CN112621269A - Bar clamping device for numerical control milling machine - Google Patents
Bar clamping device for numerical control milling machine Download PDFInfo
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- CN112621269A CN112621269A CN202011452865.3A CN202011452865A CN112621269A CN 112621269 A CN112621269 A CN 112621269A CN 202011452865 A CN202011452865 A CN 202011452865A CN 112621269 A CN112621269 A CN 112621269A
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- clamping jaw
- bar
- jaw
- milling machine
- clamping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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Abstract
The invention relates to a bar clamping device for a numerical control milling machine, which comprises a base arranged on the numerical control milling machine, a control assembly arranged on the base, a first clamping jaw and a second clamping jaw which are connected with the control assembly, wherein the first clamping jaw and the second clamping jaw are provided with accommodating cavities, the accommodating cavities are used for clamping bars, the cross section of each accommodating cavity is circular, the control assembly is used for controlling the first clamping jaw and the second clamping jaw to move along the directions of an X axis and a Y axis, and the opening and closing directions of the first clamping jaw and the second clamping jaw are along the direction of the X axis. The application provides a pair of bar clamping device for numerically controlled fraise machine, it is reliable to press from both sides tight bar, can not appear the unable tight condition of clamp of bar in the course of working, avoids the problem that the bar broke the sword.
Description
Technical Field
The invention relates to the technical field of numerical control machining, in particular to a bar clamping device for a numerical control milling machine.
Background
The Numerical control milling machine is also called CNC (computer Numerical control) milling machine. English means a milling machine controlled by an electronic counter. The numerical control milling machine is an automatic processing device developed on the basis of a common milling machine, the processing technologies of the two are basically the same, and the structures are somewhat similar. The numerical control milling machine is divided into two categories, namely a tool magazine without tool magazine and a tool magazine with tool magazine. Wherein the numerical control milling machine with the tool magazine is also called as a machining center.
The shape of the machined surface of the milling machine is generally composed of straight lines, arcs or other curves. The ordinary milling machine operator follows the requirements of the pattern. The relative position between the cutter and the workpiece is continuously changed, and then the cutter is matched with the selected rotation speed of the milling cutter to cut the workpiece, so that various workpieces with different shapes can be machined. The numerical control machine tool machining is to divide the motion coordinates of a tool and a workpiece into minimum unit quantity, namely minimum displacement quantity. And the numerical control system moves each coordinate by a plurality of minimum displacement according to the requirements of the workpiece program, so that the relative motion of the cutter and the workpiece is realized, and the machining of the part is finished.
Milling flutes on the lateral wall of bar when needs, perhaps processing curved surface, need accomplish relevant process on the numerically controlled fraise machine, and the clamping mode that traditional numerically controlled fraise machine adopted puts the bar in V type anchor clamps, adopts the clamp plate again, compresses tightly the bar, supports to lean on the locating piece on the lateral wall of bar, and the process of whole clamping is comparatively loaded down with trivial details, and the bolt on general clamp plate is inefficacy, the condition that the bar was beaten the sword will appear at the in-process of processing.
Disclosure of Invention
The technical problem is solved, and the invention aims to provide a bar clamping device for a numerical control milling machine, which is reliable in bar clamping, avoids the situation that a bar cannot be clamped in the processing process, and avoids the problem of bar knife striking.
The technical scheme of the invention is as follows:
a bar clamping device for a numerical control milling machine comprises a base arranged on the numerical control milling machine;
the control assembly is arranged on the base;
the first clamping jaw and the second clamping jaw are connected with the control assembly;
the first clamping jaw and the second clamping jaw are provided with accommodating cavities, the accommodating cavities are used for clamping bars, and the cross sections of the accommodating cavities are circular;
the control assembly is used for controlling the first clamping jaw and the second clamping jaw to move along the directions of an X axis and a Y axis, and the opening and closing directions of the first clamping jaw and the second clamping jaw are along the radial direction of the X axis.
Preferably, the bottom of the receiving cavity is in contact with an end face datum on the bar stock.
Preferably, the control assembly comprises a first driving assembly for driving the second jaw to move towards the first jaw;
and the second driving component drives the first clamping jaw to move towards the second clamping jaw so as to realize the opening and closing of the first clamping jaw and the second clamping jaw.
Preferably, the device comprises a first support and a second support;
the first driving assembly comprises a first sliding block arranged above the first support;
a first polish rod passing through the first slider;
the first screw rod is arranged in parallel with the first polish rod, the first screw rod is in threaded connection with the first sliding block, and the end part of the first screw rod is fixedly connected with the first clamping jaw.
Preferably, the second driving assembly comprises a second sliding block arranged above the second support;
a second polish rod passing through the second slider;
and the second screw rod is arranged in parallel with the second polish rod, the second screw rod is in threaded connection with the second sliding block, and the end part of the second screw rod is fixedly connected with the second clamping jaw.
Preferably, the first clamping jaw is fixedly connected with the end part of the first screw rod through a first mounting plate;
a first chute is arranged on the first mounting plate;
and a first sliding rail is arranged on the first clamping jaw and matched with the first sliding groove.
Preferably, the second jaw is fixedly connected with the end part of the second screw rod through a second mounting plate;
a second chute is arranged on the second mounting plate;
and a second slide rail is arranged on the second clamping jaw and matched with the second sliding groove.
Preferably, in the axial direction of the bar stock, third sliding blocks are arranged at two ends below the first mounting plate, and fourth sliding blocks are arranged at two ends below the second mounting plate;
the third sliding block and the fourth sliding block are matched with a third polished rod;
and third supports are arranged at two ends of the third polished rod in the axial direction, the third supports are detachably connected with the third polished rod, and the third supports are connected with the base.
Preferably, the first jaw and the second jaw are both provided with weight-reducing cavities,
the weight reduction cavity and the bar stock are concentrically arranged.
The invention provides a bar clamping device for a numerical control milling machine, which comprises a base arranged on the numerical control milling machine, a control assembly arranged on the base, a first clamping jaw and a second clamping jaw which are connected with the control assembly, wherein the first clamping jaw and the second clamping jaw are provided with accommodating cavities, the accommodating cavities are used for clamping bars, the cross section of each accommodating cavity is circular, the control assembly is used for controlling the first clamping jaw and the second clamping jaw to move along the directions of an X axis and a Y axis, and the opening and closing directions of the first clamping jaw and the second clamping jaw are along the radial direction of the X axis. Compared with the prior art, the beneficial effect that is used for numerically controlled fraise machine's bar clamping device that this application provided is: the accommodating cavity formed by the first jaw and the second jaw is in surface contact with the bar, but not in bus contact in the prior art, so that the contact area is increased, the bar is not easy to leap up in the machining process, the control assembly is adopted to control the movement of the first jaw and the second jaw in the X-axis direction and the Y-axis direction, and the opening and closing of the first jaw and the second jaw are realized.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a bar stock clamping device for a numerically controlled milling machine according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a bar clamping device for a numerically controlled milling machine according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a bar stock clamping device for a numerically controlled milling machine according to an embodiment of the present invention.
Reference numbers in the drawings illustrate: 1. a base; 2. a first jaw; 3. a second jaw; 4. an accommodating chamber; 5. a first support; 6. a second support; 7. a first slider; 8. a first polish rod; 9. a first lead screw; 10. a second slider; 12. a second polish rod; 13. a second lead screw; 14. a first mounting plate; 16. a first slide rail; 17. a second mounting plate; 19. a second slide rail; 20. a third slider; 21. a fourth slider; 22. a third polish rod; 23. a third support; 24. a weight-reducing cavity.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like, indicate an orientation or positional relationship only for convenience of description and simplicity of description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1 to 3, the invention provides a bar stock clamping device for a numerically controlled milling machine, which includes a base 1 mounted on the numerically controlled milling machine, a control component mounted on the base 1, and a first jaw 2 and a second jaw 3 connected to the control component, wherein the first jaw 2 and the second jaw 3 are provided with an accommodating cavity 4, the accommodating cavity 4 is used for clamping a bar stock, the cross section of the accommodating cavity 4 is circular, the control component is used for controlling the first jaw 2 and the second jaw 3 to move along X-axis and Y-axis directions, and the opening and closing directions of the first jaw 2 and the second jaw 3 are along the radial direction of the X-axis. Compared with the prior art, the beneficial effect that is used for numerically controlled fraise machine's bar clamping device that this application provided is: the accommodating cavity 4 formed by the first jaw 2 and the second jaw 3 is in surface contact with the bar, but not in bus contact in the prior art, so that the contact area is increased, the bar is not easy to move in the machining process, the control assembly is adopted to control the movement of the first jaw 2, the second jaw 3 in the X axis and Y axis directions, the first jaw 2 and the second jaw 3 are opened and closed, and compared with manual disassembly and assembly in the prior art, the auxiliary clamping time is reduced, and the damage to the bar in the disassembly and assembly process is also avoided.
Wherein the bottom of the receiving cavity 4 is in contact with the end face datum on the bar. Therefore, in the processing process, the surface on the bottom of the accommodating cavity 4 and the circle center of the accommodating cavity 4 are always used as a processing coordinate system, the processing coordinate system is established without marking when processing the bar materials, and the processing efficiency of processing the curved surface on the bar materials is greatly improved. In the prior art, marking and establishing a machining coordinate system of the numerical control milling machine are things which test the level and technical success of an operator, so that the technical requirement on the operator is low by using the bar clamping device for the numerical control milling machine in the embodiment, and only the end surface reference of the bar needs to be abutted against the bottom of the accommodating cavity 4.
Further, the control assembly comprises a first driving assembly for driving the second jaw 3 to move towards the first jaw 2, and a second driving assembly for driving the first jaw 2 to move towards the second jaw 3, so that the first jaw 2 and the second jaw 3 can be opened and closed. The first jaw 2 and the second jaw 3 are controlled to be opened and closed respectively through the first driving assembly and the second driving assembly, and the operation time for clamping the bar is shortened.
The first driving assembly comprises a first sliding block 7 arranged above the first support 5, a first polished rod 8 penetrating through the first sliding block 7 and a first lead screw 9 arranged in parallel with the first polished rod 8, the first lead screw 9 is connected with the first sliding block 7 in a threaded manner, and the end part of the first lead screw 9 is fixedly connected with the first clamping jaw 2. Through the first slider 7, the first polished rod 8, the first lead screw 9 and the connection mode with the first jack catch 2, make the displacement control of first jack catch 2 in the X axle direction more accurate, avoid appearing the micro-clearance between first jack catch 2 and the bar lateral wall, it should be explained that the X axle direction said in this application indicates the radial direction of bar, and the Y axle direction indicates the axis direction of bar.
Preferably, the second driving assembly comprises a second sliding block 10 arranged above the second support 6, a second polished rod 12 penetrating through the second sliding block 10, a second lead screw 13 arranged in parallel with the second polished rod 12, the second lead screw 13 is in threaded connection with the second sliding block 10, and the end part of the second lead screw 13 is fixedly connected with the second jaw 3. Through the second slider 10, the second polished rod 12, the second lead screw 13 and the connection mode with the second jack catch 3, make the moving distance control of second jack catch 3 on the X axle direction more accurate, avoid appearing the micro-gap between second jack catch 3 and the bar lateral wall.
The first clamping jaw 2 is fixedly connected with the end part of the first screw rod 9 through a first mounting plate 14, a first sliding groove is formed in the first mounting plate 14, a first sliding rail 16 is arranged on the first clamping jaw 2, and the first sliding rail 16 is matched with the first sliding groove; the length direction of the first sliding groove is parallel to the axial direction of the bar, the structure can realize the movement along the axial direction of the bar, and the special application scene is that when the length of the bar exceeds the stroke of the numerical control milling machine in the Y direction, the stroke of the numerical control milling machine in the Y direction can be improved by using the sum of the lengths of the first sliding rail 16 and the first sliding groove.
Preferably, the second jaw 3 is fixedly connected to the end of the second lead screw 13 through a second mounting plate 17, a second sliding groove is formed in the second mounting plate 17, a second sliding rail 19 is formed in the second jaw 3, the second sliding rail 19 is matched with the second sliding groove, and the length direction of the second sliding groove is parallel to the axial direction of the bar. The structure can realize the movement along the axial direction of the bar, and the special application scene is that when the length of the bar exceeds the stroke of the numerical control milling machine in the Y direction, the sum of the lengths of the second slide rail 19 and the second slide groove can be used for improving the stroke of the numerical control milling machine in the Y direction.
Wherein, along the axial direction of bar, the both ends of the below of first mounting panel 14 all are equipped with third slider 20, and the both ends of the below of second mounting panel 17 all are equipped with fourth slider 21, and third slider 20, fourth slider 21 all cooperate with third polished rod 22, are equipped with third support 23 along the ascending both ends of axis of third polished rod 22, and third support 23 can dismantle with third polished rod 22 and be connected, third support 23 with base 1 is connected. Therefore, the first clamping jaw 2 and the second clamping jaw 3 can move more stably in the X axial direction, the third support 23 and the third polish rod 22 provide auxiliary support for the first clamping jaw and the second clamping jaw 3, and the structures of the two third polish rods 22, the first polish rod 8 and the first lead screw 9 form a triangle-like model, so that the first clamping jaw 2 moves more stably, and the technical mechanism of the second clamping jaw 3 is the same, which is not repeated herein.
In the embodiment provided by the invention, the first jaw 2 and the second jaw 3 are both provided with a weight reducing cavity 24, and the weight reducing cavity 24 is arranged concentrically with the bar stock. The arrangement of the weight reducing cavity 24 can reduce the operation load of the bar clamping device for the numerically controlled milling machine on the basis that the first clamping jaw 2 and the second clamping jaw 3 are required to clamp the bar.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts in the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A bar clamping device for a numerical control milling machine is characterized by comprising a base (1) arranged on the numerical control milling machine;
the control component is arranged on the base (1);
the first jaw (2) and the second jaw (3) are connected with the control component;
the first clamping jaw (2) and the second clamping jaw (3) are provided with accommodating cavities (4), the accommodating cavities (4) are used for clamping bars, and the cross sections of the accommodating cavities (4) are circular;
the control assembly is used for controlling the first clamping jaw (2) and the second clamping jaw (3) to move along the directions of an X axis and a Y axis, and the opening and closing directions of the first clamping jaw (2) and the second clamping jaw (3) are along the direction of the X axis.
2. A bar clamping device for a numerically controlled milling machine according to claim 1, characterized in that the bottom of the housing cavity (4) is in contact with an end-face datum on the bar.
3. A bar clamping device for a numerically controlled milling machine according to claim 1, characterized in that the control assembly comprises a first driving assembly that drives the second jaw (3) to move towards the first jaw (2);
and the second driving component drives the first clamping jaw (2) to move towards the second clamping jaw (3) so as to realize the opening and closing of the first clamping jaw (2) and the second clamping jaw (3).
4. A bar clamping device for a numerically controlled milling machine according to claim 3, characterized by comprising a first seat (5), a second seat (6);
the first driving component comprises a first sliding block (7) arranged above the first support (5);
a first polish rod (8) passing through the first slider (7);
the first screw rod (9) is arranged in parallel with the first polish rod (8), the first screw rod (9) is connected with the first sliding block (7) in a threaded mode, and the end portion of the first screw rod (9) is fixedly connected with the first clamping jaw (2).
5. The bar stock holding device for the numerically controlled milling machine as recited in claim 4,
the second driving component comprises a second sliding block (10) arranged above the second support (6);
a second polish rod (12) passing through the second slider (10);
and the second screw rod (13) is arranged in parallel with the second polished rod (12), the second screw rod (13) is connected with the second sliding block (10) in a threaded manner, and the end part of the second screw rod (13) is fixedly connected with the second clamping jaw (3).
6. The bar stock holding device for the numerically controlled milling machine as recited in claim 5,
the first clamping jaw (2) is fixedly connected with the end part of the first screw rod (9) through a first mounting plate (14);
a first chute is arranged on the first mounting plate (14);
a first sliding rail (16) is arranged on the first clamping jaw (2), and the first sliding rail (16) is matched with the first sliding groove;
the length direction of the first sliding groove is parallel to the axial direction of the bar stock.
7. The bar stock holding device for the numerically controlled milling machine as recited in claim 6,
the second clamping jaw (3) is fixedly connected with the end part of the second screw rod (13) through a second mounting plate (17);
a second chute is arranged on the second mounting plate (17);
a second sliding rail (19) is arranged on the second clamping jaw (3), and the second sliding rail (19) is matched with the second sliding groove;
the length direction of the second sliding groove is parallel to the axial direction of the bar stock.
8. The bar stock holding device for the numerically controlled milling machine as recited in claim 7,
in the axial direction of the bar stock, third sliding blocks (20) are arranged at two ends below the first mounting plate (14), and fourth sliding blocks (21) are arranged at two ends below the second mounting plate (17);
the third sliding block (20) and the fourth sliding block (21) are matched with a third polished rod (22);
third supports (23) are arranged at two ends of the third polish rod (22) in the axial direction, the third supports (23) are detachably connected with the third polish rod (22), and the third supports (23) are connected with the base (1).
9. The bar stock holding device for the numerically controlled milling machine as recited in claim 1,
the first clamping jaw (2) and the second clamping jaw (3) are both provided with a weight-reducing cavity (24),
the weight-reducing cavity (24) is arranged concentrically with the bar stock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011452865.3A CN112621269A (en) | 2020-12-11 | 2020-12-11 | Bar clamping device for numerical control milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011452865.3A CN112621269A (en) | 2020-12-11 | 2020-12-11 | Bar clamping device for numerical control milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112621269A true CN112621269A (en) | 2021-04-09 |
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ID=75309778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011452865.3A Pending CN112621269A (en) | 2020-12-11 | 2020-12-11 | Bar clamping device for numerical control milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112621269A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108202242A (en) * | 2016-12-20 | 2018-06-26 | 上海电气电站设备有限公司 | A kind of clamping tooling |
| CN210024490U (en) * | 2019-04-17 | 2020-02-07 | 三明市闽控电气设备有限公司 | Block terminal preparation is with pressing from both sides tight frock |
| CN210849259U (en) * | 2019-10-30 | 2020-06-26 | 佛山市尚骏模具有限公司 | Double-end-surface milling machine clamp |
-
2020
- 2020-12-11 CN CN202011452865.3A patent/CN112621269A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108202242A (en) * | 2016-12-20 | 2018-06-26 | 上海电气电站设备有限公司 | A kind of clamping tooling |
| CN210024490U (en) * | 2019-04-17 | 2020-02-07 | 三明市闽控电气设备有限公司 | Block terminal preparation is with pressing from both sides tight frock |
| CN210849259U (en) * | 2019-10-30 | 2020-06-26 | 佛山市尚骏模具有限公司 | Double-end-surface milling machine clamp |
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Application publication date: 20210409 |
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