CN203109674U - Flat tongs - Google Patents
Flat tongs Download PDFInfo
- Publication number
- CN203109674U CN203109674U CN 201320121482 CN201320121482U CN203109674U CN 203109674 U CN203109674 U CN 203109674U CN 201320121482 CN201320121482 CN 201320121482 CN 201320121482 U CN201320121482 U CN 201320121482U CN 203109674 U CN203109674 U CN 203109674U
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- CN
- China
- Prior art keywords
- kelly
- caliper
- tooth bar
- release lever
- mobile
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a pair of flat tongs and relates to a clamping device. The flat tongs comprise a base, a fixed tongs body, a movable tongs body and a screw rod. The fixed tongs body is installed on the base and connected with the base in a rotary mode. The screw rod is connected with the movable tongs body. The flat tongs are further provided with a rack, buckle devices and unlocking devices. The rack is a double-side wedge-shaped rack and fixedly connected with the fixed tongs body. The rack is connected with the movable tongs body through the buckle devices. Two sides of the movable tongs body are provided with the buckle devices respectively. Each buckle device comprises a buckling rod, a pre-tightening spring and a limit spring sheet. The front portion of each buckling rod is arranged inside the side portion of the movable tongs body. A latch is arranged at the front end of each buckling rod. Each latch is a wedge-shaped latch and meshed with the rack. The rear portion of each buckling rod is exposed out of the movable tongs body. Each pre-tightening spring is arranged in the movable tongs body and sleeved on one buckling rod. Each limit spring sheet is arranged on the rear portion of one buckling rod. Two sides of the movable tongs body are provided with the unlocking devices respectively. Each unlocking device comprises a lever support and an unlocking lever. Each lever support is fixed on the movable tongs body. Each unlocking lever is hinged to one lever support. The front end of each unlocking lever is in linked connection with one buckling rod.
Description
Technical field
The utility model relates to a kind of clamping device, particularly a kind of and the supporting use of lathe, can be after fast moving the high speed flat-nose pliers of clamping work pieces.
Background technology
Flat-nose pliers has following critical piece as a kind of piece-holder instrument that is widely used in drilling machine, milling machine, grinding machine: base, main parts size such as regular jaw, moved jaw, leading screw.Traditional flat-nose pliers need open jaw earlier when renewal part and take off workpiece by the rotational lead screw transmission, and rotational lead screw is expanded to greater than accessory size jaw, puts into workpiece, shakes leading screw locking, can provide big and reliable clamping force.But this flat-nose pliers leading screw that need gyrate when frequently changing the outfit big or small part changes jaw size, when particularly workpiece size changes greatly, requires a great deal of time to adjust clamping distance, has reduced operating efficiency.
Chinese patent CN88205780.4 discloses a kind of flat-nose pliers that utilizes half-nut to realize snap-action, but half-nut easily causes clamping imbalance in actual use, and the half-nut processed complex.
Chinese patent CN02268191.4 discloses a kind of flat-nose pliers that adopts two-way leading screw to cooperate with trapezoidal nut, though this flat-nose pliers can make movement velocity double, still can't solve root problem.
Summary of the invention
The purpose of this utility model is to rely on screw mandrel to change the low defective of travel efficiency in order to overcome traditional flat-nose pliers fully at the part that changes the outfit, but provide a kind of caliper fast moving, increase work efficiency greatly, keep the high speed flat-nose pliers of the reliable clamp mechanism of traditional flat-nose pliers simultaneously.
The utility model comprises base, fixed caliper, mobile caliper and leading screw, and fixed caliper is installed on base and is rotationally connected with base, and leading screw is connected with mobile caliper; Its characteristics are, also are provided with tooth bar, bayonet unit and tripper;
Tooth bar is bilateral chisel teeth tooth bar, and tooth bar and fixed caliper are connected, and tooth bar is connected with mobile caliper by bayonet unit; Bayonet unit is all established in mobile caliper both sides, bayonet unit comprises kelly, preloading spring and limit spring sheet, the kelly front portion is located in the mobile caliper sidepiece, the kelly front end is provided with latch, latch is the wedge shape latch, latch and tooth bar engagement, and mobile caliper is exposed at the kelly rear portion, preloading spring is located in the mobile caliper and is enclosed within on the kelly, and the limit spring sheet is located at the kelly rear portion; Tripper is all established in mobile caliper both sides, and tripper comprises lever support and release lever, and lever support is fixed on the mobile caliper, and release lever and lever support are hinged, and release lever front end and described kelly are connected.
Described release lever front end and described kelly are connected, and can be that the release lever front end is provided with the sector head, and the kelly outer wall is provided with axial kelly tooth bar, sector head and the engagement of kelly tooth bar; Also can be to be provided with chute at the release lever front end, the kelly outer wall be provided with radially protruding pin, and protruding pin is arranged in chute.
Compared with the prior art, operation principle of the present utility model and beneficial effect are as follows:
When the needs clamping work pieces, because the wedge shape latch of kelly front end and the engagement of chisel teeth tooth bar, therefore can promote mobile caliper (the unidirectional movement of mobile caliper is unrestricted) fast forward, under the preloading spring effect, kelly can be on tooth bar bob, mobile caliper can rely on fixed caliper rapidly, saves empty stroke time greatly.When mobile caliper contact workpiece, shake leading screw and can lock workpiece, the wedge shape latch of kelly front end meshes with the chisel teeth tooth bar simultaneously, has played positioning action, guarantees that better mobile caliper does not unclamp.When changing the outfit workpiece, unclamp leading screw, by rotating the release lever of tripper, the wedge shape latch of kelly front end is separated with the chisel teeth tooth bar, spring leaf ejects and is spacing to kelly, keeping released state, adjust the spacing that needs between mobile caliper and the fixed caliper, press spring leaf, then preloading spring resets kelly, mobile caliper can't retreat, then lockable position clamping of workpieces again.So just realized the function of fast moving and clamping.Simultaneously because the clamping force mean effort in two side bottoms of mobile caliper, can guarantee the balance and the precision that clamp.The utlity model has advantages such as simple in structure, easy to operate in addition.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the locking device structure schematic diagram of the utility model embodiment 1.
Fig. 3 is the tripper structural representation of the utility model embodiment 1.
Fig. 4 is the tripper structural representation of the utility model embodiment 2.
The specific embodiment
Embodiment 1
Referring to Fig. 1～3, present embodiment 1 comprises base 9, fixed caliper 1, mobile caliper 4, leading screw 5, tooth bar 2(symmetry bilateral chisel teeth), bayonet unit and tripper.
Fixed caliper 1 is installed on base 9 and is rotationally connected with base 9, and leading screw 5 is connected with mobile caliper 4.Tooth bar and fixed caliper are connected, and tooth bar 2 is connected with mobile caliper 4 by bayonet unit.Mobile caliper 4 bilateral symmetry are established bayonet unit, bayonet unit comprises kelly 6, preloading spring 10 and limit spring sheet 7, kelly 6 front portions radially are located in the mobile caliper 4, kelly 6 front ends are provided with wedge shape latch 61, kelly 6 outer walls are provided with axial kelly tooth bar 62(as shown in Figure 3), latch 61 and tooth bar 2 engagements.Mobile caliper 4 is exposed at kelly 6 rear portions, and preloading spring 10 is located in the mobile caliper 4 and is enclosed within on the kelly 6.Limit spring sheet 7 is located at kelly 6 rear portions.Tripper comprises lever support 12, release lever 11 and sector head 14, and lever support 12 is fixed on the mobile caliper 4, and release lever 11 is hinged with lever support 12, kelly tooth bar 62 engagements of release lever 11 front ends and kelly 6.Rotate release lever 11, release lever 11 can drive kelly 6 and retreat, and makes the latch 61 of kelly 6 front ends break away from tooth bar 2.It is spacing by limit spring sheet 7 when kelly 6 retreats.Label 3 among Fig. 1 is the jaw of mobile caliper 4, and label 8 is the pressing plate of mobile caliper 4.
Referring to Fig. 4, similar to Example 1, difference only is that described tripper is to be provided with chute 111 at release lever 11 front ends, and kelly 6 outer walls are not established axial kelly tooth bar 62(as shown in Figure 3), and be provided with radially protruding pin 63, protruding pin 63 is arranged in chute 111.Rotating release lever 11 can make kelly 6 retreat the described tooth bar of disengaging equally.It is corresponding consistent with Fig. 3 that all the other do not chat label.
Claims (3)
1. a flat-nose pliers comprises base, fixed caliper, mobile caliper and leading screw; Fixed caliper is installed on base and is rotationally connected with base, and leading screw is connected with mobile caliper; It is characterized in that, also be provided with tooth bar, bayonet unit and tripper;
Tooth bar is bilateral chisel teeth tooth bar, and tooth bar and fixed caliper are connected, and tooth bar is connected with mobile caliper by bayonet unit; Bayonet unit is all established in mobile caliper both sides, bayonet unit comprises kelly, preloading spring and limit spring sheet, the kelly front portion is located in the mobile caliper sidepiece, the kelly front end is provided with latch, latch is the wedge shape latch, latch and tooth bar engagement, and mobile caliper is exposed at the kelly rear portion, preloading spring is located in the mobile caliper and is enclosed within on the kelly, and the limit spring sheet is located at the kelly rear portion; Tripper is all established in mobile caliper both sides, and tripper comprises lever support and release lever, and lever support is fixed on the mobile caliper, and release lever and lever support are hinged, and release lever front end and described kelly are connected.
2. a kind of flat-nose pliers as claimed in claim 1 is characterized in that, described release lever front end and described kelly are connected, and is that the release lever front end is provided with the sector head, and the kelly outer wall is provided with axial kelly tooth bar, sector head and the engagement of kelly tooth bar.
3. a kind of flat-nose pliers as claimed in claim 1 is characterized in that, described release lever front end and described kelly are connected, and is to be provided with chute at the release lever front end, and the kelly outer wall is provided with radially protruding pin, and protruding pin is arranged in chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320121482 CN203109674U (en) | 2013-03-18 | 2013-03-18 | Flat tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320121482 CN203109674U (en) | 2013-03-18 | 2013-03-18 | Flat tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203109674U true CN203109674U (en) | 2013-08-07 |
Family
ID=48890051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320121482 Expired - Fee Related CN203109674U (en) | 2013-03-18 | 2013-03-18 | Flat tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203109674U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741948A (en) * | 2013-12-26 | 2015-07-01 | 昆山杰德模具有限公司 | Novel clamping flat tongs |
| CN108788845A (en) * | 2018-06-22 | 2018-11-13 | 青岛科技大学 | One kind is adjustable to compress assembly |
-
2013
- 2013-03-18 CN CN 201320121482 patent/CN203109674U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741948A (en) * | 2013-12-26 | 2015-07-01 | 昆山杰德模具有限公司 | Novel clamping flat tongs |
| CN104741948B (en) * | 2013-12-26 | 2017-05-10 | 昆山杰德模具有限公司 | Novel clamping flat tongs |
| CN108788845A (en) * | 2018-06-22 | 2018-11-13 | 青岛科技大学 | One kind is adjustable to compress assembly |
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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 |
Granted publication date: 20130807 Termination date: 20180318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |