CN210412606U - Clamping jaw clamping limiting structure - Google Patents

Clamping jaw clamping limiting structure Download PDF

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Publication number
CN210412606U
CN210412606U CN201921347211.7U CN201921347211U CN210412606U CN 210412606 U CN210412606 U CN 210412606U CN 201921347211 U CN201921347211 U CN 201921347211U CN 210412606 U CN210412606 U CN 210412606U
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China
Prior art keywords
clamping
guide rail
sliding
limiting
assembly
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Active
Application number
CN201921347211.7U
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Chinese (zh)
Inventor
常勇
麦裕强
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Guangdong Hongshi Laser Technology Co Ltd
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Foshan Beyond Laser Technology Co Ltd
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Priority to CN201921347211.7U priority Critical patent/CN210412606U/en
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Abstract

The utility model discloses a clamping jaw clamping limiting structure, which comprises a chuck body, clamping components arranged on the chuck body, a sliding component and a locking component, wherein the clamping components comprise at least three clamping parts symmetrically distributed on the chuck body, the sliding component corresponds to the quantity and the distribution positions of the clamping parts, the sliding component comprises a guide rail pressing strip, a sliding block arranged on the guide rail pressing strip and a driving device for driving the sliding block to move, the clamping components are arranged on the sliding block, and a clamping area is formed among the clamping parts; keep away from the one end of pressing from both sides dress subassembly on the sliding block and set up spacing step, the locking subassembly is installed and is being pressed from both sides between dress subassembly and the spacing step for the locking subassembly carries on spacing fixedly to the centre gripping region of pressing from both sides dress subassembly. The clamping components are distributed in a centrosymmetric manner and in an axisymmetric manner, so that the concentricity and the coaxiality of the processed workpiece are high, the clamping part of the clamping components is a roller group, and the workpiece is clamped without generating clamping marks because the peripheral walls of the roller group are smooth.

Description

Clamping jaw clamping limiting structure
Technical Field
The utility model relates to a clamping jaw presss from both sides tight limit structure, is applicable to other similar structures of taking the wind-guiding circle of the domestic pipeline fan of ventilation trade.
Background
The chuck jaw that uses at present belongs to pneumatic clamping basically, because gas has the expansibility, when pressing from both sides tight thin wall tubular product to pneumatic chuck jaw, tubular product can be pressed from both sides by the jaw, destroys the surface of processing tubular product, perhaps makes tubular product shape permanent deformation to can't process.
For example, chinese utility model patent CN201410731260.6 the utility model discloses a chuck, include: the chuck body is circular, a plurality of guide rails are arranged on the chuck body, and locking nuts are arranged on the guide rails; the clamping jaw is arc-shaped, a guide block is installed on the outer arc of the clamping jaw and inserted into the guide rail, the guide block is matched with the guide rail, the guide block slides in the guide rail, so that the clamping jaw can be adjusted, a cushion pad is installed on the inner arc of the clamping jaw, the clamping jaw is divided into a left structure and a right structure, and the left part and the right part of the clamping jaw are connected through a spring return device. The chuck is simple in structure and convenient to use, the buffer pads are mounted on the clamping jaws, clamping marks cannot be generated in the processing of various shaft parts, the precision of the processed parts is guaranteed, and pipes cannot be clamped flat by the clamping jaws and cannot deform. However, the planar workpiece is unstable in clamping, is easy to displace and even fall off, affects the precision and production efficiency of the machined workpiece, and is not suitable for the machining requirement of the square workpiece.
For example, chinese utility model patent cn201310597547.x the present invention discloses a sewing machine chuck, including: the clamping device comprises a clamping disc body, a plurality of sliding blocks and a plurality of clamping jaws; the chuck body is radially provided with a plurality of sliding grooves, the sliding block is arranged in the sliding grooves and can slide along the sliding grooves, the clamping jaws are arranged on the sliding block, the positioning jaws are arranged on the chuck body, and the retractable disc is arranged in the chuck body and can pull the sliding block to be synchronously retracted to the center of the chuck body or synchronously slide away from the center of the chuck body; the chuck body is also provided with a guide groove in the radial direction, the positioning claw is arranged in the guide groove and can move along the guide groove, and the base part of the positioning claw is provided with a fixing part which can fix the positioning claw at a certain position in the guide groove; the sliding grooves, the sliding blocks and the clamping jaws are respectively three, the adjacent interval between two sliding grooves and the guide groove is less than 120 degrees, the other sliding groove equally divides the two sliding grooves, and the angle formed by the moving direction of the positioning claw and the sliding direction of the adjacent sliding block is not more than 60 degrees. The invention has the advantages of convenient and accurate adjustment and positioning, large controllable range, wide application range and the like. However, the structure is complex, and the retraction and extension range of the three modules of the retraction and extension disc is not easy to control, so that the coaxiality and concentricity of the processed workpiece are low, and the workpiece precision is not high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an air guide ring not only tubular product can not be pressed from both sides flat by the jack catch, can not produce moreover and press from both sides the trace, and concentricity and axiality are high.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a clamping jaw clamping limiting structure comprises a chuck body, clamping assemblies, sliding assemblies and locking assemblies, wherein the clamping assemblies, the sliding assemblies and the locking assemblies are arranged on the chuck body, the clamping assemblies comprise at least three clamping pieces which are distributed on the chuck body in a central symmetry mode, the sliding assemblies correspond to the clamping pieces in number and distribution positions, the sliding assemblies comprise guide rail pressing strips, sliding blocks arranged on the guide rail pressing strips and driving devices for driving the sliding blocks to move, the clamping assemblies are arranged on the sliding blocks, and clamping areas are formed among the clamping pieces; and one end of the sliding block, which is far away from the clamping assembly, is provided with a limiting step, and the locking assembly is arranged between the clamping assembly and the limiting step, so that the locking assembly can limit and fix a clamping area of the clamping assembly.
The chuck body is circular, and the clamping part of the clamping area of the clamping assembly is a roller group, and the clamping assemblies are distributed in a central symmetry mode and in an axial symmetry mode, so that the concentricity and the coaxiality of the machined workpiece are high, smooth point contact is formed between the machined workpiece and the contact surface of the workpiece during clamping, and machining traces cannot be formed on the surface of the workpiece. Furthermore, the utility model discloses a clamping part that presss from both sides dress subassembly is the roller train, because the roller train periphery wall is all level and smooth, and the centre gripping work piece not only can not produce and presss from both sides the trace, has saved the gasket of preventing pressing from both sides the trace moreover, and secondly the gyro wheel more is favorable to the conveying of work piece along the axle rotation, can not produce the phenomenon of card shell, consequently very smooth and easy.
It is further preferable to the utility model, the clamping assembly is a claw group or a roller group.
The claw form has no strict requirements on the processed workpiece and has wide application range; the smooth surface of gyro wheel form can not form the vestige of centre gripping on the work piece surface, can reduce the condition emergence of card shell in the course of working, makes the course of working more smooth.
It is right the utility model discloses do further preferred, the locking subassembly includes U type limiting plate and spacing locking screw, U type limiting plate passes through spacing locking screw and guide rail layering swing joint.
The limiting plate is designed into a U-shaped structure, so that the limiting plate has multiple benefits, has a limiting function and a locking function, is easy to buy and process, is difficult to wear, has long service life and is easy to replace after being damaged.
It is further preferred to the utility model discloses, U type limiting plate includes first sliding part, intermediate junction portion and second sliding part, intermediate junction portion are used for connecting first sliding part and second sliding part to the restriction presss from both sides the position of dress subassembly.
It is right the utility model discloses do further preferred, all set up the rectangular type sliding groove hole of limiting plate on first sliding part and the second sliding part for spacing locking screw can the rectangular type sliding groove hole of limiting plate slides then spacing locking, thereby adjusts the mounted position of U type limiting plate.
The long strip-shaped sliding groove hole can realize the stepless adjustment of the clamping stroke of the U-shaped limiting plate, and is easy to install, cooperate and machine-form.
It is right the utility model discloses do further preferably, the guide rail layering includes the first guide rail strip of being connected with first sliding part and the second guide rail strip of being connected with second sliding part, two at least screw holes are seted up along the direction of height to the upper surface of first guide rail strip and second guide rail strip, behind the limiting plate rectangular shape sliding groove hole that spacing locking screw passes with the fixed connection of screw hole.
It is right the utility model discloses do further preferred, spacing step is L type sliding plate, the horizontal long slab of vertical short slab and level setting including vertical setting, horizontal long slab both sides set up the spacing step slide rail of L type be used for with guide rail layering sliding connection, easy secondary operation.
It is right the utility model discloses do further preferably, L type guide rail strip slide rail is seted up to the lateral wall at the angle of the below of first guide rail strip and second guide rail strip, through the spacing step slide rail of L type with the cooperation of counterpointing each other of L type guide rail strip slide rail, make the spacing step slide rail of L type can slide on the L type guide rail strip slide rail and drive press from both sides the dress subassembly and reciprocate and accomplish the centre gripping action of pressing from both sides the dress subassembly.
Sliding in the form of guide rails improves the smoothness of sliding.
It is right the utility model discloses do further preferably, the screw hole is in including setting up last screw hole and the setting in guide rail layering upper end the lower screw hole of guide rail layering lower extreme, through with U type limiting plate is installed and is adjusted on last screw hole or lower screw hole the mounting height of locking Assembly.
It is right the utility model discloses do further preferably, install between first guide rail strip and the second guide rail strip on every slip subassembly the sliding block, the length of horizontal long slab along first guide rail strip to second guide rail strip direction is less than or equal to the width between first guide rail strip and the second guide rail strip.
The advantage is, improve the gliding smoothness nature of U type limiting plate at horizontal long slab and guide rail strip upper surface.
Compared with the prior art, the utility model discloses profitable technological effect has been obtained: the chuck body is in a ring shape, and the clamping parts of the clamping areas of the clamping assemblies are roller groups, and the clamping assemblies are distributed in a centrosymmetric manner and in an axisymmetric manner, so that the concentricity and coaxiality of the processed workpiece are high; the clamping part of the clamping assembly is a roller set, and because the peripheral walls of the roller set are smooth, the workpiece is clamped without clamping marks and a gasket for preventing the clamping marks is omitted; secondly, the roller rotates along the shaft, so that the conveying of the workpiece is facilitated, and the phenomenon of shell clamping cannot occur, so that the roller is very smooth; the limiting plate is designed into a U-shaped structure, so that the limiting plate has multiple advantages, not only has a limiting function, but also has a locking function, and a workpiece with the structure is easy to buy and process; the long strip-shaped sliding groove hole can realize the stepless adjustment of the clamping stroke of the U-shaped limiting plate, and is easy to install, cooperate and machine-form; the limiting plate is designed into a U-shaped structure, so that the limiting plate has multiple benefits, has a limiting function and a locking function, is easy to buy and process, is difficult to wear, has long service life and is easy to replace after being damaged.
Drawings
Fig. 1 is a perspective view of a jaw clamping and limiting structure of the present invention;
fig. 2 shows a longitudinal cut-away view of the jaw clamping and limiting structure of the present invention;
fig. 3 shows a longitudinal right view of the jaw clamping and spacing structure of the present invention;
reference numerals:
1, a chuck body; 2, clamping a piece; 3, pressing a guide rail; 4, sliding blocks; 5 a drive device; 6, limiting steps; 7U-shaped limiting plates; 8, limiting a locking screw; 9 limiting plate strip-shaped sliding slot holes;
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
As shown in fig. 1, a clamping jaw clamping limiting structure comprises a chuck body 1, clamping components arranged on the chuck body 1, sliding components and locking components, wherein the clamping components comprise at least three clamping pieces 2 which are distributed on the chuck body in a centrosymmetric manner, the sliding components correspond to the clamping pieces 2 in number and distribution positions, the sliding components comprise guide rail pressing strips 3, sliding blocks 4 arranged on the guide rail pressing strips and driving devices 5 for driving the sliding blocks to move, the clamping pieces 2 are arranged on the sliding blocks 4, and clamping areas are formed among the clamping pieces 2; keep away from the one end of pressing from both sides dress subassembly on sliding block 4 and set up spacing step 6, the locking subassembly is installed and is being pressed from both sides between dress subassembly and spacing step 6 for the locking subassembly carries out spacing fixed to the centre gripping region of pressing from both sides the dress subassembly.
The chuck body 1 is in a ring shape, and the clamping parts of the clamping areas of the clamping assemblies are roller groups, and the clamping assemblies are distributed in a centrosymmetric manner and an axisymmetric manner, so that the concentricity and the coaxiality of the machined workpiece are high, smooth point contact is formed between the workpiece and the contact surface of the workpiece during clamping, and machining traces cannot be formed on the surface of the workpiece. Furthermore, the utility model discloses a clamping part that presss from both sides dress subassembly is the roller train, because the roller train periphery wall is all level and smooth, and the centre gripping work piece not only can not produce and presss from both sides the trace, has saved the gasket of preventing pressing from both sides the trace moreover, and secondly the gyro wheel more is favorable to the conveying of work piece along the axle rotation, can not produce the phenomenon of card shell, consequently very smooth and easy.
The clamping assembly is a claw group or a roller group. The claw form has no strict requirements on the processed workpiece and has wide application range; the smooth surface of gyro wheel form can not form the vestige of centre gripping on the work piece surface, can reduce the condition emergence of card shell in the course of working, makes the course of working more smooth.
As shown in fig. 2, the locking assembly includes a U-shaped limiting plate 7 and a limiting locking screw 8, and the U-shaped limiting plate 7 is movably connected with the guide rail pressing bar 3 through the limiting locking screw 8. The limiting plate is designed into a U-shaped structure, so that the limiting plate has multiple benefits, has a limiting function and a locking function, is easy to buy and process, is difficult to wear, has long service life and is easy to replace after being damaged.
Further, the U-shaped stopper plate 7 includes a first sliding portion, an intermediate connecting portion for connecting the first sliding portion and the second sliding portion and restricting a position of the clamping assembly, and a second sliding portion.
Furthermore, the first sliding part and the second sliding part are respectively provided with a limiting plate strip-shaped sliding groove hole 9, so that a limiting locking screw can slide in the limiting plate strip-shaped sliding groove hole 9 and then be limited and locked, and the installation position of the U-shaped limiting plate 7 can be adjusted. The long-strip-shaped sliding groove hole 9 can realize stepless adjustment of the clamping stroke of the U-shaped limiting plate 7, and is easy to install, cooperate and machine-form.
In addition, as shown in fig. 1, the guide rail batten 3 includes a first guide rail bar connected to the first sliding portion and a second guide rail bar connected to the second sliding portion, at least two threaded holes are formed in the upper surfaces of the first guide rail bar and the second guide rail bar along the height direction, and the limiting locking screw passes through the limiting plate elongated sliding slot hole 9 and then is fixedly connected to the threaded holes.
Further, the limiting step is an L-shaped sliding plate and comprises a vertically short plate and a horizontally long plate, the vertically short plate is vertically arranged, the horizontally long plate is horizontally arranged, and L-shaped limiting step sliding rails are arranged on two sides of the horizontally long plate and are used for being in sliding connection with the guide rail pressing strips 3. The secondary processing is easy.
Furthermore, the side walls of the corners below the first guide rail bar and the second guide rail bar are provided with L-shaped guide rail bar slide rails, and the L-shaped limiting step slide rails can slide on the L-shaped guide rail bar slide rails through the mutual alignment and matching of the L-shaped limiting step slide rails and the L-shaped guide rail bar slide rails so as to drive the clamping assembly to move up and down to complete the clamping action of the clamping assembly. Sliding in the form of guide rails improves the smoothness of sliding.
The threaded hole is in including setting up the last screw hole in guide rail layering 3 upper end and setting the screw hole under 3 lower extremes of guide rail layering, through with the mounting height of locking subassembly is adjusted to U type limiting plate installation on last screw hole or screw hole down.
As shown in fig. 3, a slide block is installed between the first guide rail bar and the second guide rail bar on each slide module, and the length of the horizontal long plate along the direction from the first guide rail bar to the second guide rail bar is less than or equal to the width between the first guide rail bar and the second guide rail bar. The smoothness of the sliding of the U-shaped limiting plate 7 on the upper surfaces of the horizontal long plate and the guide rail strip is improved.
The threaded hole in this embodiment includes that the setting is at the last screw hole of guide rail layering upper end and the setting is at the lower screw hole of guide rail layering lower extreme, adjusts the mounting height of locking subassembly through installing U type limiting plate on last screw hole or screw hole down. The height of the U-shaped limiting plate 7 is adjusted according to the diameter of a clamped workpiece, when the diameter of the clamped workpiece is smaller, the limiting locking screw 8 is fixed in the lower threaded hole, meanwhile, a space for the U-shaped limiting plate 7 to slide up and down is reserved between the limiting locking screw 8 and the guide rail pressing strip 3, then the height of the U-shaped limiting plate 7 on the guide rail pressing strip is adjusted through the limiting plate strip-shaped sliding groove hole 9, after the U-shaped limiting plate 7 reaches an appointed position (calculated through the diameter of the workpiece and the height of the clamping piece), the limiting locking screw 8 is screwed with the lower threaded hole, the U-shaped limiting plate 7 is kept fixed, and the position limitation of the lifting movement of the clamping piece is achieved. When the diameter of a clamped workpiece is large, the limiting locking screw 8 is fixed in the upper threaded hole, meanwhile, a space for the U-shaped limiting plate 7 to slide up and down is reserved between the limiting locking screw 8 and the guide rail pressing strip 3, then the height of the U-shaped limiting plate 7 on the guide rail pressing strip 3 is adjusted through the limiting plate strip-shaped sliding groove hole 9, after the U-shaped limiting plate 7 reaches an appointed position (calculated through the diameter of the workpiece and the height of the clamping piece), the limiting locking screw 8 is screwed with the upper threaded hole, the position of the U-shaped limiting plate 7 is guaranteed to be kept fixed, and accordingly the position limitation of the lifting motion of the clamping piece is achieved.

Claims (10)

1. A clamping jaw clamping and limiting structure comprises a chuck body, a clamping assembly, a sliding assembly and a locking assembly, wherein the clamping assembly, the sliding assembly and the locking assembly are arranged on the chuck body,
the clamping assembly comprises at least three clamping pieces which are centrosymmetrically distributed on the chuck body, the sliding assembly corresponds to the clamping pieces in number and distribution positions, the sliding assembly comprises a guide rail pressing strip, a sliding block arranged on the guide rail pressing strip and a driving device for driving the sliding block to move, the clamping pieces are arranged on the sliding block, and a clamping area is formed among the clamping pieces;
and one end of the sliding block, which is far away from the clamping assembly, is provided with a limiting step, and the locking assembly is arranged between the clamping assembly and the limiting step, so that the locking assembly can limit and fix a clamping area of the clamping assembly.
2. The clamping jaw spacing structure of claim 1, wherein: the clamping assembly is a claw group or a roller group.
3. The clamping jaw spacing structure of claim 1, wherein: the locking assembly comprises a U-shaped limiting plate and a limiting locking screw, and the U-shaped limiting plate is movably connected with the guide rail pressing strip through the limiting locking screw.
4. The jaw clamping limiting structure according to claim 3, wherein: the U-shaped limiting plate comprises a first sliding portion, an intermediate connecting portion and a second sliding portion, wherein the intermediate connecting portion is used for connecting the first sliding portion and the second sliding portion and limiting the position of the clamping assembly.
5. The jaw clamping limiting structure according to claim 4, wherein: and the first sliding part and the second sliding part are respectively provided with a limiting plate strip-shaped sliding groove hole, so that a limiting locking screw can slide in the limiting plate strip-shaped sliding groove hole and then be limited and locked, and the installation position of the U-shaped limiting plate is adjusted.
6. The clamping and position-limiting structure of a clamping jaw as claimed in claim 4, wherein the guide rail pressing bar comprises a first guide rail bar connected with the first sliding part and a second guide rail bar connected with the second sliding part, at least two threaded holes are formed in the upper surfaces of the first guide rail bar and the second guide rail bar along the height direction, and a position-limiting locking screw passes through the elongated sliding slot hole of the position-limiting plate and is fixedly connected with the threaded holes.
7. The clamping and limiting structure of the clamping jaws as claimed in claim 6, wherein the limiting steps are L-shaped sliding plates, and comprise vertically arranged short vertical plates and horizontally arranged long horizontal plates, and L-shaped limiting step sliding rails are arranged on two sides of each long horizontal plate and are used for being in sliding connection with the guide rail pressing strips.
8. The jaw clamping limiting structure according to claim 7, wherein: the side walls of the corners below the first guide rail bar and the second guide rail bar are provided with L-shaped guide rail bar slide rails, and the L-shaped limiting step slide rails can slide on the L-shaped guide rail bar slide rails through mutual alignment and matching of the L-shaped limiting step slide rails and the L-shaped guide rail bar slide rails so as to drive the clamping assembly to move up and down to complete the clamping action of the clamping assembly.
9. The clamping jaw spacing structure of claim 6, wherein: the threaded hole comprises an upper threaded hole formed in the upper end of the guide rail pressing strip and a lower threaded hole formed in the lower end of the guide rail pressing strip, and the installation height of the locking assembly is adjusted by installing the U-shaped limiting plate on the upper threaded hole or the lower threaded hole.
10. The jaw clamping limiting structure according to claim 7, wherein: the sliding block is installed between the first guide rail strip and the second guide rail strip on each sliding assembly, and the length of the horizontal long plate along the direction from the first guide rail strip to the second guide rail strip is smaller than or equal to the width between the first guide rail strip and the second guide rail strip.
CN201921347211.7U 2019-08-19 2019-08-19 Clamping jaw clamping limiting structure Active CN210412606U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921347211.7U CN210412606U (en) 2019-08-19 2019-08-19 Clamping jaw clamping limiting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921347211.7U CN210412606U (en) 2019-08-19 2019-08-19 Clamping jaw clamping limiting structure

Publications (1)

Publication Number Publication Date
CN210412606U true CN210412606U (en) 2020-04-28

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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111644765A (en) * 2020-05-19 2020-09-11 佛山市宏石激光技术有限公司 Pipe detection method of laser cutting machine
CN112486226A (en) * 2020-12-21 2021-03-12 合肥舒实工贸有限公司 Temperature adjusting device and temperature adjusting method of temperature controller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111644765A (en) * 2020-05-19 2020-09-11 佛山市宏石激光技术有限公司 Pipe detection method of laser cutting machine
CN111644765B (en) * 2020-05-19 2022-05-20 广东宏石激光技术股份有限公司 Pipe detection method of laser cutting machine
CN112486226A (en) * 2020-12-21 2021-03-12 合肥舒实工贸有限公司 Temperature adjusting device and temperature adjusting method of temperature controller

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Address after: 528311 Beijiao Town, Shunde District, Foshan, Guangdong, Beijiao, 8, two Pearl River Road, industrial park,

Patentee after: Guangdong Hongshi Laser Technology Co.,Ltd.

Address before: 528311 Beijiao Town, Shunde District, Foshan, Guangdong, Beijiao, 8, two Pearl River Road, industrial park,

Patentee before: FOSHAN BEYOND LASER TECHNOLOGY Co.,Ltd.

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Address after: 528311 No. 4 Anye Road, Shunjiang Community Industrial Park, Beijiao Town, Shunde District, Foshan City, Guangdong Province

Patentee after: Guangdong Hongshi Laser Technology Co.,Ltd.

Address before: 528311 Beijiao Town, Shunde District, Foshan, Guangdong, Beijiao, 8, two Pearl River Road, industrial park,

Patentee before: Guangdong Hongshi Laser Technology Co.,Ltd.

CP02 Change in the address of a patent holder