CN101081444A - Self-locking type clamping head of hand-locking drill - Google Patents
Self-locking type clamping head of hand-locking drill Download PDFInfo
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- CN101081444A CN101081444A CN 200710068086 CN200710068086A CN101081444A CN 101081444 A CN101081444 A CN 101081444A CN 200710068086 CN200710068086 CN 200710068086 CN 200710068086 A CN200710068086 A CN 200710068086A CN 101081444 A CN101081444 A CN 101081444A
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- locking
- drill
- nut
- adapter ring
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Abstract
The self-locking hand fastened drill chuck includes one drill body, clamping jaws, one rotating sleeve for axial location, one nut and one front ring body. The front ring body around the drill body can not rotate relatively to the drill body and has one slot in the back end; and one intermediate ring connected to the rotating sleeve can rotate together with the rotating sleeve and slide back and forth, and has one locking element fitting the slot in the front ring body. The front end of the nut includes one first part capable of separating the locking element from the slot, one second part capable of locking the locking element to the slot, and one transition part in between. The intermediate ring connected to the nut can rotate relatively to the nut. The drill chuck includes also one elastic element to press the intermediate ring toward the nut, and possesses reliable self-locking function.
Description
Technical field
The present invention relates to a kind of drill chuck, relate in particular to a kind of for example drill chuck on drilling machine, the electric drill of machining equipment and electric tool that is installed in.
Background technology
In the prior art, be provided with drill body, jaw, nut, rotatable rotary cover, back cover in the hand fastening drill clutch, rotary sleeve axially is positioned, three jaws are separately positioned in three inclined holes that are distributed on the drill body, adopt between nut and the jaw to be threaded, rotary sleeve directly or indirectly is connected with nut.During work, thereby driving the nut rotation by the operation rotary sleeve drives jaw and pass in and out in inclined hole and make the drill chuck clamping or the drilling tool that gets loose, the shortcoming of these drill chucks is: under the load that the is hit effect, the drill bit of jaw clamping is easily loosening to skid even comes off, and is difficult to keep the continuity of processing.
Summary of the invention
Technical problem to be solved by this invention provides a kind of loosening self-locking type clamping head of hand-locking drill that skids that is difficult under impact loading.For this reason, the present invention is by the following technical solutions: it comprises drill body, jaw, the rotary sleeve of axial location, nut, jaw is connected with nut thread, described drill chuck is provided with in the place ahead of nut around the drill body and the forward annular body that can not rotate with respect to drill body, the rear end face of described forward annular body is provided with teeth groove, described rotary sleeve is provided with rotary sleeve and connects and the adapter ring of rotation and the slip of energy front and back, described adapter ring is between nut and the forward annular body, described adapter ring has the locking element that cooperates with forward annular body teeth groove, the front end face of described nut is provided with the configuration that locking element and the forward annular body teeth groove of control adapter ring throw off and controls their and lock the configuration that cooperates and the transition face between configuration, described adapter ring is connected with nut and can rotates relative to nut between above-mentioned configuration, and described drill chuck is provided with the flexible member of adapter ring to the extruding of nut direction.Owing to adopt technical scheme of the present invention, the present invention can cooperate with forward annular body teeth groove by the locking element of adapter ring, realizes auto-lock function, even feasible being subjected under the impact loading, the drill bit of jaw clamping is difficult for loosening skidding and comes off.
Description of drawings
Fig. 1 partly cuts open schematic diagram for the embodiment of the invention 1.
Fig. 2 is the explosive view of embodiment 1.
Fig. 3 is the graphics of embodiment 1 adapter ring.
Fig. 4 partly cuts open schematic diagram for the embodiment of the invention 2.
Fig. 5 is the A-A cutaway view of Fig. 4 under the non-locking state.
Fig. 6 is the explosive view of embodiment 2.
Fig. 7 is the stereogram of embodiment 2 nuts.
Fig. 8 is the stereogram of embodiment 2 adapter rings.
Fig. 9 is the stereogram of embodiment 2 rotary sleeves.
Figure 10 is the stereogram of embodiment 2 forward annular bodies.
The specific embodiment
Embodiment 1
With reference to accompanying drawing 1-3.The present invention includes drill body 110, jaw 140, the rotary sleeve 120 of axial location, nut 130, jaw is connected with nut thread, described drill chuck is provided with in the place ahead of nut around the drill body and the forward annular body 160 that can not rotate with respect to drill body, the rear end face of described forward annular body is provided with teeth groove 161, described rotary sleeve is provided with rotary sleeve and connects and the adapter ring 150 of rotation and the slip of energy front and back, described adapter ring is between nut and the forward annular body, described adapter ring has the locking element that cooperates with forward annular body teeth groove, the front end face of described nut is provided with the configuration that locking element and the forward annular body teeth groove of control adapter ring throw off and controls their and lock configuration and the transition face between configuration 131 that cooperates, described adapter ring is connected with nut and can rotates relative to nut between above-mentioned configuration, and described drill chuck is provided with the flexible member 123 of adapter ring to the extruding of nut direction.
Described forward annular body 160 is located at the front end of drill body, is fixed and drill body motion relatively.On the adapter ring 150 with locking element be spring leaf 151, described spring leaf 151 has the locking position that cooperates with forward annular body teeth groove, this locking position is a spring leaf perk end 154.
The profile 134,133 that is configured as being in nut front end face differing heights that the locking element of described control adapter ring cooperates with their locking of configuration and control that forward annular body teeth groove is thrown off, profile 133 is for protruding from the step surface of nut front end face, control locking element and forward annular body teeth groove, profile 134 is a nut front end base plane.
In the present invention, link together into the part that as a whole part also is regarded as nut with nut, such as, with the nut sleeve of nut interference fit.
Present embodiment flexible member 123 adopts spring leaf, and when non-self-locking state, adapter ring is withstood by spring leaf 123, abut in profile 134 places, its perk end 154 does not fall into teeth groove 161, when being in self-locking state, spring leaf is on the step surface 133, and its perk end 154 falls into teeth groove 161.
In the present embodiment, the front end face of described nut is provided with protruding key 132, and described adapter ring has the transposition groove 152 that cooperates with protruding key.Like this, can increase the input of torsion, improve the clamping force of drill chuck by the cooperation of transposition groove 152 and protruding key 132.
In the present embodiment, described rotary sleeve inwall is provided with protruding key 121, and described adapter ring has the installation locating slot 153 that cooperates with protruding key.Described rotary sleeve is provided with the spring leaf mounting groove 122 of opening surface to adapter ring, and the installation end of described spring leaf 123 is located in the mounting groove 122.Like this, can make things convenient for the assembly work of adapter ring and spring leaf 123 and simplify their structure.
When operation, rotate rotary sleeve 120, because protruding key 121 and the cooperation that locating slot 153 is installed, adapter ring rotates with rotary sleeve, adapter ring is withstood by spring leaf 123, and the end face 521 of transposition groove 152 abuts in 131 places, inclined-plane, drives the nut rotation, jaw stretches out the jaw hole from drill body gradually, at this moment, perk end 154 does not also fall into teeth groove 161, when jaw is clamped instrument substantially, nut suspends rotation, be rotated further rotary sleeve, the end face of transposition groove 152 521 slips over from the inclined-plane, and collides with protruding key 132, at this moment, adapter ring is withstood on the step surface 133, and perk end 154 falls into teeth groove 161, and drill chuck enters self-locking state, be rotated further rotary sleeve, perk end 154 slips on the teeth groove surface, and protruding key 132 is driven by the end face 521 of transposition groove 152, and nut is rotated further, jaw is clamping tool more tightly, improves the clamping force to instrument to greatest extent.When self-locking state, unless the active rotation rotary sleeve, even drill chuck is subjected to shock loading, because of perk end 154 is oppositely withstood by teeth groove, nut can not become flexible, and jaw keeps the clamped condition to instrument.When getting loose instrument, the backward rotation rotary sleeve, adapter ring withdraws from step, removes self-locking state, and the end face 522 and the protruding key 132 of transposition groove 152 are collided, thereby can drive the nut reverse rotation, make jaw retreat the instrument of getting loose.
Embodiment 2
With reference to accompanying drawing 4-10.The present invention includes drill body 210, jaw 240, the rotary sleeve 220 of axial location, nut 230, jaw is connected with nut thread, described drill chuck is provided with in the place ahead of nut around the drill body and the forward annular body 270 that can not rotate with respect to drill body, the rear end face of described forward annular body is provided with teeth groove 271, described rotary sleeve is provided with rotary sleeve and connects and the adapter ring 250 of rotation and the slip of energy front and back, described adapter ring is between nut and the forward annular body, described adapter ring has the locking element that cooperates with forward annular body teeth groove, the front end face of described nut is provided with the configuration that locking element and the forward annular body teeth groove of control adapter ring throw off and controls their and lock configuration and the transition face between configuration 231 that cooperates, described adapter ring is connected with nut and can rotates relative to nut between above-mentioned configuration, and described drill chuck is provided with the flexible member 261 of adapter ring to the extruding of nut direction.
Described locking element is the tooth 252 on the adapter ring front end face.Described is spring with adapter ring to the flexible member 261 of nut direction extruding, and it mediates between ring and the forward annular body.
The groove 233 and 234 that is configured as being in nut front end face differing heights that the locking element of described control adapter ring cooperates with their locking of configuration and control that forward annular body teeth groove is thrown off.As shown in the figure, groove 233 after, groove 234 is preceding, the tooth of groove 233 control adapter rings is thrown off with forward annular body teeth groove, the tooth and the forward annular body teeth groove of groove 234 control adapter rings mesh.Described adapter ring body is provided with the ridge 254 with described groove fit.Described configuration also can adopt the profile that is in nut front end face differing heights, such as the front boss terrace and the back concave surface of nut front end.
Described adapter ring and nut can be by key and groove the multiple means such as cooperation of cooperation, projection and groove be connected.
Described rotary sleeve and adapter ring 250 cooperate by keyway and are connected, make adapter ring 250 can with rotary sleeve rotate and can before and after slide.Drawing reference numeral 221 is the key of rotary sleeve inwall, and 253 of drawing reference numeral are the groove that cooperates with key 221.
The front end of described nut is provided with protruding key 232, described adapter ring body is provided with the transposition groove 251 that cooperates with described protruding key, described forward annular body can be installed in outside the drill body slidingly back and forth, described drill chuck is provided with the flexible member 262 of forward annular body to the extruding of adapter ring body direction, and flexible member 262 adopts spring.Like this, can increase the clamping force of drill chuck to instrument.
It is example that this practicality example adopts the bivalve hand fastening drill clutch, and drawing reference numeral 280 is the back cover of drill body activity relatively.Drawing reference numeral 290 is the protecgulum of drill chuck, and it is positioned at by collar 291 on the step of drill body front end, and spring 262 is between protecgulum 290 and the forward annular body 270.Drawing reference numeral 236 is a nut sleeve, and drawing reference numeral 292 is the circle ball between the drill body of nut and rear nut.
During clamping tool, front end from drill chuck, rotary sleeve is to clockwise rotate, in the incipient stage, ridge 254 is in the groove 233, and the tooth of adapter ring and forward annular body teeth groove are thrown off, clockwise rotate rotary sleeve, rotary sleeve drives the adapter ring rotation, and by cooperating of groove 233 and ridge 254, nut is made the jaw clamping tool by drive;
After jaw is clamped instrument, be rotated further rotary sleeve, this moment, nut suspended rotation, ridge 254 enters in the groove 234 through transition face 231, one sidewall and the protruding key 232 of transposition groove 251 are collided, and at this moment, adapter ring is made the tooth and the engagement of forward annular body teeth groove of adapter ring to sinciput, at this moment, drill chuck is in the self-locking locking state, is rotated further rotary sleeve, and adapter ring rotates synchronously, the forward annular body is the front and back play under the effect of spring, tooth 252 slips on teeth groove 271 surfaces, and simultaneously, protruding key 232 is driven by the sidewall of transposition groove 251, nut is rotated further, thus clamping tool more tightly.When entering duty when stopping operating, even drill chuck is subjected to shock loading, because the tooth and the forward annular body teeth groove engagement fit of adapter ring, drill body is not loosening relatively for nut, and jaw keeps the clamped condition to instrument.
In the time will taking out instrument, rotate counterclockwise rotary sleeve, adapter ring goes to another sidewall and the protruding key 232 of transposition groove 251 and collides, ridge 254 enters in the groove 233 through transition face 231, and tooth and teeth groove are thrown off, and the self-locking locking state is disengaged, be rotated further rotary sleeve, just can unclamp jaw and take out instrument.
Claims (13)
1, a kind of self-locking type clamping head of hand-locking drill, comprise drill body, jaw, the rotary sleeve of axial location, nut, jaw is connected with nut thread, it is characterized in that described drill chuck is provided with in the place ahead of nut around the drill body and the forward annular body that can not rotate with respect to drill body, the rear end face of described forward annular body is provided with teeth groove, described rotary sleeve is provided with rotary sleeve and connects and the adapter ring of rotation and the slip of energy front and back, described adapter ring is between nut and the forward annular body, described adapter ring has the locking element that cooperates with forward annular body teeth groove, the front end face of described nut is provided with the configuration that locking element and the forward annular body teeth groove of control adapter ring throw off and controls their and lock the configuration that cooperates and the transition face between configuration, described adapter ring is connected with nut and can rotates relative to nut between above-mentioned configuration, and described drill chuck is provided with the flexible member of adapter ring to the extruding of nut direction.
2, a kind of self-locking type clamping head of hand-locking drill as claimed in claim 1 is characterized in that described locking element is a spring leaf, and described spring leaf has the locking position that cooperates with forward annular body teeth groove.
3, a kind of self-locking type clamping head of hand-locking drill as claimed in claim 1 is characterized in that described locking element is the tooth on the adapter ring front end face.
4, the profile that is configured as being in nut front end face differing heights that the configuration that a kind of self-locking type clamping head of hand-locking drill as claimed in claim 1, the locking element that it is characterized in that described control adapter ring and forward annular body teeth groove are thrown off and their locking of control cooperate.
5, the groove that is configured as being in nut front end face differing heights that the configuration that a kind of self-locking type clamping head of hand-locking drill as claimed in claim 1, the locking element that it is characterized in that described control adapter ring and forward annular body teeth groove are thrown off and their locking of control cooperate.
6, a kind of self-locking type clamping head of hand-locking drill as claimed in claim 5 is characterized in that described adapter ring is provided with the ridge with described groove fit.
7, a kind of self-locking type clamping head of hand-locking drill as claimed in claim 2 is characterized in that the front end face of described nut is provided with protruding key, and described adapter ring has the transposition groove that cooperates with protruding key.
8, a kind of self-locking type clamping head of hand-locking drill as claimed in claim 3, the front end that it is characterized in that described nut is provided with protruding key, described adapter ring is provided with the transposition groove that cooperates with described key, described forward annular body can be installed in outside the drill body slidingly back and forth, and described drill chuck is provided with the flexible member of forward annular body to the extruding of adapter ring body direction.
9, a kind of self-locking type clamping head of hand-locking drill as claimed in claim 8 is characterized in that described forward annular body is connected by key with drill body, and the forward annular body is provided with the chute that cooperates with key.
10, a kind of self-locking type clamping head of hand-locking drill as claimed in claim 1 is characterized in that described forward annular body is located at the front end of drill body.
11, a kind of self-locking type clamping head of hand-locking drill as claimed in claim 1 is characterized in that described the flexible member of adapter ring to nut direction extruding being mediated between ring and the forward annular body.
12, a kind of self-locking type clamping head of hand-locking drill as claimed in claim 1 is characterized in that described rotary sleeve is provided with the flexible member mounting groove of opening surface to adapter ring, described adapter ring is located in the mounting groove to the installation end of the flexible member of nut direction extruding.
13, a kind of self-locking type clamping head of hand-locking drill as claimed in claim 1 is characterized in that described rotary sleeve and adapter ring keyway are connected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710068086 CN101081444A (en) | 2007-04-20 | 2007-04-20 | Self-locking type clamping head of hand-locking drill |
| PCT/CN2007/001972 WO2008074204A1 (en) | 2006-12-18 | 2007-06-25 | A self-locking manual tightening drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710068086 CN101081444A (en) | 2007-04-20 | 2007-04-20 | Self-locking type clamping head of hand-locking drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101081444A true CN101081444A (en) | 2007-12-05 |
Family
ID=38911351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710068086 Pending CN101081444A (en) | 2006-12-18 | 2007-04-20 | Self-locking type clamping head of hand-locking drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101081444A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014082194A1 (en) * | 2012-11-27 | 2014-06-05 | 浙江三鸥机械股份有限公司 | Self-locking inner cone 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 |
| CN107322057A (en) * | 2017-07-24 | 2017-11-07 | 浙江三鸥机械股份有限公司 | A kind of hand fastening drill clutch |
-
2007
- 2007-04-20 CN CN 200710068086 patent/CN101081444A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014082194A1 (en) * | 2012-11-27 | 2014-06-05 | 浙江三鸥机械股份有限公司 | Self-locking inner cone 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 |
| CN107138774B (en) * | 2017-06-23 | 2023-11-28 | 浙江三鸥机械股份有限公司 | Self-locking drill chuck |
| CN107322057A (en) * | 2017-07-24 | 2017-11-07 | 浙江三鸥机械股份有限公司 | A kind of hand fastening drill clutch |
| CN107322057B (en) * | 2017-07-24 | 2023-09-15 | 浙江三鸥机械股份有限公司 | Hand-tightening drill chuck |
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| C10 | Entry into substantive examination | ||
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| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20071205 |
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| C20 | Patent right or utility model deemed to be abandoned or is abandoned |