CN212526939U - High-symmetry arc-shaped long round hole machining device - Google Patents

Abstract

The utility model discloses a high-symmetry arc long round hole processing device, which comprises a bottom plate, wherein a backing plate, a positioning sleeve, a quick-acting piece and a pressing plate are sequentially arranged above the bottom plate from bottom to top as a workpiece to be processed; the double-headed bolt with the shoulder is connected with the bottom plate after sequentially penetrating through the pressing plate, the quick acting sheet, the positioning sleeve and the base plate from top to bottom; the upper part of the double-headed bolt with the shoulder is connected with a nut with the shoulder; the nut with the shoulder is tightly contacted with the top surface of the pressure plate; the middle part of the front end of the base plate is provided with a wedge block guide groove; a compression wedge block is arranged in the wedge block guide groove and is in sliding fit with the wedge block guide groove; the left side and the right side of the upper part of the compression wedge block are respectively provided with a swinging pressing block; the front end of each swinging pressing block is hinged with the top of the backing plate; the rear ends of the two swinging pressing blocks are in contact with the inner walls of two sides of the U-shaped opening at the front end of the quick acting piece. The utility model discloses can fix a position the U type opening of quick-action piece one end accurately, reliably, be favorable to promoting the machining precision of arc slotted hole.

Description

High-symmetry arc-shaped long round hole machining device

Technical Field

The utility model relates to a machining technical field especially relates to a high symmetry arc slotted hole processingequipment.

Background

The quick acting piece is a key action component for switching on and off a contact in a contact seat assembly of a railway signal switch machine product, and as shown in figure 1, the appearance of the quick acting piece 100 is circular, the upper end of the excircle of the quick acting piece 100 is provided with a U-shaped opening 101 which is symmetrical about the circle center, and the circular ring at the other side opposite to the U-shaped opening is provided with an arc-shaped long circular hole 102 which is symmetrical with the U-shaped opening 101 and the circle center at the same time; at present, according to the requirement of assembly action, an arc-shaped long circular hole 102 and a U-shaped opening 101 are required to be symmetrically arranged by a central hole 103 of a quick acting piece 100;

however, because the tolerance of the U-shaped opening 101 of the snap-acting piece 100 is large, the U-shaped opening 101 of the snap-acting piece 100 cannot be accurately positioned by a common positioning method, and thus, the machining precision of the arc-shaped oblong hole 102 in the prior art cannot meet the requirement of symmetry, and therefore, an arc-shaped oblong hole machining device needs to be designed to meet the requirement of machining precision of the arc-shaped oblong hole.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high symmetry arc slotted hole processingequipment to the technical defect that prior art exists.

Therefore, the utility model provides a high symmetry arc slotted hole processingequipment, including bottom plate, backing plate, clamp plate, position sleeve, take shoulder stud, take shoulder nut, swing briquetting and compress tightly the voussoir, wherein:

a base plate, a positioning sleeve, a quick-acting sheet serving as a workpiece to be processed and a pressing plate are sequentially arranged above the horizontally distributed bottom plate from bottom to top;

the quick-acting sheet is sleeved on the outer wall of the upper part of the positioning sleeve;

the double-headed bolt with the shoulder is fixedly connected with the thread of the bottom plate after sequentially passing through the pressing plate, the quick acting sheet, the positioning sleeve and the base plate from top to bottom;

the upper part of the double-headed bolt with the shoulder is connected with a nut with the shoulder;

the nut with the shoulder is tightly contacted with the top surface of the pressure plate;

wherein, the middle part of the front end of the base plate is provided with longitudinally distributed wedge block guide grooves;

a compression wedge block which is longitudinally distributed is arranged in the wedge block guide groove, and the lower part of the compression wedge block is in sliding fit with the wedge block guide groove;

the left side and the right side of the upper part of the compression wedge block are respectively provided with a swinging pressing block;

the two swing pressing blocks are distributed in a left-right symmetrical mode;

the front end of each swinging pressing block is hinged with the top of the base plate;

the rear ends of the two swinging pressing blocks are positioned in the U-shaped opening at the front end of the quick acting piece and are in contact with the inner walls of the two sides of the U-shaped opening at the front end of the quick acting piece;

the rear end of the upper part of the pressing wedge block is positioned in the U-shaped opening at the front end of the quick-acting sheet.

Wherein, the central part of the bottom plate is provided with a positioning sleeve mounting hole;

the bottom plate is provided with a shoulder stud mounting hole at a position coaxial with the positioning sleeve mounting hole;

two first limiting block mounting holes and two first swinging pressing block mounting holes are symmetrically formed in the left and right of the front end of the bottom plate;

two first stopper mounting holes and two first swing briquetting mounting holes are located the position of position sleeve mounting hole dead ahead.

Wherein, the front end of the bottom plate is provided with a bottom plate U port;

and a fastening plate mounting hole is formed in the U port of the bottom plate and used for connecting the lower end of one fastening plate through a bolt.

Wherein, the front end of the compression wedge block is connected with the rear end of a knurled screw which is longitudinally distributed;

the knurled screw is connected with a U-shaped opening of the bottom plate at the front end of the bottom plate through a fastening plate;

the upper side and the lower side of the fastening plate are respectively provided with a fastening plate threaded hole and a fastening plate counter bore;

the knurled screw longitudinally penetrates through the threaded hole of the fastening plate;

and the fastening plate counter bore on the fastening plate is in threaded connection with the fastening plate mounting hole in the U-shaped opening of the bottom plate at the front end of the bottom plate through a bolt.

The rear end of the backing plate is provided with a top opening at a position corresponding to the processing position of the arc-shaped long circular hole on the quick acting disc serving as a workpiece to be processed;

a positioning sleeve through hole is formed in the base plate at a position corresponding to the positioning sleeve mounting hole of the bottom plate;

the shoulder stud bolt sequentially passes through a center hole in the quick acting piece, the positioning sleeve and a positioning sleeve through hole of the base plate, is in threaded connection with a shoulder stud bolt mounting hole in the base plate and is screwed in the shoulder stud bolt mounting hole;

the bottom surface of the shoulder part of the double-headed bolt with the shoulder compresses the top surface of the positioning sleeve.

The base plate is provided with two first limit block mounting holes and two first swinging press block mounting holes at positions corresponding to the two first limit block mounting holes and the two first swinging press block mounting holes on the base plate;

a transversely distributed limiting block is arranged on the top surface of the compression wedge block;

the limiting block is provided with a mounting counter bore at a position corresponding to the second limiting block mounting hole of the base plate;

the mounting counter bore of the limiting block and the mounting hole of the second limiting block of the backing plate vertically penetrate through the inner hexagon screw and are fixedly connected with the mounting hole of the first limiting block on the bottom plate through the inner hexagon screw;

and a wedge block guide groove is formed in the position between the two swinging pressing block mounting holes.

The compression wedge block faces to the rear end part of the quick action piece and is provided with extruding inclined planes which are bilaterally symmetrical;

clamping grooves are formed in the middle of the left side and the right side of the compression wedge block;

the front end part of the pressing wedge block, which is far away from the quick-acting piece, is provided with an inward-concave anti-falling mounting hole;

the rear end part of the knurled screw is provided with an anti-falling clamping groove;

and the anti-falling clamping groove of the knurled screw is connected with the anti-falling mounting hole on the compression wedge block.

The limiting block is provided with a pin hole at a position corresponding to the second swing pressing block mounting hole;

the lower part of the limiting block is provided with a hollow swinging gap for accommodating the front parts of the two swinging pressing blocks and the middle part of the pressing wedge block;

the front end of the swinging pressing block is hinged with the backing plate through a pin.

Wherein, the front part of the swinging pressing block is provided with a pin shaft mounting hole;

the pin sequentially passes through a pin shaft mounting hole on the swinging pressing block, a pin hole on the limiting block and a second swinging pressing block mounting hole on the backing plate and then is connected with the first swinging pressing block mounting hole on the bottom plate;

the outer edge of the swinging pressing block, which is concentric with the pin shaft mounting hole, is provided with an arc surface convenient for the swinging pressing block to rotate;

an arc-shaped bulge is arranged at the position of the swing pressing block corresponding to the clamping groove in the middle of the pressing wedge block;

the swinging pressing block is arranged at the rear side of the arc-shaped bulge and is provided with a pressure bearing surface with the inclination consistent with that of the extrusion inclined plane at the rear end part of the pressing wedge block;

the swinging pressing block is provided with a centering circular surface on the other side opposite to the pressure bearing surface.

Wherein, the middle part of the right end of the pressing plate is provided with a pressing plate opening which is convenient to assemble and disassemble.

By above the utility model provides a technical scheme is visible, compares with prior art, the utility model provides a high symmetry arc slotted hole processingequipment, its structural design science can be accurate, fix a position the U type opening of quick-operation piece one end reliably to when the arc slotted hole that is located the quick-operation piece other end through outside machine tool machining, can satisfy the symmetry requirement of arc slotted hole, promote the machining precision of arc slotted hole, have important production practice meaning.

Drawings

FIG. 1a is a top view of a snap tab as a workpiece to be machined;

FIG. 1b is a left side view of a snap tab as a workpiece to be machined;

fig. 2a is a top view of the high-symmetry arc-shaped long circular hole processing device provided by the present invention;

FIG. 2b is a cross-sectional view taken along line A-A of FIG. 2 a;

FIG. 2c is a cross-sectional view taken along line B-B of FIG. 2 a;

fig. 3 is a top view of the high-symmetry arc-shaped long circular hole processing device provided by the present invention after the stop block, the pressing plate, the shoulder stud bolt and the shoulder nut are removed;

fig. 4a is a top view of a bottom plate in the high-symmetry arc-shaped long circular hole processing device provided by the present invention;

fig. 4b is a front view of a bottom plate in the high-symmetry arc-shaped long circular hole processing device provided by the present invention;

fig. 5a is a top view of a backing plate in the high-symmetry arc-shaped long circular hole processing device provided by the present invention;

FIG. 5b is a cross-sectional view taken along line C-C of FIG. 5 a;

fig. 6 is a longitudinal sectional view of a positioning sleeve in the high-symmetry arc-shaped long circular hole processing device provided by the present invention;

fig. 7a is a top view of a shoulder stud in the high symmetry arc-shaped long circular hole machining device provided by the present invention;

fig. 7b is a side view of a shoulder stud in the high-symmetry arc-shaped long circular hole machining device provided by the present invention;

fig. 8a is a top view of a stopper in the high-symmetry arc-shaped long circular hole processing device provided by the present invention;

FIG. 8b is a cross-sectional view taken along line D-D of FIG. 8 a;

fig. 9a is a top view of the swinging pressing block located on the right side in the high-symmetry arc-shaped long circular hole processing device provided by the present invention;

FIG. 9b is a cross-sectional view taken along line E-E of FIG. 9 a;

fig. 10a is a top view of a pressing wedge in the high-symmetry arc-shaped long circular hole processing device provided by the present invention;

FIG. 10b is a cross-sectional view taken along line F-F of FIG. 10 a;

fig. 11 is a side view of a pin shaft in the high-symmetry arc-shaped long circular hole machining device provided by the present invention;

fig. 12 is a side view of a knurled screw in the high-symmetry arc-shaped long circular hole machining device provided by the present invention;

fig. 13a is a top view of a fastening plate in the high-symmetry arc-shaped long circular hole processing device provided by the present invention;

FIG. 13b is a cross-sectional view taken along line G-G of FIG. 13 a;

fig. 14a is a top view of a pressing plate in the high-symmetry arc-shaped long circular hole processing device provided by the present invention;

fig. 14b is a front view of a pressing plate in the high-symmetry arc-shaped long circular hole processing device provided by the present invention;

in the figure, 1, a bottom plate, 2, a backing plate, 3, a pressure plate, 4, a positioning sleeve and 5, a stud bolt with a shoulder are arranged;

6. the nut with the shoulder, 7, the limiting block, 8, the fastening plate, 9, the knurled screw and 10, the swinging pressing block;

11. the clamping device comprises a pressing wedge block, 12 pin shafts, 13 positioning sleeve mounting holes, 14 first shoulder stud mounting holes, 15 first limiting block mounting holes;

16. 17, a bottom plate U-shaped opening, 18, a fastening plate mounting hole, 19, a top opening and 20, a positioning sleeve through hole;

21. shoulder, 22, pressure plate opening, 23, mounting counter bore, 24, pin hole, 25, swing gap;

26. a pin shaft mounting hole, 27, an arc surface, 28, a second limiting block mounting hole, 29, a second swinging pressing block mounting hole and 30, a wedge block guide groove;

31. extruding the inclined plane, 32, clamping grooves, 33, anti-falling mounting holes, 34, anti-falling clamping grooves and 35, arc-shaped protrusions;

36. pressure bearing face, 37. centering circular face;

100. the quick acting plate comprises a quick acting plate, 101 a U-shaped opening, 102 an arc-shaped long circular hole and 103 a central hole;

81. and fastening plate threaded holes, 82, fastening plate counter bores.

Detailed Description

In order to make the technical means of the present invention easier to understand, the present application will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

It should be noted that in the description of the present application, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

In addition, it should be noted that, in the description of the present application, unless otherwise explicitly specified and limited, the term "mounted" and the like should be interpreted broadly, and may be, for example, either fixedly mounted or detachably mounted.

The specific meaning of the above terms in the present application can be understood by those skilled in the art as the case may be.

Referring to fig. 1a to 14b, the utility model provides a high symmetry arc slotted hole processingequipment, including bottom plate 1, backing plate 2, clamp plate 3, position sleeve 4, take shoulder stud 5, take shoulder nut 6, swing briquetting 10 and compress tightly voussoir 11, wherein:

a base plate 2, a positioning sleeve 4, a quick acting piece 100 serving as a workpiece to be processed and a pressing plate 3 are sequentially arranged above the bottom plate 1 which is horizontally distributed from bottom to top;

the quick acting plate 100 is sleeved on the outer wall of the upper part of the positioning sleeve 4 (specifically, the central hole 103 of the quick acting plate 100 is sleeved on the positioning sleeve 4);

the double-headed bolt 5 with the shoulder is fixedly connected with the bottom plate 1 through threads after sequentially penetrating through the pressure plate 3, the quick acting plate 100, the positioning sleeve 4 and the base plate 2 from top to bottom;

the upper part of the double-headed bolt with shoulder 5 is connected with a nut with shoulder 6;

the shoulder nut 6 is tightly contacted with the top surface of the pressure plate 3;

wherein, the middle part of the front end of the backing plate 2 is provided with longitudinally distributed wedge block guide grooves 30;

a compression wedge 11 which is longitudinally distributed is arranged in the wedge guide groove 30, and the lower part of the compression wedge 11 is in sliding fit with the wedge guide groove 30;

the left side and the right side of the upper part of the pressing wedge block 11 are respectively provided with a swinging pressing block 10;

the two swing pressing blocks 10 are distributed in bilateral symmetry;

the front end of each swinging pressing block 10 is hinged with the top of the backing plate 2 (through a pin shaft 12);

the rear ends of the two swinging pressing blocks 10 are positioned in the U-shaped opening 101 at the front end of the quick acting piece 100 and are in contact with the inner walls of the two sides of the U-shaped opening 101 at the front end of the quick acting piece 100;

the upper rear end of the hold-down wedge 11 is located in a U-shaped opening 101 in the front end of the quick acting plate 100.

The utility model discloses in, on specifically realizing, bottom plate 1 places on the horizontal table.

In the present invention, in terms of specific implementation, referring to fig. 4a and 4b, a positioning sleeve mounting hole 13 is provided at the central portion of the bottom plate 1;

the bottom plate 1 is provided with a shoulder stud mounting hole 14 at a position coaxial with the positioning sleeve mounting hole 13;

two first limiting block mounting holes 15 and two first swinging pressing block mounting holes 16 are symmetrically arranged at the left and right of the front end of the bottom plate 1;

two first limiting block mounting holes 15 and two first swinging pressing block mounting holes 16 are positioned right in front of the positioning sleeve mounting hole 13.

In the concrete implementation, the front end of the bottom plate 1 is provided with a bottom plate U-shaped opening 17;

a fastening plate mounting hole 18 is formed in the bottom plate U opening 17, and is used for connecting the lower end of one fastening plate 8 through a bolt, as shown in fig. 2c and fig. 3.

In a specific implementation, as shown in fig. 2a and 2c, the front end of the compression wedge 11 is connected with the rear end of a knurled screw 9 which is longitudinally distributed;

the knurled screw 9 is connected with a bottom plate U-shaped opening 17 at the front end of the bottom plate 1 through a fastening plate 8.

In a specific implementation, referring to fig. 13a and 13b, the upper side and the lower side of the fastening plate 8 are respectively provided with a fastening plate threaded hole 81 and a fastening plate counter bore 82;

a knurled screw 9 longitudinally penetrating through the fastening plate threaded hole 81;

the fastening plate counter bore 82 on the fastening plate 8 is in threaded connection with the fastening plate mounting hole 18 in the bottom plate U opening 17 at the front end of the bottom plate 1 through a bolt.

The utility model discloses in, in the concrete realization, the rear end of backing plate 2 is equipped with open-top 19 (this arc slotted hole 102 is the round hole of treating processing) in the position that corresponds with the processing position of arc slotted hole 102 on the quick-action piece 100 as the work piece of treating processing.

The utility model discloses in, in the concrete realization, on backing plate 2, in the position corresponding with position sleeve mounting hole 13 of bottom plate 1, be equipped with position sleeve through hole 20.

The shoulder stud bolt 5 sequentially penetrates through the center hole 103 in the quick acting piece 100, the positioning sleeve 4 and the positioning sleeve through hole 20 of the cushion plate 2, is in threaded connection with the shoulder stud bolt mounting hole 14 in the base plate 1, and is screwed in the shoulder stud bolt mounting hole 14.

In concrete implementation, the bottom surface of the shoulder 21 of the shoulder stud bolt 5 compresses the top surface of the positioning sleeve 4.

In concrete implementation, the backing plate 2 is provided with two second limiting block mounting holes 28 and two second swinging press block mounting holes 29 at positions corresponding to the two first limiting block mounting holes 15 and the two first swinging press block mounting holes 16 on the bottom plate 1.

In the concrete implementation, a transversely distributed limiting block 7 is arranged on the top surface of the compression wedge block 11;

the limiting block 7 is provided with a mounting counter bore 23 (namely a socket head cap screw mounting hole) at a position corresponding to the second limiting block mounting hole 28 of the backing plate 2;

the mounting counter bore 23 of the limiting block 7 and the second limiting block mounting hole 28 of the backing plate 2 vertically penetrate through the socket head cap screw and are fixedly connected with the first limiting block mounting hole 15 on the bottom plate 1 through the socket head cap screw.

In concrete implementation, a wedge block guide groove 30 is formed in the position between the two swinging press block mounting holes 29.

The utility model discloses in, on specifically realizing, compress tightly voussoir 11 and be the cuboid form, width dimension and the corresponding matching of voussoir guide way 30, both are sliding fit.

In the present invention, in a specific implementation, the pressing wedge 11 is provided with extruding inclined planes 31 which are bilaterally symmetrical towards the rear end of the quick acting plate 100;

clamping grooves 32 are formed in the middle of the left side and the right side of the compression wedge block 11;

the front end part of the pressing wedge block 11, which is far away from the quick-acting piece 100, is provided with an inward-concave anti-falling mounting hole 33;

the rear end part (namely the small end) of the knurled screw 9 is provided with an anti-falling clamping groove 34;

the anti-falling clamping groove 34 of the knurled screw 9 is connected with the anti-falling mounting hole 33 on the pressing wedge 11 (specifically, the knurled screw 9 is rotatably and movably clamped, and the rear end of the knurled screw 9 can rotate in the anti-falling mounting hole 33).

In the present invention, in a specific implementation, the position of the limiting block 7 corresponding to the second swinging pressing block mounting hole 29 is provided with a pin hole 24;

the lower part of the limiting block 7 is provided with a hollow swinging gap 25 for accommodating the front parts of the two swinging pressing blocks 10 and the middle part of the pressing wedge block 11;

the front end of the swinging pressing block 10 is hinged with the backing plate 2 through a pin 12.

It should be noted that the swinging pressing block 10 is fixed between the limiting block 7 and the backing plate 2 through the pin 12, and can rotate around the pin 12 within the range of the swinging gap 25 at the lower part of the limiting block 7.

In particular, referring to fig. 9a and 9b, the front portion of the swinging pressing block 10 has a pin shaft mounting hole 26;

the pin 12 sequentially passes through the pin shaft mounting hole 26 on the swinging press block 10, the pin hole 24 on the limiting block 7 and the second swinging press block mounting hole 29 on the backing plate 2, and then is connected with the first swinging press block mounting hole 16 on the base plate 1.

Thus, the oscillating mass 10 can be rotated about the pin 12.

In the present invention, in the specific implementation, as shown in fig. 9a and 9b, the outer edge of the swinging pressing block 10 concentric with the pin shaft mounting hole 26 is provided with an arc surface 27 facilitating the rotation of the swinging pressing block;

an arc-shaped bulge 35 is arranged at the position of the swing pressing block 10 corresponding to the clamping groove 32 in the middle of the pressing wedge block 11;

the swinging pressing block 10 is provided with a pressure bearing surface 36 with the same inclination as the extrusion inclined surface 31 at the rear end part of the pressing wedge block 11 at the rear side of the arc-shaped bulge 35;

the oscillating press block 10 is provided with a centering circular surface 37 on the other side opposite to the pressure receiving surface 36.

The utility model discloses in, on specifically realizing, the clamp plate opening 22 that is convenient for load and unload is opened at the right-hand member middle part of clamp plate 3.

In order to understand the technical solution of the present invention more clearly, the operation principle of the present invention is explained below.

Firstly, the device of the utility model is arranged on a horizontal workbench, a quick-acting sheet 100 as a workpiece to be processed is sleeved on the outer wall of a positioning sleeve 4, and the end surface is closely attached to a backing plate 2;

then, the knurled screw 9 is rotated, so that the compression wedge 11 is pushed to longitudinally slide backwards along the wedge guide groove 30, the swinging pressing block 10 is respectively pushed towards the left and right directions through the extrusion inclined plane 31 at the rear end of the compression wedge 11, so that the centering circular surface 37 of the swinging pressing block 10 is contacted with two positioning surfaces (namely the inner walls at two sides of the U-shaped opening 101) of the quick acting piece 100 serving as a workpiece to be processed, and at the moment, the left and right positioning surfaces of the quick acting piece 100 are symmetrical about the center line of the device, and the positioning work is completed;

then, the bottom plate opening 22 of the pressing plate 3 is placed rightwards, the pressing plate is installed on the shoulder stud bolt 5, and the shoulder nut 6 is screwed, so that the positioning and clamping work of the quick-acting piece 100 serving as a workpiece to be processed on the device is completed;

finally, an external machine tool is started to complete the machining operation of the arc-shaped oblong hole 102 at the rear end of the quick acting piece 100 as the workpiece to be machined through the top opening at the rear end of the shim plate 2.

It should be noted that, the method for processing the arc-shaped oblong hole by the machine tool is an existing processing method, and is not described herein again.

After the processing is finished, when the workpiece is disassembled, the shoulder nut 6 is unscrewed, the pressing plate 3 is disassembled, the knurled screw 9 is unscrewed, at this time, the pressing wedge block 11 longitudinally moves forwards, the swinging pressing block 10 is far away from the positioning surface of the quick acting piece 100 (namely the inner walls of the two sides of the U-shaped opening 101) under the action of the clamping groove 32 on the pressing wedge block 11 on the arc-shaped protrusion 35, and the quick acting piece 100 is disassembled at this time.

Compared with the prior art, the utility model provides a high symmetry arc slotted hole processingequipment has following beneficial effect:

1. the extrusion inclined planes 31 on the left side and the right side of the compression wedge block 11 of the utility model are symmetrically distributed on the left side and are matched with the wedge block guide groove 30 on the base plate 2 (specifically, are matched in a sliding way), so that the offset of the swing pressing block 10 to the left side and the right side is ensured to be equal, and the U-shaped opening 101 on the quick acting piece 100 as a workpiece to be processed is accurately positioned;

2. the utility model discloses a compress tightly and be equipped with draw-in groove 32 on the voussoir 11, cooperate with the arc arch 35 on the swing briquetting 10, make swing briquetting 10 can follow the advance and retreat that compresses tightly voussoir 11, adjust as the size of the location size of U type opening 101 on the quick-action piece 100 of treating the processing work piece, realize the zero clearance positioning to U type open-ended.

3. The technical scheme of the utility model, can realize the zero clearance location to U type opening 101 on the fast-moving piece 100 that dimensional tolerance is big, the utility model discloses a convenient operation is swift, is favorable to guaranteeing the accurate reliable of processing of lathe, has improved the machining efficiency to the arc slotted hole on the fast-moving piece 100 greatly.

To sum up, compare with prior art, the utility model provides a pair of high symmetry arc slotted hole processingequipment, its structural design science can be accurate, fix a position the U type opening of quick-action piece one end reliably to when being located the arc slotted hole of the quick-action piece other end through outside machine tool machining, can satisfy the symmetry requirement of arc slotted hole, promote the machining precision of arc slotted hole, have the meaning of great production practice.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a high symmetry arc slotted hole processingequipment which characterized in that, includes bottom plate (1), backing plate (2), clamp plate (3), position sleeve (4), takes shoulder stud (5), takes shoulder nut (6), swing briquetting (10) and compresses tightly voussoir (11), wherein:

a base plate (2), a positioning sleeve (4), a quick-acting sheet (100) serving as a workpiece to be processed and a pressing plate (3) are sequentially arranged above the horizontally distributed bottom plate (1) from bottom to top;

the quick-acting sheet (100) is sleeved on the outer wall of the upper part of the positioning sleeve (4);

the double-headed bolt (5) with the shoulder is fixedly connected with the bottom plate (1) through threads after sequentially penetrating through the pressure plate (3), the quick-acting sheet (100), the positioning sleeve (4) and the base plate (2) from top to bottom;

the upper part of the double-headed bolt with shoulder (5) is connected with a nut with shoulder (6);

the shoulder nut (6) is tightly contacted with the top surface of the pressure plate (3);

wherein, the middle part of the front end of the backing plate (2) is provided with longitudinally distributed wedge block guide grooves (30);

a compression wedge block (11) which is longitudinally distributed is arranged in the wedge block guide groove (30), and the lower part of the compression wedge block (11) is in sliding fit with the wedge block guide groove (30);

the left side and the right side of the upper part of the pressing wedge block (11) are respectively provided with a swinging pressing block (10);

the two swing pressing blocks (10) are distributed in bilateral symmetry;

the front end of each swinging pressing block (10) is hinged with the top of the backing plate (2);

the rear ends of the two swinging pressing blocks (10) are positioned in the U-shaped opening (101) at the front end of the quick acting piece (100) and are in contact with the inner walls of the two sides of the U-shaped opening (101) at the front end of the quick acting piece (100);

the rear end of the upper part of the pressing wedge block (11) is positioned in a U-shaped opening (101) at the front end of the quick-acting sheet (100).

2. The high-symmetry arc-shaped long round hole machining device according to claim 1, wherein a locating sleeve mounting hole (13) is formed in the center of the bottom plate (1);

the bottom plate (1) is provided with a shoulder stud mounting hole (14) at a position coaxial with the positioning sleeve mounting hole (13);

two first limiting block mounting holes (15) and two first swinging pressing block mounting holes (16) are symmetrically arranged at the left and right of the front end of the bottom plate (1);

two first limiting block mounting holes (15) and two first swinging pressing block mounting holes (16) are positioned right in front of the positioning sleeve mounting hole (13).

3. The processing device for the high-symmetry arc-shaped long round holes as claimed in claim 1, wherein a bottom plate U-shaped opening (17) is formed at the front end of the bottom plate (1);

and a fastening plate mounting hole (18) is formed in the U-shaped opening (17) of the bottom plate and is used for connecting the lower end of one fastening plate (8) through a bolt.

4. A high symmetry arc-shaped long round hole processing device as claimed in claim 3, wherein the front end of the compression wedge (11) is connected with the rear end of a knurled screw (9) which is longitudinally distributed;

the knurled screw (9) is connected with a bottom plate U-shaped opening (17) at the front end of the bottom plate (1) through a fastening plate (8);

the upper side and the lower side of the fastening plate (8) are respectively provided with a fastening plate threaded hole (81) and a fastening plate counter bore (82);

the knurled screw (9) longitudinally penetrates through the fastening plate threaded hole (81);

a fastening plate counter bore (82) on the fastening plate (8) is in threaded connection with a fastening plate mounting hole (18) in a bottom plate U-shaped opening (17) at the front end of the bottom plate (1) through a bolt.

5. The high-symmetry arc-shaped long round hole processing device as claimed in claim 1, wherein the back end of the backing plate (2) is provided with a top opening (19) at a position corresponding to the processing position of the arc-shaped long round hole (102) on the quick acting sheet (100) as the workpiece to be processed;

a positioning sleeve through hole (20) is formed in the base plate (2) at a position corresponding to the positioning sleeve mounting hole (13) of the bottom plate (1);

the shoulder stud bolt (5) sequentially penetrates through a center hole (103) in the quick acting piece (100), the positioning sleeve (4) and a positioning sleeve through hole (20) of the base plate (2), is in threaded connection with a shoulder stud bolt mounting hole (14) in the base plate (1), and is screwed in the shoulder stud bolt mounting hole (14);

the bottom surface of the shoulder part (21) of the double-headed bolt with shoulder (5) compresses the top surface of the positioning sleeve (4).

6. The high-symmetry arc-shaped long round hole processing device according to claim 3 or 4, wherein the backing plate (2) is provided with two second limit block mounting holes (28) and two second swing press block mounting holes (29) at positions corresponding to the two first limit block mounting holes (15) and the two first swing press block mounting holes (16) on the bottom plate (1);

a transversely distributed limiting block (7) is arranged on the top surface of the compression wedge block (11);

the limiting block (7) is provided with a mounting counter bore (23) at the position corresponding to the second limiting block mounting hole (28) of the backing plate (2);

an inner hexagon screw vertically penetrates through the mounting counter bore (23) of the limiting block (7) and the second limiting block mounting hole (28) of the base plate (2), and is fixedly connected with the first limiting block mounting hole (15) on the bottom plate (1) through the inner hexagon screw;

a wedge block guide groove (30) is arranged between the two swinging press block mounting holes (29).

7. The high-symmetry arc-shaped long round hole processing device as claimed in claim 6, wherein the pressing wedge block (11) is provided with left-right symmetric extrusion inclined planes (31) towards the rear end of the quick acting plate (100);

clamping grooves (32) are formed in the middle of the left side and the right side of the compression wedge block (11);

the front end part of the pressing wedge block (11) far away from the quick-acting piece (100) is provided with an inward-concave anti-falling mounting hole (33);

the rear end part of the knurled screw (9) is provided with an anti-falling clamping groove (34);

and the anti-falling clamping groove (34) of the knurled screw (9) is connected with the anti-falling mounting hole (33) on the pressing wedge block (11).

8. The high-symmetry arc-shaped long round hole processing device according to claim 7, wherein the limiting block (7) is provided with a pin hole (24) at a position corresponding to the second swinging pressing block mounting hole (29);

the lower part of the limiting block (7) is provided with a hollow swing gap (25) for accommodating the front parts of the two swing pressing blocks (10) and the middle part of the pressing wedge block (11);

the front end of the swinging pressing block (10) is hinged with the backing plate (2) through a pin (12).

9. The high-symmetry arc-shaped long round hole processing device as claimed in claim 7, wherein the front part of the swinging pressing block (10) is provided with a pin shaft mounting hole (26);

the pin (12) sequentially penetrates through a pin shaft mounting hole (26) on the swinging pressing block (10), a pin hole (24) on the limiting block (7) and a second swinging pressing block mounting hole (29) on the base plate (2) and then is connected with a first swinging pressing block mounting hole (16) on the bottom plate (1);

the outer edge of the swinging pressing block (10) which is concentric with the pin shaft mounting hole (26) is provided with an arc surface (27) which is convenient for the swinging pressing block to rotate;

an arc-shaped bulge (35) is arranged at the position of the swing pressing block (10) corresponding to the clamping groove (32) in the middle of the pressing wedge block (11);

the swinging pressing block (10) is provided with a pressure bearing surface (36) which has the same gradient with the extrusion inclined surface (31) at the rear end part of the pressing wedge block (11) at the rear side of the arc-shaped bulge (35);

the swinging pressing block (10) is provided with a centering circular surface (37) on the other surface opposite to the pressure bearing surface (36).

10. The high-symmetry arc-shaped long round hole processing device as claimed in claim 1, wherein a pressing plate opening (22) convenient to mount and dismount is formed in the middle of the right end of the pressing plate (3).

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