CN207915026U - A kind of clamping device - Google Patents
A kind of clamping device Download PDFInfo
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- CN207915026U CN207915026U CN201721697251.5U CN201721697251U CN207915026U CN 207915026 U CN207915026 U CN 207915026U CN 201721697251 U CN201721697251 U CN 201721697251U CN 207915026 U CN207915026 U CN 207915026U
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- voussoir
- clamping
- positioning base
- clamping device
- pin
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Abstract
A kind of clamping device of the utility model belongs to technical field of mechanical processing.Clamping device described in the utility model includes positioning base (1), clamps voussoir (2), pin (3)；There are one inclined-planes for positioning base (1)；Clamping voussoir (2) is that cross section is trapezoidal structure, and the inclined-plane gradient for clamping voussoir (2) is identical as the inclined-plane gradient of positioning base (1)；On the bottom surface for clamping voussoir (2), perpendicular to the setting of the bottom surface of clamping voussoir (2), there are one step-like through-holes；Pin (3) is inserted into step-like through-hole, and drive clamp voussoir (2) along positioning base (1) inclined-plane downwards, move right.The voussoir clamped-in style tooling that the utility model is set can meet the technology requirement of high-precision forging bottom surface processing.So as to avoid forging bottom surface process because connect tool marks or flatness it is overproof caused by rework rate, improve forging bottom surface processing efficiency.
Description
Technical field
A kind of clamping device of the utility model belongs to technical field of mechanical processing.
Background technology
Usually we process forging blank baseplane, can be ensured with the method that pressing plate or vice compress its dimensional accuracy and
Planarity requirements.But to some formed forgings, flatness and connect tool marks and require high, is difficult to meet bottom surface with the mode that pressing plate compresses
Required precision, to influence delivery quality and manufacturing schedule.
Utility model content
Technical problem to be solved in the utility model is：Formed forgings flatness and connect tool marks and cannot be satisfied after processing
Technology requirement.
The technical solution of the utility model is：A kind of clamping device, the clamping device include positioning base 1, clamping wedge
Block 2, pin 3；Clamping voussoir 2 is that cross section is trapezoidal structure, and there are one notch, the cross of the notch on the surface of positioning base 1
Section is approximate trapezoid, the inclined-plane of 1 notch of positioning base and the inclined-plane gradient for clamping voussoir 2 with the cross section for clamping voussoir 2
It is identical；On the bottom surface for clamping voussoir 2, perpendicular to clamping the bottom surface setting of voussoir 2 there are one step-like through-hole；Pin 3 can
Be inserted into step-like through-hole, and drive clamp voussoir 2 along 1 notch of positioning base inclined-plane downwards, move right, and finally will
It clamps voussoir 2 to be fixed on positioning base 1, and clamping force can be generated to the forging positioned at 2 right side of clamping wedge block.
The inclined-plane gradient for clamping voussoir 2 is 25 °.
When that will clamp voussoir 2 and be fixed on positioning base 1, clamp between the bottom surface and positioning base 1 of voussoir 2 between having
Gap.
There is the gap of 0.2~1.5mm between pin 3 and step-like through-hole.
The utility model has the beneficial effects that：Dedicated voussoir clamped-in style tooling is designed and produced, high-precision forging can be met
The technology requirement of bottom surface processing.So as to avoid forging bottom surface process because connect tool marks or flatness it is overproof caused by return
Work rate improves forging bottom surface processing efficiency.The method can also promote the use of in the processing of similar products simultaneously, ensure that product
Delivery quality and manufacturing schedule.
Description of the drawings
Fig. 1 clamping device schematic diagrames；
Fig. 2 clamping device installation diagrams；
Involved forging schematic diagram in Fig. 3 the utility model
1 be positioning base, 2 be clamp voussoir, 3 be pin, 4 be small end head locating piece, and 5 be clamping device
Specific implementation mode
A kind of clamping device, the clamping device include positioning base 1, clamp voussoir 2, pin 3；It is horizontal to clamp voussoir 2
Section is trapezoidal structure, and there are one notch, the cross section of the notch and the cross sections for clamping voussoir 2 on the surface of positioning base 1
Inclined-plane for approximate trapezoid, 1 notch of positioning base is identical as the clamping inclined-plane gradient of voussoir 2；In the bottom surface for clamping voussoir 2
On, perpendicular to clamping the bottom surface setting of voussoir 2 there are one step-like through-hole；Pin 3 is inserted into step-like through-hole, and is driven
Clamp voussoir 2 along 1 notch of positioning base inclined-plane downwards, move right, and clamping wedge block 2 is finally fixed on positioning base
On 1, and clamping force can be generated to the forging positioned at 2 right side of clamping wedge block.
The inclined-plane gradient for clamping voussoir 2 is 25 °.
When that will clamp voussoir 2 and be fixed on positioning base 1, clamp between the bottom surface and positioning base 1 of voussoir 2 between having
Gap.
There is the gap of 0.2~1.5mm between pin 3 and step-like through-hole.
Embodiment
It is HT250 casting that clamping device, which is assembled in tooling (as shown in Figure 2) its material, and rigidity and machinability are good, fixed
Plane clamped one time is machined to size, and positioning accuracy is convenient for guarantee.Small end head locating piece 4 is processed by CNC milling machine and can guarantee height
Deviation is not more than 0.02mm, and big end selects the close-shaped and gaps product design 0.1mm.Product is placed on fixture, is protected
4 side wall of card small end head locating piece is close to forging (as shown in Figure 3) process area, ensures positioning accuracy request.It tightens and is clamped at two
Device 5 checks the gap between small end head locating piece 4 and forging (as shown in Figure 3), adjusts 6 position of drift and tightens and can open
Beginning bottom surface finishing.
The clamping device 5 of this tooling is in design, it is contemplated that the contour tolerance of workpiece is ± 1mm, thus designs clamping wedge
2 mobile space of block is 1.2mm, and the gap clamped between voussoir 2 and 1 bottom surface of positioning base is taken as 3mm.Since this forging shape goes out
Mould degree is 6 °, to prevent the when of clamping from generating locking phenomenon, is not easy to clamping operation, clamps 2 gradient of voussoir and be selected as 25 ° of (such as Fig. 1
It is shown).Thus for main folder clamp force F2 known to clamping mode with the directions cutting force P on the contrary, by empirical equation F2=KP, K is that safety is
Number：
K=k0k1k2k3k4k5k6
In formula：k0- basic security coefficient, takes 1.5；
k1- machining state coefficient, finishing take 1；
k2- cutting tool dulling coefficient, end face milling 1.2
k3- cutting characteristic coefficient, disconnected pin take 1.2；
k4- hand-operated clamping takes 1.3；
k5- handle is easy to operate to take 1；
k6--- workpiece is mounted on academic title's block and takes 1.5.
It can thus be concluded that K=4.2, F2=4.2 × 403=1693N.
Q=F2/tan25 °=3633N
Clamping force for single pin 3 is:1816N.
Claims (4)
1. a kind of clamping device, which is characterized in that the clamping device includes positioning base (1), clamps voussoir (2), pin
(3)；It is trapezoidal structure that clamp voussoir (2), which be cross section, the surface of positioning base (1) there are one notch, the notch it is transversal
Face is trapezoidal, the inclined-plane of positioning base (1) notch and the inclined-plane gradient for clamping voussoir (2) with the cross section for clamping voussoir (2)
It is identical；On the bottom surface for clamping voussoir (2), perpendicular to the setting of the bottom surface of clamping voussoir (2), there are one step-like through-holes；Pin
(3) it is inserted into step-like through-hole, and clamping voussoir (2) is driven to be transported downwards, to the right along the inclined-plane of positioning base (1) notch
It is dynamic, and finally clamping wedge block (2) is fixed on positioning base (1), and can be produced to being located at the forging on the right side of clamping wedge block (2)
Raw clamping force.
2. a kind of clamping device according to claim 1, which is characterized in that the inclined-plane gradient for clamping voussoir (2)
It is 25 °.
3. a kind of clamping device according to claim 1, which is characterized in that be fixed on positioning bottom voussoir (2) will be clamped
When on seat (1), there is gap between the bottom surface and positioning base (1) of clamping voussoir (2).
4. a kind of clamping device according to claim 1, which is characterized in that have 0.2 between pin (3) and step-like through-hole
The gap of~1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721697251.5U CN207915026U (en) | 2017-12-07 | 2017-12-07 | A kind of clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721697251.5U CN207915026U (en) | 2017-12-07 | 2017-12-07 | A kind of clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207915026U true CN207915026U (en) | 2018-09-28 |
Family
ID=63606493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721697251.5U Active CN207915026U (en) | 2017-12-07 | 2017-12-07 | A kind of clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207915026U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114346947A (en) * | 2022-02-28 | 2022-04-15 | 泰山学院 | Positioning device, platform and method for assembly |
| CN114683072A (en) * | 2020-12-29 | 2022-07-01 | 新兴重工湖北三六一一机械有限公司 | Simple lateral clamping fixture |
-
2017
- 2017-12-07 CN CN201721697251.5U patent/CN207915026U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114683072A (en) * | 2020-12-29 | 2022-07-01 | 新兴重工湖北三六一一机械有限公司 | Simple lateral clamping fixture |
| CN114346947A (en) * | 2022-02-28 | 2022-04-15 | 泰山学院 | Positioning device, platform and method for assembly |
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