CN210059919U

CN210059919U - Chuck with impact function

Info

Publication number: CN210059919U
Application number: CN201920604617.2U
Authority: CN
Inventors: 乔文章; 刘聪; 姜田
Original assignee: Shandong Weida Machinery Co Ltd
Current assignee: Shandong Weida Machinery Co Ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-02-14
Anticipated expiration: 2029-04-28

Abstract

The utility model provides a from area impact function chuck, it includes first impact piece, first slip cap, primary shaft cover, and primary shaft cover locates the rear portion of first impact piece, locates the internal downthehole fixed connection that forms with the first brill body of first brill simultaneously, and the front end periphery of the first brill body is located to first slip cap. When the torque transmitted by the first impact block is larger than the torque transmitted by the first impact block and the first sliding sleeve, the end face teeth of the first impact block and the end face teeth of the first sliding sleeve rotate relatively, impact is generated between the first impact block and the first sliding sleeve, the first sliding sleeve generates axial vibration, the vibration is transmitted to the first drill body through the first elastic body, and the whole chuck is further vibrated. The electric drill with the impact function solves the technical problem that the existing electric drill without the impact function cannot meet the requirement of the impact function, achieves the purpose of realizing the impact function without the electric drill with the impact function, expands the use function of the electric drill without the impact function, and can be widely applied to the technical field of clamps.

Description

Chuck with impact function

Technical Field

The utility model relates to an anchor clamps technical field, in particular to from taking impact function chuck.

Background

Electric drills in the current market can be divided into direct current electric drills and alternating current electric drills according to current, and can be divided into impact electric drills and electric drills without impact functions according to whether impact is carried or not, a drill chuck used by the electric drill generally consists of a drill body, clamping jaws, a nut sleeve, a bearing pad, a front sleeve and a rear sleeve, the three clamping jaws are respectively installed in three equally-divided inclined holes of the drill body, the nut is installed in a nut groove of the drill body, threads of the nut and the clamping jaws form a thread transmission mechanism, the nut sleeve is fixedly connected with the nut, the nut sleeve is in key connection with the front sleeve, the rear sleeve is fixedly connected with the drill body, and the rear part of the drill body is provided with a threaded hole or a; during the installation use, screw hole or taper hole at brill body rear portion are connected with the main shaft of electric drill, the main shaft of electric drill rotates the drive and bores the body and drives three clamping jaws and the synchronous rotation of instrument that presss from both sides and carry out the operation, however, when meetting the during operation in certain high strength operation field, the electric drill that does not take impact function does not have impact function and can't accomplish the operation, must change impact electric drill work, if the user that does not have impact electric drill then must purchase impact electric drill again and accomplish the operation, invisibly aggravated the customer burden in the middle of, customer's manufacturing cost has been increased.

Disclosure of Invention

The utility model aims at solving the technical deficiencies, providing a make the electric drill that does not take impact function realize impact function's chuck from taking impact function.

Therefore, the utility model provides a chuck with impact function, which comprises a bearing pad, a bearing, a nut sleeve, a front sleeve, a clamping jaw and a first drill body, wherein the clamping jaw is arranged in an equant inclined hole of the first drill body, the nut is arranged in a nut groove of the first drill body, the screw of the nut and the thread of the clamping jaw form a thread transmission mechanism, the nut sleeve is fixedly connected with the nut, the front sleeve is connected with the nut sleeve through a key, the impact device comprises a first impact block, a first sliding sleeve, a first shaft sleeve, a first elastic body, a first thrust steel ball and a first connecting steel ball, wherein a first internal thread hole and a first shaft end hole are respectively formed in the front end and the rear end of the first impact block; the first shaft sleeve is sleeved at the rear part of the first impact block and is in clearance fit with the first impact block, and a first shaft sleeve through hole is formed in the circumferential surface of the first shaft sleeve; the inner part of the front end of the first drill body is provided with a first drill body inner hole, a first shaft sleeve is arranged in the first drill body inner hole and is fixedly connected with the first drill body, the front end of the first drill body is provided with a first drill body through hole which is communicated with the first drill body inner hole and corresponds to the first shaft sleeve through hole along the circumferential direction of the first drill body, a first connecting steel ball is arranged in the first drill body through hole, the first connecting steel ball is arranged in the first drill body through hole and is also arranged in the first shaft sleeve through hole and a first connecting steel ball groove, the width of the first connecting steel ball groove is larger than the diameter of the first connecting steel ball, the bottom wall of the first drill body inner hole is provided with a first thrust steel ball buffer hole corresponding to the first shaft end hole, and the periphery of the front end of the first drill body is also provided with a first; the first sliding sleeve is sleeved on the periphery of the front end of the first drill body, the inner wall of the first sliding sleeve is provided with a first connecting inner key, the first connecting inner key is matched with the first drill body connecting key to enable the first drill body and the first sliding sleeve to form fixed connection in the circumferential direction and to be in sliding connection in the axial direction, the front end face of the first sliding sleeve is also provided with first sliding sleeve end face teeth, and the first sliding sleeve end face teeth are meshed with the first impact block end face teeth; the periphery of the first drill body is further sleeved with a first elastic body, and the first elastic body is arranged between the first sliding sleeve and the boss of the first drill body.

Preferably, the chuck with the impact function comprises a bearing pad, a bearing, a nut sleeve, a front sleeve, a clamping jaw and a second drill body, wherein the clamping jaw is arranged in an equant inclined hole of the second drill body, the nut is arranged in a nut groove of the second drill body, threads of the nut and the clamping jaw form a thread transmission mechanism, the nut sleeve is fixedly connected with the nut, the front sleeve is connected with the nut sleeve in a key way, the impact device comprises a second impact block, a second sliding sleeve, a second shaft sleeve, a second elastic body, a second thrust steel ball and a second connecting steel ball, a second shaft end hole is formed in the front end of the second drill body, the second thrust steel ball is arranged in the second shaft end hole, a second connecting steel ball groove is formed in the front end of the second drill body along the circumferential direction of the second drill body, a second impact bulge is further formed in the second drill body along the radial extension direction of the second drill body, and second drill body end face teeth are formed in the front end face of the second impact bulge; the second shaft sleeve is sleeved on the periphery of the front end of the second drill body and is in clearance fit with the second drill body, and a second shaft sleeve through hole is formed in the circumferential surface of the second shaft sleeve; a second inner threaded hole and a second impact block inner hole are respectively formed in the front end and the rear end of the second impact block, a second shaft sleeve is arranged in the second impact block inner hole and fixedly connected with the second impact block, a second impact block through hole which is communicated with the second impact block inner hole and corresponds to the second shaft sleeve through hole is formed in the rear end of the second impact block along the circumferential direction of the second impact block, a second connecting steel ball is arranged in the second impact block through hole, the second connecting steel ball is arranged in the second impact block through hole and is also arranged in the second shaft sleeve through hole and a second connecting steel ball groove, the width of the second connecting steel ball groove is larger than the diameter of the second connecting steel ball, a second thrust steel ball buffer hole corresponding to the second shaft end hole is formed in the bottom wall of the second impact block inner hole, and a second impact block connecting key is further arranged on the periphery of; the second sliding sleeve is sleeved on the periphery of the rear end of the second impact block, a second connecting inner key is arranged on the inner wall of the second sliding sleeve, the second connecting inner key is matched with the second impact block connecting key to enable the second impact block and the second sliding sleeve to form fixed connection in the circumferential direction and to be in sliding connection in the axial direction, second sliding sleeve end face teeth are further arranged on the rear end face of the second sliding sleeve, and the second sliding sleeve end face teeth are meshed with the second drill body end face teeth; the periphery of the second impact block is further sleeved with a second elastic body, and the second elastic body is arranged between the second sliding sleeve and the boss of the second impact block.

Preferably, the outer peripheral surface of the front end of the first impact block is provided with two or more even-numbered parallel tangent planes.

Preferably, the number of the first sleeve through holes is multiple.

Preferably, the outer peripheral surface of the front end of the second impact block is provided with two or more even-numbered parallel tangent planes.

Preferably, the number of the second bushing through holes is plural.

The utility model provides a from taking impact function chuck has following beneficial effect:

⑴ the utility model discloses make and do not take impact function electric drill to realize impact function, when the moment of torsion of first impact piece transmission is greater than the moment of torsion that first impact piece and first slip cap can transmit promptly, first impact piece terminal surface tooth produces relative rotation with first slip cap terminal surface tooth, first impact piece terminal surface tooth produces the impact to first slip cap terminal surface tooth, lead to first slip cap to produce axial vibration, this vibration is through first elastomer transmission to first brill body on, further make whole chuck produce the vibration, reach the purpose of assaulting, impact function's realization need not change the impact electric drill, only need change the drill chuck, and is convenient and fast, reach one and bore dual-purpose, the resource has been practiced thrift for the customer, and the cost is saved.

⑵ when the torque transmitted by the second impact block and the second sliding sleeve is larger than the torque transmitted by the second sliding sleeve and the second drill body, the end face teeth of the second sliding sleeve and the end face teeth of the second drill body rotate relatively, the end face teeth of the second drill body impact the end face teeth of the second sliding sleeve, so that the second sliding sleeve generates axial vibration, the vibration is transmitted to the second drill body through the second elastic body, further the whole chuck generates vibration, the purpose of impact can be achieved, the function of electric drill impact without impact function is realized, and one drill can be used for two purposes.

Drawings

Fig. 1 is an exploded view of embodiment 1 of the present invention;

FIG. 2 is a schematic view of a half-section structure of embodiment 1 of the present invention;

FIG. 3 is a perspective view of the first impact block shown in FIG. 2;

FIG. 4 is a perspective view of the first bushing shown in FIG. 2;

FIG. 5 is a perspective view of the first drill body shown in FIG. 2;

FIG. 6 is a schematic view in half section of the first drill body shown in FIG. 5;

FIG. 7 is a perspective view of the first sliding sleeve shown in FIG. 2;

FIG. 8 is a perspective view of the first resilient body shown in FIG. 2;

fig. 9 is an exploded view of embodiment 2 of the present invention;

fig. 10 is a schematic view of a half-section structure of embodiment 2 of the present invention;

FIG. 11 is a perspective view of the second impact block shown in FIG. 10;

FIG. 12 is a schematic view in half section of the second impact block shown in FIG. 11;

FIG. 13 is a perspective view of the second bushing shown in FIG. 10;

FIG. 14 is a perspective view of the second drill body shown in FIG. 10;

figure 15 is a perspective view of the second sliding sleeve shown in figure 10;

fig. 16 is a perspective view of the second elastic body shown in fig. 10.

The labels in the figure are: 1. bearing pad, 2, bearing, 3, nut, 4, nut sleeve, 5, front sleeve, 6, clamping jaw, 7, first drill body, 8, first impact block, 9, first sliding sleeve, 10, first shaft sleeve, 11, first elastic body, 12, first thrust steel ball, 13, first connecting steel ball, 14, first internal threaded hole, 15, first shaft end hole, 16, first impact bulge, 17, first impact block end face tooth, 18, first connecting steel ball groove, 19, first shaft sleeve through hole, 20, first drill body inner hole, 21, first drill body through hole, 22, first thrust steel ball buffer hole, 23, first drill body connecting key, 24, first connecting inner key, 25, first sliding sleeve end face tooth, 26, second drill body, 27, second impact block, 28, second sliding sleeve, 29, second shaft sleeve, 30, second elastic body, 31, second thrust steel ball, 32, second thrust steel ball connecting steel ball, 33. the second shaft end hole, 34, a second connecting steel ball groove, 35, a second impact bulge, 36, a second drill body end face tooth, 37, a second shaft sleeve through hole, 38, a second internal threaded hole, 39, a second impact block inner hole, 40, a second impact block through hole, 41, a second thrust steel ball buffer hole, 42, a second impact block connecting key, 43, a second connecting internal key and 44, a second sliding sleeve end face tooth.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments to assist understanding of the invention. The method used in the utility model is a conventional method if no special regulation is provided; the raw materials and the apparatus used are, unless otherwise specified, conventional commercially available products.

Example 1:

the front and rear in this embodiment refer to the direction from the first impact block 8 to the first drill body 7.

As shown in fig. 1-2, the utility model provides a chuck with impact function, which comprises a bearing pad 1, a bearing 2, a nut 3, a nut sleeve 4, a front sleeve 5, a clamping jaw 6 and a first drill body 7, wherein three clamping jaws 6 are respectively arranged in three equant inclined holes of the first drill body 7, the nut 3 is arranged in a nut groove of the first drill body 7, the nut 3 is matched with the clamping jaw 6 by screw threads, the clamping jaw 6 is driven by the rotation of the nut 3 to extend outwards out of a clamping tool or return the clamping jaw 6, when the tool is clamped, the front sleeve 5 is held and relatively rotated, the nut sleeve 4 which is connected with the front sleeve 5 drives the nut 3 to rotate relative to the clamping jaw 6 in the first drill body 7, the clamping jaw 6 moves forwards in the inclined hole of the first drill body 7 by the screw transmission of the nut 3 and the clamping jaw 6, the relationship between the structure and the parts connected with the structure is the same as the prior art, belongs to the prior art and is not described in detail herein.

As shown in fig. 1-3, the utility model also comprises an impact device, which comprises a first impact block 8, a first sliding sleeve 9, a first shaft sleeve 10, a first elastic body 11, a first thrust steel ball 12 and a first connecting steel ball 13, wherein the inner parts of the front and back ends of the first impact block 8 are respectively provided with a first internal thread hole 14 and a first shaft end hole 15, the first internal thread hole 14 is connected with the main shaft of the electric drill through threads, the first thrust steel ball 12 is arranged in the first shaft end hole 15, the end part of the first shaft end hole 15 is inwards recessed, the first thrust steel ball 12 is clamped in the first shaft end hole 15 and can freely rotate but not fall off, a first impact bulge 16 is arranged on a first impact block 8 at the periphery of the first internal threaded hole 14 along the radial extension direction of the first impact bulge, a first impact block end surface tooth 17 is arranged on the rear end surface of the first impact bulge 16, and a first connecting steel ball groove 18 is arranged on the first impact block 8 at the rear end of the first impact bulge 16; the peripheral face of the front end of the first impact block 8 is also provided with two or more even parallel tangent planes, and when the first impact block 8 is connected with a spindle of an electric drill, the first impact block 8 is conveniently clamped, so that the first impact block 8 is more easily connected with the spindle of the electric drill in a tight manner.

As shown in fig. 1, 2 and 4, the first sleeve 10 is disposed at the rear of the first impact block 8, and has a plurality of, preferably three, equally spaced first sleeve through holes 19 on its circumferential surface, and the first sleeve 10 and the first impact block 8 are in clearance fit and can rotate freely relative to each other.

From the point of view of figures 1 and 2, as shown in fig. 5 and 6, a first drill body inner hole 20 is formed in the front end of the first drill body 7, the first shaft sleeve 10 is arranged in the first drill body inner hole 20 and fixedly connected with the first drill body 7, the rear portion of the first impact block 8 is arranged in the first shaft sleeve 10 and also arranged in the first drill body inner hole 20, a first drill body through hole 21 which is communicated with the first drill body inner hole 20 and corresponds to the first shaft sleeve through hole 19 is formed in the front end of the first drill body 7 along the circumferential direction, a first connecting steel ball 13 is arranged in the first drill body through hole 21, the first connecting steel ball 13 is arranged in the first drill body through hole 21 and is arranged in the first shaft sleeve through hole 19 and the first connecting steel ball groove 18, so that the axial connection between the first impact block 8 and the first drill body 7 is realized, a first steel ball thrust buffer hole 22 corresponding to the first shaft end hole 15 is formed in the bottom wall of the first drill body inner hole 20, and a first drill body connecting key 23 is further arranged on the periphery of the front end of the first drill body 7.

As shown in fig. 1, 2 and 7, the first sliding sleeve 9 is sleeved on the periphery of the front end of the first drill body 7, the inner wall of the first sliding sleeve is provided with a first connection inner key 24, the first connection inner key 24 is matched with the first drill body connection key 23 to enable the first drill body 7 and the first sliding sleeve 9 to form a fixed connection in the circumferential direction and to be in sliding connection in the axial direction, when the first sliding sleeve 9 rotates, the first drill body 7 is driven to rotate together through the meshing of the first connection inner key 24 and the first drill body connection key 23, the first sliding sleeve 9 can move axially on the periphery of the first drill body 7, the first sliding sleeve 9 tightly presses the first connection steel ball 13 in the first connection steel ball groove 18 of the first impact block 8, the width of the first connection steel ball groove 18 is larger than the diameter of the first connection steel ball 13, and the first impact block 8 can move axially a little in the first shaft sleeve 10; the preceding terminal surface of first sliding sleeve 9 still is equipped with first sliding sleeve terminal surface tooth 25, and first sliding sleeve terminal surface tooth 25 meshes with first impact piece terminal surface tooth 17 mutually, plays the effect of transmission moment of torsion, and when the electric drill main shaft drove first impact piece 8 and rotates, first impact piece 8 drove first sliding sleeve 9 and rotates, and then drove first brill body 7 and rotate.

As shown in fig. 1, 2, and 8, a first elastic body 11 is further sleeved on the periphery of the first drill body 7 behind the first sliding sleeve 9, and the first elastic body 11 is arranged between the first sliding sleeve 9 and a boss in the middle of the first drill body 7 to transmit vibration.

The working principle of the embodiment is as follows:

as shown in fig. 2, when the electric drill is operated, the main shaft of the electric drill drives the first impact block 8 to rotate, the first impact block 8 drives the first sliding sleeve 9 to rotate through the meshing of the first impact block end face teeth 17 and the first sliding sleeve end face teeth 25, the first sliding sleeve 9 drives the first drill body 7 to rotate through the meshing of the first connecting inner key 24 and the first drill body connecting key 23, when the torque transmitted by the first impact block 8 is greater than the torque transmitted by the first impact block 8 and the first sliding sleeve 9, the first impact block end face teeth 17 and the first sliding sleeve end face teeth 25 rotate relatively, the first connecting steel ball 13 makes a circular motion along the first connecting steel ball groove 18, the first connecting steel ball 13 and the first shaft sleeve 10 jointly function as a sliding bearing, and at the same time, the first impact block end face teeth 17 impact the first sliding sleeve end face teeth 25 to cause the first sliding sleeve 9 to generate an axial vibration, and the axial vibration is transmitted to the first drill body 7 through the first elastic body 11, so that the whole chuck is further vibrated, the impact function of the whole chuck is realized, and in the downward impact process, the first thrust steel ball 12 enters the first thrust steel ball buffer hole 22 to play a role of an end face bearing.

Example 2:

the front and rear in this embodiment refer to the direction from the second impact block 27 to the second drill body 26.

As shown in fig. 9, 10 and 14, the second drill body 26 included in this embodiment has the same rear half portion as the first drill body 7 in embodiment 1, and the principle of the clamping tool is the same, and details are not described here, the difference between this embodiment and embodiment 1 is that, in this embodiment, the impact device in the present invention includes a second impact block 27, a second sliding sleeve 28, a second bushing 29, a second elastic body 30, a second thrust steel ball 31, and a second connecting steel ball 32, a second shaft end hole 33 is provided inside the front end of the second drill body 26, the second thrust steel ball 31 is provided in the second shaft end hole 33, the end of the second shaft end hole 33 is recessed inward, the second thrust steel ball 31 is engaged in the second shaft end hole 33 to be freely rotatable but not to fall off, a second connecting steel ball groove 34 is provided at the front end of the second drill body 26 along the circumferential direction thereof, a second impact protrusion 35 is provided on the second drill body 26 at the rear end of the second connecting steel ball groove 34 along the radial extending direction thereof, the front end face of the second impact projection 35 is provided with second drill body end face teeth 36.

As shown in fig. 9, 10 and 13, the second bushing 29 is sleeved on the outer periphery of the front end of the second drill 26, and a plurality of, preferably three, equally divided second bushing through holes 37 are formed on the circumferential surface thereof, and the second bushing 29 and the second drill 26 are in clearance fit and can rotate freely relative to each other;

as shown in fig. 9 to 12, a second internal threaded hole 38 and a second impact block inner hole 39 are respectively arranged inside the front end and the rear end of the second impact block 27, the second internal threaded hole 38 is connected with the main shaft of the electric drill through threads and is used for providing power for the rotation of the whole chuck, the second bushing 29 is arranged in the second impact block inner hole 39 and is fixedly connected with the second impact block 27, the rear part of the second drill body 26 is arranged in the second bushing 29 and is also arranged in the second impact block inner hole 39, the rear end of the second impact block 27 is provided with a second impact block through hole 40 which is communicated with the second impact block inner hole 39 and corresponds to the second bushing through hole 37 along the circumferential direction, a second connecting steel ball 32 is arranged in the second impact block through hole 40 and is simultaneously arranged in the second bushing through hole 37 and the second connecting steel ball groove 34, so as to realize the axial connection between the second impact block 27 and the second drill body 26, the bottom wall of the second impact block inner hole 39 is provided with a second thrust steel ball buffer hole 41 corresponding to the second shaft end hole 33, and the periphery of the rear end of the second impact block 27 is also provided with a second impact block connecting key 42.

As shown in fig. 9, 10 and 15, the second sliding sleeve 28 is sleeved on the rear end periphery of the second impact block 27, the inner wall of the first impact block is provided with a first connecting inner key 43, the first connecting inner key 43 is matched with the first impact block connecting key 42 to ensure that the first impact block 27 and the first sliding sleeve 28 form a fixed connection in the circumferential direction and a sliding connection in the axial direction, when the second impact block 27 rotates, the second sliding sleeve 28 is driven to rotate together by the engagement of the second impact block connecting key 42 and the second connecting inner key 43, the second sliding sleeve 28 can axially move around the second impact block 27, the second connecting steel ball 32 is pressed tightly in a second connecting steel ball groove 34 of the second drill body 26 by the second sliding sleeve 28, and the width of the second connecting steel ball groove 34 is larger than the diameter of the second connecting steel ball 32, so that the second drill body 26 can slightly axially move in the second shaft sleeve 29; the rear end face of the second sliding sleeve 28 is also provided with second sliding sleeve end face teeth 44, the second sliding sleeve end face teeth 44 are meshed with the second drill body end face teeth 36 to play a role in transmitting torque, and when the electric drill spindle drives the second impact block 27 to rotate, the second impact block 27 drives the second sliding sleeve 28 to rotate, so as to drive the second drill body 26 to rotate.

As shown in fig. 9, 10, and 16, a second elastic body 30 is further fitted around the outer periphery of the second impact block 27 in front of the second sliding sleeve 28, and the second elastic body 30 is provided between the second sliding sleeve 28 and a boss at the front end of the second impact block 27.

The working principle of the embodiment is as follows:

as shown in fig. 10, the working principle of this embodiment is different from that of embodiment 1, in this embodiment, during the operation of the electric drill, the electric drill spindle drives the second impact block 27 to rotate, the second impact block 27 drives the second sliding sleeve 28 to rotate through the engagement of the second impact block connection key 42 and the second connection inner key 43, the second sliding sleeve end face teeth 44 drive the second drill body end face teeth 36 engaged therewith to rotate so as to realize the rotation of the second drill body 26, when the torque transmitted by the second impact block 27 is greater than the torque transmitted by the second sliding sleeve 28 and the second drill body 26, the second sliding sleeve end face teeth 44 and the second drill body end face teeth 36 rotate relatively, the second connection steel balls 32 make a circular motion along the second connection steel ball grooves 34, the second shaft sleeve 29 and the second connection steel balls 32 together function as sliding bearings, and at the same time, the second drill body end face teeth 36 impact the second sliding sleeve end face teeth 44, the second sliding sleeve 28 is caused to generate axial vibration, and the axial vibration is transmitted to the second drill body 26 through the second elastic body 30, so that the whole chuck is further vibrated, the impact function of the electric drill is realized, and in the downward impact process, the second thrust steel ball 31 enters the second thrust steel ball buffer hole 41 to play a role of an end face bearing.

To sum up, the utility model discloses both can satisfy ordinary electric drill requirement, can produce impact function again, realize impact function and the seamless connection who does not take impact function, reduce workman's intensity of labour, improve work efficiency.

In the description of the present invention, it should be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

However, the above description is only an embodiment of the present invention, and the scope of the present invention should not be limited thereto, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.

Claims

1. The utility model provides a from area impact function chuck, includes bearing pad, bearing, screw cover, front cover, clamping jaw, the first brill body, the clamping jaw is installed in the partition inclined hole of the first brill body, the screw is located the screw inslot of the first brill body, the screw with the screw thread of clamping jaw forms screw thread drive mechanism, the screw cover with screw fixed connection, the front cover with screw cover key-type connection, its characterized in that, it still includes impact device, impact device includes first impact piece, first slip cap, first axle sleeve, first elastomer, first thrust steel ball, first connecting steel ball, the inside at both ends is equipped with first internal thread hole and first axle end hole respectively around the first impact piece, be equipped with in the first axle end hole first thrust steel ball, first impact piece is equipped with first impact arch along its radial extending direction, the rear end face of the first impact bulge is provided with first impact block end face teeth, and the first impact block is also provided with a first connecting steel ball groove; the first shaft sleeve is sleeved at the rear part of the first impact block and is in clearance fit with the first impact block, and a first shaft sleeve through hole is formed in the circumferential surface of the first shaft sleeve; a first drill body inner hole is formed in the front end of the first drill body, the first shaft sleeve is arranged in the first drill body inner hole and is fixedly connected with the first drill body, a first drill body through hole which is communicated with the first drill body inner hole and corresponds to the first shaft sleeve through hole is formed in the front end of the first drill body along the circumferential direction of the first drill body, the first connecting steel ball is arranged in the first drill body through hole, the first connecting steel ball is arranged in the first shaft sleeve through hole and the first connecting steel ball groove, the width of the first connecting steel ball groove is larger than the diameter of the first connecting steel ball, a first thrust steel ball buffer hole corresponding to the first shaft end hole is formed in the bottom wall of the first drill body inner hole, and a first drill body connecting key is further arranged on the periphery of the front end of the first drill body; the first sliding sleeve is sleeved on the periphery of the front end of the first drill body, a first connecting inner key is arranged on the inner wall of the first sliding sleeve, the first connecting inner key is matched with the first drill body connecting key to enable the first drill body and the first sliding sleeve to be fixedly connected in the circumferential direction and to be in sliding connection in the axial direction, first sliding sleeve end face teeth are further arranged on the front end face of the first sliding sleeve, and the first sliding sleeve end face teeth are meshed with the first impact block end face teeth; the periphery of the first drill body is further sleeved with the first elastic body, and the first elastic body is arranged between the first sliding sleeve and the boss of the first drill body.

2. The self-contained impact chuck according to claim 1, wherein said first impact block has two or more even-numbered parallel tangential planes on its outer peripheral surface at its front end.

3. The self-contained percussion chuck according to claim 1, wherein the number of said first sleeve through holes is plural.

4. A chuck with a self-impact function comprises a bearing pad, a bearing, a nut sleeve, a front sleeve, a clamping jaw and a second drill body, wherein the clamping jaw is installed in an equant inclined hole of the second drill body, the nut is arranged in a nut groove of the second drill body, the nut and a thread of the clamping jaw form a thread transmission mechanism, the nut sleeve is fixedly connected with the nut, the front sleeve is in key connection with the nut sleeve, the chuck is characterized by further comprising an impact device, the impact device comprises a second impact block, a second sliding sleeve, a second shaft sleeve, a second elastic body, a second thrust steel ball and a second connection steel ball, a second shaft end hole is formed in the inner part of the front end of the second drill body, the second thrust steel ball is arranged in the second shaft end hole, a second connection steel ball groove is formed in the front end of the second drill body along the circumferential direction of the second drill body, and a second impact bulge is further arranged in the radial extension direction of the second drill body, the front end face of the second impact bulge is provided with second drill body end face teeth; the second shaft sleeve is sleeved on the periphery of the front end of the second drill body and is in clearance fit with the second drill body, and a second shaft sleeve through hole is formed in the circumferential surface of the second shaft sleeve; a second internal thread hole and a second impact block inner hole are respectively arranged in the front end and the rear end of the second impact block, the second shaft sleeve is arranged in the inner hole of the second impact block and is fixedly connected with the second impact block, the rear end of the second impact block is provided with a second impact block through hole which is communicated with the inner hole of the second impact block and corresponds to the second shaft sleeve through hole along the circumferential direction, the second connecting steel ball is arranged in the second impact block through hole, the second connecting steel ball is arranged in the second impact block through hole and is simultaneously arranged in the second shaft sleeve through hole and the second connecting steel ball groove, the width of the second connecting steel ball groove is larger than the diameter of the second connecting steel ball, the bottom wall of the inner hole of the second impact block is provided with a second thrust steel ball buffer hole corresponding to the second shaft end hole, and the periphery of the rear end of the second impact block is also provided with a second impact block connecting key; the second sliding sleeve is sleeved on the periphery of the rear end of the second impact block, a second connecting inner key is arranged on the inner wall of the second sliding sleeve, the second connecting inner key is matched with the second impact block connecting key to enable the second impact block and the second sliding sleeve to be fixedly connected in the circumferential direction and to be in sliding connection in the axial direction, second sliding sleeve end face teeth are further arranged on the rear end face of the second sliding sleeve, and the second sliding sleeve end face teeth are meshed with the second drill body end face teeth; the periphery of the second impact block is further sleeved with a second elastic body, and the second elastic body is arranged between the second sliding sleeve and a boss of the second impact block.

5. The self-contained impact chuck according to claim 4, wherein said second impact block has two or more even-numbered parallel tangential planes on its outer peripheral surface at its front end.

6. The self-contained percussion function chuck according to claim 4, wherein the number of the second bushing through holes is plural.