CN217168168U

CN217168168U - Airtight detection anchor clamps

Info

Publication number: CN217168168U
Application number: CN202123329741.9U
Authority: CN
Inventors: 汪一峰; 陈培虎; 张山山; 郭明波
Original assignee: Changzhou Nabotsk Precision Machinery Co ltd
Current assignee: Changzhou Nabotsk Precision Machinery Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-08-12
Anticipated expiration: 2031-12-28

Abstract

The utility model relates to an air tightness detection clamp, which comprises a chuck, a clamping jaw, an air tightness connector and an air pipe, wherein the chuck is internally provided with an axle center hole; the clamping jaws are at least three and are uniformly arranged on the chuck, air passages are arranged inside the clamping jaws, and upper ports of the air passages are positioned on the positioning surfaces of the clamping jaws; the airtight connector is arranged in the axis hole; one end of the air pipe is connected with the airtight connector, and the other end of the air pipe is communicated with the air passage. The utility model discloses simplify the structure and the manufacture craft of whole anchor clamps, reduced manufacturing cost, it is more convenient to use.

Description

Airtight detection anchor clamps

Technical Field

The utility model belongs to the technical field of turning attachment, concretely relates to airtight detection anchor clamps.

Background

The work piece need utilize airtight detection anchor clamps to fix it when adding man-hour, and airtight detection tool and jack catch are split type structure among the traditional airtight detection anchor clamps, and wherein airtight detection tool is the work piece locating surface, the excircle of jack catch centre gripping work piece. But the detachable airtight detection jig is complicated in disassembly and assembly process and complex in manufacturing process, and the production cost is directly increased.

In the use, can fall into iron fillings in the gap between airtight detection tool and the jack catch, the clearance is very inconvenient to because airtight detection tool's trachea exposes externally, the existence of iron fillings very easily causes tracheal fish tail, influences airtight detection tool's life.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an airtight detection anchor clamps to solve the complicated problem of anchor clamps structure.

The utility model discloses an airtight detection anchor clamps realize like this:

an air tightness detection clamp comprises

The chuck is internally provided with a shaft center hole;

the clamping jaws are at least three and are uniformly arranged on the chuck, air passages are arranged inside the clamping jaws, and upper ports of the air passages are located on the positioning surfaces of the clamping jaws;

the airtight connector is arranged in the axle center hole;

and one end of the air pipe is connected with the airtight connector, and the other end of the air pipe is communicated with the air passage.

Further, the bottom of jack catch is provided with dodges the groove, the lower port of air flue is located dodge the inslot.

Further, trachea quick-operation joint I is installed to tracheal upper end, trachea quick-operation joint I with the lower port screw-thread fit of air flue.

Further, be provided with the gas pocket on the lateral wall of airtight connector, tracheal lower extreme install with gas pocket screw-thread fit's trachea quick-operation joint II.

Furthermore, the locating surface of jack catch is provided with the boss, the last port of air flue is located on the boss.

Furthermore, the lower end of the airtight connector is connected with an airtight air supply rod.

Furthermore, a baffle is installed at the upper end of the axle center hole, and the airtight connector is fixed at the bottom of the baffle.

Furthermore, a jaw seat capable of moving towards or away from the axis of the chuck is installed on the chuck, and the jaws are fixed on the jaw seat through bolts.

Further, the bottoms of the clamping jaws are matched with the clamping jaw seats through tooth surfaces.

After the technical scheme is adopted, the utility model discloses the beneficial effect who has does:

(1) the utility model integrates the air tightness detection part on the clamp, thereby not only simplifying the structure and the manufacturing process of the whole clamp and reducing the production cost, but also avoiding the problem of difficult cleaning of scrap iron and being more convenient to use;

(2) the utility model discloses an offer the air flue in the jack catch, form built-in air flue structure, can effectively avoid iron fillings to its wearing and tearing that cause, prolong the life of anchor clamps.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is an axial sectional view of an airtight inspection jig according to a preferred embodiment of the present invention;

FIG. 2 is an axial cross-sectional view of the chuck of the air tightness detection fixture of the preferred embodiment of the present invention;

FIG. 3 is a cross-sectional view of the jaws of the air-tightness detection fixture of the preferred embodiment of the present invention;

fig. 4 is an axial sectional view of the airtight connection head of the airtightness detection jig according to the preferred embodiment of the present invention;

in the figure: chuck 1, jack catch 2, airtight connector 3, trachea 4, axle center hole 5, air flue 6, dodge groove 7, locking screw 8, trachea quick-operation joint I9, gas pocket 10, trachea quick-operation joint II 11, boss 12, airtight pole 13 of sending gas, baffle 14, jack catch seat 15, bolt 16, pilot hole 17, work piece 18.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-4, an airtight detection clamp comprises a chuck 1, jaws 2, an airtight connector 3 and an air pipe 4, wherein a shaft center hole 5 is formed in the chuck 1; the clamping jaws 2 are at least three and are uniformly arranged on the chuck 1, air passages 6 are arranged inside the clamping jaws 2, and upper ports of the air passages 6 are positioned on the positioning surfaces of the clamping jaws 2; the airtight connector 3 is arranged in the shaft center hole 5; one end of the air pipe 4 is connected with the airtight connector 3, and the other end is communicated with the air passage 6.

In the embodiment, three clamping jaws 2 are provided, and each clamping jaw 2 is provided with an air passage 6 therein, and correspondingly, air pipes 4 respectively connected with the air passages 6 in the three clamping jaws 2 are also provided.

And the clamping side of the clamping jaw 2 is L-shaped and comprises a positioning surface positioned in the transverse direction and a clamping surface positioned in the vertical direction.

In order to facilitate the connection of the lower port of the air passage 6 and the air pipe 4, the bottom of the clamping jaw 2 is provided with an avoiding groove 7, and the lower port of the air passage 6 is positioned in the avoiding groove 7.

Specifically, air flue 6 includes the triplex, is located and dodges the lower vertical section of 7 tops in the groove, is located the horizontal segment at vertical section top down to and be located the horizontal segment top and extend to the last vertical section of locating surface, wherein the outside that vertical section place sharp was located to the straight line of vertical section place down is convenient for set up the last port of air flue 6 on the clamping face of jack catch 2

Wherein, for convenient processing, the inner end of horizontal section is the opening setting, and the opening part utilizes locking screw 8 to seal to guarantee the leakproofness of air flue 6.

In order to realize the communication between the air pipe 4 and the air passage 6, an air pipe quick connector I9 is installed at the upper end of the air pipe 4, and the air pipe quick connector I9 is in threaded fit with the lower port of the air passage 6.

Specifically, the air pipe 4 is of a Z-shaped structure, the upper end of the air pipe extends into the avoiding groove 7, and the air pipe is in threaded connection with the lower port of the air passage 6 through an air pipe quick connector I9.

In order to realize the communication between the air pipe 4 and the airtight connector 3, an air hole 10 is arranged on the side wall of the airtight connector 3, and an air pipe quick connector II 11 in threaded fit with the air hole 10 is arranged at the lower end of the air pipe 4.

In this embodiment, three air holes 10 with internal threads are formed in the side wall of the airtight connector 3, and a quick air pipe connector ii 11 installed at the lower end of the air pipe 4 can be screwed in the air holes 10, so as to communicate the air pipe 4 with the airtight connector 3 and communicate the airtight connector 3 with the air passage 6.

In order to reduce the interference of iron chips to the clamping process of the workpiece 18, the positioning surface of the clamping jaw 2 is provided with a boss 12, and the upper port of the air channel 6 is positioned on the boss 12.

The arrangement of the boss 12 enables the bottom surface of the workpiece 18 to be only contacted with the surface of the boss 12 in the clamping process, thereby reducing the contact area of the workpiece 18 and the clamping surface of the clamping jaw 2 and reducing the probability of abrasion of scrap iron to the workpiece 18.

In order to communicate the air duct 6 with the air source, the lower end of the airtight connector 3 is connected with an airtight air supply rod 13.

Specifically, the top of airtight connector 3 is the closing mechanism, and airtight pole 13 of sending gas is sealing connection with airtight connector 3, avoids appearing the condition of gas leakage, guarantees detection effect.

In order to prevent iron chips from falling into the axle center hole 5 to damage the air pipe 4 or the airtight connector 3, the baffle 14 is installed at the upper end of the axle center hole 5, and the airtight connector 3 is fixed at the bottom of the baffle 14.

Specifically, the baffle plate 14 is fixed to the chuck 1 by screws, thereby closing the top of the spindle hole 5.

In order to realize the clamping function of the jaws 2, a jaw seat 15 capable of moving towards or away from the axis of the chuck 1 is installed on the chuck 1, and the jaws 2 are fixed on the jaw seat 15 through bolts 16.

Specifically, the jaw seat 15 is provided with an assembling hole 17, the jaw 2 is placed on the jaw seat 15, and the bolt 16 penetrates through the jaw 2 and is loaded into the assembling hole 17, so that the connection between the jaw 2 and the jaw seat 15 can be realized.

The structure and moving manner of the jaw seat 15 can be selected from, but not limited to, the structure and clamping manner of the hydraulic chuck 1.

In order to ensure stability of the engagement between the claws 2 and the claw seats 15, the bottoms of the claws 2 are engaged with the claw seats 15 by tooth surfaces.

When the workpiece 18 is machined, the workpiece needs to be clamped on a clamp, the clamping precision directly affects the quality of subsequent machining of the workpiece 18, and the clamping precision needs to be detected in an airtight mode, and the specific mode is as follows:

the processing surface of a workpiece 18 to be processed is placed on the boss 12 of the clamping jaw 2 in an upward mode, the bottom surface of the workpiece 18 is made to be attached to the upper surface of the boss 12, and the clamping jaw 2 is driven to move towards the axis direction of the chuck 1 by the clamping jaw seat 15, so that the workpiece 18 is clamped. At this time, the airtight gas supply rod 13 is connected with a gas source, the gas sequentially enters the airtight connector 3, the gas pipe 4 and the gas channel 6, and the upper port of the gas channel 6 is blocked and sealed by the workpiece 18, so that each communicated part forms a sealed gas channel.

When the air supply of the air source is stopped, if the air pressure in the air path channel is kept stable, the bottom surface of the workpiece 18 is tightly attached to the upper surface of the boss 12, no impurities such as scrap iron interfere the workpiece, the clamping and positioning accuracy of the workpiece 18 is good, and the parallelism of the processing surface of the workpiece 18 and the processing quality of the subsequent workpiece 18 can be further ensured.

If the air pressure in the air passage is continuously reduced, a gap is left between the bottom surface of the surface workpiece 18 and the upper surface of the boss 12, namely impurities such as scrap iron and the like are possibly clamped between the bottom surface of the surface workpiece and the upper surface of the boss, so that the air leakage condition occurs, and then the workpiece 18 is in an inclined state, and the parallelism of the processing surface of the workpiece 18 is not ensured, so that the subsequent processing quality of the workpiece 18 is directly influenced. At this time, the workpiece 18 needs to be removed, and the surface of the boss 12 needs to be cleaned and then clamped and positioned again.

The utility model discloses with airtight detection integration on jack catch 2, can simplify the structure and the preparation technology of whole anchor clamps effectively, guarantee the effect that airtight detection was detected in the 18 centre gripping processes of work piece, improve the machining precision and the processingquality of work piece 18.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. An air tightness detection clamp is characterized by comprising

The chuck (1) is internally provided with a shaft center hole (5);

the clamping jaws (2) are at least three and are uniformly arranged on the chuck (1), air passages (6) are arranged inside the clamping jaws (2), and upper ports of the air passages (6) are located on the positioning surfaces of the clamping jaws (2);

an airtight connector (3) mounted in the axial hole (5);

and one end of the air pipe (4) is connected with the airtight connector (3), and the other end of the air pipe is communicated with the air passage (6).

2. The tightness detection clamp according to claim 1, wherein the bottom of the claw (2) is provided with an avoiding groove (7), and the lower port of the air passage (6) is located in the avoiding groove (7).

3. The airtightness detection jig according to claim 1, wherein an air pipe quick connector i (9) is mounted on an upper end of the air pipe (4), and the air pipe quick connector i (9) is in threaded fit with a lower port of the air passage (6).

4. The airtightness detection jig according to claim 1, wherein an air hole (10) is provided on a side wall of the airtight connector (3), and an air pipe quick connector ii (11) which is in threaded fit with the air hole (10) is installed at a lower end of the air pipe (4).

5. The airtightness detection jig according to claim 1, wherein the positioning surface of the claw (2) is provided with a boss (12), and the upper end opening of the air passage (6) is located on the boss (12).

6. The airtightness detection jig according to claim 1, wherein an airtight air feed rod (13) is connected to a lower end of the airtight connection head (3).

7. The airtightness detection jig according to claim 1, wherein a baffle plate (14) is mounted on an upper end of the axial hole (5), and the airtight connector (3) is fixed to a bottom of the baffle plate (14).

8. The airtightness detection jig according to claim 1, wherein the chuck (1) is provided with a claw seat (15) which can move toward or away from an axial center thereof, and the claw (2) is fixed to the claw seat (15) by a bolt (16).

9. The airtightness detection jig according to claim 8, wherein the bottom of the claw (2) is engaged with the claw seat (15) by a tooth surface.