CN211072698U - Workpiece clamping device for machining of numerical control milling machine - Google Patents
Workpiece clamping device for machining of numerical control milling machine Download PDFInfo
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- CN211072698U CN211072698U CN201922004233.XU CN201922004233U CN211072698U CN 211072698 U CN211072698 U CN 211072698U CN 201922004233 U CN201922004233 U CN 201922004233U CN 211072698 U CN211072698 U CN 211072698U
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Abstract
The utility model belongs to the field of numerical control milling machines, in particular to a workpiece clamping device for the processing of a numerical control milling machine, which comprises a placing table, wherein two moving grooves which are symmetrically distributed are arranged inside the placing table, two upright posts are arranged inside the moving grooves and are slidably arranged inside the moving grooves, cavities are arranged inside the upright posts, the cavities are of annular structures, ejector rods are arranged inside the cavities, two moving grooves are arranged on the placing table, two upright posts are respectively slidably arranged inside the two moving grooves, a pressing plate is arranged on the upright posts through the ejector rods, the four upright posts are respectively moved to move the corresponding pressing plates to the upper parts of workpieces when the workpieces are processed, then the ejector rods are downwards rotated to make the pressing plates downwards attached on the workpieces, the screw rods are downwards screwed to fix the positions of the pressing plates, the workpieces can be clamped, the device has simple structure and is easy to operate, the workpiece is clamped from four directions through the four pressing plates, so that the workpiece is fixed more firmly.
Description
Technical Field
The utility model relates to a numerically controlled fraise machine field specifically is a work piece clamping device for numerically controlled fraise machine processing.
Background
The numerical control milling machine is also called CNC milling machine, which is an automatic processing device developed on the basis of the common milling machine, the processing technique of the two is basically the same, the structure is similar, the numerical control milling machine is divided into two categories of non-tool magazine and tool magazine, and the numerical control milling machine is an important processing device in the field of mechanical processing.
Present numerically controlled fraise machine is when processing the part, all need use anchor clamps earlier to fix the part of required processing, then just can process, can process different parts man-hour, uses single anchor clamps to be difficult to press from both sides the part of shape, size of difference tightly, needs to change different anchor clamps according to the difference of part, and the suitability is relatively poor, and it is comparatively time-consuming when changing anchor clamps, has reduced machining efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a work piece clamping device for numerically controlled fraise machine processing to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a workpiece clamping device for machining of a numerical control milling machine comprises a placing table, wherein two moving grooves which are symmetrically distributed are formed in the placing table, two upright posts are arranged in the two moving grooves, the upright posts are slidably mounted in the moving grooves, a cavity is formed in the upright posts and is of an annular structure, ejector rods are arranged in the cavity, matched threads are arranged on the inner side wall of the cavity and the outer side wall of the ejector rod, the ejector rods are in threaded connection in the cavity, a pressing plate is rotatably connected to the top end of the ejector rods, screw holes are formed in the top end of the ejector rods, screw rods are fixedly connected in the screw holes in a threaded manner, through holes are formed in the pressing plate, the screw rods upwards penetrate through the through holes and extend to the outer side of the pressing plate, two positioning blocks which are symmetrically distributed are arranged at the top end of the placing table and are respectively, the locating piece is close to one side of stand with the equal fixedly connected with pinion rack of mutually supporting of stand outer wall, the locating piece opposite side rotates and is connected with the locating lever, locating lever threaded connection be in place the platform inside, the locating lever other end extends to place the platform outside.
As a further aspect of the present invention: the diameter of the through hole is larger than that of the screw hole.
As a further aspect of the present invention: the lower end face of the pressing plate is fixedly connected with a rubber pad.
As a further aspect of the present invention: the equal fixedly connected with stopper in shifting chute inner wall both sides, the stopper is located shifting chute bottom.
As a further aspect of the present invention: the bottom of the upright post is fixedly connected with a moving block, and the moving block is slidably arranged between the two limiting blocks.
As a further aspect of the present invention: the bottom end of the placing table is fixedly connected with two clamping blocks which are symmetrically distributed.
As a further aspect of the present invention: the moving groove has openings at both ends.
Compared with the prior art, the beneficial effects of the utility model are that:
the device is provided with two shifting chutes on placing the bench, inside difference slidable mounting of two shifting chutes has two stands, the clamp plate passes through the ejector pin and installs on the stand, move four stands respectively when processing the work piece and remove the top that the clamp plate that will correspond removes the work piece, rotate the ejector pin downwards again and make the clamp plate paste on the work piece downwards, screw up the screw rod down with the rigidity of clamp plate, can press from both sides the work piece tightly, device simple structure, easy operation, press from both sides the work piece tightly from four directions through four clamp plates, it is more firm to the work piece is fixed, improve the stability when work piece adds man-hour, can also adjust the position of four stands through removing four stands during processing, and then adjust the position of four clamp plates, can be to different shapes, the work piece of size centre gripping.
Drawings
FIG. 1 is a schematic structural diagram of a workpiece clamping device for numerically controlled milling machine machining;
FIG. 2 is a schematic sectional view of the front side of a workpiece clamping device for numerically controlled milling machine machining;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is a schematic side view of a workpiece clamping device for numerically controlled milling machine machining.
In the figure: 1. a placing table; 11. a moving groove; 12. a limiting block; 13. a clamping block; 14. positioning blocks; 141. positioning a rod; 2. a column; 21. a cavity; 22. a moving block; 3. a top rod; 31. a screw hole; 32. a screw; 4. pressing a plate; 41. a through hole; 42. a rubber pad; 5. a toothed plate.
Detailed Description
Referring to fig. 1-4, in the embodiment of the present invention, a workpiece clamping device for numerically controlled milling machine processing includes a placing table 1, two moving grooves 11 symmetrically distributed are formed in the placing table 1, two vertical columns 2 are disposed in the two moving grooves 11, the vertical columns 2 are slidably mounted in the moving grooves 11, a cavity 21 is formed in the vertical columns 2, the cavity 21 is an annular structure, a top rod 3 is disposed in the cavity 21, matching threads are disposed on the inner side wall of the cavity 21 and the outer side wall of the top rod 3, the top rod 3 is threadedly connected in the cavity 21, a pressing plate 4 is rotatably connected to the top end of the top rod 3, a screw 31 is disposed at the top end of the top rod 3, a screw 32 is threadedly fixed in the screw 31, a through hole 41 is disposed on the pressing plate 4, the screw 32 extends upward through the through hole 41 to the outside of the, two locating pieces 14 are located the inside 2 outsides of stand of two shifting chutes 11 respectively, and locating piece 14 is close to one side of stand 2 and the equal fixedly connected with pinion rack 5 of mutually supporting of 2 outer walls of stand, and 14 opposite sides of locating piece rotate and are connected with locating lever 141, and locating lever 141 threaded connection is inside placing platform 1, and the locating lever 141 other end extends to and places platform 1 outside.
In fig. 1 to 4: when a workpiece is machined, a placing table 1 is placed on a milling machine workbench, the workpiece is placed through the placing table 1, two moving grooves 11 which are symmetrically distributed are formed in the placing table 1, two upright posts 2 which can slide in the moving grooves 11 are installed in the two moving grooves 11, a rectangle is formed between the four upright posts 2, each upright post 2 exists independently, a worker can move any one upright post 2 at will, the workpiece is placed on a platform formed between the two moving grooves 11 on the placing table 1 during machining, the worker pushes the four upright posts 2 left and right according to the shape and the size of the workpiece, the four upright posts 2 move in the two moving grooves 11 respectively to adjust the positions of the four upright posts 2 respectively, an ejector rod 3 is connected to the inner part of a cavity 21 in the upright posts 2 through a thread, the ejector rod 3 can move up and down in the cavity 21, and a pressing plate 4 is arranged at the top end, the upright posts 2 are moved in the moving grooves 11 by moving the upright posts 2, namely, the positions of the pressing plates 4 on the ejector rods 3 can be adjusted, four upright posts 2 are respectively moved to move the pressing plates 4 above each upright post 2 to the positions above the workpieces, after the positions of the upright posts 2 are adjusted, the positioning rods 141 are screwed inwards, the positioning rods 141 are rotatably connected with the positioning blocks 14, the positioning blocks 14 are pressed inwards by the positioning rods 141, so that the positioning blocks 14 are close to the upright posts 2, the toothed plates 5 matched with each other are arranged on the outer sides of the upright posts 2 and one sides of the positioning blocks 14 close to the upright posts 2, the toothed plates 5 on the upright posts 2 are meshed with the toothed plates 5 on the positioning blocks 14, the positions of the positioning blocks 14 can be fixed by screwing the positioning rods 141, the upright posts 2 can be fixed by mutually meshing the toothed plates 5 on the positioning blocks 14 with the toothed plates 5 on the upright posts, the pressing plate 4 is rotatably connected above the ejector rod 3, the angle of the pressing plate 4 can be adjusted by rotating the pressing plate 4, the four pressing plates 4 are adjusted to be in a horizontal state with the outermost side of the workpiece, the ejector rod 3 is screwed downwards, the outer side wall of the ejector rod 3 and the inner side wall of the cavity 21 are provided with matched threads, the ejector rod 3 moves towards the inside of the cavity 21 under the action of the matched threads, the ejector rod 3 drives the pressing plate 4 to move downwards, the position of the pressing plate 4 can be adjusted, the ejector rod 3 is continuously screwed downwards to enable the pressing plate 4 to move downwards to be close to the workpiece, the lower end face of the pressing plate 4 is attached to the top end of the workpiece, the top end of the ejector rod 3 is provided with a screw hole 31, the screw rod 32 is connected with the inner threads of the screw hole 31, the screw rod 32 upwards penetrates through the through hole 41 and extends to the outside of the, when screw rod 32 moves down, the top of screw rod 32 drives clamp plate 4 and moves down, screw rod 32 is screwed up in the inside position with screw rod 32 of screw hole 31, can be with the rigidity of clamp plate 4, make clamp plate 4 and work piece closely laminate, can be fixed with the work piece, press from both sides the work piece from four directions through four clamp plates 4, it is more firm to the work piece is fixed, improve the stability during work piece processing, the device simple structure, easy operation, can also adjust the position of four stands 2 through removing four stands 2 during processing, and then adjust the position of four clamp plates 4, can be to different shapes, the work piece of size centre gripping, it is fixed, need not frequently change anchor clamps when processing work piece to different shapes, size, the suitability is improved.
In fig. 2 and 3: the diameter of the through hole 41 is larger than that of the screw hole 31, and a rubber pad 42 is fixedly connected to the lower end face of the pressing plate 4; screw rod 32 is located inside through-hole 41, the diameter of through-hole 41 is greater than the diameter of screw 31, through-hole 41 can not contact with screw rod 32 when rotating the angle of 4 adjustment clamp plates of clamp plate 4, make things convenient for the workman to rotate clamp plate 4, after the angle of 4 adjustment clamp plates has been adjusted, it drives clamp plate 4 downstream to twist ejector pin 3 downwards, make terminal surface and work piece contact under the clamp plate 4, screw rod 32 is being twisted with the rigidity of clamp plate 4, the rubber pad 42 and the work piece laminating of terminal surface under the clamp plate 4 this moment, increase the joint strength between clamp plate 4 and the work piece, improve the stability of work piece man-hour, rubber pad 42 can also prevent to shake with the work piece man-hour, lead to work piece striking clamp plate 4.
In fig. 1, 2 and 4: both sides of the inner wall of the moving groove 11 are fixedly connected with limiting blocks 12, the limiting blocks 12 are positioned at the bottom of the moving groove 11, the bottom of the upright post 2 is fixedly connected with a moving block 22, the moving block 22 is slidably installed between the two limiting blocks 12, and both ends of the moving groove 11 are provided with openings; when the upright post 2 needs to be moved, the upright post 2 is pushed leftwards and rightwards, so that the moving block 22 can move between the two limit blocks 12, the upright post 2 is driven to move in the moving groove 11, the position of the upright post 2 is convenient to adjust, the moving block 22 moves between the two limit blocks 12, the two limit blocks 12 are respectively blocked at the two sides of the moving block 22, the moving block 22 can be limited, the upright post 2 is prevented from toppling, the two ends of the moving groove 11 are both provided with openings, the upright post 2 can move out of the placing table 1 through the openings at the two ends of the moving groove 11, a workpiece has residues to be splashed outwards into the moving groove 11 during processing, the upright post 2 can be taken out of the moving groove 11 through the openings at the two ends of the moving groove 11, the moving groove 11 can be cleaned, the smoothness inside the moving groove 11 is kept, the upright post 2 can smoothly move in the moving groove, move stand 2 to the opening part, put movable block 22 between two stopper 12, inside promoting stand 2 and can moving stand 2 to the shifting chute 11, easy operation makes things convenient for workman's installation and dismantlement stand 2, conveniently clears up the shifting chute 11 is inside, keeps the clean and tidy degree of shifting chute 11.
In fig. 1 and 4: the bottom end of the placing table 1 is fixedly connected with two clamping blocks 13 which are symmetrically distributed; the device can be installed on a milling machine workbench through the fixture block 13, and the device is simple to operate and convenient to install and disassemble.
The utility model discloses a theory of operation is: when a workpiece is machined, a placing table 1 is installed on a milling machine workbench through two fixture blocks 13 at the bottom, the workpiece is placed through the placing table 1, a worker pushes four upright columns 2 leftwards and rightwards according to the shape and size of the workpiece to enable the four upright columns 2 to move respectively in two moving grooves 11, the positions of the four upright columns 2 are respectively adjusted, a pressure plate 4 above each upright column 2 is moved above the workpiece, after the positions of the upright columns 2 are adjusted, the positioning rods 141 are screwed inwards, the positioning blocks 14 are pressed inwards by the positioning rods 141 to enable the positioning blocks 14 to approach the upright columns 2, toothed plates 5 on the upright columns 2 and toothed plates 5 on the positioning blocks 14 are meshed with each other, the positions of the positioning blocks 14 can be fixed by screwing the positioning rods 141, the positions of the upright columns 2 are further fixed, the upright columns 2 are prevented from shaking when the workpiece is machined, the fixation of the pressure plates 4 on the workpiece is influenced, the upright columns 2 are fixed, the four pressing plates 4 are adjusted to be in a horizontal state with the outermost side of the workpiece, the ejector rod 3 is screwed downwards to enable the ejector rod 3 to move towards the inside of the cavity 21, the ejector rod 3 drives the pressing plates 4 to move downwards to enable the lower end faces of the pressing plates 4 to be attached to the top end of the workpiece, the screw rod 32 is screwed downwards at the moment, the screw rod 32 moves towards the inside of the screw hole 31, the top end of the screw rod 32 drives the pressing plates 4 to move downwards when the screw rod 32 moves downwards, the screw rod 32 is screwed into the screw hole 31 to fix the position of the screw rod 32, the pressing plates 4 can be fixed, the pressing plates 4 are tightly attached to the workpiece, the workpiece is fixed, the workpiece is clamped from four directions through the four pressing plates 4, the workpiece is fixed more firmly, the stability of the workpiece during processing is improved, the positions of the four pressing plates 4 can be adjusted by moving the four upright posts 2 during processing to adapt, the applicability is improved.
The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The workpiece clamping device for the machining of the numerical control milling machine is characterized by comprising a placing table (1), wherein two moving grooves (11) which are symmetrically distributed are formed in the placing table (1), two upright posts (2) are arranged in the moving grooves (11), the upright posts (2) are slidably mounted in the moving grooves (11), cavities (21) are formed in the upright posts (2), the cavities (21) are of annular structures, ejector rods (3) are arranged in the cavities (21), matched threads are arranged on the inner side walls of the cavities (21) and the outer side walls of the ejector rods (3), the ejector rods (3) are in threaded connection in the cavities (21), a pressing plate (4) is rotatably connected to the top ends of the ejector rods (3), screw holes (31) are formed in the top ends of the ejector rods (3), and screw rods (32) are fixedly screwed in the screw holes (31), through-hole (41) have been seted up on clamp plate (4), screw rod (32) upwards run through-hole (41) extend to clamp plate (4) are outside, place platform (1) top and be provided with locating piece (14) of two symmetric distributions, two locating piece (14) are located two respectively inside moving groove (11) stand (2) the outside, locating piece (14) are close to one side of stand (2) with equal fixedly connected with pinion rack (5) of mutually supporting of stand (2) outer wall, locating piece (14) opposite side rotates and is connected with locating lever (141), locating lever (141) threaded connection is in place platform (1) inside, locating lever (141) other end extends to place platform (1) outside.
2. A workpiece clamping device for numerically controlled fraise machining according to claim 1, characterized in that the diameter of the through hole (41) is larger than the diameter of the threaded hole (31).
3. The workpiece clamping device for the numerically controlled milling machine machining according to claim 1, characterized in that a rubber pad (42) is fixedly connected to the lower end face of the pressure plate (4).
4. The workpiece clamping device for the numerically controlled milling machine machining is characterized in that limiting blocks (12) are fixedly connected to two sides of the inner wall of the moving groove (11), and the limiting blocks (12) are located at the bottom of the moving groove (11).
5. The workpiece clamping device for the numerically controlled milling machine machining is characterized in that a moving block (22) is fixedly connected to the bottom of the upright (2), and the moving block (22) is slidably mounted between the two limiting blocks (12).
6. The workpiece clamping device for the numerically controlled milling machine machining according to claim 1, characterized in that two symmetrically distributed clamping blocks (13) are fixedly connected to the bottom end of the placing table (1).
7. A workpiece clamping device for numerically controlled fraise machining according to claim 1, characterized in that the moving slot (11) has openings at both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922004233.XU CN211072698U (en) | 2019-11-20 | 2019-11-20 | Workpiece clamping device for machining of numerical control milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922004233.XU CN211072698U (en) | 2019-11-20 | 2019-11-20 | Workpiece clamping device for machining of numerical control milling machine |
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| Publication Number | Publication Date |
|---|---|
| CN211072698U true CN211072698U (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922004233.XU Active CN211072698U (en) | 2019-11-20 | 2019-11-20 | Workpiece clamping device for machining of numerical control milling machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111993305A (en) * | 2020-08-11 | 2020-11-27 | 神华神东煤炭集团有限责任公司 | Clamp |
| CN112296713A (en) * | 2020-11-11 | 2021-02-02 | 湖州永盛机械铸造有限公司 | Fixing device is used in machine part processing |
| CN112588889A (en) * | 2020-12-23 | 2021-04-02 | 同济大学 | Industrial robot double-point roll forming processing method and system |
| CN112589427A (en) * | 2020-12-15 | 2021-04-02 | 苏州隆裕达金属制品有限公司 | Desktop type double XYZ screw machine |
| CN113211119A (en) * | 2021-04-13 | 2021-08-06 | 巢湖市聚源机械有限公司 | Adjustable positioning-assisting structure for casting production based on machining center |
-
2019
- 2019-11-20 CN CN201922004233.XU patent/CN211072698U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111993305A (en) * | 2020-08-11 | 2020-11-27 | 神华神东煤炭集团有限责任公司 | Clamp |
| CN112296713A (en) * | 2020-11-11 | 2021-02-02 | 湖州永盛机械铸造有限公司 | Fixing device is used in machine part processing |
| CN112589427A (en) * | 2020-12-15 | 2021-04-02 | 苏州隆裕达金属制品有限公司 | Desktop type double XYZ screw machine |
| CN112588889A (en) * | 2020-12-23 | 2021-04-02 | 同济大学 | Industrial robot double-point roll forming processing method and system |
| CN113211119A (en) * | 2021-04-13 | 2021-08-06 | 巢湖市聚源机械有限公司 | Adjustable positioning-assisting structure for casting production based on machining center |
| CN113211119B (en) * | 2021-04-13 | 2022-08-09 | 巢湖市聚源机械有限公司 | Adjustable positioning-assisting structure for casting production based on machining center |
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