CN214054503U

CN214054503U - Turning clamp

Info

Publication number: CN214054503U
Application number: CN202022909262.3U
Authority: CN
Inventors: 张建林; 杨丰收; 赵伟; 赵国利; 高兆春; 肖杨春
Original assignee: Zhejiang Headman Intelligent Equipment Co ltd
Current assignee: Zhejiang Headman Intelligent Equipment Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-08-27
Anticipated expiration: 2030-12-07

Abstract

The utility model provides a turning anchor clamps belongs to anchor clamps technical field. It has solved the not high problem of current turning anchor clamps machining precision. The turning clamp comprises a clamp body and a locking piece, wherein the outer end face of the clamp body is provided with a mounting cavity, the locking piece can fix a workpiece placed in the mounting cavity, the inner end of the clamp body is provided with a connecting portion which enables the clamp body to be connected with a lathe spindle, a first adjusting block and a second adjusting block are detachably connected in the mounting cavity, the first adjusting block is provided with at least two first bosses, the top surfaces of the first bosses are flush with each other, the second adjusting block is provided with at least two second bosses, the top surfaces of the second bosses are flush with each other, and the top surfaces of the first bosses are perpendicular to the top surfaces of the second bosses. The cutting clamp has the advantages of convenience, rapidness, time and labor saving, high machining efficiency and the like.

Description

Turning clamp

Technical Field

The utility model belongs to the technical field of anchor clamps, a turning anchor clamps is related to.

Background

As shown in fig. 1, a motor base 1 is an underframe or a component of an electrical apparatus, two axes of a motor connected by a coupler in a high-speed rotation process can be prevented from being eccentric by fixing the motor by using the motor base 1, a motor hole 1a and a bearing hole 1b are formed in the motor base 1, a blank with the motor hole 1a and the bearing hole 1b is generally manufactured firstly during production, and then finish machining is performed on the blank. Wherein the finish machining comprises surface finish machining and hole finish machining, and the finish machining of the hole belongs to the last machining step of the whole motor base basically.

Because the motor base 1 is irregular in shape, namely, belongs to a special-shaped workpiece, and cannot be directly clamped on a lathe, a boring and milling machining center is conventionally adopted to finish machining the motor hole 1a and the bearing hole 1b on the motor base 1. However, since the diameters of the motor hole 1a and the bearing hole 1b are different, it is necessary to replace different boring tools for machining during boring and milling, and thus the coaxiality between the finished motor hole 1a and the bearing hole 1b is not high.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide turning anchor clamps, solved the not high problem of machining precision.

The purpose of the utility model can be realized by the following technical proposal:

turning anchor clamps, including the anchor clamps body that outer terminal surface was equipped with the installation cavity and can be with the fixed retaining member of work piece of putting into the installation cavity, its characterized in that, anchor clamps body inner be equipped with and enable its connecting portion of being connected with the lathe spindle, can dismantle in the installation cavity and be connected with adjusting block one and adjusting block two, be equipped with two at least boss one on the adjusting block one, the top surface of each boss one flushes mutually, is equipped with two at least boss two on the adjusting block two, the top surface of each boss two flushes mutually, the top surface of boss one is mutually perpendicular with the top surface of boss two.

The turning clamp mainly aims at a motor base as a workpiece, when the turning clamp is clamped for the first time, the clamp body is fixed on a lathe spindle through a connecting part at the inner end, the motor base is placed into an installation cavity in a mode that the axis extending direction is consistent with the axis extending direction of the lathe spindle, the bottom surface of the motor base abuts against the top surfaces of bosses on a first adjusting block, one side surface of the motor base abuts against the top surfaces of bosses on a second adjusting block, and finally the motor base is fixed by utilizing a locking part. And then, measuring the coaxiality deviation between the axes of the motor hole and the bearing hole on the motor base and the axis of the lathe spindle. After the deviation is measured, the locking piece is operated to enable the motor base to be loosened and taken out, then the first adjusting block and the second adjusting block are detached from the clamp body, and the heights of the first boss and the second boss are polished according to the measured deviation value, so that the coaxiality between the axes of the motor hole and the bearing hole in the motor base and the axis of the lathe spindle is adjusted. After polishing, the first adjusting block and the second adjusting block are fixed on the fixture body again, when the motor base is clamped in the mounting cavity, the axis of the motor hole and the axis of the bearing hole in the motor base can be collinear with the axis of the lathe spindle, so that the machining precision can be ensured, and the coaxiality between the machined motor hole and the bearing hole can be ensured. Because the processed objects are all motor bases with finish-processed surfaces, and the surface precision of each motor base is the same, when the motor bases are clamped by the turning clamp, the motor bases are only required to be adjusted by the aid of the adjusting blocks I and the adjusting blocks II during primary clamping, and once the motor bases are adjusted, the motor bases are not required to be adjusted again in subsequent batch turning. And compared with the polishing of the whole plane, the polishing of the first boss and the second boss is more convenient, time-saving and labor-saving, and the processing efficiency is greatly improved.

In the turning clamp, the first boss and the second boss are both in a square block shape, the first inclined plane is arranged between the top surface of the first boss and one side surface of the boss, and the second inclined plane is arranged between the top surface of the second boss and the two side surfaces of the boss.

The first inclined plane and the second inclined plane are arranged, so that workers can polish the first boss and the second boss more easily, and the efficiency is further improved while the machining precision is improved.

In the turning clamp, the wall of the mounting cavity is provided with a first clamping groove and a second clamping groove, the first adjusting block is arranged in the first clamping groove, the second adjusting block is arranged in the second clamping groove, and the first adjusting block and the second adjusting block are both fixed with the clamp body through fasteners.

The first adjusting block is arranged in the first clamping groove, the second adjusting block is arranged in the second clamping groove, and then the first adjusting block is fixed with the clamp body and the second adjusting block is fixed with the clamp body by the fastening piece. The first adjusting block and the second adjusting block are detachably connected with the clamp body in such a way, so that a worker can detach the first adjusting block and the second adjusting block and ensure the machining precision in a way of only polishing the first boss and the second boss.

In the turning fixture, the wall of the mounting cavity where the first clamping groove is located and the wall of the mounting cavity where the second clamping groove is located are both planar, and the wall of the mounting cavity where the first clamping groove is located is perpendicular to the wall of the mounting cavity where the second clamping groove is located.

Through the arrangement, the first adjusting block and the second adjusting block are respectively arranged in the clamp body, and then the first top surface of the boss is naturally vertical to the second top surface of the boss, so that the first top surface of the boss can be attached to the bottom surface of the motor base, and the second top surface of the boss can be attached to one side surface of the motor base, and the accuracy in measuring the coaxiality deviation is ensured. Therefore, the working personnel can ensure the processing precision by polishing the first boss and the second boss, the adjustment time for ensuring the vertical of the top surface of the first boss and the top surface of the second boss is saved, and the efficiency is further improved.

In the turning fixture, the first adjusting block is strip-shaped, the number of the first adjusting blocks is two, the first clamping grooves are straight grooves, the number of the first clamping grooves is the same as that of the first adjusting blocks, and the first bosses on the same first adjusting block are arranged along the length direction of the first adjusting block.

The bottom of motor cabinet has two faces that flush mutually and be rectangular shape, consequently only sets up adjusting block two to the bar and quantity sets up to arrange along the length direction of adjusting block one for each boss on two and same adjusting block one, alright satisfy with the cooperation of motor cabinet bottom surface, further improved the convenience of polishing when having guaranteed the axiality offset value measurement accuracy.

In the turning fixture, the second adjusting block is strip-shaped, the second clamping groove is a straight groove, and the second bosses are arranged along the length direction of the second adjusting block.

Only be the adjusting block two and be the bar and each boss two is arranged along the length direction of adjusting block two, alright satisfy with the cooperation of motor cabinet side, further improved the convenience of polishing when having guaranteed the axiality deviation value measurement accuracy.

In foretell turning anchor clamps, connecting portion be the column, the terminal surface center department of connecting portion is equipped with the connection chamber, the chamber wall in connection chamber be the conical surface and connect the specific outer end of chamber and to the inner crescent from the clamp, the terminal surface of connecting portion still is equipped with a plurality of connecting holes that distribute around connecting the chamber.

The end part of the lathe spindle is inserted into the connecting cavity, the shape of the end part of the lathe spindle is matched with that of the connecting cavity, and the lathe spindle and the fixture body are fixed by penetrating the fasteners through the connecting holes, so that the coaxiality between the fixture body and the lathe spindle can be ensured, and the machining precision is improved.

In the turning clamp, the locking part comprises a first locking screw which is in threaded connection with the clamp body and the end part of the first locking screw can extend into the mounting cavity, and the axis of the first locking screw is perpendicular to the plane where the top surface of the first boss is located.

The axis of the locking screw I is perpendicular to the plane where the top surfaces of the bosses are located, so that the bottom surface of the motor base can be tightly attached to the top surfaces of the bosses by screwing the locking screw I inwards after the motor base is placed in the mounting cavity, on one hand, the measured coaxiality deviation is very accurate to ensure that the polishing amount is well controlled, and on the other hand, the motor base can be fixed in subsequent processing.

In the turning clamp, the locking piece further comprises a pressing block which can be placed in the mounting cavity and is matched with the locking screw, and the pressing block is U-shaped.

When the motor base needs to be clamped, the two ends of the pressing block are abutted against two surfaces which are flush with the upper side of the motor base in a mode that the opening faces downwards, then the motor base is placed into the mounting cavity together with the pressing block, and one end of the locking screw is abutted against the pressing block to enable the motor base to be pressed tightly. A larger contact area is formed through the pressing block and the motor base, and the fixing effect is improved.

In the turning clamp, the locking piece further comprises a second locking screw which is in threaded connection with the clamp body and can extend into the mounting cavity at the end part when rotating, and the axis of the second locking screw is perpendicular to the plane where the top surface of the second boss is located.

The axis of the locking screw II is vertical to the plane where the top surfaces of the bosses are located, so that the side surface of the motor base can be tightly attached to the top surfaces of the bosses by screwing the locking screw II inwards after the motor base is placed in the mounting cavity, on one hand, the measured coaxiality deviation is very accurate to ensure that the grinding amount is well controlled, and on the other hand, the motor base can be fixed in the subsequent processing.

Compared with the prior art, this turning jig has following advantage:

1. through the arrangement of the connecting part, the turning clamp can be fixed on a lathe spindle, so that the motor base bearing hole and the motor hole can be turned to finish machining by only one turning tool of the lathe, the action of the turning tool is controlled by a program, and the tool does not need to be changed in the middle, thereby greatly improving the machining efficiency;

2. the first adjusting block and the second adjusting block are detachably connected in the clamp body, and the coaxiality of the motor base and the lathe spindle is guaranteed by polishing the first boss on the first adjusting block and the second boss on the second adjusting block, so that the coaxiality between the turned motor hole and the bearing hole is guaranteed, and the machining precision is improved;

3. only the first boss and the second boss are polished, so that the polishing machine is more convenient, time-saving and labor-saving for workers, and the working efficiency is greatly improved;

4. the detachable connection mode of the first adjusting block, the second adjusting block and the clamp body enables the applicability of the cutting clamp to be wider, and only the first adjusting block and the second adjusting block need to be replaced when motor bases or other workpieces of different sizes need to be clamped.

Drawings

Fig. 1 is a schematic view of a motor mount.

Fig. 2 is a schematic view at the outer end of the present cutting jig.

Fig. 3 is a schematic view at the inner end of the present cutting clamp.

Fig. 4 is an exploded schematic view of the present cutting jig.

Fig. 5 is a schematic diagram of the cutting jig after clamping the motor base.

Fig. 6 is a schematic diagram of the first adjusting block, the second adjusting block and the locking member of the turning clamp for clamping the motor base in cooperation with the motor base.

FIG. 7 is a side view of the first set block.

FIG. 8 is a side view of the second set block.

FIG. 9 is a schematic view of a briquette.

Fig. 10 is a cross-sectional view of the turning jig after the turning jig is connected to the lathe spindle in a state where the motor base is attached.

In the figure, 1, a motor base; 1a, a motor hole; 1b, a bearing hole; 2. a clamp body; 2a, a body; 2a1, mounting cavity; 2a2 and a first card slot; 2a3 and a second card slot; 2a4, annular protrusion; 2b, a switching disk; 2b1, a connecting part; 2b11, connecting cavity; 2b12, connecting hole; 2b2, mating part; 3. adjusting a first block; 3a, a first boss; 3a1, ramp one; 4. a second adjusting block; 4a, a second boss; 4a1, bevel two; 5. locking the first screw; 6. briquetting; 6a, briquetting; 7. a second locking screw; 8. a lathe spindle.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 2, 3, 4 and 10, the turning clamp includes a clamp body 2 having an outer end surface provided with a mounting cavity 2a1 and a locking member capable of fixing a workpiece placed in the mounting cavity 2a1, and the inner end of the clamp body 2 is provided with a connecting portion 2b1 capable of connecting the clamp body to a lathe spindle 8. The fixture body 2 comprises a block-shaped body 2a and an adapter plate 2b fixed with the body 2a through a fastener, the mounting cavity 2a1 penetrates through the body 2a, an annular protrusion 2a4 is arranged on the inner end face of the body 2a, and a matching portion 2b2 capable of being embedded into the annular protrusion 2a4 is arranged on one side of the adapter plate 2 b. Connecting portion 2b1 locates the opposite side of adapter plate 2b, and connecting portion 2b1 is the column, and the center department of the terminal surface of connecting portion 2b1 is equipped with connecting chamber 2b11, and the chamber wall of connecting chamber 2b11 is the circular conical surface and the internal diameter of connecting chamber 2b11 increases from the outer end of anchor clamps body 2 to the inner end gradually, and the terminal surface of connecting portion 2b1 still is equipped with a plurality of connecting holes 2b12 that distribute around connecting chamber 2b 11.

The turning clamp mainly aims at a motor base 1. As shown in fig. 10, when in use, the adapter plate 2b is firstly sleeved on the end of the lathe spindle 8 through the connecting hole 2b12, then the adapter plate 2b is fixed with the lathe spindle 8 by a fastener penetrating through the connecting hole 2b12, and then the body 2a and the adapter plate 2b are matched together and then fixed together by the fastener. Finally, the motor base 1 is placed into the installation cavity 2a1 of the clamp body 2, and the motor base 1 is fixed by the locking piece, so that the finish machining can be realized by turning the bearing hole 1b and the motor hole 1a on the motor base 1 by using a lathe, and the machining difficulty is reduced.

Further, as shown in fig. 2, fig. 3, fig. 4, fig. 7 and fig. 8, a first adjusting block 3 and a second adjusting block 4 are detachably connected in the installation cavity 2a1, at least two first bosses 3a are arranged on the first adjusting block 3, the top surfaces of the first bosses 3a are flush with each other, at least two second bosses 4a are arranged on the second adjusting block 4, the top surfaces of the second bosses 4a are flush with each other, and the top surfaces of the first bosses 3a are perpendicular to the top surfaces of the second bosses 4 a. The first boss 3a and the second boss 4a are both square, a first inclined plane 3a1 is arranged between the top surface of the first boss 3a and the side surface of the first boss 3a, and a second inclined plane 4a1 is arranged between the top surface of the second boss 4a and the side surface of the second boss 4 a. The wall of the mounting cavity 2a1 is provided with a first clamping groove 2a2 and a second clamping groove 2a3, a first adjusting block 3 is arranged in the first clamping groove 2a2, a second adjusting block 4 is arranged in the second clamping groove 2a3, and the first adjusting block 3 and the second adjusting block 4 are fixed with the clamp body 2 through fasteners. The cavity wall of the mounting cavity 2a1 where the first clamping groove 2a2 is located and the cavity wall of the mounting cavity 2a1 where the second clamping groove 2a3 is located are both planar, and the cavity wall of the mounting cavity 2a1 where the first clamping groove 2a2 is located is perpendicular to the cavity wall of the mounting cavity 2a1 where the second clamping groove 2a3 is located. Specifically, the second adjusting block 4 is in a strip shape, the second card slot 2a3 is a straight slot, and the second bosses 4a are arranged along the length direction of the second adjusting block 4. The first adjusting block 3 is strip-shaped, the number of the first adjusting blocks 3 is two, the number of the first clamping grooves 2a2 is the same as that of the first adjusting blocks 3, the first clamping grooves 2a2 are straight grooves, and the first bosses 3a on the same adjusting block are arranged along the length direction of the first adjusting blocks 3.

In this embodiment, as shown in fig. 2, fig. 3, fig. 4, fig. 6, and fig. 9, the locking member includes a first locking screw 5 which is screwed on the clamp body 2 and has an end portion capable of extending into the installation cavity 2a1, and a pressing block 6 which is capable of being placed into the installation cavity 2a1, an axis of the first locking screw 5 is perpendicular to a plane where the top surface of the first boss 3a is located, the pressing block 6 is U-shaped, the two end surfaces of the pressing block 6 are both provided with a protrusion 6a, and the top surface of the protrusion 6a is a plane. Furthermore, the locking piece also comprises a second locking screw 7 which is in threaded connection with the clamp body 2 and the end part of the second locking screw 7 can extend into the mounting cavity 2a1 when the second locking screw is rotated, and the axis of the second locking screw 7 is vertical to the plane of the top surface of the second boss 4 a.

After the adapter plate 2b is fixed at the end of the lathe spindle 8 and the adapter plate 2b and the body 2a are fixed into the fixture body 2 through fasteners, the first adjusting block 3 and the second adjusting block 4 are respectively fixed on the fixture body 2, wherein the first adjusting block 3 and the second adjusting block 4 are finish-machined to ensure that the top surfaces of the first bosses 3a are flush and the top surfaces of the second bosses 4a are flush, and then the first locking screws 5 and the second locking screws 7 are respectively turned outwards to prevent the ends of the first locking screws and the second locking screws from extending into the mounting cavity 2a 1. When the motor base 1 needs to be clamped, the two ends of the pressing block 6 are abutted against two flush surfaces on the motor base 1 in a mode that the opening faces downwards, and then the motor base 1 together with the pressing block 6 is placed into the mounting cavity 2a1 (the extension direction of the axis of the motor base 1 is ensured to be consistent with the extension direction of the axis of the lathe spindle 8). The bottom surface of the motor base 1 is abutted against the top surfaces of the bosses I3 a on the adjusting block I3, meanwhile, one side surface of the motor base 1 is abutted against the top surfaces of the bosses II 4a on the adjusting block II 4, then, the locking screws I5 and the locking screws II 7 are screwed inwards respectively, the end parts of the locking screws I5 are abutted against the pressing block 6, the motor base 1 is tightly attached to the top surfaces of the bosses I3 a through the pressing block 6, the end parts of the locking screws II 7 are abutted against the other side surface of the motor base 1, so that the motor base 1 is tightly attached to the top surfaces of the bosses II 4a, and the clamped state is as shown in figures 5 and 6. Next, the deviation between the coaxiality of the axes of the motor hole 1a and the bearing hole 1b in the motor base 1 and the axis of the lathe spindle 8 is measured (specifically, the measurement may be performed using three coordinate axes).

After the deviation is measured, the first locking screw 5 and the second locking screw 7 are loosened, the motor base 1 is taken out of the installation cavity 2a1, and the first adjusting block 3 and the second adjusting block 4 are detached from the fixture body 2. And then, the heights of the first boss 3a and the second boss 4a are polished according to the measured deviation values, so that the coaxiality between the axes of the motor hole 1a and the bearing hole 1b on the motor base 1 and the axis of the lathe spindle 8 is adjusted. After polishing, the first adjusting block 3 and the second adjusting block 4 are fixed on the fixture body 2 again, when the motor base 1 is clamped in the mounting cavity 2a1, the axes of the motor hole 1a and the bearing hole 1b on the motor base 1 can be collinear with the axis of the lathe spindle 8, and therefore the machining accuracy can be guaranteed while the machining difficulty is reduced. Because the processed objects are the motor bases 1 with the finished surfaces and the surface precision of each motor base 1 is the same, when the motor bases 1 are clamped by the turning clamp, the motor bases are only required to be adjusted by the aid of the adjusting blocks I3 and II 4 during primary clamping, and once the motor bases are adjusted, the motor bases are not required to be adjusted again during subsequent batch turning.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. Turning anchor clamps, including the anchor clamps body (2) that the outer terminal surface was equipped with installation cavity (2a1) and can be with the retaining member of putting into the work piece fixation in installation cavity (2a1), its characterized in that, anchor clamps body (2) inner be equipped with can make its connecting portion (2b1) of being connected with lathe spindle (8), can dismantle in installation cavity (2a1) and be connected with adjusting block one (3) and adjusting block two (4), be equipped with two at least boss one (3a) on adjusting block one (3), the top surface of each boss one (3a) flushes mutually, be equipped with two at least bosses two (4a) on adjusting block two (4), the top surface of each boss two (4a) flushes mutually, the top surface of boss one (3a) is mutually perpendicular with the top surface of boss two (4 a).

2. The turning fixture according to claim 1, wherein the first boss (3a) and the second boss (4a) are both square, a first inclined surface (3a1) is arranged between the top surface of the first boss (3a) and the side surface of the first boss (3a), and a second inclined surface (3a2) is arranged between the top surface of the second boss (4a) and the side surface of the second boss (4 a).

3. The turning clamp according to claim 2, wherein a first clamping groove (2a2) and a second clamping groove (2a3) are formed in the cavity wall of the mounting cavity (2a1), the first adjusting block (3) is arranged in the first clamping groove (2a2), the second adjusting block (4) is arranged in the second clamping groove (2a3), and the first adjusting block (3) and the second adjusting block (4) are fixed with the clamp body (2) through fasteners.

4. The turning clamp according to claim 3, wherein the wall of the mounting cavity (2a1) where the first clamping groove (2a2) is located and the wall of the mounting cavity (2a1) where the second clamping groove (2a3) is located are both planar, and the wall of the mounting cavity (2a1) where the first clamping groove (2a2) is located is perpendicular to the wall of the mounting cavity (2a1) where the second clamping groove (2a3) is located.

5. The turning fixture according to claim 4, wherein the first adjusting block (3) is strip-shaped, the number of the first adjusting blocks (3) is two, the first clamping grooves (2a2) are straight grooves, the number of the first clamping grooves (2a2) is the same as that of the first adjusting blocks (3), and the first bosses (3a) on the same first adjusting blocks (3) are arranged along the length direction of the first adjusting blocks (3).

6. The turning clamp according to claim 4, wherein the second adjusting block (4) is strip-shaped, the second clamping groove (2a3) is a straight groove, and the second bosses (4a) are arranged along the length direction of the second adjusting block (4).

7. The turning clamp according to claim 1, 2, 3, 4, 5 or 6, characterized in that the connecting portion (2b1) is columnar, the connecting cavity (2b11) is arranged at the center of the end surface of the connecting portion (2b1), the cavity wall of the connecting cavity (2b11) is conical, the inner diameter of the connecting cavity (2b11) is gradually increased from the outer end to the inner end of the clamp body (2), and the end surface of the connecting portion (2b1) is further provided with a plurality of connecting holes (2b12) distributed around the connecting cavity (2b 11).

8. The turning fixture according to claim 1 or 2 or 3 or 4 or 5 or 6, wherein the locking member comprises a first locking screw (5) which is screwed on the fixture body (2) and has an end capable of extending into the mounting cavity (2a1), and the axis of the first locking screw (5) is perpendicular to the plane of the top surface of the first boss (3 a).

9. The turning fixture according to claim 8, wherein the locking member further comprises a pressing block (6) which can be placed in the mounting cavity (2a1) and is matched with the first locking screw (5), and the pressing block (6) is U-shaped.

10. The turning fixture according to claim 9, wherein the locking member further comprises a second locking screw (7) which is screwed on the fixture body (2) and has an end capable of extending into the mounting cavity (2a1) when the second locking screw (7) is rotated, and the axis of the second locking screw (7) is perpendicular to the plane of the top surface of the second boss (4 a).