CN106583580B - A kind of multiple site punching transports crossbeam fast clamp socket - Google Patents
A kind of multiple site punching transports crossbeam fast clamp socket Download PDFInfo
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- CN106583580B CN106583580B CN201611123604.0A CN201611123604A CN106583580B CN 106583580 B CN106583580 B CN 106583580B CN 201611123604 A CN201611123604 A CN 201611123604A CN 106583580 B CN106583580 B CN 106583580B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
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- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
Description
技术领域technical field
本发明涉及一种多工位冲压系统,尤其是一种多工位冲压搬送横梁用快速夹持插座。The invention relates to a multi-station stamping system, in particular to a quick clamping socket for a multi-station stamping transport beam.
背景技术Background technique
伴随现代工业制造水平智能化、自动化、高速化的发展趋势,多工位冲压技术具有效率高,速度快的特点,越来越多地应用在传统金属冲压行业。与之对应的,工业制造业对于产品搬运系统的需求越来越多,越来越高,为此对应不同产品的需求需要安装不同的固定装置,并且在高速夹持运动中,应避免移位、松动的问题发生。现有的多工位冲压横梁用搬运系统的固定方式,一种是将搬运系统通过铁板和定位销安装在搬送横梁的上面,使用这种固定方式很笨重且容易引起位移;另一种是通过搬送横梁背部的把手,将搬运系统锁固在搬送横梁的前面,使用这种固定方式体积大,重量重,使用不方便,且不容易更换。With the development trend of modern industrial manufacturing level of intelligence, automation and high speed, multi-station stamping technology has the characteristics of high efficiency and fast speed, and is more and more used in the traditional metal stamping industry. Correspondingly, the industrial manufacturing industry has more and more demands on the product handling system. For this reason, different fixing devices need to be installed to meet the needs of different products, and in the high-speed clamping movement, displacement should be avoided. , The problem of looseness occurs. The existing fixing methods for the handling system for multi-station stamping beams, one is to install the handling system on the top of the moving beams through iron plates and positioning pins, this fixing method is very heavy and easy to cause displacement; the other is Through the handle on the back of the transport beam, the transport system is locked on the front of the transport beam. Using this fixing method is bulky, heavy, inconvenient to use, and not easy to replace.
发明内容Contents of the invention
本发明的目的是针对工作过程中现有技术中存在体积大、容易产生位移的缺陷,而提供一种工位冲压搬送横梁用快速夹持插座。The object of the present invention is to provide a fast clamping socket for the punching and transporting beam of the station in view of the defects of large volume and easy displacement in the prior art during the working process.
本发明的技术方案为:一种多工位冲压搬送横梁用快速夹持插座,包括正方体的插座本体、连接杆和锁紧把手,所述插座本体的内部设置有圆形孔,所述圆形孔的前端设置有用于导向的方形槽,所述连接杆穿过所述方形槽设置在所述插座本体的内部;所述插座本体的上表面中间设置有凹槽,所述凹槽的内部设置有压块,所述压块的底部设置有与所述连接杆直径配合的圆弧形凹槽,所述压块的上部设置有T形槽;所述插座本体的尾端一侧设置有定位孔,所述连接杆的尾部设置有圆形凹槽,所述定位孔与所述圆形凹槽通过定位销连接;所述锁紧把手的底部为圆柱轴,所述圆柱轴的底部设置有与所述压块配合的圆形柱台。The technical solution of the present invention is: a quick-clamping socket for multi-station stamping and transporting beams, comprising a cube socket body, a connecting rod and a locking handle, a circular hole is arranged inside the socket body, and the circular hole The front end of the hole is provided with a square groove for guiding, and the connecting rod is arranged inside the socket body through the square groove; a groove is arranged in the middle of the upper surface of the socket body, and the inside of the groove is arranged There is a pressing block, the bottom of the pressing block is provided with an arc-shaped groove matching the diameter of the connecting rod, the upper part of the pressing block is provided with a T-shaped groove; the tail end of the socket body is provided with a positioning hole, the tail of the connecting rod is provided with a circular groove, and the positioning hole is connected with the circular groove through a positioning pin; the bottom of the locking handle is a cylindrical shaft, and the bottom of the cylindrical shaft is provided with A circular column platform matched with the pressing block.
更进一步的,所述插座本体的上部设置有用于固定所述锁紧把手的固定板,所述固定板使用螺栓固定在所述插座本体的上部。Furthermore, the upper part of the socket body is provided with a fixing plate for fixing the locking handle, and the fixing plate is fixed on the upper part of the socket body with bolts.
更进一步的,所述固定板的上部设置有固定块,所述固定块包括固定块一和固定块二,所述固定块一的上部使用螺栓与所述固定板连接,所述固定块二的侧面使用螺栓与所述固定块一连接。Further, the upper part of the fixed plate is provided with a fixed block, and the fixed block includes a fixed block one and a fixed block two, and the upper part of the fixed block one is connected with the fixed plate using bolts, and the fixed block two The sides are connected with the fixed block by bolts.
更进一步的,所述插座本体的一侧设置有安装附属管件的固定块三,所述固定块三的一侧通过螺栓与所述插座本体连接。Furthermore, one side of the socket body is provided with a fixing block three for installing an auxiliary pipe fitting, and one side of the fixing block three is connected to the socket body through bolts.
更进一步的,所述锁紧把手的上部设置有用于调整角度的手把销。Furthermore, the upper part of the locking handle is provided with a handle pin for adjusting the angle.
更进一步的,所述插座本体的底部设置有保证重复定位的定位销孔。Furthermore, the bottom of the socket body is provided with positioning pin holes to ensure repeated positioning.
更进一步的,所述插座本体的底部设置有螺栓定位孔。Furthermore, the bottom of the socket body is provided with bolt positioning holes.
更进一步的,所述压块为S4C钢材。Furthermore, the briquetting block is made of S4C steel.
更进一步的,所述插座本体为钢材或铝合金,所述连接杆为S45C钢材。Furthermore, the socket body is made of steel or aluminum alloy, and the connecting rod is made of S45C steel.
本发明的有益效果是:所述插座本体的上表面中间设置有凹槽,所述凹槽的内部设置有压块,所述压块的底部设置有与所述连接杆直径配合的圆弧形凹槽,所述压块的上部设置有T形槽,能够防止使用过程中连接杆的转动;所述插座本体的尾端一侧设置有定位孔,所述连接杆的尾部设置有圆形凹槽,所述定位孔与所述圆形凹槽通过定位销连接,防止连接杆的轴向转动;所述锁紧把手底部为圆柱轴,所述圆柱轴的底部设置有与所述压块配合的圆形柱台,能够快速的实现定位和插拔;所述插座本体的底部设置有保证重复定位的定位孔,具有安装拆卸方便,降低操作人员的劳动强度的特点。The beneficial effects of the present invention are: a groove is arranged in the middle of the upper surface of the socket body, a pressing block is arranged inside the groove, and a circular arc shape matching the diameter of the connecting rod is arranged at the bottom of the pressing block. Groove, the upper part of the pressure block is provided with a T-shaped groove, which can prevent the rotation of the connecting rod during use; the tail end side of the socket body is provided with a positioning hole, and the tail of the connecting rod is provided with a circular concave The positioning hole and the circular groove are connected by a positioning pin to prevent the axial rotation of the connecting rod; the bottom of the locking handle is a cylindrical shaft, and the bottom of the cylindrical shaft is provided with a The circular column base can quickly realize positioning and plugging; the bottom of the socket body is provided with a positioning hole to ensure repeated positioning, which is convenient for installation and disassembly, and reduces the labor intensity of the operator.
附图说明Description of drawings
图1是本发明多工位冲压搬送横梁用快速夹持插座的结构示意图。Fig. 1 is a structural schematic diagram of a quick clamping socket for a multi-station stamping transport beam of the present invention.
图2是本发明多工位冲压搬送横梁用快速夹持插座的结构示意图。Fig. 2 is a structural schematic diagram of the quick-clamping socket for the multi-station stamping and conveying beam of the present invention.
图3是本发明多工位冲压搬送横梁用快速夹持插座的插座本体的结构示意图。Fig. 3 is a schematic structural view of the socket body of the quick clamping socket for the multi-station stamping and transporting beam of the present invention.
图4是本发明多工位冲压搬送横梁用快速夹持插座的连接杆结构示意图。Fig. 4 is a schematic diagram of the structure of the connecting rod of the quick-clamp socket for the multi-station stamping and transport beam of the present invention.
图5是本发明多工位冲压搬送横梁用快速夹持插座的锁紧把手结构示意图。Fig. 5 is a structural schematic diagram of the locking handle of the quick clamping socket for the multi-station stamping and transporting beam of the present invention.
图6是本发明多工位冲压搬送横梁用快速夹持插座的结构示意图。Fig. 6 is a schematic structural view of the quick-clamping socket for the multi-station stamping and conveying beam of the present invention.
图中:1是插座本体、2是连接杆、3是锁紧把手、11是圆形孔、12是方形槽、13是凹槽、14是压块、15是圆弧形凹槽、16是T形槽、17是定位孔、18是固定板、19是固定块、20是定位销孔、21是圆形凹槽、22是螺栓定位孔、31是圆柱轴、32是圆形柱台、33是手把销、191是固定块一、192是固定块二、193是固定块三。In the figure: 1 is the socket body, 2 is the connecting rod, 3 is the locking handle, 11 is the circular hole, 12 is the square groove, 13 is the groove, 14 is the pressing block, 15 is the arc groove, 16 is the T-shaped slot, 17 is a positioning hole, 18 is a fixed plate, 19 is a fixed block, 20 is a positioning pin hole, 21 is a circular groove, 22 is a bolt positioning hole, 31 is a cylindrical shaft, 32 is a circular column base, 33, handle pin, 191, fixed block one, 192, fixed block two, 193, fixed block three.
具体实施方式Detailed ways
以下结合具体实施例对本发明作进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。The present invention will be described in further detail below in conjunction with specific examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
如图1、2、3、4、5所示,一种多工位冲压搬送横梁用快速夹持插座,包括正方体的插座本体1、连接杆2和锁紧把手3,所述插座本体1的内部设置有圆形孔11,所述圆形孔11的前端设置有用于导向的方形槽12,所述连接杆2穿过所述方形槽12设置在所述插座本体1的内部;所述插座本体1的上表面中间设置有凹槽13,所述凹槽13的内部设置有压块14,所述压块14的底部设置有与所述连接杆2直径配合的圆弧形凹槽15,所述压块14的上部设置有T形槽16;所述插座本体1的尾端一侧设置有定位孔17,所述连接杆2的尾部设置有圆形凹槽21,所述定位孔17与所述圆形凹槽21通过定位销连接;所述锁紧把手3的底部为圆柱轴31,所述圆柱轴31的底部设置有与所述压块14配合的圆形柱台32;所述插座本体1的上部设置有用于固定所述锁紧把手3的固定板18,所述固定板18使用螺栓固定在所述插座本体1的上部;所述固定板18的上部设置有固定块19,所述固定块包括固定块一191和固定块二192,所述固定块一191的上部使用螺栓与所述固定板18连接,所述固定块二192的侧面使用螺栓与所述固定块一191连接。所述插座本体1的一侧设置有安装附属管件的固定块三193,所述固定块三193的一侧通过螺栓与所述插座本体1连接。所述锁紧把手3的上部设置有用于调整角度的手把销33。所述插座本体1的底部设置有保证重复定位的定位销孔20;所述插座本体1的底部设置有螺栓定位孔22;所述压块14为S4C钢材;所述插座本体1为钢材或铝合金,所述连接杆2为S45C钢材。As shown in Figures 1, 2, 3, 4, and 5, a quick clamping socket for a multi-station stamping and transporting beam includes a cube socket body 1, a connecting rod 2 and a locking handle 3, the socket body 1 The inside is provided with a circular hole 11, and the front end of the circular hole 11 is provided with a square groove 12 for guiding, and the connecting rod 2 is arranged inside the socket body 1 through the square groove 12; the socket A groove 13 is arranged in the middle of the upper surface of the body 1, and a pressing block 14 is arranged inside the groove 13, and an arc-shaped groove 15 matching the diameter of the connecting rod 2 is arranged at the bottom of the pressing block 14, The top of the briquetting block 14 is provided with a T-shaped slot 16; the tail end side of the socket body 1 is provided with a positioning hole 17, and the tail of the connecting rod 2 is provided with a circular groove 21, and the positioning hole 17 It is connected with the circular groove 21 through a positioning pin; the bottom of the locking handle 3 is a cylindrical shaft 31, and the bottom of the cylindrical shaft 31 is provided with a circular post 32 that cooperates with the pressing block 14; The upper part of the socket body 1 is provided with a fixed plate 18 for fixing the locking handle 3, and the fixed plate 18 is fixed on the upper part of the socket body 1 with bolts; the upper part of the fixed plate 18 is provided with a fixed block 19 , the fixed block includes a fixed block one 191 and a fixed block two 192, the upper part of the fixed block one 191 is connected with the fixed plate 18 by bolts, and the side of the fixed block two 192 is connected with the fixed block one by bolts 191 connections. One side of the socket body 1 is provided with a fixing block three 193 for installing an auxiliary pipe fitting, and one side of the fixing block three 193 is connected to the socket body 1 by bolts. The upper part of the locking handle 3 is provided with a handle pin 33 for adjusting the angle. The bottom of the socket body 1 is provided with positioning pin holes 20 to ensure repeated positioning; the bottom of the socket body 1 is provided with bolt positioning holes 22; the pressure block 14 is made of S4C steel; the socket body 1 is made of steel or aluminum alloy, and the connecting rod 2 is made of S45C steel.
如图6所示,优选的,所述插座本体1的前端与所述方形槽12连接的位置为分体式结构,防止设备长时间使用过程中插座本体1的前端与所述方形槽12的摩擦造成的损伤,从而便于只更换插座本体1的前端,减少更换维修的成本,提高工作效率。As shown in Figure 6, preferably, the position where the front end of the socket body 1 is connected to the square groove 12 is a split structure to prevent friction between the front end of the socket body 1 and the square groove 12 during long-term use of the device The damage caused thereby facilitates only replacing the front end of the socket body 1, reduces the cost of replacement and maintenance, and improves work efficiency.
本发明所述插座本体1的上表面中间设置有凹槽13,所述凹槽13的内部设置有压块14,所述压块14的底部设置有与所述连接杆2直径配合的圆弧形凹槽21,所述压块14的上部设置有T形槽16,能够防止使用过程中连接杆的转动;所述插座本体1的尾端一侧设置有定位孔17,所述连接杆2的尾部设置有圆形凹槽21,所述定位孔17与所述圆形凹槽21通过定位销连接,防止连接杆的轴向转动;所述锁紧把手3底部为圆柱轴31,所述圆柱轴31的底部设置有与所述压块4配合的圆形柱台32,能够快速实现锁紧把手3的定位和插拔;所述插座本体1的底部设置有防止反复定位的定位销孔20,安装拆卸方便,降低操作人员的劳动强度。A groove 13 is arranged in the middle of the upper surface of the socket body 1 of the present invention, and a pressing block 14 is arranged inside the groove 13, and a circular arc matching the diameter of the connecting rod 2 is arranged at the bottom of the pressing block 14 T-shaped groove 21, the upper part of the pressure block 14 is provided with a T-shaped groove 16, which can prevent the rotation of the connecting rod during use; the tail end side of the socket body 1 is provided with a positioning hole 17, and the connecting rod 2 The tail of the tail is provided with a circular groove 21, and the positioning hole 17 is connected with the circular groove 21 through a positioning pin to prevent the axial rotation of the connecting rod; the bottom of the locking handle 3 is a cylindrical shaft 31, and the The bottom of the cylindrical shaft 31 is provided with a circular post 32 that cooperates with the pressure block 4, which can quickly realize the positioning and insertion of the locking handle 3; the bottom of the socket body 1 is provided with a positioning pin hole to prevent repeated positioning 20. It is easy to install and disassemble, reducing the labor intensity of operators.
使用时,首先将插座本体1通过底部设置的定位销孔20及螺丝定位孔22,安装在搬送横梁上,设置的定位销孔20保证在更换维修时二次装配的位置精度;其次,将附属管件安装在固定块三193,然后将锁紧把手3穿过固定板18,嵌入到压块4中,再装入插座本体1中,并使用螺栓紧固;再然后,将连接杆2插入到插座本体1中,并在插座本体1尾端一侧设置的定位孔17旋入定位销;最后,锁紧把手3将压块4压紧在连接杆2上,完成锁紧操作。When in use, at first the socket body 1 is installed on the transport beam through the positioning pin hole 20 and the screw positioning hole 22 provided at the bottom, and the positioning pin hole 20 provided ensures the position accuracy of the secondary assembly during replacement and maintenance; secondly, the accessory The pipe fittings are installed on the fixed block 3 193, and then the locking handle 3 is passed through the fixed plate 18, embedded into the pressing block 4, then put into the socket body 1, and fastened with bolts; then, insert the connecting rod 2 into the In the socket body 1, the positioning hole 17 provided on the tail end side of the socket body 1 is screwed into the positioning pin; finally, the locking handle 3 presses the pressing block 4 on the connecting rod 2 to complete the locking operation.
以上所述仅是本发明的优选实施方式,应当指出的是,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the protection scope of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611123604.0A CN106583580B (en) | 2016-12-08 | 2016-12-08 | A kind of multiple site punching transports crossbeam fast clamp socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611123604.0A CN106583580B (en) | 2016-12-08 | 2016-12-08 | A kind of multiple site punching transports crossbeam fast clamp socket |
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| Publication Number | Publication Date |
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| CN106583580A CN106583580A (en) | 2017-04-26 |
| CN106583580B true CN106583580B (en) | 2018-05-15 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB764985A (en) * | 1954-06-02 | 1957-01-02 | Llewellyn Alwin Hautau | A mechanical loader and unloader for production machines |
| CN201124208Y (en) * | 2007-11-23 | 2008-10-01 | 江苏金方圆数控机床有限公司 | Clamp for punch |
| CN201940496U (en) * | 2010-12-09 | 2011-08-24 | 江苏金方圆数控机床有限公司 | Heavy-load hydraulic clamp |
| CN204643148U (en) * | 2015-04-23 | 2015-09-16 | 苏州博众精工科技有限公司 | A kind of product carrying mechanism |
| CN204643147U (en) * | 2015-04-23 | 2015-09-16 | 苏州博众精工科技有限公司 | A kind of finished product carrying mechanism |
| CN206241114U (en) * | 2016-12-08 | 2017-06-13 | 大石机械(天津)有限公司 | A kind of multistation terminal-collecting machine rapid fixing |
-
2016
- 2016-12-08 CN CN201611123604.0A patent/CN106583580B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB764985A (en) * | 1954-06-02 | 1957-01-02 | Llewellyn Alwin Hautau | A mechanical loader and unloader for production machines |
| CN201124208Y (en) * | 2007-11-23 | 2008-10-01 | 江苏金方圆数控机床有限公司 | Clamp for punch |
| CN201940496U (en) * | 2010-12-09 | 2011-08-24 | 江苏金方圆数控机床有限公司 | Heavy-load hydraulic clamp |
| CN204643148U (en) * | 2015-04-23 | 2015-09-16 | 苏州博众精工科技有限公司 | A kind of product carrying mechanism |
| CN204643147U (en) * | 2015-04-23 | 2015-09-16 | 苏州博众精工科技有限公司 | A kind of finished product carrying mechanism |
| CN206241114U (en) * | 2016-12-08 | 2017-06-13 | 大石机械(天津)有限公司 | A kind of multistation terminal-collecting machine rapid fixing |
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| CN106583580A (en) | 2017-04-26 |
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Granted publication date: 20180515 |