CN210359414U

CN210359414U - Special-shaped positioning and drilling tool clamp for excircle part

Info

Publication number: CN210359414U
Application number: CN201921392404.4U
Authority: CN
Inventors: 施长岗
Original assignee: Johnson Precision Engineering Suzhou Co Ltd
Current assignee: Johnson Precision Engineering Suzhou Co Ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-04-21
Anticipated expiration: 2029-08-26

Abstract

The utility model discloses an excircle part dysmorphism location drilling frock clamp, including bottom plate, mounting panel and curb plate, be equipped with a plurality of recesses on the mounting panel, be equipped with the location strip in the recess both sides, mounting strip upper portion is the fixed block, and the equipartition has the pilot pin that suits with excircle part opposite sex pore on the location strip, and the equipartition has the semicircle ring recess that suits with the circular boss of excircle part on the fixed block, by supreme tight piece of clamp and the briquetting of being equipped with in proper order down in the recess of mounting panel, briquetting upper portion is equipped with the inclined plane by supreme outside extension down with the bilateral symmetry that the tight piece of clamp contacted, the upper end symmetry of pressing from both sides tight piece is equipped with outside extension's platform, and the inboard is equipped with inside extension sand grip, and the sand grip offsets with the inclined. The clamp can realize automatic clamping and simultaneously clamp a plurality of workpieces, improves the clamping efficiency, reduces the working strength of workers, saves time and increases benefits.

Description

Special-shaped positioning and drilling tool clamp for excircle part

Technical Field

The utility model relates to a machine-building field, concretely relates to excircle part dysmorphism location drilling frock clamp.

Background

The machine tool clamping device is one of important process equipment which guarantees the machining quality, improves the production efficiency, lightens the labor intensity, reduces the over-high requirement on the technology of workers and realizes the automation of the production process. Machine tool clamping devices are widely used in manufacturing, and the use of a large number of special machine tool clamping devices provides a necessary condition for mass production. When the line is drawn on the workpiece, the four-jaw chuck is used for installing according to the line, and then the inner hole is processed. In the correction process, when two claws clamped on the cylindrical surface are adjusted, a workpiece rolls, so that the central line of the scribing hole generates angular displacement, the workpiece is difficult to correct, and processing waste products are generated. Therefore, the clamping device is designed and manufactured by people, and the effect is good through years of use.

With the rapid development of the processing and manufacturing industry, the requirements on the precision and the production efficiency of processing parts are higher, the processing mode that the working procedures are centralized in the processing, one person has a plurality of machines, and one machine has a plurality of parts is widely adopted. The requirements on the tool clamping devices are higher and higher, two advanced tool clamping devices, namely pneumatic and hydraulic, are provided, the traditional positioning mode of manual clamping adjustment is changed due to the advanced clamping modes, the machining precision is improved, the machining auxiliary time is shortened, and the production efficiency is improved.

For machining of mechanical products, time and labor are consumed in clamping products if batch products are machined singly, product precision and size consistency are difficult to guarantee, and efficiency is low. The existing clamping scheme is that a clamp is used for clamping a product for processing at the last time, the assembly and disassembly period is long, and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

To prior art's problem, the utility model provides an excircle part dysmorphism location drilling frock clamp, this device can realize self-holding and a plurality of work pieces of clamping simultaneously, improves clamping efficiency, reduces workman's working strength, save time, increases the interests.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a special-shaped positioning and drilling tool clamp for an excircle part comprises a bottom plate and a mounting plate, wherein two side plates are arranged between the bottom plate and the mounting plate, an air cylinder is arranged on the outer sides of the front end and the rear end of each of the two side plates, and the top end of a piston rod of each air cylinder is connected with a pressing plate through a pin; the mounting plate comprises a positioning strip, a fixing block, a clamping block and a pressing block, a plurality of grooves are formed in the mounting plate, a plurality of threaded holes are uniformly formed in the grooves, the positioning strip is arranged on two sides of each groove, the fixing block on the upper portion of the mounting strip is uniformly provided with positioning needles matched with the shape of an irregular hole of an excircle part, semicircular grooves matched with the size of a circular boss of the excircle part are uniformly formed in the side, close to the groove, of the fixing block, the clamping block and the pressing block are sequentially arranged in the grooves from bottom to top, threaded holes with the same size as the size of the inner threaded hole are formed in the middle positions of the clamping block and the pressing block, inclined planes extending from bottom to top to outside are symmetrically arranged on two sides, contacting with the clamping block, of the upper portion of the pressing block, the clamping block is a U-shaped clamping block, an outwardly extending platform is symmetrically arranged, the upper surface of the platform and the upper surface of the fixing block are located on the same horizontal plane and are provided with arc-shaped grooves matched with the sizes of the circular bosses, the circular bosses at the top ends of the circular parts are jointly fixed by the semicircular grooves and the arc-shaped grooves, and the positioning pins are used for fixing special-shaped holes at the bottom ends of the circular parts.

Furthermore, handles are arranged on the left side and the right side of the mounting plate.

Further, the cylinder is fixed through a cylinder supporting block fixed on the side plate.

The beneficial effects of the utility model reside in that:

the clamp can realize automatic clamping and simultaneously clamp a plurality of workpieces, improves the clamping efficiency, reduces the working strength of workers, saves time and increases benefits.

Drawings

FIG. 1 is a schematic view of a three-dimensional structure of the fixture for locating and rotating holes of an excircle component in an opposite sex manner;

fig. 2 is a schematic view of a three-dimensional structure of the mounting plate of the present invention;

fig. 3 is a schematic view of the sectional structure of the mounting plate according to the present invention;

FIG. 4 is a schematic view of the top view structure of the fixture for locating and rotating holes of different outer circle parts of the present invention;

fig. 5 is a schematic structural diagram of the outer circle part of the present invention.

Wherein, 1, fixing block; 2. an outer circle part; 3. a clamping block; 4. a screw; 5. briquetting; 6. a base plate; 7. a side plate; 8. a cylinder support block; 9. a cylinder; 10. a piston rod; 11, a pin 12 and a pressing plate; 13. a positioning bar; 14. positioning nails; 15. a handle; 16. mounting a plate; 21. a profiled hole; 22. a circular boss; 31. a platform; 32. and (4) raised strips.

Detailed Description

The special-shaped positioning and drilling tool clamp for the excircle part as shown in the figures 1-3 comprises a bottom plate 6 and a mounting plate 16, wherein two side plates 7 are arranged between the bottom plate 6 and the mounting plate 11, the outer sides of the front end and the rear end of each of the two side plates 7 are respectively provided with an air cylinder 9, and a piston rod 10 of each air cylinder 9 is connected with a pressing plate 12 through a pin; the mounting plate 16 is provided with a positioning strip 13, a fixing block 1, a clamping block 3 and a pressing block 5, the mounting plate 16 is provided with a plurality of grooves, a plurality of threaded holes are uniformly distributed in the grooves, the positioning strip 13 is arranged on two sides of each groove, the fixing block 1 on the upper part of the mounting strip 13 is uniformly provided with a positioning needle 14 matched with the shape of an anisotropic hole 21 of an excircle part 2, the fixing block 1 is uniformly provided with a semicircular groove matched with the size of a circular boss 22 of the excircle part close to the groove side, the clamping block 3 and the pressing block 5 are sequentially arranged in the grooves from bottom to top, threaded holes with the same size as the threaded holes in the grooves are arranged in the middle positions of the clamping block 3 and the pressing block 5, inclined planes extending outwards from bottom to top are symmetrically arranged on two sides of the upper part of the pressing block 5 contacted with the clamping block 3, the clamping block 3 is a U-shaped clamping, the inboard is equipped with inside extension sand grip 32, and sand grip 32 offsets with the inclined plane of briquetting 5, and platform 31 upper surface is located same horizontal plane with the upper surface of fixed block 1, and is equipped with the arc recess that suits with circular boss 22 size, and the circular boss 22 on 2 tops of circular part is fixed jointly to semicircle ring groove and arc recess, and pilot pin 14 is used for the dysmorphism hole 21 of fixed circular part bottom.

Handles 15 are arranged on the left side and the right side of the mounting plate 11.

The cylinder 9 is fixed by a cylinder support block 8 fixed on the side plate 7.

The clamping method of the special-shaped positioning and drilling tool clamp for the excircle part comprises the following steps:

1) limiting a workpiece, placing a round part on the mounting bar, extending the positioning pin into the special-shaped hole, and matching the round boss with the semicircular ring of the fixing block;

2) positioning a workpiece, sequentially placing a clamping block and a pressing block in the groove from bottom to top to enable the arc-shaped groove of the pressing block to be matched with the circular boss, then sequentially screwing a screw into the pressing block and the clamping block, pressing the pressing block to move downwards under the action of force, and enabling an outer side inclined plane of the pressing block to act on an inner side convex strip of the clamping block to enable the clamping block to expand and deform so as to clamp the circular part;

3) pressing the mounting plate, starting the cylinder, driving a cylinder piston to move downwards under the action of the cylinder, driving the pressing block to move downwards, enabling the pressing block to be attached to the mounting plate, and pressing the mounting plate;

4) and after clamping is finished, processing the workpiece.

In the description herein, references to the description of "one embodiment," "an example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The special-shaped positioning and drilling tool clamp for the excircle part is characterized by comprising a bottom plate and a mounting plate, wherein two side plates are arranged between the bottom plate and the mounting plate, an air cylinder is arranged on the outer sides of the front end and the rear end of each of the two side plates, and the top end of a piston rod of the air cylinder is connected with a pressing plate through a pin; the mounting plate comprises a positioning strip, a fixing block, a clamping block and a pressing block, a plurality of grooves are formed in the mounting plate, a plurality of threaded holes are uniformly formed in the grooves, the positioning strip is arranged on two sides of each groove, the fixing block on the upper portion of the mounting strip is uniformly provided with positioning needles matched with the shape of an irregular hole of an excircle part, semicircular grooves matched with the size of a circular boss of the excircle part are uniformly formed in the side, close to the groove, of the fixing block, the clamping block and the pressing block are sequentially arranged in the grooves from bottom to top, threaded holes with the same size as the size of the inner threaded hole are formed in the middle positions of the clamping block and the pressing block, inclined planes extending from bottom to top are symmetrically arranged on two sides, contacting with the clamping block, of the upper portion of the pressing block and the clamping block, the clamping block is a U-shaped clamping block, platforms extending outwards are symmetrically arranged on the upper ends of the clamping block, inwards extending, and the positioning pin is provided with an arc-shaped groove which is matched with the circular boss in size, the semicircular groove and the arc-shaped groove are used for fixing the circular boss at the top end of the circular part together, and the positioning pin is used for fixing the special-shaped hole at the bottom end of the circular part.

2. The special-shaped positioning and drilling tool clamp for the excircle part according to claim 1, wherein handles are arranged on the left side and the right side of the mounting plate.

3. The special-shaped positioning and drilling tool clamp for the excircle part as claimed in claim 1, wherein the cylinder is fixed through a cylinder supporting block fixed on the side plate.