CN215433193U

CN215433193U - Adjustable clamp special for cylindrical grinding

Info

Publication number: CN215433193U
Application number: CN202121506676.XU
Authority: CN
Inventors: 扈佃新
Original assignee: Shanghai Tianshuo Machinery Co Ltd
Current assignee: Shanghai Tianshuo Machinery Co Ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-01-07
Anticipated expiration: 2031-07-02

Abstract

The utility model discloses an adjustable clamp special for cylindrical grinding, which comprises: the outer surface of the fixing ring is provided with a fixing hole, and a positioning bolt penetrates through the fixing hole; the screw hole penetrates through the middle part of the lower end of the fixing ring, and two sides of the upper end of the screw hole are provided with limit grooves; the sliding groove penetrates through the two ends of the screw hole, which are vertical to the limiting groove; the fixing clamp penetrates through the sliding groove and the fixing ring; the positioning ring is arranged at the top end of the fixing clamp; and the upper stud is welded at the lower end of the positioning ring, and the lower end of the upper stud is welded with a sliding column. The adjustable special fixture for cylindrical grinding is provided with the stop block which can slide in the screw hole through the sliding column after the fixed fixture rotates, so that the position of the positioning ring moves on the axis of the fixed fixture, the axis of the rotation track of the material to be ground is adjusted, and the eccentric circle or other special-shaped structures can be ground without replacing the fixture.

Description

Adjustable clamp special for cylindrical grinding

Technical Field

The utility model relates to the technical field of cylindrical grinding, in particular to an adjustable clamp special for the cylindrical grinding.

Background

The cylindrical grinding machine is used for processing the outer surface and the shaft shoulder end surface of a cylindrical, conical or other-shaped plain line of a workpiece. Among all grinding machines, the cylindrical grinding machine is the most widely used machine tool, and generally comprises a cast iron bed at the base, a table, a headstock and a tailstock for supporting and driving a workpiece to rotate, a grinding carriage (head) for mounting a grinding wheel, a transverse feed mechanism for controlling the size of the ground workpiece, an electric appliance for controlling the movement of the moving parts of the machine tool, a hydraulic device, and other main parts. The cylindrical grinding clamp is applied to the machining process of the cylindrical grinding machine, and is used for fixing the machined workpiece to enable the workpiece to be stably positioned on the axis.

Adjustable external grinding special fixture on market can only be treated the article of polishing usually in use and fix, and the axis position is fixed in polishing, and can't carry out polishing of eccentric circle, need change other anchor clamps when polishing irregular shape, and the operation is comparatively loaded down with trivial details, has reduced work efficiency of polishing, for this reason we provide an adjustable external grinding special fixture.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an adjustable special fixture for cylindrical grinding, which solves the problems that the adjustable special fixture for cylindrical grinding in the market, which is provided in the background technology, can only fix an object to be ground, fix the position of a grinding central axis and cannot grind an eccentric circle in use, and other fixtures need to be replaced when irregular shapes are ground, so that the operation is complicated, and the working grinding efficiency is reduced.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an adjustable cylindrical grinding special fixture, includes:

the outer surface of the fixing ring is provided with a fixing hole, and a positioning bolt penetrates through the fixing hole;

the screw hole penetrates through the middle part of the lower end of the fixing ring, and two sides of the upper end of the screw hole are provided with limit grooves;

the sliding groove penetrates through the two ends of the screw hole, which are vertical to the limiting groove;

the fixing clamp penetrates through the sliding groove and the fixing ring;

the positioning ring is arranged at the top end of the fixing clamp;

the upper stud is welded at the lower end of the positioning ring, a sliding column is welded at the lower end of the upper stud, and a lower stud is welded at the lower end of the sliding column;

the operating nut is fixedly welded on the lower end surface of the lower stud;

and the stop blocks are fixed on two sides of the sliding column.

Preferably, a sliding structure is formed between the fixing hole and the positioning bolt, the fixing hole is matched with the positioning bolt, and the fixing ring is clamped with the positioning bolt through the fixing hole.

Preferably, the central axis position of the fixing clamp and the fixing ring coincides, and the fixing clamp forms a sliding structure through the sliding column and the fixing ring.

Preferably, a clamping structure is formed between the stop block and the limiting groove, and the stop block is matched with the limiting groove in overall dimension.

Preferably, the stop block forms a sliding structure through the sliding column and the sliding groove, and the positioning ring forms a rotating structure through the sliding column and the fixing ring.

Preferably, the fixing jig is further provided with:

and the spring is fixed on one end surface of the operating nut close to the lower stud.

Preferably, the fixing clamp forms an elastic telescopic structure through the sliding column and the spring, and the lower stud is in threaded connection with the fixing ring.

Compared with the prior art, the utility model has the beneficial effects that: the adjustable special fixture for cylindrical grinding is provided with the stop block which can slide in the screw hole through the sliding column after the fixed fixture rotates, so that the position of the positioning ring moves on the axis of the fixed fixture, the axis of the rotation track of the material to be ground is adjusted, and the eccentric circle or other special-shaped structures can be ground without replacing the fixture.

The fixed ring is fixedly connected with the positioning bolt on the external grinding machine through the fixing hole above the fixed ring, so that the fixed ring can rotate along with the rotating end of the external grinding machine, and the condition that the grinding process is influenced due to the fact that the angular speeds of the fixed ring and the rotating end of the external grinding machine are not consistent can be avoided; the mounting fixture who sets up can be under the fixed ring position fixed's the condition, through the motion of traveller in the screw, adjusts the relative position of mounting fixture and axle center, and the movement track is injectd, can not produce at the in-process of polishing and shake, and the material produces deckle edge when preventing to polish.

The limiting groove is used for fixing the stop block, so that the stop block cannot shift after being embedded into the limiting groove, the material fixed in the positioning ring can be stably polished, and errors caused by shaking cannot occur; the spring that sets up makes the dog can not produce in the spacing groove and rock through solid fixed ring and operation nut application of force simultaneously, and when just solid fixed ring rotated with the holding ring jointly, the dog still received the effect of centrifugal force, and the top is inside the spacing groove, makes under the dual guarantee to wait that the piece of polishing can not take place the offset when fixing in the holding ring.

Drawings

FIG. 1 is a schematic view of a normal fixed state front perspective structure of the present invention;

FIG. 2 is a schematic view of a fixed-state three-dimensional structure of the eccentric circle grinding machine according to the present invention;

FIG. 3 is a schematic side view of the present invention;

FIG. 4 is a schematic perspective view of a retaining ring according to the present invention;

fig. 5 is a schematic perspective view of the fixing clip of the present invention.

In the figure: 1. a fixing ring; 2. a fixing hole; 3. positioning bolts; 4. a screw hole; 5. a limiting groove; 6. a chute; 7. fixing the clamp; 8. a positioning ring; 9. an upper stud; 10. a traveler; 11. a lower stud; 12. a spring; 13. operating the screw cap; 14. and a stop block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an adjustable cylindrical grinding special fixture, includes: the outer surface of the fixing ring 1 is provided with a fixing hole 2, and a positioning bolt 3 penetrates through the fixing hole 2; a sliding structure is formed between the fixing hole 2 and the positioning bolt 3, the fixing hole 2 is matched with the positioning bolt 3, and the fixing ring 1 forms a clamping structure with the positioning bolt 3 through the fixing hole 2; the fixed ring 1 is fixedly connected with a positioning bolt 3 on the external grinding machine through a fixing hole 2 above the fixed ring, so that the fixed ring 1 can rotate along with the rotating end of the external grinding machine, and the condition that the grinding process is influenced due to the fact that the angular speeds of the fixed ring 1 and the rotating end of the external grinding machine are not consistent can be avoided; the screw hole 4 penetrates through the middle part of the lower end of the fixing ring 1, and two sides of the upper end of the screw hole 4 are provided with limiting grooves 5; a clamping structure is formed between the stop block 14 and the limiting groove 5, and the outer dimensions of the stop block 14 and the limiting groove 5 are matched; the limiting groove 5 is used for fixing the stop block 14, so that the stop block 14 cannot shift after being embedded into the limiting groove 5, the material fixed in the positioning ring 8 can be stably polished, and errors caused by shaking cannot occur; the sliding groove 6 penetrates through the two ends of the screw hole 4, which are vertical to the limiting groove 5; the stop block 14 forms a sliding structure with the sliding chute 6 through the sliding column 10, and the positioning ring 8 forms a rotating structure with the fixing ring 1 through the sliding column 10; the stop block 14 can slide in the screw hole 4 through the sliding column 10 after the fixed clamp 7 rotates, so that the position of the positioning ring 8 moves on the axis of the fixed clamp 7, the axis of the rotation track of the material to be polished is adjusted, and an eccentric circle or other non-circular structures can be polished without replacing the clamp; a fixing clamp 7 penetrating the chute 6 and the fixing ring 1; the central axis positions of the fixing clamp 7 and the fixing ring 1 are overlapped, and the fixing clamp 7 and the fixing ring 1 form a sliding structure through the sliding column 10; the relative position of the fixing clamp 7 and the axis can be adjusted by the movement of the sliding column 10 in the screw hole 4 under the condition that the position of the fixing ring 1 is fixed, the movement track is limited, vibration cannot be generated in the polishing process, and burrs of materials are prevented from being generated in the polishing process; a positioning ring 8 disposed at the top end of the fixing jig 7; the upper stud 9 is welded at the lower end of the positioning ring 8, the lower end of the upper stud 9 is welded with a sliding column 10, and the lower end of the sliding column 10 is welded with a lower stud 11; an operating nut 13 welded and fixed to the lower end surface of the lower stud 11; and stoppers 14 fixed to both sides of the strut 10.

Referring to fig. 4-5, an adjustable clamp dedicated for cylindrical grinding comprises: a spring 12 fixed to an end surface of the operating nut 13 near the lower stud 11; the fixing clamp 7 forms an elastic telescopic structure with the fixing ring 1 through a sliding column 10 and a spring 12, and the lower stud 11 is in threaded connection with the fixing ring 1; the spring 12 that sets up makes dog 14 can not produce in spacing groove 5 and rock through the application of force to solid fixed ring 1 and operation nut 13 simultaneously, and when just solid fixed ring 1 rotated jointly with holding ring 8, dog 14 still received the effect of centrifugal force, and the top is inside spacing groove 5, makes under the dual guarantee to wait to polish can not take place the offset when fixing in holding ring 8.

The working principle is as follows: for the adjustable clamp special for the external grinding, firstly, a fixing ring 1 is sleeved on a positioning bolt 3 at the rotating end of the external grinding through a fixing hole 2, so that the fixing ring 1 can synchronously rotate along with the rotating end of the external grinding machine, a bolt part is screwed into the fixing ring 1 through a screw hole 4 when the fixing clamp 7 leaves a factory, then a positioning ring 8 is welded at the top end of the bolt in the fixing ring 1 through welding, then a grinding piece to be ground is inserted into the positioning ring 8 to be clamped, the external grinding machine is opened, so that the rotating end drives an object to be ground in the fixing clamp 7 to rotate, the position of the positioning ring 8 in the fixing ring 1 can be adjusted through a stop block 14 and a limiting groove 5, a spring 12 simultaneously applies force to the fixing ring 1 and an operating nut 13, the stop block 14 is fixed in the limiting groove 5 in a stressed manner, an upper stud 9 cannot be screwed out from the fixing ring 1 under the influence of the stop block 14, so that the positioning ring 8 is fixed at the central position of the fixing ring 1, convenient to carry out the conventionality and polish, can rotate mounting fixture 7 at last, to the inside operation nut 13 that promotes of solid fixed ring 1, make spring 12 atress shrink and make traveller 10 move to solid fixed ring 1 is inside, make dog 14 of traveller 10 lower extreme pass through from spout 6, rotatory messenger's dog 14 card makes in spacing groove 5 once more, or continue to screw up down double-screw bolt 11, make holding ring 8 continue the inward movement, the 8 position of holding ring is in skew solid fixed ring 1 central point position this moment, can carry out eccentric circle and polish this moment, and mounting fixture 7 receives spring 12 effort and centrifugal force (or static friction force between the screw thread) combined action during the rotation, can remain stable in solid fixed ring 1, can not appear the skew and cause to polish failure or influence the precision of polishing.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an adjustable cylindrical grinder special fixture which characterized in that includes:

the fixing device comprises a fixing ring (1), wherein a fixing hole (2) is formed in the outer surface of the fixing ring (1), and a positioning bolt (3) penetrates through the fixing hole (2);

the screw hole (4) penetrates through the middle part of the lower end of the fixing ring (1), and two sides of the upper end of the screw hole (4) are provided with limiting grooves (5);

the sliding grooves (6) penetrate through the two ends, perpendicular to the limiting grooves (5), of the screw holes (4);

a fixing clamp (7) penetrating through the chute (6) and the fixing ring (1);

a positioning ring (8) arranged at the top end of the fixing clamp (7);

the upper stud (9) is welded at the lower end of the positioning ring (8), a sliding column (10) is welded at the lower end of the upper stud (9), and a lower stud (11) is welded at the lower end of the sliding column (10);

an operating nut (13) welded and fixed to the lower end surface of the lower stud (11);

and the stop blocks (14) are fixed on two sides of the sliding column (10).

2. The adjustable clamp special for cylindrical grinding according to claim 1, wherein: constitute sliding structure between fixed orifices (2) and pilot pin (3), and fixed orifices (2) and pilot pin (3) phase-match to solid fixed ring (1) constitutes the block structure through between fixed orifices (2) and pilot pin (3).

3. The adjustable clamp special for cylindrical grinding according to claim 1, wherein: the central axis position of the fixing clamp (7) and the fixing ring (1) coincides, and the fixing clamp (7) forms a sliding structure with the fixing ring (1) through the sliding column (10).

4. The adjustable clamp special for cylindrical grinding according to claim 1, wherein: a clamping structure is formed between the stop block (14) and the limiting groove (5), and the overall dimension of the stop block (14) is matched with that of the limiting groove (5).

5. The adjustable clamp special for cylindrical grinding according to claim 1, wherein: the stop block (14) forms a sliding structure with the sliding groove (6) through the sliding column (10), and the positioning ring (8) forms a rotating structure with the fixing ring (1) through the sliding column (10).

6. The adjustable clamp special for cylindrical grinding according to claim 1, wherein: the fixing clamp (7) is further provided with:

and a spring (12) fixed on one end surface of the operating nut (13) close to the lower stud (11).

7. The adjustable clamp special for cylindrical grinding according to claim 6, wherein: the fixing clamp (7) is in an elastic telescopic structure through the sliding column (10), the spring (12) and the fixing ring (1), and the lower stud (11) is in threaded connection with the fixing ring (1).