Novel pneumatic PSC quick-change positioning zero point system

Abstract

The utility model discloses a novel pneumatic PSC quick-change positioning zero point system, which relates to the technical field of machining clamps, and comprises a shell structure, two ends of the shell structure are respectively a first end used for connecting a PSC connecting handle and a second end used for connecting a machine tool, and a clamping space communicated with the first end and the second end is coaxially arranged in the shell structure; the pneumatic assembly comprises a first channel and a second channel which are arranged in the shell structure, the two ends of the first channel communicate with the outer wall of the shell structure and the clamping space correspondingly and are used for blowing away chippings after the PSC connecting handle is disassembled, and the two ends of the second channel communicate with the outer wall of the shell structure and the first end correspondingly and are used for detecting the air tightness of the PSC connecting handle and the first end after the PSC connecting handle is clamped; during clamping, the clamping precision of the PSC connecting handle is guaranteed through air tightness detection, and the repeated clamping precision of the PSC connecting handle is guaranteed by blowing away chippings after disassembly, so that the machining precision is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing fixture technical field, concretely relates to a novel pneumatic PSC quick change positioning zero point system. BACKGROUND

[0002] In the field of mechanical manufacturing, measurement, machine tool and robot automatic production line, datum is a very widely used concept. The concept of datum is used in the marking of part size in design, the positioning of workpiece in manufacturing, the measurement of size in checking, the determination of assembly position of parts in assembly, and the determination of part position in machine operation. In the field of mechanical industry, the datum used as reference is collectively referred to as zero point or zero position. In processing or measurement, the zero point of workpiece must be determined first, and then processing or measurement is carried out according to the zero point.

[0003] PSC: Precision Stool Coupling (precision tool coupling system), which is a modular, high-precision, quick-change tool holder interface system, used to connect machine tool spindle (usually machining center) and cutting tool (such as milling cutter, drill, tap, etc.).

[0004] In the process of cutting, multiple workpieces often need to be disassembled and assembled multiple times, and different tools need to be replaced to process space. During processing, debris is often generated, and when replacing tools, debris falls randomly. During the process of replacing PSC tool holder to replace tools, the installation of tools will be affected due to the influence of debris, affecting the processing precision and reducing the processing quality of workpieces. CONTENT OF THE UTILITY MODEL

[0005] In view of the above defects or deficiencies in the prior art, it is expected to provide a novel pneumatic PSC quick change positioning zero point system.

[0006] The utility model provides a novel pneumatic PSC quick change positioning zero point system, comprising:

[0007] The shell structure is provided with a clamping space communicated with the first end and the second end coaxially in the inside of the shell structure.

[0008] The shell structure comprises a shell, the shell is provided with an interface sleeve at the first end, the interface sleeve comprises a column segment and a stage segment fixedly connected coaxially, the column segment extends from the first end to the inside of the shell, and the stage segment is located outside the shell and abuts against the first end.

[0009] The pneumatic assembly comprises a first channel arranged inside the shell structure, one end of which is communicated with the outer wall of the shell structure and the other end of which is communicated with the clamping space; and the pneumatic assembly further comprises a second channel arranged inside the shell structure, one end of which is communicated with the outer wall of the shell structure and the other end of which is communicated with the first end;

[0010] The first channel comprises a first passage arranged inside the shell and a second passage arranged inside the column segment, two ends of the first passage are respectively communicated with the inner wall and the outer wall of the shell, two ends of the second passage are respectively communicated with the outer wall and the inner wall of the column segment, and one end of the first passage communicated with the inner wall of the shell is communicated with one end of the second passage communicated with the outer wall of the column segment.

[0011] The second channel comprises a third passage arranged inside the shell and a fourth passage arranged inside the table stage, two ends of the third passage are respectively communicated with the outer wall of the shell and the first end, two ends of the fourth passage are respectively communicated with two opposite side walls of the table stage, and one end of the third passage communicated with the first end is communicated with one end of the fourth passage communicated with the table stage close to the shell.

[0012] According to the technical scheme provided by the embodiment of the utility model, the inside of the shell structure is symmetrically provided with a pneumatic space on both sides of the clamping space, and the novel pneumatic PSC quick-change positioning zero point system further comprises:

[0013] The clamping mechanism is coaxially movably arranged in the clamping space.

[0014] The clamping mechanism is coaxially movably arranged in the clamping space.

[0015] According to the technical scheme provided by the embodiment of the utility model, the inside of the shell structure is symmetrically provided with a pneumatic space on both sides of the clamping space, and the novel pneumatic PSC quick-change positioning zero point system further comprises:

[0016] The clamping mechanism is coaxially movably arranged in the clamping space.

[0017] The clamping mechanism is coaxially movably arranged in the clamping space.

[0018] According to the technical scheme provided by the utility model embodiment, the clamping assembly further comprises:

[0019] The sealing ring is sleeved on one end of the pull claw close to the second end, and is used for avoiding the scattering of the plurality of pull claws.

[0020] The blocking ring is sleeved on one end of the pull claw group close to the second end.

[0021] The clamping spring is sleeved on the blocking ring.

[0022] The first elastic member is sleeved on the clamping section and is located on one side of the blocking ring close to the second end.

[0023] According to the technical scheme provided by the utility model embodiment, the clamping mechanism comprises:

[0024] The piston is movably arranged in the pneumatic space, and divides the pneumatic space into cavity one and cavity two which are mutually sealed.

[0025] The second elastic member is arranged in the cavity one, the axis direction of the second elastic member is parallel to the axis direction of the shell structure, and the two ends of the second elastic member abut against the inner wall of the cavity one and the piston respectively.

[0026] According to the technical scheme provided by the utility model embodiment, the side wall of the clamping section is provided with a guide groove, the clamping mechanism further comprises a clamping member, the piston is provided with a pushing part on the side wall close to the clamping space, and the side wall of the piston close to the clamping space further has a containing part, the containing part is used for containing the clamping member when the PSC handle is unlocked; the shell structure is further provided with a communication port inside, which is used for communicating the pneumatic space and the clamping space, and containing the clamping member.

[0027] According to the technical scheme provided by the utility model embodiment, the second end of the shell is provided with a rear cover, which is used for closing the second end, cavity three is formed between the rear cover and the clamping mechanism, and the shell structure is further provided with a communication channel inside, which is used for communicating the cavity three and the cavity two.

[0028] The first air inlet space is arranged on the side of one of the pneumatic spaces away from the clamping space inside the shell, the first air inlet space is communicated with the outside through an air passage one, is used for connecting an external air source, and the first air inlet space is communicated with the cavity two.

[0029] The second air inlet space is communicated with the cavity two through the air passage two and is used for connecting an external air source.

[0030] To sum up, the technical scheme specifically discloses a novel pneumatic PSC quick-change positioning zero point system, which comprises a shell structure, the two ends of the shell structure are a first end and a second end respectively, the first end is used for connecting a PSC handle, the second end is used for connecting a machine tool, and a clamping space communicated with the first end and the second end is coaxially arranged in the shell structure; the pneumatic assembly comprises a first passage and a second passage, the first passage is arranged in the shell structure and communicated with the outer wall of the shell structure and the clamping space at two ends respectively, is used for blowing away debris after the PSC handle is disassembled, and the second passage is arranged in the shell structure and communicated with the outer wall of the shell structure and the first end at two ends respectively, is used for detecting the air tightness of the PSC handle and the first end after the PSC handle is clamped.

[0031] By arranging the first passage, debris generated in the machining process can be blown away after the PSC handle is disassembled, the debris can be concentratedly cleaned, the debris does not affect the clamping work next time, the precision of repeated clamping of the PSC handle is ensured, and then the machining precision is ensured; by arranging the second passage, the air tightness of the PSC handle and the first end can be detected when the PSC handle is clamped, the clamping is ensured to be tight, so that the clamping precision is ensured, and then the machining precision is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0032] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-restrictive embodiments made with reference to the accompanying drawings:

[0033] Figure 1 It is a sectional view of a novel pneumatic PSC quick-change positioning zero point system.

[0034] Figure 2 It is Figure 1 It is an enlarged view of A in the middle.

[0035] Reference signs in the drawings: 1, PSC handle; 2, shell; 3, interface sleeve; 4, second passage; 5, fourth passage; 6, pull rod; 7, pull claw; 8, sealing ring; 9, blocking ring; 10, clamping spring; 11, first elastic member; 12, piston; 13, cavity one; 14, cavity two; 15, second elastic member; 16, guide groove; 17, clamping member; 18, pushing part; 19, containing part; 20, communication port; 21, rear cover; 22, cavity three; 23, communication channel; 24, first air inlet space; 25, air passage one; 26, second air inlet space; 27, air passage two; 28, sealing member. DETAILED DESCRIPTION

[0036] The utility model will be further explained in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, and not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description.

[0037] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. The utility model will be explained in detail below in combination with the drawings and embodiments.

[0038] Please refer to Figure 1 and Figure 2 A new type of pneumatic PSC quick-change positioning zero system comprises:

[0039] The shell structure has a first end and a second end at both ends, the first end is used for connecting the PSC handle 1, and the second end is used for connecting the machine tool. A clamping space in communication with the first end and the second end is coaxially arranged in the shell structure.

[0040] The pneumatic assembly comprises a first channel arranged in the shell structure, one end of the first channel is in communication with the outer wall of the shell structure, and the other end is in communication with the clamping space, and is used for blowing away the debris after the PSC handle 1 is disassembled. The pneumatic assembly further comprises a second channel arranged in the shell structure, one end of the second channel is in communication with the outer wall of the shell structure, and the other end is in communication with the first end, and is used for detecting the air tightness between the PSC handle 1 and the first end after the PSC handle 1 is clamped.

[0041] Specifically, after the PSC handle 1 is clamped, the second channel is inflated by the external air tightness detection mechanism, and then the pressure is maintained for a preset time. Whether the air pressure value decreases is observed. If the air pressure value does not change, it means that the air tightness between the PSC handle 1 and the first end is good, and the PSC handle 1 is clamped in place.

[0042] After the workpiece is machined, the PSC handle 1 is disassembled. At this time, the debris in the machining process will be left. By inflating the first channel, the airflow flows through the first channel to the inside of the clamping space, which can blow away the falling debris, thereby facilitating centralized cleaning and avoiding interference of the debris on the clamping of the PSC handle 1 next time, thereby avoiding reducing the machining precision.

[0043] Further, the pneumatic space is symmetrically arranged in the shell structure inside the clamping space. A new type of pneumatic PSC quick-change positioning zero system further comprises:

[0044] The clamping mechanism is coaxially movably arranged in the clamping space. The clamping mechanism moves axially to unlock or lock the PSC handle 1.

[0045] The clamping mechanism is movably arranged in the pneumatic space and is symmetrically arranged on both sides of the clamping mechanism, and is used for limiting and releasing the clamping mechanism to realize locking or unlocking of the PSC handle 1.

[0046] Specifically, the process of unlocking or locking the PSC handle 1 is realized by axial movement of the clamping mechanism. When the PSC handle 1 needs to be locked, the clamping mechanism moves towards the second end, and then the clamping mechanism is limited by the clamping mechanism to avoid the clamping mechanism from returning to the original position, thereby realizing the locking of the PSC handle 1. When the PSC handle 1 needs to be unlocked, the clamping mechanism is released from the clamping mechanism, and the clamping mechanism moves axially towards the first end, thereby realizing the unlocking of the PSC handle 1.

[0047] Further, the shell structure includes a shell 2, the shell 2 has a first end and a second end, the first end is provided with an interface sleeve 3;

[0048] The interface sleeve 3 includes a column segment and a platform stage coaxially fixedly connected, the column segment extends from the first end to the inside of the shell 2, and the platform stage is located outside the shell 2 and abuts against the first end.

[0049] Specifically, since the clamping space is coaxially arranged in the shell 2, the interface sleeve 3 is arranged at the first end, so the interface sleeve 3 is coaxial with the shell 2. When assembling, the column segment of the interface sleeve 3 is placed into the shell 2 from the first end until the platform stage contacts the first end, thereby realizing the assembly of the shell 2 and the interface sleeve 3. A through hole capable of accommodating the PSC handle 1 is provided through the interface sleeve 3, and the through hole is coaxial with the interface sleeve 3.

[0050] Further, the first channel includes a first passage and a second passage 4, the first passage is arranged in the shell 2, and the second passage 4 is arranged in the column segment. The two ends of the first passage are respectively communicated with the inner wall and the outer wall of the shell 2. The two ends of the second passage 4 are respectively communicated with the outer wall and the inner wall of the column segment, and one end of the first passage communicated with the inner wall of the shell 2 is communicated with one end of the second passage 4 communicated with the outer wall of the column segment.

[0051] The second channel includes a third passage and a fourth passage 5, the third passage is arranged in the shell 2, and the fourth passage 5 is arranged in the platform stage. The two ends of the third passage are respectively communicated with the outer wall of the shell 2 and the first end. The two ends of the fourth passage 5 are respectively communicated with the two opposite side walls of the platform stage. One end of the third passage communicated with the first end is communicated with one end of the fourth passage 5 communicated with the shell 2.

[0052] Specifically, one end of the second passage 4 communicates with the inner wall of the column segment, and the other end of the second passage 4 communicates with the outer wall of the column segment, which is close to the second end, thereby forming a downward inclined gas blowing passage. After the PSC handle 1 is unlocked, residual debris will appear during processing. By blowing gas into the first channel, the gas flow passes through the second passage 4, blows the debris out of the interface sleeve 3, and finally collects and cleans up to avoid reducing the clamping accuracy of the PSC handle 1;

[0053] The fourth passage 5 communicates with the two opposite side walls of the table stage, specifically the side wall in contact with the first end and the side wall away from the first end. Thus, after the PSC handle 1 is clamped, the gas is filled into the second channel and the pressure is maintained for a preset time. If the pressure value in the second channel decreases, it indicates that the PSC handle 1 and the interface sleeve 3 are closed, and the interface sleeve 3 and the first end are closed, and the PSC handle 1 is clamped in place.

[0054] It should be noted that the second channel can be provided with multiple channels, which are uniformly distributed in the circumferential direction. Thus, multi-point gas tightness detection can be performed to ensure that each point between the PSC handle 1 and the interface sleeve 3 and the interface sleeve 3 and the first end is in a closed state, thereby ensuring the clamping accuracy of the PSC handle 1.

[0055] Further, the clamping mechanism comprises:

[0056] The pull rod 6 has a fixedly connected clamping segment and a clamping segment, the clamping segment is close to the second end relative to the clamping segment, and the side wall of the clamping segment is provided with a guide portion; the guide portion can be in the form of an inclined surface;

[0057] The clamping assembly is sleeved on the clamping segment and moves towards the second end direction through the pull rod 6. The clamping assembly and the guide portion cooperate, and the clamping assembly is switched to an open state to clamp the PSC handle 1;

[0058] Further, the clamping assembly comprises:

[0059] The pull claw group comprises a plurality of pull claws 7 distributed in the circumferential direction of the clamping segment, and the outer wall of the pull claw 7 close to the first end is provided with a clamping protrusion;

[0060] The sealing ring 8 is sleeved on one end of the pull claw 7 close to the second end, which is used to prevent the scattering of the plurality of pull claws 7;

[0061] The stop ring 9 is sleeved on one end of the pull claw group close to the second end;

[0062] The clasp spring 10 is sleeved on the stop ring 9;

[0063] The first elastic member 11 is sleeved on the clamping segment and located on one side of the stop ring 9 close to the second end.

[0064] Further, the inner wall of the PSC handle 1 is provided with a clamping recess matched with the clamping protrusion.

[0065] Specifically, the puller claw group is composed of a plurality of puller claws 7 distributed circumferentially. The puller claw 7 is provided with a groove on the side wall near the second end, and a sealing ring 8 is arranged in the groove. Thus, the sealing ring 8 can cover the plurality of puller claws 7 to prevent them from falling off.

[0066] The puller claw 7 is also provided with a connecting protrusion on the side wall near the second end, and a stop ring 9 is sleeved on the connecting protrusion. Optionally, the stop ring 9 can be a half-ring structure.

[0067] The outer wall of the stop ring 9 is provided with a clamping groove, and a clamping spring 10 is arranged in the clamping groove. Thus, the clamping spring 10 can limit the stop ring 9 to prevent it from falling off.

[0068] Further, one end of the PSC handle 1 is provided with a receiving groove, i.e., the end of the PSC handle 1 extending to the clamping space. The inner wall of the receiving groove is provided with a clamping recess matched with the clamping protrusion.

[0069] Thus, when the clamping mechanism moves towards the second end, specifically, the pull rod 6 moves along the axial direction towards the second end, and through the inclined surface form of the guide part on the clamping section, it cooperates with one end of the puller claw 7 near the first end, so that the puller claw group switches to the open state, and the clamping protrusion is pressed into the clamping recess, thereby achieving the locking of the PSC handle 1. Correspondingly, when the pull rod 6 moves along the axial direction towards the first end, the clamping protrusion is no longer pressed, and it is separated from the clamping recess, thereby achieving the unlocking of the PSC handle 1.

[0070] Further, the clamping mechanism comprises:

[0071] A piston 12 movably arranged in the pneumatic space, and separating the pneumatic space into two mutually sealed cavities, i.e., cavity one 13 and cavity two 14.

[0072] A second elastic member 15 arranged in the cavity one 13, the axis direction of the second elastic member 15 being parallel to the axis direction of the shell structure, and the two ends of the second elastic member 15 abutting against the inner wall of the cavity one 13 and the piston 12 respectively.

[0073] Further, the side wall of the clamping section is provided with a guide groove 16, and the clamping mechanism further comprises a clamping member 17. The piston 12 is provided with a pushing part 18 on the side wall near the clamping space, and the side wall of the piston 12 near the clamping space also has a receiving part 19 for accommodating the clamping member 17 when unlocking the PSC handle 1. The inside of the shell structure is also provided with a communication port 20 for communicating the pneumatic space and the clamping space and accommodating the clamping member 17.

[0074] When the PSC handle 1 is locked, the piston 12 moves towards the second end, pushing the clamping member 17 to move in the communication port 20 into the guide groove 16 and being extruded by the extrusion part 18, so that the pull rod 6 is close to the second end and is limited to lock the PSC handle 1;

[0075] When the PSC handle 1 is unlocked, the piston 12 moves towards the first end, the extrusion part 18 is separated from the clamping member 17, the clamping member 17 moves in the communication port 20 to separate from the guide groove 16, so that the pull rod 6 is close to the first end to unlock the PSC handle 1.

[0076] Further, the second end of the shell 2 is provided with a rear cover 21 for closing the second end, and a cavity three 22 is formed between the rear cover 21 and the clamping mechanism, and a communication channel 23 is further arranged inside the shell structure for communicating the cavity three 22 and the cavity two 14;

[0077] The first air inlet space 24 is arranged inside the shell 2 on the side of one of the pneumatic spaces away from the clamping space, and the first air inlet space 24 is communicated with the outside through the air passage one 25 for connecting an external air source, and the first air inlet space 24 is communicated with the cavity two 14;

[0078] The second air inlet space 26 is arranged inside the shell 2 on the side of the other pneumatic space away from the clamping space, and the second air inlet space 26 is communicated with the outside through the air passage two 27 for connecting an external air source, and the second air inlet space 26 is communicated with the cavity one 13.

[0079] The clamping member 17 can be selected as a steel ball.

[0080] Specifically, when it is needed to lock the PSC handle 1, the PSC handle 1 is manually taken and installed, one end of the clamping mechanism close to the first end extends into the accommodating groove of the PSC handle 1, the clamping mechanism is moved towards the second end by inflating the cavity one 13, in this process, the clamping member 17 moves along the side wall of the piston 12 close to the pull rod 6, the piston 12 pushes the clamping member 17 to move in the communication port 20 towards the pull rod 6, and under the extrusion of the extrusion part 18, the part of the clamping member 17 close to the clamping mechanism enters the guide groove 16 and cooperates with the inner wall of the guide groove 16 to provide a pressure to the clamping mechanism close to the second end, so that the clamping mechanism moves towards the second end, finally, the clamping member 17 is respectively in contact with the inner wall of the guide groove 16, the inner wall of the communication port 20 and the extrusion part 18 in the circumferential direction, which can limit the clamping mechanism to avoid displacement, and ensure that the clamping mechanism can quickly clamp the PSC handle 1;

[0081] When it is needed to unlock the PSC handle 1, the cavity two 14 is filled with air, so that the clamping mechanism moves towards the first end, the pushing part 18 pushes away the clamping part 17, and the clamping part 17 is no longer squeezed. At this time, the cavity two 14 and the cavity three 22 are communicated, air enters the cavity three 22, so that the clamping mechanism moves towards the first end, the clamping part 17 is matched with the inner wall of the guide groove 16, the clamping part 17 is guided by the inner wall of the guide groove 16, the clamping part 17 is separated from the guide groove 16, and the clamping mechanism is no longer pressed. Finally, the clamping part 17 enters the containing part 19, so that the PSC handle 1 is quickly unlocked.

[0082] It should be noted that the transition surface between the containing part 19 and the pushing part 18 is a slope, which is used to guide the movement of the clamping part 17.

[0083] It should be noted that, in order to ensure the sealing of the cavity one 13, the cavity two 14 and the cavity three 22, a sealing element 28 is arranged on the piston 12 and the pull rod 6. The type of the sealing element 28 can be a rubber sealing ring.

[0084] It should be noted that the pull rod 6 can be a split structure, which is connected by threads, so as to provide convenience when the whole device is installed and disassembled, and interference is avoided.

[0085] Working principle: when the PSC handle 1 is locked, the piston 12 blocks the communication channel 23, and the clamping protrusion is squeezed into the clamping depression by the pull rod 6. When it is needed to unlock the PSC handle 1, the first air inlet space 24 is filled with air by an external air source, the air enters the cavity two 14, the piston 12 is pushed towards the first end, so that the second elastic element 15 is compressed, the pushing part 18 of the piston 12 no longer pushes the clamping part 17, and the containing part 19 corresponds to the communication port 20. At the same time, the piston 12 no longer blocks the communication channel 23, the air enters the cavity three 22, the pull rod 6 is pushed towards the first end, the clamping part 17 is separated from the guide groove 16 by the guiding cooperation of the clamping part 17 and the guide groove 16, and the clamping part 17 moves to the containing part 19. The pull rod 6 continues to move, the blocking ring 9 abuts against the interface sleeve 3, and the pull rod 6 and the blocking ring 9 are compressed by the movement of the pull rod 6. At the same time, the clamping section no longer squeezes the clamping protrusion, and the clamping protrusion is separated from the clamping depression. Thus, the PSC handle 1 is unlocked, so that the staff can disassemble the PSC handle 1, and the air is discharged after disassembly.

[0086] When it is needed to lock the PSC handle 1, first, the PSC handle 1 is installed into the interface sleeve 3, the one end of the pull rod 6 close to the first end and the one end of the pull claw 7 with the clamping protrusion are extended into the accommodating groove of the PSC handle 1, the second gas inlet space 26 is filled with gas through the external gas source, the gas enters the cavity one 13, the piston 12 is pushed close to the second end, the clamping piece 17 is moved in the direction close to the pull rod 6 through the guide slope formed between the pushing part 18 and the accommodating part 19, and is in contact with the inner wall of the guide groove 16, so as to enter the guide groove 16, the circumferential side wall of the clamping piece 17 can abut against the inner wall of the communication port 20, the inner wall of the guide groove 16 and the pushing part 18, so as to limit the pull rod 6, in this process, the guide part in the form of the slope on the clamping section cooperates with the one end of the pull claw 7 close to the first end, so that the pull claw group is switched to the open state, the clamping protrusion is pressed into the clamping recess, so as to realize the locking of the PSC handle 1.

[0087] When the PSC handle 1 is disassembled after the machining is completed, the debris generated in the machining process will fall off in the disassembling process, the gas is blown into the first channel, the airflow blows the debris into the clamping space, and at this time, the clamping mechanism is closer to the first end, the side wall close to the first end of the blocking ring 9 abuts against the interface sleeve 3, so as to form a plane for receiving the debris, and then the debris can be collected and cleaned, so as to avoid reducing the clamping accuracy when the PSC handle 1 is clamped next time, so as to ensure the machining accuracy.

[0088] The above description is only the preferred embodiment of the utility model and the explanation of the applied technical principles. Those skilled in the art should understand that the utility model range involved in the utility model is not limited to the technical scheme formed by the specific combination of the above technical features, and should also cover other technical schemes formed by the above technical features or equivalent features in any combination without departing from the utility model concept. For example, the above features are replaced with the technical features disclosed in the utility model (but not limited to) having similar functions to form the technical scheme.

Claims

1. A new pneumatic PSC quick change positioning zero system, characterized in that, The utility model relates to a kind of new pneumatic PSC quick-change positioning zero system, including: Shell structure, the first end and the second end are respectively at both ends of the shell structure, the first end is used to connect PSC handle (1), the second end is used to connect machine tool, coaxial with the first end and the second end inside the shell structure is provided with the clamping space communicated; The shell structure includes shell (2), the first end and the second end of the shell (2), the first end is provided with interface sleeve (3), the interface sleeve (3) includes coaxial fixed connection column section and stage, the column section extends to the inside of the shell (2) from the first end, the stage is located outside the shell (2), and with the first end abuts; Pneumatic assembly, the first channel is arranged inside the shell structure, one end of the first channel is communicated with the outer wall of the shell structure, and the other end is communicated with the clamping space;The second channel is also included in the pneumatic assembly, and the second channel is arranged inside the shell structure, one end of the second channel is communicated with the outer wall of the shell structure, and the other end is communicated with the first end; The first channel includes first passage and second passage (4), the first passage is arranged inside the shell (2), and the second passage (4) is arranged inside the column section, the first passage is communicated with the inner wall and the outer wall of the shell (2) respectively at both ends, the second passage (4) is communicated with the outer wall and the inner wall of the column section respectively at both ends, and one end of the first passage communicated with the inner wall of the shell (2) is communicated with one end of the second passage (4) communicated with the outer wall of the column section; The second channel includes third passage and fourth passage (5), the third passage is arranged inside the shell (2), and the fourth passage (5) is arranged inside the stage, the third passage is communicated with the outer wall of the shell (2) and the first end respectively at both ends, the fourth passage (5) is communicated with the two opposite side walls of the stage respectively at both ends, and one end of the third passage communicated with the first end is communicated with one end of the fourth passage (5) communicated with the stage close to the shell (2).

2. A new pneumatic PSC quick change zero positioning system according to claim 1, characterized in that, The inside of the shell structure is symmetrically provided with pneumatic space on both sides of the clamping space, and the new pneumatic PSC quick-change positioning zero system further includes: Clamping mechanism, the clamping mechanism is coaxially movably arranged in the clamping space; Clamping mechanism, the clamping mechanism is movably arranged in the pneumatic space, and the clamping mechanism is symmetrically arranged on both sides of the clamping mechanism.

3. A new pneumatic PSC quick change zero positioning system according to claim 2, characterized in that, The inner wall of the PSC handle (1) is provided with a clamping recess, and the clamping mechanism includes: Pull rod (6), the pull rod (6) has fixedly connected clamping section and clamping section, the clamping section is close to the second end relative to the clamping section, and the side wall of the clamping section is provided with a guide portion; Clamping assembly, the clamping assembly is sleeved on the clamping section, and the clamping assembly includes a pull claw group, the pull claw group includes a plurality of pull claws (7) distributed along the circumference of the clamping section, one end of the pull claw (7) close to the first end is matched with the guide portion, and the outer wall of the pull claw (7) is provided with a clamping protrusion matched with the clamping recess.

4. A novel pneumatic PSC quick change zero positioning system according to claim 3, characterized in that, The clamping assembly further includes: A sealing ring (8) is sleeved on one end of the puller claw (7) close to the second end, for preventing the puller claws (7) from scattering; A stop ring (9) is sleeved on one end of the puller claw group close to the second end; A circlip (10) is sleeved on the stop ring (9); A first elastic member (11) is sleeved on the clamping section and located on one side of the stop ring (9) close to the second end.

5. A novel pneumatic PSC quick change zero positioning system as claimed in claim 4, wherein, The clamping mechanism comprises: A piston (12) is movably arranged in the pneumatic space and separates the pneumatic space into cavity one (13) and cavity two (14) which are mutually sealed; A second elastic member (15) is arranged in the cavity one (13), the axis direction of the second elastic member (15) is parallel to the axis direction of the shell structure, and the two ends of the second elastic member (15) respectively abut against the inner wall of the cavity one (13) and the piston (12).

6. A novel pneumatic PSC quick change zero positioning system as claimed in claim 5, wherein, The side wall of the clamping section is provided with a guide groove (16), the clamping mechanism further comprises a clamping member (17), the piston (12) is provided with a pushing part (18) on the side wall close to the clamping space, and the piston (12) is further provided with a containing part (19) on the side wall close to the clamping space, the containing part (19) is used for containing the clamping member (17) when the PSC handle (1) is unlocked; the shell structure is further provided with a communication port (20) inside, for communicating the pneumatic space and the clamping space, and containing the clamping member (17).

7. A novel pneumatic PSC quick change zero positioning system as claimed in claim 6, wherein, The second end of the shell (2) is provided with a rear cover (21) for closing the second end, a cavity three (22) is formed between the rear cover (21) and the clamping mechanism, and the shell structure is further provided with a communication channel (23) inside, for communicating the cavity three (22) and the cavity two (14); The first air inlet space (24) is arranged on one side of the pneumatic space away from the clamping space inside the shell (2), the first air inlet space (24) is communicated with the outside through an air passage one (25) for connecting an external air source, and the first air inlet space (24) is communicated with the cavity two (14); The second air inlet space (26) is arranged on one side of the other pneumatic space away from the clamping space inside the shell (2), the second air inlet space (26) is communicated with the outside through an air passage two (27) for connecting an external air source, and the second air inlet space (26) is communicated with the cavity one (13).

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