CN201579713U - Clamping device - Google Patents
Clamping device Download PDFInfo
- Publication number
- CN201579713U CN201579713U CN2009202709483U CN200920270948U CN201579713U CN 201579713 U CN201579713 U CN 201579713U CN 2009202709483 U CN2009202709483 U CN 2009202709483U CN 200920270948 U CN200920270948 U CN 200920270948U CN 201579713 U CN201579713 U CN 201579713U
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- China
- Prior art keywords
- clamping device
- alignment pin
- hydraulic drive
- mechanical
- way cylinder
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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.)
- Expired - Fee Related
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Abstract
The utility model provides a clamping device, which comprises a mechanical portion and a hydraulic transmission portion. The mechanical portion comprises a hand-operated handle, a connecting plate, a base, a fixing element and a press lever, wherein the fixing element fixes the mechanical portion onto a workbench, and one end of the press lever is fixedly connected with a single-action cylinder. The hydraulic transmission portion provides power for the single-action cylinder, the middle portion of the hand-operated handle is connected with one end of the connecting plate through a first positioning pin, the lower portion of the hand-operated handle is connected with the base through a third positioning pin, the other end of the connecting plate is connected with the middle portion of the press lever through a second positioning pin, the other end of the press level is connected with the base through a fourth positioning pin, when the first positioning pin, the second positioning pin and the third positioning pin are located on the same straight line, the clamping device is located at a mechanical dead point, and then, a center line of the single-action cylinder is parallel to the straight line and perpendicular to a top surface of the workbench. The clamping device is convenient in use and simple in operation, effectively reduces labor intensity of operators, and increases labor productivity and product quality.
Description
Technical field
The utility model relates to clamp mechanism, especially, and the clamping device when relating to a kind of widget assembling that is used for railway freight-car.
Background technology
The big multi-part of railway freight-car is to be welded by parts such as sheet materials; because of sheet material behind die mould; discharge the generation distortion through regular meeting's stress; in addition; part transports from the manufacturing shop to the composing room and interacts when stacking and also can cause distortion, and the part of distortion can bring very big difficulty to assembling procedure.
In existing assembling procedure, part is placed on when assembling on the workbench, part need be clamped on the fetalism.In order to overcome the distortion of part, the blue clamping clip of operator's card commonly used flattens the distortion of part.Referring to Fig. 1, show the working state schematic representation of the blue clamping clip of card in the prior art, wherein, Fig. 1-B is the side view of Fig. 1-A.When using the blue clamping clip clamping work pieces of card shown in Figure 1, earlier workpiece 105 is dropped on the fetalism of workbench 106, upset chuck 101 is located at the top of workpiece 105; Insert good latch 102, torsional latch 102 makes jackscrew 103 rotations, promotes pressure head 104 contact workpieces 105; Continue rotation jackscrew 103, flatten until distortion place and make workpiece and fetalism subsides sternly, so far finish the clamping operation workpiece 105.
Adopt the blue clamping clip clamping work pieces of above-mentioned card, though the general deflection of workpiece is less than 5 millimeters, the pressure that needs is less than 1 ton force, but during practical operation, when particularly the workpiece on fetalism has a lot of positions to flatten, will cause operator's labour intensity excessive, and the operating time is long, inefficiency can not satisfy the beat of production.
In order to address the above problem, prior art provides a kind of active grab, with reference to Fig. 2, shows the working state schematic representation of active grab in the prior art, and wherein, Fig. 2-B is the side view of Fig. 2-A.When using active grab clamping work pieces shown in Figure 2, earlier workpiece 205 is dropped on the fetalism of workbench 206, upset chuck 201 is located at the top of workpiece 205; Bolt 202 on the rotary chuck 201 promotes pressure head 204 and contacts with workpiece 205, continues swivel bolt 202, and with the flexural deformation place pressing of workpiece 205, it is tight that workpiece and fetalism are pasted, and so far finishes clamping work.
Though above-mentioned active grab can be very near the position, but this active grab comes into force in the time of can only being applied in mechanical dead point, because of workpiece has bending, and each crooked height differs, when using above-mentioned active grab workpiece pressing, because of it can not be in mechanical dead-centre position, thereby can not provide very big active force support, so inefficacy or the not tight phenomenon of folder can occur clamping.
The utility model content
Technical problem to be solved in the utility model is: when carrying out the workpiece assembling on fetalism, how can realize workpiece is effectively clamped fast, satisfy the production demand.
In order to address the above problem, the utility model discloses a kind of clamping device, comprise mechanical part and hydraulic drive part, wherein: described mechanical part comprises hand pressure handle, connecting plate and base and above-mentioned mechanical part is fixed in retaining element on the workbench that also comprise: an end is fixedly connected with the depression bar of one-way cylinder as pressure head; Above-mentioned hydraulic drive partly is used to above-mentioned one-way cylinder that power is provided; The middle part of above-mentioned hand pressure handle is connected with an end of above-mentioned connecting plate by first alignment pin; The bottom of above-mentioned hand pressure handle is connected with above-mentioned base by the 3rd alignment pin; The other end of above-mentioned connecting plate is connected with the middle part of above-mentioned depression bar by second alignment pin; The other end of above-mentioned depression bar is connected with above-mentioned base by the 4th alignment pin; Motion when the above-mentioned hand pressure handle of response, when making above-mentioned first alignment pin, second alignment pin and the 3rd alignment pin be positioned at same straight line, above-mentioned clamping device is in the position at mechanical dead point, at this moment, the center line of above-mentioned one-way cylinder and above-mentioned straight line parallel, and perpendicular to the table top of above-mentioned workbench.
Preferably, above-mentioned hydraulic drive part specifically comprises: the air filtration pressure regulator that connects successively by flexible pipe, air check valve, manually control air valve, air boost pump and oil path block; Above-mentioned oil path block is connected with above-mentioned one-way cylinder; Wherein, be connected with oil conservator, Pressure gauge on the above-mentioned air boost pump.
Preferably, be connected with air silencer on the above-mentioned manual control air valve.
Preferably, above-mentioned hydraulic drive part is a power with the wind regime.
Preferably, above-mentioned clamping device provides the pressure of 0.5～2 ton force.
Preferably, the stroke range of above-mentioned clamping device is: 0～10 millimeter.
Preferably, said apparatus comprises two above-mentioned mechanical parts at least, and the one-way cylinder of each above-mentioned mechanical part partly is connected with above-mentioned hydraulic drive by oil path block.
Preferably, the oil path block of above-mentioned hydraulic drive part is the oil path block that is no less than threeway.
Compared with prior art, the utlity model has following advantage:
The clamping device that uses the utility model to provide not only can be realized quick acting, and can apply active force, the gap between the workpiece can be eliminated, and guarantees to be in stable state when workpiece carries out manufacturing such as assembly welding or processing, has improved the workmanship of workpiece.
In addition, the clamping device that the utility model provides has adopted the structure that can bear reaction force at mechanical dead point, adopts small oil tank to apply active force, the novel structure compactness at the pressure head place; Provide power with the booster pump that relies on wind regime for a plurality of active grabs, for the user provides safe clean and tidy working environment.
In a word, the clamping device that the utility model provides is easy to use, and is simple to operate, effectively alleviated operator's labour intensity, improved labor productivity, and improved product quality.
Description of drawings
Fig. 1 is the working state schematic representation of the blue clamping clip of card in the prior art;
Fig. 2 is the working state schematic representation of active grab in the prior art;
Fig. 3 is the schematic diagram that the mechanical part of the utility model clamping device embodiment is in open mode;
Fig. 4 is the schematic diagram that the utility model mechanical part is in clamped condition;
Fig. 5 is the structural representation of the hydraulic drive part of the utility model hold down gag;
Fig. 6 is the structural representation of the utility model air boost pump;
Fig. 7 is the schematic diagram of four clamping clip collaborative works of the utility model.
The specific embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
The clamping device that the utility model embodiment provides comprises two parts: mechanical part and hydraulic drive part.The structure and different duties of the utility model clamping device mechanical part are described below in conjunction with Fig. 3, Fig. 4.
With reference to Fig. 3, the mechanical part that shows the utility model clamping device embodiment is in the schematic diagram of open mode.
As shown in Figure 3, the mechanical part of the utility model clamping device embodiment comprises: hand pressure handle 1, connecting plate 3, an end are fixedly connected with the depression bar 5 and the base 6 of one-way cylinder 51, and above-mentioned one-way cylinder 51 pressure head as clamping device in the utility model embodiment uses.
The annexation of above-mentioned each parts is: the upper end of hand pressure handle 1 is an operating handle; The middle part of hand pressure handle 1 is hinged with an end of connecting plate 3 by first alignment pin 2; The lower end of hand pressure handle 1 is hinged with base 6 by the 3rd alignment pin 7.The other end of connecting plate 3 is hinged with the middle part of depression bar 5 by second alignment pin 4; The other end of depression bar 5 is hinged by the 4th alignment pin 10 (shown in Fig. 4-A) and base 6.Base 6 is provided with screw, uses screw 8 that base is fixed on the workbench.For with base 6 more steadily, be firmly fixed on the workbench, between screw and screw, be equipped with elastic washer 9.Wherein, the combination of above-mentioned screw, screw and elastic washer is only represented and is used for mechanical part is fixed in a kind of of retaining element on the workbench, also can replace with other retaining elements, does not limit at this.
Before using the utility model clamping device, utilize screw 8 and elastic washer 9 that clamping device is installed on the workbench earlier, the top of considering fetalism needs material loading and blanking, so the original state of above-mentioned clamping device should be releasing orientation, ensure that promptly one-way cylinder 51 is not in the top of workbench, as shown in Figure 3.
With reference to figure 4, show the schematic diagram that the utility model mechanical part is in clamped condition, wherein Fig. 4-B is the side view of Fig. 4-A.After workpiece drops on the fetalism, hand pressure handle 1 is boosted, the motion of clamping device response hand pressure handle 1, the position of first alignment pin 2, second alignment pin 4 and the 3rd alignment pin 7 is positioned on same the straight line a, clamping device is in the position at mechanical dead point, promptly three pin joints become a line, the impact that can bear reaction force.
At this moment, the center line b of one-way cylinder 51 (referring to Fig. 4-A) parallel with above-mentioned straight line a, and perpendicular to the table top of workbench.
The foregoing description has been described the structure and the working state schematic representation of the mechanical part of the utility model hold down gag.Need to prove, do not limit the shape and the position relation of hand pressure handle, depression bar and base in the utility model, as long as when guaranteeing that the position of above-mentioned first alignment pin, second alignment pin and the 3rd alignment pin is positioned at straight line, clamping device is in the position at mechanical dead point, and, the straight line parallel at the center line of one-way cylinder and above-mentioned three alignment pin places, and get final product perpendicular to the table top of above-mentioned workbench.
Hydraulic drive partly is used to one-way cylinder that power is provided, and hydraulic pressure can be converted into mechanical energy, and one-way cylinder can be produced being out of shape the active force of workpiece.With reference to Fig. 5, show the structural representation of the hydraulic drive part of the utility model hold down gag.Hydraulic drive partly comprises with lower member: air filtration pressure regulator 24, air check valve 23, manually control air valve 21, air boost pump 19, oil path block 13, oil conservator 16, Pressure gauge 17.
The annexation of above-mentioned each parts is: the output of air filtration pressure regulator 24 is connected with the input of air check valve 23, the output of air check valve 23 is connected with an end of manually controlling air valve 21, manually the output of control air valve 21 is connected with air boost pump 19 with flexible pipe 15 by quick change pipe joint 20, an other end of air boost pump 19 is connected with an end of oil path block 13, above-mentioned air boost pump 19 also is connected with oil conservator 16 and Pressure gauge 17 in addition, and Pressure gauge 17 is connected on the air boost pump 19 by reducer union 18.The other end of oil path block 13 connects one-way cylinder 51.
As the utility model clamping device preferred embodiment, manually also be connected with air silencer 22 on the control air valve 21, be used to eliminate or weaken the noise that produces when hydraulic transmission is worked, reduce noise pollution, for the operator provides relatively quietly working environment.
The operation principle of above-mentioned hydraulic part embodiment is:
The power wind regime is introduced into air filtration pressure regulator 24, makes the air cleaning that becomes; Then enter air check valve 23, air check valve can avoid insufficient pressure to occur refluxing; Operation is control air valve 21 manually, makes the wind path commutation, and the direction of motion of piston in the control air boost pump 19 because of another chamber of air boost pump 19 is a hydraulic oil, so the top in this chamber connects Pressure gauge 17, shows its numerical value by Pressure gauge 17; The direction of motion of hydraulic oil has just been controlled in the action of piston in the air boost pump 19; Specifically the structural representation Fig. 6 in conjunction with air boost pump describes: air boost pump 19 is divided into air chamber and fluid chamber, has filled with hydraulic oil in the fluid chamber and is connected with Pressure gauge 17 with oil conservator 16.Suppose that air chamber is divided into M chamber and N chamber by piston, after manual control air valve 21 control gases enter the M chamber, the gas pressure intensity P in the M chamber
MIncrease, at this moment P
M＞P
N, piston moves right, and promotes hydraulic oil and enters oil path block 13, and oil path block 13 is supplied with one-way cylinder 51 respectively with hydraulic oil; One-way cylinder 51 drives oil cylinder under the thrust of hydraulic oil piston rod clamps workpiece, eliminates to the gap to workpiece and fetalism.Behind the workpiece welding assembly end-of-job, manually control air valve 21 commutations of operation, control gas enters the N chamber, the gas pressure intensity P in the N chamber
NIncrease, at this moment P
M＜P
N, the piston reverses direction motion of air boost pump 19 is promptly to left movement, at this moment, the oil that one-way cylinder is 51 li flows back in the oil conservator 16 through oil path block to backflow, the piston rod of one-way cylinder is the effect withdrawal down of portion's spring within it, and clamping device unclamps workpiece, end-of-job.
The clamping device that the utility model embodiment provides can provide scope to be: the active force of 0.5～1.5 ton force, and wherein, ton force is a unit of force, it is the gravity that the object of a ton (that is, 1000 kilograms) is subjected under standard state that 1 ton force is equivalent to quality.The stroke range of the clamping device that the utility model embodiment provides is: 0～10 millimeter, promptly, the clamping device that use the utility model provides all can compress the workpiece of the margin of tolerance in 0～10 millimeter of degree of crook, has avoided clamping losing efficacy or the not generation of tight phenomenon of folder.
In addition, the novel clamping device that provides of this use is applied to railway freight-car parts when assembling, generally adopts at least two mechanical part collaborative works, applies active force at the diverse location of workpiece, makes that workpiece and fetalism are strict to be pasted sternly.In the utility model, we claim that mechanical part is a clamping clip.For example, for the workpiece that certain area is arranged, adopt four clamping clips to compress at place, four angles of workpiece.Can adopt more than four clamping clips for large-area, in a word, the number of clamping clip is according to the area of workpiece or degree of crook and decide.When adopting a plurality of clamping clips that workpiece is compressed, the oil path block of above-mentioned hydraulic drive part is many logical oil path blocks.With reference to Fig. 7, show the schematic diagram of a plurality of clamping clip collaborative works of the utility model.When using four clamping clip collaborative works, air boost pump 19 is by one-way cylinder 51 fuel feeding that five-way oil path block 13 is each clamping clip.
In sum, the clamping device that uses the utility model to provide not only can be realized quick acting, and can apply active force, the gap between the workpiece can be eliminated, guarantee to be in stable state when workpiece carries out manufacturings such as assembly welding or processing, improved the workmanship of workpiece.
In addition, the clamping device that the utility model provides has adopted the structure that can bear reaction force at mechanical dead point, adopts small oil tank to apply active force, the novel structure compactness at the pressure head place; Provide power with the booster pump that relies on wind regime for a plurality of active grabs, for the user provides safe clean and tidy working environment.
In a word, the clamping device that the utility model provides is easy to use, and is simple to operate, effectively alleviated operator's labour intensity, improved labor productivity, and improved product quality.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
More than to a kind of clamping device provided by the utility model, be described in detail, used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (8)
1. clamping device, it is characterized in that, comprise mechanical part and hydraulic drive part, wherein: described mechanical part comprises hand pressure handle, connecting plate and base and described mechanical part is fixed in retaining element on the workbench that also comprise: an end is fixedly connected with the depression bar of one-way cylinder as pressure head;
Described hydraulic drive partly is used to described one-way cylinder that power is provided;
The middle part of described hand pressure handle is connected with an end of described connecting plate by first alignment pin; The bottom of described hand pressure handle is connected with described base by the 3rd alignment pin;
The other end of described connecting plate is connected with the middle part of described depression bar by second alignment pin;
The other end of described depression bar is connected with described base by the 4th alignment pin;
Motion when the described hand pressure handle of response, when making described first alignment pin, second alignment pin and the 3rd alignment pin be positioned at same straight line, described clamping device is in the position at mechanical dead point, at this moment, the center line of described one-way cylinder and described straight line parallel, and perpendicular to the table top of described workbench.
2. clamping device according to claim 1 is characterized in that, described hydraulic drive part specifically comprises: the air filtration pressure regulator that connects successively by flexible pipe, air check valve, manually control air valve, air boost pump and oil path block; Described oil path block is connected with described one-way cylinder; Wherein, be connected with oil conservator, Pressure gauge on the described air boost pump.
3. clamping device according to claim 2 is characterized in that, is connected with air silencer on the described manual control air valve.
4. clamping device according to claim 1 is characterized in that, described hydraulic drive part is a power with the wind regime.
5. clamping device according to claim 1 is characterized in that described clamping device provides the pressure of 0.5～2 ton force.
6. clamping device according to claim 1 is characterized in that, the stroke range of described clamping device is: 0～10 millimeter.
7. clamping device according to claim 1 is characterized in that, described device comprises two described mechanical parts at least, and the one-way cylinder of each described mechanical part partly is connected with described hydraulic drive by oil path block.
8. clamping device according to claim 7 is characterized in that, the oil path block of described hydraulic drive part is the oil path block that is no less than threeway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202709483U CN201579713U (en) | 2009-12-02 | 2009-12-02 | Clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202709483U CN201579713U (en) | 2009-12-02 | 2009-12-02 | Clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201579713U true CN201579713U (en) | 2010-09-15 |
Family
ID=42721706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202709483U Expired - Fee Related CN201579713U (en) | 2009-12-02 | 2009-12-02 | Clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201579713U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108391936A (en) * | 2018-02-08 | 2018-08-14 | 际诺思股份公司 | Fast demountable desk and its assemble method |
| CN109016987A (en) * | 2018-10-15 | 2018-12-18 | 长沙宁湖机械设备有限公司 | A kind of automatic page turner |
| CN109590927A (en) * | 2018-12-17 | 2019-04-09 | 重庆渝达六星动力机械有限公司 | It is a kind of for producing the safety-type processing unit (plant) and processing method of cylinder head |
-
2009
- 2009-12-02 CN CN2009202709483U patent/CN201579713U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108391936A (en) * | 2018-02-08 | 2018-08-14 | 际诺思股份公司 | Fast demountable desk and its assemble method |
| CN109016987A (en) * | 2018-10-15 | 2018-12-18 | 长沙宁湖机械设备有限公司 | A kind of automatic page turner |
| CN109590927A (en) * | 2018-12-17 | 2019-04-09 | 重庆渝达六星动力机械有限公司 | It is a kind of for producing the safety-type processing unit (plant) and processing method of cylinder head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20131202 |