CN214351050U - Pneumatic clamp - Google Patents

Abstract

The utility model discloses a pneumatic clamp for the centre gripping operation to the work piece in the machine-building process. This anchor clamps adopt gas as the operation of receiving and releasing of driving source and control anchor clamps, are equipped with the air inlet on the body, and gas enters the piston work that the cavity is inside back drive lies in the body lateral wall, and the piston makes rather than the splint shrink of being connected, and splint have the shell fragment through bolted connection, and the lower extreme distribution of shell fragment has the tooth claw that is used for the short and small work piece of centre gripping, also is equipped with the grabbing ability that colludes the tooth and be used for strengthening this anchor clamps on one side backplate of splint. The utility model discloses a gaseous control that realizes anchor clamps has improved the simple operation nature of anchor clamps, and the utility model discloses a setting through the symmetry has also increased the stability of anchor clamps.

Description

Pneumatic clamp

Technical Field

The utility model belongs to clamping device, concretely relates to pneumatic fixture.

Background

In the production and manufacturing process of mechanical parts, many processes, such as grinding, polishing, drilling and the like, are generally required, and a clamping device is required to fix a workpiece when the processes are performed.

On current operation panel, general clamping device divide into fixed installation and portable the snatching, fixed installation indicates to reserve the fixed of position realization work piece through the operation panel, generally say that hydraulic means presss from both sides tightly or screw up etc. through the bolt, portable the snatching generally indicates to carry out the device of snatching on mechanical upper arm, the work of taking of spare part is realized through the work of putting one by one, to carrying out drilling or polished work piece after the needs centre gripping, its power of snatching needs accurate control, too big can lead to spare part surface damage, the undersize probably drops or produces the displacement when polishing and bring the deviation.

In most clamping devices for grabbing in the mechanical field, hydraulic driving is adopted, a driving claw is retracted and released through the pressure of hydraulic oil, mechanical claws are universal, and the clamping devices are simple and do not have good supporting functions such as resetting.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a pneumatic fixture, this anchor clamps solve the stability problem of centre gripping work piece among the prior art through pneumatic mode, improve prior art's control accuracy problem.

The technical scheme is as follows: the utility model provides a pneumatic clamp, this anchor clamps include the inside body that is equipped with the cavity, and the top is equipped with the air inlet on the body, controls the action of the piston spare that gaseous drive is located body one side through the air inlet, and piston spare is fixed with splint, splint pass through the bolt and set up the shell fragment, and the lower extreme distribution of shell fragment has the tooth claw that is used for the centre gripping work piece, also is equipped with on one side backplate of splint and colludes the tooth, is equipped with the apron in the outside of shell fragment.

Furthermore, one side of the body of the clamp is provided with a horizontally movable adjusting block, the adjusting block is connected with the body through a clamping groove, and the adjusting block is used for adjusting the mounting position between the clamp and the mechanical control platform.

Further, the air inlet is positioned on a mounting plate at the upper part of the body, and an air hole is formed in the mounting plate and used for pressurizing or exhausting air in the cavity;

furthermore, the mounting plate is provided with a mounting hole for fixing and a through hole for auxiliary positioning.

Further, splint and piston spare are fixed, and are equipped with adjusting bolt between splint and the piston spare, adjusting bolt is used for adjusting the roughness between splint and the piston spare.

Furthermore, a spring is arranged between the elastic sheet and the clamping plate, one end of the spring props against a tooth claw on the elastic sheet, and the other end of the spring props against a hook tooth at the back of the clamping plate and is used for resetting the hook tooth;

furthermore, the hook teeth are connected with the clamping plate through buckles, and a plurality of groups of the hook teeth are distributed in an arranged mode.

Furthermore, a spring is wound on the bolt used for fixing between the clamping plate and the elastic sheet.

Has the advantages that: compared with the prior art, pneumatic fixture replaced traditional fluid pressure type drive, adopt the combination mode of pneumatics and piston, compare the operation high efficiency convenience more of fluid pressure type. Secondly, anchor clamps are equipped with the air inlet and are used for the gas pocket of pressure boost or pressure release, can keep the motion of certain gas surplus pressure and piston that is used for control chamber, and when using, the precision that two strands of gas can improve control. Additionally, the utility model discloses still be equipped with the shell fragment in the outside of splint, still increase through the shell fragment that there is the spring to be used for reseing, in anchor clamps centre gripping work piece, collude the trend that the tooth all has reseing, it is better to compare traditional anchor clamps result of use.

Drawings

Fig. 1 is a schematic structural diagram of a clamp according to the present invention;

fig. 2 is a schematic structural diagram ii of the clamp of the present invention;

fig. 3 is an exploded view of the structure of the clamp of the present invention.

In the figure: 1. the adjustable spring plate comprises a body, 2, an adjusting block, 3, an installing plate, 4, an installing hole, 5, a piston piece, 6, a clamping plate, 601, an adjusting bolt, 7, a bolt, 8, an elastic sheet, 801, a tooth claw, 9, a spring, 10, a hook tooth, 11, a cover plate, 12 and a through hole.

Detailed Description

For the purpose of explaining the technical solution disclosed in the present invention in detail, the following description is further made with reference to the accompanying drawings and specific embodiments.

The utility model provides a pneumatic fixture, this anchor clamps are arranged in snatching of spare part course of working and the centre gripping is fixed, adopt gas as the control source. The structure is shown in fig. 1-3.

Pneumatic clamp, its body 1 is the forging, can adopt integral type structure also can the discrete structure. The cavity is arranged in the piston piece 5, a piston in the piston piece 5 moves outwards under the pressure of the air, and the top end of the piston piece 5 is provided with a clamping plate 6. The clamping plate 6 is also fixed with the end part of the piston, and the movement of the piston drives the retraction and extension movement of the clamping plate 6. For the piston member 5, one end is located on the body 1. A piston position is arranged on the body 1, and a piston in the piston piece is communicated with a cavity in the body 1 and is arranged in a sealing way. Piston spare 5 is including setting up in the column structure of oval-shaped, and the motion interval of extension piston also can avoid the unsmooth motion interference to splint 6 of body 1 structure.

The body 1 may have a vertical zigzag structure as shown in fig. 2, and an installation plate 3 is additionally provided. After the mounting plate 3 is separately arranged in this embodiment, the specific structure is as follows:

the mounting holes 4 on the mounting plate 3 are used for mounting the clamp, and meanwhile, in order to improve the adjustment of the mounting position and stabilize the mounting position, through holes 12 are arranged to assist in mounting or positioning. After the mounting plate 3 is arranged, the clamp is convenient to mount, and the split mounting is convenient to maintain. Further, the mounting plate 3 is provided with a gas channel for gas transmission therein, and is further provided with a gas hole 302 for pressurization or pressure relief. The pressure boost generally lies in that the in-process work piece of centre gripping is heavier can increase stability at the in-process of carrying out the drilling of polishing, and it is more convenient that the pressure release takes place when unclamping splint 6 and putting down the work piece, also can control gas pocket 302 to release certain pressure and realize unloading spare part under the unchangeable condition of air inlet 301 simultaneously, improves maneuverability, and here, this gas pocket 302 can also be used for the gas tightness maintenance operation of this anchor clamps simultaneously.

The left side of body 1 still is equipped with regulating block 2, this regulating block 2 is used for adjusting the roughness after this anchor clamps are fixed at the operation panel, regulating block 2 is quadrilateral, one side of being connected with body 1 is the hypotenuse, the big other end of one end is little, the draw-in groove internal motion of regulating block 2 on body 1, the draw-in groove is the rectangular channel of rule, and its inside card strip that is equipped with realizes fixedly, fix back on manipulator or operation panel at anchor clamps, the position of regulating block 2 can be controlled and removed, different depth of insertion through the hypotenuse, the corresponding effort that produces the difference, thereby extrude body 1, make the mounted position of body 1 take place to change a little, improve the roughness of its installation.

More specifically, the mounting panel 3 is set up firstly to make things convenient for the installation of anchor clamps, secondly sets up air inlet 301 on the mounting panel 3 and has changed the mode of direct air admission, and the power that gas produced is in the cavity effect, and the reaction force that the difference and direct intake duct produced at pressure acts on, and the control of operation progress can be influenced to the reaction force of direct air admission. In addition, the mounting plate 3 is also convenient to be provided with the air hole 302, and the pressure control and the working control of the piston are more accurate.

The middle part bilateral symmetry of body 1 sets up piston spare 5, splint 6 and shell fragment 8 etc. in the inside cavity of body 1, the motion of piston in the piston spare 5 can be driven to gaseous pressure, and the tip of piston is fixed with splint 6, and the operation of taking of work piece is promptly to receive and release of splint 6. One side of the piston piece 5 is sealed and connected with the cavity of the body 1 and is fixed on the body 1, and the other end of the piston piece 5 is sealed and connected with the clamping plate 6. The specification of the clamp for the workpiece is determined according to the stroke of the piston piece 5, and the clamp can be adjusted according to actual needs, wherein the adjustment mode is that the length of the piston is prolonged or one end of the piston is fixed with the clamping plate 6 through a connecting rod. Generally, in the actual operation process, the loosening dimension of the clamp is only slightly larger than the thickness of the workpiece. Piston spare 5 is oval-shaped columnar structure, and in this embodiment, the cross section of being connected the face with splint 6 is fillet rectangle, and its piston also can be through a set of or multiunit setting, makes things convenient for splint 6's installation and presss from both sides the atress of getting the in-process even.

The piston is connected to the clamp plate 6 through an adjusting bolt 601, and the adjusting bolt 601 also has flatness adjustment, so that the clamp plate 6 is more closely arranged at the end of the piston piece 5. The clamping plate 6 is provided with a bolt 7, and the elastic sheet 8 is arranged on the clamping plate 6 through the bolt 7. The elastic sheet 8 is made of elastic steel sheets, the bottom of the elastic sheet 8 is provided with a plurality of tooth claws 801, the number of the tooth claws 801 is one or more, the embodiment is preferable, the number of the tooth claws 801 corresponds to that of the hook teeth 10, the upper end bayonet of the hook teeth 10 is arranged on the inner side of the clamping plate 6, the lower end of the hook teeth has a certain stroke, the lower end of the hook teeth is supported by the spring 9, the other end of the spring 9 is propped against the tooth claws 801, in the process of clamping a workpiece by the clamping plate 6, the spring 9 keeps a certain force to act on the hook teeth 10, and the hook teeth 10 have a resetting trend. The hook teeth 10 are arranged in a sectional manner and distributed in an arrayed manner, so that the short and small workpieces can be conveniently taken, and the stability is improved.

The utility model discloses an improve the neatness degree of anchor clamps is equipped with apron 11 in the outside of shell fragment 8.

Anchor clamps adopt gaseous negative pressure in the cavity to realize the work piece centre gripping, compare the drive of fluid pressure type more the operation high-efficient accurate, the drive of fluid pressure type generally needs the flow of fluid, the drive speed is compared gaseous slower, also need set up oil return line. The gas is easy to release and release. And, the utility model discloses to the setting of symmetry formula with shell fragment 8, collude the tooth 10 etc. arrange more work piece needs that are applicable to the difference.

Claims (8)

1. A pneumatic clamp is characterized in that: the clamp comprises a body (1) with a cavity inside, wherein an air inlet (301) is formed in the top of the body (1), a piston piece (5) located on one side of the body (1) is controlled to drive air through the air inlet (301) to move, a piston in the piston piece (5) is fixed with a clamping plate (6), the clamping plate (6) is provided with an elastic sheet (8) through a bolt (7), a toothed claw (801) is distributed at the lower end of the elastic sheet (8), a hook tooth (10) used for clamping a workpiece is also arranged on a back plate on one side of the clamping plate (6), and a cover plate (11) is arranged on the outer side of the elastic sheet (8).

2. The pneumatic clamp of claim 1, wherein: but body (1) top one side of this anchor clamps is equipped with horizontal migration's regulating block (2), regulating block (2) are connected with body (1) through the draw-in groove, and roughness when regulating block (2) are used for adjusting this anchor clamps installation.

3. The pneumatic clamp of claim 1, wherein: air inlet (301) are located mounting panel (3) on body (1) upper portion, are equipped with gas pocket (302) on mounting panel (3), gas pocket (302) are used for the pressure boost in the cavity or lose heart.

4. The pneumatic clamp of claim 3, wherein: and the mounting plate (3) is provided with a mounting hole (4) for fixing and a through hole (12) for auxiliary positioning.

5. The pneumatic clamp of claim 1, wherein: splint (6) are fixed with piston spare (5), and are equipped with adjusting bolt (601) between splint (6) and piston spare (5), adjusting bolt (601) are used for adjusting the roughness between splint (6) and piston spare (5).

6. The pneumatic clamp of claim 1, wherein: a spring (9) is arranged between the elastic sheet (8) and the clamping plate (6), one end of the spring (9) abuts against a tooth claw (801) on the elastic sheet (8), and the other end of the spring abuts against a hook tooth (10) on the back of the clamping plate (6) and is used for resetting the hook tooth (10).

7. The pneumatic clamp of claim 6, wherein: the hook teeth (10) are connected with the clamping plate (6) through buckles, and a plurality of groups of the hook teeth are arranged and distributed or arranged in a segmented mode.

8. The pneumatic clamp of claim 1, wherein: and a spring is wound on the bolt (7) used for fixing between the clamping plate (6) and the elastic sheet (8).

Images