CN213703134U

CN213703134U - Special clamping tool for blank

Info

Publication number: CN213703134U
Application number: CN202022295687.XU
Authority: CN
Inventors: 何齐放; 秦国军; 张立军; 王铎霖
Original assignee: Suzhou Yilaierte Machinery Co ltd
Current assignee: Suzhou Yilaierte Machinery Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-07-16
Anticipated expiration: 2030-10-15

Abstract

The utility model relates to a press from both sides tight special frock for blank, blank is foundry goods or forging, blank's center department is equipped with the through-hole, be equipped with the detachable locating piece on the blank and encircle the bulge loop of through-hole, the frock includes frock bottom plate, axial positioning dabber, locking fastening clamp plate and spacer pin, setting can be dismantled in proper order to frock bottom plate, axial positioning dabber and locking fastening clamp plate top-down, the top that blank was located to the frock bottom plate contacts with bulge loop and locating piece, axial positioning dabber and locking fastening clamp plate are the detachable in locating the through-hole of equal liftoff, the horizontal tangential direction of blank and the side of blank contact are located to the spacer pin. Compared with the prior art, the utility model discloses only need the clamping just once to accomplish processing, improved the machining efficiency of forging, foundry goods, save time reduces staff's intensity of labour.

Description

Special clamping tool for blank

Technical Field

The utility model belongs to the clamping equipment field, concretely relates to press from both sides tight special frock for blank.

Background

At present, hydraulic or pneumatic clamping is mostly adopted for clamping tools adopted when forgings and castings are machined, the structure is complex, and the cost is high. Particularly, when the forgings and the castings have complicated and irregular profiles and have hole characteristics, clamping tools with more complicated structures are needed, chatter vibration is possibly generated, multiple clamping is needed, the time consumption is high, the labor intensity is high, and the machining efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a press from both sides tight special frock for blank, whole processing system rigidity is strong, can not produce the shimmy man-hour, guarantees the processingquality of the complicated profile of forging, foundry goods type, only needs the clamping once just can accomplish processing to the processing of forging, the foundry goods that has complicated profile, has improved the machining efficiency of forging, foundry goods, saves time, reduces staff's intensity of labour.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a press from both sides tight special frock for blank, the blank is foundry goods or forging, the center department of blank is equipped with the through-hole, be equipped with the detachable locating piece on the blank and encircle the bulge loop of through-hole, the frock includes frock bottom plate, axial positioning dabber, locking fastening clamp plate and spacer pin, frock bottom plate, axial positioning dabber and locking fastening clamp plate top-down can dismantle the setting in proper order, the top that the blank was located to the frock bottom plate contacts with bulge loop and locating piece, axial positioning dabber and the equal detachable of locking fastening clamp plate are liftoff to be located in the through-hole, the spacer pin is located the horizontal tangential direction of blank and is contacted with the side of blank. The surface of the blank is not processed and can not be used as a reference surface, the top of the blank is provided with the convex ring and the positioning block, the tool bottom plate is prevented from being directly contacted with other parts of the blank, the bottom surface of the tool base plate can be used as the reference surface, the machining precision is improved, the limiting pin is horizontally fixed by adopting the existing equipment such as a support and the like, and the radial levelness of the blanks which are required to be machined in different batches is controlled and adjusted by utilizing the limiting pin.

The fixture comprises a positioning block, a positioning hole and an axial positioning core shaft, and is characterized in that the positioning block is provided with a plurality of positioning holes, the center of the axial positioning core shaft is provided with a core shaft connecting hole in a penetrating manner, the fixture base plate is provided with a plurality of base plate positioning holes matched with the positioning holes and a base plate connecting hole matched with the core shaft connecting hole in a penetrating manner, the positioning holes and the base plate positioning holes are provided with first fastening pieces in a penetrating manner, the core shaft connecting hole and the base plate connecting hole are provided with second fastening pieces, the center of a locking and fastening pressing plate is provided with a pressing plate connecting hole matched with.

The first fastener is an M8 standard socket head cap screw, the second fastener is an M12 standard socket head cap screw, the third fastener is an M12 standard socket head cap screw, and the stop pin is an M6 adjustable socket head cap screw.

The positioning block comprises a first positioning block and a second positioning block, the first positioning block is vertically arranged on the blank piece, the second positioning block is horizontally suspended at the end part of the first positioning block and is vertical to the first positioning block, and the positioning hole is arranged on the second positioning block.

The second positioning block is in a cuboid shape, and the positioning holes are formed in four corners of the second positioning block.

The positioning block is arranged adjacent to the convex ring.

The height of the convex ring is consistent with that of the positioning block, namely the top surface of the convex ring is flush with that of the positioning block, so that the tool bottom plate has more stress areas, and the stability of the tool bottom plate is improved.

The blank is provided with a plurality of connecting lugs along the radial direction, the connecting lugs are arranged around the convex ring, the limiting pin is in contact with the free ends of the connecting lugs, and the free ends are the end parts of the limiting pin on the side face of the blank.

The height of the convex ring is not less than the height of the connecting lug, namely the vertical height of the top surface of the convex ring is higher than that of the top surface of the connecting lug. This engaging lug probably needs follow-up processing again, and the upper surface of engaging lug generally sets to the curved surface moreover, makes the highly height that is not less than the engaging lug of bulge loop can avoid frock bottom plate and engaging lug contact, avoids the lifting surface area of frock bottom plate to reduce and regard as the reference surface with the face that has not yet processed the completion, makes the frock bottom plate unstable, influences the machining precision.

The cross section of the axial positioning core shaft is circular, the cross section of the locking and fastening pressure plate is circular, the diameter of the locking and fastening pressure plate is larger than that of the axial positioning core shaft, and the diameter of the locking and fastening pressure plate is consistent with the inner diameter of the through hole.

The tool bottom plate is made of steel, and the surface of the tool bottom plate is smooth and flat. The steel is special steel, and has better wear resistance and the like after a heat treatment process.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the tool is utilized to realize quick positioning and locking effects, the efficiency is improved, the precision is high, and the control reliability is strong.

(2) The application range is wide: the commonality is stronger, enlarges the application range of frock.

(3) The tool is simple in structure, low in manufacturing cost, convenient to operate, popular and easy to understand, easy to assemble and convenient to carry, and the manufacturing cost of the tool is greatly reduced.

(3) The service life is long: the service life of the tool is prolonged by adopting special steel and a reasonable heat treatment process.

Drawings

Fig. 1 is a schematic structural view of a clamping dedicated tool for a blank member.

In the figure: 1-a through hole; 2-a second fastener; 3, a tooling bottom plate; 301-bottom plate positioning holes; 302-baseplate connection hole; 4-a first fastener; 5-a blank piece; 6-positioning blocks; 601-positioning holes; 7-a limit pin; 8-axially positioning the mandrel; 801-mandrel connection hole; 9-locking and fastening the pressing plate; 901-platen attachment holes; 10-a third fastener; 11-a convex ring; 12-connecting lug.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Examples

As shown in fig. 1, a special clamping tool for a blank, the blank 5 is a casting or a forging, the top view is circular, a through hole 1 is formed in the center of the blank 5, other holes are formed in the blank 5 except the through hole 1, a detachable positioning block 6, a convex ring 11 surrounding the through hole 1 and a plurality of connecting lugs 12 (3 connecting lugs 12 are arranged in the embodiment, two of the connecting lugs 12 are flat angles, the other connecting lug 12 is located in a radial direction perpendicular to the flat angles) distributed in the radial direction and surrounding the convex ring 11 are arranged on the blank 5, the inner diameter of a circle formed by the convex ring 11 is smaller than that of the through hole 1, the positioning block 6 is L-shaped and comprises a first positioning block and a second positioning block, the first positioning block is vertically arranged on the blank 5, the second positioning block is horizontally suspended at the end of the first positioning block and perpendicular to the first positioning block, the positioning hole 601 is arranged on the second positioning block, the second positioning block is in a cuboid shape, positioning holes 601 (threads are arranged inside) are formed in four corners of the second positioning block, the positioning block 6 is arranged close to the convex ring 11, the height of the convex ring 11 is consistent with that of the positioning block 6, and the height of the convex ring 11 is not smaller than that of the connecting lug 12.

The tool comprises a tool bottom plate 3, an axial positioning mandrel 8, a locking fastening pressing plate 9 and a limiting pin 7, the tool bottom plate 3, the axial positioning mandrel 8 and the locking fastening pressing plate 9 are sequentially detachably arranged from top to bottom, the tool bottom plate 3 is arranged at the top of a blank 5 and is in contact with a convex ring 11 and a second positioning block, the axial positioning mandrel 8 and the locking fastening pressing plate 9 are both detachably arranged in a through hole 1, a mandrel connecting hole 801 (internally provided with threads) is arranged at the center of the axial positioning mandrel 8 in a penetrating manner, a plurality of bottom plate positioning holes 301 (internally provided with threads) matched with the positioning holes 601 and bottom plate connecting holes 302 (internally provided with threads) matched with the mandrel connecting holes 801 are arranged on the tool bottom plate 3 in a penetrating manner, first fastening pieces 4 are arranged in the positioning holes 601 and the bottom plate positioning holes 301, and second fastening pieces, a press plate connecting hole 901 (with threads inside) matched with the mandrel connecting hole 801 penetrates through the center of the locking and fastening press plate 9, a third fastener 10 is arranged in the press plate connecting hole 901 and the mandrel connecting hole 801, the first fastener 4 is an M8 standard socket head cap screw, the second fastener 2 is an M12 standard socket head cap screw, the third fastener 10 is an M12 standard socket head cap screw, the limiting pin 7 is an M6 adjustable socket head cap screw, the cross section of the tooling bottom plate 3 is rectangular, the cross section of the axial positioning mandrel 8 is circular, the cross section of the locking and fastening press plate 9 is circular, the diameter of the locking and fastening press plate 9 is larger than that of the axial positioning mandrel 8, the diameter of the locking and fastening press plate 9 is consistent with the inner diameter of the through hole 1, and the limiting pin 7 is arranged in the horizontal tangential direction of the blank 5 and is in contact with the side face of. The utility model provides an orientation indicator such as "top" is with the position that shows in figure 1 as the standard, just for the description convenience, and frock bottom plate 3 is not necessarily to be located blank 5's top in the use, presss from both sides tight blank 5 after, also can reverse blank 5 and frock bottom plate 3 and process.

When the tool works, the positioning block 6 is arranged on the blank 5 according to the requirement of a tool drawing, the axial positioning mandrel 8 and the locking fastening pressing plate 9 are sequentially placed into the through hole 1 of the blank 5, then the tool bottom plate 3 is arranged on the blank 5, the positioning block 6 is used for preliminary positioning of the tool bottom plate 3, then the blank 5, the tool bottom plate 3 and the like are arranged on the side edge of the limiting pin 7, the side surface of the free end of the connecting lug 12 is in contact with the horizontally arranged limiting pin 7, the radial parallelism of the blank 5 is adjusted through the limiting pin 7, the tool bottom plate 3 and the axial positioning mandrel 8 are fixed by the second fastening piece 2 after adjustment, the axial positioning mandrel 8 and the locking fastening pressing plate 9 are fixed by the third fastening piece 10, and therefore the blank 5 is clamped.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims

1. A special clamping tool for a blank piece is characterized in that the blank piece (5) is a casting or a forging piece, a through hole (1) is arranged at the center of the blank piece (5), a detachable positioning block (6) and a convex ring (11) surrounding the through hole (1) are arranged on the blank piece (5), the tool comprises a tool bottom plate (3), an axial positioning core shaft (8), a locking and fastening pressure plate (9) and a limiting pin (7), the tool bottom plate (3), the axial positioning core shaft (8) and the locking fastening pressure plate (9) are sequentially detachably arranged from top to bottom, the tooling bottom plate (3) is arranged at the top of the blank piece (5) and is contacted with the convex ring (11) and the positioning block (6), the axial positioning core shaft (8) and the locking fastening pressure plate (9) are both arranged in the through hole (1) in a separable way, the limiting pin (7) is arranged in the horizontal tangential direction of the blank piece (5) and is in contact with the side face of the blank piece (5).

2. The special clamping tool for the blank piece according to claim 1, a plurality of positioning holes (601) are arranged on the positioning block (6), a mandrel connecting hole (801) penetrates through the center of the axial positioning mandrel (8), a plurality of baseplate positioning holes (301) matched with the positioning holes (601) and baseplate connecting holes (302) matched with the mandrel connecting holes (801) are arranged on the tooling baseplate (3) in a penetrating manner, a first fastener (4) is arranged in the positioning hole (601) and the bottom plate positioning hole (301), a second fastener (2) is arranged in the mandrel connecting hole (801) and the bottom plate connecting hole (302), a pressing plate connecting hole (901) matched with the mandrel connecting hole (801) penetrates through the center of the locking fastening pressing plate (9), and a third fastener (10) is arranged in the pressure plate connecting hole (901) and the mandrel connecting hole (801).

3. A tooling special for clamping of blank according to claim 2, characterized in that the first fastener (4) is M8 standard socket head cap screw, the second fastener (2) is M12 standard socket head cap screw, the third fastener (10) is M12 standard socket head cap screw, and the limit pin (7) is M6 adjustable socket head cap screw.

4. The special clamping tool for the blank piece according to claim 2, wherein the positioning block (6) comprises a first positioning block and a second positioning block, the first positioning block is vertically arranged on the blank piece (5), the second positioning block is horizontally suspended at the end of the first positioning block and is vertical to the first positioning block, and the positioning hole (601) is arranged on the second positioning block.

5. The special clamping tool for the blank piece according to claim 4, wherein the second positioning block is rectangular, and the positioning holes (601) are arranged at four corners of the second positioning block.

6. Tool special for clamping of blanks according to claim 1, characterized in that said positioning block (6) is arranged adjacent to the collar (11).

7. The tooling special for clamping the blank according to claim 1, characterized in that the height of the convex ring (11) is consistent with the height of the positioning block (6).

8. The special clamping tool for the blank piece according to claim 1, wherein a plurality of connecting lugs (12) are arranged on the blank piece (5) in the radial direction, the connecting lugs (12) are arranged around the convex ring (11), and the limiting pin (7) is in contact with the free ends of the connecting lugs (12).

9. Tool for clamping blanks according to claim 8, characterized in that the height of the raised ring (11) is not less than the height of the connecting lugs (12).

10. The special clamping tool for the blank piece according to claim 1, wherein the cross section of the axial positioning mandrel (8) is circular, the cross section of the locking and fastening pressing plate (9) is circular, the diameter of the locking and fastening pressing plate (9) is larger than that of the axial positioning mandrel (8), and the diameter of the locking and fastening pressing plate (9) is consistent with the inner diameter of the through hole (1).