CN110064782B - Chuck with impact function - Google Patents
Chuck with impact function Download PDFInfo
- Publication number
- CN110064782B CN110064782B CN201910349406.3A CN201910349406A CN110064782B CN 110064782 B CN110064782 B CN 110064782B CN 201910349406 A CN201910349406 A CN 201910349406A CN 110064782 B CN110064782 B CN 110064782B
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- hole
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- impact
- sleeve
- steel ball
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- 229910000831 Steel Inorganic materials 0.000 claims description 67
- 239000010959 steel Substances 0.000 claims description 67
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000000806 elastomer Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 241001074085 Scophthalmus aquosus Species 0.000 claims 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/12—Adapters for drills or chucks; Tapered sleeves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The invention provides a chuck with an impact function, which 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 of the electric drill without 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
Technical Field
The invention relates to the technical field of clamps, in particular to a chuck with an impact function.
Background
The electric drill in the current market can be divided into a direct current electric drill and an alternating current electric drill according to whether the electric drill is provided with impact or not and can be divided into an electric drill without impact function, a drill chuck used for the electric drill generally comprises a drill body, clamping jaws, a nut sleeve, a bearing pad, a front sleeve and a rear sleeve, wherein the three clamping jaws are respectively arranged in three equally-divided inclined holes of the drill body, the nut is arranged 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 a threaded hole or a taper hole is formed in the rear part of the drill body; when the electric drill is installed and used, the threaded hole or the taper hole at the rear part of the drill body is connected with the main shaft of the electric drill, the main shaft of the electric drill rotates to drive the drill body to drive the three clamping jaws and the clamped tool to synchronously rotate for operation, but when the electric drill meets the work in certain high-strength operation fields, the electric drill without the impact function does not have the impact function to finish the operation, the impact electric drill must be replaced for operation, if a user without the impact electric drill does not have the impact electric drill, the user must purchase the impact electric drill again to finish the operation, the burden of the user is increased in an intangible way, and the production cost of the user is increased.
Disclosure of Invention
The invention aims to solve the defects of the technology and provides a chuck with an impact function, which enables an electric drill without the impact function to realize the impact function.
The invention provides a chuck with an impact function, which comprises a bearing pad, a bearing, a nut sleeve, a front sleeve, clamping jaws and a first drill body, wherein the clamping jaws are arranged in equally-divided inclined holes of the first drill body; 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, the first shaft sleeve is arranged in the first drill body inner hole and 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, the first drill body through hole is internally provided with a first connecting steel ball, the first connecting steel ball is arranged in the first drill body through hole and simultaneously 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, the bottom wall of the first drill body inner hole is provided with a first thrust steel ball buffer hole which corresponds to the first shaft end hole, and the periphery of the front end of the first drill body is also provided with a first drill body connecting key; the first sliding sleeve is sleeved on the outer 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, and the first connecting inner key is matched with the first drill body connecting key to enable the first drill body to form fixed connection with the first sliding sleeve in the circumferential direction and to be in sliding connection in the axial direction; the periphery of the first drill body is also 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 equally-divided inclined hole of the second drill body, the nut is arranged in a nut groove of the second drill body, a screw thread transmission mechanism is formed by the screw nut and threads of the clamping jaw, the nut sleeve is fixedly connected with the nut, the front sleeve is in key connection with the nut sleeve, the chuck further comprises an impact device, the impact device comprises a second impact block, a second sliding sleeve, a second elastomer, 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, a 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 protrusion is further formed in the radial extending direction of the second drill body, and the front end face of the second impact protrusion is provided with second drill body end face teeth; the second 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 sleeve through hole is formed in the periphery of the second sleeve; the second impact block is internally provided with a second internal threaded hole and a second impact block inner hole respectively at the front end and the rear end, the second shaft sleeve is arranged in the second impact block inner hole and forms fixed connection 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 second impact block inner hole and corresponds to the second shaft sleeve through hole along the circumferential direction, the second impact block through hole is internally provided with a second connecting steel ball, the second connecting steel ball is arranged in the second impact block through hole and 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 second impact block inner hole is provided with a second thrust steel ball buffer hole which corresponds 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, and the second connecting inner key is matched with the second impact block connecting key to enable the second impact block to form fixed connection with the second sliding sleeve in the circumferential direction and to be in sliding connection in the axial direction, a second sliding sleeve end face tooth is further arranged on the rear end face of the second sliding sleeve, and the second sliding sleeve end face tooth is meshed with the second drill body end face tooth; the second impact block is also 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 peripheral surface of the front end of the first impact block is provided with two or more even number of parallel tangential planes.
Preferably, the number of the first shaft sleeve through holes is plural.
Preferably, the peripheral surface of the front end of the second impact block is provided with two or more even number of parallel tangential planes.
Preferably, the number of the second sleeve through holes is a plurality.
The invention provides a chuck with an impact function, which has the following beneficial effects:
⑴ According to the invention, the electric drill without the impact function realizes the impact function, namely 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 first impact block end face tooth and the first sliding sleeve end face tooth rotate relatively, the first impact block end face tooth impacts the first sliding sleeve end face tooth, so that the first sliding sleeve generates axial vibration, the vibration is transmitted to the first drill body through the first elastic body, the whole chuck further generates vibration, the impact purpose is achieved, the impact function is realized without replacing the impact electric drill, only the drill chuck is required to be replaced, the purposes of dual purposes of one drill are achieved, resources are saved for customers, 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, the whole chuck further generates vibration, the impact purpose can be achieved, the impact function of the electric drill without the impact function is realized, and the drill is dual-purpose.
Drawings
FIG. 1 is an exploded view of example 1 of the present invention;
FIG. 2 is a schematic view showing a semi-sectional 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 sleeve 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 of the first drill body shown in FIG. 5 in semi-section;
FIG. 7 is a perspective view of the first slip cap shown in FIG. 2;
FIG. 8 is a perspective view of the first elastomer shown in FIG. 2;
FIG. 9 is an exploded view of embodiment 2 of the present invention;
FIG. 10 is a schematic view showing a semi-sectional 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 of the second impact block shown in FIG. 11 in semi-section;
FIG. 13 is a perspective view of the second sleeve shown in FIG. 10;
FIG. 14 is a perspective view of the second bit body shown in FIG. 10;
FIG. 15 is a perspective view of the second slip cap shown in FIG. 10;
Fig. 16 is a perspective view of the second elastomer shown in fig. 10.
The marks in the figure: 1. bearing pad 2, bearing 3, nut 4, nut sleeve 5, front sleeve 6, jaw 7, first drill body 8, first impact block 9, first sliding sleeve 10, first bushing 11, first elastomer 12, first thrust ball 13, first connecting ball 14, first internal threaded bore 15, first shaft end bore 16, first impact boss 17, first impact block end face tooth 18, first connecting ball recess 19, first bushing through hole 20, first drill body inner bore 21, first drill body through hole 22, first thrust ball buffer hole 23, first drill body connecting key 24, first connecting internal key, the first and second sliding sleeve end face teeth, 26, 27, second impact block, 28, second sliding sleeve, 29, second sleeve, 30, second elastomer, 31, second thrust ball, 32, second connecting ball, 33, second shaft end hole, 34, second connecting ball groove, 35, second impact boss, 36, second drill body end face tooth, 37, second sleeve through hole, 38, second internal thread hole, 39, second impact block inner hole, 40, second impact block through hole, 41, second thrust ball buffer hole, 42, second impact block connecting key, 43, second connecting internal key, 44, second sliding sleeve end face tooth.
Detailed Description
The invention will be further described with reference to the drawings and specific examples to aid in understanding the context of the invention. The method used in the invention is a conventional method unless specified otherwise; the raw materials and devices used, unless otherwise specified, are all conventional commercial products.
Example 1:
the front and rear directions in this embodiment refer to the directions from the first impact block 8 to the first drill body 7.
As shown in fig. 1 to 2, the present invention 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 the three clamping jaws 6 are respectively installed in three equally-divided inclined holes of the first drill body 7, the nut 3 is installed in a nut groove of the first drill body 7, the nut 3 is matched with threads of the clamping jaws 6, the clamping jaws 6 are driven to extend outwards to clamp a tool or retract the clamping jaws 6 through rotation of the nut 3, when the tool is clamped, the front sleeve 5 is held by hand and rotated relatively, the nut sleeve 4 connected with the front sleeve 5 drives the nut 3 to rotate relative to the clamping jaws 6 in the first drill body 7, and the clamping jaws 6 move forwards in the inclined holes of the first drill body 7 through the threads of the nut 3 and the clamping jaws 6, so that the structure and the relation between the structure and the connection parts are the structure are the same as the prior art, and the relation of the structure is not described in detail herein.
As shown in fig. 1 to 3, the invention further comprises an impact device, the impact device 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 a first internal threaded hole 14 and a first shaft end hole 15 are respectively arranged in the front end and the rear end of the first impact block 8, the first internal threaded hole 14 is connected with a main shaft of an electric drill through threads and is used for providing power for the rotation of the whole chuck, 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 concave, the first thrust steel ball 12 is clamped in the first shaft end hole 15 and can freely rotate but does not fall off, a first impact bulge 16 is arranged on the first impact block 8 at the periphery of the first internal threaded hole 14 along the radial extension direction of the first impact block, a first impact block end face tooth 17 is arranged on the rear end face of the first impact block 16, and a first connecting groove 18 is arranged on the first impact block 8 at the rear end of the first impact bulge 16; the front end outer peripheral surface of the first impact block 8 is also provided with two or more even number parallel tangential planes, when the first impact block 8 is connected with the main shaft of the electric drill, the first impact block 8 is convenient to clamp, so that the first impact block 8 is more easily and tightly connected with the main shaft of the electric drill.
As shown in fig. 1,2 and 4, the first shaft sleeve 10 is sleeved at the rear part of the first impact block 8, and a plurality of, preferably three, equally divided first shaft sleeve through holes 19 are formed in the circumferential surface of the first shaft sleeve 10, and the first shaft sleeve 10 and the first impact block 8 are in clearance fit and can rotate relatively freely.
As shown in fig. 1, 2, 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 forms fixed connection with the first drill body 7, the rear part of the first impact block 8 is arranged in the first shaft sleeve 10 and is 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 also arranged in the first shaft sleeve through hole 19 and the first connecting steel ball groove 18, axial connection of the first impact block 8 and the first drill body 7 is realized, a first thrust steel ball punched hole 22 which corresponds to the first shaft end hole 15 is formed in the first drill body inner hole 20, and a first drill body connecting key 23 is also formed 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 outer periphery of the front end of the first drill body 7, the inner wall of the first sliding sleeve 9 is provided with a first connecting inner key 24, the first connecting inner key 24 is matched with the first drill body connecting key 23 to enable the first drill body 7 and the first sliding sleeve 9 to form 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 engagement of the first connecting inner key 24 and the first drill body connecting key 23, the first sliding sleeve 9 can axially move on the outer periphery of the first drill body 7, the first sliding sleeve 9 compresses the first connecting steel ball 13 in the first connecting steel ball groove 18 of the first impact block 8, and the width of the first connecting steel ball groove 18 is larger than the diameter of the first connecting steel ball 13, so that the first impact block 8 can slightly axially move in the first shaft sleeve 10; the front end face of the first sliding sleeve 9 is also provided with a first sliding sleeve end face tooth 25, the first sliding sleeve end face tooth 25 is meshed with the first impact block end face tooth 17 to play a role in transmitting torque, and when the electric drill main shaft drives the first impact block 8 to rotate, the first impact block 8 drives the first sliding sleeve 9 to rotate, and then the first drill body 7 is driven to rotate.
As shown in fig. 1,2 and 8, the outer periphery of the first drill body 7 behind the first sliding sleeve 9 is further sleeved with a first elastic body 11, 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 play a role in transmitting vibration.
The working principle of the embodiment is as follows:
As shown in fig. 2, when the electric drill works, the electric drill spindle drives the first impact block 8 to rotate, the first impact block 8 drives the first sliding sleeve 9 to rotate through the engagement of the first impact block end face tooth 17 and the first sliding sleeve end face tooth 25, the first sliding sleeve 9 drives the first drill body 7 to rotate through the engagement 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 larger than the torque transmitted by the first impact block 8 and the first sliding sleeve 9, the first impact block end face tooth 17 and the first sliding sleeve end face tooth 25 relatively rotate, the first connecting steel ball 13 moves circumferentially along the first connecting steel ball groove 18, the first connecting steel ball 13 and the first shaft sleeve 10 jointly play a role of a sliding bearing, meanwhile, the first impact block end face tooth 17 impacts the first sliding sleeve end face tooth 25, the first sliding sleeve 9 generates axial vibration, the axial vibration is transmitted to the first drill body 7 through the first elastic body 11, the whole chuck is further vibrated, the whole chuck generates a whole impact function is realized, and the first connection steel ball 13 enters the first thrust bearing 22 in a downward impact process.
Example 2:
the front and rear directions in this embodiment refer to the directions 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 in this embodiment is the same as the second drill body 7 in embodiment 1 in the second drill body, the principle of the clamping tool is the same, and 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 sleeve 29, a second elastic body 30, a second thrust steel ball 31 and a second connection steel ball 32, a second axial hole 33 is provided in the front end of the second drill body 26, a second thrust steel ball 31 is provided in the second axial hole 33, the end of the second axial hole 33 is recessed inwards, the second thrust steel ball 31 is engaged in the second axial hole 33 and can rotate freely but does not fall off, a second connection steel ball groove 34 is provided in the front end of the second drill body 26 along the circumferential direction, a second impact protrusion 35 is provided on the second drill body 26 in the radial extension direction of the rear end of the second connection steel ball groove 34, and a second drill tooth 36 is provided on the front end surface of the second impact protrusion 35.
As shown in fig. 9, 10 and 13, the second sleeve 29 is sleeved on the outer periphery of the front end of the second drill body 26, and a plurality of, preferably three, equally-divided second sleeve through holes 37 are formed in the periphery of the second sleeve, and the second sleeve 29 and the second drill body 26 are in clearance fit and can rotate freely relatively;
As shown in fig. 9 to 12, the second inner threaded hole 38 and the second inner impact block hole 39 are respectively provided in the front and rear ends of the second impact block 27, the second inner threaded hole 38 is connected with the main shaft of the electric drill by threads, and is used for providing power for the rotation of the whole chuck, the second bushing 29 is provided in the second inner impact block hole 39 and is fixedly connected with the second impact block 27, the rear part of the second drill 26 is provided in the second bushing 29 and is also provided in the second inner impact block 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 sleeve through hole 37 along the circumferential direction, the second impact block through hole 40 is provided with a second connecting steel ball 32, the second connecting steel ball 32 is provided in the second impact block through hole 37 and the second connecting steel ball groove 34 at the same time as the second impact block through hole 40, the axial connection of the second impact block 27 and the second drill 26 is realized, the bottom wall of the second impact block inner hole 39 is provided with a second thrust steel ball 41 which corresponds to the second impact block hole 33, and the second impact block 42 is also provided with a second impact key 42 at the rear end of the second impact block 27.
As shown in fig. 9, 10 and 15, the second sliding sleeve 28 is sleeved on the outer periphery of the rear end of the second impact block 27, the inner wall of the second sliding sleeve 28 is provided with a second connecting inner key 43, the second connecting inner key 43 is matched with the second impact block connecting key 42 to enable the second impact block 27 and the second sliding sleeve 28 to form fixed connection in the circumferential direction and to be in sliding connection in the axial direction, when the second impact block 27 rotates, the second sliding sleeve 28 is driven to rotate together through 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 on the outer periphery of the second impact block 27, the second sliding sleeve 28 compresses the second connecting steel ball 32 in the second connecting steel ball groove 34 of the second drill body 26, 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 sleeve 29; the rear end face of the second sliding sleeve 28 is also provided with a second sliding sleeve end face tooth 44, the second sliding sleeve end face tooth 44 is meshed with the second drill body end face tooth 36 to play a role in transmitting torque, and when the electric drill main shaft drives the second impact block 27 to rotate, the second impact block 27 drives the second sliding sleeve 28 to rotate, and then the second drill body 26 is driven to rotate.
As shown in fig. 9, 10 and 16, the second elastic body 30 is further sleeved on the outer periphery of the second impact block 27 in front of the second sliding sleeve 28, and the second elastic body 30 is arranged between the second sliding sleeve 28 and the 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 difference between the working principle of this embodiment and that of embodiment 1 is that, in this embodiment, during the electric drill operation, 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 connecting key 42 and the second connecting inner key 43, the second sliding sleeve end face tooth 44 drives the second drill end face tooth 36 meshed with the second sliding sleeve end face tooth 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 tooth 44 and the second drill body end face tooth 36 relatively rotate, the second connecting steel ball 32 moves along the second connecting steel ball groove 34, the second sleeve 29 and the second connecting steel ball 32 jointly play a role of a sliding bearing, at the same time, the second drill end face tooth 36 impacts the second sliding sleeve end face tooth 44, so that the second sliding sleeve 28 generates axial vibration, and the axial vibration is transmitted to the second drill body 26 through the second elastic body 30, so that the whole torque is further generated, and the second impact force is transmitted to the second drill body 26, so as to realize the function of thrust force of the second impact ball 31, and impact ball function of the impact ball is buffered.
In conclusion, the invention can meet the requirements of common electric drills, can generate the impact function, realizes the seamless connection of the impact function and the non-impact function, reduces the labor intensity of workers and improves the working 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must be provided with specific orientations, be configured and operated in specific orientations, and thus are not to be construed as limiting the present invention.
However, the foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, so that the substitution of equivalent elements or equivalent variations and modifications within the scope of the invention are intended to fall within the scope of the claims.
Claims (6)
1. The utility model provides a chuck with impact function, includes bearing pad, bearing, screw cover, front cover, clamping jaw, first brill body, the clamping jaw is installed in the halving inclined hole of first brill body, the screw is located in the screw inslot of first brill body, the screw with the screw of clamping jaw forms screw drive mechanism, the screw cover with screw fixed connection, front cover with screw cover key connection, its characterized in that still includes impact device, impact device includes first impact block, first sliding sleeve, 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 block, be equipped with first arch along its radial extension direction in the first axle end hole, the rear end face of first impact arch is equipped with first impact block terminal surface tooth, still be equipped with first connecting steel ball on the first impact block recess; 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 first drill body is characterized in that 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 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 at the same time, 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 which corresponds to the first shaft end hole is formed in the bottom wall of the first drill body, 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 outer 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 to be fixedly connected with the first sliding sleeve in the circumferential direction and slidingly connected in the axial direction, a first sliding sleeve end face tooth is further arranged on the front end face of the first sliding sleeve, and the first sliding sleeve end face tooth is meshed with the first impact block end face tooth; the first elastic body is sleeved on the periphery of the first drill body, and the first elastic body is arranged between the first sliding sleeve and the boss of the first drill body.
2. The self-impacting collet as recited in claim 1, wherein the outer peripheral surface of the front end of the first impact block has two or more even-numbered parallel facets.
3. The self-impacting collet as recited in claim 1, wherein the first sleeve has a plurality of through holes.
4. 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 equally-divided inclined hole of the second drill body, the nut is arranged in a nut groove of the second drill body, the nut and threads 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, and the chuck is characterized by further comprising an impact device, the impact device comprises a second impact block, a second sliding sleeve, a second elastomer, a second thrust steel ball and a second connection steel ball, a second shaft end hole is formed in the front end of the second drill body, a second connection steel ball groove is formed in the second shaft end hole, a second impact protrusion is further formed in the second drill body along the radial extending direction of the second drill body, and a second drill body tooth is arranged on the front end face of the second impact protrusion; the second 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 sleeve through hole is formed in the periphery of the second sleeve; the inside at both ends is equipped with second internal thread hole and second impact piece hole respectively around the second impact piece, the second collar is located in the second impact piece hole and with second impact piece forms fixed connection, second impact piece rear end along its circumferencial direction be equipped with second impact piece hole that the second impact piece hole is linked together and with second collar through-hole corresponds, be equipped with in the second impact piece through-hole the second connection steel ball, the second connection steel ball locate in the second collar through-hole simultaneously in locating in second impact piece through-hole the second collar through-hole with in the second connection steel ball recess, the width of second connection steel ball recess is greater than the diameter of second connection steel ball, second impact piece hole diapire be equipped with the second thrust steel ball buffer hole that the second collar through-hole corresponds, second impact piece rear end periphery still is equipped with the second impact piece connecting key; the second sliding sleeve is sleeved on the outer 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 to be fixedly connected with the second sliding sleeve in the circumferential direction and slidingly connected in the axial direction, a second sliding sleeve end face tooth is further arranged on the rear end face of the second sliding sleeve, and the second sliding sleeve end face tooth is meshed with the second drill body end face tooth; the second elastic body is sleeved on the periphery of the second impact block, and the second elastic body is arranged between the second sliding sleeve and the boss of the second impact block.
5. The self-impacting collet as in claim 4, wherein the second impact block has two or more even number of parallel facets on the outer peripheral surface of the front end.
6. The self-impacting collet as recited in claim 4, wherein the second sleeve has a plurality of through holes.
Priority Applications (1)
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| CN201910349406.3A CN110064782B (en) | 2019-04-28 | 2019-04-28 | Chuck with impact function |
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| CN110064782B true CN110064782B (en) | 2024-04-19 |
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|---|---|---|---|---|
| TW454599U (en) * | 2000-08-05 | 2001-09-11 | Chum Power Machinery Corp | Chuck for power drill with intermittent heavy torque and striking vibration |
| CN201385303Y (en) * | 2009-01-11 | 2010-01-20 | 牛姣娥 | Rolling type impact device |
| CN103042507A (en) * | 2011-10-14 | 2013-04-17 | 罗伯特·博世有限公司 | Tool attachment |
| CN203371090U (en) * | 2013-07-19 | 2014-01-01 | 威海达旺五金制品有限责任公司 | Self-tightening and self-locking drill chuck |
| CN107138774A (en) * | 2017-06-23 | 2017-09-08 | 浙江三鸥机械股份有限公司 | A kind of Self-locking drill-chuck |
| CN210059919U (en) * | 2019-04-28 | 2020-02-14 | 山东威达机械股份有限公司 | Chuck with impact function |
-
2019
- 2019-04-28 CN CN201910349406.3A patent/CN110064782B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW454599U (en) * | 2000-08-05 | 2001-09-11 | Chum Power Machinery Corp | Chuck for power drill with intermittent heavy torque and striking vibration |
| CN201385303Y (en) * | 2009-01-11 | 2010-01-20 | 牛姣娥 | Rolling type impact device |
| CN103042507A (en) * | 2011-10-14 | 2013-04-17 | 罗伯特·博世有限公司 | Tool attachment |
| CN203371090U (en) * | 2013-07-19 | 2014-01-01 | 威海达旺五金制品有限责任公司 | Self-tightening and self-locking drill chuck |
| CN107138774A (en) * | 2017-06-23 | 2017-09-08 | 浙江三鸥机械股份有限公司 | A kind of Self-locking drill-chuck |
| CN210059919U (en) * | 2019-04-28 | 2020-02-14 | 山东威达机械股份有限公司 | Chuck with impact function |
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| Publication number | Publication date |
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| CN110064782A (en) | 2019-07-30 |
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