CN110900291A - Spring clamp for loading workpieces - Google Patents

Spring clamp for loading workpieces Download PDF

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Publication number
CN110900291A
CN110900291A CN201811081605.2A CN201811081605A CN110900291A CN 110900291 A CN110900291 A CN 110900291A CN 201811081605 A CN201811081605 A CN 201811081605A CN 110900291 A CN110900291 A CN 110900291A
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CN
China
Prior art keywords
clamping
spring
sheet metal
block
metal part
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811081605.2A
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Chinese (zh)
Inventor
徐兰香
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Efodi Shanghai Manufacturing Systems Engineering Co Ltd
Original Assignee
Efodi Shanghai Manufacturing Systems Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Efodi Shanghai Manufacturing Systems Engineering Co Ltd filed Critical Efodi Shanghai Manufacturing Systems Engineering Co Ltd
Priority to CN201811081605.2A priority Critical patent/CN110900291A/en
Publication of CN110900291A publication Critical patent/CN110900291A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/04Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers
    • B23Q7/043Construction of the grippers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)

Abstract

The invention relates to a spring clamp for loading a sheet metal part, which is used for clamping and positioning the sheet metal part and comprises an air cylinder, wherein a guide rod extends out of the air cylinder, a clamping module for clamping and positioning the sheet metal part is connected onto the guide rod, the guide rod drives the clamping module to move in a telescopic manner, the clamping module comprises a spring base, a clamping block and a supporting block, the clamping block is rotatably connected onto the spring base through a bolt, the clamping block is used for clamping the sheet metal part, a spring is arranged between the clamping block and the spring base, the spring is used for providing a force for the clamping block to rotate on the spring base around the bolt, the supporting block is used for supporting the sheet metal part, a limiting block is connected onto the air cylinder, and the limiting block is used for limiting the movement stroke of the clamping module. Compared with the prior art, the invention has the technical effects of small use space, good workpiece feeding stability and convenient maintenance.

Description

Spring clamp for loading workpieces
Technical Field
The invention relates to a clamp, in particular to a spring clamp for loading.
Background
In the small workpiece feeding process, because the sheet metal part is too small, the modes of supporting and clamping and fixing the positioning pin cannot be adopted, and most of the sheet metal part is fed in a strong magnet mode. The use of strong magnets often results in difficulties in maintenance when the magnets cannot be attracted and replaced after the magnetic force is reduced.
Chinese patent CN106141710B discloses a double-spring clamp auxiliary supporting device, which includes a hollow supporting seat, a supporting column installed in the supporting seat and capable of sliding up and down for supporting a workpiece, a first wedge block installed in the supporting seat and capable of sliding transversely and passing through the supporting column, the first wedge block having an upper wedge surface and a lower wedge surface parallel to each other, the supporting column being provided with a lifting mechanism sliding relatively to the upper wedge surface of the first wedge block to lift up and a lowering mechanism sliding relatively to the lower wedge surface of the first wedge block to lower down, one end of the first wedge block being provided with an extrusion spring mechanism automatically pushing the first wedge block to slide and making the supporting column lift up, and the other end of the first wedge block being provided with a push rod mechanism pushing the first wedge block to slide and making the supporting column lower. The auxiliary support is carried out on the workpiece, the workpiece can be automatically supported along with upward movement when the workpiece floats upwards, and gaps are eliminated, so that the support reliability is ensured. The structure is too complex and the manufacturing cost is high.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a spring clamp for an upper part, which has the advantages of small use space and good stability of the upper part.
The purpose of the invention can be realized by the following technical scheme:
a spring clamp for feeding a sheet metal part is used for clamping and positioning the sheet metal part and comprises a cylinder, a guide rod extends out of the cylinder, a clamping module for clamping and positioning the sheet metal part is connected onto the guide rod, the guide rod drives the clamping module to move in a stretching and retracting manner,
the clamping module comprises a spring base, a clamping block and a supporting block, the clamping block is rotatably connected to the spring base through a bolt, the clamping block is used for clamping a sheet metal part, a spring is arranged between the clamping block and the spring base, the spring is used for providing force for the clamping block to rotate on the spring base around the bolt, the supporting block is used for supporting the sheet metal part,
the limiting block is connected to the air cylinder and used for limiting the motion stroke of the clamping module.
The clamping module further comprises a connecting plate connected to the guide rod, and the spring base and the supporting block are connected to the connecting plate.
The spring base is equipped with two, the chucking piece is equipped with two, the bolt is equipped with two, and wherein each chucking piece all rotates through a bolt and connects on a spring base, and two chucking pieces are used for the both sides of centre gripping sheet metal component jointly.
The supporting shoe is equipped with three for support sheet metal component.
One end of the spring extends into the spring base, and the other end of the spring is abutted to the clamping block.
And a maintenance pull ring used for pulling out the bolt is connected to the bolt. The maintenance pull ring is arranged mainly for maintenance convenience, and if the spring fails, the bolt can be rapidly pulled out to replace the spring to achieve the function of rapid recovery.
The air cylinder is a double-guide-rod air cylinder, and a manual air cylinder or a pneumatic air cylinder can be selected freely according to different application occasions.
The cylinder sets up on the base.
The cylinder is further provided with a travel switch, and the limiting block is also provided with a travel switch.
The working principle of the spring clamp is as follows:
when the clamping device is used, a sheet metal part is firstly held by hands or a manipulator, then the cylinder is started, the clamping module approaches the sheet metal part along with the guide rod in the opening process of the cylinder, when the two clamping blocks contact the sheet metal part, the two clamping blocks are stressed to rotate around the bolt, the spring applies elasticity to the clamping blocks, the two clamping blocks clamp the sheet metal part, the stroke of the cylinder is finished, the limiting block and the stroke switch play a limiting role, and meanwhile, the supporting block supports the sheet metal part to prevent the sheet metal part from deviating;
after clamping and positioning the sheet metal part, the sheet metal part is welded to other parts or equipment, and then,
two chucking piece contact sheet metal component atresss are rotatory round the bolt among the cylinder closing process, utilize the elasticity of spring, and the chucking piece is thrown off the sheet metal component, and the cylinder stroke ends, and travel switch plays, and the centre gripping module resets.
According to the technical scheme, the bidirectional clamping block is mainly used for realizing free clamping and releasing of the sheet metal part in linear motion by utilizing the expansion and contraction of the spring to rotate along the rotation center.
The spring clamp can effectively utilize small space to flexibly release and place, and realizes the function of loading.
The invention uses the springs at two sides to clamp and effectively fix the sheet metal part.
The invention utilizes the expansion and contraction of the spring and rotates along the rotation center at a small angle in the process of the expansion and contraction movement of the clamping block, thereby playing the role of stably releasing the upper part.
According to the invention, the limiting block is used after the double-guide-rod cylinder is in place, the stability of the upper part is increased, and the supporting block is added near the spring to prevent the part from rotating.
Compared with the prior art, the invention has the following advantages:
the welding clamp has the advantages that the using space is small, the space of the welding clamp is effectively avoided, and a sheet metal part can be effectively fixed.
And secondly, the stability of the upper part is improved, and the matching degree of the sheet metal part is improved.
Thirdly, the overhaul is convenient: the invention can rapidly pull out the bolt to replace the spring to rapidly recover the function if the spring fails.
Drawings
FIG. 1 is a schematic view of a spring clamp in accordance with embodiment 1;
fig. 2 is a schematic view of a connection structure of the spring base and the clamping block in embodiment 1.
Reference numbers in the figures: 1. the device comprises a base, 2, a cylinder, 21, a guide rod, 22, a travel switch, 3, a limiting block, 4, a supporting block, 5, a clamping block, 6, a bolt, 7, a maintenance pull ring, 8, a spring, 9, a spring base, 10, a connecting plate, 11 and a sheet metal part.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
Referring to fig. 1 and 2, a spring clamp for feeding a sheet metal part 11 is used for clamping and positioning the sheet metal part, and includes a cylinder 2, a guide rod 21 extends from the cylinder 2, a clamping module for clamping and positioning the sheet metal part is connected to the guide rod 21, and the guide rod 21 drives the clamping module to perform telescopic motion.
The centre gripping module includes spring base 9, chucking piece 5 and supporting shoe 4, chucking piece 5 rotates through bolt 6 and connects on spring base 9, chucking piece 5 is used for the centre gripping sheet metal component, be equipped with spring 8 between chucking piece 5 and spring base 9, spring 8 is used for providing chucking piece 5 around bolt 6 pivoted power on spring base 9, supporting shoe 4 is used for supporting the sheet metal component, the centre gripping module still includes a connecting plate 10 of connecting on guide arm 21, spring base 9, supporting shoe 4 all connects on connecting plate 10. Spring base 9 is equipped with two, and chucking piece 5 is equipped with two, and bolt 6 is equipped with two, and wherein each chucking piece 5 all rotates through a bolt 6 and connects on a spring base 9, and two chucking pieces 5 are used for the both sides of centre gripping sheet metal component jointly. The supporting blocks 4 are three and used for supporting sheet metal parts. One end of the spring 6 extends into the spring base 9, and the other end of the spring abuts against the clamping block 5. The bolt 6 is connected with a maintenance pull ring 7 for pulling out the bolt 6. The maintenance pull ring 7 is arranged mainly for maintenance convenience, and if the spring fails, the bolt can be pulled out quickly to replace the spring to achieve a quick recovery function.
The cylinder 2 is connected with a limiting block 3, and the limiting block 3 is used for limiting the motion stroke of the clamping module. The cylinder 2 is a double-guide-rod cylinder, and a manual cylinder or a pneumatic cylinder can be selected freely according to different application occasions. The cylinder 2 is also provided with a travel switch 22, and the limiting block 3 is also provided with a travel switch 22. The cylinder 2 is provided on the base 1.
The working principle of the spring clamp of the embodiment is as follows:
when the clamping device is used, a sheet metal part is firstly held by hands or a manipulator, then the cylinder is started, the clamping module approaches the sheet metal part along with the guide rod in the opening process of the cylinder, when the two clamping blocks contact the sheet metal part, the two clamping blocks are stressed to rotate around the bolt, the spring applies elasticity to the clamping blocks, the two clamping blocks clamp the sheet metal part, the stroke of the cylinder is finished, the limiting block and the stroke switch play a limiting role, and meanwhile, the supporting block supports the sheet metal part to prevent the sheet metal part from deviating;
after clamping and positioning the sheet metal part, the sheet metal part is welded to other parts or equipment, and then,
two chucking piece contact sheet metal component atresss are rotatory round the bolt among the cylinder closing process, utilize the elasticity of spring, and the chucking piece is thrown off the sheet metal component, and the cylinder stroke ends, and travel switch plays, and the centre gripping module resets.
In the technical scheme of this embodiment, mainly utilize two-way chucking piece to utilize the flexible rotatory realization of rotation along the rotation center of the flexible of spring in linear motion to the sheet metal component with take off and put.
The spring clamp can effectively utilize the small space to flexibly release the positioning, and realizes the function of loading.
This embodiment uses two side spring chucking, the effectual fixed sheet metal component.
In the embodiment, the clamping block utilizes the expansion and contraction of the spring and rotates along the rotation center at a small angle in the process of telescopic movement, so that the effect of stably releasing the upper part is achieved.
This embodiment has used the stopper after two guide arms cylinders target in place, has increased the stability of upper part to increase the supporting shoe near the spring and prevent that the part is rotatory.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims (9)

1. A spring clamp for feeding a sheet metal part is used for clamping and positioning the sheet metal part and is characterized by comprising a cylinder (2), a guide rod (21) extends out of the cylinder (2), a clamping module for clamping and positioning the sheet metal part is connected onto the guide rod (21), the guide rod (21) drives the clamping module to move in a stretching and retracting manner,
the clamping module comprises a spring base (9), a clamping block (5) and a supporting block (4), the clamping block (5) is rotatably connected to the spring base (9) through a bolt (6), the clamping block (5) is used for clamping a sheet metal part, a spring (8) is arranged between the clamping block (5) and the spring base (9), the spring (8) is used for providing a force for the clamping block (5) to rotate on the spring base (9) around the bolt (6), and the supporting block (4) is used for supporting the sheet metal part,
the clamping device is characterized in that a limiting block (3) is connected to the air cylinder (2), and the limiting block (3) is used for limiting the movement stroke of the clamping module.
2. A spring clamp for upper parts according to claim 1, characterized in that the clamping module further comprises a connecting plate (10) connected to the guide bar (21), and the spring base (9) and the support block (4) are connected to the connecting plate (10).
3. A spring clamp for loading according to claim 2, characterized in that there are two spring bases (9), two clamping blocks (5) and two bolts (6), wherein each clamping block (5) is rotatably connected to one spring base (9) by one bolt (6), and the two clamping blocks (5) are used together for clamping both sides of the sheet metal part.
4. A spring clamp for upper parts according to claim 2, characterized in that the support blocks (4) are provided in three for supporting sheet metal parts.
5. A spring clamp for an upper part according to claim 2, characterized in that the spring (6) extends with one end into the spring base (9) and with the other end abutting the clamping block (5).
6. A spring clamp for a top part according to claim 2, characterized in that a service tab (7) for pulling out the bolt (6) is connected to the bolt (6).
7. A spring clamp for an upper part according to claim 1, characterized in that the cylinder (2) is a double-lead cylinder, selected from a manual cylinder or a pneumatic cylinder.
8. A spring clamp for an upper part according to claim 1, characterized in that the cylinder (2) is arranged on the base (1).
9. The spring clamp for the upper part according to claim 1, characterized in that a travel switch (22) is further arranged on the cylinder (2), and a travel switch (22) is further arranged on the limiting block (3).
CN201811081605.2A 2018-09-17 2018-09-17 Spring clamp for loading workpieces Pending CN110900291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811081605.2A CN110900291A (en) 2018-09-17 2018-09-17 Spring clamp for loading workpieces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811081605.2A CN110900291A (en) 2018-09-17 2018-09-17 Spring clamp for loading workpieces

Publications (1)

Publication Number Publication Date
CN110900291A true CN110900291A (en) 2020-03-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111960650A (en) * 2020-08-27 2020-11-20 浙江恒雁通用设备有限公司 Ranks machine clamping structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004043303A1 (en) * 2004-09-08 2006-03-23 Andreas Maier Gmbh & Co.Kg Clamping unit for e.g. milling machine, has clamping claw swiveled by feed motion from starting position around drag axis, and moved back the direction of feed motion into its starting position, using feed and return units, respectively
CN201115936Y (en) * 2007-09-11 2008-09-17 上汽通用五菱汽车股份有限公司 Clamping device of part
CN203956540U (en) * 2014-06-19 2014-11-26 安徽华菱汽车有限公司 A kind of fixture
CN207087369U (en) * 2017-06-29 2018-03-13 江苏永大新材料科技有限公司 A kind of clamp assemblies for the processing of rough Langaloy
CN207807149U (en) * 2018-01-04 2018-09-04 哈工大机器人***(佛山)有限公司 Self-adaptive positioning and clamping mechanism
CN208811671U (en) * 2018-09-17 2019-05-03 爱孚迪(上海)制造***工程有限公司 Spring perch for piece uploading

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004043303A1 (en) * 2004-09-08 2006-03-23 Andreas Maier Gmbh & Co.Kg Clamping unit for e.g. milling machine, has clamping claw swiveled by feed motion from starting position around drag axis, and moved back the direction of feed motion into its starting position, using feed and return units, respectively
CN201115936Y (en) * 2007-09-11 2008-09-17 上汽通用五菱汽车股份有限公司 Clamping device of part
CN203956540U (en) * 2014-06-19 2014-11-26 安徽华菱汽车有限公司 A kind of fixture
CN207087369U (en) * 2017-06-29 2018-03-13 江苏永大新材料科技有限公司 A kind of clamp assemblies for the processing of rough Langaloy
CN207807149U (en) * 2018-01-04 2018-09-04 哈工大机器人***(佛山)有限公司 Self-adaptive positioning and clamping mechanism
CN208811671U (en) * 2018-09-17 2019-05-03 爱孚迪(上海)制造***工程有限公司 Spring perch for piece uploading

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111960650A (en) * 2020-08-27 2020-11-20 浙江恒雁通用设备有限公司 Ranks machine clamping structure

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