CN212794056U

CN212794056U - Four-hole centering fixture

Info

Publication number: CN212794056U
Application number: CN202021766060.1U
Authority: CN
Inventors: 郭永斌; 王家星
Original assignee: Tianjin Taihesheng Intelligent Equipment Co ltd
Current assignee: Tianjin Taihesheng Intelligent Equipment Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-03-26
Anticipated expiration: 2030-08-21

Abstract

The utility model provides a four-hole centering fixture belongs to the anchor clamps field, including brill body seat, pivot, the tight iron in a left side, the tight iron in the right side and support, the support is fixed to be set up in the centre of brill body seat, and the pivot rotates and sets up on the support, the tight iron screw thread in a left side and the one end threaded connection of pivot, the tight iron screw thread in the right side and the other end threaded connection of pivot, and the tight iron in a left side and the tight iron in the right side slide to set up at the both ends of brill body seat, and the symmetry is provided with the through-hole on brill body seat, is provided. The beneficial effects of the utility model are that simple structure, convenient to use can guarantee the symmetry and the position size in hole, and positioning accuracy is high, improves machining efficiency.

Description

Four-hole centering fixture

Technical Field

The utility model belongs to the anchor clamps field especially relates to a four hole centering anchor clamps.

Background

The existing method for drilling holes in a workpiece is to use a tool to mark the center line of the hole in the workpiece to determine the position of the hole, check the hole by using a measuring tool such as a vernier caliper after marking is finished, if the position of the hole deviates, the hole needs to be determined again, the production efficiency is low, the symmetry of the hole cannot be completely ensured, and the external dimension of the workpiece directly influences the symmetry of the machined hole of the workpiece.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a four hole centering anchor clamps, can guarantee the position and the symmetry of drilling, improve production efficiency, the class is fixed on equipment such as lathe.

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a four hole centering anchor clamps, includes brill body seat, pivot, the tight iron in a left side, the tight iron in the right side and support, the support is fixed to be set up the centre of brill body seat, the pivot rotates to set up in the support, the tight iron cooperation in a left side sets up the one end of pivot, the tight iron cooperation in the right side sets up the other end of pivot, the tight iron in a left side with the tight iron slip in the right side sets up the both ends of brill body seat the symmetry is provided with the through-hole on the brill body seat be provided with the drill bushing in the through-hole.

Furthermore, be equipped with first keyway and second keyway on the drill body seat, first keyway with second keyway mutually perpendicular, the bottom of support is fixed to be set up in the second keyway the bilateral symmetry of first keyway is provided with the slide.

Furthermore, sliding tables are arranged on the left tightening iron and the right tightening iron and are arranged in the first key groove in a sliding mode.

Further, the slip table of the tight iron in a left side with all be equipped with the screw hole on the slip table of the tight iron in the right side, the one end of pivot is equipped with the left hand thread, the other end of pivot is equipped with the right screw thread, the tight iron in a left side with the left hand thread is connected, the tight iron in the right side with the right hand thread is connected.

Furthermore, a boss is arranged on the support, a rotating shaft through hole and a pin hole are formed in the boss, the lower end of the pin hole is communicated with the upper end of the rotating shaft through hole, the pin hole penetrates through the boss, and a pin is arranged in the pin hole.

Furthermore, a groove is formed between the left thread and the right thread and is matched with the pin, so that the rotating shaft is rotatably arranged in the support.

Furthermore, the number of the through holes is four, and the four through holes are respectively symmetrical to the center line of the drill body seat.

Further, the inboard of the tight iron of a left side with the inboard of the tight iron of the right side all is equipped with the tight piece of elasticity clamp, the tight piece of elasticity clamp is provided with a plurality ofly, the tight piece of elasticity clamp includes base and connecting rod, the one end activity of connecting rod sets up on the base, the fixed plate that is provided with of the other end of connecting rod the outside of connecting rod is provided with rubber, rubber is located the fixed plate with between the base.

Furthermore, a handle is arranged at one end, close to the left thread, of the rotating shaft, a handle through hole is formed in the handle, a handle fixing hole is formed in the rotating shaft, and the handle through hole and the handle fixing hole are fixed through a pin.

The utility model has the advantages and positive effects that: due to the adoption of the technical scheme, the left tightening iron and the right tightening iron can be clamped or loosened simultaneously by rotating the rotating shaft, so that the workpiece is always positioned in the middle of the drill body seat, the groove in the rotating shaft is matched with the pin on the support, the rotating shaft can only rotate axially on the support and does not move radially, through holes are symmetrically formed in the drill body seat, the position of the holes can be ensured, the symmetry degree of the holes can also be ensured, elastic clamping blocks are further arranged on the left tightening iron and the right tightening iron, and the drill body seat is applicable to workpieces in different shapes.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a view of the structure of the drill body seat of the present invention;

FIG. 3 is a view of the structure of the rotating shaft of the present invention;

FIG. 4 is a structural diagram of the tightening iron of the present invention;

FIG. 5 is a structural view of the bracket of the present invention;

fig. 6 is a diagram of the elastic clamping block of the present invention.

In the figure:

1. a handle; 101. a handle through hole; 2. tightening iron at the left; 3. a drill body seat; 301. a slideway; 302. a first keyway; 303. drilling a sleeve; 304. a second keyway; 305. a first fixing hole; 306. a first threaded hole; 4. a rotating shaft; 401. a handle fixing hole; 402. a groove; 403. a right thread; 404. a left thread; 5. a support; 501. a second threaded hole; 502. a second fixing hole; 503. a pin hole; 504. a through hole of the rotating shaft; 6. tightening iron on the right; 7. an elastic clamping block; 701. a base; 702. rubber; 703. a connecting rod; 704. and (7) fixing the plate.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

As shown in fig. 1 to 6, this embodiment provides a four-hole centering fixture, including brill body seat 3, pivot 4, the tight iron 2 in a left side, the tight iron 6 in the right side and support 5, support 5 is fixed to be set up in the centre of brill body seat 3, and pivot 4 rotates and sets up in support 5, and the tight iron 2 cooperation in a left side sets up the one end at pivot 4, and the tight iron 6 cooperation in the right side sets up the other end at pivot 4, and the tight iron 2 in a left side sets up the both ends at brill body seat 3 with the tight iron slip in the right side.

All be equipped with the slip table on tight iron 2 in a left side and the tight iron 6 in the right side, the tight iron 2 in a left side is "protruding" style of calligraphy with the tight iron 6 in the right side, all be equipped with the screw hole on the slip table of the tight iron 2 in a left side and the tight iron 6 in the right side, be equipped with left hand thread 404 in the one end of pivot 4, be equipped with right screw thread 403 at the other end of pivot 4, be equipped with recess 402 between left hand thread 404 and right screw thread 403, the tight iron 2 in a left side is connected with left hand thread 404, the tight iron 6 in the right side is connected with right.

The handle 1 is arranged at one end of the rotating shaft 4 close to the left thread 404, the handle through hole 101 is arranged on the handle 1, the handle fixing hole 401 is arranged on the rotating shaft 4, and the handle through hole 101 and the handle fixing hole 401 are fixed through a pin.

The support 5 is provided with a boss, the support 5 is in a shape like a Chinese character 'tu', the boss is provided with a rotating shaft through hole 504 and a pin hole 503, the lower end of the pin hole 503 is communicated with the upper end of the rotating shaft through hole 504, the pin hole 503 penetrates through the boss, a pin is arranged in the pin hole 503, a groove 402 on the rotating shaft 4 is matched with the pin in the pin hole 503 on the support 5, so that the rotating shaft 4 rotates in the support 5, and when the handle 1 is rotated, the rotating shaft 4 can only rotate axially in the support 5 but cannot move radially. The bracket 5 is symmetrically provided with a second screw hole 501 and a second fixing hole 502.

The drill body base 3 is provided with a first key groove 302 and a second key groove 304, the first key groove 602 and the second key groove 304 are perpendicular to each other and are positioned in the center of the drill body base 3, the second key groove 304 is symmetrically provided with a first fixing hole 305 and a first threaded hole 306, the second fixing hole 502 on the support 5 is fixed with the first fixing hole 305 on the drill body base 3 through a pin, the second threaded hole 501 on the support 5 is connected with the first threaded hole 306 on the drill body base 3 through a round head screw, so that the support 5 can be fixed on large equipment such as a machine tool, and the support 5 is fixedly arranged in the second key groove 304.

The slide 301 is symmetrically arranged on two sides of the first key groove 302, the bosses are symmetrically arranged on two sides of the slide 301, the bosses are consistent with the size of the slide 301, a workpiece can be stably placed on the drill body base 3, the sliding table of the left tight iron 2 and the sliding table of the right tight iron 6 are arranged in the first key groove 302 in a sliding mode, the left tight iron 2 is located at the left end of the drill body base 3, and the right tight iron 6 is located at the right end of the drill body base 3.

The drill body seat 3 is provided with four through holes which are respectively symmetrical with the center line of the drill body seat 3, and a drill bushing 303 is arranged in each through hole.

The elastic clamping block 7 is arranged at one end, adjacent to the right clamping iron 6, of the left clamping iron 2, the elastic clamping block 7 is provided with a plurality of elastic clamping blocks, each elastic clamping block 7 comprises a base 701 and a connecting rod 703, one end of each connecting rod 703 is movably arranged on the corresponding base 701, the other end of each connecting rod 703 is fixedly provided with a fixing plate 704, rubber 702 is arranged outside the corresponding connecting rod 703, and the rubber 702 is located between the fixing plate 704 and the corresponding base 701.

The working process of the example is as follows: selecting a centering drill and a drill bushing 303 with matched sizes, putting the centering drill into the drill bushing 303, putting a workpiece on a drill body seat 3, rotating a handle 1 to simultaneously close a left tightening iron 2 and a right tightening iron 6, clamping the workpiece, positioning and clamping the centering drill, then drilling the workpiece, reversely rotating the handle 1 after the workpiece is machined, simultaneously opening the left tightening iron 2 and the right tightening iron 6, and taking out the workpiece.

The utility model has the advantages that: the support 5 is fixedly arranged in the middle of the drill body seat 3, the two ends of the rotating shaft 4 are connected with the left tightening iron 2 and the right tightening iron 6 through the left thread 404 and the right thread 403, the rotating shaft 4 can only axially rotate on the support 5 and does not radially move through the matching of the groove 402 on the rotating shaft 4 and the pin on the support 5, the drill body seat 3 is also symmetrically provided with the slide ways 301, on one hand, the threaded connection of the left tightening iron 2 and the right tightening iron 6 with the rotating shaft 4 is realized, on the other hand, the left tightening iron 2 and the right tightening iron 6 can better realize the sliding, when the handle 1 is rotated, the left tightening iron 2 and the right tightening iron 6 are simultaneously clamped and opened, the workpiece can be always positioned in the middle of the drill body seat 3, the through holes are symmetrically arranged on the drill body seat 3, the symmetry degree and the position size of the drilling hole can be ensured, the left tightening iron 2 and the right tightening iron 6 are also provided with the elastic clamping blocks 7, the utility model is suitable for, convenient to use, positioning accuracy is high, can improve machining efficiency, alleviates intensity of labour.

While one or more embodiments of the present invention have been described in detail, the description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a four hole centering anchor clamps, its characterized in that, includes brill body seat (3), pivot (4), the tight iron (2) in a left side, the tight iron (6) in the right side and support (5), support (5) are fixed to be set up the centre of brill body seat (3), pivot (4) are rotated and are set up in support (5), the tight iron (2) cooperation in a left side sets up the one end of pivot (4), the tight iron (6) cooperation in the right side sets up the other end of pivot (4), the tight iron (2) in a left side with the tight iron (6) in the right side slides and sets up the both ends of brill body seat (3) the symmetry is provided with the through-hole on brill body seat (3) be provided with brill cover (303) in the through-hole.

2. A four-hole centering fixture as defined in claim 1, wherein: be equipped with first keyway (302) and second keyway (304) on drill body seat (3), first keyway (302) with second keyway (304) mutually perpendicular, the bottom of support (5) is fixed to be set up in second keyway (304) the bilateral symmetry of first keyway (302) is provided with slide (301).

3. A four-hole centering fixture as defined in claim 2, wherein: sliding tables are arranged on the left tightening iron (2) and the right tightening iron (6) and are arranged in the first key groove (302) in a sliding mode.

4. A four-hole centering fixture as defined in claim 3, wherein: the slip table of the tight iron (2) of a left side with all be equipped with the screw hole on the slip table of the tight iron (6) of the right side, the one end of pivot (4) is equipped with left hand thread (404), the other end of pivot (4) is equipped with right screw thread (403), the tight iron (2) of a left side with left hand thread (404) are connected, the tight iron (6) of the right side with right screw thread (403) are connected.

5. A four-hole centering fixture as defined in claim 4, wherein: the support (5) is provided with a boss, the boss is provided with a rotating shaft through hole (504) and a pin hole (503), the lower end of the pin hole (503) is communicated with the upper end of the rotating shaft through hole (504), the pin hole (503) penetrates through the boss, and a pin is arranged in the pin hole (503).

6. A four-hole centering fixture as defined in claim 5, wherein: a groove (402) is arranged between the left thread (404) and the right thread (403), and the groove (402) is matched with the pin, so that the rotating shaft (4) is rotatably arranged in the bracket (5).

7. A four-hole centering fixture as defined in claim 1, wherein: the number of the through holes is four, and the four through holes are respectively symmetrical to the center line of the drill body seat (3).

8. A four-hole centering fixture as defined in claim 1, wherein: the inner side of the left tightening iron (2) and the inner side of the right tightening iron (6) are both provided with elastic clamping blocks (7), the elastic clamping blocks (7) are provided with a plurality of elastic clamping blocks, each elastic clamping block (7) comprises a base (701) and a connecting rod (703), one end of each connecting rod (703) is movably arranged on the base (701), the other end of each connecting rod (703) is fixedly provided with a fixing plate (704), rubber (702) is arranged outside each connecting rod (703), and the rubber (702) is located between the fixing plate (704) and the base (701).

9. A four-hole centering fixture as defined in claim 4, wherein: the handle is characterized in that a handle (1) is arranged at one end, close to the left thread (404), of the rotating shaft (4), a handle through hole (101) is formed in the handle (1), a handle fixing hole (401) is formed in the rotating shaft (4), and the handle through hole (101) is fixed with the handle fixing hole (401) through a pin.