CN208788056U - A kind of two point workpiece pressing fixture - Google Patents
A kind of two point workpiece pressing fixture Download PDFInfo
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- CN208788056U CN208788056U CN201821219615.3U CN201821219615U CN208788056U CN 208788056 U CN208788056 U CN 208788056U CN 201821219615 U CN201821219615 U CN 201821219615U CN 208788056 U CN208788056 U CN 208788056U
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- clamping lever
- pressing plate
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Abstract
The utility model provides a kind of two point compressing fixture, including two point compressing structure and single-point compressing structure, the two point compressing structure includes pressing plate and pressing device, pressing device band dynamic pressure plate downward actuation, workpiece is pressed between the compression point of the pressing plate and supporting point, the single-point compressing structure includes pressing device and lower support structure, the pressing device includes auxiliary hold-down cylinder and clamping lever, the auxiliary hold-down cylinder is connected with clamping lever, and the clamping lever can be driven to act, workpiece is pressed between the clamping lever and lower support structure.Logical the application compared with prior art, can be avoided the problem that effectively in workpiece compaction process because discontinuity leads to workpiece deformation.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of fixture more particularly to a kind of two point compressing fixture.
Background technique
Part precision component is in fixation, process, and due to the effect of pressing force, stress change may occur for workpiece
Shape.Especially for thin plate, thin wall component, serious, high for the processing request precision component of metaboly is compressed, it is just necessary
It re-works, reduces processing efficiency, increase cost of labor, and precision is difficult to ensure.
Sheet part presses tight mode to center frequently with point-supported mode clamping, if directlyed adopt, and compresses
Cheng Zhonghui is because discontinuity causes part to deform in clamping process.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of two point workpiece pressing fixtures, can overcome sheet member pressure
The difficult point tightly deformed.
A kind of the technical scheme that the utility model is provided is as follows: two point workpiece pressing fixture, it is characterised in that: including two point
Compressing structure, single-point compressing structure, positioning pin and pedestal, the two point compressing structure and single-point compressing structure are separately positioned on work
The left and right sides of part is processed for compressing to workpiece；The bottom positioning pin is fixed on the base, and is contacted with the bottom of workpiece, is used
It prevents from shifting in fixed workpiece；
The two point compressing structure includes pressing plate, pressing device, lower support structure, and there are two pressures for setting on the pressing plate
Tight, there are two positioning support points, the pressing device to pass through pressing plate for setting in the lower support structure, passes through one with pressing plate
The connection of a tie point, the pressing plate can be using tie points as axis rotation, and the pressing device includes compressed oil cylinder and clamping lever,
The compressed oil cylinder is connected with clamping lever, and the clamping lever can be driven to act, and clamping lever band dynamic pressure plate moves downwards
Make, workpiece is pressed between the compression point of the pressing plate and the positioning support point of lower support structure；
The single-point compressing structure includes pressing device, lower support structure, the pressing device include compressed oil cylinder with
Clamping lever, the compressed oil cylinder are connected with clamping lever, and the clamping lever can be driven to act, and workpiece is pressed on institute
It states between clamping lever and lower support structure.
Further, there are two bulge-structure, described two compression point difference for the pressing plate bottom of the two point compressing structure
It is arranged on two bulge-structures, the bulge-structure is spherical structure.
Further, the compression point in the two point compressing structure positioned at pressing plate the same side is vertical with positioning support point right
It answers.
Further, the rotational angle that pressing plate surrounds tie point in the two point compressing structure is not more than 90 degree.
Further, the two point compressing fixture further includes support post and pedestal, and the support post is fixed on pedestal
On, one end of the lower support structure is arranged on support post, and the other end is contacted with workpiece.
Further, it is provided with spring in the support post, for buffering pressing force.
Compared with prior art, the application uses pressing plate that can effectively avoid work by the way of two point compression as auxiliary
Because of the problem of discontinuity leads to workpiece deformation in part compaction process.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1: the main view of fixture in the utility model embodiment；
Fig. 2: the top view of fixture in the utility model embodiment；
Fig. 3: the main view of two point compressing structure in the utility model embodiment；
Fig. 4: the structure chart of pressing plate in the utility model embodiment；
Fig. 5: the operation diagram of single-point compressing structure in the utility model embodiment；
Specific embodiment
Below with reference to the attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
It describing clear, perfectly, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment, in the absence of conflict, the features in the embodiments and the embodiments of the present application can be combined with each other, below will
This utility model is described in detail with reference to attached drawing and in conjunction with the embodiments.
As shown in Fig.1 and Fig.2, a kind of two point workpiece pressing fixture, is fixed on pedestal 5 by positioning pin 4, a left side for fixture
Side is two point compressing structure 2, and right side is single-point compressing structure 3.Since 1 structure of workpiece is special, the left part of workpiece 1 needs
Two component spacing very littles for compressing processing compress mode using single-point and workpiece 1 are easily caused to deform, therefore use two point and compress
Structure 2 carrys out workpiece pressing 1.
As shown in figure 3, in a kind of embodiment of the application, two point compressing structure 2 include pressing plate 21, pressing device 22,
Lower support structure 24, support post 25 and pedestal 26.Support post 28 is fixed on base plate 26, plays a supporting role.Support
Column 25 has two to be located at two sides, is inside provided with spring structure, so that pressing force is obtained certain buffering, prevents pressing force
It is excessive suddenly to cause workpiece 1 damaged.
As shown in figure 4, being respectively arranged with bulge-structure 23 at left and right sides of 21 bottom of pressing plate, two compression points 231 are distinguished
It is arranged on the two bulge-structures 23.The contact surface of bulge-structure 23 and workpiece 1 is spherical structure.Spherical structure ensure that work
The contact area of part and support construction is small as far as possible, and the small pressing force of forced area is big, and compression is more reliable, and workpiece 1 is avoided to become
Shape.
There are two positioning support points 241 for setting in the lower support structure 24 of two point compressing structure 2.Pressing device 22 to
The lower tail end for pushing pressing plate 21, the compression point 231 of 21 front end of pressing plate are contacted with workpiece 1, by adjusting shaft screw 27, adjustment
The position of pressing device 22 is located in a straight line the compression point 231 positioned at 21 the same side of pressing plate with positioning support point 241,
It is vertical corresponding.Then by workpiece 1 be pressed on pressing plate 21 compression point 231 and the positioning support point 241 of lower support structure 24 it
Between.If compression point 231 is staggered with positioning support point 241, the pressing force that pressing plate 1 acts on workpiece can only compensate supporting point
The deformation of 241 inner or outer sides, and after compensating for the deformation of side, the deformation of the other side can change greatly.It is pressed in the present embodiment
Tight point 231 is opposite with about 241 supporting point, and the pressing force that pressing plate 21 acts on workpiece 1 plays the role of workpiece pressing 1,
And effectively workpiece can be avoided to deform.It ensure that the position for compressing point, it is ensured that compress quality.
Pressing device 22 is connect with pressing plate 21 by shaft screw 27, and pressing plate 21 can be axis rotation with shaft screw 27.
Pressing plate 21 is not more than 90 degree around the rotational angle of shaft screw 27, can guarantee that the position of pressing plate 21 is adjusted in a controllable model
In enclosing.
In practical operation scene, shaft screw 27 can be changed to other connection structures, as long as can reach and the application phase
Same effect, the specific protection scope of the application are not limited.
Fig. 5 is illustrated in a kind of embodiment of the application, and the pressing device 31 of single-point compressing structure 3 is in 32 He of impaction state
Releasing orientation 33, while also showing the working condition of pressing device 31.Pressing device 31 includes compressed oil cylinder 311 and compresses
Lever 312, compressed oil cylinder 311 drive clamping lever 312 directly to exert a force to workpiece 1, workpiece 1 are compressed.Because of the right side of the workpiece 1
Side structure only needs single-point to compress, and single-point compressing structure 3 is not needed compared to unlike two point compressing structure 2 using pressing plate
21 as auxiliary.
Combine figure embodiment that the application is described in detail above, those skilled in the art can be according to upper
It states and bright many variations example is made to the application.Thus, certain details in embodiment should not constitute the restriction to the application, this
Apply the protection scope using the range that the appended claims define as the application.
Claims (7)
1. a kind of two point workpiece pressing fixture, it is characterised in that: including two point compressing structure and single-point compressing structure, the two point
Compressing structure and single-point compressing structure are separately positioned on the left and right sides of workpiece, process for compressing to workpiece；The bottom positioning
Pin is fixed on the base, and is contacted with the bottom of workpiece, prevents from shifting for fixing workpiece；
The two point compressing structure includes pressing plate, pressing device, lower support structure, and there are two compress for setting on the pressing plate
Point, there are two positioning support points, the pressing device to pass through pressing plate for setting in the lower support structure, passes through one with pressing plate
Tie point connection, the pressing plate can be using tie points as axis rotation, and the pressing device includes assisting hold-down cylinder and clamping lever,
The auxiliary hold-down cylinder is connected with clamping lever, and the clamping lever can be driven to act, and clamping lever band dynamic pressure plate is downward
Movement, workpiece is pressed between the compression point of the pressing plate and the positioning support point of lower support structure；
The single-point compressing structure includes pressing device, lower support structure, and the pressing device includes auxiliary hold-down cylinder and pressure
Tight lever, the auxiliary hold-down cylinder are connected with clamping lever, and the clamping lever can be driven to act, and workpiece is pressed on institute
It states between clamping lever and lower support structure.
2. two point workpiece pressing fixture according to claim 1, which is characterized in that the pressing plate bottom of the two point compressing structure
There are two bulge-structure, described two compression points to be separately positioned on two bulge-structures in portion, and the bulge-structure is spherical surface knot
Structure.
3. two point workpiece pressing fixture according to claim 1, which is characterized in that be located at pressure in the two point compressing structure
The compression point and positioning support point of plate the same side are vertical corresponding.
4. two point workpiece pressing fixture according to claim 1, which is characterized in that pressing plate encloses in the two point compressing structure
Rotational angle around tie point is not more than 90 degree.
5. two point workpiece pressing fixture according to claim 1, which is characterized in that the two point compressing structure further includes branch
Support column and pedestal, the support post are fixed on the base, and one end of the lower support structure is arranged on support post,
The other end is contacted with workpiece.
6. two point workpiece pressing fixture according to claim 1, which is characterized in that the single-point compressing structure further includes branch
Support column and pedestal, the support post are fixed on the base, and one end of the lower support structure is arranged on support post,
The other end is contacted with workpiece.
7. two point workpiece pressing fixture according to claim 5 or 6, which is characterized in that be provided in the support post
Spring, for buffering pressing force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821219615.3U CN208788056U (en) | 2018-07-27 | 2018-07-27 | A kind of two point workpiece pressing fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821219615.3U CN208788056U (en) | 2018-07-27 | 2018-07-27 | A kind of two point workpiece pressing fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208788056U true CN208788056U (en) | 2019-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821219615.3U Active CN208788056U (en) | 2018-07-27 | 2018-07-27 | A kind of two point workpiece pressing fixture |
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| Country | Link |
|---|---|
| CN (1) | CN208788056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849231A (en) * | 2019-10-25 | 2020-02-28 | 浙江信正精密科技有限公司 | Skylight guide rail examines utensil hold-down mechanism |
-
2018
- 2018-07-27 CN CN201821219615.3U patent/CN208788056U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849231A (en) * | 2019-10-25 | 2020-02-28 | 浙江信正精密科技有限公司 | Skylight guide rail examines utensil hold-down mechanism |
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