CN213496546U

CN213496546U - Complex part turning clamping mechanism

Info

Publication number: CN213496546U
Application number: CN202022440863.4U
Authority: CN
Inventors: 陈凯杰; 陈晓锋
Original assignee: Suzhou Kaisheng Instrument Technology Co ltd
Current assignee: Suzhou Kaisheng Instrument Technology Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-06-22
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses a complicated part turning fixture, including centering dish, the coaxial main shaft connecting seat that is used for being connected with the main shaft that is provided with in one side of centering dish, the opposite side is equipped with the centre gripping subassembly that is used for pressing from both sides tight work piece. The clamping assembly comprises a bottom support, a positioning plate and a pressing portion, the bottom support is arranged on the centering plate in a sliding mode through a fine adjustment mechanism, and the positioning plate is detachably mounted on the bottom support. One side of locating plate is equipped with the dysmorphism breach that matches with the part shape, dysmorphism breach and collet form the dysmorphism groove that is used for the holding part jointly. The upper end of the positioning plate is also provided with a pressing part for pressing a part. The utility model discloses a turning fixture can effectively the complicated part of centre gripping appearance, has enlarged application range, and this fixture convenient operation moreover, the centre gripping stability is good.

Description

Complex part turning clamping mechanism

Technical Field

The utility model relates to a part clamping equipment technical field especially relates to a complicated part turning fixture.

Background

At present, when a common lathe is used for processing shaft rotary parts, a three-jaw chuck is mostly used as a clamping mechanism so as to realize the self-centering function of the parts and facilitate the operation and the processing. The clamping principle of the three-jaw chuck is as follows: firstly, a chuck wrench is used for rotating a bevel gear and driving a compass to rotate, the compass is meshed with movable clamping jaws, and then the three clamping jaws move towards the center simultaneously, so that a part is clamped. However, in the actual machining process, no matter the positive claw and the negative claw are clamped, the clamping length is enough to ensure the stability of the part in the machining process, and the three-jaw chuck can only clamp some simple revolving body parts and is difficult to clamp parts with complex shapes and asymmetric shapes.

Disclosure of Invention

In order to overcome the defects, the utility model aims to provide a complicated part turning fixture, which can effectively clamp parts with complicated appearance, enlarges the application range, is convenient to operate and has good clamping stability.

In order to achieve the above purpose, the utility model discloses a technical scheme is: the utility model provides a complicated part turning fixture, includes the centering dish, one side of centering dish is coaxial to be provided with the main shaft connecting seat that is used for being connected with the main shaft, and the opposite side is equipped with the centre gripping subassembly that is used for pressing from both sides tight work piece. The clamping assembly comprises a bottom support, a positioning plate and a pressing portion, the bottom support is arranged on the centering plate in a sliding mode through a fine adjustment mechanism, and the positioning plate is detachably mounted on the bottom support. One side of locating plate is equipped with the dysmorphism breach that matches with the part shape, dysmorphism breach and collet form the dysmorphism groove that is used for the holding part jointly. The upper end of the positioning plate is also provided with a pressing part for pressing a part.

The beneficial effects of the utility model reside in that: the rotation of the centering disc is realized through the arrangement of the main shaft connecting seat, so that the rotation of a part on the clamping assembly is driven, and the processing requirement on the part is met; in the centre gripping subassembly, drive the collet through a fine-tuning and slide on the centering dish, and then can adjust the collet position according to the specification of part, the locating plate that the locating plate of connection on the collet can be based on the shape quick replacement of part can be dismantled to the rethread to make special-shaped breach and part looks adaptation on the locating plate, compress tightly the part that is located the dysmorphism inslot through the portion that compresses tightly at last, and then avoid breaking away from the dysmorphism groove at part pivoted in-process. The utility model discloses a fixture can effectively the complicated part of centre gripping appearance, has enlarged application range, and this fixture convenient operation moreover, the centre gripping stability is good.

Furthermore, the pressing part comprises cushion blocks symmetrically arranged on two sides of the special-shaped gap, a pressing block which is driven by the second fine adjustment mechanism to move towards or away from the special-shaped gap is arranged at the upper end of each cushion block, and a pressing surface capable of pressing against a part is arranged at the lower end of each pressing block. The pressing of the part in the special-shaped groove is realized through the movable pressing block, and then the clamping of the part can be realized by matching with the special-shaped groove.

Further, the second fine adjustment mechanism comprises a second waist-shaped hole and a second adjusting screw, and the second waist-shaped hole is formed in the pressing block along the horizontal direction. And the second adjusting screw is positioned on the bottom support, and one end of the second adjusting screw penetrates through the positioning plate, the cushion block and the second waist-shaped hole in sequence and is in threaded connection with a second adjusting nut.

Further, the briquetting includes the briquetting body, the briquetting body is close to the one end of dysmorphism breach is provided with the pressure head that can press on the part integratively.

Furthermore, the upper end of the bottom support is provided with a plurality of sliding grooves distributed along the horizontal direction, and a fixing screw used for connecting the positioning plate is arranged in one of the sliding grooves in a sliding manner. And the positioning plate is provided with a threaded hole for the fixing screw to pass through. The fixed position of the positioning plate on the bottom support can be adjusted through the fixing screw which is arranged in the sliding groove in a sliding mode.

Further, the first fine adjustment mechanism comprises a first waist-shaped hole formed in the bottom support in the vertical direction and an adjusting screw fixedly connected to the centering disc, and the adjusting screw penetrates through the first waist-shaped hole and is in threaded connection with an adjusting nut.

Furthermore, a balancing weight for balancing the stress of the centering disc is further arranged on one side, close to the clamping assembly, of the centering disc. When the position of part on the centering dish is too big off-set, for guaranteeing that the part can not cause the problem of machining precision because of centrifugal force is too big when rotatory, need install the balancing weight in order to guarantee centering dish pivoted stationarity on the centering dish.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another view angle according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a clamping assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a shoe according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a positioning plate according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of components of an embodiment of the present invention.

In the figure:

1-centering the disc; 11-a spindle connection seat; 12-a counterweight block; 2-bottom support; 21-standing a plate; 22-a support plate; 221-a chute; 23-rib plate; 3, positioning a plate; 31-a shaped gap; 32-first threaded hole; 33-second threaded hole; 4-a set screw; 51-waist-shaped hole I; 52-adjustment screw number one; 61-cushion block; 62-briquetting; 7-parts; 81-second waist-shaped hole; 82-second adjusting screw; 83-second adjusting nut.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Examples

Referring to the attached drawings 1-3, the utility model discloses a complicated part turning fixture, including centering disc 1, one side coaxial of centering disc 1 is provided with the main shaft connecting seat 11 that is used for being connected with the main shaft, and the opposite side is equipped with the centre gripping subassembly that is used for pressing from both sides tight work piece. The clamping assembly comprises a bottom support 2, a positioning plate 3 and a pressing portion, wherein the bottom support 2 is arranged on the centering plate 1 in a sliding mode through a fine adjustment mechanism, and the positioning plate 3 is detachably mounted on the bottom support. One side of the positioning plate 3 is provided with a special-shaped notch 31 matched with the shape of the part, and the special-shaped notch 31 and the bottom support 2 jointly form a special-shaped groove for accommodating the part 7. The upper end of the positioning plate 3 is also provided with the pressing part for pressing the part 7.

The spindle connecting seat 11 is arranged to realize the rotation of the centering disc 1, so as to drive the part on the clamping assembly to rotate, and the processing requirement on the part is met; in the centre gripping subassembly, drive collet 2 through a fine-tuning and slide on centering plate 1, and then can adjust collet 2 position according to the specification of part, the locating plate that the shape quick replacement of part matches can be followed to locating plate 3 of connection on collet 2 can be dismantled to the rethread, so that dysmorphism breach 31 and part looks adaptation on the locating plate 3, compress tightly the part that is located the dysmorphism inslot through the portion that compresses tightly at last, and then avoid breaking away from the dysmorphism groove at part pivoted in-process.

In this embodiment, referring to fig. 4, the base plate 2 includes an upright plate 21 slidably disposed on the centering plate 1, a support plate 22 forming an "L" shape is integrally disposed at an upper end of the upright plate 21, and a plurality of triangular rib plates 23 are integrally disposed between the support plate 22 and the upright plate 21. The upper end of the supporting plate 22 is provided with a plurality of sliding grooves 221 arranged along the horizontal direction, wherein a fixing screw 4 for connecting the positioning plate 3 is arranged in one of the sliding grooves 221 in a sliding manner.

Referring to fig. 3-4, the first fine adjustment mechanism includes a first waist-shaped hole 51 formed in the vertical plate 21 in the vertical direction, and a first adjustment screw 52 fixedly connected to the centering plate 1, and the first adjustment screw 52 penetrates through the first waist-shaped hole 51 and is in threaded connection with a first adjustment nut. The vertical plate 21 moves up and down on the centering disc 1 through the arrangement of the first kidney-shaped hole 51 and the first adjusting screw 52.

In this embodiment, referring to fig. 4-6, the pressing portion includes two pads 61 symmetrically disposed on two sides of the shaped gap 31, a pressing block 62 driven by a second fine adjustment mechanism to move toward or away from the shaped gap 31 is disposed on an upper end of the pads 61, the pressing block 62 includes a pressing block body, a pressing head capable of pressing against the part 7 is integrally disposed on one end of the pressing block body close to the shaped gap 31, and a pressing surface capable of pressing against the part 7 is disposed on a lower end of the pressing head. The pressing block 62 capable of moving realizes the pressing of the part in the special-shaped groove, and then can be matched with the special-shaped groove to realize the clamping of the part.

Specifically, the second fine adjustment mechanism comprises a second waist-shaped hole 81 and a second adjusting screw 82, and the second waist-shaped hole 81 is formed in the pressing block 62 in the horizontal direction. The second adjusting screw 82 is slidably disposed in the other sliding groove 221 of the supporting plate 22, and one end of the second adjusting screw 82 sequentially penetrates through the positioning plate 3, the cushion block 61 and the second waist-shaped hole 81 and is in threaded connection with a second adjusting nut 83. The movement of the pressing block 62 at the upper end of the cushion block 61 is realized through the matching of the second kidney-shaped hole 81 and the second adjusting screw 82, and further the pressing or releasing of the part 7 is realized.

Referring to fig. 5, the positioning plate 3 is respectively provided with a first threaded hole 32 for the fixing screw 4 to pass through and a second threaded hole 33 for the second adjusting screw 82 to pass through.

When the position of part 7 on centering dish 1 is too big offset, for guaranteeing that part 7 can not cause the problem of machining precision because of centrifugal force is too big when rotatory, need install the balancing weight in order to guarantee centering dish 1 pivoted stationarity on centering dish 1. Therefore, in this embodiment, one side of the centering plate 1 close to the clamping assembly is further provided with a balancing weight 12 for balancing the stress of the centering plate 1, and the weight of the balancing weight 12 can be adjusted according to the actual position of the part.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. The utility model provides a complicated part turning fixture which characterized in that: the centering device comprises a centering disc, wherein a main shaft connecting seat used for being connected with a main shaft is coaxially arranged on one side of the centering disc, and a clamping assembly used for clamping a workpiece is arranged on the other side of the centering disc; the clamping assembly comprises a bottom support, a positioning plate and a pressing part, the bottom support is arranged on the centering disc in a sliding mode through a first fine adjustment mechanism, and the positioning plate is detachably mounted on the bottom support; one side of the positioning plate is provided with a special-shaped notch matched with the shape of the part, and the special-shaped notch and the bottom support form a special-shaped groove for containing the part together; the upper end of the positioning plate is also provided with a pressing part for pressing a part.

2. The complex part turning clamping mechanism of claim 1, wherein: the pressing portion comprises cushion blocks symmetrically arranged on two sides of the special-shaped notch, a pressing block driven by a second fine adjustment mechanism to move towards or away from the special-shaped notch is arranged at the upper end of each cushion block, and a pressing surface capable of being pressed against a part is arranged at the lower end of each pressing block.

3. The complex part turning clamping mechanism of claim 2, wherein: the second fine adjustment mechanism comprises a second waist-shaped hole and a second adjustment screw, and the second waist-shaped hole is formed in the pressing block along the horizontal direction; and the second adjusting screw is positioned on the bottom support, and one end of the second adjusting screw penetrates through the positioning plate, the cushion block and the second waist-shaped hole in sequence and is in threaded connection with a second adjusting nut.

4. The complex part turning clamping mechanism of claim 3, wherein: the briquetting includes the briquetting body, the briquetting body is close to the one end an organic whole of dysmorphism breach is provided with the pressure head that can press on the part.

5. The complex part turning clamping mechanism of any one of claims 1-4, wherein: the upper end of the bottom support is provided with a plurality of sliding grooves distributed along the horizontal direction, and a fixing screw used for connecting the positioning plate is arranged in one of the sliding grooves in a sliding manner; and the positioning plate is provided with a threaded hole for the fixing screw to pass through.

6. The complex part turning clamping mechanism of claim 5, wherein: a fine-tuning includes that to set up along vertical direction waist type hole, rigid coupling on the collet are in No. one adjusting screw on the centering dish, an adjusting screw passes No. one waist type hole and threaded connection have an adjusting nut.

7. The complex part turning clamping mechanism of claim 1, wherein: and a balancing weight used for balancing the stress of the centering disc is further arranged on one side of the centering disc close to the clamping assembly.