CN209664484U - A kind of expansion clamp - Google Patents
A kind of expansion clamp Download PDFInfo
- Publication number
- CN209664484U CN209664484U CN201920339671.9U CN201920339671U CN209664484U CN 209664484 U CN209664484 U CN 209664484U CN 201920339671 U CN201920339671 U CN 201920339671U CN 209664484 U CN209664484 U CN 209664484U
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- China
- Prior art keywords
- compact heap
- movable block
- hole
- shifting chute
- tapered rod
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Abstract
The utility model provides a kind of expansion clamp, including tapered rod, the tapered rod is provided with tapered surface, it further include movable block and compact heap, lateral shifting chute is provided in the compact heap, the compact heap bottom is provided with the hole for being through to shifting chute vertically, the internal diameter in the hole is greater than the maximum outside diameter of the tapered rod, the movable block is accommodated to shifting chute, the movable block is provided with taper fit face, in the middle part of the compact heap, the taper fit face and the tapered surface are matched in the taper fit face.The utility model is capable of the size of adjust automatically fixture, and the part different suitable for hole size enhances fixture to the adaptable of various sizes of part without manually adjusting grip size.
Description
Technical field
The utility model belongs to machine tool fixture field more particularly to a kind of expansion clamp field.
Background technique
, sometimes will be using inner hole as positioning datum during part is processed, and then carry out inner hole Outside Dimensions
Processing, such as the processing of gear, thus need using the fixture positioned from inner hole.
105149700 A of patent document CN provides a kind of for grinding machine outer gear ring clamp for machining, including pedestal, taper
Expansion sleeve and taper rod, taper expansion sleeve are equipped with notch, and taper rod passes through taper expansion sleeve, and connect with whorl of base.This
When rotation taper rod make taper head squeeze taper expansion sleeve, expand taper expansion sleeve outward, outer gear ring be fixed.
One of above-mentioned patent document is used for grinding machine outer gear ring clamp for machining, according to the inner hole ruler of outer gear ring to be processed
Very little, control taper head squeezes the extruding degree of taper expansion sleeve.But the outer gear ring for processing different model, it needs to realize hand
The dilation dimension of dynamic adjustment taper expansion sleeve, is then clamped positioning to workpiece again.
Utility model content
To solve to need the technical issues of manually adjusting grip size in the prior art, the utility model provides a kind of expansion folder
Tool, is capable of the size of adjust automatically fixture, and the part different suitable for hole size enhances without manually adjusting grip size
Fixture is adaptable to various sizes of part.
The utility model proposes a kind of expansion clamp, including tapered rod, the tapered rod is provided with tapered surface, further includes moving
Motion block and compact heap are provided with lateral shifting chute in the compact heap, and the compact heap bottom is provided with is through to shifting vertically
The hole of dynamic slot, the internal diameter in the hole are greater than the maximum outside diameter of the tapered rod, and the movable block is accommodated to shifting chute, the shifting
Motion block is provided with taper fit face, and the taper fit face is in the middle part of the compact heap, the taper fit face and the cone
Shape face matches.
Further, the compact heap includes upper compact heap and lower compact heap, and the upper compact heap bottom surface is provided with lateral
Shifting chute, the lower compact heap are connected with the upper compact heap, and the lower compact heap is provided centrally with through-hole, in the through-hole
Diameter is greater than the tapered rod maximum outside diameter.
Further, the movable block at least 3, the upper compact heap bottom surface are provided at least three shifting chute.
It further, further include elastic component, the movable block bottom surface and the upper compact heap bottom surface are provided with recessed portion, institute
Elastic component is stated to be located in the recessed portion.
Compared with prior art, the utility model has the beneficial effects that:
A kind of 1 expansion clamp provided by the utility model, movable block pass through the tapered surface phase in taper fit face and tapered rod
Cooperation, when pushing down on compact heap, tapered rod moves relatively upward, and then push movable block in the shifting chute of compact heap to
Outer movement, parts to be processed inner hole apply the power of opposite direction to movable block, position so that part be clamped.Changed by lathe and is pressed
The downward power of tight block, is capable of the size of adjust automatically fixture, the part different suitable for hole size, without manually adjusting fixture
Size enhances fixture to the adaptable of various sizes of part.
2 a kind of expansion clamps provided by the utility model, by the way that elasticity is arranged in movable block bottom surface and upper compact heap bottom surface
Part, when completing to the processing of part, after being lifted up compact heap, movable block under the action of the elastic member to contract, thus
Part is released and clamps positioning, realizes the effect for automatically terminating clamp, to reduce the labour of operator, improves work
Make efficiency.
Detailed description of the invention
Fig. 1 is the present embodiment expansion clamp overall structure diagram；
Fig. 2 is sectional view along A-A in Fig. 1；
Fig. 3 a is the structural schematic diagram of upper compact heap in Fig. 2；
Fig. 3 b is the bottom view of upper compact heap in Fig. 3 a；
Fig. 4 a is the structural schematic diagram of movable block in Fig. 2；
Fig. 4 b is the front view of movable block in Fig. 4 a；
Fig. 4 c is the bottom view of movable block in Fig. 4 a；
Fig. 5 is the structural schematic diagram of tapered rod in Fig. 2.
Specific embodiment
The technical solution in the utility model specific embodiment in detail, completely describe below in conjunction with attached drawing.
Obviously, described embodiment is only the part specific embodiment of the total technical solution of the utility model, and not all
Embodiment.Total design based on the utility model, those of ordinary skill in the art's every other embodiment obtained, all
Fall within the range of the utility model protection.
In the description of the present invention, it should be understood that term " center ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this is practical
Novel limitation.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary.Work as member
Part referred to as " is fixed on " or " being set to " another element, it can be directly on the other element or indirectly another at this
On a element.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
In the prior art, it for the outer gear ring of processing different model, needs to realize the expansion for manually adjusting taper expansion sleeve
Then size is clamped positioning to workpiece again.To solve to need the technical issues of manually adjusting grip size in the prior art, this
Utility model provides a kind of expansion clamp, is capable of the size of adjust automatically fixture, the part different suitable for hole size.
With reference to attached drawing 1 and attached drawing 2, the present embodiment proposes that a kind of expansion clamp, including tapered rod 3, the tapered rod 3 are arranged
There is tapered surface 31, further includes movable block 2 and compact heap 1, lateral shifting chute 112, the compression are provided in the compact heap 1
1 bottom of block is provided with the hole 111 for being through to shifting chute vertically, and the maximum that the internal diameter in the hole 111 is greater than the tapered rod 3 is outer
Diameter, the movable block 2 are accommodated to shifting chute 112, and the movable block 2 is provided with taper fit face 22, the taper fit face
22 close to 1 middle part of compact heap, and the taper fit face 22 and the tapered surface 31 match.
Based on above-mentioned, the present embodiment at least have the following technical effects or advantages:
1 top of compact heap is connected with lathe 4, and tapered rod 3 is connected on pedestal 5, and part is connected on pedestal 5.It is mobile
Block 1 is matched by taper fit face 22 with the tapered surface 31 of tapered rod 3, when lathe 4 pushes down on compact heap 1, tapered rod 3
It moves relatively upward, and then movable block 2 is pushed to move from inside to outside in the shifting chute 112 of compact heap 1, parts to be processed inner hole is to shifting
Motion block 2 applies the power of opposite direction, positions so that part be clamped.Change the downward power of compact heap 1 by lathe, can adjust automatically
The size of whole fixture, the part different suitable for hole size enhance fixture to different inner holes without manually adjusting grip size
The part of size it is adaptable.
With reference to attached drawing 2, compact heap 1 includes upper compact heap 11 and lower compact heap 12, and upper 11 bottom surface of compact heap is provided with transverse direction
Shifting chute 112, movable block 2 is placed in shifting chute 112, and movable block 2 is contacted with lower compact heap 12, lower compact heap 12 and upper pressure
Tight block 11 is connected, and lower compact heap 12 is provided centrally with through-hole 121, and 121 internal diameter of through-hole is greater than 3 maximum outside diameter of tapered rod.
Specifically, upper compact heap 11 is circular piece with reference to attached drawing 3a and attached drawing 3b, top is connected on lathe 4, lower section
Be provided with shifting chute 112, the quantity of shifting chute 112 is determined according to the quantity of movable block 2.To make multiple movable blocks 2 in part
Uniform location in inner hole, shifting chute 112 are arranged along the even circumferential of upper compact heap 11.Threaded hole is provided on upper compact heap 11
114, for being connected with lower compact heap 12.
Lower compact heap 12 is circular piece, and middle position is provided with through-hole 121, when being clamped positioning to part, tapered rod 3
It is in contact across through-hole 121 with movable block 2.It is additionally provided with fixation hole 122 on lower compact heap, for being connect with upper compact heap 11,
Screw passes through in 122 precession of fixation hole in the threaded hole 114 of compact heap 11, the company of compact heap 11 and lower compact heap 12 in realization
It connects.
With reference to attached drawing 4a, attached drawing 4b and attached drawing 4c, movable block 2 is sector, and fan-shaped small arc-shaped end is set as taper and matches
Conjunction face 22, taper fit face 22 is identical as the taper of tapered surface 31 of tapered rod 3, and tapered rod 3 can be along 22 phase of taper fit face
Movable block 2 is moved.To guarantee that movable block 2 comes into full contact with inner bore of part, movable block 2 is opposite with taper fit face 22
Another arc end is provided with protruding portion 23, and protruding portion 23 stretches out upper 11 outer edge position of movable block.To further increase fixture pair
The clip stability of part, the movable block 2 of the present embodiment at least 3.
With reference to attached drawing 2 and attached drawing 5, the outer surface of tapered rod 3 is set as tapered surface 31, and center is provided with through hole
32, screw 6 passes through the through hole 32, and tapered rod 3 is connected on pedestal 5.For the stability for increasing grip size, tapered surface 31
5 °~10 ° are set as with the angle of taper of the center line of tapered rod 3, keeps tapered surface 31 and taper fit face 22 self-locking, from
And keep the position of tapered rod 3 and movable block 2 firm, the stability of grip size is improved, and then improve and consolidate to part clamping
Property.
With reference to attached drawing 2, the present embodiment further includes elastic component 24, and 2 bottom surface of movable block and 11 bottom surface of upper compact heap are provided with
Recessed portion 113, the elastic component 24 are located in the recessed portion 113.When being clamped to part, lathe pushes down on compact heap
1, tapered rod 3 moves relatively upward, tapered rod 3 push movable block 2 be displaced outwardly, elastic component 24 by movable block 2 apply to
Extrapolability, elastic component 24 are in tensional state；After completing the processing to part, tapered rod 3 is separated with movable block 2, elastic component
24 start to shrink, and movable block 2 moves inward under the action of the convergent force of elastic component 24, leave inner bore of part surface, releasing pair
The clamping of part, therefore can be realized the purpose for automatically terminating clamp, to reduce the labour of operator, improve work
Make efficiency.
Further the operating process of the present embodiment is described in detail:
With reference to attached drawing 1 and attached drawing 2, upper compact heap 11 is connected on lathe 4, and tapered rod 3 is connected on pedestal 5, part set
In 5 outside of tapered rod 3 and pedestal, and it is connected on lathe base.When being clamped operation, lathe 4 controls upper 11 He of compact heap
Lower compact heap 12 moves downward, and upper compact heap 11 drives movable block 2 to move downward, then 3 relative upward movement of tapered rod；Tapered rod
3 when moving upwards, and tapered surface 31 is in contact with the taper fit face 22 of movable block 2, and push movable block 2 along shifting chute 112 to
The outside of upper compact heap 11 is mobile, i.e. part inside diameter surface direction；After movable block 2 is in contact with part inside diameter surface, in part
Diameter surface applies inward force to movable block 2, is finally reached the power for being applied to movable block 2 with tapered rod 3 and balances each other, and then to work
Part is clamped fixation.The part different for hole size, by changing lathe 4 to the size of the pressure of upper compact heap 11,
The size for the power that adjustment tapered rod 3 applies movable block 2, and then adjust the distance that movable block 2 is displaced outwardly, i.e., changeable fixture
Size, realize being fixedly clamped to the parts of different hole sizes；After completing part processing, lathe 4 controls upper compact heap
11 move up, and tapered rod 3 is separated with movable block 2, and movable block 2, to contract, leaves part under the action of elastic component 24
Bore area, to automatically terminate clamping of the fixture to part.
Claims (4)
1. a kind of expansion clamp, including tapered rod, the tapered rod is provided with tapered surface, it is characterised in that: further includes movable block
And compact heap, lateral shifting chute is provided in the compact heap, the compact heap bottom is provided with is through to shifting chute vertically
Hole, the internal diameter in the hole is greater than the maximum outside diameter of the tapered rod, and the movable block is accommodated to shifting chute, the movable block
It is provided with taper fit face, the taper fit face is in the middle part of the compact heap, the taper fit face and the tapered surface
It matches.
2. expansion clamp according to claim 1, it is characterised in that: the compact heap includes upper compact heap and lower compression
Block, the upper compact heap bottom surface are provided with lateral shifting chute, and the lower compact heap is connected with the upper compact heap, under described
Compact heap is provided centrally with through-hole, and the through-hole internal diameter is greater than the tapered rod maximum outside diameter.
3. expansion clamp according to claim 2, it is characterised in that: the movable block at least 3, the upper compact heap
Bottom surface is provided at least three shifting chute.
4. expansion clamp according to claim 2, it is characterised in that: it further include elastic component, the movable block bottom surface and institute
It states compact heap bottom surface and is provided with recessed portion, the elastic component is located in the recessed portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920339671.9U CN209664484U (en) | 2019-03-15 | 2019-03-15 | A kind of expansion clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920339671.9U CN209664484U (en) | 2019-03-15 | 2019-03-15 | A kind of expansion clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209664484U true CN209664484U (en) | 2019-11-22 |
Family
ID=68571935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920339671.9U Active CN209664484U (en) | 2019-03-15 | 2019-03-15 | A kind of expansion clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209664484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935423A (en) * | 2021-02-04 | 2021-06-11 | 台州格凌机械股份有限公司 | Be used for gear hole inflation formula anchor clamps |
-
2019
- 2019-03-15 CN CN201920339671.9U patent/CN209664484U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935423A (en) * | 2021-02-04 | 2021-06-11 | 台州格凌机械股份有限公司 | Be used for gear hole inflation formula anchor clamps |
| CN112935423B (en) * | 2021-02-04 | 2021-10-22 | 台州格凌机械股份有限公司 | Be used for gear hole inflation formula anchor clamps |
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