CN205551511U - Circular bar stock clamping device - Google Patents
Circular bar stock clamping device Download PDFInfo
- Publication number
- CN205551511U CN205551511U CN201620385510.XU CN201620385510U CN205551511U CN 205551511 U CN205551511 U CN 205551511U CN 201620385510 U CN201620385510 U CN 201620385510U CN 205551511 U CN205551511 U CN 205551511U
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- China
- Prior art keywords
- circular bar
- claw
- ringfeder
- groove
- hole
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- 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.)
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Abstract
The utility model discloses a circular bar stock clamping device, including pull rod and body, conical surface tapering is beta's toper cover in inside being equipped with of right -hand member of body, the inside of toper cover is equipped with the cover that rises, the right -hand member of cover of rising is gamma's toper for the male cone (strobilus masculinus) tapering, the first trough that has three equipartition is opened to the circumference of overlapping that rises, be equipped with the jack catch of male cone (strobilus masculinus) tapering for alpha in the first trough, alpha = beta = gamma wherein, the jack catch equals circular bar by the interior cambered surface of centre gripping diameter with the face that circular bar contacted for the radius, the width of the first trough equals the width of jack catch, length equals the length of jack catch, inside the opening of body has the second groove that corresponds with the first trough, the width in second groove is greater than the width of jack catch, the pull rod penetrates body and continuous with the left end of the cover that rises, be equipped with on the body the spacing stop device of circular bar axial. The utility model discloses novel structure, convenient operation is convenient for remove, change the linear displacement of pneumatic cylinder the radial displacement of hold assembly into, realized circular bar freight handling automatization, improved efficiency.
Description
Technical field
This utility model belongs to technological equipment field, particularly to a kind of circular bar clamping device.
Background technology
In machining work process, need circular bar is carried out accurate clamping and positioning.In the prior art, scroll chuck, chuck, V-block mechanism etc. are typically used in clamping for circular bar, these mechanisms belong to machine tool accessories, and general and lathe supports the use, and these mechanism structure are complicated simultaneously, inconvenient operation, and can only radially position, easily loosen, need hand-operated clamping, manual workpiece loading and unloading, inefficiency.
Summary of the invention
Existing circular bar clamp system belongs to machine tool accessories, needs and lathe supports the use, and these mechanism structure are complicated simultaneously, and inconvenient operation can only radially position, easily loosen, need hand-operated clamping, manual workpiece loading and unloading, inefficiency.The purpose of this utility model is, for above-mentioned the deficiencies in the prior art, it is provided that a kind of circular bar clamping device.
For solving above-mentioned technical problem, this utility model be the technical scheme is that
nullA kind of circular bar clamping device，Including pull bar and body，The taper sheath that inner conical surface tapering is β it is provided with inside the right-hand member of described body，The inside of taper sheath is provided with ringfeder，The right-hand member of this ringfeder be male cone (strobilus masculinus) tapering be the taper of γ，The circumference of ringfeder has three the first uniform grooves，The claw that male cone (strobilus masculinus) tapering is α it is provided with in described first groove，Wherein α=β=γ，The face that described claw contacts with circular bar is the intrados that radius is equal to the held diameter of circular bar，The width a1 of the first groove is equal to the width a of claw，Length b1 of the first groove is equal to length b of claw，Described body interior has second groove corresponding with the first groove，The width b2 of the second groove is more than the width a of claw，Described pull bar penetrates body and is connected with the left end of ringfeder，The stopping means to circular bar axial limiting it is additionally provided with on described body.
By said structure, mobile pull bar, pull bar is made to drive tension ringfeder, ringfeder drives the claw of the first groove being positioned at ringfeder to move, make claw and taper sheath relative movement, the male cone (strobilus masculinus) of claw and the inner conical surface of taper sheath in axially opposing movement so that claw moves in the direction radially towards reduced radius, all claws move simultaneously thus clamp circular bar, it is achieved that radially location and clamping；Stopping means and circular bar end contact achieve axially location simultaneously.After clamping workpiece, such that it is able to circular bar is carried out corresponding machining.After machining is complete, pushing drawing rod drives ringfeder to move round about, and ringfeder drives claw to separate with taper sheath, and claw moves in the direction increased radially towards radius, thus unloads circular bar.
As a kind of optimal way, described stopping means includes positioning bar and being set in the positioning sleeve outside the bar of location, described ringfeder has mounting hole, described body has the first hole, described location bar and positioning sleeve are positioned at the first hole and through mounting hole, and the right flank of described positioning sleeve is location end face.
Circular bar is pushed body and holds out against location end face, it is achieved the axial location of circular bar.
Further, the two ends of described first groove have cannelure, are provided with turn in this cannelure, and the two ends of described claw have the breach blocking turn.
During clamping workpiece, claw moves radially, jaws clamp, and diameter reduces, and turn follows claw to shrink, and stores energy；When loosening workpiece, turn releases energy, by claw top to origin-location.
Further, described intrados has the 3rd groove that cross section is triangle.
During claw clamping circular bar, the design of the 3rd groove makes claw can contact circular bar surface well.
Further, when the male cone (strobilus masculinus) of described claw and the inner conical surface of taper sheath are fitted, the distance between right side and the right side of taper sheath of claw is X1, and the distance between right side and the right side of taper sheath of ringfeder is X2, wherein 3 mm≤X1≤8 mm, 5 mm≤X2≤10 mm.
Limiting 3 mm≤X1≤8 mm is to make the displacement of pull bar be unlikely to excessive, limits 5 mm≤X2≤10 mm and is to ensure that when the circular bar clamped carries out machining without impinging on holder part.
Further, described body also having second hole vertical with the first hole, described ringfeder has threeth hole vertical with mounting hole, the 3rd hole is coaxial with the second hole.
Second hole, as the mounting-positioning holes of whole circular bar clamping device, is used for making whole clamping device be arranged on relevant device, positions whole device；3rd hole is as the circumferentially positioned hole of ringfeder.
Further, also include that hydraulic cylinder, the left end of described pull bar are connected with the piston rod of hydraulic cylinder.
By said structure, clamping power is provided by hydraulic cylinder, and corresponding hydraulic system supports the use；The linear motion of HYDRAULIC CONTROL SYSTEM piston rod and pressurize position, thus realize clamping and the pine state of circular bar clamping device.
As a kind of optimal way, also including intrinsic fairlead, described pull bar through fairlead and is connected with the left end of ringfeder, described pull bar and fairlead matched in clearance.
This utility model has the advantage that
First, this utility model novel structure, the appropriate design of each design of part size, and the application of the ingenious reset function of spring so that this apparatus structure is achieved；Easy to operate, it is simple to mobile；The ingenious radial displacement that the straight-line displacement of hydraulic cylinder changes into hold assembly, is moved by the male cone (strobilus masculinus) of claw and the inner conical surface of taper sheath at axially opposing movement, driving claw, and clamps held circular bar.
Second, this utility model hydraulic system matches use, and HYDRAULIC CONTROL SYSTEM hydraulic cylinder moves loading, pressurize, three station state of unloading, thus realizes the clamping of circular bar, machining operation, unclamps three states, it is achieved thereby that circular bar freight handling automatization, improve efficiency.
3rd, this utility model is the actuator that circular bar clamps equipment automatically, can support the use with relevant device, and circular bar is carried out machining operation process.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model one embodiment.
Fig. 2 is the structural representation of claw in Fig. 1.
Fig. 3 is the front view of Fig. 2.
Fig. 4 is the left view of Fig. 2.
Fig. 5 is the front view of ringfeder in Fig. 1.
Fig. 6 is the top view of Fig. 5.
Fig. 7 is the front view of body in Fig. 1.
Fig. 8 is the A-A sectional view of Fig. 7.
Fig. 9 is the front view of positioning sleeve in Fig. 1.
Figure 10 is the right view of Fig. 9.
Figure 11 is the front view of taper sheath in Fig. 1.
Figure 12 is the right view of turn in Fig. 1.
Wherein, 1 is pull bar, and 2 is body, 3 is fairlead, and 4 is ringfeder, and 5 is positioning sleeve, 6 is location bar, and 7 is nut, and 8 is pad, 9 is taper sheath, and 10 is claw, and 11 is turn, 12 is circular bar, and 13 is hydraulic cylinder, and 14 is piston rod, 15 is the 5th hole, and 16 is breach, and 17 is location end face, 18 is the 3rd groove, and 19 is intrados, and 20 is the first screwed hole, 21 is mounting hole, and 22 is the 3rd hole, and 23 is cannelure, 24 is the first groove, and 25 is the second screwed hole, and 26 is the first hole, 27 is the second hole, and 28 is the 4th hole, and 29 is the second groove.
Detailed description of the invention
As shown in Figures 1 to 12, an embodiment of the present utility model includes a kind of circular bar 12 clamping device, including pull bar 1 and body 2, the taper sheath 9 that inner conical surface tapering is β it is provided with inside the right-hand member of described body 2, body 2 right-hand member offers the 4th hole 28, the 4th hole 28 and the periphery interference fit of taper sheath 9.The inside of taper sheath 9 is provided with ringfeder 4, the right-hand member of this ringfeder 4 be male cone (strobilus masculinus) tapering be the taper of γ, the circumference of ringfeder 4 has three the first uniform grooves 24, is provided with the claw 10 that male cone (strobilus masculinus) tapering is α, wherein 25 °≤α=β=γ≤35 ° in described first groove 24；The face that described claw 10 contacts with circular bar 12 is the intrados 19 that radius is equal to the held diameter of circular bar 12, the width a1 of the first groove 24 is equal to the width a of claw 10, length b1 of the first groove 24 is equal to length b of claw 10, and activity is freely in the first groove 24 to ensure claw 10 after assembling；Described body 2 is internal has second groove 29 corresponding with the first groove 24, and width b2 2 mms bigger than the width a of claw 10 of the second groove 29, the degree of depth of the second groove 29 should make claw 10 not interfere when moving, and i.e. claw 10 is when body 2 inner chamber moves, without impinging on body 2 inner chamber.The left end of ringfeder 4 has the first screwed hole 20, and described pull bar 1 penetrates body 2 the first screwed hole 20 bolt with ringfeder 4 left end, and described body 2 is additionally provided with the stopping means to circular bar 12 axial limiting.Before and after described claw 10, there is preferable symmetry requirement side, in order to makes claw 10 central plane coincide with ringfeder 4 central plane after assembling.Also include that hydraulic cylinder 13, the left end of described pull bar 1 are connected with the piston rod 14 of hydraulic cylinder 13.Described hydraulic cylinder 13 move axially distance for L, claw 10 radial contraction δ=L × tan α.
Described stopping means includes positioning bar 6 and being set in the positioning sleeve 5 outside the bar 6 of location, described positioning sleeve 5 axially has the 5th hole 15,5th hole 15 and location bar 6 interference fit after assembling, mounting hole 21 is had on described ringfeder 4, the first hole 26 is had on described body 2, first hole 26 is stepped hole, for installing location bar 6, positioning sleeve 5 and the nut 7 of stationary positioned bar 6 and pad 8；Described location bar 6 and positioning sleeve 5 are positioned at the first hole 26 and through mounting hole 21, and the right flank of described positioning sleeve 5 is location end face 17.It is perpendicular to the axis direction of pull bar 1 after end face 17 assembling of location, circular bar 12 is axially positioned；Positioning sleeve about 5 is milled with two symmetrical planes.The design of mounting hole 21 can be avoided positioning bar 6 and the position of positioning sleeve 5, ensures that when ringfeder 4 moves, discord location bar 6 and positioning sleeve 5 are interfered after assembling.
The two ends of described first groove 24 have cannelure 23, and the slot cross-section of cannelure 23 is arc, and the arc radius of this arc is slightly larger than the diameter of turn 11 cross section；Being provided with turn 11 in this cannelure 23, the two ends of described claw 10 are respectively milled with the breach 16 blocking turn 11.Height c >=L × tan α of breach 16, so when claw 10 clamps circular bar 12 periphery, turn 11 will not be deviate from inside cannelure 23.
Claw 10 is acted the effect replying position by described turn 11, and free state external diameter R1 withstands claw 10, makes the male cone (strobilus masculinus) of claw 10 contact with the inner conical surface of taper sheath 9；When circular bar 12 is clamped, the inner ring R2 of turn 11 is more than the outside diameter 3～5mm of circular bar 12；It is θ that turn 11 is removed portion centers angle, 100 °≤θ≤120 °.
The 3rd groove 18 that two cross sections are triangle is had on described intrados 19.
When the male cone (strobilus masculinus) of described claw 10 and the inner conical surface of taper sheath 9 are fitted, distance between right side and the right side of taper sheath 9 of claw 10 is X1, distance between right side and the right side of taper sheath 9 of ringfeder 4 is X2, wherein 3 mm≤X1≤8 mm, 5 mm≤X2≤10 mm.
Also having second hole 27 vertical with the first hole 26 on described body 2, described ringfeder 4 has threeth hole 22 vertical with mounting hole 21, the 3rd hole 22 is coaxial with the second hole 27.
Second hole 27, as the mounting-positioning holes of whole circular bar 12 clamping device, is used for making whole clamping device be arranged on relevant device, positions whole device；3rd hole 22 is as the circumferentially positioned hole of ringfeder 4.
Also include that the fairlead 3 in body 2, described body 2 left end are offered the second screwed hole 25, the second screwed hole 25 and fairlead 3 and coordinated installation；Described pull bar 1 is connected through fairlead 3 left end with ringfeder 4, described pull bar 1 and fairlead 3 matched in clearance.
This utility model and hydraulic system with the use of, hydraulic system supplies power to hydraulic cylinder 13, and control the position of hydraulic cylinder 13 and dwell time in certain sequence, controlling this utility model device clamping circular bar 12 and also keep certain time, then loosening workpiece to fall workpiece.
Described hydraulic cylinder 13 has loading movement, pressurize locking, three stations of unloading,
When hydraulic cylinder 13 loads mobile, piston rod 14 drives pull bar 1 to move, pull bar 1 is made to drive tension ringfeder 4, ringfeder 4 drives the claw 10 of the first groove 24 being positioned at ringfeder 4 to move, make claw 10 and taper sheath 9 relative movement, the male cone (strobilus masculinus) of claw 10 and the inner conical surface of taper sheath 9 in axially opposing movement so that claw 10 moves in the direction radially towards reduced radius, three claws 10 move simultaneously thus clamp circular bar 12, it is achieved that radially location and clamping；Location end face 17 and circular bar 12 end contact of positioning sleeve 5 achieves axially location simultaneously.After clamping workpiece, hydraulic cylinder 13 pressurize locking certain time so that circular bar 12 persistently clamps, such that it is able to circular bar 12 is carried out corresponding machining.After machining is complete, hydraulic cylinder 13 unloads, reply origin-location, piston rod 14 pushing drawing rod 1 drives ringfeder 4 to move round about, ringfeder 4 drives claw 10 and taper sheath 9 to separate, claw 10, under the restoring force effect of turn 11, moves in the direction increased radially towards radius, thus unloads circular bar 12.The clamping of whole process has only to circular bar 12 pushes body 2 and holds out against location end face 17, then operation hydraulic control switch.
Claims (8)
- null1. a circular bar clamping device，It is characterized in that，Including pull bar (1) and body (2)，The taper sheath (9) that inner conical surface tapering is β it is provided with inside the right-hand member of described body (2)，The inside of taper sheath (9) is provided with ringfeder (4)，The right-hand member of this ringfeder (4) be male cone (strobilus masculinus) tapering be the taper of γ，The circumference of ringfeder (4) has three uniform the first grooves (24)，The claw (10) that male cone (strobilus masculinus) tapering is α it is provided with in described first groove (24)，Wherein α=β=γ，The face that described claw (10) contacts with circular bar (12) is the intrados (19) that radius is equal to circular bar (12) held diameter，The width a1 of the first groove (24) is equal to the width a of claw (10)，Length b1 of the first groove (24) is equal to length b of claw (10)，Described body (2) is internal has second groove (29) corresponding with the first groove (24)，The width b2 of the second groove (29) is more than the width a of claw (10)，Described pull bar (1) penetrates body (2) and the left end with ringfeder (4) is connected，The stopping means to circular bar (12) axial limiting it is additionally provided with on described body (2).
- 2. circular bar clamping device as claimed in claim 1, it is characterized in that, described stopping means includes positioning bar (6) and being set in location bar (6) positioning sleeve (5) outward, mounting hole (21) is had on described ringfeder (4), the first hole (26) is had on described body (2), described location bar (6) and positioning sleeve (5) are positioned at the first hole (26) and through mounting hole (21), and the right flank of described positioning sleeve (5) is location end face (17).
- 3. circular bar clamping device as claimed in claim 1, it is characterized in that, the two ends of described first groove (24) have cannelure (23), are provided with turn (11) in this cannelure (23), and the two ends of described claw (10) have the breach (16) blocking turn (11).
- 4. circular bar clamping device as claimed in claim 1, it is characterised in that have the 3rd groove (18) that cross section is triangle on described intrados (19).
- 5. circular bar clamping device as claimed in claim 1, it is characterized in that, when the male cone (strobilus masculinus) of described claw (10) and the inner conical surface of taper sheath (9) are fitted, distance between right side and the right side of taper sheath (9) of claw (10) is X1, distance between right side and the right side of taper sheath (9) of ringfeder (4) is X2, wherein 3 mm≤X1≤8 mm, 5 mm≤X2≤10 mm.
- 6. circular bar clamping device as claimed in claim 1, it is characterized in that, second hole (27) vertical with the first hole (26) is also had on described body (2), having threeth hole (22) vertical with mounting hole (21) on described ringfeder (4), the 3rd hole (22) is coaxial with the second hole (27).
- 7. the circular bar clamping device as described in any one of claim 1 to 6, it is characterised in that also include that hydraulic cylinder (13), the left end of described pull bar (1) are connected with the piston rod (14) of hydraulic cylinder (13).
- 8. the circular bar clamping device as described in any one of claim 1 to 6, it is characterized in that, also including the fairlead (3) in body (2), described pull bar (1) is connected through fairlead (3) the left end with ringfeder (4), described pull bar (1) and fairlead (3) matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620385510.XU CN205551511U (en) | 2016-05-03 | 2016-05-03 | Circular bar stock clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620385510.XU CN205551511U (en) | 2016-05-03 | 2016-05-03 | Circular bar stock clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205551511U true CN205551511U (en) | 2016-09-07 |
Family
ID=56805610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620385510.XU Expired - Fee Related CN205551511U (en) | 2016-05-03 | 2016-05-03 | Circular bar stock clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205551511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798346A (en) * | 2016-05-03 | 2016-07-27 | 江南工业集团有限公司 | Round bar clamping device |
-
2016
- 2016-05-03 CN CN201620385510.XU patent/CN205551511U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798346A (en) * | 2016-05-03 | 2016-07-27 | 江南工业集团有限公司 | Round bar clamping device |
| CN105798346B (en) * | 2016-05-03 | 2018-07-27 | 江南工业集团有限公司 | A kind of circular bar clamping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20170503 |