CN107398758B - Positioning and clamping tool - Google Patents
Positioning and clamping tool Download PDFInfo
- Publication number
- CN107398758B CN107398758B CN201710799852.5A CN201710799852A CN107398758B CN 107398758 B CN107398758 B CN 107398758B CN 201710799852 A CN201710799852 A CN 201710799852A CN 107398758 B CN107398758 B CN 107398758B
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- positioning
- clamping
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- clamping plate
- plate
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- 238000003754 machining Methods 0.000 abstract description 9
- 230000000149 penetrating effect Effects 0.000 abstract description 7
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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
Abstract
The invention discloses a positioning and clamping tool, which relates to the technical field of machining equipment and comprises a clamping plate, wherein a plurality of positioning holes are arranged on the horizontal central axis of the clamping plate, each positioning hole is a threaded hole, a positioning bolt is arranged in a threaded manner in each positioning hole, and the part of a screw rod of each positioning bolt penetrating out of the upper surface of the clamping plate is processed into a positioning pin matched with a positioning pin hole on a blank to be clamped; the clamping plate is provided with a plurality of clamping holes matched with the fixing holes in the blank, and the blank can be clamped on the clamping plate through a fastener. The positioning and clamping tool solves the technical problems of low positioning precision, low clamping efficiency and the like of blank clamping in the prior art, can realize quick precise positioning of the front side and the back side, realizes single-piece or batch processing, and has high positioning precision and high clamping efficiency.
Description
Technical Field
The invention relates to the technical field of machining equipment, in particular to a tool for positioning and clamping blanks.
Background
The machining refers to a technological process of changing the appearance, the size or the performance of a workpiece through mechanical equipment, and the numerical control machine tool is the most applicable mechanical equipment in the field of machining and can be used for machining parts of various products.
When a numerical control machine tool is used for processing blanks, the blanks to be processed need to be clamped and positioned. At present, in the machining industry, clamping tools such as pressing plates or vices are mainly used for clamping blanks, and the clamping tools have the following defects:
before machining, the alignment in the pulling meter is needed, quick clamping alignment of various blanks with different specifications cannot be achieved, especially under the conditions that the front and back surfaces of the blanks are required to be machined and the position accuracy requirements for machining are very high, precise positioning cannot be achieved quickly, positioning accuracy is low, and clamping efficiency is low.
Disclosure of Invention
Aiming at the defects, the invention aims to provide a positioning and clamping tool which does not need to be aligned in a pull meter, has high clamping speed and high positioning precision, can greatly improve the production efficiency and improves the degree of automation.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the positioning and clamping tool comprises a clamping plate, wherein a plurality of positioning holes are arranged on the horizontal central axis of the clamping plate, each positioning hole is a threaded hole, a positioning bolt is arranged in a threaded manner in each positioning hole, and the part of a screw rod of each positioning bolt penetrating out of the upper surface of the clamping plate is processed into a positioning pin matched with a positioning pin hole on a blank to be clamped; the clamping plate is provided with a plurality of clamping holes matched with the fixing holes in the blank, and the blank can be clamped on the clamping plate through a fastener.
The X-axis central axis and the Y-axis central axis of the clamping plate are respectively provided with the positioning holes, and the positioning holes are symmetrically distributed relative to the intersection point of the X-axis central axis and the Y-axis central axis.
The clamping plate is provided with a plurality of grooves at the positions which are not provided with the positioning holes and the clamping holes.
Wherein, each recess sets up respectively in X axle central axis and the both sides of y axle central axis.
The clamping plate is divided into four areas by the grooves, and the clamping holes are distributed in the four areas.
The clamping holes in two adjacent areas are symmetrically distributed relative to the x-axis central axis or the y-axis central axis respectively.
The positioning holes are countersunk holes, one end with larger aperture is arranged below, and one end with smaller aperture is arranged above.
The clamping holes are threaded holes, and the blanks can be clamped on the clamping plates through clamping bolts.
The mounting seat comprises a bottom plate and a supporting plate, wherein the bottom plate is arranged parallel to the clamping plate, the supporting plate is vertically fixed between the clamping plate and the bottom plate, and the supporting plate is arranged at two opposite side edge positions of the clamping plate.
The clamping plate, the supporting plate and the bottom plate are respectively provided with a clamping plate mounting hole, a supporting plate mounting hole and a bottom plate mounting hole at corresponding positions, the clamping plate mounting holes, the supporting plate mounting holes and the bottom plate mounting holes are threaded holes, the bottom plate mounting holes are countersunk holes, and the clamping plate, the supporting plate and the bottom plate are assembled into a whole through the mounting studs.
After the technical scheme is adopted, the invention has the beneficial effects that:
the positioning and clamping tool comprises a clamping plate, wherein a plurality of positioning holes are arranged on the horizontal central axis of the clamping plate, each positioning hole is symmetrically distributed relative to the center of the horizontal central axis, each positioning hole is a threaded hole, a positioning bolt is arranged on the screw thread of each positioning hole, and the part of the screw rod of each positioning bolt penetrating out of the upper surface of the clamping plate is processed into a positioning pin matched with a positioning pin hole on a blank to be clamped; the clamping plate is provided with a plurality of clamping holes matched with the fixing holes on the blank, and the blank can be clamped on the clamping plate through the fastening pieces. When the blank is clamped, two positioning holes are selected on the clamping plate only according to the size of the blank, two positioning bolts are respectively arranged in the two positioning holes from bottom to top, the parts, penetrating out of the upper surface of the clamping plate, of the positioning bolts are processed into positioning pins through a machine tool, the blank is positioned on the clamping plate through the matching of the positioning pins and the positioning pin holes, and then the blank is fixed on the clamping plate through a fastener. After the blank is clamped, the coordinate system is only required to be fixed at the middle positions of the two positioning pins, the alignment in the pulling table is not required, the blank can be continuously used after being split once, the blank is not required to be split again when the blank is replaced or the back of the blank is processed, the blank clamping speed is greatly improved, and the clamping efficiency is high. Meanwhile, the positioning bolt is in threaded fit with the positioning hole, gaps cannot exist between the positioning bolt and the positioning hole, the combination is firm, the positioning accuracy is higher, the positioning accuracy of blanks needing to be processed on the front side and the back side can be ensured, and the blanks with the same specification only need to be processed for one time at first to process the positioning pin, so that the positioning bolt can be continuously used.
In summary, the positioning and clamping tool solves the technical problems of low positioning precision, low clamping efficiency and the like of blank clamping in the prior art, and can realize rapid accurate positioning of the front side and the back side, single-piece or batch processing, and has high positioning precision and high clamping efficiency.
Drawings
FIG. 1 is a schematic diagram of an exploded structure of a positioning and clamping tool of the present invention;
FIG. 2 is a combination diagram of FIG. 1;
FIG. 3 is a schematic view of the construction of the positioning bolt of FIG. 1 prior to being machined;
FIG. 4 is a schematic view of the construction of the positioning bolt of FIG. 1;
FIG. 5 is a schematic view of the structure of the clamping plate of FIG. 1;
in the figure: 10. the bottom plate, 100, the bottom plate mounting hole, 12, the backup pad, 120, the backup pad mounting hole, 14, the mounting bolt, 20, the clamping plate, 22, the clamping plate mounting hole, 24, the locating hole, 26, the clamping hole, 28, the groove, 30, the locating bolt, 30', the locating bolt, 32, the nut, 34, the screw, 36, the locating pin, 40, the clamping bolt, 50, the blank, 52, the fixing hole, 54, the locating pin hole.
Detailed Description
The invention is further illustrated in the following, in conjunction with the accompanying drawings and examples.
The orientations referred to in the present specification are all relative positional relationships, and do not represent absolute positional relationships, and are shown in the drawings.
As shown in fig. 1, fig. 2 and fig. 4 together, a positioning and clamping tool comprises a clamping plate 20 installed on a numerical control machine tool, a plurality of positioning holes 24 are arranged on the horizontal central axis of the clamping plate 20, each positioning hole 24 is a threaded through hole penetrating through the clamping plate 20 up and down, a positioning bolt 30 can be installed in each positioning hole 24 in a threaded manner, the part, penetrating out of the upper surface of the clamping plate 20, of the positioning bolt 30 is processed into a positioning pin 36 through the numerical control machine tool, and the positioning pin 36 is matched with a positioning pin hole 54 on a blank 50. The clamping plate 20 is also provided with a plurality of clamping holes 26 matched with the fixing holes 52 on the blank 50, and the blank 50 can be clamped on the clamping plate 20 through fasteners passing through the fixing holes 52 and the clamping holes 26 at the same time.
As shown in fig. 1, 2 and 5, the horizontal central axis of the clamping plate 20 in this embodiment includes an x-axis central axis and a y-axis central axis, and the positioning holes 24 are preferably arranged on both the x-axis central axis and the y-axis central axis in this embodiment. It is further preferred that a plurality of positioning holes 24 are arranged on both sides of the center point of the x-axis center axis and the center point of the y-axis center axis, and the positioning holes 24 on both sides of the center point of the x-axis center axis and the center point of the y-axis center axis are symmetrically arranged with respect to the center point of the corresponding axis, that is, each positioning hole 24 is symmetrically distributed with respect to the intersection point of the x-axis center axis and the y-axis center axis. The design that a plurality of locating holes 24 are arranged on two sides of the middle point of the central axis of the x axis and the central axis of the y axis can facilitate the clamping of blanks 50 with different specifications, and the universality is higher.
As shown in fig. 2, 3, 4 and 5, the positioning hole 24 is a countersunk hole, the end with larger aperture is downward, the end with smaller aperture is upward, and the hole with smaller aperture is a threaded hole. The positioning bolt 30 comprises a nut 32 and a screw 34, wherein the nut 32 is positioned in a large hole of the countersink, the screw 34 penetrates through a small hole of the countersink, the end part of the screw is exposed out of the upper surface of the clamping plate 20, and the screw is processed into a positioning pin 36 through a numerical control machine tool. The locating hole 24 adopts the screw hole, and the locating pin 36 is processed through the locating bolt 30 with screw hole threaded connection, and this kind of screw thread complex structure makes there is not the clearance between locating bolt 30 and the locating hole 24, combines closely, can not appear mutual position change to the position of locating pin 36 can not change when changing blank 50 or carrying out blank 50 turn-over, can guarantee the precision of location, especially can guarantee the positive and negative both sides processing and all have the positioning accuracy of the blank of very high position accuracy requirement. The position and the size of the positioning pin 36 can be flexibly changed, the positioning pin can be processed by the same numerical control machine tool and can be matched with the positioning pin holes on blanks with different specifications, the size and the position of the positioning pin holes on the blanks can be flexibly changed, the positioning pin holes are not limited to one fixed position or fixed aperture, and the universality is higher.
As shown in fig. 1, fig. 2 and fig. 5 together, the upper surface of the clamping plate 20, which is not provided with the positioning holes 24 and the clamping holes 26, is also provided with a plurality of grooves 28, and the arrangement of the grooves 28 can reduce the contact area between the blank 50 and the clamping plate 20, so that the surface of the blank 50 is easier to level when not flat, and the clamping and fixing of the blank 50 are facilitated. In this embodiment, the grooves 28 are preferably four, the four grooves 28 are respectively disposed on two sides of the x-axis central axis and the y-axis central axis, that is, the positioning holes 24 are sandwiched between the two grooves 28 disposed in parallel, and four ribs are formed on the surface of the clamping plate 20 at the positions where the positioning holes 24 are disposed. The four grooves 28 form a crisscross structure, dividing the plate surface of the entire clamping plate 20 into four areas, and the clamping holes 26 are respectively located in the four areas and are distributed in the four areas. In this embodiment, the clamping holes 26 located in two adjacent regions are preferably symmetrically distributed with respect to the x-axis central axis or the y-axis central axis, so that the blanks 50 with different specifications can be conveniently clamped, and the universality is higher.
As shown in fig. 1, 2 and 5 together, in this embodiment, the clamping hole 26 is preferably a threaded hole, and penetrates through the clamping plate 20 up and down, and the blank 50 can be clamped onto the clamping plate 20 by the clamping bolt 40, so that the clamping manner is more convenient and quick, and the fixing is firmer.
As shown in fig. 1 and 2 together, the clamping plate 20 in this embodiment is mounted on the numerical control machine tool through a mounting seat, and the mounting seat is provided below the clamping plate 20. The mounting seat comprises a bottom plate 10 which is arranged in parallel with a clamping plate 20 up and down, the bottom plate 10 and the clamping plate 20 are connected into a whole through a vertically arranged supporting plate 12, two supporting plates 12 are arranged, and the two supporting plates 12 are respectively arranged at two opposite side edge positions of the clamping plate 20. The arrangement of the support plate 12 below the clamping plate 20 leaves room for installing and replacing the positioning bolts 30. The opposite positions of the clamping plate 20, the supporting plate 12 and the bottom plate 10 are respectively provided with a vertically penetrating clamping plate mounting hole 22, a supporting plate mounting hole 120 and a bottom plate mounting hole 100, the clamping plate mounting hole 22, the supporting plate mounting hole 120 and the bottom plate mounting hole 100 are threaded holes, the bottom plate mounting hole 100 is a countersunk hole, one end with a larger aperture is arranged below, one end with a smaller aperture is arranged above, and the clamping plate 20, the supporting plate 12 and the bottom plate 10 are assembled into a whole through mounting bolts 14 which sequentially penetrate through the bottom plate mounting hole 100, the supporting plate mounting hole 120 and the clamping plate mounting hole 22 through threads. The mounting seat is fixed on the numerical control machine tool.
The positioning and clamping tool can be suitable for clamping and fixing blanks processed in single piece or batch in different specifications, and the specific operation flow is as follows:
as shown in fig. 1, 2, 3 and 4, before the first blank 50 is clamped, two positioning holes 24 with matched intervals are selected according to the intervals between two positioning pin holes 54 on the blank 50, two positioning bolts 30 'are respectively installed in the two positioning holes 24, and then positioning pins 36 matched with corresponding positioning pin holes 54 are respectively machined on the two positioning bolts 30' according to the apertures of the two positioning pin holes 54, wherein the two positioning pins 36 can be identical in size or different in size, can be conveniently matched with various blanks 50, and can be conveniently matched with various blanks in batch production, and the positioning pins 36 only need one-time machining. After the positioning pin 36 is processed, the positioning pin hole 54 of the blank 50 is aligned with the positioning pin 36, the blank 50 is positioned on the clamping plate 20, and then the clamping bolt 40 is used for fixing the blank 50 on the clamping plate 10, so that the clamping is completed. After clamping is completed, the coordinate system is fixed at the midpoint position between the two positioning pins 36, namely, centering is realized, the pulling of the gauge is not needed, the gauge can be continuously used after centering for the first time, centering is not needed for the second time when the blank is replaced or the back surface is processed, the two positioning holes 24 which are preferably symmetrically arranged relative to the midpoint of the axis are preferably selected when the positioning holes 24 are selected, the center of the clamping plate 20 is the centering position, the coordinate system is only needed to be fixed at the midpoint of the clamping plate 20, centering is not needed again even if blanks with different specifications are replaced later, and clamping efficiency can be further improved.
According to the operation flow, the positioning and clamping tool does not need to be aligned in the pull meter, and does not need to be split again after one-time splitting, so that the positioning and clamping tool is high in clamping speed, high in positioning accuracy and high in universality, production efficiency can be greatly improved, and automation degree is improved.
The present invention is not limited to the above-described specific embodiments, and various modifications may be made by those skilled in the art without inventive effort from the above-described concepts, and are within the scope of the present invention.
Claims (5)
1. The positioning and clamping tool is characterized by comprising a clamping plate,
a plurality of positioning holes are arranged on the horizontal central axis of the clamping plate, each positioning hole is a threaded hole, a positioning bolt is arranged in each positioning hole in a threaded manner, and the part of the screw rod of each positioning bolt, which penetrates out of the upper surface of the clamping plate, is processed into a positioning pin matched with the positioning pin hole on the blank to be clamped;
the clamping plate is provided with a plurality of clamping holes matched with the fixing holes on the blank, and the blank can be clamped on the clamping plate through a fastener;
the positioning holes are arranged on the x-axis central axis and the y-axis central axis of the clamping plate, and the positioning holes are symmetrically distributed relative to the intersection point of the x-axis central axis and the y-axis central axis;
the clamping plate is provided with a plurality of grooves at the positions which are not provided with the positioning holes and the clamping holes, and the grooves are respectively arranged at two sides of the central axis of the x-axis and the central axis of the y-axis; each groove divides the clamping plate into four areas, and the clamping holes are distributed in the four areas; the clamping holes in two adjacent areas are symmetrically distributed relative to the central axis of the x axis or the central axis of the y axis respectively.
2. The positioning and clamping tool according to claim 1, wherein the positioning hole is a countersunk hole, the end with the larger aperture is arranged below, and the end with the smaller aperture is arranged above.
3. The positioning and clamping tool according to claim 1, wherein the clamping holes are threaded holes, and the blank can be clamped to the clamping plate through clamping bolts.
4. A positioning and clamping tool according to any one of claims 1 to 3, wherein a mounting seat is arranged below the clamping plate, the mounting seat comprises a bottom plate arranged parallel to the clamping plate and a supporting plate vertically fixed between the clamping plate and the bottom plate, and the supporting plate is arranged at two opposite side edge positions of the clamping plate.
5. The positioning and clamping tool according to claim 4, wherein clamping plate mounting holes, support plate mounting holes and bottom plate mounting holes are respectively formed in corresponding positions on the clamping plate, the support plate and the bottom plate, the clamping plate mounting holes, the support plate mounting holes and the bottom plate mounting holes are threaded holes, the bottom plate mounting holes are countersunk holes, and the clamping plate, the support plate and the bottom plate are assembled into a whole through mounting studs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710799852.5A CN107398758B (en) | 2017-09-07 | 2017-09-07 | Positioning and clamping tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710799852.5A CN107398758B (en) | 2017-09-07 | 2017-09-07 | Positioning and clamping tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107398758A CN107398758A (en) | 2017-11-28 |
| CN107398758B true CN107398758B (en) | 2023-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710799852.5A Active CN107398758B (en) | 2017-09-07 | 2017-09-07 | Positioning and clamping tool |
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| CN (1) | CN107398758B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352389A (en) * | 2018-12-07 | 2019-02-19 | 江西洪都航空工业集团有限责任公司 | A kind of hydraulic quick-clamping system |
| CN109454476A (en) * | 2018-12-16 | 2019-03-12 | 广东星联精密机械有限公司 | A kind of positioning tool of five-axis robot bottle blowing mould back side damping trough |
| CN111376284A (en) * | 2018-12-29 | 2020-07-07 | 江苏鲁汶仪器有限公司 | Manipulator and mechanical finger thereof |
| CN111451690B (en) * | 2020-04-26 | 2023-04-18 | 遵义宏港机械有限公司 | Power supply frame clamping device and using method thereof |
| CN112476236A (en) * | 2020-11-12 | 2021-03-12 | 力源液压（苏州）有限公司 | Floating hinge honing hole machining clamp and using method |
| CN114800046A (en) * | 2021-01-27 | 2022-07-29 | 一汽-大众汽车有限公司 | Rapid system establishing method for finished automobile model machining coordinate system |
| CN113400051B (en) * | 2021-06-28 | 2023-01-31 | 江苏集萃精凯高端装备技术有限公司 | Milling method |
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| CN101870004A (en) * | 2010-06-08 | 2010-10-27 | 优德精密工业(昆山)有限公司 | Fixture for batch processing of inflating model fixing seat |
| CA2811915A1 (en) * | 2010-09-30 | 2012-04-05 | Fcs System Srl | Modular structure for supporting blanks |
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Also Published As
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| CN107398758A (en) | 2017-11-28 |
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