CN213917223U - Self-centering clamping pull-down auxiliary mechanism of tool clamp - Google Patents

Self-centering clamping pull-down auxiliary mechanism of tool clamp Download PDF

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Publication number
CN213917223U
CN213917223U CN202023264049.8U CN202023264049U CN213917223U CN 213917223 U CN213917223 U CN 213917223U CN 202023264049 U CN202023264049 U CN 202023264049U CN 213917223 U CN213917223 U CN 213917223U
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China
Prior art keywords
cylinder
clamping
product
pull
self
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CN202023264049.8U
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Chinese (zh)
Inventor
洪荣辉
束剑锋
叶宏
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Anhui Shunfu Precision Technology Co ltd
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Wuhu Xunfu Die Casting Manufacturing Co ltd
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Abstract

The utility model discloses a self-centering clamping pull-down auxiliary mechanism of a tool clamp, which comprises a tool bottom plate, wherein a cylinder is arranged on the tool bottom plate, the cylinder is a double-acting cylinder, the top end of the middle part of the cylinder is connected with a hinge assembly, the top part of the hinge assembly is provided with a clamping assembly matched with the hinge assembly, the clamping assembly is arranged in a motion seat, and the motion seat is arranged on the end surface of the cylinder through the extrusion of a buffer assembly, the hinge assembly drives a clamping opening in the clamping assembly to be opened when the cylinder is inflated to pull up, a machined product is put in, the hinge assembly drives the clamping opening to be closed when the cylinder is inflated to pull down, the gap between the clamping opening and the hinge assembly forms the micro asynchronization of a clamp on the left side and the right side, thereby realizing the rib center of a clamp opening centering product, and after the clamp opening clamps the product, the cylinder continues to pull down the motion seat compression spring to drive the clamp opening pull-down product, until the cylinder reaches the lower limit of the stroke, the purpose of attaching the product surface and the tool supporting surface is achieved.

Description

Self-centering clamping pull-down auxiliary mechanism of tool clamp
Technical Field
The utility model belongs to the technical field of the machine tooling, concretely relates to frock clamp presss from both sides tight drop-down complementary unit from line-up.
Background
At present, a known clamping auxiliary mechanism is formed by connecting a chuck, a pin, a connecting rod, a pin, a cylinder piston rod and a cylinder body. The air cylinder is fixed on the machining device through a bolt, a product is placed into the tool to be positioned, the air source switch of the pressing air cylinder is opened, the pressing air cylinder presses the product tightly, the switch of the clamping auxiliary mechanism is opened, and the clamping auxiliary mechanism can clamp the rib of the product.
However, many casting products have large surface areas and thin thicknesses, and the products are easy to deform after being demoulded, so that the problems of cutter vibration, over-cutting, poor product stability, increase in rejection rate and the like are easily caused during machining; general tight complementary unit of clamp can't realize from centering and press from both sides tightly the back and can drop down, will lead to eccentric unilateral chuck to press from both sides tightly, and the another side produces the clearance, and it is poor to press from both sides tight effect, and the product machine adds the sword that shakes and can not effectively improve, does not have drop down, and the product deformation can lead to the product face can't laminate with the frock reference surface, produces the clearance and appears the machine and cross the phenomenon of cutting easily.
SUMMERY OF THE UTILITY MODEL
Purpose of the utility model
The utility model provides a frock clamp presss from both sides tight drop-down complementary unit from centering to solve general tight complementary unit of clamp that mentions in the background art and can drop-down after can't realize from centering and pressing from both sides tightly, will lead to eccentric unilateral chuck to press from both sides tightly, the another side produces the clearance, it is poor to press from both sides tight effect, the product machine adds the sword that shakes and can not effectively improve, there is not drop-down, the product warp can lead to the product face can't laminate with the frock reference surface, produce the technical problem of the easy appearance machine of space and add the phenomenon of cutting.
Technical scheme
In order to achieve the above purpose, the utility model provides a technical scheme does: frock clamp's self-centering presss from both sides tight drop-down complementary unit, including the frock bottom plate, install the cylinder on the frock bottom plate, the cylinder is two effect cylinders, the middle part top of cylinder is connected with the hinge subassembly, the top of hinge subassembly is equipped with the clamping component rather than the looks adaptation, clamping component sets up in the motion seat, the motion seat passes through the extrusion setting of buffer unit the terminal surface of cylinder.
The further improvement lies in that: the hinge assembly comprises an adapter and a connecting piece, the piston at the top end of the cylinder is connected with the adapter, and the top end of the adapter is hinged to the connecting piece through a first pin.
The further improvement lies in that: the clamping component comprises a clamping opening, the clamping opening is formed by two sets of symmetrically arranged clamping pieces, each clamping piece is arranged in the mounting seat through a second pin, the mounting seat is arranged on the motion seat, a gap is reserved between the clamping pieces and the mounting seat, and therefore the two sets of clamping pieces can clamp the product in a movable mode.
The further improvement lies in that: the connecting piece comprises a fixed end, a connecting end is arranged at the bottom of the fixed end, a clamping end is arranged at the top of the fixed end, the connecting end is arranged in the adapter and matched with the adapter, and the clamping end is arranged at the bottom end of the clamping opening and matched with the arc surface at the bottom end of the clamping opening.
The further improvement lies in that: the buffering subassembly includes that four groups are the bolt that the symmetry set up, four groups the top symmetry of bolt install the bottom of motion seat, four groups the bottom symmetry of bolt is installed in the cylinder, the symmetry be equipped with in the cylinder with the mounting hole of bolt looks adaptation, every group the bolt outside all is equipped with the spring, the one end of spring is fixed the bottom of motion seat, the other end of spring is fixed the terminal surface of cylinder.
The further improvement lies in that: when aerifing the cylinder lower extreme, cylinder top piston rod drives the hinge subassembly and shifts up for clamping device is in the unclamping state, and when aerifing the cylinder upper end, cylinder bottom piston rod drives the hinge subassembly and moves down, makes clamping device be in taut state, thereby taut product face and the laminating of frock reference surface.
Advantageous effects
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
when the cylinder aerifys the pull-up, the hinge subassembly drives the clamp mouth among the clamping component and opens, put into and want the machined product, when the cylinder aerifys the pull-down, the hinge subassembly drives the clamp mouth closure, the clearance of clamp mouth and hinge subassembly, the clip trace asynchronism on both sides about forming, thereby realize pressing from both sides a mouthful centering product muscle and twine the center, press from both sides a mouthful tight product back, the cylinder continues to pull down motion seat compression spring and drives the product of pressing from both sides a mouthful pull-down, reach the stroke lower limit until the cylinder, realize the purpose of product face and the laminating of frock holding surface.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a part of the structure of the present invention;
FIG. 3 is a schematic view of the connection structure of the cylinder end face of the present invention;
fig. 4 is a schematic structural view of the hinge assembly of the present invention;
FIG. 5 is a schematic view of a machined product of the present invention in a loosened condition;
FIG. 6 is a schematic structural view of a machined product of the present invention in a self-centering process;
FIG. 7 is a schematic view of a machined product of the present invention in a clamped condition;
fig. 8 is a schematic structural view of the machined product of the present invention in a clamped and pulled-down state.
Reference numerals
1-a tooling bottom plate; 2-a cylinder; 3-a motion base; 301-a mounting seat; 4-an adaptor; 5-a connector; 6-a first pin; 7-clamping the opening; 701-a clip; 8-a second pin; 9-bolt; 10-spring.
Detailed Description
In order to facilitate understanding of the invention, the invention will be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which can be embodied in many different forms and are not limited to the embodiments described herein, but which are provided so as to render the disclosure of the invention more thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-8, this embodiment provides a self-centering clamping pull-down auxiliary mechanism of frock clamp, including frock bottom plate 1, install cylinder 2 on the frock bottom plate 1, cylinder 2 is double-acting cylinder, and the cylinder 2 model adopts SDA25X10 series cylinder, the middle part top of cylinder 2 is connected with the hinge subassembly, the top of hinge subassembly is equipped with the clamping component rather than the looks adaptation, clamping component sets up in motion seat 3, motion seat 3 passes through the extrusion setting of buffer unit and is in the terminal surface of cylinder 2.
Referring to fig. 1-8, the hinge assembly comprises an adapter 4 and a connecting piece 5, wherein the piston at the top end of the cylinder 2 is connected with the adapter 4, and the top end of the adapter 4 is hinged with the connecting piece 5 through a first pin 6.
Referring to fig. 1-8, clamping component includes pressing from both sides mouth 7, pressing from both sides mouth 7 comprises the clamping piece 701 that two sets of symmetries set up, every group clamping piece 701 sets up the inside at mount pad 301 through second pin 8, the mount pad sets up on the motion seat, clamping piece 701 with there is the space between the mount pad 301 to it presss from both sides tightly to be convenient for two sets of clamping pieces 701 to carry out the activity to the product.
Referring to fig. 1 to 8, the connecting member 5 includes a fixed end 501, a connecting end 502 is disposed at the bottom of the fixed end 501, a clamping end 503 is disposed at the top of the fixed end 501, the connecting end 502 is disposed in the adaptor 4 and is adapted to the adaptor 4, and the clamping end 503 is disposed at the bottom end of the clamping opening 7 and is adapted to the circular arc surface at the bottom end of the clamping opening 7.
Referring to fig. 1-8, the buffer assembly includes four sets of bolts 9 that are the symmetry and set up, four sets of the top symmetry of bolt 9 install the bottom of motion seat 3, four sets of the bottom symmetry of bolt 9 is installed in cylinder 2, the symmetry be equipped with in cylinder 2 with the mounting hole of bolt 9 looks adaptation, every set bolt 9 outside all is equipped with spring 10, spring 10's one end is fixed the bottom of motion seat 3, spring 10's the other end is fixed the terminal surface of cylinder 2.
In this embodiment, the bolt 9 may be fixedly disposed at the bottom of the motion base 3, or movably disposed (including bearing arrangement) at the bottom of the installation base 3.
Referring to fig. 1-8, when the lower end of the cylinder 2 is inflated, the piston rod at the top end of the cylinder 2 drives the hinge assembly to move upwards, so that the clamping device is in a loosening state, and when the upper end of the cylinder is inflated, the piston rod at the bottom end of the cylinder drives the hinge assembly to move downwards, so that the clamping device is in a tensioning state, and a tensioning product surface is attached to a tool datum plane.
When the product is clamped, the larger the force applied by the spring 10 is, the larger the clamping force of the clamping opening 7 on the product is.
With great attention to fig. 5, after an air source switch is opened, the lower end of the air cylinder 2 is inflated, a piston rod of the air cylinder 2 jacks up the adapter 4, the adapter 4 transmits force to the connecting piece 5 through the first pin 6, the connecting piece 5 is in arc contact with the upper end of the clamping opening 7 to prop the connecting piece, when the stroke of the air cylinder 2 reaches the upper limit, the whole self-centering clamping pull-down auxiliary mechanism is in a loosening state, and at the moment, a product to be machined can be placed into or a machined product can be taken out.
With emphasis on the reference to fig. 6, after the air source switch is closed, the upper end of the air cylinder 2 is inflated, the piston rod of the air cylinder 2 moves downwards to drive the adapter 4 to move downwards, the adapter 4 drives the connecting piece 5 to move downwards through the first pin 6, when the connecting piece 5 just contacts the arc surface at the lower end of the clamping opening 7, the whole mechanism starts to enter a self-centering process state, and because the connecting piece 5 is not connected with the two groups of clamping pieces 701 through the pins, two sides of the clamping opening 7 are not interfered with each other all the time, so that free centering is realized.
With the emphasis on fig. 7, after the air source switch is turned on, the upper end of the air cylinder 2 is inflated, the piston rod of the air cylinder 2 moves downwards to drive the adapter 4 to move downwards, the adapter 4 drives the connecting piece 5 through the first pin 6, the connecting piece 5 drives the clamping opening to clamp the product tendon, the self-centering process is just finished, and the product tendon is in a centered clamping state.
With great attention paid to fig. 8, after a product is centered and clamped, the piston rod of the air cylinder 2 continues to move downwards to drive the adapter 4 to continue to move downwards, the adapter 4 drives the connecting piece 5 to continue to move downwards through the first pin 6, the connecting piece continues to apply pressure to the arc at the lower end of the clamping opening 7, the clamping opening 7 transmits the downward pulling force to the second pin 8, the second pin 8 transmits the force to the moving seat 3, the moving seat 3 moves downwards under the force to compress the spring 10, in the compression process, the bolt 9 enters the mounting hole to drive the clamping opening 7 to clamp the product to move downwards, the surface of the product begins to be attached to the datum plane of the tool, the air cylinder moves to the lower limit, the spring 10 is compressed and stopped, and the clamping opening tensions the product surface to be attached to the datum plane of the tool.
The above-mentioned embodiments only express a certain implementation manner of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the protection scope of the present invention; therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (6)

1. Frock clamp presss from both sides tight drop-down complementary unit from line-centering, including frock bottom plate (1), its characterized in that: install cylinder (2) on frock bottom plate (1), cylinder (2) are two effect cylinders, the middle part top of cylinder (2) is connected with the hinge subassembly, the top of hinge subassembly is equipped with the clamping component rather than the looks adaptation, clamping component sets up in motion seat (3), motion seat (3) are in through the extrusion setting of buffer unit the terminal surface of cylinder (2).
2. The self-centering clamping pull-down assist mechanism of a tooling fixture of claim 1, wherein: the hinge assembly comprises an adapter piece (4) and a connecting piece (5), a piston at the top end of the cylinder (2) is connected with the adapter piece (4), and the top end of the adapter piece (4) is hinged to the connecting piece (5) through a first pin (6).
3. The self-centering clamping pull-down assist mechanism of a tooling fixture of claim 2, wherein: clamping unit is including pressing from both sides mouth (7), it constitutes, every group by clamping piece (701) that two sets of symmetries set up to press from both sides mouth (7) clamping piece (701) set up the inside at mount pad (301) in step through second pin (8), mount pad (301) set up on motion seat (3), clamping piece (701) with there is the space between mount pad (301) to it is tight that two sets of clamping pieces of being convenient for carry out the activity to the product and press from both sides.
4. The self-centering clamping pull-down assist mechanism of a tooling fixture of claim 3, wherein: connecting piece (5) are including stiff end (501), the bottom of stiff end (501) is equipped with link (502), the top of stiff end (501) is equipped with presss from both sides tight end (503), link (502) set up in adaptor (4) and with adaptor (4) looks adaptation, press from both sides tight end (503) and set up press from both sides the bottom of mouth (7) and with press from both sides mouth (7) bottom arc surface looks adaptation.
5. The self-centering clamping pull-down assist mechanism of a tooling fixture of claim 1, wherein: buffering subassembly includes that four groups are bolt (9) that the symmetry set up, four groups the top symmetry of bolt (9) install the bottom of motion seat (3), four groups the bottom symmetry of bolt (9) is installed in cylinder (2), cylinder (2) interior symmetry be equipped with the mounting hole of bolt (9) looks adaptation, every group bolt (9) outside all is equipped with spring (10), the one end of spring (10) is fixed the bottom of motion seat (3), the other end of spring (10) is fixed the terminal surface of cylinder (2).
6. The self-centering clamping pull-down assist mechanism of a tooling fixture of claim 1, wherein: when aerifing cylinder (2) lower extreme, cylinder (2) top piston rod drives the hinge subassembly and shifts up for clamping device is in the state of loosening, and when aerifing cylinder (2) upper end, cylinder (2) bottom piston rod drives the hinge subassembly and moves down, makes clamping device be in taut state, thereby taut product face and the laminating of frock reference surface.
CN202023264049.8U 2020-12-30 2020-12-30 Self-centering clamping pull-down auxiliary mechanism of tool clamp Active CN213917223U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023264049.8U CN213917223U (en) 2020-12-30 2020-12-30 Self-centering clamping pull-down auxiliary mechanism of tool clamp

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Application Number Priority Date Filing Date Title
CN202023264049.8U CN213917223U (en) 2020-12-30 2020-12-30 Self-centering clamping pull-down auxiliary mechanism of tool clamp

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CN213917223U true CN213917223U (en) 2021-08-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112692598A (en) * 2020-12-30 2021-04-23 芜湖舜富精密压铸科技有限公司 Self-centering clamping pull-down auxiliary mechanism of tool clamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112692598A (en) * 2020-12-30 2021-04-23 芜湖舜富精密压铸科技有限公司 Self-centering clamping pull-down auxiliary mechanism of tool clamp

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GR01 Patent grant
GR01 Patent grant
CP03 Change of name, title or address

Address after: 241000 No.1 Yongzhuquan Road, Nanling County Economic Development Zone, Wuhu City, Anhui Province

Patentee after: Anhui Shunfu Precision Technology Co.,Ltd.

Address before: 241000 phase II of Nanling Economic Development Zone, Wuhu City, Anhui Province

Patentee before: WUHU XUNFU DIE CASTING MANUFACTURING CO.,LTD.

CP03 Change of name, title or address