CN215999558U

CN215999558U - Clamping device for processing ring parts

Info

Publication number: CN215999558U
Application number: CN202122198344.6U
Authority: CN
Inventors: 徐跃康
Original assignee: Changzhou Shuohong Machinery Co ltd
Current assignee: Changzhou Shuohong Machinery Co ltd
Priority date: 2021-09-11
Filing date: 2021-09-11
Publication date: 2022-03-11
Anticipated expiration: 2031-09-11

Abstract

The utility model discloses a clamping device of ring type parts machining, the one end of midseat is fixed with the base, the other end and the seat of honour of midseat are fixed, be equipped with first through-hole on the base, be equipped with the second through-hole on the midseat, be equipped with hole and the third through-hole of stepping down on the seat of honour, first through-hole and second through-hole are passed to the one end of link mechanism, the other end and the hole cooperation of stepping down of link mechanism, link mechanism passes the inclined plane cooperation with swing hold-down mechanism, swing hold-down mechanism passes the third through-hole and exposes in the axial terminal surface outside of seat of honour, these expose the region that encloses in the part in the seat axial terminal surface outside and be the clamping region, reset spring cover is on link mechanism, reset spring's one end and link mechanism support, reset spring's the other end supports with the base, the one end and the seat of reference column are fixed, the reference column is located around the clamping region. The utility model discloses can prevent that lopps part warp.

Description

Clamping device for processing ring parts

Technical Field

The utility model relates to a clamping device of ring class parts machining.

Background

Thin-wall annular shell parts are widely used in medium and small gas turbines. In the machining process of the thin-wall annular shell type part, the thin-wall annular shell type part is generally required to be positioned by using a clamping device and then to be machined so as to ensure the machining precision of the thin-wall annular shell type part.

When the end face of the thin-wall annular shell part is processed, an expansion tool is usually adopted to position the thin-wall annular shell part. The bulging tool comprises a driving unit, a bulging block and a limiting pressing plate, the driving unit is connected with one end of the bulging block, the end face of the other end of the bulging block is matched with the inner side wall of the thin-wall annular shell part, and the limiting pressing plate can be pressed on the end face of one end of the thin-wall annular shell part. When the expansion tool works, the expansion block is driven by the driving unit to uniformly expand the thin-wall annular shell parts along the radial direction of the thin-wall annular shell parts, and meanwhile, the limiting pressure plate is pressed on one end face of the thin-wall annular shell parts.

However, since the wall thickness of the thin-walled annular shell part is small, the thin-walled annular shell part is easily deformed by tensioning the tensioning block.

SUMMERY OF THE UTILITY MODEL

The utility model provides a clamping device of ring class parts machining, the utility model discloses can prevent that the ring class part from warping.

A clamping device for processing ring parts comprises a base, a middle seat, an upper seat, a pull rod mechanism, a plurality of swing pressing mechanisms, a return spring and a positioning column, wherein one end of the middle seat is fixed with the base, the other end of the middle seat is fixed with the upper seat, the base is provided with a first through hole, the middle seat is provided with a second through hole, the upper seat is provided with a step-down hole and a third through hole, one end of the pull rod mechanism penetrates through the first through hole and the second through hole, the other end of the pull rod mechanism is matched with the step-down hole, the pull rod mechanism is matched with the swing pressing mechanisms through an inclined plane, the swing pressing mechanisms penetrate through the third through hole and are exposed outside the axial end face of the upper seat, a clamping area is defined by parts exposed outside the axial end face of the upper seat, the return spring is sleeved on the pull rod mechanism, one end of the return spring is abutted against the pull rod mechanism, the other end of the return spring is abutted against the base, one end of the positioning column is fixed with the upper seat, the positioning column is located around the clamping area.

The utility model discloses during the use, put the lopps part in the clamping region, the lopps part forms clearance fit with the reference column earlier, form radially spacingly to the lopps part through the reference column, then make the linear motion of pull rod mechanism through the linear drive on the lathe, among the pull rod mechanism linear motion process, effect through the inclined plane makes swing hold-down mechanism's partly linear motion, swing hold-down mechanism's another part takes place the swing along with linear motion to swing hold-down mechanism produces to the lopps part and compresses tightly the effort, and then compresses tightly the lopps part. In the process of compressing the ring parts, the pull rod mechanism moves linearly to compress the return spring, and when the ring parts are compressed and released, the pull rod mechanism resets under the restoring acting force of the return spring. The utility model discloses an axial and radial form the positioning action to lopps part, need not to exert the tight effort that rises to lopps part, have avoided the lopps part to warp.

Drawings

FIG. 1 is a top view of a clamping device for machining ring-like parts;

FIG. 2 is a cross-sectional view taken along line I-I of FIG. 1;

FIG. 3 is a perspective view of the drive head;

FIG. 4 is a perspective view of a radially moving member;

FIG. 5 is a perspective view of the swing arm;

reference numbers in the drawings:

the base 1, first through-hole 1a, middle seat 2, second through-hole 2a, seat 3 on the upper seat, hole 3a of stepping down, third through-hole 3b, reset spring 4, pull rod 5, stopper 5a, drive head 6, chute 6a, block part 6b, radial movement part 7, taper hole 7a, first slider 7b, connecting block 7c, second slider 7d, swing arm 8, bulb 8a, toper protective sheath 8b, swing arm body 8c, elastic sleeve 8d, briquetting 9, the space of sliding 10, reference column 11, clamping area A.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 5 and the specific embodiments.

The utility model discloses a lopps parts machining's clamping device, including base 1, middle seat 2, seat of honour 3, pull rod mechanism, a plurality of swing hold-down mechanism, reset spring 4, reference column 11, base 1 and lathe fixed connection, wherein, pull rod mechanism is fixed with the sharp actuating mechanism on the lathe, drives pull rod mechanism along the axial displacement of clamping device through sharp actuating mechanism.

One end of the middle seat 2 is fixed with the base 1, the other end of the middle seat 2 is fixed with the upper seat 3, the base 1 is provided with a first through hole 1a, the middle seat 2 is provided with a second through hole 2a, the upper seat 3 is provided with a abdication hole 3a and a third through hole 3b, one end of the pull rod mechanism passes through the first through hole 1a and the second through hole 2a, the other end of the pull rod mechanism is matched with the abdication hole 3a, the pull rod mechanism is matched with the swing pressing mechanism through an inclined plane, the swing pressing mechanism passes through the third through hole 3b and is exposed outside the axial end face of the upper seat 3, the area enclosed by the parts exposed outside the axial end face of the upper seat 3 is a clamping area A, the return spring 4 is sleeved on the pull rod mechanism, one end of the return spring 4 abuts against the pull rod mechanism, the other end of the return spring 4 abuts against the base 1, one end of the positioning column 11 is fixed with the upper seat 3, and the positioning column 11 is located around the clamping area A. The number of the positioning columns 11 is multiple, and in this embodiment, the number of the positioning columns 11 is 4.

The utility model discloses during the use, put the lopps part in clamping area A, the lopps part forms clearance fit with reference column 11 earlier, form radial spacing to the lopps part through reference column 11, then make the linear motion of pull rod mechanism through the linear drive on the lathe, among the pull rod mechanism linear motion process, effect through the inclined plane makes swing hold-down mechanism's partly linear motion, another part of swing hold-down mechanism takes place the swing along with linear motion to swing hold-down mechanism produces the pressure force that compresses tightly the lopps part, and then compress tightly the lopps part. In the process of compressing the ring parts, the pull rod mechanism moves linearly to compress the return spring 4, and when the ring parts are compressed and released, the pull rod mechanism resets under the restoring acting force of the return spring 4.

The pull rod mechanism comprises a pull rod 5 and a driving head 6, the pull rod 5 is fixed with the driving head 6, and the circumferential surface of the driving head 6 is provided with a chute 6a matched with the swing pressing mechanism. The pull rod 5 is fixed with a linear driving mechanism on a machine tool, a limiting block 5a is fixed on the circumferential surface of the pull rod 5, and one end of the reset spring 4 abuts against the limiting block 5 a. And a blocking part 6b is arranged on the notch or the wall surface of the chute 6a, and the swinging pressing mechanism is prevented from being separated from the pull rod mechanism through the blocking part 6 b.

The swing pressing mechanism comprises a radial moving part 7, a swing arm 8 and a pressing block 9, one end of the radial moving part 7 is matched with the pull rod mechanism, preferably, one end of the radial moving part 7 is matched with the chute 6a, a sliding space 10 is arranged between the middle seat 2 and the upper seat 3, the other end of the radial moving part 7 is located in the sliding space and matched with one end of the swing arm 8, the swing arm 8 penetrates through the third through hole 3b, the other end of the swing arm 8 is fixed with one end of the pressing block 9, and the other end of the pressing block 9 is a free end for pressing the ring parts.

When the pull rod mechanism moves axially, the inclined surface on the driving head 6 applies radial acting force to the radial moving part 7, the radial moving part 7 moves along the radial direction of the middle seat 2 and the upper seat 3, the radial moving part 7 pushes the swing arm 8 to enable the swing arm 8 to swing, and further the pressing block 9 generates axial acting force on the ring-like parts.

The other end of the radial moving part 7 is provided with a taper hole 7a, one end of the swing arm 8 is provided with a ball head 8a and a conical protective sleeve 8b, the conical protective sleeve 8b is sleeved on the ball head 8a, and the conical protective sleeve 8b is matched with the taper hole 7 a. Through toper protective sheath 8b and taper hole 7a mating reaction, make radial moving part 7 and swing arm 8 form the clearance fit structure to make swing arm 8 take place the swing when radial moving part 7 radial movement.

The radial moving part 7 comprises a first slide block 7b, a connecting block 7c and a second slide block 7d, one end of the connecting block 7c is connected with the first slide block 7b, and the other end of the connecting block 7c is connected with the second slide block 7 d. The first slider 7b is slidably fitted in the sliding space 10, the second slider 7d is slidably fitted in the inclined groove 6a, the width of the connecting block 7c is smaller than that of the second slider 7d, and the second slider 7d is blocked by the blocking member 6b, so that the second slider 7d can be prevented from being separated from the inclined groove 6a and coming out.

The swing arm 8 comprises a swing arm body 8c and an elastic sleeve 8d, the elastic sleeve 8d is sleeved on the swing arm body 8c, and the elastic sleeve 8d is matched with the third through hole 3 b. Because the elastic sleeve 8d has the function of deformation, when the swing arm body 8c swings, the swing arm body 8c applies pressure to the elastic sleeve to deform the pressure sleeve 8d, so that the swing arm 8 has the function of swinging, and the swing arm body 8c is prevented from being abraded due to overlarge friction in the swinging process.

A part of the outer peripheral surface of the elastic sleeve 8d is spherical, and a part of the hole wall surface of the third through hole 3b is spherical. Through the cooperation of sphere, make the swing of swing arm 8 more nimble.

Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention to illustrate the technical solution of the present invention, but not to limit the technical solution, and the patent scope of the present invention is not limited; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention; in addition, will the technical scheme of the utility model direct or indirect application is in other relevant technical field, all including on the same reason the utility model discloses an in the patent protection scope.

Claims

1. The clamping device for processing ring parts is characterized by comprising a base (1), a middle seat (2), an upper seat (3), a pull rod mechanism, a plurality of swinging pressing mechanisms, a reset spring (4) and a positioning column (11), wherein one end of the middle seat (2) is fixed with the base (1), the other end of the middle seat (2) is fixed with the upper seat (3), a first through hole (1a) is formed in the base (1), a second through hole (2a) is formed in the middle seat (2), a abdicating hole (3a) and a third through hole (3b) are formed in the upper seat (3), one end of the pull rod mechanism penetrates through the first through hole (1a) and the second through hole (2a), the other end of the pull rod mechanism is matched with the abdicating hole (3a), the pull rod mechanism is matched with the swinging pressing mechanisms through an inclined plane, the swinging pressing mechanisms penetrate through the third through hole (3b) and are exposed outside the axial end face of the upper seat (3), the area defined by the parts exposed outside the axial end face of the upper seat (3) is a clamping area (A), the reset spring (4) is sleeved on the pull rod mechanism, one end of the reset spring (4) abuts against the pull rod mechanism, the other end of the reset spring (4) abuts against the base (1), one end of the positioning column (11) is fixed with the upper seat (3), and the positioning column (11) is located around the clamping area (A).

2. The clamping device for processing ring-like parts according to claim 1, wherein the pull rod mechanism comprises a pull rod (5) and a driving head (6), the pull rod (5) is fixed with the driving head (6), and the periphery of the driving head (6) is provided with a chute (6a) matched with the swinging pressing mechanism.

3. The clamping device for processing ring-like parts according to claim 2, wherein the notch or the wall surface of the inclined groove (6a) is provided with a blocking member (6 b).

4. The clamping device for processing the ring parts according to claim 1, wherein the swing pressing mechanism comprises a radial moving part (7), a swing arm (8) and a pressing block (9), one end of the radial moving part (7) is matched with the pull rod mechanism, a sliding space (10) is arranged between the middle seat (2) and the upper seat (3), the other end of the radial moving part (7) is located in the sliding space and matched with one end of the swing arm (8), the swing arm (8) penetrates through the third through hole (3b), the other end of the swing arm (8) is fixed with one end of the pressing block (9), and the other end of the pressing block (9) is a free end for pressing the ring parts.

5. The clamping device for processing ring-like parts according to claim 4, wherein the other end of the radial moving part (7) is provided with a taper hole (7a), one end of the swing arm (8) is provided with a ball head (8a) and a tapered protective sleeve (8b), the tapered protective sleeve (8b) is sleeved on the ball head (8a), and the tapered protective sleeve (8b) is matched with the taper hole (7 a).

6. The clamping device for ring part machining according to claim 4, wherein the radial moving member (7) comprises a first sliding block (7b), a connecting block (7c) and a second sliding block (7d), one end of the connecting block (7c) is connected with the first sliding block (7b), and the other end of the connecting block (7c) is connected with the second sliding block (7 d).

7. The clamping device for processing ring-like parts according to claim 4, wherein the swing arm (8) comprises a swing arm body (8c) and an elastic sleeve (8d), the elastic sleeve (8d) is sleeved on the swing arm body (8c), and the elastic sleeve (8d) is matched with the third through hole (3 b).

8. The holder for machining a ring-like part according to claim 7, wherein a part of the outer peripheral surface of the elastic sleeve (8d) is spherical, and a part of the hole wall surface of the third through hole (3b) is spherical.