CN114473567A - CNC is centre gripping frock for work piece processing - Google Patents
CNC is centre gripping frock for work piece processing Download PDFInfo
- Publication number
- CN114473567A CN114473567A CN202210084643.3A CN202210084643A CN114473567A CN 114473567 A CN114473567 A CN 114473567A CN 202210084643 A CN202210084643 A CN 202210084643A CN 114473567 A CN114473567 A CN 114473567A
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- clamping
- worm
- base box
- rack
- worm wheel
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- 238000003754 machining Methods 0.000 claims abstract description 25
- 230000001360 synchronised effect Effects 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 238000011017 operating method Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- 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
- B23Q3/02—Devices 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
- B23Q3/06—Work-clamping means
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to the technical field of clamping tools, and provides a clamping tool for CNC workpiece machining, which comprises a base box and a centering disc, wherein the base box is provided with a base plate; three radial sliding chutes are uniformly and annularly arranged around the center of the centering disc, and a clamping block is slidably arranged in each radial sliding chute; a clamping rack is arranged in each radial sliding groove in a sliding manner; the top surface of the clamping rack is fixedly connected with a clamping block, and the bottom surface of the clamping rack is meshed with a worm wheel; the worm wheel is in transmission connection with a horizontally arranged worm; the center position of the bottom of the base box is provided with a synchronous turntable. Therefore, the three clamping blocks are uniformly and annularly arranged on the centering disc; utilize worm gear drive and make worm gear drive press from both sides tight rack to use synchronous carousel drive three worm synchronous rotations, thereby make three press from both sides tight piece and remove the blank with central moving in step, and accomplished the centering of blank when fixed, saved the centering adjustment link of blank, very big simplification the operating procedure, improved the operating efficiency when guaranteeing the precision.
Description
Technical Field
The invention belongs to the technical field of clamping tools, and particularly relates to a clamping tool for CNC workpiece machining.
Background
CNC machining generally refers to computer numerical control precision machining, such as CNC machining lathes, CNC machining milling machines, CNC machining boring and milling machines, and the like.
When the parts adopt special machining equipment such as a lathe, a machining center and the like, the clamping of the blank piece is a key step. For example, in many circular workpieces, the dimensional accuracy of a plurality of surfaces or holes is determined based on the center of a circle, so that the center of a blank and the rotation axis of a machine tool rotating disc need to be adjusted to be coincident in the clamping stage.
Referring to fig. 1, a conventional clamping method is to hang a workpiece 100 on a worktable 200 of a processing apparatus, adjust the workpiece manually, and fix the workpiece 100 with a fastener 201. The adjustment process depends on the operation of operators, so the adjustment time is long. If a large deviation occurs, even the position of the workpiece needs to be moved, and the operation efficiency is seriously influenced.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
Disclosure of Invention
Aiming at the defects, the invention aims to provide a clamping tool for CNC workpiece machining, which is characterized in that three clamping blocks are uniformly and annularly arranged on a centering disc; utilize worm gear drive and make worm gear drive press from both sides tight rack to use synchronous carousel drive three worm synchronous rotations, thereby make three press from both sides tight piece and remove the blank with central moving in step, and accomplished the centering of blank when fixed, saved the centering adjustment link of blank, very big simplification the operating procedure, improved the operating efficiency when guaranteeing the precision.
In order to achieve the aim, the invention provides a clamping tool for CNC workpiece machining, which comprises a base box, wherein a centering disc is fixed on the base box;
three radial sliding chutes are uniformly and annularly arranged around the center of the centering disc, and a clamping block is slidably arranged in each radial sliding chute; the three clamping blocks are all positioned on a virtual circumference with the circle center coinciding with the center of the centering disc;
a clamping rack is arranged in each radial sliding groove in a sliding manner; two sides of the clamping rack are respectively provided with a side sliding strip; the inner wall of the radial sliding groove is correspondingly provided with a side sliding groove which is embedded with the side sliding strip in a sliding way;
the top surface of the clamping rack is fixedly connected with the clamping block, and the bottom surface of the clamping rack is meshed with the worm wheel; the worm wheel is in transmission connection with a horizontally arranged worm; one end of the worm is rotatably arranged on the inner wall of the base box, and the other end of the worm is sleeved with the transmission gear;
the worm wheel is clamped between the two worm wheel supporting plates; two ends of a rotating shaft of the worm wheel are respectively and rotatably arranged on the worm wheel supporting plate on the corresponding side;
a synchronous turntable is arranged at the center of the bottom of the base box; a synchronous gear ring is arranged on the synchronous turntable; the synchronous gear ring is in transmission connection with the transmission gear; the synchronous gear ring is also in transmission connection with a driving gear; the driving gear is fixedly sleeved on the driving shaft; the drive shaft rotates and passes through the base box, and the end extending out of the base box is detachably connected with the rotating handle.
According to the clamping tool for CNC workpiece machining, a worm support plate is arranged in the base box; the worm is rotatably connected with the worm supporting plate in a penetrating mode.
According to the clamping tool for CNC workpiece machining, the upper surface and the lower surface of the side sliding strip are respectively provided with the auxiliary sliding strip, and the side sliding groove is provided with the auxiliary sliding groove matched with the auxiliary sliding strip.
According to the clamping tool for CNC workpiece machining, the cross section of the auxiliary slide bar is triangular.
According to the clamping tool for machining the CNC workpiece, one end, extending out of the base box, of the driving shaft is provided with the rectangular jack, and the rotating handle is correspondingly provided with the plug.
According to the clamping tool for CNC workpiece machining, a rotating shaft supporting plate is further arranged in the base box, and the driving shaft penetrates through the rotating shaft supporting plate in a rotating mode.
According to the clamping tool for machining the CNC workpiece, the center of the centering disc is further provided with the avoidance hole.
According to the clamping tool for machining the CNC workpiece, a plurality of mounting holes for fixing the clamping blocks are formed in the clamping rack at equal intervals.
The invention aims to provide a clamping tool for machining a CNC workpiece, wherein three clamping blocks are uniformly and annularly arranged on a centering disc; utilize worm gear drive and make worm gear drive press from both sides tight rack to use synchronous carousel drive three worm synchronous rotations, thereby make three press from both sides tight piece and remove the blank with central moving in step, and accomplished the centering of blank when fixed, saved the centering adjustment link of blank, very big simplification the operating procedure, improved the operating efficiency when guaranteeing the precision.
Drawings
FIG. 1 is a schematic diagram of a prior art configuration;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the structure in the direction A of FIG. 2;
FIG. 4 is a schematic view of the structure of FIG. 3 in the direction B-B;
FIG. 5 is a schematic view of the structure of FIG. 4 in the direction C-C;
FIG. 6 is a schematic view of the structure of FIG. 4 in the direction D;
FIG. 7 is a schematic view of the structure in the direction E-E of FIG. 4;
FIG. 8 is a schematic view of the structure of FIG. 4 in the direction F;
in the figure: 1-a centering disc, 11-a radial sliding chute, 12-a clamping block, 13-an avoidance hole, 14-a clamping rack, 141-a lateral sliding strip and 142-a mounting hole; 2-base box, 21-worm gear, 211-worm gear support plate; 22-worm, 221-drive gear, 222-worm support plate; 23-synchronous turntable, 231-synchronous ring gear; 24-drive gear, 241-drive shaft, 242-turn handle; 25-a spindle support plate; 100-workpiece, 200-bench, 201-fastener.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments, it being understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Referring to fig. 2, the invention provides a clamping tool for CNC workpiece processing, which comprises a base box 2, wherein a centering disc 1 is fixed on the base box 2;
referring to fig. 3, three radial sliding grooves 11 are uniformly and annularly arranged around the center of the centering disc 1, and a clamping block 12 is slidably arranged in each radial sliding groove 11; the three clamping blocks 12 are all positioned on a virtual circumference with the circle center coinciding with the center of the centering disc 1;
the clamping tool of the invention is fixed on a workbench 200 or a rotating disc of a processing device in advance, and the center of the centering disc 1 is adjusted to coincide with the rotating center of the workbench. The clamping fixture can be installed and fixed by a person skilled in the art through a known mode and a known structure.
The blank to be processed is placed on the centering disc 1, and the three clamping blocks 12 move towards the center simultaneously, so that the blank is fixed. Because the centers of the three clamping blocks 12 coincide with the center of the centering disc 1, after the clamping blocks are fixed, the center of the blank coincides with the center of the centering disc 1, namely the center of the blank coincides with the rotation center of the workbench of the processing equipment. The blank is fixed and centered, so that the centering adjustment link of the blank is omitted, the operation steps are greatly simplified, and the operation efficiency is improved while the precision is ensured.
Preferably, the center of the centering disc 1 is further provided with an avoidance hole 13; the tool is interfered when the center hole of the blank is machined on the surface.
Referring to fig. 4, a clamping rack 14 is slidably disposed in each radial sliding slot 11; the top surface of the clamping rack 14 is fixedly connected with the clamping block 12, and the bottom surface is meshed with a worm wheel 21; the worm wheel 21 is in transmission connection with a horizontally arranged worm 22; one end of the worm 22 is rotatably arranged on the inner wall of the base box 2, and the other end of the worm is sleeved with a transmission gear 221;
a synchronous turntable 23 is arranged at the center of the bottom of the base box 2; the synchronous turntable 23 is provided with a synchronous gear ring 231; the synchronous gear ring 231 is in transmission connection with a transmission gear 221;
the synchronous turntable 23 rotates to drive the three worms 22 to rotate at the same speed, so that the three worm wheels 21 rotate at the same speed and in the same direction, and finally the three clamping racks 14 move at the same speed, namely, are close to the center of the centering disc 1 or are far away from the center of the centering disc 1. Thereby realizing the clamping or unclamping action of the three clamping blocks 12.
The worm wheel 21 drives the clamping rack 14 to move to realize clamping. Because worm wheel 21 and worm 22 complex auto-lock effect to when receiving blank to clamping block 12's reaction force, worm wheel 21 can not the reversal, thereby makes clamping block 12 can provide sufficient clamp force, fixes the blank.
Referring to fig. 6, the worm wheel 21 is sandwiched between two worm wheel support plates 211; two ends of the rotating shaft of the worm wheel 21 are respectively and rotatably arranged on the worm wheel supporting plate 211 on one corresponding side; the stability of the rotation of the worm wheel 21 is increased while enabling it to withstand a large clamping reaction force.
Preferably, a worm support plate 222 is arranged in the base box 2; the worm 22 rotatably penetrates through the worm support plate 222; the stability of the rotation of the worm 22 is increased; and simultaneously, the supporting strength of the base box 2 to the centering disc 1 is also increased.
Referring to fig. 5, two sides of the clamping rack 14 are respectively provided with a side slide 141; the inner wall of the radial sliding groove 11 is correspondingly provided with a side sliding groove which is embedded with the side sliding strip 141 in a sliding manner; preferably, the upper and lower surfaces of the side sliding strip 141 are respectively provided with an auxiliary sliding strip, and the side sliding groove is provided with an auxiliary sliding groove matched with the auxiliary sliding strip; the degrees of freedom of the clamping rack 14 in the up, down, left and right directions are restricted so that the clamping rack 14 can move only along the track of the radial chute 11, increasing the accuracy of centering.
Further, the cross-sectional shape of the auxiliary slide bar is triangular.
With reference to fig. 7, the synchronizing ring gear 231 of the synchronizing turntable 23 is also in transmission connection with the driving gear 24; the driving gear 24 is fixedly sleeved on the driving shaft 241; the driving shaft 241 is rotatably connected with the base box 2 in a penetrating way, and one end of the driving shaft extending out of the base box 2 is detachably connected with a rotating handle 242; the operator performs the clamping or unclamping operation by turning the handle 242.
Preferably, a rectangular jack is provided at one end of the driving shaft 241 extending out of the base box 2, and a plug is correspondingly provided on the rotating handle 242. After the tightening or loosening operation is completed, the rotating knob 242 can be removed to avoid interference with the subsequent operations.
Further, a rotating shaft supporting plate 25 is further arranged in the base box 2, and the driving shaft 241 is rotatably connected with the rotating shaft supporting plate 25 in a penetrating manner; the stability of the rotation of the driving shaft 241 is increased.
The clamping rack 14 of the invention drives the clamping block 12 to clamp and fix the blank, so that the clamping rack 14 does not need to have a large reciprocating stroke. The diameter of the centering disk 1 and the position of the clamping rack 14 on the centering disk 1 can be set appropriately by the person skilled in the art depending on the size of the machined blank. So that the clamping rack 14 can realize clamping and unclamping actions under proper strokes.
Referring to fig. 8, preferably, a plurality of mounting holes 142 for fixing the clamping blocks 12 are formed in the clamping rack 14 at equal intervals; the clamping blocks 12 are fixed in suitable mounting holes 142 according to the specific dimensions of the blank to be machined, so that a set of centring disks 1 can be used to machine blanks of various specifications.
In summary, the invention provides a clamping tool for CNC workpiece processing, which is characterized in that three clamping blocks are uniformly and annularly arranged on a centering disc; utilize worm gear drive and make worm gear drive press from both sides tight rack to use synchronous carousel drive three worm synchronous rotations, thereby make three press from both sides tight piece and remove the blank with central moving in step, and accomplished the centering of blank when fixed, saved the centering adjustment link of blank, very big simplification the operating procedure, improved the operating efficiency when guaranteeing the precision.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A clamping tool for CNC workpiece machining is characterized by comprising a base box, wherein a centering disc is fixed on the base box;
three radial sliding chutes are uniformly and annularly arranged around the center of the centering disc, and a clamping block is slidably arranged in each radial sliding chute; the three clamping blocks are all positioned on a virtual circumference with the circle center coinciding with the center of the centering disc;
a clamping rack is arranged in each radial sliding groove in a sliding manner; two sides of the clamping rack are respectively provided with a side sliding strip; the inner wall of the radial sliding groove is correspondingly provided with a side sliding groove which is embedded with the side sliding strip in a sliding way;
the top surface of the clamping rack is fixedly connected with the clamping block, and the bottom surface of the clamping rack is meshed with the worm wheel; the worm wheel is in transmission connection with a horizontally arranged worm; one end of the worm is rotatably arranged on the inner wall of the base box, and the other end of the worm is sleeved with the transmission gear;
the worm wheel is clamped between the two worm wheel supporting plates; two ends of a rotating shaft of the worm wheel are respectively and rotatably arranged on the worm wheel supporting plate on the corresponding side;
a synchronous turntable is arranged at the center of the bottom of the base box; a synchronous gear ring is arranged on the synchronous turntable; the synchronous gear ring is in transmission connection with the transmission gear; the synchronous gear ring is also in transmission connection with a driving gear; the driving gear is fixedly sleeved on the driving shaft; the drive shaft rotates and passes through the base box, and the end extending out of the base box is detachably connected with the rotating handle.
2. The CNC workpiece machining clamping tool of claim 1, wherein a worm support plate is arranged in the base box; the worm is rotatably connected with the worm supporting plate in a penetrating mode.
3. The CNC workpiece machining clamping tool according to claim 1, wherein an auxiliary slide bar is arranged on each of the upper surface and the lower surface of the side slide bar, and the side slide grooves are provided with auxiliary slide grooves matched with the auxiliary slide bars.
4. The CNC workpiece machining clamping tool of claim 3, wherein the cross-sectional shape of the auxiliary slide bar is triangular.
5. The CNC workpiece clamping tool of claim 1, wherein the end of the driving shaft extending out of the base box is provided with a rectangular insertion hole, and the rotating handle is correspondingly provided with a plug.
6. The CNC workpiece machining clamping tool of claim 1, wherein a spindle support plate is further arranged in the base box, and the driving shaft is rotatably connected with the spindle support plate in a penetrating mode.
7. The clamping tool for CNC workpiece machining according to any one of claims 1 to 6, wherein an avoiding hole is further formed in the center of the centering disc.
8. The CNC workpiece machining clamping tool of claim 7, wherein a plurality of mounting holes for fixing the clamping blocks are formed in the clamping rack at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210084643.3A CN114473567A (en) | 2022-01-25 | 2022-01-25 | CNC is centre gripping frock for work piece processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210084643.3A CN114473567A (en) | 2022-01-25 | 2022-01-25 | CNC is centre gripping frock for work piece processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114473567A true CN114473567A (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210084643.3A Pending CN114473567A (en) | 2022-01-25 | 2022-01-25 | CNC is centre gripping frock for work piece processing |
Country Status (1)
| Country | Link |
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| CN (1) | CN114473567A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115157135A (en) * | 2022-06-08 | 2022-10-11 | 季华实验室 | Quick clamping device |
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| CN213135078U (en) * | 2020-09-29 | 2021-05-07 | 陕西工业职业技术学院 | Machine-building anchor clamps |
| CN113103035A (en) * | 2020-05-18 | 2021-07-13 | 浙江金保科技有限公司 | Clamp capable of being rapidly clamped |
| CN113319314A (en) * | 2021-05-31 | 2021-08-31 | 耿新珂 | Novel numerical control lathe collet chuck clamping mechanism |
| CN214444663U (en) * | 2020-10-27 | 2021-10-22 | 新昌县益博机械有限公司 | Frock clamp for drilling machine |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160122962A (en) * | 2015-04-15 | 2016-10-25 | 조왕연 | The structure rotational device of fixing jig for multi-axis processing of CNC machine tool |
| CN105772618A (en) * | 2016-05-10 | 2016-07-20 | 无为县宏喜体育用品有限公司 | Multi-station forging fixture |
| CN209532715U (en) * | 2018-08-22 | 2019-10-25 | 四川大学 | A kind of residual stress detection auxiliary device towards non-ferromagnetic part |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115157135A (en) * | 2022-06-08 | 2022-10-11 | 季华实验室 | Quick clamping device |
| CN115157135B (en) * | 2022-06-08 | 2024-06-04 | 季华实验室 | Quick clamping device |
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Application publication date: 20220513 |