CN115446634A

CN115446634A - Anchor clamps that annular thin wall part turning was used

Info

Publication number: CN115446634A
Application number: CN202211113873.4A
Authority: CN
Inventors: 吴宏疆
Original assignee: Nantong Tengqian Automation Technology Co ltd
Current assignee: Nantong Tengqian Automation Technology Co ltd
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2022-12-09

Abstract

The invention discloses a clamp for turning an annular thin-walled part, which comprises a hydraulic cylinder, wherein an assembling rod is sleeved on the surface of the hydraulic cylinder, and the front end of the hydraulic cylinder is fixedly connected with a screw rod. This anchor clamps of annular thin wall part turning usefulness, the effective area of contact of expansion board inside and outside wall and air has been enlarged, the natural flow of usable air current, carry out the natural heat dissipation cooling to the expansion board, also can pass through the arc seam input expansion board inboard with the cutting fluid, assist the heat dissipation cooling, the heat dissipation form is nimble changeable, can realize the syllogic inflation of inflation portion, and then can carry out the centre gripping location simultaneously to the part of three kinds of models, can carry out spacing protection to the maximum expansion range of expansion board, avoid excessive inflation and damage the expansion board, the unable timely radiating drawback of part of expansion board when solving the processing part, need not to wholly change expansion mechanism, reduce the waste of resource.

Description

Anchor clamps that annular thin wall part turning was used

Technical Field

The invention relates to the technical field of part turning, in particular to a clamp for turning an annular thin-wall part.

Background

Turning refers to lathe machining and is a part of machining, turning is mainly carried out on a workpiece rotating by a lathe tool, the lathe is mainly used for machining shafts, discs, sleeves and other revolving or non-revolving workpieces with revolving surfaces, the lathe is the most widely used machine tool machining in a mechanical manufacturing and repairing factory, and no proper clamp is used for positioning parts in the turning process of annular thin-wall parts at present, so that certain machining errors exist in part of the parts, and the part with a special structure, namely the annular thin-wall part, needs to be positioned and clamped at present, and production and machining quality of the part is improved conveniently.

The existing clamp for turning the annular thin-wall part mostly carries out full-contact expansion clamping on the annular thin-wall part, so that the heat dissipation area is reduced, the normal operation of cutting is not facilitated, only a single type of annular thin-wall part can be clamped and positioned, and a protection mechanism for preventing over expansion is not provided.

Disclosure of Invention

In order to solve the technical problem, the invention provides a clamp for turning an annular thin-wall part, which comprises a hydraulic cylinder, wherein an assembling rod is sleeved on the surface of the hydraulic cylinder, the front end of the hydraulic cylinder is fixedly connected with a lead screw, a butt joint assembly is arranged at the front end of the hydraulic cylinder, an expansion mechanism is arranged at the front end of the butt joint assembly, a plurality of inner expansion plates are arranged on the inner side of the expansion mechanism in a circular array, an inner push rod piece and a nut are arranged in the middle of the inner side of the expansion mechanism, the nut is arranged on the outer side of the expansion mechanism, and parts are arranged on the surface of the expansion mechanism.

Preferably, the front end fixedly connected with intubate of equipment pole, intubate fixed surface is connected with two sets of card strips hydraulic cylinder passes through intubate and equipment pole composite set.

Preferably, the butt joint component comprises a neck pipe, the surface of the neck pipe is connected with a plurality of connecting blocks in a circular array mode, an external thread sleeve is arranged on each connecting block, and a plurality of arc-shaped seams are formed between the external thread sleeve and the neck pipe.

Preferably, the neck pipe is internally provided with a through hole, the inner wall surface of the neck pipe is provided with a clamping groove, the clamping groove is matched with the clamping strip correspondingly, the insertion pipe is inserted into and installed on the neck pipe through the through hole, the insertion pipe is fixedly installed with the neck pipe in a clamping mode through the matching of the clamping groove and the clamping strip, and the neck pipe is installed with the assembling rod in a combined mode through the through hole and the matching of the insertion pipe.

Preferably, the external thread sleeve is connected with the neck pipe through a connecting block to form a whole, and the hydraulic cylinder and the screw rod are arranged in a penetrating mode through the through hole and the neck pipe.

Preferably, expansion mechanism includes the expansion board, the inside cavity of having seted up of expansion board, a plurality of expansion grooves have been seted up to expansion board surface circular array, the one end fixedly connected with thickened ring that the expansion board is close to the external screw thread cover, a plurality of guide chambeies have been seted up to expansion inboard wall, the one end that the expansion board was kept away from to thickened ring has seted up the screw thread chamber.

Preferably, the expansion plate is installed through threaded cavity cooperation external screw thread cover and neck pipe screw thread on the thickening ring, just the one end that the thickening ring was kept away from to the expansion plate is equipped with three expansion portions of group, and the radius of three expansion portions diminishes in proper order, the expansion groove runs through the expansion plate and is linked together with the cavity, the guide chamber is linked together with the cavity, interior bloated board is through guide chamber and expansion plate aggregate erection.

Preferably, the inner push rod piece comprises a first expansion rod, a second expansion rod is fixedly connected to the near end of the first expansion rod, a third expansion rod is fixedly connected to the near end of the second expansion rod, and a guide head is fixedly connected to the near end of the third expansion rod.

Preferably, the radiuses of the first expansion rod, the second expansion rod and the third expansion rod are reduced in sequence, the first expansion rod, the second expansion rod and the third expansion rod are round-table-shaped in appearance, the guide head is used for guiding the third expansion rod to be inserted into an annular structure defined by the plurality of inner expansion plates, the far end of the first expansion rod is installed with the hydraulic cylinder through a screw rod in a threaded mode, and the first expansion rod is installed with the expansion plate in a telescopic mode through the hydraulic cylinder.

Preferably, one side of interior bloated board is hugged closely the setting of expansion plate inner wall through the guide chamber, just interior bloated board opposite side is by the back to preceding three inflation gradient that is equipped with in proper order, three inflation gradient by the back to preceding respectively with the corresponding cooperation of first expander roll, second expander roll, third expander roll, the nut is established the installation through expansion plate and the expansion portion cover of maximum diameter, just the part cover is established and is installed on expansion plate.

The invention provides a clamp for turning an annular thin-walled part. The method has the following beneficial effects:

1. this anchor clamps of annular thin wall part turning usefulness, be linked together through arc seam and cavity, can be for installing the circulation space that communicates with each other around the expansion plate inside of neck pipe front end provides, the effective area of contact of expansion plate inside and outside wall and air has been enlarged, make the air can be via the arc seam, the cavity, and interior expansion plate and first expander roll, the second expander roll, the third expander roll, the smooth and easy circulation in gap between, the natural flow of usable air current, carry out the cooling of naturally dispelling the heat to the expansion plate, also can pass through arc seam input expansion plate inboard with the cutting fluid, supplementary heat dissipation cooling carries out, the radiating form is nimble changeable.

2. This anchor clamps that annular thin wall part turning was used, through three group radius degressive inflation portions in proper order on the expansion plate, can correspond three kinds of not part of equidimension and carry out the inflation centre gripping, change traditional anchor clamps and can only carry out the drawback of centre gripping to the part of a model, establish the maximum diameter department of installing inflation portion on the expansion plate through the part cover, and combine thickening ring to the thickening processing of expansion plate tail end, can carry out spacing protection to the maximum expansion range of expansion plate, avoid excessive inflation and damage the expansion plate.

3. This anchor clamps of annular thin wall part turning usefulness, when providing the spacing space of installing in expansion plate inboard for interior expansion plate through the guide chamber, utilize interior expansion plate as interior push rod spare promotion expansion plate outwards expanded medium, utilize the space between interior push rod spare and the interior expansion plate, interior lateral wall for expansion plate provides two-way heat dissipation space, the unable radiating drawback in time of the part of expansion plate when solving processing part, and can be convenient for change the interior expansion plate that local received wearing and tearing, need not to change expansion mechanism wholly, reduce the waste of resource, practice thrift the processing cost.

4. This anchor clamps that annular thin wall part turning was used, radius through first expander roll, second expander roll, third expander roll reduces in proper order to above-mentioned three structures correspond with the inflation portion on the expansion board in proper order, through starting hydraulic cylinder, with the whole inboard propulsion to the expansion board of constantly of interior push rod spare, through changing the whole back, well, preceding position at the expansion board of interior push rod spare, can realize the syllogic inflation of inflation portion, and then can carry out the centre gripping location to the part of three kinds of models simultaneously.

Drawings

FIG. 1 is an exploded assembly schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the construction of the hydraulic cylinder and assembly rod of the present invention;

FIG. 3 is a schematic view of the docking assembly of the present invention;

fig. 4 is a schematic structural view of an expansion plate and cavity of the present invention;

FIG. 5 is a schematic view of the expansion mechanism and inner expansion plate of the present invention;

FIG. 6 is a schematic structural view of an inner expansion plate of the present invention;

FIG. 7 is a schematic view of the construction of the inner ram member of the present invention;

FIG. 8 is a schematic view of the external structure of a fixture for turning an annular thin-walled part according to the present invention.

In the figure: 1. a hydraulic cylinder; 2. assembling a rod; 3. a screw rod; 4. a docking assembly; 41. a neck tube; 42. connecting blocks; 43. an external thread sleeve; 44. an arc-shaped seam; 45. a card slot; 46. perforating; 5. an expansion mechanism; 51. an expansion plate; 52. an expansion slot; 53. a thickening ring; 54. a guide chamber; 55. a cavity; 56. a threaded cavity; 6. an inner expansion plate; 7. an inner pusher member; 71. a first expander roll; 72. a second expander roll; 73. a third expansion link; 74. a guide head; 8. a nut; 9. a part; 10. inserting a tube; 11. and (6) clamping the strip.

Detailed Description

Example 1

As shown in fig. 1, fig. 2, fig. 6 and fig. 8, the present invention provides a technical solution: the utility model provides an anchor clamps that annular thin wall part turning was used, including

hydraulic cylinder

1, 1 surface cover of hydraulic cylinder is established and is installed

equipment pole

2, and 1 front end fixedly connected with lead screw 3 of hydraulic cylinder, and install the butt joint subassembly 4 at 1 front end of hydraulic cylinder, 4 front ends of butt joint subassembly are installed

expansion gear

5, 5 inboards of expansion gear are circular array and install a plurality of interior

bloated boards

6, and 5 inboard middle parts of expansion gear are equipped with interior push rod spare 7, and install the nut 8 in 5 outsides of expansion gear, 5 surfaces of expansion gear are equipped with part 9, the front end fixedly connected with intubate 10 of

equipment pole

2, 10 fixed surface of intubate are connected with two sets of card strip 11 hydraulic cylinder 1 and pass through intubate 10 and equipment 2 aggregate erection of pole.

During the use, fix a position hydraulic cylinder 1 centre gripping on the cutting lathe through equipment pole 2, will treat that the part 9 cover of processing is established and is installed on the expansion portion of expansion board 51 surface corresponding size, it promotes interior push rod spare 7 and slowly stretches into expansion board 51 inboardly to start hydraulic cylinder 1, utilize the extrusion of interior push rod spare 7 to interior expansion board 6, indirectly drive expansion board 51 and outwards expand, thereby carry out the centre gripping location with part 9, during the use, establish the expansion portion department of installing at the maximum diameter with nut 8 cover in advance, provide the protection to expansion board 51, when needs are used to the expansion portion department of maximum diameter, can take off nut 8 according to part 9's actual size selectivity, carry out the centre gripping location to part 9 again.

Example 2

As shown in fig. 1 and fig. 3, butt joint subassembly 4 includes neck 41, neck 41 surface is circular array and is connected with a plurality of connecting blocks 42, be equipped with external thread bush 43 on the connecting block 42, a plurality of arc seams 44 have been seted up between external thread bush 43 and the neck 41, neck 41 is inside to have seted up perforation 46, draw-in groove 45 has been seted up on the inner wall surface of neck 41, draw-in groove 45 and the corresponding cooperation of card strip 11, intubate 10 is inserted through perforation 46 and neck 41 and is put the installation, intubate 10 is through draw-in groove 45 and the cooperation of card strip 11 and the solid installation of neck 41 card, and neck 41 is through perforation 46 and the cooperation of intubate 10 and the equipment pole 2 aggregate erection, external thread bush 43 is connected as same whole through connecting block 42 and neck 41, hydraulic cylinder 1 and lead screw 3 run through the setting through with neck 41 through perforation 46.

During the use, be linked together through arc seam 44 and cavity 55, can be for installing the inside circulation space that provides the front and back cluster of expansion plate 51 at the neck 41 front end, the effective area of contact of expansion plate 51 inside and outside wall and air has been enlarged, make the air can be via arc seam 44, cavity 55, and interior expansion plate 6 and first expander roll 71, second expander roll 72, third expander roll 73, the smooth and easy circulation in gap between, the natural flow of usable air current, carry out the cooling of naturally dispelling the heat to expansion plate 51, it is inboard also can pass through arc seam 44 input expansion plate 51 with the cutting fluid, supplementary heat dissipation cooling carries out, the heat dissipation form is nimble changeable.

Example 3

As shown in fig. 1, fig. 3, fig. 4 and fig. 5, the expansion mechanism 5 includes an expansion plate 51, a cavity 55 has been opened inside the expansion plate 51, a plurality of expansion grooves 52 have been opened on the surface of the expansion plate 51 in a circular array, one end fixedly connected with thickened ring 53 of the expansion plate 51 near the external thread sleeve 43, a plurality of guide cavities 54 have been opened on the inner wall of the expansion plate 51, a threaded cavity 56 has been opened at one end of the thickened ring 53 away from the expansion plate 51, the expansion plate 51 cooperates with the external thread sleeve 43 and the neck tube 41 through the threaded cavity 56 on the thickened ring 53, and one end of the expansion plate 51 away from the thickened ring 53 is equipped with three sets of expansion parts, and the radii of the three sets of expansion parts decrease progressively in sequence, the expansion grooves 52 run through the expansion plate 51 and communicate with the cavity 55, the guide cavities 54 communicate with the cavity 55, and the internal expansion plate 6 is installed with the expansion plate 51 through the guide cavities 54.

When the expansion plate 51 is used, the expansion clamping can be performed corresponding to three parts 9 with different sizes through three groups of expansion parts with sequentially decreasing radiuses on the expansion plate 51, the defect that a traditional clamp can only clamp one type of part 9 is overcome, the part 9 is sleeved at the maximum diameter position of the expansion part on the expansion plate 51 and is combined with the thickening ring 53 to thicken the tail end of the expansion plate 51, the maximum expansion range of the expansion plate 51 can be limited and protected, and the expansion plate 51 is prevented from being damaged due to excessive expansion;

when providing the spacing space of installing in expansion board 51 inboard for interior bloated board 6 through guide chamber 54, utilize interior bloated board 6 as interior push rod spare 7 promotion expansion board 51 medium of outside inflation, utilize space between interior push rod spare 7 and the interior bloated board 6, provide two-way heat dissipation space for expansion board 51's inside and outside lateral wall, expansion board 51's local unable radiating drawback in time when solving processing part 9, and can be convenient for change the interior bloated board 6 that partially receives wearing and tearing, need not to change expansion mechanism 5 wholly, reduce the waste of resource, practice thrift the processing cost.

Example 4

As shown in fig. 2, fig. 5, fig. 6 and fig. 7, the inner push rod member 7 includes a first expansion rod 71, a second expansion rod 72 is fixedly connected to a proximal end of the first expansion rod 71, a third expansion rod 73 is fixedly connected to a proximal end of the second expansion rod 72, a guide head 74 is fixedly connected to a proximal end of the third expansion rod 73, radii of the first expansion rod 71, the second expansion rod 72 and the third expansion rod 73 are sequentially reduced, and the three shapes are circular truncated cone shapes, the guide head 74 is used for guiding the third expansion rod 73 to be inserted into an annular structure surrounded by a plurality of inner expansion plates 6, a distal end of the first expansion rod 71 is threadedly mounted with the hydraulic cylinder 1 through the lead screw 3, the first expansion rod 71 is telescopically mounted with the expansion plate 51 through the hydraulic cylinder 1, one side of the inner expansion plate 6 is closely attached to an inner wall of the expansion plate 51 through the guide cavity 54, the other side of the inner expansion plate 6 is sequentially provided with three expansion gradients from back to front, the three expansion gradients are respectively sleeved with the first expansion rod 71, the second expansion rod 72 and the third expansion rod 73, the expansion rod 8 is correspondingly sleeved and matched with the nut 51 through the maximum diameter of the expansion plate 51, and the expansion plate mounting part 9.

During the use, through the radius of first expander roll 71, second expander roll 72, third expander roll 73 reduce in proper order to above-mentioned three structures correspond with the inflation portion on the expansion board 51 in proper order, through starting up hydraulic cylinder 1, with the whole inboard propulsion of expansion board 51 of interior push rod spare 7 constantly, through changing the whole back of expansion board 51, well, preceding position of interior push rod spare 7, can realize the syllogic inflation of inflation portion, and then can carry out the centre gripping location to the part 9 of three kinds of models simultaneously.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in this and related arts based on the embodiments of the present invention without creative efforts, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.

Claims

1. The utility model provides an anchor clamps that annular thin wall part turning was used, includes hydraulic cylinder (1), its characterized in that: hydraulic cylinder (1) surface cover is established and is installed equipment pole (2), just hydraulic cylinder (1) front end fixedly connected with lead screw (3), and installs butt joint subassembly (4) of hydraulic cylinder (1) front end, docking subassembly (4) front end is installed expansion mechanism (5), expansion mechanism (5) inboard is circular array and installs a plurality of interior bloated boards (6), just expansion mechanism (5) inboard middle part is equipped with interior push rod spare (7), and installs nut (8) in the expansion mechanism (5) outside, expansion mechanism (5) surface is equipped with part (9).

2. The clamp for turning the annular thin-walled part as claimed in claim 1, wherein: the front end fixedly connected with intubate (10) of equipment pole (2), intubate (10) fixed surface is connected with two sets of card strips (11) hydraulic cylinder (1) is through intubate (10) and equipment pole (2) aggregate erection.

3. The clamp for turning the annular thin-walled part as claimed in claim 1, wherein: the butt joint component (4) comprises a neck pipe (41), the surface of the neck pipe (41) is connected with a plurality of connecting blocks (42) in a circular array mode, an external thread sleeve (43) is arranged on each connecting block (42), and a plurality of arc-shaped seams (44) are formed between the external thread sleeve (43) and the neck pipe (41).

4. The clamp for turning the annular thin-walled part as claimed in claim 3, wherein: the utility model discloses a neck pipe, including neck pipe (41), neck pipe (41) and intubate (10), the inside perforation (46) of having seted up of neck pipe (41), draw-in groove (45) have been seted up on neck pipe (41) inner wall surface, draw-in groove (45) and the corresponding cooperation of card strip (11), intubate (10) are inserted through perforation (46) and neck pipe (41) and are put the installation, intubate (10) are through draw-in groove (45) and card strip (11) cooperation and neck pipe (41) card solid installation, just neck pipe (41) are through perforation (46) and intubate (10) cooperation and equipment pole (2) aggregate erection.

5. The clamp for turning the annular thin-walled part as claimed in claim 4, wherein: the hydraulic cylinder is characterized in that the external thread sleeve (43) is connected with the neck pipe (41) through a connecting block (42) to form a whole, and the hydraulic cylinder (1) and the screw rod (3) are arranged through the through hole (46) and the neck pipe (41).

6. The clamp for turning the annular thin-walled part as claimed in claim 5, wherein: expansion mechanism (5) include expansion plate (51), cavity (55) have been seted up to expansion plate (51) inside, expansion plate (51) surface is circular array and has seted up a plurality of expansion grooves (52), one end fixedly connected with thickening ring (53) that expansion plate (51) are close to external screw thread cover (43), a plurality of guide chamber (54) have been seted up to expansion plate (51) inner wall, threaded chamber (56) have been seted up to the one end that expanding plate (51) were kept away from in thickening ring (53).

7. The clamp for turning the annular thin-walled part as claimed in claim 6, wherein: expand board (51) and cooperate external screw thread cover (43) and neck pipe (41) threaded mounting through threaded cavity (56) on thickened ring (53), just one end that thickened ring (53) was kept away from in expansion board (51) is equipped with three expansion parts, and the radius of three expansion parts diminishes in proper order, expansion groove (52) run through expansion board (51) and are linked together with cavity (55), guide chamber (54) and cavity (55) are linked together, interior bloated board (6) are through guide chamber (54) and expansion board (51) aggregate erection.

8. The clamp for turning the annular thin-walled part as claimed in claim 7, wherein: the inner push rod piece (7) comprises a first expansion rod (71), a second expansion rod (72) is fixedly connected to the near end of the first expansion rod (71), a third expansion rod (73) is fixedly connected to the near end of the second expansion rod (72), and a guide head (74) is fixedly connected to the near end of the third expansion rod (73).

9. The clamp for turning the annular thin-walled part as claimed in claim 8, wherein: the radius of the first expansion rod (71), the radius of the second expansion rod (72) and the radius of the third expansion rod (73) are sequentially reduced, the three expansion rods are in a round table shape, the guide head (74) is used for guiding the third expansion rod (73) to be inserted into an annular structure surrounded by a plurality of inner expansion plates (6), the far end of the first expansion rod (71) is installed with a hydraulic cylinder (1) through a screw rod (3) in a threaded mode, and the first expansion rod (71) is installed with an expansion plate (51) in a telescopic mode through the hydraulic cylinder (1).

10. The clamp for turning the annular thin-walled part as claimed in claim 9, wherein: expansion board (51) inner wall setting is hugged closely through guide chamber (54) to one side of interior expansion board (6), just interior expansion board (6) opposite side is by the back to preceding three inflation gradients that are equipped with in proper order, three inflation gradient is by back to preceding respectively with first expander roll (71), second expander roll (72), the corresponding cooperation of third expander roll (73), nut (8) are established the installation through expansion board (51) and the inflation portion cover of maximum diameter, just part (9) cover is established and is installed on expansion board (51).