application filed by Liaoning Institute of Science and Technology filed Critical Liaoning Institute of Science and Technology
Priority to CN202010768578.7A priority Critical patent/CN111872717A/en
Publication of CN111872717A publication Critical patent/CN111872717A/en
Pending legal-status Critical Current

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    • 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
    • B23Q3/061Work-clamping means adapted for holding a plurality of workpieces

Abstract

The invention relates to a clamp for numerical control machining, which comprises: the top of the workbench is provided with a slot, and two oppositely arranged clamping parts are arranged in the slot; a clamping portion comprising: the connecting plate is horizontally arranged, the connecting plate is arranged in the slot opening in a sliding mode through the guide structure, a supporting plate is fixed to the top of one end of the connecting plate, a plurality of contact parts are uniformly distributed on one side, opposite to the two supporting plates, of the supporting plate, a supporting rod is horizontally arranged in a penetrating mode and arranged on the supporting plate, one end, with the plurality of supporting rods, is hinged to the contact parts, the other end of the supporting rod is provided with a limiting table, and a spring is connected between the limiting table and one surface, away; the clamping device further comprises a driving structure which is arranged on the workbench and used for driving the two clamping parts to move oppositely or reversely. The device can clamp workpieces with complex shapes and different shapes, can ensure the stability of workpiece clamping, and is worthy of popularization.

Description

Anchor clamps for numerical control machining
Technical Field
The invention relates to the technical field of machining, in particular to a clamp for numerical control machining.
Background
The fixture is used for fixing the processing object in the mechanical manufacturing process to enable the processing object to occupy the correct position so as to receive construction or detection.
The clamp types can be divided into: universal clamp, special clamp, adjustable clamp, combined clamp, etc.
When the existing clamp clamps different workpieces, because the workpieces are different in shape, a chuck used by the clamp cannot effectively clamp various different workpieces, at the moment, a specific clamp needs to be made to clamp the workpieces, if the workpieces are small in quantity, especially when the workpieces are irregular in appearance and the surfaces of the workpieces are uneven, a specific clamp is produced for the workpieces small in quantity, which is extremely worthless, but a clamp cannot be made and the workpieces cannot be processed, therefore, the clamp which can adapt to the processing of the workpieces with various complicated shapes and uneven outer surfaces needs to be provided on the premise of not influencing the stability of clamping the workpieces by the clamp.
Disclosure of Invention
The invention aims to provide a clamp for numerical control machining, which can solve the problem of clamping stability of the clamp on workpieces when the clamps are used for machining workpieces with different shapes, particularly workpieces with different shapes and irregular shapes.
The technical scheme of the invention is as follows: a numerical control machining jig, comprising:
a work table;
the slot is formed in the top of the workbench;
two clamping parts set in the slot, and one of them face of two clamping parts is relative, include:
the connecting plate is horizontally arranged and is arranged in the slot opening in a sliding manner through the guide structure;
the supporting plate is arranged at the top of one end of the connecting plate;
the contact parts are uniformly distributed on one side opposite to the two support plates;
the supporting rod penetrates through the supporting plate, one end of the supporting rod is hinged with the contact part, the other end of the supporting rod is provided with a limiting table, and a spring is connected between the limiting table and one surface of the supporting plate, which is far away from the contact part;
the clamping device further comprises a driving structure which is arranged on the workbench and used for driving the two clamping parts to move oppositely or reversely.
Preferably, the driving structure comprises a power structure and a transmission structure, and the output end of the power structure is connected with the input end of the transmission structure.
Preferably, the transmission structure comprises:
the guide groove is vertically arranged on the inner bottom surface of the slot opening;
the transmission column penetrates through the guide groove, the top of the transmission column is hinged with a connecting rod, a rack I is arranged in the length direction of the transmission column, the rack I is meshed with a gear I, and the gear I is sleeved and fixed on the output end of the power structure;
the gear II is erected between the slots;
the eccentric shaft is arranged on one surface of the gear II and is hinged with one end of the connecting rod, which is far away from the transmission column;
and the rack II is arranged at the bottom of the connecting plate along the length direction of the connecting plate, and one surface of the rack II, which is provided with teeth, faces to the inner bottom surface of the slot opening and is meshed with the gear II.
Preferably, the power structure includes the handle that sets up in workstation one side, is connected with the pivot on the handle, and the pivot deviates from the one end and the gear I suit of handle fixed.
Preferably, the guide structure comprises sliding grooves formed in the two inner walls of the slot opening and sliding blocks arranged on the two corresponding side faces of the connecting plate, and the sliding blocks are clamped in the sliding grooves.
Preferably, the contact portion is connected to the support rod by a universal joint.
Preferably, the contact part comprises a supporting block, and a rubber layer is arranged on one surface of the supporting block, which is far away from the supporting rod.
The invention has the beneficial effects that:
1. the clamp for numerical control machining provided by the invention can be used in a large scale.
2. According to the clamp for the numerical control machining, the transmission structure is driven to act through the power structure, so that the gear II of the transmission structure rotates, the gear II is meshed with the rack II to drive the two clamping parts to clamp a workpiece, and in a clamping process, the workpiece is clamped by the multiple contact parts on the clamping parts in a multi-point mode, so that the stability of workpiece clamping is guaranteed.
3. According to the clamp for the numerical control machining, the universal joint is connected between the contact part and the support rod, so that when the contact part is contacted with a workpiece, the contact area between the support block of the contact part and the workpiece can be adjusted, namely the support block can rotate at any angle through the universal joint, most of the contact surface of the contact part is always contacted with the workpiece, and therefore different workpieces with complex shapes and different shapes can be clamped, the stability of workpiece clamping is further ensured, the device is high in adaptability, and the clamp is worthy of popularization.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a cross-sectional view of the overall structure a-a of the present invention.
Detailed Description
An embodiment of the present invention will be described in detail with reference to fig. 1 to 2, but it should be understood that the scope of the present invention is not limited by the embodiment.
The embodiment of the invention provides a clamp for numerical control machining, as shown in fig. 1 to 2, comprising: the top of the workbench 1 is provided with a slot 12, and the slot 12 is internally provided with two oppositely arranged clamping parts 2.
The clamping part 2 includes: the connecting plate 21 that the level set up, the connecting plate 21 passes through the gliding setting of guide structure 3 in groove seam 12, the top of connecting plate 21 one end is fixed with backup pad 22, the equipartition is provided with a plurality of contact sites 26 on the relative one side of two backup pads 22, wear to be equipped with the bracing piece 27 that the level set up on the backup pad 22, the one end that the bracing piece 27 is many is articulated with contact site 26, the bracing piece 27 other end sets up spacing platform 23, be connected with spring 24 between the one side that deviates from contact site 26 at spacing platform 23 and backup pad 22.
The clamping device further comprises a driving structure which is arranged on the workbench 1 and used for driving the two clamping parts 2 to move oppositely or reversely.
Furthermore, the driving structure comprises a power structure and a transmission structure, and the output end of the power structure is connected with the input end of the transmission structure 4.
Wherein, transmission structure 4 includes: the vertical slot 12 in the inner bottom surface of the guide slot 11, insert in the guide slot 11 in the transmission column 42, the transmission column 42 top is hinged with the connecting rod 44, in the transmission column 42 length direction is provided with the rack I, the rack I and the gear I meshing, the gear I suit is fixed on the power structure output end; a gear II43 is spanned between the slots 12, one side of the gear II43 is provided with an eccentric shaft, and the eccentric shaft is hinged with one end of the connecting rod 44 departing from the transmission column 42; and a rack II which is arranged at the bottom of the connecting plate 21 along the length direction of the connecting plate 21, faces the inner bottom surface of the slot 12 and is meshed with the gear II 43.
Wherein, power structure is connected with pivot 5 including setting up the handle 6 in workstation 1 one side on the handle 6, and pivot 5 deviates from the one end and the gear I suit of handle 6 and fixes.
Further, in order to facilitate the stable movement of the two clamping portions, the guiding structure 3 includes sliding grooves formed on the two inner walls of the slot opening 12 and sliding blocks arranged on the two corresponding side surfaces of the connecting plate 21, and the sliding blocks are clamped in the sliding grooves.
Further, in order to contact most of the contact surface of the contact portion 26 with the workpiece, the contact portion 26 is connected to the support rod 27 via the universal joint 25 in the present invention.
Further, in order to prevent the surface of the workpiece from being worn, the contact portion 26 includes a support block, and a rubber layer is disposed on a side of the support block facing away from the support rod 27.
Principle of operation
When the clamping device is used, as shown in fig. 1, a part of a workpiece to be clamped is placed between two clamping parts 2, then the rotating shaft 5 is rotated through the rotating handle 6, the rotating shaft 5 drives the transmission gear I to rotate, the gear I is meshed with the rack I on the transmission column 42, so as to drive the transmission column 42 to move downwards, the lug plate 45 at the top of the transmission column 42 pulls the connecting rod 44 to move downwards, meanwhile, the connecting rod 44 pulls the gear II43 to rotate, the gear II43 is meshed with the rack II to drive the two supporting plates 22 to move towards each other until the contact parts 26 on the two supporting plates 22 contact the surface of the workpiece, during the continuous clamping process, each contact part 26 can adapt to the angle of the surface of the workpiece through the rotation of the universal joint 25 according to the included angle between the surface of the workpiece in the clamping and the vertical plane until the workpiece is clamped, at this time, a plurality of contact parts 26 are respectively clamped on the same workpiece, therefore, the clamping of the workpiece is more stable, and the universal joint 25 is connected between the contact part 26 and the support rod 27, so that when the contact part 26 is contacted with the workpiece, the contact area between the support block of the contact part 26 and the workpiece can be adjusted, namely, the support block can rotate at any angle through the universal joint 25, and most of the contact surface of the contact part 26 is always contacted with the workpiece.
In summary, the clamp for numerical control machining provided by the embodiment of the invention drives the transmission structure to move through the power structure, so that the gear II of the transmission structure rotates, the gear II is meshed with the rack II to drive the two clamping portions to clamp the workpiece, and in the clamping process, the plurality of contact portions on the clamping portions clamp the workpiece at multiple points, so that the stability of clamping the workpiece is ensured; through connecting the universal joint between contact site and bracing piece to when guaranteeing contact site and work piece contact, can adjust the area of contact of the supporting shoe of contact site and work piece, the supporting shoe passes through the universal joint can arbitrary angle rotation, makes most contact surface and the work piece contact of contact site all the time, thereby can be complicated to the appearance, the different work piece centre gripping that the shape differs further guarantees the stability of work piece centre gripping, and the strong adaptability of this device is worth promoting.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims (7)

1. The utility model provides a anchor clamps for numerical control machining which characterized in that includes:
a table (1);
the slot (12) is arranged at the top of the workbench (1);
two clamping part (2), set up in slot (12), and two clamping part (2) wherein one side is relative, include:
the connecting plate (21) is horizontally arranged and is arranged in the slot (12) in a sliding way through the guide structure (3);
a support plate (22) disposed on the top of one end of the connecting plate (21);
a plurality of contact parts (26) which are uniformly distributed on one side opposite to the two support plates (22);
the supporting rod (27) penetrates through the supporting plate (22), one end of the supporting rod is hinged with the contact part (26), the other end of the supporting rod is provided with a limiting table (23), and a spring (24) is connected between the limiting table (23) and one surface of the supporting plate (22) departing from the contact part (26);
the clamping device further comprises a driving structure which is arranged on the workbench (1) and used for driving the two clamping parts (2) to move in opposite directions or in reverse directions.
2. The clamp for numerical control machining according to claim 1, characterized in that the drive structure comprises a power structure and a transmission structure, the output of the power structure being connected to the input of the transmission structure (4).
3. A clamp for numerically controlled machining according to claim 2, characterized in that the transmission structure (4) comprises:
the guide groove (11) is vertically arranged on the inner bottom surface of the slot opening (12);
the transmission column (42) penetrates through the guide groove (11), the top of the transmission column is hinged with a connecting rod (44), a rack I is arranged in the length direction of the transmission column (42), the rack I is meshed with a gear I, and the gear I is sleeved and fixed on the output end of the power structure;
a gear II (43) mounted between the slots (12);
the eccentric shaft is arranged on one surface of the gear II (43) and is hinged with one end of the connecting rod (44) departing from the transmission column (42);
and the rack II is arranged at the bottom of the connecting plate (21) along the length direction of the connecting plate (21), and one surface of the rack II, which is provided with teeth, faces to the inner bottom surface of the slot (12) and is meshed with the gear II (43).
4. The clamp for numerical control machining according to claim 3, characterized in that the power structure comprises a handle (6) arranged on one side of the workbench (1), the handle (6) is connected with a rotating shaft (5), and one end of the rotating shaft (5) departing from the handle (6) is fixedly sleeved with the gear I.
5. The clamp for numerical control machining according to claim 1, characterized in that said guide structure (3) comprises sliding grooves provided on two inner walls of the slot (12) and sliding blocks provided on the corresponding two side faces of the connecting plate (21), said sliding blocks being clamped in the sliding grooves.
6. A clamp for numerically controlled machining according to claim 1, characterized in that said contact portion (26) is connected to the support rod (27) by means of a universal joint (25).
7. The clamp for numerical control machining according to claim 1, characterized in that the contact portion (26) comprises a support block, and a rubber layer is provided on a side of the support block facing away from the support rod (27).
CN202010768578.7A 2020-08-03 2020-08-03 Anchor clamps for numerical control machining Pending CN111872717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010768578.7A CN111872717A (en) 2020-08-03 2020-08-03 Anchor clamps for numerical control machining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010768578.7A CN111872717A (en) 2020-08-03 2020-08-03 Anchor clamps for numerical control machining

Publications (1)

Publication Number Publication Date
CN111872717A true CN111872717A (en) 2020-11-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010768578.7A Pending CN111872717A (en) 2020-08-03 2020-08-03 Anchor clamps for numerical control machining

Country Status (1)

Country Link
CN (1) CN111872717A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112338777A (en) * 2020-11-06 2021-02-09 胡晓霖 Electric power fitting surface grinding device
CN113211129A (en) * 2021-05-17 2021-08-06 西安交通工程学院 Machining clamp for mechanical production
CN113319335A (en) * 2021-05-13 2021-08-31 广州和之诚金属制品有限公司 Process and equipment for machining small-bore inner hole

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754708A (en) * 1953-08-25 1956-07-17 Multiple Die Vise Co Inc Vise for irregularly shaped objects
CN203665159U (en) * 2014-01-06 2014-06-25 温岭市巨鑫机床厂 Automatic centering clamp
CN105710676A (en) * 2016-04-14 2016-06-29 燕山大学 Flexible clamp
CN205703558U (en) * 2016-05-03 2016-11-23 徐学铖 Floor tile device for grinding used by a kind of finishing
CN106594208A (en) * 2016-11-28 2017-04-26 桐城市湃腾机械设计有限公司 Clamping mechanism based on gear-rack transmission
CN209288802U (en) * 2018-12-25 2019-08-23 南京东升冶金机械有限公司 A kind of clamping tooling for end face milling & centering machine
CN210335165U (en) * 2019-05-22 2020-04-17 江苏华亚照明有限公司 Fixing clamp for machining LED street lamp shell

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754708A (en) * 1953-08-25 1956-07-17 Multiple Die Vise Co Inc Vise for irregularly shaped objects
CN203665159U (en) * 2014-01-06 2014-06-25 温岭市巨鑫机床厂 Automatic centering clamp
CN105710676A (en) * 2016-04-14 2016-06-29 燕山大学 Flexible clamp
CN205703558U (en) * 2016-05-03 2016-11-23 徐学铖 Floor tile device for grinding used by a kind of finishing
CN106594208A (en) * 2016-11-28 2017-04-26 桐城市湃腾机械设计有限公司 Clamping mechanism based on gear-rack transmission
CN209288802U (en) * 2018-12-25 2019-08-23 南京东升冶金机械有限公司 A kind of clamping tooling for end face milling & centering machine
CN210335165U (en) * 2019-05-22 2020-04-17 江苏华亚照明有限公司 Fixing clamp for machining LED street lamp shell

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112338777A (en) * 2020-11-06 2021-02-09 胡晓霖 Electric power fitting surface grinding device
CN113319335A (en) * 2021-05-13 2021-08-31 广州和之诚金属制品有限公司 Process and equipment for machining small-bore inner hole
CN113211129A (en) * 2021-05-17 2021-08-06 西安交通工程学院 Machining clamp for mechanical production

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Application publication date: 20201103

RJ01 Rejection of invention patent application after publication