Disclosure of Invention
To the problem that exists, the utility model aims at providing a be applied to tight frock of clamp of turning in big sleeve, it can realize prescribing a limit to telescopic horizontal position and the vertical effect that compresses tightly to wholly with the stable fastening of sleeve on the supporting workbench, with the problem of overcoming stress deflection in later stage turning man-hour, thereby improve telescopic lathe work precision.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a be applied to tight frock of clamp of turning in big sleeve, places telescopic supporting workbench including the top, a plurality of type grooves of falling T, its characterized in that have been seted up to supporting workbench top interval: the clamping tool comprises a horizontal limiting device which is arranged in the inverted T-shaped groove and tightly attached to the two side walls of the sleeve, is corresponding to the supporting workbench, and a vertical pressing device which is pressed on the top of the sleeve is arranged in the inverted T-shaped groove.
Preferably, horizontal stop device includes the orientation sleeve direction is transversely hugged closely and is worn to establish L type backup pad in the type of falling T groove, and it has vertical board and the horizontal board of hugging closely type of falling T groove lateral wall and inner wall still be provided with on the horizontal board with the adaptation hold-down mechanism of sleeve outer wall contact.
Preferably, the adaptation hold-down mechanism includes the fastening bolt that vertical plate top was worn to establish the fastening bolt well cover is equipped with "7" type pressure strip, "7" type pressure strip have with vertical lateral wall and the slant lateral wall that vertical plate hugged closely support the workstation on still placed with the sleeve outer wall reaches the spacing sleeve that the slant lateral wall was hugged closely simultaneously.
Preferably, the vertical pressing device comprises supporting sleeves arranged on two sides of the supporting workbench, a supporting screw rod is arranged on the top end of each supporting sleeve in a penetrating mode, a pressing plate which is pressed on the top end of each sleeve is horizontally arranged on the top end of each supporting screw rod, a pressing screw rod is arranged in the middle of each pressing plate in a penetrating mode, and a limiting block which is arranged in the inverted T-shaped groove in a sleeved mode is arranged at the bottom end of each pressing screw rod.
The beneficial effects of the utility model are that: this press from both sides tight frock through horizontal stop device to exert external force with the help of falling T type groove, carry out stable injecing to telescopic horizontal position, avoid the horizontal deflection in the course of working. And through vertical closing device, on the basis to sleeve level spacing, carry out vertical compressing tightly to the sleeve to fastening that is overall stable with the sleeve on the supporting workbench, with the problem of overcoming the atress skew in later stage lathe work to improve telescopic lathe work precision.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the technical solution of the present invention with reference to the accompanying drawings and embodiments.
Referring to the attached drawings 1-3, the clamping tool applied to turning in the large sleeve comprises a supporting workbench 2 with the top provided with a sleeve 1, and a plurality of inverted T-shaped grooves 201 are formed in the top of the supporting workbench 2 at intervals. When the inner wall of the large-diameter sleeve 1 is turned, the large-diameter sleeve 1 is placed on the supporting workbench 2 and fastened, the sleeve 1 corresponds to the rotary turning tool bit 12, the machine tool sets machining parameters of the rotary turning tool bit to enable the rotary turning tool bit to extend into the inner hole of the sleeve 1, and the turning operation is carried out on the inner wall of the sleeve. Because sleeve 1 not only the external diameter is great to its surface is the circumference smooth surface, consequently is difficult to with its and supporting workbench 2 fastening centre gripping relatively, receiving the in-process of rotatory turning tool bit 12 cutting, sleeve 1 receives great turning external force to take place the incline easily, leads to the machining precision lower, influences sleeve 1's processingquality, consequently the utility model discloses a set up the adaptation in the telescopic clamp of major diameter from tight frock, carry out the centre gripping of fastening to it is difficult to press from both sides tightly and receive the inclined problem of turning external force easily with supporting workbench 2 to solve it, improves the machining precision.
Specifically, as shown in fig. 1, the clamping tool includes a horizontal limiting device disposed in the inverted T-shaped groove 201 and tightly attached to two side walls of the sleeve 1, and the horizontal limiting device is disposed on the support table 2 and used for stably limiting the horizontal position of the sleeve 1 by applying an external force through the inverted T-shaped groove 201, so as to avoid horizontal deflection in the machining process. And a vertical pressing device which is pressed on the top of the sleeve 1 is arranged in the corresponding inverted T-shaped groove 201. It is on the basis to sleeve 1 horizontal spacing, carries out vertical compaction to the sleeve to on the whole with the stable fastening of sleeve 1 on supporting table 2, with overcome the problem of atress skew in later stage turning process.
Specifically, as shown in fig. 3, the horizontal limiting device includes a direction toward the sleeve 1, and the L-shaped supporting plate 3 is transversely tightly attached to the inner side of the inverted T-shaped groove 201 and provided with a vertical plate 31 and a horizontal plate 32 tightly attached to the side wall and the inner wall of the inverted T-shaped groove 201, and the horizontal plate 32 is further provided with an adaptive pressing mechanism contacting with the outer wall of the sleeve 1. Place sleeve 1 on supporting workbench 2 at first, embolia L type backup pad 3 and relative with sleeve 1 lateral wall from the tip of the type of falling T groove 201 that is close to sleeve 1 (this preferred L type backup pad 3 all carries on spacingly from sleeve 1 both sides and both ends, set up four altogether), hug closely the contact through vertical board 31 and the lateral wall of the type of falling T groove 201 and horizontal board 32 and the inner wall of the type of falling T groove 201, realize L type backup pad 3 and the type of falling T groove 201 hug closely spacingly, interval size between outer wall and the L type backup pad 3 through sleeve 1 after that, through adaptation hold-down mechanism's regulation, make L type backup pad 3 realize hugging closely the contact to sleeve 1 outer wall, and carry out horizontal spacing to sleeve 1's outer wall, through four L type backup pads 3 that set up, further improve the horizontal limiting effect to sleeve 1.
Specifically, as shown in fig. 3, the adaptive pressing mechanism includes a fastening bolt 4 penetrating through the top end of the vertical plate 31, a "7" type pressing plate 5 is sleeved in the fastening bolt 4, the "7" type pressing plate 5 has a vertical side wall 51 and an oblique side wall 52 tightly attached to the vertical plate 31, and a limiting sleeve 6 tightly attached to the outer wall of the sleeve 1 and the oblique side wall 52 is further placed on the supporting workbench 2. After the L-shaped supporting plate 3 is transversely aligned, the limiting sleeve 6 is placed on the supporting workbench 2 and tightly attached to the outer wall of the sleeve 1, then the fastening bolt 4 is arranged in the 7-shaped pressing plate 5 in a penetrating mode, the bottom end of the fastening bolt 4 is sleeved in the vertical plate 31 in a threaded mode, then the fastening bolt 4 is screwed, the 7-shaped pressing plate 5 is vertically pressed, the inclined side wall 52 of the fastening bolt is pressed on the side wall of the limiting sleeve 6 in a contacting mode, the limiting sleeve 6 is limited, and meanwhile the sleeve 1 is horizontally limited.
Specifically, as shown in fig. 1, the vertical pressing device includes a supporting sleeve 7 disposed on two sides of the supporting workbench 2, a supporting screw 8 is disposed on the top end of the supporting sleeve, a pressing plate 9 pressed on the top end of the sleeve 1 is horizontally disposed on the top end of the supporting screw 8, a pressing screw 10 is disposed in the middle of the pressing plate 9, and a limiting block 11 disposed in the inverted T-shaped groove 201 is disposed at the bottom end of the pressing screw 10 in a sleeved mode. After the sleeve 1 is horizontally limited, the supporting sleeve 7 is placed on the supporting workbench 2 on two sides of the sleeve 1 and is preferably placed front and back along the axis direction of the sleeve 1, so that the sleeve 1 is stably and vertically compressed, and the top end of the supporting screw rod 8 is horizontally aligned with the top end of the sleeve 1 in a rotating and adjusting mode. Pressing plate 9 is pressed with clamping screw 10 and stopper 11, and stopper 11 transversely wears to establish in corresponding type of falling T groove 201, the top cover that is located pressing plate 9 at clamping screw 10 is equipped with tensioning nut 13 preferentially, will make pressing plate 9 push down through rotatory tensioning nut 13, and make its both ends contact sleeve 1 top and the 8 tops of supporting screw, realize pressing plate 9 vertical compressing tightly effect to sleeve 1, cooperate the horizontal limiting action simultaneously, realize sleeve 1 and the fastening clamping of support workstation 2, it can effectively overcome the skew problem that external force caused sleeve 1 during the turning, and improve the machining precision.
The principle of the utility model is that: first place sleeve 1 on supporting workbench 2, embolia L type backup pad 3 and relative with the sleeve 1 lateral wall from the tip that is close to sleeve 1's the type of falling T groove 201 after that, hug closely the contact through vertical board 31 and the lateral wall of the type of falling T groove 201 and horizontal board 32 and the inner wall of the type of falling T groove 201, realize L type backup pad 3 and fall to hug closely spacing in the type of falling T groove 201. Then, the limiting sleeve 6 is placed on the supporting workbench 2 and is tightly attached to the outer wall of the sleeve 1, the fastening bolt 4 is arranged in the 7-shaped pressing plate 5 in a penetrating mode, the bottom end of the fastening bolt 4 is sleeved in the vertical plate 31 in a threaded mode, then the fastening bolt 4 is screwed, the 7-shaped pressing plate 5 is vertically pressed, the inclined side wall 52 of the fastening bolt contacts and is pressed on the side wall of the limiting sleeve 6, the limiting sleeve 6 is limited, and meanwhile the sleeve 1 is horizontally limited.
After the sleeve 1 is horizontally limited, the supporting sleeve 7 is placed on the supporting workbench 2 on two sides of the sleeve 1, the top end of the supporting screw rod 8 is adjusted in a rotating mode and is horizontally aligned with the top end of the sleeve 1, then the pressing plate 9 is provided with the pressing screw rod 10 and the limiting block 11, the limiting block 11 is transversely arranged in the corresponding inverted T-shaped groove 201 in a penetrating mode, the pressing plate 9 is pressed downwards through the rotating tightening nut 13, two ends of the pressing plate are in contact with the top end of the sleeve 1 and the top end of the supporting screw rod 8, the vertical pressing effect of the pressing plate 9 on the sleeve 1 is achieved, meanwhile, the horizontal limiting effect is matched, the sleeve 1 and the supporting workbench 2 are fastened and clamped, the problem that the sleeve 1 is deflected due to external force during turning can be effectively solved, and the machining precision is improved.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.