CN111283447A

CN111283447A - Clamp and machining assembly

Info

Publication number: CN111283447A
Application number: CN202010207133.1A
Authority: CN
Inventors: 陆长永
Original assignee: Guangdong Meizhi Compressor Co Ltd
Current assignee: Guangdong Meizhi Compressor Co Ltd
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-06-16

Abstract

The invention provides a fixture and a machining assembly. Wherein, anchor clamps and internal diameter processing cutter cooperation are used, include: a positioning device; and the limiting device comprises a stop block, a gap is formed between the stop block and the positioning device along the direction of the rotating shaft of the inner diameter machining tool, and the stop block is configured to move relative to the positioning device in a plane perpendicular to the rotating shaft of the inner diameter machining tool. According to the clamp provided by the invention, the positioning device is configured to limit the movement of the workpiece in a plane perpendicular to the rotating shaft of the inner diameter machining tool, the stop block moves to enable at least part of the stop block to be opposite to the workpiece to limit the workpiece in the tool retracting process of the inner diameter machining tool during machining, the workpiece is prevented from being scrapped due to the fact that the workpiece is taken out by the inner diameter machining tool, the problem that the precision of the inner diameter machining tool is damaged and the machining efficiency is influenced due to the fact that the workpiece needs to be taken down after the inner diameter machining tool takes out the workpiece is solved, the machining efficiency and the machining quality are improved, and the machining cost is reduced.

Description

Clamp and machining assembly

Technical Field

The invention relates to the technical field of inner diameter machining of workpieces, in particular to a clamp and a machining assembly.

Background

When the inner diameter machining tool in the related art machines the inner diameter of a workpiece, the workpiece is fixed on the clamp and cannot move along with the rotation of the inner diameter machining tool, however, when the inner diameter machining tool finishes machining in the tool retracting process, the phenomenon that the workpiece is taken out due to the fact that the inner diameter machining tool is tightly matched with the workpiece often occurs, and then the workpiece is scrapped and machining efficiency is affected.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

To this end, a first aspect of the invention proposes a clamp.

A second aspect of the invention provides a tooling assembly.

In view of the above, a first aspect of the present invention provides a clamp for use with an inner diameter machining tool, comprising: a positioning device; and the limiting device comprises a stop block, a gap is formed between the stop block and the positioning device along the direction of the rotating shaft of the inner diameter machining tool, and the stop block is configured to move relative to the positioning device in a plane perpendicular to the rotating shaft of the inner diameter machining tool.

The clamp provided by the invention is matched with an inner diameter machining cutter for use and is used for machining the inner diameter of a workpiece. The fixture comprises a positioning device and a limiting device, wherein the positioning device is configured to limit the movement of the workpiece in a plane perpendicular to the rotating shaft of the inner diameter machining tool, namely when the inner diameter machining tool machines the inner diameter of the workpiece, the workpiece is fixed on the positioning device, and the fixing device limits the workpiece so that the workpiece cannot move along with the rotation of the inner diameter machining tool, thereby ensuring the machining precision. By arranging the limiting device, a gap is formed between the stop block of the limiting device and the positioning device along the direction of the rotating shaft of the inner diameter machining tool, the gap is used for accommodating a workpiece, namely when the workpiece needs to be machined, the workpiece is positioned in the gap between the positioning device and the stop block and is fixed on the positioning device, because the stop block is configured to move relative to the positioning device in a plane perpendicular to the rotating shaft of the inner diameter machining tool, the inner diameter machining tool can be machined in the process of retracting (returning to the original point) through a simple structure, the stop block moves to enable at least part of the stop block to be opposite to the workpiece so as to limit the workpiece, so that the workpiece is prevented from being scrapped due to the fact that the workpiece is taken out by the inner diameter machining tool, meanwhile, the problems that the precision of the inner diameter machining tool is damaged and the machining efficiency is influenced due to the fact that the workpiece needs to be taken out after, and the processing cost is reduced, and the method is suitable for popularization and application.

According to the clamp, the following additional technical characteristics can be provided:

in the above technical solution, further, the method further includes: a base; the floating plate is arranged between the base and the positioning device and is connected with the base and the positioning device; the limiting device further comprises a connecting assembly, the connecting assembly is connected with the floating plate and located on one side, away from the base, of the floating plate, the connecting assembly is provided with a guide groove, and the stop block is configured to move along the guide groove.

In the technical scheme, the clamp comprises a base and a floating plate, the limiting device further comprises a connecting assembly, the floating plate is located between the base and the positioning device, one side of the floating plate is connected with the positioning device, the other side of the floating plate is connected with the base, the connecting assembly is located on one side, deviating from the base, of the floating plate and is connected with the floating plate, namely the connecting assembly and the positioning device are located on the same side of the floating plate, and the positioning device is located on one side, close to the inner diameter machining tool, of the connecting assembly. The connecting assembly is provided with a guide groove, the stop block is configured to move along the guide groove, and then at least part of the stop block can be opposite to the positioning device, so that the workpiece can not be taken out by the inner diameter machining tool due to the fact that the inner diameter machining tool is limited in the tool retracting process, or the stop block moves to one side of the positioning device, which deviates from a rotating shaft of the inner diameter machining tool, along the guide groove, and feeding and discharging operations of the workpiece are achieved. The inner diameter machining tool can be limited in stopping of the workpiece and convenient for feeding and discharging of the workpiece in the tool retracting process by moving the stop block along the guide groove, the structure is simple, the operation is convenient, the machining quality of the workpiece is guaranteed, the machining efficiency is improved, and the machining cost is reduced.

In the above technical solution, further, the connection assembly includes: one end of the first connecting piece is connected with the floating plate, and the other end of the first connecting piece is provided with a guide groove; the cover plate is arranged at the other end of the first connecting piece and is connected with the first connecting piece, and the stop block is positioned between the first connecting piece and the cover plate.

In the technical scheme, the connecting assembly comprises a first connecting piece and a cover plate, one end of the first connecting piece is connected with the floating plate, the other end of the first connecting piece is provided with a guide groove, the guide groove penetrates through the first connecting piece, the cover plate is connected with the other end of the first connecting piece, namely, the cover plate cover is arranged at one end, provided with the guide groove, of the connecting piece, the end, away from the floating plate, of the guide groove is sealed, the stop block is located between the first connecting piece and the cover plate and can move in the guide groove, and further, when the inner diameter machining tool is in the process of retracting the tool, the workpiece is abutted to the stop block, the cover plate acts on the stop block to prevent the workpiece from being taken out by the inner diameter machining tool, and further, the reliability and the stability of the.

Furthermore, the cover plate is connected with the first connecting piece through the bolt, so that the reliability and the stability of the connection of the cover plate and the first connecting piece are guaranteed, the first connecting piece is connected with the floating plate through the bolt, the reliability and the stability of the connection of the first connecting piece and the floating plate are guaranteed, and the stop block is further guaranteed to have a reliable limiting effect. It will be appreciated that the cover plate and the first connecting member may be connected by other connecting structures as required, and that the first connecting member and the floating plate may be connected by other connecting structures as required.

In the above technical solution, further, a guide hole is provided at one side of the stopper facing the cover plate, and the cover plate is provided with a through hole corresponding to the guide hole; the limiting device further comprises a second connecting piece which is configured to be suitable for being abutted with the guide hole through the through hole; wherein an end of the second connector facing the stopper is configured as a retractable ball structure configured to be adapted to abut against or separate from the guide hole based on movement of the stopper.

In this technical scheme, the dog is provided with the guiding hole towards one side of apron, the apron is equipped with the through-hole corresponding with the guiding hole, stop device's second connecting piece passes through-hole and guiding hole butt, and then can carry on spacingly to the dog, avoid the internal diameter machining cutter to vibrate at the during operation anchor clamps and make the dog break away from the guiding hole, or anchor clamps take place at the condition that the removal in-process dog breaks away from the guide way, and then can make the dog reliable, stable being located in the guiding hole, guarantee effectual limiting displacement, the reliability of product is improved. One end of the second connecting piece facing the stop block is configured into a telescopic spherical structure, and in the process of moving the stop block, the spherical structure is configured into abutting joint or phase separation with the guide hole, so that in the moving direction of the stop block along the guide groove, the stop block is subjected to small acting force to enable the guide hole to be separated from the spherical structure to achieve the moving of the stop block, or the guide hole and the spherical structure are abutted to fix the stop block, and therefore the rapid installation and positioning of the stop block can be achieved, and the rapid model changing of the stop block is achieved.

In the above technical solution, further, a positioning portion is disposed on one side of the first connecting member facing the floating plate, and the floating plate is provided with a positioning hole adapted to the positioning portion; and/or the guide hole is a tapered hole; and/or the depth of the guide hole is less than or equal to 2 mm; and/or the second connector is a ball plunger.

In the technical scheme, one side of the first connecting piece, which faces the floating plate, is provided with the positioning part, the floating plate is provided with the positioning hole matched with the positioning part, and the pre-positioning is realized through the matching of the positioning part and the positioning hole, so that the assembly efficiency and the assembly precision of the first connecting piece and the floating plate are improved, the production efficiency of the clamp is improved, the reliable precision is ensured, and the processing quality of a workpiece is improved. Specifically, location portion is the locating pin, and the locating pin processing is convenient, and the cost is lower, and the reliability is high.

The guiding hole is the bell mouth, and the pore wall of bell mouth has good guide effect for the dog is receiving under the condition of less effort, and the bell mouth of dog can with spherical structure phase separation or looks butt, realize the quick installation and the location of dog, and then realize that the dog trades the type fast. Specifically, in a plane parallel to the rotating shaft of the inner diameter machining tool, the cross-sectional area of the guide hole is triangular, and an included angle of the triangular side away from the opening side of the guide hole is 120 degrees, namely the guide hole is a conical hole with an opening of 120 degrees. It will be appreciated that the opening of the pilot hole may be at other angles as desired, with the opening angle of the pilot hole ranging from 110 ° to 130 °.

The degree of depth less than or equal to 2mm of guiding hole, the degree of depth of guiding hole is at reasonable within range, is favorable to guaranteeing that the pore wall of guiding hole has good guide effect, and then guarantees that the dog is receiving under the circumstances of less effort, and the guiding hole of dog can with spherical structure phase separation or looks butt, realizes the quick installation and the location of dog. It will be appreciated that the depth of the pilot hole may be 1mm to 2mm, but other ranges may be sufficient.

The second connecting piece is a ball plunger, and can also be other structures meeting the requirements.

In the above technical solution, further, the limiting device further includes: the insert is detachably connected with the stop block and arranged opposite to the positioning device, and a gap is formed between the insert and the positioning device along the rotating shaft direction of the inner diameter machining cutter.

In the technical scheme, the limiting device further comprises an insert, the insert is connected with the stop block and arranged facing the positioning device, a gap is formed between the insert and the positioning device along the rotating shaft direction of the inner diameter machining cutter, namely when a workpiece needs to be machined, the workpiece is located in the gap between the positioning device and the insert and is fixed on the positioning device, so that the inner diameter machining cutter is in the process of retracting the cutter, the insert is directly abutted with the workpiece to limit the workpiece, and the insert is detachably connected with the stop block, so that when the insert is seriously worn and needs to be replaced, the insert is detached from the stop block to be independently replaced, the stop block does not need to be integrally replaced, and the use cost is saved.

In the above technical solution, further, the stopper includes: a first pressing plate located in the guide groove and configured to move along the guide groove; and the second pressing plate is connected with the first pressing plate, is perpendicular to the first pressing plate and faces the positioning device.

In the technical scheme, the stop block comprises a first pressing plate and a second pressing plate, the first pressing plate is located in the guide groove and is configured to move along the guide groove, the second pressing plate is perpendicular to the first pressing plate and faces the positioning device, namely when a workpiece needs to be machined, the workpiece is located in a gap between the positioning device and the second pressing plate and is fixed on the positioning device, so that the second pressing plate is directly abutted with the workpiece to limit the workpiece in the tool retracting process of the inner diameter machining tool. Specifically, the stopper is L-shaped.

In the above technical solution, further, the limiting device further includes: the driving part is arranged on one side of the first pressing plate; the first pressing plate is provided with a groove structure, and the groove structure and the second pressing plate are positioned on two sides of the first connecting piece; wherein, the driving part is configured to be connected with the first pressure plate through the groove structure so as to drive the first pressure plate to move.

In this technical scheme, stop device still includes the drive division, locates one side of first clamp plate, and first clamp plate is provided with groove structure, and groove structure and second clamp plate are located the both sides of first connecting piece, and groove structure is located one side that the pivot of internal diameter processing cutter was kept away from to first clamp plate promptly, is configured to be suitable for through groove structure and first clamp plate to be connected in order to drive first clamp plate and move along the guide way through the drive division.

In the above technical solution, further, the positioning device includes: the positioning seat is connected with the floating plate, one side of the positioning seat, which is deviated from the floating plate, is provided with a first limiting part and a second limiting part, and the first limiting part and the second limiting part are distributed at intervals.

In this technical scheme, positioner includes the positioning seat, the positioning seat is connected with the floating plate to be located one side that first connecting piece is close to the internal diameter processing cutter pivot, one side that the positioning seat deviates from the floating plate is provided with first locating part and second locating part, the hole site looks adaptation of first locating part and work piece, the hole site setting of work piece is avoided to the second locating part, first locating part and second locating part through interval distribution, be favorable to fast, accurately fix the work piece on the positioning seat, and then improve the machining efficiency of work piece, and guarantee good processing quality.

In the above technical scheme, further, the number of the limiting devices is multiple, and the multiple limiting devices are distributed at intervals along the circumferential direction of the positioning device.

In this technical scheme, stop device's quantity is a plurality of, and a plurality of stop device are along positioner's circumference interval distribution, and at the in-process that the internal diameter processing cutter accomplished the processing and moved back the sword, a plurality of dogs carry on spacingly to the work piece simultaneously for the work piece atress is even, is favorable to internal diameter processing cutter to shift out in by the work piece steadily, and then has guaranteed the processing quality of work piece and the precision of internal diameter processing cutter.

According to a second aspect of the present invention, there is provided a tooling assembly comprising: an inner diameter machining tool; and the clamp of any technical scheme is matched with the inner diameter machining cutter for use.

The machining assembly provided by the invention comprises the inner diameter machining cutter and the clamp in any technical scheme, and the clamp is matched with the inner diameter machining cutter for use. Because the processing assembly comprises the clamp of any technical scheme, the processing assembly has all the beneficial effects of the clamp and is not repeated herein.

Specifically, the machining assembly is used for machining the inner diameter of a workpiece, for example, the workpiece is a cylinder which is used for a rotary compressor, and the inner diameter of the cylinder is a discontinuous machining surface with grooves. The inner diameter machining tool moves relative to the workpiece in the direction of the rotating shaft to machine an inner hole in the workpiece.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 shows a schematic structural view of one perspective of a clip of one embodiment of the present invention;

FIG. 2 shows a cross-sectional view at A-A of the embodiment of FIG. 1;

FIG. 3 shows a cross-sectional view from another perspective of the embodiment of FIG. 1;

FIG. 4 shows a view in the direction B of the embodiment of FIG. 1;

FIG. 5 shows an enlarged partial schematic view of a portion of the embodiment of FIG. 2;

FIG. 6 shows a cross-sectional view of one perspective of a stop of one embodiment of the present invention;

FIG. 7 shows a schematic structural view of a positioning device and a workpiece according to an embodiment of the invention;

FIG. 8 shows a top view of the embodiment of FIG. 7;

FIG. 9 shows a cross-sectional view from one perspective of the embodiment of FIG. 7;

fig. 10 shows a statistical data plot after cylinder honing for HSM-5 bore size according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 9 is:

100 clamp, 110 positioning device, 112 positioning seat, 114 first limiting member, 116 second limiting member, 120 base, 130 floating plate, 140 floating ring assembly, 150 support, 160 linear guide shaft, 200 limiting device, 210 stop block, 212 guide hole, 214 first pressing plate, 216 second pressing plate, 218 groove structure, 220 first connecting piece, 222 guide groove, 230 cover plate, 240 second connecting piece, 250 insert, 260 positioning pin, 270 bolt and 300 workpiece.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A fixture 100 and machining assembly according to some embodiments of the invention are described below with reference to fig. 1-9.

Example 1:

as shown in fig. 1 to 9, an embodiment of a first aspect of the present invention proposes a fixture 100 for use with an inner diameter machining tool (not shown) for machining an inner diameter of a workpiece 300. The jig 100 includes: a positioning device 110 and a position limiting device 200, the position limiting device 200 comprising a stopper 210, the stopper 210 and the positioning device 110 having a gap therebetween in the direction of the rotation axis of the inner diameter machining tool, the stopper 210 being configured to move relative to the positioning device 110 in a plane perpendicular to the rotation axis of the inner diameter machining tool.

In this embodiment, the fixture 100 is used in conjunction with an inner diameter machining tool for machining the inner diameter of a workpiece 300. As shown in fig. 1, 2 and 3, the fixture 100 includes a positioning device 110 and a limiting device 200, the positioning device 110 is configured to limit the movement of the workpiece 300 in a plane perpendicular to the rotation axis of the inner diameter machining tool, that is, when the inner diameter machining tool machines the inner diameter of the workpiece 300, the workpiece 300 is fixed on the positioning device 110, and the fixing device limits the workpiece 300 so that the workpiece 300 does not move with the rotation of the inner diameter machining tool, thereby ensuring the machining accuracy. By arranging the limiting device 200, a gap is formed between the stopper 210 of the limiting device 200 and the positioning device 110 along the rotating shaft direction of the inner diameter machining tool, and the gap is used for accommodating the workpiece 300, namely when the workpiece 300 needs to be machined, the workpiece 300 is positioned in the gap between the positioning device 110 and the stopper 210 and is fixed on the positioning device 110, because the stopper 210 is configured to move relative to the positioning device 110 in a plane perpendicular to the rotating shaft of the inner diameter machining tool, the inner diameter machining tool can be machined in the process of retracting (returning to the original point) through a simple structure, the stopper 210 moves to enable at least part of the stopper 210 to be opposite to the workpiece 300 so as to limit the workpiece 300, so that the workpiece 300 is prevented from being taken out by the inner diameter machining tool and scrapping the workpiece 300, and meanwhile, the problem that the accuracy of the inner diameter machining tool is damaged because the workpiece 300 needs to be taken out after the inner diameter machining tool takes, The machining efficiency is influenced, the machining efficiency and the machining quality are improved, the machining cost is reduced, and the method is suitable for popularization and application.

Example 2:

as shown in fig. 1 to 9, in one embodiment of the present invention, a jig 100 includes: the positioning device comprises a positioning device 110, a limiting device 200, a base 120 and a floating plate 130, wherein the floating plate 130 is arranged between the base 120 and the positioning device 110, the floating plate 130 is connected with the base 120 and the positioning device 110, the limiting device 200 further comprises a connecting component, the connecting component is connected with the floating plate 130 and is positioned on one side of the floating plate 130, which is far away from the base 120, the connecting component is provided with a guide groove 222, and the stopper 210 is configured to move along the guide groove 222.

In this embodiment, as shown in fig. 1, 2 and 3, the clamping apparatus 100 includes a base 120 and a floating plate 130, the position-limiting device 200 further includes a connecting member, the floating plate 130 is located between the base 120 and the positioning device 110, one side of the floating plate 130 is connected to the positioning device 110, the other side is connected to the base 120, the connecting member is located on the side of the floating plate 130 away from the base 120 and is connected to the floating plate 130, i.e. the connecting member and the positioning device 110 are located on the same side of the floating plate 130, and the positioning device 110 is located on the side of the connecting member close to the rotating shaft of the inner diameter machining. The connecting assembly is provided with a guide groove 222, the stopper 210 is configured to move along the guide groove 222, so that at least part of the stopper 210 can be opposite to the positioning device 110, so as to limit the workpiece 300 in the tool retracting process of the inner diameter machining tool, so that the workpiece 300 cannot be brought out by the inner diameter machining tool, or the stopper 210 moves along the guide groove 222 to one side of the positioning device 110, which is far away from the rotating shaft of the inner diameter machining tool, so as to realize the loading and unloading operations of the workpiece 300. Move along guide way 222 through dog 210 and can realize that the internal diameter processing cutter is spacing and make things convenient for the material loading, the unloading of work piece 300 to stopping of work piece 300 at the back of a knife in-process, simple structure, convenient operation has both guaranteed the processing quality of work piece 300, has improved machining efficiency again, and then has reduced the processing cost.

Example 3:

as shown in fig. 1 to 9, a clip 100 according to an embodiment of the present invention is further provided on the basis of embodiment 2, where the connecting assembly includes: a first connector 220, one end of the first connector 220 being connected to the floating plate 130, and the other end thereof being provided with a guide groove 222; and a cover plate 230 disposed at the other end of the first connector 220 and connected to the first connector 220, wherein the stopper 210 is disposed between the first connector 220 and the cover plate 230.

In this embodiment, as shown in fig. 4, 5 and 6, the connecting assembly includes a first connecting member 220 and a cover plate 230, one end of the first connecting member 220 is connected to the floating plate 130, the other end is provided with a guide groove 222, the guide groove 222 penetrates the first connecting member 220, the cover plate 230 is connected to the other end of the first connecting member 220, that is, the cover plate 230 is covered at the end of the link having the guide groove 222 to close the end of the guide groove 222 facing away from the floating plate 130, the stopper 210 is positioned between the first link 220 and the cover plate 230 and can move in the guide groove 222, further, when the inner diameter machining tool retracts, the workpiece 300 abuts against the stopper 210, the cover plate 230 acts on the stopper 210 to stop the stopper 210 so as to prevent the workpiece 300 from being taken out by the inner diameter machining tool, and then the reliability and the stability of the limit of the stop block 210 on the workpiece 300 in the tool retracting process of the inner diameter machining tool are ensured, and the reliability of the product is improved.

Further, the cover plate 230 is connected with the first connecting member 220 through the bolt 270, which is beneficial to ensuring the reliability and stability of the connection between the cover plate 230 and the first connecting member 220, the first connecting member 220 is connected with the floating plate 130 through the bolt 270, which is beneficial to ensuring the reliability and stability of the connection between the first connecting member 220 and the floating plate 130, and further ensuring that the stopper 210 has a reliable limiting function. It is understood that the cover plate 230 and the first connecting member 220 can be connected by other connecting structures as required, and the first connecting member 220 and the floating plate 130 can be connected by other connecting structures as required, for example, the first connecting member 220, the cover plate 230, the first connecting member 220 and the floating plate 130 are connected after being pre-positioned by the positioning pins 260.

Further, as shown in fig. 4, 5 and 6, a side of the stopper 210 facing the cover plate 230 is provided with a guide hole 212, and the cover plate 230 is provided with a through hole corresponding to the guide hole 212; the position limiting device 200 further comprises a second connecting piece 240, wherein the second connecting piece 240 is suitable for being penetrated through the through hole to abut against the guide hole 212; wherein an end of the second connector 240 facing the stopper 210 is configured as a retractable ball structure configured to be adapted to abut against or separate from the guide hole 212 upon movement of the stopper 210.

Specifically, dog 210 is provided with guiding hole 212 towards one side of apron 230, apron 230 is equipped with the through-hole corresponding with guiding hole 212, stop device 200's second connecting piece 240 passes through-hole and guiding hole 212 looks butt, and then can carry on spacingly to dog 210, avoid the internal diameter machining cutter to vibrate at the in-process anchor clamps and make dog 210 break away from the guiding hole, or anchor clamps take place at the condition that removes in-process dog breaking away from the guide way, and then can make dog 210 reliable, stable being located in guiding hole 212, guarantee effectual limiting displacement, improve the reliability of product. One end of the second connecting member 240 facing the stopper 210 is configured as a telescopic spherical structure, and in the moving process of the stopper 210, the spherical structure is configured to abut against or separate from the guide hole 212, so that in the moving direction of the stopper 210 along the guide groove 222, the stopper 210 can be separated from the spherical structure by a small acting force to enable the guide hole 212 to move so as to realize the movement of the stopper 210, or the guide hole 212 abuts against the spherical structure to fix the stopper 210, so that the quick installation and positioning of the stopper 210 can be realized, and the quick model change of the stopper 210 is realized.

Further, one side of the first connecting piece 220 facing the floating plate 130 is provided with a positioning portion, the floating plate 130 is provided with a positioning hole matched with the positioning portion, and pre-positioning is achieved through matching of the positioning portion and the positioning hole, so that improvement of assembling efficiency and assembling precision of the first connecting piece 220 and the floating plate 130 is facilitated, improvement of production efficiency of the fixture 100 is facilitated, reliable precision is guaranteed, and improvement of processing quality of the workpiece 300 is facilitated. Specifically, location portion is locating pin 260, and locating pin 260 processing is convenient, and the cost is lower, and the reliability is high, specifically, locating pin 260 is circular.

Further, guiding hole 212 is the bell mouth, and the pore wall of bell mouth has good guide effect for dog 210 is receiving under the condition of less effort, and dog 210's bell mouth can with spherical structure phase separation or looks butt, realizes dog 210's quick installation and location, and then realizes dog 210 and trades the type fast. Specifically, in a plane parallel to the rotation axis of the inner diameter machining tool, the cross-sectional area of the guide hole 212 is triangular, and an included angle of the triangular shape facing away from the opening side of the guide hole 212 is 120 °, that is, the guide hole 212 is a tapered hole with an opening of 120 °. It is understood that the opening of the guide hole 212 may be at other angles as required, and the opening angle of the guide hole 212 ranges from 110 ° to 130 °.

Specifically, the depth of guiding hole 212 is less than or equal to 2mm, and the depth of guiding hole 212 is in reasonable scope, is favorable to guaranteeing that the pore wall of guiding hole 212 has good guide effect, and then guarantees that dog 210 is receiving under the condition of less effort, and the guiding hole 212 of dog 210 can with spherical structure phase separation or looks butt, realizes dog 210's quick installation and location. It is understood that the depth of the pilot hole 212 may be 1mm to 2mm, and may be other ranges that meet the requirements.

Specifically, the depth and the opening angle of the guide hole 212 can be set reasonably according to the size of the sphere structure, so as to ensure that the hole wall of the guide hole 212 has a good guiding effect, and thus the rapid model change of the stopper 210 is realized.

Further, the second connector 240 is a ball plunger, but may be other structures that meet the requirement.

Example 4:

as shown in fig. 1 to 9, according to an embodiment of the present invention, on the basis of the above embodiment 2 or embodiment 3, the fixture 100 further includes: and the insert 250, wherein the insert 250 is detachably connected with the block 210 and is arranged opposite to the positioning device 110, and a gap is formed between the insert 250 and the positioning device 110 along the rotating shaft direction of the inner diameter machining tool.

In this embodiment, as shown in fig. 6, the limiting device 200 further includes an insert 250, the insert 250 is connected to the block 210 and disposed facing the positioning device 110, and a gap is provided between the insert 250 and the positioning device 110 along the rotation axis direction of the inner diameter machining tool, that is, when the workpiece 300 needs to be machined, the workpiece 300 is located in the gap between the positioning device 110 and the insert 250 and fixed on the positioning device 110, so that the insert 250 directly abuts against the workpiece 300 to limit the position of the workpiece 300 during tool retracting of the inner diameter machining tool, and due to the detachable connection between the insert 250 and the block 210, when the insert 250 is worn seriously and needs to be replaced, the insert 250 can be detached from the block 210 to replace the insert 250 alone, and the block 210 does not need to be replaced integrally, which is beneficial to saving use cost.

Specifically, the insert 250 and the block 210 are connected by a bolt 270, and it is understood that the insert 250 and the block 210 may be connected by other connecting structures as required.

Example 5:

as shown in fig. 1 to 9, in the fixture 100 according to an embodiment of the present invention, on the basis of any one of the embodiments 2 to 3, the stopper 210 further includes: a first pressure plate 214, the first pressure plate 214 being located within the guide slot 222 and configured to move along the guide slot 222; and a second pressing plate 216 connected to the first pressing plate 214, wherein the second pressing plate 216 is perpendicular to the first pressing plate 214 and faces the positioning device 110.

In this embodiment, as shown in fig. 5, the stop 210 includes a first pressing plate 214 and a second pressing plate 216, the first pressing plate 214 is located in the guide slot 222 and configured to move along the guide slot 222, and the second pressing plate 216 is perpendicular to the first pressing plate 214 and faces the positioning device 110, i.e. when the workpiece 300 needs to be machined, the workpiece 300 is located in the gap between the positioning device 110 and the second pressing plate 216 and fixed on the positioning device 110, so that the second pressing plate 216 directly abuts against the workpiece 300 to limit the workpiece 300 during the tool retracting process of the inner diameter machining tool. Specifically, the stopper 210 has an L-shape.

Further, the insert 250 can be detachably arranged on the side, facing the positioning device 110, of the second pressing plate 216, so that the insert 250 directly abuts against the workpiece 300 to further limit the position of the workpiece 300 in the tool retracting process of the inner diameter machining tool, and due to the detachable connection between the insert 250 and the second pressing plate 216, when the insert 250 is seriously worn and needs to be replaced, the insert 250 can be detached from the stopper 210 to replace the insert 250 alone, and the first pressing plate 214 and the second pressing plate 216 do not need to be replaced, which is beneficial to saving the use cost.

Further, the position limiting device 200 further comprises: a driving part provided at one side of the first pressing plate 214; the first pressure plate 214 is provided with a groove structure 218, and the groove structure 218 and the second pressure plate 216 are positioned at both sides of the first connector 220; wherein the driving portion is configured and adapted to be connected with the first pressing plate 214 through the groove structure 218 to drive the first pressing plate 214 to move.

Specifically, the limiting device 200 further includes a driving portion disposed on one side of the first pressing plate 214, the first pressing plate 214 is provided with a groove structure 218, the groove structure 218 and the second pressing plate 216 are disposed on two sides of the first connecting member 220, that is, the groove structure 218 is disposed on one side of the first pressing plate 214 away from the rotating shaft of the inner diameter machining tool, and the driving portion is configured to be suitable for being connected with the first pressing plate 214 through the groove structure 218 to drive the first pressing plate 214 to move along the guide groove 222.

Specifically, the driving portion is an air cylinder, the air cylinder is arranged on one side of the first pressing plate 214 and separated from the first pressing plate 214, when a workpiece 300 needs to be loaded and unloaded, the air cylinder is connected with a groove structure 218 on the first pressing plate 214, the air cylinder moves in a telescopic manner to drive the first pressing plate 214 to move in a direction away from a rotating shaft of the inner diameter machining tool, so that the second pressing plate 216 is far away from the positioning device 110, a manipulator descends to complete loading and unloading of the workpiece 300, material taking operation is performed, when the inner diameter of the workpiece 300 needs to be machined, the air cylinder moves in a telescopic manner to drive the first pressing plate 214 to move in a direction towards the rotating shaft of the inner diameter machining tool, so that the second pressing plate 216 faces the workpiece 300, and then when the inner diameter machining tool finishes machining in a tool retracting process, the workpiece.

Specifically, when the inner diameter of the workpiece 300 needs to be machined, the cylinder stretches and retracts to drive the first pressing plate 214 to move towards the rotating shaft direction of the inner diameter machining tool, and the second pressing plate 216 faces the workpiece 300, wherein the second pressing plate 216 may abut against the workpiece 300, or a gap may be formed between the second pressing plate 216 and the workpiece 300, for example, along the rotating shaft direction of the inner diameter machining tool, the gap between the second pressing plate 216 and the workpiece 300 may be 1mm to 3mm, or may be in another range meeting the requirement, for example, the gap between the second pressing plate 216 and the workpiece 300 is 2 mm.

It will be appreciated that the drive section may be of other configurations as desired.

Example 6:

as shown in fig. 1 to 9, on the basis of any one of the above embodiments 1 to 5, further, the positioning device 110 includes: the positioning seat 112, the positioning seat 112 is connected with the floating plate 130, a first limiting member 114 and a second limiting member 116 are disposed on a side of the positioning seat 112 away from the floating plate 130, and the first limiting member and the second limiting member 116 are distributed at intervals.

In this embodiment, as shown in fig. 7, 8 and 9, the positioning device 110 includes a positioning seat 112, the positioning seat 112 is connected to the floating plate 130 and is located at a side of the first connecting member 220 close to the rotating shaft of the inner diameter machining tool, a first limiting member 114 and a second limiting member 116 are disposed at a side of the positioning seat 112 away from the floating plate 130, the first limiting member 114 is adapted to the hole position of the workpiece 300, and the second limiting member 116 is disposed away from the hole position of the workpiece 300.

Specifically, the first limiting member 114 is a positioning pin 260, the second limiting member 116 is a mistake-proofing pin, the installation position of the positioning pin 260 is designed according to the hole position of the workpiece 300, the installation position of the mistake-proofing pin is designed to avoid the hole position of the workpiece 300, so as to achieve a mistake-proofing function after the workpiece 300 is positioned in a mistake, and the first limiting member 114 and the second limiting member 116 are matched to ensure that the workpiece 300 is quickly and accurately installed on the positioning seat 112. Further, the first limiting member 114 and/or the second limiting member 116 can limit the movement of the workpiece 300 in a plane perpendicular to the rotation axis of the inner diameter machining tool, that is, when the inner diameter machining tool machines the inner diameter of the workpiece 300, the workpiece 300 is fixed on the positioning seat 112 and cannot move along with the rotation of the inner diameter machining tool, thereby ensuring the machining precision. Further, the first position-limiting member 114 is a circular positioning pin.

Further, the number of the limiting devices 200 is multiple, the limiting devices 200 are distributed along the circumferential direction of the positioning device 110 at intervals, and in the process that the inner diameter machining tool finishes machining and retreats the tool, the limiting blocks 210 limit the workpiece 300 at the same time, so that the stress on the workpiece 300 is uniform, the inner diameter machining tool can be moved out of the workpiece 300 stably, and the machining quality of the workpiece 300 and the precision of the inner diameter machining tool are guaranteed.

Specifically, the number of the limiting devices 200 is two, and the two limiting devices 200 are arranged oppositely, that is, in the process of completing the machining and retracting process of the inner diameter machining tool, the two stoppers 210 of the two limiting devices 200 are located on the same diameter of the workpiece 300, so as to ensure that the stress on the workpiece 300 is uniform, and thus the workpiece 300 can be effectively separated from the inner diameter machining tool.

Further, the fixture 100 further includes a floating ring assembly 140, a bracket 150 and a linear guide shaft 160, wherein the floating ring assembly 140 is located on one side of the base 120 facing the floating plate 130 and is disposed around the positioning device 110, one end of the bracket 150 is connected to the base 120, and the other end is provided with the linear guide shaft 160, and the linear guide shaft 160 is disposed through the annular wall of the floating ring assembly 140. Further, the fixture 100 further includes a clamping portion, the clamping portion is connected to the floating ring assembly 140 and disposed opposite to the floating ring assembly, the clamping portion is located between the stopper 210 and the positioning device 110 and configured to be capable of moving in a telescopic manner in a plane perpendicular to the rotation axis of the inner diameter machining tool, that is, after the workpiece 300 is fixed on the positioning device 110, the clamping portion is capable of moving in a telescopic manner and abutting against the peripheral side of the workpiece 300, so as to further ensure that the workpiece 300 is reliably and stably fixed on the fixing device when the inner diameter machining tool works, thereby ensuring good machining quality.

Example 7:

as shown in fig. 1 to 9, an embodiment in a second aspect of the present invention provides a tooling assembly comprising: an inner diameter machining tool; and the clamp 100 of any of the above embodiments, the clamp 100 is used in conjunction with an inner diameter machining tool. Since the processing assembly includes the fixture 100 of any of the above embodiments, all the advantages of the fixture 100 are achieved, and are not described herein again.

Specifically, the machining assembly is used for machining the inner diameter of the workpiece 300, for example, the workpiece 300 is a cylinder used for a rotary compressor, and the inner diameter of the cylinder is a discontinuous machining surface with grooves. The inner diameter machining tool moves in the spindle direction relative to the workpiece 300 to machine an inner hole in the workpiece 300.

Further, the internal diameter processing cutter is a shaft-shaped cutter, the processing assembly provided by the application realizes a new process for twisting and honing the internal diameter of the cylinder, and compared with the method for processing the internal diameter of the cylinder by adopting an internal grinding machine and a grinding wheel to grind and match in the related technology, the internal diameter size fluctuation of the cylinder of the rotary compressor is improved, the internal diameter size fluctuation within a range of 2um is realized, zero special size is realized, the difficulty in matching the internal diameter of the cylinder with the external diameter of the piston in the assembling process of the pump body of the compressor is reduced, the production efficiency is improved, the good quality of the product is ensured, and the processing assembly is suitable for popularization and application.

It can be understood that the honing machining adopted by the machining assembly provided by the application can also be used for machining the inner diameters of other workpieces meeting the requirements, and the application range of the product is expanded.

In the specific embodiment:

the existing processing method applied to the inner diameter of the cylinder of the rotary compressor in the industry generally adopts a method that an internal grinding machine with a grinding head driven by a belt is matched with a grinding wheel for grinding, and the method for processing the inner diameter of the cylinder has the following defects:

1. the large size fluctuation and the same size and group difference of the inner diameter of the cylinder often occur in the use process, and the subsequent matched assembly with the inner diameter of the piston is influenced;

2. the roundness of the inner diameter is influenced by large machining allowance, the precision of a belt grinding head of the internal grinding machine and the precision change of main shaft equipment of the workpiece 300, the roundness fluctuation is large, the CPK is low, and the reject ratio is high;

3. the inner diameter roughness CPK is low, and the reject ratio is high;

CPK refers to process capability index, or process capability index, i.e., the actual processing capability of a process in a controlled state (steady state) for a certain period of time.

The machining assembly provided in the present application, as shown in fig. 1 to 9, includes a jig 100 and an inner diameter machining tool (shaft-like tool). The fixture 100 comprises a positioning device 110 and a limiting device 200, wherein the positioning device 110 and the limiting device 200 limit the workpiece 300 to be machined, and the inner diameter machining tool moves relative to the workpiece 300 along the direction of the rotating shaft to machine an inner hole in the workpiece 300. Specifically, the positioning device 110 limits the movement of the workpiece 300 in a plane perpendicular to the rotation axis of the inner diameter machining tool, that is, when the inner diameter machining tool machines the inner diameter of the workpiece 300, the workpiece 300 is fixed to the positioning device 110, the fixing device limits the workpiece 300 so that the workpiece 300 does not move with the rotation of the inner diameter machining tool, and the stopper 210 of the limiting device 200 is provided at the upper end of the positioning device 110 to stop the workpiece 300 from moving upward with the inner diameter machining tool.

Specifically, the fixture 100 further includes a base 120, a floating plate 130, a floating ring assembly 140, a support 150, and a linear guide shaft 160, where the floating ring assembly 140 and the base 120 form a chamber with an open upper end, it is understood that a gap may also be formed between the floating ring assembly 140 and the base 120, the floating plate 130 is disposed in the chamber and connected to the base 120, the positioning device 110 is disposed in the chamber and connected to the floating plate 130, the workpiece 300 is positioned by the positioning device 110 with two pins (positioning pin and anti-mismatching pin) on one side (positioning surface), one end of the support 150 is connected to the base 120, the other end is provided with the linear guide shaft 160, and the linear guide shaft 160 is inserted into a ring wall of the floating ring assembly 140. The inner diameter machining tool is provided above the workpiece 300 and is movable up and down in the direction of the inner diameter circle axis of the workpiece 300 to machine the inner diameter of the workpiece 300, and the radial dimension of the lower end of the inner diameter machining tool is smaller than the radial dimension of the workpiece 300.

When the inner diameter machining tool machines the inner diameter of the workpiece 300 to be machined, the workpiece 300 is driven to move upward by the upward movement of the inner diameter machining tool. The stopper 210 of the stopper is disposed above the workpiece 300, and at least a part of the stopper 210 can stop the workpiece 300 from moving upward along with the inner diameter machining tool and does not affect the movement of the stopper 210 in the up-down direction, so that the workpiece 300 can be prevented from moving upward along with the inner diameter machining tool.

Further, the term "upstream" referred to in the present application means upstream in the moving direction of the rotating shaft of the inner diameter machining tool, i.e., above the workpiece 300, and the workpiece 300 referred to in the present application may be a cylinder in the compressor pump body workpiece 300.

According to the clamp 100 provided by the invention, the limiting device 200 is additionally arranged on the basis of the positioning device 110, the stopper 210 of the limiting device 200 is positioned at the upper end of the positioning device 110, the structure is simple, the phenomenon that the workpiece 300 is taken out by the inner diameter machining tool due to the fact that the workpiece 300 is tightly matched with the inner diameter machining tool after machining can be effectively prevented, meanwhile, the rejection of the workpiece 300 due to the fact that the workpiece 300 is taken out by the inner diameter machining tool can be reduced, the precision damage of the inner diameter machining tool when the workpiece 300 is taken out from the inner diameter machining tool after the workpiece 300 is taken out can be reduced, the machining efficiency and the machining quality are improved, and the machining cost is.

Specifically, the positioning device 110 includes a positioning seat 112, the positioning seat 112 is mounted on the floating plate 130 through an inner hexagonal socket head cap screw, one surface of the positioning seat 112 facing the workpiece 300 is provided with a circular positioning pin and a mistake-proofing pin, the circular positioning pin 260 is disposed on a positioning surface of the positioning seat 112, a mounting position of the circular positioning pin is designed according to a hole position of the processed workpiece 300, the mistake-proofing pin is mounted on the positioning surface of the positioning seat 112, and the mounting position is designed to avoid the hole position of the processed workpiece 300, so as to achieve a mistake-proofing function after the workpiece 300 is positioned in a wrong.

The spacing device 200 further comprises a first connector 220, a cover plate 230 and a stopper 210, wherein the first connector 220 is mounted on the floating plate 130 through a positioning pin 260 and a socket head cap screw. The other end of the first connecting member 220 is provided with a guide slot 222, the guide slot 222 penetrates through the first connecting member 220, and the cover plate 230 is connected with the other end of the first connecting member 220, i.e. the cover plate 230 covers the end of the connecting member having the guide slot 222 to close the end of the guide slot 222 away from the floating plate 130, and the stopper 210 is located between the first connecting member 220 and the cover plate 230 and can move in the guide slot 222.

Further, the limiting device 200 further comprises an inner hexagonal socket head cap screw and an insert 250, the stopper 210 of the limiting device 200 is movably arranged at the upper end of the positioning device 110 perpendicular to the rotating shaft of the inner diameter machining tool, and the insert 250 is connected with the stopper 210 through the inner hexagonal socket head cap screw. The lower end face of the insert 250 is higher than the upper end face of the workpiece 300. In some embodiments, the stop 210 is L-shaped and includes an end surface that is perpendicular to the workpiece 300, i.e., the stop 210 includes a first pressure plate 214 and a second pressure plate 216 that are perpendicular to each other, the first pressure plate 214 being located within the guide slot 222, the second pressure plate 216 being located at an upper end of the workpiece 300.

Further, stop device 200 still includes the drive division, and the drive division is the cylinder, and one side that dog 210 deviates from the internal diameter processing cutter pivot is provided with groove structure 218, and dog 210 afterbody is equipped with groove structure 218 promptly, and dog 210 is connected with outside cylinder through groove structure 218 and realizes the drag hook, drives dog 210 and advances the back and forth movement at cylinder seesaw in-process.

Specifically, the number of the fixtures 100 is plural, for example, one machining assembly has 8 sets of fixtures 100, and in operation, when one fixture 100 rotates to the loading and unloading station, the stopper 210 is connected with an external cylinder through the tail groove structure 218 to realize a pulling hook, and the stopper 210 is driven to move forward and backward during the forward and backward movement of the cylinder.

When the inner diameter machining tool normally machines the workpiece 300, the workpiece 300 cannot move along with the rotation of the inner diameter machining tool under the action of the positioning device 110, and at the moment, the stop block 210 is positioned right above the workpiece 300; when the machining of the inner diameter machining tool is completed, the workpiece 300 moves upwards along with the inner diameter machining tool, at the moment, under the action of the cylinder, at least one part of the stop block 210 moves and extends above the workpiece 300, and the stop workpiece 300 continues to move upwards along with the inner diameter machining tool, so that the phenomenon that the workpiece 300 is taken out of the workpiece 300 by the inner diameter machining tool due to the fact that the workpiece 300 is tightly matched with the inner diameter machining tool after machining can be effectively prevented. Further, this application stop device 200 structure is ingenious, easy operation, and convenient assembling, dog 210 are in work piece 300 top when need not backstop work piece 300, nevertheless do not interfere with internal diameter machining tool up-and-down motion, and dog 210 only is in material loading station department from top to bottom, is pulled to the direction of keeping away from work piece 300 pivot by the cylinder drag hook.

Specifically, one jig 100 may have a plurality of position restricting devices 200, for example, the number of the position restricting devices 200 is two, and the two position restricting devices are arranged opposite to each other in the radial direction of the workpiece 300. In other words, two position-limiting devices 200 are oppositely arranged in the circumferential direction of the workpiece 300, and the stoppers 210 of the two position-limiting devices 200 can respectively stop two opposite sides of the workpiece 300, so that the workpiece 300 can be effectively separated from the inner diameter machining tool. Furthermore, the stoppers 210 of the plurality of position-limiting devices 200 are all in the same state, and the structure is simple and the operation is convenient.

Specifically, taking the workpiece 300 as an example of a cylinder, the process of machining the inner diameter of the cylinder by using the machining assembly provided by the present application is as follows:

firstly, the cylinder to be processed is placed on the upper end face of the positioning device 110, that is, the limitation of the horizontal movement freedom of the workpiece 300 to be processed in the horizontal directions of the X axis, the Y axis and the Z axis is realized through two pins on one side of the upper end face of the positioning device 110, and the limitation of the rotation freedom of the X axis, the Y axis and the Z axis is realized, so that the processing and positioning of the workpiece 300 are realized.

Secondly, after the machining is completed, the inner diameter machining tool starts to rise and return to the original point, at this time, the inner diameter machining tool may sleeve the machined workpiece 300 on the inner diameter machining tool and drive the workpiece 300 to lift upwards together, at this time, the limiting device 200 starts to work, and specifically, the driving part acts to move the stopper 210 towards the rotating shaft direction of the inner diameter machining tool, and at least part of the stopper 210 is located above the workpiece 300. Because the distance between the lower end surface of the insert 250 connected with the stop block 210 and the workpiece 300 is 1mm to 2mm, in the process that the workpiece 300 is driven by the inner diameter machining tool to rise, when the end surface of the workpiece 300 contacts the lower end surface of the insert 250, the workpiece 300 is separated from the inner diameter machining tool under the blocking action of the stop block 210, after the workpiece 300 is separated from the inner diameter machining tool, the inner diameter machining tool returns to the original position, the stop block 210 moves towards the direction of a rotating shaft far away from the inner diameter machining tool under the action of the driving part, namely, the stop block 210 is kept at the original position and can perform the following action, a complete working cycle is completed, and then the next working cycle is started, so that the phenomenon that the workpiece 300 is taken out by the inner diameter machining tool.

The application provides a processing subassembly can effectively prevent work piece 300 and cause the internal diameter machining cutter to take the phenomenon out of work piece 300 because of processing back and internal diameter machining cutter tight fit, and the work piece 300 that causes after the reducible internal diameter machining cutter of while takes out work piece 300 is scrapped to and take out work piece 300 the back from the internal diameter machining cutter precision that causes when getting work piece 300 and destroy, thereby improve machining efficiency and processing quality, and reduce the processing cost.

The workpiece 300 is subjected to the limiting action of the clamp provided by the application, and the dimensional data after the reaming and honing process is carried out by using the inner diameter processing cutter (shaft-shaped cutter) is as shown in fig. 10.

As shown in fig. 10, after the cylinder with HSM-5 inner diameter size is processed by twisting and honing, the size data process capability index CPK is 3.07, the engineering capability is excellent, and the size fluctuation can be 2um, which is compared with the case that the cylinder inner diameter size fluctuation is 6um after the related art is processed by inner circle grinding, the processing assembly provided by the application can effectively solve the grouping problem of the compressor cylinder inner diameter size by using the twisting and honing process, realizes zero special size, improves the fluctuation of the rotary compressor cylinder inner diameter size, reduces the matching difficulty of the cylinder inner diameter and the piston outer diameter in the assembling process of the compressor pump body, improves the production efficiency and the quality stability of the workpiece 300, and is suitable for popularization and application.

Further, other configurations and operations of the clamp 100 of the present application may be adapted by the prior art in the field and will not be described in detail herein.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means 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.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamp for use with an inner diameter machining tool, comprising:

a positioning device;

a stop device comprising a stop having a gap therebetween in a direction of the axis of rotation of the inner diameter machining tool, the stop configured to move relative to the positioning device in a plane perpendicular to the axis of rotation of the inner diameter machining tool.

2. The clamp of claim 1, further comprising:

a base;

the floating plate is arranged between the base and the positioning device and is connected with the base and the positioning device;

the limiting device further comprises a connecting assembly, the connecting assembly is connected with the floating plate and located on one side, away from the base, of the floating plate, the connecting assembly is provided with a guide groove, and the stop block is configured to move along the guide groove.

3. The clamp of claim 2, wherein the connection assembly comprises:

one end of the first connecting piece is connected with the floating plate, and the other end of the first connecting piece is provided with the guide groove;

the cover plate is arranged at the other end of the first connecting piece and connected with the first connecting piece, and the stop block is positioned between the first connecting piece and the cover plate.

4. The clamp of claim 3,

one side of the stop block facing the cover plate is provided with a guide hole, and the cover plate is provided with a through hole corresponding to the guide hole;

the limiting device further comprises a second connecting piece which is configured to be suitable for being abutted with the guide hole through the through hole;

wherein an end of the second connector facing the stopper is configured as a retractable ball structure configured to be adapted to abut against or separate from the guide hole based on movement of the stopper.

5. The clamp of claim 4,

one side of the first connecting piece facing the floating plate is provided with a positioning part, and the floating plate is provided with a positioning hole matched with the positioning part; and/or

The guide hole is a conical hole; and/or

The depth of the guide hole is less than or equal to 2 mm; and/or

The second connector is a ball plunger.

6. The clamp of any one of claims 1 to 5, wherein the stop arrangement further comprises:

the insert is detachably connected with the stop block and arranged opposite to the positioning device, and a gap is formed between the insert and the positioning device along the rotating shaft direction of the inner diameter machining cutter.

7. The clamp of any one of claims 3 to 5, wherein the stop comprises:

a first platen located within the guide slot and configured to move along the guide slot;

and the second pressing plate is connected with the first pressing plate, is perpendicular to the first pressing plate and faces the positioning device.

8. The clamp of claim 7, wherein the means for limiting further comprises:

the driving part is arranged on one side of the first pressing plate;

the first pressing plate is provided with a groove structure, and the groove structure and the second pressing plate are positioned on two sides of the first connecting piece;

wherein the driving part is configured to be connected with the first pressure plate through the groove structure so as to drive the first pressure plate to move.

9. A clamp according to any one of claims 2 to 5, wherein the positioning means comprises:

the positioning seat is connected with the floating plate, one side of the positioning seat, which is far away from the floating plate, is provided with a first limiting part and a second limiting part, and the first limiting part and the second limiting part are distributed at intervals.

10. The clamp according to any one of claims 1 to 5,

the number of the limiting devices is multiple, and the limiting devices are distributed along the circumferential direction of the positioning device at intervals.

11. A tooling assembly, comprising:

an inner diameter machining tool; and

the clamp of any one of claims 1 to 10, for use with the inner diameter machining tool.