CN2220691Y - Connection hydraulic plicers for electrical machinery bolt - Google Patents
Connection hydraulic plicers for electrical machinery bolt Download PDFInfo
- Publication number
- CN2220691Y CN2220691Y CN 94243671 CN94243671U CN2220691Y CN 2220691 Y CN2220691 Y CN 2220691Y CN 94243671 CN94243671 CN 94243671 CN 94243671 U CN94243671 U CN 94243671U CN 2220691 Y CN2220691 Y CN 2220691Y
- Authority
- CN
- China
- Prior art keywords
- pincers
- seat
- bolt
- contained
- pressure
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a pair of ideal connection hydraulic pincers for electrical machinery bolts. The utility model is characterized in that an electromagnetic relief valve is used as an unloading circuit, an oil cylinder is controlled by a two-position four-way electromagnetic valve, multiple sleeve oil cylinders in parallel connection is connected with an oil path, a pressure seat is composed of an upper and a lower pressure seats, a clamp surface presents the shape of a round hold, the pressure head and the pressure surface form a spherical shape, and the head of the pincers is provided with a lever mechanism to adjust the clamping bolt of the upper pressure seat. The multiple sleeve oil cylinders of the hydraulic pincers can be provided with multiple heads which can work individually or simultaneously, the compression joint segment of the bolt after pressed and connected is still in shape of cylinder except a pit. The utility model has the advantages of good assembly performance of the bolt after pressed and connected, high work efficiency, convenient operation, etc.
Description
The utility model belongs to the portable power tools technical field, is a kind of motor bolt wiring hydraulic tongs.
The existing hydraulic tongs that is used for motor bolt wiring cold weld, owing to be subjected to the restriction of its hydraulic control system design, promptly adopt 3-position 4-way solenoid directional control valve control oil cylinder, the oil circuit off-load is to realize by the solenoid directional control valve with meta unloading function, therefore this kind hydraulic tongs can only be established binding clip of a cover oil cylinder band, inefficiency; And the pressure head pressure surface of this kind hydraulic tongs is the plane that has groove, and wedge card face is the V-shape inclined-plane, and the crimp segment of the bolt after the crimping is polygon, out-of-shape, and assembly performance is bad.
The purpose of this utility model is a kind of a plurality of binding clips of many cover oil cylinder bands, high efficiency of establishing of design; The motor bolt wiring hydraulic tongs that the crimp segment regular shape assembly performance of bolt is good after the crimping.
For reaching above-mentioned purpose, the main technical schemes that the utility model is taked is improved existing hydraulic tongs, electromagnetic relief valve is set as relief circuit in hydraulic system, adopts two-position four-way solenoid directional control valve control oil cylinder, have at least a cover oil cylinder to link to each other with oil circuit.Partly adopt the card face to be the upper and lower wedge of circle hole shape at binding clip, the pressure surface of pressure head is spherical in shape, and an end of pressure head is contained on the piston rod of operating cylinder.And leverage is set, and upper pressure seat is contained in an end of lever, and two semicircle hole clippings of upper and lower wedge are staggered relatively, have the hole with the perpendicular direction of hole clipping axis, and down pressing seat is contained on the pincers seat.The middle part of lever is contained on the pincers seat by bearing pin, is provided with torsion spring between lever and the pincers seat, and the other end of lever is equipped with roller, and roller is located at the top of operating cylinder piston rod and pressure head.Pincers are being provided with the switch that is used for controlling solenoid directional control valve, electromagnetic relief valve, thereby constitute a kind of motor bolt wiring hydraulic tongs.
This motor bolt of the utility model wiring hydraulic tongs is owing to adopt electromagnetic relief valve as relief circuit in hydraulic system, and adopt the two-position four-way solenoid directional control valve to control oil cylinder, therefore can parallel connection establish a plurality of binding clips of many cover oil cylinder bands, binding clip can be simultaneously or single use and mutually noninterfere, thereby can increase work efficiency greatly; Owing to adopt the advance and retreat of two-position four-way solenoid directional control valve control oil cylinder, only need an electromagnet to realize, therefore only need pincers on establish a switch, utilize the advancing or move back of break-make control oil cylinder of switch, easy to operate; Because clamp head part divides the card face of wedge to be circle hole shape, the pressure surface of pressure head is spherical in shape, and thereby the leverage that is provided with presses down upper pressure seat can advance with the piston rod of operating cylinder the time chucking and goes up down pressing seat and press workpiece bolt in the hole, therefore the crimp segment of bolt all the other positions except that the hole that pressure head extrudes are still cylindrical after the crimping, can guarantee that the assembly performance of bolt is good.Compare with existing bolt wiring hydraulic tongs, have high efficiency, the bolt after the crimping still can guarantee assembly performance is good, and the is easy to operate remarkable advantage of Denging.
Reach the specific structural features that example further specifies the utility model motor connection bolt hydraulic tongs in conjunction with the accompanying drawings.
Fig. 1 represents the front view of the utility model motor bolt wiring hydraulic tongs.
Fig. 2 represents the A-A partial sectional view of the utility model motor bolt wiring hydraulic tongs.
Fig. 3 represents 1 local enlarged diagram of the utility model motor bolt wiring hydraulic tongs.
Referring to Fig. 1, Fig. 2, the utility model motor bolt wiring hydraulic tongs is made up of motor 1, oil pump 2, fuel tank 16, dolly 17, electric control system 18, hydraulic system I, binding clip part II.Motor 1, oil pump 2 are contained on the support plate at dolly 17 middle parts, and electric machine main shaft links to each other with the oil pump main shaft by shaft coupling.Electric control system 18 is contained on the support plate on dolly 17 tops.Hydraulic system I comprises: electromagnetic relief valve 3, solenoid directional control valve 4, pressurizing cylinder 6, operating cylinder 5.Electromagnetic relief valve 3 is connected on the oil circuit as relief circuit.Operating cylinder 5 adopts single-acting spring reset cylinder, pressurizing cylinder 6, operating cylinder 5 are connected in series and form a cover oil cylinder, solenoid directional control valve 4 adopts the two-position four-way solenoid directional control valves, and two joints of solenoid directional control valve 4 link to each other with two chambeies of pressurizing cylinder 6 respectively, and two cover oil cylinders are mutual and be connected on the oil circuit.Referring to Fig. 1, Fig. 3, binding clip part II is made up of 15 leverage, upper pressure seat 10, pressure head 11, down pressing seat 12, pincers seat 13, roller 14, pincers.Leverage comprises: lever 9, bearing pin 8, torsion spring 7.Down pressing seat 12 is contained on the pincers seat 13, and upper pressure seat 10 is contained in an end of lever 9, open on the upper and lower wedge to be used for the knock off semicircle hole clipping of part bolt of card staggered relatively, have with hole clipping axis normal direction to be used for the hole that pressure head 11 passes through.The middle part of lever 9 is contained on the pincers seat 13 by bearing pin 8, and torsion spring 7 is contained on the bearing pin between lever 9 and the pincers 13.The other end of lever 9 is equipped with roller 14, and roller 14 is located at the piston rod and the pressure head top of operating cylinder 5.Pressure head 11 is spherical in shape, and an end is contained on the piston rod of operating cylinder 5, and the other end stretches on the upper and lower wedge in the hole with the hole clipping axis normal.Referring to Fig. 1: electromagnetic relief valve 3, pressurizing cylinder 6, solenoid directional control valve 4 are contained on the support plate at dolly 17 middle parts.Operating cylinder 5 is contained on the pincers seat 13.Pincers on the switch that is used for controlling solenoid directional control valve, electromagnetic relief valve is housed.Fuel tank 16 is contained on the support plate of dolly 17 bottoms.
Energized starter motor 1 during work, 2 work of driven by motor oil pump, the oil content of oil pump 2 outputs is that two-way enters electromagnetic relief valve 3 and solenoid directional control valve 4, and this moment, electromagnetic relief valve 3 was not charged, was in normal open state, and fluid flows back to fuel tank 16 through this.After treating that the workpiece bolt is put well, by pincers the switch on 15, solenoid directional control valve 4 charged commutations, electromagnetic relief valve 3 is charged simultaneously, close way to cycle oil, fluid enters pressurizing cylinder 6, enters operating cylinder 5 promotion piston rods by the unidirectional valve in the pressurizing cylinder and advances, push lever 9 one ends by roller 14 and upwarp, the lever other end drives upper pressure seat downwards the workpiece bolt is blocked.At this moment system pressure begins to raise, pressurizing cylinder 6 inner carriers move forward, the while closed check valve, pressurizing cylinder 6 beginning superchargings, after pressure increased, the piston rod of operating cylinder 5 moved on, and promoted pressure head 11 and pressed the wiring of workpiece bolt, cause bolt generation plastic deformation dress electric wire and bolt inwall in the bolt are compressed, crimping finishes.Unclamp pincers the switch on 15, the solenoid directional control valve dead electricity commutates, and the piston rod of operating cylinder 5 is return under the effect of spring and resetted, roller 14 falls, and lever 9 end that links to each other with upper pressure seat 10 under the effect of torsion spring 7 upwarps, and lifts on the drive upper pressure seat 10, unclamp bolt, whole crimping process finishes.
This bolt wiring of the utility model hydraulic tongs can be designed to a cover, two covers or overlap oil cylinder more, is with two or more binding clips respectively, and binding clip can use individually or simultaneously.
Claims (1)
1, a kind of motor bolt wiring hydraulic tongs, have motor, oil pump, fuel tank, dolly, electric control system, hydraulic system, binding clip, it is characterized in that on the oil circuit of hydraulic system, being provided with electromagnetic relief valve, be provided with the two-position four-way solenoid directional control valve, solenoid directional control valve two joints link to each other with two chambeies of pressurizing cylinder respectively, at least one cover oil cylinder is set links to each other with oil circuit; The wedge of binding clip part is last down pressing seat, the card face is circle hole shape, the pressure surface of pressure head is spherical in shape, one end of pressure head is contained on the piston rod of operating cylinder, and leverage is set, upper pressure seat is contained in an end of lever, two semicircle hole clippings of upper and lower wedge are staggered relatively, have the hole with hole clipping axis normal direction, down pressing seat is contained on the pincers seat, and the lever middle part is contained on the pincers seat by bearing pin, between lever and the pincers seat torsion spring is housed, the other end of lever is equipped with roller, and roller is located at the piston rod of operating cylinder and pressure head top, pincers on switch is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94243671 CN2220691Y (en) | 1994-10-14 | 1994-10-14 | Connection hydraulic plicers for electrical machinery bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94243671 CN2220691Y (en) | 1994-10-14 | 1994-10-14 | Connection hydraulic plicers for electrical machinery bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2220691Y true CN2220691Y (en) | 1996-02-21 |
Family
ID=33849963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94243671 Expired - Fee Related CN2220691Y (en) | 1994-10-14 | 1994-10-14 | Connection hydraulic plicers for electrical machinery bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2220691Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594902A (en) * | 2013-10-18 | 2014-02-19 | 国家电网公司 | Electric hydraulic working table |
-
1994
- 1994-10-14 CN CN 94243671 patent/CN2220691Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594902A (en) * | 2013-10-18 | 2014-02-19 | 国家电网公司 | Electric hydraulic working table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |