CN203973451U - Force moment protection safety chuck wrench - Google Patents
Force moment protection safety chuck wrench Download PDFInfo
- Publication number
- CN203973451U CN203973451U CN201420287149.8U CN201420287149U CN203973451U CN 203973451 U CN203973451 U CN 203973451U CN 201420287149 U CN201420287149 U CN 201420287149U CN 203973451 U CN203973451 U CN 203973451U
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- CN
- China
- Prior art keywords
- spring
- ratchet
- steel plate
- push rod
- main shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of force moment protection safety chuck wrench.The spring of existing safety chuck wrench easily affects the normal use of chuck head, and the situation of unfavorable lathe work easily occurs when spring comes off.The utility model comprises spanner main shaft, tool-post wrench, automatic spring protection mechanism, adjusting torque protection mechanism, bidirectional ratchet changement and three self-locking mechanisms; Tool-post wrench is fixed on spanner spindle top; Automatic spring protection mechanism comprises push rod spring and push rod; Adjusting torque protection mechanism comprises compact heap, disk spring, the protective shaft sleeve of trying hard to keep, steel ball and gripping sleeve housing; Bidirectional ratchet changement comprises cushion block, ratchet, ratchet, ratchet locating piece, upper steel plate, gripper shoe and lower steel plate; Three self-locking mechanisms comprise handle, holddown spring and pad.The utility model can be realized the accurate control of scroll chuck clamping force, and both can be used as three-jaw chuck spanner, also can be used as tool-post wrench, is simple and easy to use, and security is good.
Description
Technical field
The utility model belongs to mechanical manufacturing field, relates to fixture, is specifically related to a kind of force moment protection safety chuck wrench.
Background technology
At present on the market based on the improved chuck handle of safety problem, the safety chuck wrench as the application number Chinese patent that is 91219170.8 is announced, comprises wrench body and spanner handle, also comprises spring, and this spring housing is contained on wrench body.Operator is after using three-jaw chuck spanner, and under the effect of spring force, wrench body can automatically eject in the square hole from scroll chuck excircle.But above-mentioned spring is arranged at the chuck head end of chuck body, easily affect the normal use of chuck head, and the situation that unfavorable lathe work easily occurs when spring comes off.Just because of this this shortcoming of safety chuck wrench operation inconvenience, limited the extensive use in its practical operation.
Visible, the design of chuck handle should be in conjunction with practical operation.For the three-jaw chuck spanner using on engine lathe, develop a kind of multi-functional, easy and simple to handle three-jaw chuck spanner of safety again, to operator's problem that processing safety is poor when using scroll chuck workpiece loading and unloading, clamping force control is poor, it can be a solution route well.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and a kind of force moment protection safety chuck wrench is provided, and can realize the accurate control of scroll chuck clamping force; and both can be used as three-jaw chuck spanner; also can be used as tool-post wrench, be simple and easy to use, security is good.
The utility model comprises spanner main shaft, tool-post wrench, automatic spring protection mechanism, adjusting torque protection mechanism, bidirectional ratchet changement and three self-locking mechanisms; Described tool-post wrench is fixed on spanner spindle top; The bottom of described spanner main shaft is square column.
Described automatic spring protection mechanism comprises push rod spring and push rod.Described push rod spring and push rod are all nested with in the centre bore of spanner main shaft bottom, and stretch out outside spanner main shaft the bottom of push rod; Described push rod is connected by push rod spring with spanner main shaft.
Described adjusting torque protection mechanism comprises compact heap, disk spring, the protective shaft sleeve of trying hard to keep, steel ball and gripping sleeve housing; Compact heap, disk spring, the protective shaft sleeve of trying hard to keep are all nested with on spanner main shaft, and disk spring is arranged on compact heap and tries hard to keep between protective shaft sleeve; Described steel ball is arranged in the locating slot of spanner main shaft periphery, and the inwall of the protective shaft sleeve of trying hard to keep compresses steel ball; Gripping sleeve housing is nested with at compact heap and tries hard to keep outside protective shaft sleeve; The inside top face of described gripping sleeve housing contacts with the end face of the protective shaft sleeve of trying hard to keep, and inwall bottom is threaded with compact heap.
Described bidirectional ratchet changement comprises cushion block, ratchet, ratchet, ratchet locating piece, upper steel plate, gripper shoe and lower steel plate; Described ratchet empty set is on spanner main shaft; On ratchet, taking turns hub sleeve has upper steel plate, and lower whorl hub sleeve has lower steel plate, and lower hub and gripping sleeve housing are fixed; The sidewall of described upper steel plate and lower steel plate is all fixed with gripper shoe; The end face of described gripper shoe afterbody and side transition position, bottom surface and the equal rounding of side transition position; Between described upper steel plate, lower steel plate, be fixed with cushion block and ratchet locating piece; Described ratchet and upper steel plate and lower steel plate are hinged; The tail end of described ratchet is provided with spacing preiection, and head both sides are equipped with pawl point; Described ratchet locating piece offers spring fitting groove, and decorative pearl on top of an official cap spring embeds in spring fitting groove; The decorative pearl on top of an official cap and decorative pearl on top of an official cap spring are fixed, and compress ratchet afterbody.
Three described self-locking mechanisms comprise handle, holddown spring and pad.Described handle and the afterbody of gripper shoe are hinged; Described holddown spring and pad are all nested with at handle head, and holddown spring is arranged between pad and handle; Described pad pressing handle.
The beneficial effects of the utility model:
1, adjusting torque protection mechanism of the present utility model, can realize the accurate control of scroll chuck clamping force;
2, automatic spring protection mechanism of the present utility model, the security that improves scroll chuck clamp operation;
3, three self-locking mechanisms of the present utility model, the speed while realizing little moment by three stations of handle, torsion during high pulling torque;
4, bidirectional ratchet changement of the present utility model, compact conformation, gets final product degree of tightness scroll chuck without changing hand;
5, the utility model both can be used as three-jaw chuck spanner, also can be used as tool-post wrench, was simple and easy to use, and security is good.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the cutaway view of automatic spring protection mechanism in the utility model;
Fig. 3 is the cutaway view of adjusting torque protection mechanism in the utility model;
Fig. 4 is the assembling schematic diagram of ratchet and pawl in the utility model.
In figure: 1, spanner main shaft, 2, push rod spring, 3, push rod, 4, compact heap; 5, disk spring, 6, the protective shaft sleeve of trying hard to keep, 7, steel ball, 8, gripping sleeve housing; 9, cushion block, 10, ratchet, 11, tool-post wrench, 12, pin; 13, ratchet, 14, ratchet locating piece, 15, upper steel plate, 16, handle; 17, holddown spring, 18, pad, 19, gripper shoe; 20, lower steel plate, 21, the decorative pearl on top of an official cap, 22, decorative pearl on top of an official cap spring.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, force moment protection safety chuck wrench, comprises spanner main shaft 1, tool-post wrench 11, automatic spring protection mechanism, adjusting torque protection mechanism, bidirectional ratchet changement and three self-locking mechanisms; Tool-post wrench 11 is fixed on spanner main shaft 1 top by pin 12; The bottom of spanner main shaft 1 is square column 1-1.
As shown in Figure 2, automatic spring protection mechanism comprises push rod spring 2 and push rod 3.Push rod spring 2 and push rod 3 are all nested with in the centre bore of spanner main shaft 1 bottom, and stretch out outside spanner main shaft 1 bottom of push rod 3; Push rod 3 is connected by push rod spring 2 with spanner main shaft 1.
As shown in Figure 3, adjusting torque protection mechanism comprise compact heap 4, disk spring 5, the protective shaft sleeve 6 of trying hard to keep, steel ball 7 and gripping sleeve housing 8; Compact heap 4, disk spring 5, the protective shaft sleeve 6 of trying hard to keep are all nested with on spanner main shaft 1, and disk spring 5 is arranged on compact heap 4 and tries hard to keep between protective shaft sleeve 6; Steel ball 7 is arranged in the locating slot 1-2 of spanner main shaft 1 periphery, and the inwall of the protective shaft sleeve 6 of trying hard to keep compresses steel ball 7; Gripping sleeve housing 8 is nested with at compact heap 4 and tries hard to keep outside protective shaft sleeve 6; The inside top face of gripping sleeve housing 8 contacts with the end face of the protective shaft sleeve 6 of trying hard to keep, and inwall bottom is threaded with compact heap 4.
As shown in figs. 1 and 4, bidirectional ratchet changement comprises cushion block 9, ratchet 10, ratchet 13, ratchet locating piece 14, upper steel plate 15, gripper shoe 19 and lower steel plate 20; Ratchet 10 empty sets are on spanner main shaft 1; On ratchet 10, taking turns hub sleeve has upper steel plate 15, and lower whorl hub sleeve has lower steel plate 20, and lower hub and gripping sleeve housing 8 is fixing; The sidewall of upper steel plate 15 and lower steel plate is all fixing with gripper shoe 19; The end face of gripper shoe 19 afterbodys and side transition position, bottom surface and the equal rounding of side transition position; Between upper steel plate 15, lower steel plate 20, be fixed with cushion block 9 and ratchet locating piece 14; Ratchet 13 is hinged with upper steel plate 15 and lower steel plate 20; The tail end of ratchet 13 is provided with spacing preiection 13-1, and head both sides are equipped with pawl point 13-2; Ratchet locating piece 14 offers spring fitting groove 14-1, and decorative pearl on top of an official cap spring 22 embeds in spring fitting groove 14-1; The decorative pearl on top of an official cap 21 is fixing with decorative pearl on top of an official cap spring 22, and compresses ratchet 13 afterbodys.
As shown in Figure 1, three self-locking mechanisms comprise handle 16, holddown spring 17 and pad 18.Handle 16 is hinged with the afterbody of gripper shoe 19; Holddown spring 17 and pad 18 are all nested with at handle 16 heads, and holddown spring 17 is arranged between pad 18 and handle 16; Pad 18 pressing handles 16.
The operation principle of this force moment protection safety chuck wrench:
When operator applies downward power to upper steel plate 15, push rod 3 retractions, the square column 1-1 of spanner main shaft 1 coordinates with scroll chuck groove, and transmitting torque, when operator looses one's grip, push rod 3 stretches out under the restoring force effect of push rod spring 2, by spanner main shaft 1 jack-up upwards, transmitting torque no longer, because general structure is eccentric, the trend that has downward landing under Action of Gravity Field, plays safe warning function to operator in time.
The torsion of handle 16 is delivered to gripping sleeve housing 8 by click, through the acting in conjunction of compact heap 4, disk spring 5, try hard to keep protective shaft sleeve 6 and steel ball 7, passes on chuck handle 1.Under normal moment of torsion, thereby the protective shaft sleeve 6 of trying hard to keep produces frictional force by steel ball 7 compression chuck spanners 1, and moment of torsion is passed to chuck handle 1 under frictional force effect.But when the moment of torsion reaction force of chuck handle 1 being produced when scroll chuck surpasses the moment of friction of 7 pairs of chuck handles 1 of steel ball; steel ball 7 can skid mutually with the protective shaft sleeve 6 of trying hard to keep; and the square column 1-1 that makes spanner main shaft transmitting torque no longer has so just avoided thin-wall workpiece clamped and be out of shape by scroll chuck transition.And can presetting thrust by compact heap 4.
Because holddown spring 17 is always in compressive state, pad 18 compresses gripper shoe 19, and processed fillet in gripper shoe 19, handle 16 can only be come to a complete stop at these three stations of end face, bottom surface and the end horizontal position of gripper shoe 19, the reaction force that now elastic force of holddown spring 17 and pad 18 transmit is offset completely, does not produce slippage component; During clamping workpiece, when the movable jaw of scroll chuck is during in the unloaded stage, handle 16 is arranged on the end face station of gripper shoe 19, hold handle 16 fast rotational, after experiencing the movable jaw of scroll chuck and contacting with workpiece, handle 16 is arranged on to the end horizontal position of gripper shoe 19, increases after moment of torsion, continue scroll chuck to apply torsion.When handle 16 is arranged on the bottom surface station of gripper shoe 19, can uses tool-post wrench 11 lockings or unclamp knife rest.
The decorative pearl on top of an official cap 21 of bidirectional ratchet changement can Bidirectional compacting spacing preiection 13-1 two side, the pawl point 13-2 of ratchet head both sides can realize the bidirectional rotation of ratchet 10, this force moment protection safety chuck wrench can be used the in the situation that of limited space.
Claims (1)
1. force moment protection safety chuck wrench, comprises spanner main shaft, tool-post wrench, automatic spring protection mechanism, adjusting torque protection mechanism, bidirectional ratchet changement and three self-locking mechanisms, it is characterized in that:
Described tool-post wrench is fixed on spanner spindle top; The bottom of described spanner main shaft is square column;
Described automatic spring protection mechanism comprises push rod spring and push rod; Described push rod spring and push rod are all nested with in the centre bore of spanner main shaft bottom, and stretch out outside spanner main shaft the bottom of push rod; Described push rod is connected by push rod spring with spanner main shaft;
Described adjusting torque protection mechanism comprises compact heap, disk spring, the protective shaft sleeve of trying hard to keep, steel ball and gripping sleeve housing; Compact heap, disk spring, the protective shaft sleeve of trying hard to keep are all nested with on spanner main shaft, and disk spring is arranged on compact heap and tries hard to keep between protective shaft sleeve; Described steel ball is arranged in the locating slot of spanner main shaft periphery, and the inwall of the protective shaft sleeve of trying hard to keep compresses steel ball; Gripping sleeve housing is nested with at compact heap and tries hard to keep outside protective shaft sleeve; The inside top face of described gripping sleeve housing contacts with the end face of the protective shaft sleeve of trying hard to keep, and inwall bottom is threaded with compact heap;
Described bidirectional ratchet changement comprises cushion block, ratchet, ratchet, ratchet locating piece, upper steel plate, gripper shoe and lower steel plate; Described ratchet empty set is on spanner main shaft; On ratchet, taking turns hub sleeve has upper steel plate, and lower whorl hub sleeve has lower steel plate, and lower hub and gripping sleeve housing are fixed; The sidewall of described upper steel plate and lower steel plate is all fixed with gripper shoe; The end face of described gripper shoe afterbody and side transition position, bottom surface and the equal rounding of side transition position; Between described upper steel plate, lower steel plate, be fixed with cushion block and ratchet locating piece; Described ratchet and upper steel plate and lower steel plate are hinged; The tail end of described ratchet is provided with spacing preiection, and head both sides are equipped with pawl point; Described ratchet locating piece offers spring fitting groove, and decorative pearl on top of an official cap spring embeds in spring fitting groove; The decorative pearl on top of an official cap and decorative pearl on top of an official cap spring are fixed, and compress ratchet afterbody;
Three described self-locking mechanisms comprise handle, holddown spring and pad; Described handle and the afterbody of gripper shoe are hinged; Described holddown spring and pad are all nested with at handle head, and holddown spring is arranged between pad and handle; Described pad pressing handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420287149.8U CN203973451U (en) | 2014-05-30 | 2014-05-30 | Force moment protection safety chuck wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420287149.8U CN203973451U (en) | 2014-05-30 | 2014-05-30 | Force moment protection safety chuck wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203973451U true CN203973451U (en) | 2014-12-03 |
Family
ID=51970935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420287149.8U Withdrawn - After Issue CN203973451U (en) | 2014-05-30 | 2014-05-30 | Force moment protection safety chuck wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203973451U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029158A (en) * | 2014-05-30 | 2014-09-10 | 杭州电子科技大学 | Torque protection safety chuck spanner |
| CN113510646A (en) * | 2021-07-29 | 2021-10-19 | 河南科技大学 | Spanner suitable for cast iron platform T type groove |
| CN115122265A (en) * | 2022-09-01 | 2022-09-30 | 天津航天机电设备研究所 | Space station target adapter expansion bolt uninstallation instrument |
-
2014
- 2014-05-30 CN CN201420287149.8U patent/CN203973451U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029158A (en) * | 2014-05-30 | 2014-09-10 | 杭州电子科技大学 | Torque protection safety chuck spanner |
| CN113510646A (en) * | 2021-07-29 | 2021-10-19 | 河南科技大学 | Spanner suitable for cast iron platform T type groove |
| CN115122265A (en) * | 2022-09-01 | 2022-09-30 | 天津航天机电设备研究所 | Space station target adapter expansion bolt uninstallation instrument |
| CN115122265B (en) * | 2022-09-01 | 2022-12-02 | 天津航天机电设备研究所 | Space station target adapter expansion bolt uninstallation instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20151118 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20151118 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |