CN121340001B - High-precision tool clamp for repeatedly hoisting workpiece of numerical control boring machine - Google Patents
High-precision tool clamp for repeatedly hoisting workpiece of numerical control boring machineInfo
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- CN121340001B CN121340001B CN202511912423.5A CN202511912423A CN121340001B CN 121340001 B CN121340001 B CN 121340001B CN 202511912423 A CN202511912423 A CN 202511912423A CN 121340001 B CN121340001 B CN 121340001B
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Abstract
The application relates to a high-precision tool clamp for repeatedly hoisting a workpiece of a numerical control boring machine, which belongs to the technical field of boring processing and comprises a tool base, positioning bodies and guide components, wherein the tool base is used for being detachably arranged on a boring machine workbench, the positioning bodies are arranged at the bottom of the workpiece, positioning holes for being in plug-in positioning fit with the positioning bodies are formed in the tool base, the positioning holes are in one-to-one correspondence with the positioning bodies, guide cone grooves are formed in the tool base, the guide cone grooves are in one-to-one correspondence with the positioning holes, the guide cone grooves are formed in the circumferential direction of the corresponding positioning holes, the inner diameter of the guide cone grooves increases gradually in the direction away from the bottom wall of the positioning holes, and the guide components are arranged on the tool base and are used for guiding the hoisted and lowered workpiece. The application has the advantages of ensuring the positioning precision and the positioning efficiency.
Description
Technical Field
The application relates to the technical field of boring processing, in particular to a high-precision tool clamp for repeatedly hoisting a workpiece of a numerical control boring machine.
Background
Boring refers to a cutting process in which the inner diameter of a preformed hole in a workpiece is enlarged by a boring cutter. When boring a workpiece with the weight of more than 50kg, a hoisting device is usually required to hoist the workpiece to a fixture of a boring machine workbench, the workpiece is clamped and fixed by the fixture, and the workpiece can be machined by a boring cutter on the boring machine.
In boring processing, repeated hoisting of a workpiece is often involved when a workpiece processing surface needs to be converted and a moving workpiece is suitable for the processing range of a numerical control boring machine, and the positioning accuracy of the workpiece and a fixture during repeated hoisting directly influences the processing quality. At present, when repeatedly hoisting a workpiece, the workpiece shakes and has centering deviation with a positioning surface of the fixture, so that the positioning precision is inaccurate and the positioning efficiency is low.
Disclosure of Invention
In order to help to ensure positioning accuracy and positioning efficiency, the application provides a high-precision fixture for repeatedly hoisting a workpiece of a numerical control boring machine.
The application provides a high-precision tool clamp for repeatedly hoisting a workpiece of a numerical control boring machine, which adopts the following technical scheme:
A high-precision fixture for repeated hoisting of a workpiece of a numerical control boring machine comprises:
the tool base is used for being detachably arranged on the boring machine workbench;
A plurality of positioning bodies are arranged at the bottom of the workpiece, the tool base is provided with positioning holes which are used for being spliced and matched with the positioning bodies in a positioning way, the positioning holes are in one-to-one correspondence with the positioning bodies, the tool base is provided with guide cone grooves which are in one-to-one correspondence with the positioning holes, the guide cone grooves are formed along the circumferential direction of the corresponding positioning holes, and the inner diameter of each guide cone groove increases gradually towards the direction away from the bottom wall of each positioning hole;
the guiding assembly is arranged on the tool base and used for guiding the lifted and lowered workpiece.
Preferably, the positioning bodies are arranged in two opposite directions, wherein one of the positioning bodies is circular in cross section, the other positioning body is diamond in cross section, the cross section of the positioning hole is matched with the cross section of the corresponding positioning body, and the fit clearance between the positioning body and the corresponding positioning hole is smaller than or equal to 0.01mm.
Preferably, the guide assembly comprises a guide plate oppositely arranged on the tool base, the guide plate is detachably arranged on the tool base, the guide plate is provided with guide parts, the guide parts are obliquely arranged, and the distance between the two opposite guide parts is gradually decreased towards the direction close to the tool base.
Preferably, the length of the tool base is smaller than that of the workpiece, and air floatation supporting bodies are arranged on two opposite sides of the tool base and used for supporting the thin-wall area of the workpiece.
Preferably, the air supporting support body comprises a support rod body and a support block, the support rod body is arranged on the tool base, an air passage is formed in the support rod body and is used for being communicated with an external air source, a plurality of mounting grooves are formed in the support rod body, a plurality of connecting holes are formed in the wall of the bottom of the mounting groove, the connecting holes are communicated with the air passage, the support block is arranged in the mounting grooves, a plurality of air outlet holes are formed in the support block, the air outlet holes are in one-to-one correspondence with the connecting holes, and the air outlet holes are used for being aligned or dislocated with the corresponding connecting holes.
Preferably, the air supporting body is hinged on the tool base, and the hinge axis of the air supporting body is arranged along the vertical direction.
Preferably, the fixture further comprises a clamping assembly, the clamping assembly comprises clamping blocks arranged on two opposite sides of the fixture base in a sliding mode and a driving source arranged on the fixture base, the clamping blocks are used for sliding towards a direction close to or far away from the workpiece to clamp or loosen the workpiece, and the driving source is used for driving the clamping blocks to slide.
Preferably, the tool base is internally provided with a locating sleeve in a sliding manner along the vertical direction, the locating sleeve corresponds to the locating holes one by one, the locating holes are formed in the corresponding locating sleeve, the locating sleeve is positioned in the corresponding guide cone groove, the tool base is provided with an adjusting component for adjusting the locating sleeve to slide towards a direction close to or far away from the workpiece, and when the locating body is positioned outside the locating holes, the top wall of the locating sleeve is connected with the inner wall of one end with the small diameter corresponding to the guide cone groove.
Preferably, the adjusting assembly comprises an adjusting body and a transmission part, the adjusting body corresponds to the locating sleeve one by one, the adjusting body is located in the corresponding locating sleeve, the adjusting body is arranged in the tool base in a sliding mode along the vertical direction, the adjusting body is used for being abutted to the corresponding locating body, the transmission part is used for enabling the adjusting body to drive the locating sleeve to slide when sliding, and when the adjusting body moves in a direction away from a workpiece, the transmission part drives the locating sleeve to move in a direction close to the workpiece.
Preferably, the driving medium includes spacing section of thick bamboo, isolating ring and spring, spacing section of thick bamboo sets up in the frock base, spacing section of thick bamboo and spacer sleeve one-to-one, the spacer ring sets up in spacing section of thick bamboo, the spacer ring will correspond spacing section of thick bamboo and separate into inside and outside two cavitys, spacer sleeve and correspond outer cavity sliding fit between spacing section of thick bamboo and the spacer ring, the regulator is with corresponding inner cavity sliding fit in the spacer ring, the spring sets up in spacing section of thick bamboo, the spring is used for supporting the regulator and slides towards the direction that is close to the work piece, set up the through-hole that is used for making the inside and outside two cavitys of spacer ring intercommunication on the spacer ring, all be provided with the piston on spacer sleeve and the regulator, piston and corresponding cavity sliding fit, the elasticity of spring is greater than the friction force sum between two pistons and the corresponding cavity inner wall.
In summary, the application has the following beneficial technical effects:
when the work piece is positioned with the tool base in the hoisting process, the setting of the guide assembly can guide for the decline of work piece, reduces the centering deviation that the work piece rocked and leads to, simultaneously under the guide of direction awl groove, can make the locating body of work piece bottom slide into corresponding locating hole fast, and then can reduce centering deviation in the repeated hoist and mount of work piece, helps guaranteeing positioning accuracy and positioning efficiency.
Drawings
Fig. 1 is a schematic overall structure of embodiment 1 of the present application.
Fig. 2 is an exploded view of the overall structure of embodiment 1 of the present application.
Fig. 3 is a partial structural sectional view of an air bearing support in embodiment 1 of the present application.
Fig. 4 is a structural sectional view of embodiment 2 of the present application.
Fig. 5 is an enlarged view of a portion a in fig. 4.
The reference numerals indicate that 1, a tool base; 2, a positioning body, 3, a positioning hole, 4, a guiding cone groove, 5, a guiding plate, 51, a guiding part, 6, an air-floating supporting body, 61, a supporting rod body, 62, a supporting block, 7, an air passage, 8, a mounting groove, 9, a connecting hole, 10, an air outlet hole, 11, a clamping component, 111, a clamping block, 112, a driving source, 12, a positioning sleeve, 13, an adjusting body, 14, a limiting cylinder, 15, a spacer ring, 16, a spring, 17, a through hole, 18, a piston, 19, a support, 20, a connecting rod, 21, a jogging groove, 22 and a workpiece.
Detailed Description
The application is described in further detail below in connection with fig. 1-5.
Example 1:
The embodiment of the application discloses a high-precision tool clamp for repeatedly hoisting a workpiece of a numerical control boring machine. Referring to fig. 1 and 2, the high-precision tool clamp for repeatedly hoisting a workpiece of a numerical control boring machine comprises a tool base 1, a positioning body 2 and a guide assembly, wherein the tool base 1 is used for being detachably installed on a numerical control boring machine workbench, specifically, the tool base 1 can be fixed on the numerical control boring machine workbench in a bolt, rivet and other modes, the tool base 1 is not limited herein, in order to improve the positioning accuracy between the tool base 1 and the numerical control boring machine workbench, a zero positioning module can be integrated on the bottom wall of the tool base 1, and the tool base can be in butt joint with a zero interface on the boring machine workbench through the zero positioning module, so that the positioning precision of the tool is ensured, wherein the zero positioning module and the zero interface belong to the prior art, and the structure and principle of the tool base are not repeated herein.
Referring to fig. 1 and 2, further, the cross section of the tool base 1 is rectangular, the upper surface of the tool base 1 is a locating surface, the tool base 1 is made of quenched steel, the surface roughness is ra0.8, smoothness and flatness of the locating surface are guaranteed, the length of the workpiece 22 is greater than that of the tool base 1, when the workpiece 22 is positioned and placed on the tool base 1, the workpiece 22 spans the tool base 1, the width of the tool base 1 is greater than or equal to one half of the length of the workpiece 22, and due to the fact that the workpiece 22 is large in mass, the workpiece 22 is symmetrically placed on the tool base 1, tilting and the like cannot occur.
Referring to fig. 2, the positioning body 2 is provided with a plurality of, and a plurality of positioning bodies 2 are all welded in work piece 22 bottom, offer on the frock base 1 be used for with positioning body 2 grafting location complex locating hole 3, locating hole 3 and positioning body 2 one-to-one, offered on the frock base 1 and led the awl groove 4, led awl groove 4 and locating hole 3 one-to-one, led awl groove 4 along the circumference of corresponding locating hole 3 and offered, the internal diameter of leading awl groove 4 is gradually increased towards the direction of keeping away from the locating hole 3 diapire. The guiding component is arranged on the tool base 1 and is used for guiding the lifted and lowered workpiece 22.
When the workpiece 22 is positioned with the tool base 1 in the hoisting process, the setting of the guide assembly can guide the lowering of the workpiece 22, so that centering deviation caused by shaking of the workpiece 22 is reduced, and meanwhile, under the guide of the guide cone groove 4, the positioning body 2 can quickly slide into the corresponding positioning hole 3, and further, centering deviation can be reduced in repeated hoisting of the workpiece 22, and the positioning precision and the positioning efficiency are guaranteed. The positioning body 2 is arranged at the bottom of the workpiece 22, so that the hole on the workpiece 22 can be avoided, and the integrity of the workpiece 22 can be ensured by only cutting off the positioning body 2 on the workpiece 22 after the machining is finished.
Referring to fig. 2, two positioning bodies 2 are arranged, the two positioning bodies 2 are symmetrically distributed along the center line of a workpiece 22, the cross section of one positioning body 2 is circular, the cross section of the other positioning body 2 is diamond-shaped, the cross section of a positioning hole 3 is matched with the cross section of the corresponding positioning body 2, and the fit clearance between the positioning body 2 and the corresponding positioning hole 3 is smaller than or equal to 0.01mm. The two positioning bodies 2 are respectively provided with the cylindrical pins and the diamond pins, so that a positioning mode of one surface and two pins is realized, positioning is reliable, and positioning errors are reduced.
Referring to fig. 2, in order to facilitate guiding the workpiece 22 lifted and lowered, the guiding assembly includes two guiding plates 5, the two guiding plates 5 are distributed on two opposite sides of the tool base 1, the two guiding plates 5 are respectively detachably disposed on two opposite sides of the workpiece 22, specifically, the guiding plates 5 are L-shaped, and the guiding plates 5 can be detachably fixed on the tool base 1 by means of locking bolts, rivets, tightening screws, etc., which is not limited herein.
Referring to fig. 2, the guide plates 5 have guide portions 51 at the upper ends, the guide portions 51 being inclined, and the distance between the guide portions 51 of the two guide plates 5 decreases toward the tool base 1, thereby forming a guide slope.
When the lifting device lifts the workpiece 22 to be installed in a descending manner, the workpiece 22 can be centered by the arrangement of the two opposite guide plates 5, so that convenience is brought to the positioning of the workpiece 22, and the positioning efficiency is improved.
Referring to fig. 2, in order to avoid bouncing when the workpiece 22 descends onto the tool base 1, a plurality of buffer blocks can be arranged on the surface of the tool base 1 according to requirements, and the buffer blocks are made of polyurethane, so that hoisting impact is absorbed by the buffer blocks, and the possibility of bouncing of the workpiece 22 can be well reduced.
Referring to fig. 2 and 3, air-floating supporting bodies 6 are arranged on two opposite sides of the tool base 1, the arrangement direction of the air-floating supporting bodies 6 on two sides is parallel to the length direction of the workpiece 22 during positioning and mounting, the air-floating supporting bodies 6 are used for supporting thin-wall areas of the workpiece 22, specifically, the air-floating supporting bodies 6 comprise supporting rod bodies 61 and supporting blocks 62, the supporting rod bodies 61 are arranged on the side edges of the tool base 1, the upper surfaces of the supporting rod bodies 61 are equal to or lower than the upper surfaces of the tool base 1, air passages 7 are formed in the supporting rod bodies 61 and are used for being communicated with an external air source, a plurality of mounting grooves 8 are formed in the upper surfaces of the supporting rod bodies 61, the plurality of mounting grooves 8 are arranged at intervals along the length direction of the supporting rod bodies 61, a plurality of connecting holes 9 are formed in the bottom wall of each mounting groove 8, the plurality of connecting holes 9 are communicated with the air passages 7, the supporting blocks 62 are in one-to-one correspondence with the mounting grooves 8, the supporting blocks 62 are detachably fixed in the corresponding mounting grooves 8 through countersunk bolts, the upper surfaces of the supporting blocks 62 are flush with the upper surfaces of the supporting rod bodies 61, a plurality of air outlet holes 10 are formed in the supporting blocks 62, the air outlet holes 10 are aligned with the connecting holes 9 one-to-one.
During the descending process of the workpiece 22 and the boring cutter processing, the air outlet holes 10 on the supporting blocks 62 aligned with the thin-wall areas of the workpiece 22 are aligned with the connecting holes 9, the air outlet holes 10 on the supporting blocks 62 staggered with the thin-wall areas of the workpiece 22 are staggered with the connecting holes 9, the corresponding connecting holes 9 are closed, then the air passage 7 is connected with an external air source, the air pressure is designed to be 0.4-0.6MPa, the air is discharged from the air outlet holes 10 aligned with the connecting holes 9, and dead weight deformation of the thin-wall areas of the workpiece 22 is counteracted by air static pressure, so that the positioning accuracy of the workpiece 22 is improved.
Referring to fig. 2 and3, supports 19 are fixed to opposite sides of the tool base 1, the supports 19 are in one-to-one correspondence with the air bearing bodies 6, support rod bodies 61 of the air bearing bodies 6 are hinged to the corresponding supports 19, and hinge axes of the support rod bodies 61 are arranged in the vertical direction. By rotating the support rod body 61 of the air bearing support body 6, the position of the air bearing support body 6 can be changed, which is helpful for adapting to different workpieces 22.
Referring to fig. 2 and 3, a fixing member for fixing the support rod 61 and the tool base 1 relatively is provided on the support 19, and in order to facilitate the fixing of the support rod 61 and the tool base 1 relatively, a fixing bolt (not shown in the drawings) is used for the fixing member, a bar hole (not shown in the drawings) is provided on the support 19, and the fixing bolt passes through the bar hole of the support 19 and the support rod 61 and then is in threaded engagement with a nut. By loosening or tightening the nuts, it is helpful to adjust and fix the support rod 61 to the desired position, avoiding unnecessary movement of the air bearing support 6.
Referring to fig. 2, the fixture further includes a clamping assembly 11, the clamping assembly 11 includes a plurality of clamping blocks 111 and a driving source 112, the clamping blocks 111 are respectively slidably disposed on two opposite sides of the fixture base 1, specifically, in the embodiment of the present application, the clamping blocks 111 are four, the four clamping blocks 111 are symmetrically distributed on two sides of a length direction of the workpiece 22 when the workpiece 22 is installed, the clamping blocks 111 are used for sliding towards a direction approaching or separating from the workpiece 22 to clamp or unclamp the workpiece 22, a sliding direction of the clamping blocks 111 is perpendicular to the length direction when the workpiece 22 descends, the driving source 112 is disposed on the fixture base 1, the driving source 112 corresponds to the clamping blocks 111 one by one, and the driving source 112 is used for driving the corresponding clamping blocks 111 to slide.
Referring to fig. 2, in order to facilitate the sliding of the clamping block 111, the driving source 112 may employ one of an air cylinder, a hydraulic cylinder, etc., and the clamping block 111 is fixedly connected to a piston rod of the corresponding driving source 112 without limitation.
When the workpiece 22 descends, the clamping blocks 111 are far away from the center of the tool base 1, enough space is provided for descending positioning of the workpiece 22, after the workpiece 22 and the tool base 1 are positioned, the corresponding clamping blocks 111 are driven to slide towards the center close to the tool base 1 by the driving source 112, so that the workpiece 22 is clamped by the clamping blocks 111, boring operation is facilitated, manual bolts or pressing plates are replaced by a hydraulic or pneumatic driving mode to clamp, uniform clamping force is guaranteed, and deformation of the workpiece 22 due to uneven clamping stress is avoided to a certain extent.
The embodiment 1 of the application is implemented by rotating and fixing the support rod body 61 to a required position for the thin-walled easy-deformation region of the workpiece 22 before hoisting the workpiece 22, and simultaneously aligning the air outlet holes 10 with the connecting holes 9 by the position of the support block 62 aligned with the thin-walled region of the workpiece 22, and dislocating the air outlet holes 10 on the support block 62 with the connecting holes 9 at the rest positions.
During lifting, along with gradual descending of the workpiece 22, the bottom of the workpiece 22 can slide down rapidly to be centered with the tool base 1 under the action of the guide parts 51 of the two opposite guide plates 5, so that centering deviation of the workpiece 22 caused by shaking is reduced, simultaneously, under the guide of the guide cone groove 4, the two positioning bodies 2 can slide into the corresponding positioning holes 3 rapidly, through the fact that the air passage 7 is communicated with an external air source, air is discharged from the air outlet holes 10 aligned with the corresponding connecting holes 9, dead weight deformation of the thin-wall area of the workpiece 22 is counteracted through air static pressure, positioning accuracy of the workpiece 22 is improved, after the workpiece 22 is positioned, the driving source 112 is started, the driving source 112 drives the corresponding clamping block 111 to slide towards a direction close to the center of the tool base 1, and the workpiece 22 is clamped by the clamping block 111, so that positioning and installation of the workpiece 22 are completed.
Example 2:
Referring to fig. 4 and 5, the difference between this embodiment and embodiment 1 is that a positioning sleeve 12 is slidably disposed in the tool base 1 along the vertical direction, the positioning sleeve 12 corresponds to the positioning holes 3 one by one, the positioning holes 3 are formed on the corresponding positioning sleeve 12, the positioning sleeve 12 is used for positioning and plugging with the corresponding positioning body 2, the positioning sleeve 12 is located in the corresponding guiding taper groove 4, an adjusting component for adjusting the sliding direction of the positioning sleeve 12 towards the direction approaching or departing from the workpiece 22 (refer to fig. 2) is disposed on the tool base 1, and when the positioning body 2 is located outside the positioning holes 3, the top wall of the positioning sleeve 12 is connected with the inner wall of the small diameter end of the corresponding guiding taper groove 4.
Referring to fig. 4 and 5, in order to facilitate the adjustment of the sliding of the positioning sleeve 12 in a direction approaching or separating from the workpiece 22 (refer to fig. 2), the adjustment assembly comprises an adjustment body 13 and a transmission member, the adjustment body 13 corresponds to the positioning sleeve 12 one by one, the adjustment body 13 is positioned in the corresponding positioning sleeve 12, the adjustment body 13 is arranged in the tool base 1 in a sliding manner along a vertical direction, the adjustment body 13 is used for abutting against the corresponding positioning body 2, the transmission member is used for driving the positioning sleeve 12 to slide when the adjustment body 13 slides, when the adjustment body 13 moves in a direction separating from the workpiece 22, the transmission member drives the positioning sleeve 12 to move in a direction approaching the workpiece 22, and when the workpiece 22 gradually descends, the positioning body 2 on the workpiece 22 gradually abuts against the adjustment body 13 in the corresponding position and drives the positioning sleeve 12 to move upwards through the transmission member so as to enlarge the contact area between the positioning sleeve 12 and the positioning body 2 and improve the transverse limiting force on the positioning body 2.
Referring to fig. 4 and 5, in order to facilitate the sliding of the adjusting body 13 and drive the positioning sleeve 12, the transmission member comprises a limiting cylinder 14, a spacer ring 15 and a spring 16, wherein the limiting cylinder 14 is embedded in the tool base 1, the limiting cylinders 14 and the positioning sleeve 12 are in one-to-one correspondence, the spacer ring 15 is fixedly arranged in the limiting cylinder 14, the outer diameter of the spacer ring 15 is smaller than the inner diameter of the limiting cylinder 14, the spacer ring 15 divides the corresponding limiting cylinder 14 into an inner cavity and an outer cavity, the positioning sleeve 12 is in sliding fit with an outer cavity between the corresponding limiting cylinder 14 and the spacer ring 15, the adjusting body 13 is in sliding fit with an inner cavity in the corresponding spacer ring 15, and the sliding of the positioning sleeve 12 and the adjusting body 13 is guided through the arrangement of the limiting cylinder 14 and the spacer ring 15.
Referring to fig. 4 and 5, the springs 16 are in one-to-one correspondence with the adjusting bodies 13, the springs 16 are fixedly arranged between the bottom wall of the limiting cylinder 14 and the bottom wall of the corresponding adjusting body 13, the extending direction of the springs 16 is parallel to the sliding direction of the corresponding adjusting body 13, the springs 16 are used for supporting the adjusting body 13 to slide towards the direction close to the workpiece 22 (refer to fig. 2), through holes 17 for enabling the inner cavity and the outer cavity of the isolating ring 15 to be communicated are formed in the bottom of the isolating ring 15, the piston 18 is fixedly adhered to the bottom ends of the locating sleeve 12 and the adjusting body 13, the piston 18 is in sliding fit with the corresponding cavity, the elastic force of the springs 16 is larger than the sum of friction forces between the two pistons 18 and the inner wall of the corresponding cavity, when the springs 16 are in a natural state, the top ends of the locating sleeve 12 are connected with the inner wall of one small diameter end of the guide cone groove 4, so that the guide cone groove 4 can not be influenced, and the locating body 2 can conveniently extend into the corresponding locating sleeve 12.
Referring to fig. 4 and 5, the positioning sleeve 12 is hinged with a plurality of connecting rods 20 along the circumferential direction thereof, the hinge axis of each connecting rod 20 is perpendicular to the sliding direction of the corresponding positioning sleeve 12, one end of each connecting rod 20, which is far away from the corresponding positioning sleeve 12, is hinged with a sliding block (not shown in the figure), the sliding block is embedded on the inner wall of the corresponding guiding cone groove 4, an embedded groove 21 which is in embedded fit with the connecting rod 20 is formed in the inner wall of the guiding cone groove 4, the sliding block is in sliding fit with the corresponding embedded groove 21, when the spring 16 is in a natural state, the top end of the positioning sleeve 12 is engaged with one end with the small diameter of the guiding cone groove 4, the connecting rod 20 is embedded in the corresponding embedded groove 21, the upper surface of the adjusting body 13 is lower than the upper surface of the corresponding positioning sleeve 12, so that the guiding cone groove 4 plays a role in guiding the positioning body 2, when the bottom of the workpiece 22 is attached to the surface of the tool base 1, the spring 16 is in a compressed state, and the sliding block is in abutting contact with one end of the embedded groove 21, which is far away from the positioning sleeve 12, and the circumferential direction of the positioning sleeve 12 is supported by the connecting rod 20, so that the strength of the positioning sleeve 12 is improved.
The embodiment 2 of the application is implemented by the principle that when the workpiece 22 is not positioned and installed with the tool base 1, the spring 16 is in a natural state, the top end of the positioning sleeve 12 is connected with the small diameter end of the guide cone groove 4, and the connecting rod 20 is embedded in the corresponding embedded groove 21.
When the workpiece 22 is gradually lifted and lowered, the positioning body 2 of the workpiece 22 quickly slides into the corresponding positioning sleeve 12 under the guide of the guide cone groove 4, then along with the continuous lowering of the workpiece 22, the positioning body 2 presses the corresponding adjusting body 13, the adjusting body 13 compresses the corresponding spring 16, the gas in the inner cavity of the isolating ring 15 is pushed into the outer cavity of the isolating ring 15 through the through hole 17, the gas drives the piston 18 in the outer cavity to drive the corresponding positioning sleeve 12 to move upwards to increase the contact area between the positioning sleeve 12 and the positioning body 2, the positioning sleeve 12 drives the corresponding connecting rod 20 to slide until the bottom of the workpiece 22 is attached to the surface of the tool base 1, at the moment, the sliding rod abuts against one end, away from the positioning sleeve 12, of the embedded groove 21, of the connecting rod 20 carries out limit support on the circumference of the positioning sleeve 12, and the transverse limit strength on the positioning body 2 can be improved by increasing the contact area between the positioning sleeve 12 and the corresponding positioning body 2.
The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511912423.5A CN121340001B (en) | 2025-12-18 | 2025-12-18 | High-precision tool clamp for repeatedly hoisting workpiece of numerical control boring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511912423.5A CN121340001B (en) | 2025-12-18 | 2025-12-18 | High-precision tool clamp for repeatedly hoisting workpiece of numerical control boring machine |
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| CN121340001A CN121340001A (en) | 2026-01-16 |
| CN121340001B true CN121340001B (en) | 2026-03-27 |
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| CN202511912423.5A Active CN121340001B (en) | 2025-12-18 | 2025-12-18 | High-precision tool clamp for repeatedly hoisting workpiece of numerical control boring machine |
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| CN107825205A (en) * | 2017-11-02 | 2018-03-23 | 广西玉柴机器股份有限公司 | Self-expanding dowel mechanism |
| CN120901312A (en) * | 2025-10-13 | 2025-11-07 | 成都成德重型锻造有限公司 | Horizontal numerical control lathe |
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| US5961107A (en) * | 1996-03-06 | 1999-10-05 | Morghen; Manfred A. | Workpiece indexing and clamping system |
| CN202985196U (en) * | 2012-12-07 | 2013-06-12 | 北京工研精机股份有限公司 | Gas path structure for transferring vacuum to sucker on shaft end face of rotating shaft |
| CN203738457U (en) * | 2014-02-27 | 2014-07-30 | 杭州钰友精密机械有限公司 | Clamp for machining end face of cylinder cover |
| CN210756605U (en) * | 2019-10-24 | 2020-06-16 | 阜宁县鸿达铸件有限公司 | Internal stay anchor clamps are used in motor housing processing |
| CN211540395U (en) * | 2019-12-27 | 2020-09-22 | 洛阳市精科主轴有限公司 | Precision finishing shape anchor clamps of preapring for an unfavorable turn of events |
| CN216097250U (en) * | 2021-10-29 | 2022-03-22 | 长沙瑞联材料科技有限公司 | Connecting seat welding tool |
| CN217223722U (en) * | 2022-05-12 | 2022-08-19 | 山东益顺自动化技术有限公司 | Guiding and positioning tool for machining inclined hole of valve seat |
| CN217750472U (en) * | 2022-06-13 | 2022-11-08 | 广西柳州第二机床厂有限公司 | Machining tool for thin plate flying wing part |
| CN115971921A (en) * | 2022-12-29 | 2023-04-18 | 天津宝涞精工集团股份有限公司 | Special-shaped piece vertical lathe machining end face boring clamp |
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2025
- 2025-12-18 CN CN202511912423.5A patent/CN121340001B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825205A (en) * | 2017-11-02 | 2018-03-23 | 广西玉柴机器股份有限公司 | Self-expanding dowel mechanism |
| CN120901312A (en) * | 2025-10-13 | 2025-11-07 | 成都成德重型锻造有限公司 | Horizontal numerical control lathe |
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| CN121340001A (en) | 2026-01-16 |
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