CN103264369B - Retractable feeding mechanism - Google Patents
Retractable feeding mechanism Download PDFInfo
- Publication number
- CN103264369B CN103264369B CN201310160789.2A CN201310160789A CN103264369B CN 103264369 B CN103264369 B CN 103264369B CN 201310160789 A CN201310160789 A CN 201310160789A CN 103264369 B CN103264369 B CN 103264369B
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- piston rod
- spring
- piston
- holder
- screw
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Abstract
The invention discloses a retractable feeding mechanism which is characterized by comprising a cylinder. A hollow piston rod and a piston are arranged in the cylinder, the piston is positioned on the piston rod, an elastic positioning mechanism capable of limiting the piston is arranged on the piston rod, two ends of the cylinder are in seal fit with the piston rod, a bit is connected with an end of the piston rod and comprises a bit body and a clamping part, inner holes which are respectively communicated with the piston rod and a feeding pipe are arranged in the bit body, the clamping part is arranged on two sides of the bit body, elastic elements are arranged between the clamping part and the bit body, the clamping part can clamp a screw by the aid of the elastic elements, and the cylinder is divided into a first air chamber and a second air chamber by the piston.
Description
Technical field
The present invention relates to a kind of automatic screw to criticize, particularly the telescopic feed mechanism criticized of a kind of automatic screw.
Background technology
Along with industrialized development, the lifting of production efficiency plays conclusive effect for the development of enterprise, and the instrument that before thus a lot of, manual simply loaded down with trivial details work all have employed automation substitutes.
Screw assembling almost relates to most industrial products, and the turn of the screw is exactly a simple loaded down with trivial details job, and the general assembling adopting manual type to complete screw, this mode production efficiency is low, and labour intensity is large.Thus for above-mentioned defect, the automatic screw-driving machine that have developed a kind of hand-held realizes the mode of Automated assembly, get screw, the process implementation of the turn of the screw completes automatically, to a certain degree can improve production process, enhance productivity, but the effect improved is still limited, when screw location, batch mouth of filature can contact surface of the work especially, criticizing mouth is metal, thus easy the paint of surface of the work to be scratched, even disfiguring workpiece surface, and the filature of said structure can not screw, thus being necessary that design is a can comprehensive automatic screw-driving, and can not destroy product surface, the automatic screw-driving machine of the hand-held screwed can be realized.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of can comprehensive automatic screw-driving and can not destroy product surface, the automatic screw-driving machine of the hand-held screwed can be realized.
The technical solution adopted for the present invention to solve the technical problems is:
Telescopic feed mechanism, it is characterized in that: comprise cylinder body, the piston rod being provided with hollow in cylinder body and the piston be arranged on piston rod, and piston rod is provided with the elastic locating mechanism that can limit piston position, the two ends of cylinder body coordinate with piston rod packing, and the end of this piston rod is connected with batch mouth, criticize mouth and comprise batch mouth main body and holder, have in batch mouth main body to be provided with and be communicated with piston rod respectively and endoporus that feed pipe is communicated with, holder is hubbed at batch mouth main body both sides, the flexible member that can make holder pinching screw is provided with between this holder and batch mouth main body, described cylinder body is divided into the first air chamber and the second air chamber by piston.
Described elastic locating mechanism comprises and is arranged at the first spring on piston rod and the second spring, and the first spring and the second spring lay respectively at the both sides of this piston, and this first spring is arranged in described first air chamber, and this second spring is arranged in described second air chamber.
Described cylinder body comprises cylinder main body, drive end bearing bracket and rear end cap, and described piston rod and drive end bearing bracket and rear end cap seal.
Described piston comprises a sleeve pipe fixing with piston rod, and sleeve pipe is provided with two spacing rings, is provided with the sealing ring be sealed and matched with inboard wall of cylinder block between two spacing rings, and the top, one end of described first spring is pressed on drive end bearing bracket, and other end top is pressed on corresponding spacing ring; The top, one end of described second spring is pressed on rear end cap, and other end top is pressed on corresponding spacing ring.
Described cylinder body is provided with guide pad, guide pad is provided with gathering sill, the gib block be slidably matched with gathering sill is provided with in gathering sill, gib block is provided with fixed block, this fixed block is provided with pilot hole, described piston rod is arranged in pilot hole, and pilot hole inwall is provided with locating convex block, and piston rod outer wall is provided with the groove coordinated with this locating convex block.
Described flexible member is Compress Spring, described batch of mouth main body both sides are provided with mounting groove, described holder is installed in mounting groove, and coordinated with installation cell wall by pivot, one end of described holder is provided with installing hole, and this Compress Spring one end is positioned at installing hole, and pushes up at the bottom of the other end and mounting groove and press.
Described holder comprises a bare terminal end, and this bare terminal end is provided with a half slot, and this half slot one end radius reduces gradually, when two bare terminal ends close up formation clamp position, two halves circular groove forms a circular hole, and this circular hole one end reduces gradually, and described endoporus is communicated with this circular hole.
The invention has the beneficial effects as follows: this structure comprises cylinder body, be provided with the piston rod of hollow in cylinder body and be positioned at the piston in piston rod stage casing, and piston rod be provided with can the elastic locating mechanism of limited piston position, the stroke of cylinder can be divided into two stages carry out by said structure, add and clamp by batch mouth the screw stretched out and directly put into screw and locate this one-phase, thus this device can also realize beating of screw, and directly can load screw to the screw be positioned at below workpiece, avoid because common automatic screw is criticized when directly screw being squeezed into screw, because of gravity, screw is dropped out, and avoid bottom and the screw surrounding workpiece surface contact of batch mouth, thus scratch the shortcoming of surface of the work.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is overview of the present invention;
Fig. 2 is explosive view of the present invention;
Fig. 3 is the overview of fixed block;
Fig. 4 is the sectional view of batch mouth main body;
Fig. 5 is the three-dimensional view that batch mouth is stretched out in the end of screwdriver bar;
Fig. 6 is the internal structure generalized section of cylinder body, piston and piston rod.
Detailed description of the invention
Referring to figs. 1 through Fig. 5, the invention discloses a kind of telescopic feed mechanism, comprise cylinder body, be provided with the piston rod 1 of hollow in cylinder body and be positioned at the piston 2 in piston rod 1 stage casing, and piston rod 1 is provided with the elastic locating mechanism that can limit piston 2 position, two ends and the piston rod 1 of cylinder body are sealed and matched, and the end of this piston rod 1 is connected with batch mouth, criticize mouth and comprise batch mouth main body 3 and holder 4, have in batch mouth main body 3 be provided with respectively with the endoporus 5 that piston rod 1 is communicated with and feed pipe is communicated with, the screwdriver bar 6 be arranged in piston rod 1 can stretch out batch mouth main body 3 by endoporus 5, and screw also enters endoporus 5 by feed pipe and is ejected by screwdriver bar 6, holder 4 is hubbed at batch mouth main body 3 both sides, the flexible member (not shown) that can make holder 4 pinching screw is provided with between this holder 4 and batch mouth main body 3, in this example, flexible member is Compress Spring, described cylinder body is divided into the first air chamber 7 and the second air chamber 8 by piston 2.
As shown in the figure, concrete, elastic locating mechanism comprises the first spring 9 and the second spring 10 be arranged on piston rod 1, first spring 9 and the second spring 10 lay respectively at the both sides of this piston 2, and this first spring 9 is arranged in described first air chamber 7, this second spring 10 is arranged in described second air chamber 8.
Cylinder body comprises cylinder main body 11, drive end bearing bracket 12 and rear end cap 13, and described piston rod 1 seals with drive end bearing bracket 12 and rear end cap 13, makes cylinder main body 11, drive end bearing bracket 12 and rear end cap 13 be easy to process and assemble by said structure.
As shown in the figure, in this example, the concrete structure of piston 2 is, in order to easy to process and guarantee are assembled and precision, piston 2 comprises a sleeve pipe 14 fixing with piston rod 1, sleeve pipe 14 is provided with between two spacing rings 15, two spacing ring 15 and forms a cannelure, and cannelure is built with the sealing ring (not shown) be sealed and matched with inboard wall of cylinder block, the top, one end of described first spring 9 is pressed on drive end bearing bracket 12, and other end top is pressed on corresponding spacing ring 15; The top, one end of described second spring 10 is pressed on rear end cap 13, and other end top is pressed on corresponding spacing ring 15.
As shown in the figure, in order to avoid producing relative rotation between piston rod 1 and cylinder body, thus affect the location of screw and be screwed into, cylinder body is provided with guide pad 16, guide pad 16 is provided with gathering sill 17, the gib block 18 be slidably matched with gathering sill 17 is provided with in gathering sill 17, gib block 18 is provided with fixed block 19, this fixed block 19 is provided with pilot hole 20, described piston rod 1 is arranged in pilot hole 20, and pilot hole 20 inwall is provided with locating convex block 21, piston rod 1 outer wall is provided with the groove coordinated with this locating convex block 21, thus when between piston rod 1 and cylinder body during relative sliding, by projection fit, piston rod 1 being connected with guide pad 16 and gib block 18 is a mass motion, but gib block 18 is guided by gathering sill 17, also be synchronized with in gathering sill 17 and slide, and can not rotate in gathering sill 17 by gathering sill 17 restriction, thus limit relatively rotating between piston rod 1 and cylinder body.
As shown in the figure, the concrete structure that holder 4 is installed in batch mouth main body 3 is, criticize mouth main body 3 both sides and be provided with mounting groove, described holder 4 is installed in mounting groove, and coordinated with installation cell wall by pivot, one end of described holder 4 is provided with installing hole, and this Compress Spring one end is positioned at installing hole, and push up at the bottom of the other end and mounting groove and press, can be stablized by said structure holder 4 is installed in batch mouth main body 3, the elastic force top pressure holder 4 of Compress Spring and the upper end of batch mouth main body 3 pivoting point, thus the bare terminal end of holder 4 lower end can remain closed configuration and clamp screws.The concrete structure of its end is: holder 4 comprises a bare terminal end, this bare terminal end is provided with a half slot, this half slot one end radius reduces the (end segments of half slot gradually, its radius of part the closer to batch face, gonys is less), when half slot two bare terminal end closes up formation clamp position, two halves circular groove forms a circular hole, and this circular hole one end radius reduces the (end segments of circular hole gradually, its radius of part the closer to batch face, gonys is less), thus the nut of screw can be blocked, prevent screw from automatically skidding off, described endoporus 5 is communicated with this circular hole, pass through said structure, screw can slip into circular hole from endoporus 5 smoothly, and when screwdriver bar 6 ejects screw, screw can be made to eject smoothly, and in screw position fixing process, bare terminal end can give screw certain chucking power.
The operation principle of mechanism is as follows: in original state, second air chamber 8 is inflated, the elastic force of the second spring 10 adds that the pressure of air pressure overcomes the elastic force of the first spring 9 and compresses the first spring 9 to precalculated position (change of this position can be determined by the wire diameter of regulating spring), this precalculated position is the position (bottom of the first air chamber 7 is the one end near batch mouth) bottom the first air chamber 7, now screwdriver bar 6 shrinks in batch mouth, screw slips in the endoporus 5 criticized in mouth by feed pipe through endoporus 5, now screw does not stretch out from circular hole, and screwdriver bar 6 end is positioned at the nut top of screw,
Then the second air chamber 8 is vented, now piston 2 move to roughly cylinder middle section position time, first spring 9 power and the second spring 10 power reach and balance (certainly, this position also can be changed by the wire diameter adjusting the first spring 9 and the second spring 10 respectively), now piston rod 1 shrinks relative to cylinder body, thus drive batch mouth and screw move, but screwdriver bar 6 is motionless, thus, screw is ejected a part by screwdriver bar 6 from circular hole, and ensure that screw has at least nut portion to stay in batch mouth, after piston rod 1 is static bare terminal end still clamp screws do not drop out, now screw can be aimed at screw and locate by user, and in this position fixing process, the bottom of criticizing mouth (is criticized mouth and is comprised batch mouth main body 3 and holder 4, its bottom is also the bottom of holder 4 end) surface of the work can not be encountered, and common screwdriver does not have this process, thus when locating, directly align with the screw on workpiece with batch bottom of mouth, the bottom of thus criticizing mouth is difficult to not encounter screw surrounding workpiece surface, thus scuffing surface of the work,
Behind location, screwdriver bar 6 is rotated by the drive of pneumatic screwdriver 22, screw is screwed into, first air chamber 7 passes into compressed air simultaneously, the elastic force of the first spring 9 adds that the pressure of air pressure overcomes the elastic force of the second spring 10 and compresses the second spring 10 to precalculated position (change of this position can be determined by the wire diameter of regulating spring), this position is the position (bottom of the second air chamber 8 is the one end near pneumatic screwdriver 22) bottom the second air chamber 8, now piston rod 1 continues to shrink relative to cylinder body, thus drive batch mouth and screw move, but screwdriver bar 6 does not stretch, thus, screw is screwed in screw by ejecting completely from circular hole by screwdriver bar 6.
Said process clamps by batch mouth the screw stretched out and directly puts into screw and locate, thus this device can also realize beating of screw, and directly can load screw to the screw be positioned at below workpiece, avoid, because common automatic screw is criticized when directly screw being squeezed into screw, because of gravity, screw being dropped out.
Above to the telescopic feed mechanism of one that the embodiment of the present invention provides, be described in detail, apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (6)
1. telescopic feed mechanism, it is characterized in that: comprise cylinder body, the piston rod being provided with hollow in cylinder body and the piston be arranged on piston rod, and piston rod is provided with the elastic locating mechanism that can limit piston position, the two ends of cylinder body coordinate with piston rod packing, and the end of this piston rod is connected with batch mouth, criticize mouth and comprise batch mouth main body and holder, have in batch mouth main body to be provided with and be communicated with piston rod respectively and endoporus that feed pipe is communicated with, holder is hubbed at batch mouth main body both sides, the flexible member that can make holder pinching screw is provided with between this holder and batch mouth main body, described cylinder body is divided into the first air chamber and the second air chamber by piston, described cylinder body is provided with guide pad, guide pad is provided with gathering sill, the gib block be slidably matched with gathering sill is provided with in gathering sill, gib block is provided with fixed block, this fixed block is provided with pilot hole, described piston rod is arranged in pilot hole, and pilot hole inwall is provided with locating convex block, piston rod outer wall is provided with the groove coordinated with this locating convex block.
2. telescopic feed mechanism according to claim 1, it is characterized in that: described elastic locating mechanism comprises and is arranged at the first spring on piston rod and the second spring, first spring and the second spring lay respectively at the both sides of this piston, and this first spring is arranged in described first air chamber, this second spring is arranged in described second air chamber.
3. telescopic feed mechanism according to claim 2, is characterized in that: described cylinder body comprises cylinder main body, drive end bearing bracket and rear end cap, and described piston rod and drive end bearing bracket and rear end cap seal.
4. telescopic feed mechanism according to claim 3, it is characterized in that: described piston comprises a sleeve pipe fixing with piston rod, sleeve pipe is provided with two spacing rings, the sealing ring be sealed and matched with inboard wall of cylinder block is provided with between two spacing rings, the top, one end of described first spring is pressed on drive end bearing bracket, and other end top is pressed on corresponding spacing ring; The top, one end of described second spring is pressed on rear end cap, and other end top is pressed on corresponding spacing ring.
5. telescopic feed mechanism according to claim 1, it is characterized in that: described flexible member is Compress Spring, described batch of mouth main body both sides are provided with mounting groove, described holder is installed in mounting groove, and coordinated with installation cell wall by pivot, one end of described holder is provided with installing hole, and this Compress Spring one end is positioned at installing hole, and pushes up at the bottom of the other end and mounting groove and press.
6. telescopic feed mechanism according to claim 1, it is characterized in that: described holder comprises a bare terminal end, this bare terminal end is provided with a half slot, this half slot one end radius reduces gradually, when two bare terminal ends close up formation clamp position, two halves circular groove forms a circular hole, and this circular hole one end radius reduces gradually, and described endoporus is communicated with this circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310160789.2A CN103264369B (en) | 2013-05-03 | 2013-05-03 | Retractable feeding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310160789.2A CN103264369B (en) | 2013-05-03 | 2013-05-03 | Retractable feeding mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103264369A CN103264369A (en) | 2013-08-28 |
| CN103264369B true CN103264369B (en) | 2015-03-04 |
Family
ID=49008055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310160789.2A Expired - Fee Related CN103264369B (en) | 2013-05-03 | 2013-05-03 | Retractable feeding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103264369B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2071114U (en) * | 1990-09-01 | 1991-02-13 | 添记贸易行股份有限公司 | Screw automatic feeding device |
| US5186084A (en) * | 1989-08-25 | 1993-02-16 | Katsuyuki Totsu | Automatic screw driver and a method for controlling the same |
| GB2278078A (en) * | 1993-05-17 | 1994-11-23 | Max Co Ltd | Screw fastening machine |
| CN1593852A (en) * | 2003-08-21 | 2005-03-16 | 布莱克和戴克公司 | Automatic screwfeeder |
| CN2813218Y (en) * | 2005-06-10 | 2006-09-06 | 杨群根 | Automatic feeding nail electric screwdriver |
| CN203282418U (en) * | 2013-05-03 | 2013-11-13 | 中山市斯艺五金机电制造有限公司 | Telescopic feeding mechanism |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10315068A (en) * | 1997-05-13 | 1998-12-02 | Meisho Kk | Automatic screwing device |
| IT1395788B1 (en) * | 2009-09-16 | 2012-10-19 | Fiam Utensili Pneumatici | DEVICE FOR THE APPLICATION OF INSERTS. |
-
2013
- 2013-05-03 CN CN201310160789.2A patent/CN103264369B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5186084A (en) * | 1989-08-25 | 1993-02-16 | Katsuyuki Totsu | Automatic screw driver and a method for controlling the same |
| CN2071114U (en) * | 1990-09-01 | 1991-02-13 | 添记贸易行股份有限公司 | Screw automatic feeding device |
| GB2278078A (en) * | 1993-05-17 | 1994-11-23 | Max Co Ltd | Screw fastening machine |
| CN1593852A (en) * | 2003-08-21 | 2005-03-16 | 布莱克和戴克公司 | Automatic screwfeeder |
| CN2813218Y (en) * | 2005-06-10 | 2006-09-06 | 杨群根 | Automatic feeding nail electric screwdriver |
| CN203282418U (en) * | 2013-05-03 | 2013-11-13 | 中山市斯艺五金机电制造有限公司 | Telescopic feeding mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103264369A (en) | 2013-08-28 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20160127 Address after: 528400 Guangdong province Zhongshan Torch Development Zone East Road No. 2 Yong Qi Guan God Patentee after: ZHONGSHAN KAIGE AUTOMATION EQUIPMENT CO., LTD. Address before: 528400 Guangdong province Zhongshan Torch Development Zone East Road No. 2 Yong Qi Guan God Patentee before: Zhongshan Siyi Hardware Electromechanical Manufacturing Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170425 Address after: 528400 Guangdong province Zhongshan Torch Development Zone God Chung Road No. 2 A District Qi Guan Patentee after: Zhongshan Rui Rui Hardware Products Co., Ltd. Address before: 528400 Guangdong province Zhongshan Torch Development Zone East Road No. 2 Yong Qi Guan God Patentee before: ZHONGSHAN KAIGE AUTOMATION EQUIPMENT CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20190503 |