CN114055214A - Multi-station rapid positioning and clamping tool for milling cylindrical crossed workpieces - Google Patents
Multi-station rapid positioning and clamping tool for milling cylindrical crossed workpieces Download PDFInfo
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- CN114055214A CN114055214A CN202111512709.6A CN202111512709A CN114055214A CN 114055214 A CN114055214 A CN 114055214A CN 202111512709 A CN202111512709 A CN 202111512709A CN 114055214 A CN114055214 A CN 114055214A
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- 238000003801 milling Methods 0.000 title claims abstract description 16
- 238000003825 pressing Methods 0.000 claims abstract description 25
- 230000002093 peripheral effect Effects 0.000 claims abstract description 11
- 238000003754 machining Methods 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000002173 cutting fluid Substances 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 241001669679 Eleotris Species 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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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
- 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
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
Abstract
The invention relates to a multi-station rapid positioning and clamping tool for milling cylindrical crossed workpieces, belonging to the field of machining; comprises a bottom plate, a vertical plate, a first arc pillow, a second arc pillow and a pressing plate; the vertical plate is a flat plate vertically fixed on the bottom plate, and a plurality of square grooves with the same size are uniformly distributed at the upper end of the vertical plate along the length direction and used as supports of the short workpiece barrel for positioning the axis of the short workpiece barrel; the first arc pillow and the second arc pillow are the same in structure and are respectively fixed at the lower end and the upper end of the vertical plate, and semicircular grooves are formed in the side walls along the length direction and are respectively used for supporting and positioning the peripheral surfaces of the lower end and the upper end of the long cylinder of the workpiece; the clamp plate is a strip-shaped plate, a through hole is formed in the center of the plate surface of the clamp plate, a plurality of bolts penetrate through the through hole respectively and are screwed into threaded holes of the first arc pillow and the second arc pillow, and the peripheral surfaces of adjacent workpieces are compressed and positioned through two ends of the clamp plate. The invention has high positioning consistency, convenient operation and double promotion of clamping and production efficiency.
Description
Technical Field
The invention belongs to the field of machining, and particularly relates to a multi-station rapid positioning and clamping tool for milling cylindrical crossed workpieces.
Background
With the continuous development of aviation and aerospace industries in China, the demand for military products is increasing, and the improvement of the production efficiency becomes the target of consistent pursuit of various military industries. Taking a cylindrical cross workpiece of a certain key type as an example, as shown in fig. 1, the product is mainly formed by assembling and welding a long cylinder and a short cylinder, and the central axes of the long cylinder and the short cylinder are intersected to form an obtuse angle alpha. The boring and milling process of the part mainly processes the step at the tail part of the long cylinder of the workpiece, the threaded hole and the central hole at the position 2, and the main processing difficulty is that the requirement on the shape and position precision of the product is high, wherein the symmetry of planes at two sides of the step at the tail part of the workpiece relative to the intersection forming plane of the axis of the long cylinder and the axis of the short cylinder is less than 0.03, and the parallelism of the planes at two sides of the step at the tail part is less than 0.03, so that the requirement on the alignment operation of the product is high.
The original processing method of the workpiece is as shown in figure 3, a vertical clamping method is adopted, the workpiece is vertically placed on a boring and milling center workbench, the axis of the short cylinder of the workpiece is adjusted and aligned to be parallel to the Y axis of the processing center, the workpiece is tightly pressed on the workbench by the combination of four sets of pressing plates, pull rods and sizing blocks, and the parallelism of the axis of the short cylinder of the workpiece and the Y axis of the processing center is aligned to be less than 0.01. Then, the circular truncated cone at the tail part of the workpiece is aligned, the alignment error is required to be less than 0.01, and finally, the tail part size is machined. This approach has mainly 3 drawbacks: 1) the central axis of the long cylinder and the central axis of the short cylinder of the workpiece form an obtuse angle, the original processing mode is inconvenient for the alignment of the axes, and the alignment difficulty is higher; 2) the workpiece alignment process is complicated, the product compression process can affect the product alignment precision, repeated adjustment, alignment and compression are often needed, a large amount of time is consumed, and the processing efficiency is affected; 3) the mode of clamping and processing single piece is low in efficiency and is not suitable for batch production mode.
Disclosure of Invention
The technical problem to be solved is as follows:
in order to avoid the defects of the prior art, the invention provides the multi-station rapid positioning and clamping tool for milling the cylindrical crossed workpieces.
The technical scheme of the invention is as follows: the utility model provides a multistation clamping frock of fixing a position fast for cylindric cross work piece mills processing which characterized in that: the device comprises a bottom plate 1, a vertical plate 2, a first arc pillow 3, a second arc pillow 4 and a pressing plate 6, wherein the bottom plate 1 is positioned at the bottom of the tool and is used as a mounting and supporting part for other parts;
the vertical plate 2 is a flat plate vertically fixed on the bottom plate 1, and a plurality of square grooves with the same size are uniformly distributed at the upper end of the vertical plate along the length direction and used as supports of the short workpiece cylinder for positioning the axis of the short workpiece cylinder;
the first arc pillow 3 is a cuboid, a plurality of semicircular grooves are uniformly distributed in one side surface of the cuboid along the length direction, the axial directions of the semicircular grooves are parallel, and threaded holes are formed in the plane between every two adjacent semicircular grooves; the bottom side surface of the first arc pillow 3 is attached to the bottom plate 1, and the opposite surface of the first arc pillow and the semicircular groove is fixed below the plate surface on one side of the vertical plate 2; the semicircular grooves of the first arc pillows 3 are in one-to-one correspondence with the square grooves of the vertical plates 2 and are used for supporting and positioning the peripheral surface of the lower end of the long cylinder of the workpiece;
the second arc sleeper 4 has the same structure as the first arc sleeper 3; the opposite surface of the semicircular groove of the second arc pillow 4 is fixed above the plate surface at one side of the vertical plate 2, and the fixed position is lower than the bottom of the square groove of the vertical plate 2; the semicircular grooves of the second arc pillows 4 are in one-to-one correspondence with the square grooves of the vertical plates 2 and are used for supporting and positioning the peripheral surface of the upper end of the long cylinder of the workpiece;
the pressing plate 6 is a strip-shaped plate, a through hole is formed in the center of the plate surface of the pressing plate, a plurality of bolts penetrate through the through hole respectively and are screwed into threaded holes of the first arc pillow 3 and the second arc pillow 4, and the outer peripheral surfaces of adjacent workpieces are pressed and positioned through two ends of the pressing plate 6.
The further technical scheme of the invention is as follows: the bottom plate 1 is a rectangular flat plate, a plurality of constant-diameter circular through holes are uniformly distributed on the surface of the bottom plate along the length direction, the bottom plate and the workpiece long cylinder are coaxially arranged, the diameter of the bottom plate is smaller than the inner diameter of the long cylinder, and the bottom plate is used as a discharge hole and a lightening hole for cutting fluid and scrap iron during machining.
The further technical scheme of the invention is as follows: and two sides of the short edge of the bottom plate 1 are provided with transverse U-shaped grooves for positioning and clamping the tool on a machining center.
The further technical scheme of the invention is as follows: the plate surface of the vertical plate 2 is provided with lightening holes.
The further technical scheme of the invention is as follows: and a rib plate 5 is fixed between the other side plate surface of the vertical plate 2 and the bottom plate 1 and used for enhancing the strength of the tool and ensuring that the vertical plate 2 is always perpendicular to the bottom plate 1.
The further technical scheme of the invention is as follows: the rib plate 5 is of a right-angled triangle plate-shaped structure, a right-angled part is removed for avoiding a welding seam between the bottom plate 1 and the vertical plate 2, and a rounded triangle hole is formed in the surface of the rib plate 5 and used for reducing weight of the tool.
The further technical scheme of the invention is as follows: the number of the upper square groove of the vertical plate 2 and the number of the upper semicircular grooves of the arc pillows are 4.
The further technical scheme of the invention is as follows: the diameter of the semicircular groove of the first arc pillow 3 is closely matched with the outer diameter of the lower end of the long cylinder, so that the accurate positioning is realized.
The further technical scheme of the invention is as follows: the diameter of the semicircular groove of the second arc pillow 4 is closely matched with the outer diameter of the upper end of the long cylinder, so that the accurate positioning is realized.
The further technical scheme of the invention is as follows: the bolt installed on the pressing plate 6 is a special part, the main body of the bolt is a cylindrical long rod, one end of the bolt is provided with external threads, and the other end of the bolt is an internal hexagonal bolt head with standard specification.
Advantageous effects
The invention has the beneficial effects that:
1) the positioning consistency is high, and the operation is convenient. When the tool is used, a product is vertically placed into the arcs of the first arc plate and the second arc plate, the short cylinder is positioned in the square groove of the vertical plate, and the pressing plate is pressed to clamp the product. The pressing plate, the first arc pillow and the second arc pillow limit the axis of the long cylinder of the workpiece, the bottom plate limits the end face of the long cylinder of the workpiece, the square hole in the vertical plate limits the axis of the end cylinder of the workpiece, and the operation mode is simple and efficient.
2) Clamping and production efficiency are improved. In general, a pressing plate is used for pressing a workpiece, and there are two main ways: firstly, two fastening screw holes or other connecting mechanisms are respectively arranged at two ends of the pressure plate, and force is simultaneously applied to the two ends to press the cylindrical part; and secondly, a cushion block is arranged at one end of the pressure plate, the other end of the pressure plate is contacted with the workpiece, and a pressing force is applied to the workpiece by using a screw or other pressing modes and utilizing the lever principle at a proper position in the middle. According to the invention, four workpieces can be clamped at one time, and when the workpieces are fastened by using the screws, two adjacent workpieces can be mutually used as a cushion block of another workpiece, so that clamping and fastening of two workpieces can be simultaneously completed by using a group of pressing plates, and compared with the situation of clamping one workpiece at one time, the clamping efficiency is improved while the quantity of the clamped workpieces is increased. In actual processing, because the distances of the four arc positions of the arc plate are equal and the distances between the four square holes of the vertical plate are equal, the relative positions and the sizes of the four workpieces are fixed, after one-time tool setting is completed, simultaneous processing of four products can be realized by using program deviation, single alignment is realized by comparing single piece processing, the effective operation ratio of a machine tool is improved, and the processing efficiency is integrally improved.
Drawings
FIG. 1 is a drawing of a machined dimension of a workpiece;
FIG. 2 is a schematic three-dimensional structure of a workpiece;
FIG. 3 is a schematic view of a prior art clamping method;
FIG. 4 is a schematic view of a base plate;
FIG. 5 is a schematic view of a riser;
FIG. 6 is a schematic view of a first arc sleeper;
FIG. 7 is a second arc sleeper diagram;
FIG. 8 is a schematic view of a web;
FIG. 9 is a schematic view of a platen;
FIG. 10 is a schematic view of a screw;
FIG. 11 is a schematic view of the tooling assembly;
FIG. 12 is a schematic view of the tooling assembly;
fig. 13 is a schematic view of a three-dimensional model of tooling assembly.
Description of reference numerals: 1. a base plate; 2. a vertical plate; 3. a first arc pillow; 4. a second arc pillow; 5. a rib plate; 6. pressing a plate; 7, a screw rod; 8. and (5) a workpiece.
Detailed Description
The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Referring to fig. 11-13, the tool of the invention is composed of 7 parts, namely a bottom plate 1, a vertical plate 2, a first arc pillow 3, a second arc pillow 4, a rib plate 5, a pressure plate 6 and a screw 7, and the rapid clamping and positioning of the workpiece are realized through combination.
Referring to fig. 4, the bottom plate 1 is located at the bottom of the tool and used as an installation supporting component of other components for positioning the lower end face of the workpiece; the bottom plate 1 is a rectangular flat plate, an even number of equal-diameter circular through holes are uniformly distributed on the surface of the bottom plate along the length direction, the bottom plate and the long cylinder of the workpiece are coaxially arranged, the diameter of the bottom plate is smaller than the inner diameter of the long cylinder, and the bottom plate is used as a discharge hole and a lightening hole for cutting fluid and scrap iron during machining; and two sides of the short edge of the tool are provided with transverse U-shaped grooves for positioning and clamping the tool on a processing center.
Referring to fig. 5, the vertical plate 2 is a flat plate vertically fixed on the bottom plate 1, a plurality of square grooves with the same size are uniformly distributed on the upper end of the flat plate along the length direction, and the width of each square groove is tightly matched with the short workpiece barrel to be used as a support of the short workpiece barrel and used for positioning the axis of the short workpiece barrel; the surface of the vertical plate 2 is provided with lightening holes. The long bottom edge of the vertical plate 2 is welded with the bottom plate 1.
Referring to fig. 6, the first arc pillow 3 is a cuboid, an even number of semicircular grooves are uniformly distributed on one side surface of the cuboid along the length direction, the axial directions of the semicircular grooves are parallel, and threaded holes are formed in the plane between the adjacent semicircular grooves; the bottom side surface of the first arc pillow 3 is attached to the bottom plate 1, and the opposite surface of the first arc pillow and the semicircular groove is welded below the plate surface on one side of the vertical plate 2; the semicircular grooves of the first arc pillows 3 are in one-to-one correspondence with the square grooves of the vertical plates 2 and are used for supporting and positioning the peripheral surface of the lower end of the long cylinder of the workpiece;
referring to fig. 7, the second arc sleeper 4 has the same structure as the first arc sleeper 3; the opposite surface of the semicircular groove of the second arc sleeper 4 is welded above the plate surface at one side of the vertical plate 2, and the fixed position of the opposite surface is lower than the bottom of the square groove of the vertical plate 2; the semicircular grooves of the second arc pillows 4 are in one-to-one correspondence with the square grooves of the vertical plates 2 and are used for supporting and positioning the peripheral surface of the upper end of the long cylinder of the workpiece;
referring to fig. 8, a rib plate 5 is fixed between the other side plate surface of the vertical plate 2 and the bottom plate 1, and is used for reinforcing the strength of the tool and ensuring that the vertical plate 2 is always perpendicular to the bottom plate 1. The rib plate 5 is of a right-angled triangle plate-shaped structure, right-angled parts are removed for avoiding welding seams between the bottom plate 1 and the vertical plate 2, and a rounded triangle hole is formed in the surface of the rib plate 5 for reducing weight of the tool. The right-angle short side of the rib plate 5 is welded with the bottom plate 1, and the right-angle long side is welded with the vertical plate 2.
Referring to fig. 9, the pressing plate 6 is a strip-shaped plate, a through hole is formed in the center of the plate surface, even number of bolts respectively penetrate through the through hole and are screwed into the threaded holes of the first arc sleeper 3 and the second arc sleeper 4, and the outer peripheral surfaces of adjacent workpieces are pressed and positioned through two ends of the pressing plate 6.
Referring to fig. 10, the bolt mounted on the pressure plate 6 is a special member, and the main body of the special member is a cylindrical long rod, one end of the special member is provided with external threads, and the other end of the special member is a standard internal hexagonal bolt head.
Example (b):
the bottom plate 1 is a cuboid, the length of the bottom plate is 480mm, the width of the bottom plate is 225mm, the height of the bottom plate is 20mm, and four bottom plates are uniformly distributed with the diameter of
The distance between the round holes is 120mm, two U-shaped grooves are arranged on two sides of the short side of the bottom plate, the width of each groove is 18mm, the depth of each groove is 30mm, and the groove opening part is chamfered C2.
A vertical plate 2: the main part is the cuboid, and long 480mm, wide 320mm, high 20mm set up 4 wide 74+ 0.020 mm, dark 55 mm's square groove on one side long edge of riser, and the interval at adjacent groove center is 46mm, and the tank bottom is R5mm fillet. The middle of the vertical plate is two
The circular hole of (a). The long edge without the groove on the vertical plate 2 is welded with the bottom plate.
First arc pillow 3: the main body of the first arc pillow 3 is a cuboid with the length of 480mm, the width of 40mm and the height of 45mm, one side of the first arc plate 3 is provided with four semicircular grooves with the diameter of
The center distance between adjacent semicircular grooves is 120mm, and M12-6H threads at the 1 st position and the 30mm depth are respectively processed in the middle of the 2 nd boss and the 3 rd boss which are formed by the semicircular grooves. And welding the first arc pillow 3 in the middle of the vertical plate, wherein the distance between the first arc pillow 3 and the bottom plate 1 is 205 mm.
Second arc pillow 4: the main body of the second arc pillow 4 is a cuboid,480mm long, 40mm wide and 55mm high, and one side of the first arc plate 3 is provided with four semicircular grooves with the diameter of
The center distance between adjacent semicircular grooves is 120mm, and M12-6H threads at the 1 st position and the 30mm depth are respectively processed in the middle of the 2 nd boss and the 3 rd boss which are formed by the semicircular grooves. And welding the second arc pillow 4 close to the bottom plate 1 at the bottom of the vertical plate.
Rib plate 5: the gusset 5 is the right angle triangle platelike structure that thickness is 20mm, and two right-angle sides are long 250mm, 95mm respectively to at the right angle department chamfer of falling C10mm, set up fillet triangle-shaped hole in the middle of the gusset, each limit of interior triangle-shaped is 15mm with the distance on each limit of outer triangle-shaped, the fillet is R10mm, the short right-angle side and the bottom plate welded connection of gusset, long right-angle side and riser welded connection.
Pressing a plate 6: the whole body is a cuboid square block with the length of 150mm, the width of 45mm and the height of 12mm, and a position is arranged at the center
And orifice chamfer C1 mm.
And in the screw 7, the total length of the screw 7 is 90mm, one end of the screw is provided with M12-6h threads, the effective length of the threads is more than 35, and the other end of the screw is provided with an inner hexagonal bolt head with the standard specification of M12-6 h.
The tool comprises 1 bottom plate 1, a vertical plate 2, 1 first arc pillow 3, 1 second arc pillow 4, a rib plate 52, a pressing plate 6 and 4 screw rods 7. The bottom plate 1, the vertical plate 2, the first arc sleeper 3, the second arc sleeper 4 and the rib plates 5 are iron castings, the pressure plate 6 and the screw 7 are quenched and tempered 45# steel pieces, and the quenched and tempered hardness is HRC 28-32.
Assembling: firstly, welding a vertical plate 2 in the middle of a bottom plate 1; secondly, welding the short right-angle edge of 2 pieces of rib plates 5 with the bottom plate 1, and welding the long right-angle edge with the vertical plate; welding a second arc pillow 4 in the middle of the vertical plate 2, wherein the distance between the second arc pillow 4 and the bottom plate 1 is 205 mm; fourthly, the first arc pillow 3 is tightly attached to the bottom plate 1 and welded at the bottom of the vertical plate 2. And the assembly of the tool main body is completed.
When a product is processed, firstly, an assembled tool is placed at a proper position of a machining center workbench, a long edge of a vertical plate is aligned to be parallel to an X axis of the machining center, the tool is pressed tightly at a U-shaped groove of a bottom plate through bolts, four workpieces are vertically placed into four semicircular grooves of a first arc pillow 3 and a second arc pillow 4 respectively, a short cylinder of the workpiece is placed in a square groove of the vertical plate 2, four workpieces 8 are pressed tightly through four pressing plates 6 and four bolts respectively, and a clamping process is completed. The milling of four workpieces can be completed at one time only by aligning the circular truncated cone at the tail of one workpiece and utilizing equidistant offset processing.
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 in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (10)
1. The utility model provides a multistation clamping frock of fixing a position fast for cylindric cross work piece mills processing which characterized in that: the tool comprises a bottom plate (1), a vertical plate (2), a first arc pillow (3), a second arc pillow (4) and a pressing plate (6), wherein the bottom plate (1) is positioned at the bottom of the tool and is used as an installation supporting part of other parts;
the vertical plate (2) is a flat plate vertically fixed on the bottom plate (1), and a plurality of square grooves with the same size are uniformly distributed at the upper end of the vertical plate along the length direction and used as supports of the short workpiece cylinder for positioning the axis of the short workpiece cylinder;
the first arc pillow (3) is a cuboid, a plurality of semicircular grooves are uniformly distributed in one side surface of the cuboid along the length direction, the axial directions of the semicircular grooves are parallel, and threaded holes are formed in the plane between every two adjacent semicircular grooves; the bottom side surface of the first arc pillow (3) is attached to the bottom plate (1), and the opposite surface of the first arc pillow and the semicircular groove is fixed below the surface of one side of the vertical plate (2); the semicircular grooves of the first arc pillows (3) are in one-to-one correspondence with the square grooves of the vertical plates (2) and are used for supporting and positioning the peripheral surface of the lower end of the long workpiece cylinder;
the second arc pillow (4) has the same structure as the first arc pillow (3); the opposite surface of the semicircular groove of the second arc pillow (4) is fixed above the plate surface on one side of the vertical plate (2), and the fixed position is lower than the bottom of the square groove of the vertical plate (2); the semicircular grooves of the second arc pillows (4) are in one-to-one correspondence with the square grooves of the vertical plates (2) and are used for supporting and positioning the peripheral surface of the upper end of the long workpiece cylinder;
the pressing plate (6) is a strip-shaped plate, a through hole is formed in the center of the plate surface of the pressing plate, a plurality of bolts penetrate through the through hole respectively and are screwed into threaded holes of the first arc pillow (3) and the second arc pillow (4), and the outer peripheral surfaces of adjacent workpieces are pressed and positioned through two ends of the pressing plate (6).
2. The multi-station rapid positioning and clamping tool for milling of the cylindrical cross workpiece as claimed in claim 1, is characterized in that: the bottom plate (1) is a rectangular flat plate, a plurality of constant-diameter circular through holes are uniformly distributed on the surface of the bottom plate along the length direction, the bottom plate and the workpiece long cylinder are coaxially arranged, the diameter of the bottom plate is smaller than the inner diameter of the long cylinder, and the bottom plate is used as a discharge hole and a lightening hole for cutting fluid and scrap iron during machining.
3. The multi-station rapid positioning and clamping tool for milling of the cylindrical cross workpiece as claimed in claim 1, is characterized in that: and two sides of the short edge of the bottom plate (1) are provided with transverse U-shaped grooves for positioning and clamping the tool on a machining center.
4. The multi-station rapid positioning and clamping tool for milling of the cylindrical cross workpiece as claimed in claim 1, is characterized in that: the plate surface of the vertical plate (2) is provided with lightening holes.
5. The multi-station rapid positioning and clamping tool for milling of the cylindrical cross workpiece as claimed in claim 1, is characterized in that: and a rib plate (5)3 is fixed between the other side plate surface of the vertical plate (2) and the bottom plate (1) and used for enhancing the strength of the tool and ensuring that the vertical plate (2) is always vertical to the bottom plate (1).
6. The multi-station rapid positioning and clamping tool for milling of the cylindrical cross workpiece as claimed in claim 1, is characterized in that: the rib plate (5)3 is of a right-angled triangle plate-shaped structure, a right-angled part is removed for avoiding a welding seam between the bottom plate (1) and the vertical plate (2), and a rounded triangle hole is formed in the surface of the rib plate (5)3 and used for reducing weight of the tool.
7. The multi-station rapid positioning and clamping tool for milling of the cylindrical cross workpiece as claimed in claim 1, is characterized in that: the number of the upper square groove and the number of the upper semicircular grooves of the arc pillows of the vertical plates (2) are 4.
8. The multi-station rapid positioning and clamping tool for milling of the cylindrical cross workpiece as claimed in claim 1, is characterized in that: the diameter of the semicircular groove of the first arc pillow (3) is tightly matched with the outer diameter of the lower end of the long cylinder, so that accurate positioning is realized.
9. The multi-station rapid positioning and clamping tool for milling of the cylindrical cross workpiece as claimed in claim 1, is characterized in that: the diameter of the semicircular groove of the second arc pillow (4) is tightly matched with the outer diameter of the upper end of the long cylinder, so that the accurate positioning is realized.
10. The multi-station rapid positioning and clamping tool for milling of the cylindrical cross workpiece as claimed in claim 1, is characterized in that: the bolt installed on the pressing plate (6) is a special part, the main body of the bolt is a cylindrical long rod, one end of the bolt is provided with external threads, and the other end of the bolt is an internal hexagonal bolt head with a standard specification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111512709.6A CN114055214A (en) | 2021-12-11 | 2021-12-11 | Multi-station rapid positioning and clamping tool for milling cylindrical crossed workpieces |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111512709.6A CN114055214A (en) | 2021-12-11 | 2021-12-11 | Multi-station rapid positioning and clamping tool for milling cylindrical crossed workpieces |
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2021
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Application publication date: 20220218 |