CN212683108U - Vacuum pump cover blank bores and mills pressurize clamping structure - Google Patents
Vacuum pump cover blank bores and mills pressurize clamping structure Download PDFInfo
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- CN212683108U CN212683108U CN202021012867.6U CN202021012867U CN212683108U CN 212683108 U CN212683108 U CN 212683108U CN 202021012867 U CN202021012867 U CN 202021012867U CN 212683108 U CN212683108 U CN 212683108U
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Abstract
The utility model relates to a vacuum pump cover blank bores and mills pressurize and press from both sides dress structure, including vacuum pump cover and vacuum pump cover location hold-down mechanism, equipartition installation through-hole is gone up to the vacuum pump cover, equipartition technology boss is gone up to the vacuum pump cover, vacuum pump cover periphery sets up wrong limit prevention vacuum pump cover location hold-down mechanism includes vacuum pump cover positioning mechanism and vacuum pump cover hold-down mechanism. The utility model has reasonable distribution of components and parts, and is distributed outside evenly, thus being convenient for maintenance; a full-automatic hydraulic clamping mode is adopted, so that the device is safe and reliable; by adopting the sequence valve and the pipeline oil pressure measuring device, the oil pressure on each pipeline can be adjusted, measured and controlled; the clamping stress of the workpiece is ensured to be uniform without deformation; after the clamp is used, the labor intensity is low, the production efficiency is high, and the quality is stable.
Description
Technical Field
The utility model belongs to the technical field of vacuum pump cover processing, a vacuum pump cover blank bores and mills pressurize and press from both sides dress structure is related to.
Background
The existing clamping scheme for processing the vacuum pump cover blank is manual clamping, and because the pump cover is made of aluminum and has a thin wall, a workpiece is positioned in a positioning mode of 'one surface and two pins', wherein the positioning surface consists of three supporting points. When the workpiece is compressed, the stress of the three supporting points is ensured to be uniform, but the workpiece is difficult to deform due to the fact that the workpiece is uniformly stressed by manual clamping, and the requirement on the machining precision of the workpiece cannot be met. The existing clamping mode is low in efficiency and difficult to guarantee quality, and workpieces are difficult to trace to which station is processed.
Disclosure of Invention
An object of the utility model is to provide a vacuum pump cover blank bores and mills pressurize and press from both sides dress structure can solve the problem that current clamping mode is not only inefficiency and quality are difficult to the assurance.
According to the utility model provides a technical scheme: a drilling, milling and pressure maintaining clamping structure for a vacuum pump cover blank comprises a vacuum pump cover and a vacuum pump cover positioning and pressing mechanism, wherein through holes are uniformly distributed in the vacuum pump cover, process bosses are uniformly distributed in the vacuum pump cover, and the periphery of the vacuum pump cover is provided with an anti-misalignment edge; the vacuum pump cover positioning and compressing mechanism comprises a vacuum pump cover positioning mechanism and a vacuum pump cover compressing mechanism.
As a further improvement, the vacuum pump cover positioning mechanism comprises a positioning block and a positioning pin.
As a further improvement, the quantity of locating piece does, comprises first locating piece, second locating piece, third locating piece, the quantity of locating pin does, comprises first locating pin, second locating pin.
As a further improvement, vacuum pump cover hold-down mechanism includes the pneumatic cylinder, the inboard articulated connecting block lower part in pneumatic cylinder upper portion, the outer tip of the articulated depression bar of pneumatic cylinder piston end, connecting block upper portion is articulated the depression bar middle part.
As a further improvement of the utility model, the pneumatic cylinder is vertical setting, the pneumatic cylinder is located the outside of locating piece.
As a further improvement, the vacuum pump cover positioning mechanism is provided with a supporting cylinder, and the supporting cylinder comprises a first supporting cylinder and a first supporting cylinder.
As a further improvement, the error block is placed to vacuum pump cover positioning mechanism one side, set up the mistake proofing face in the error block.
As a further improvement of the utility model, the hydraulic cylinder and the supporting cylinder are externally connected with a driving oil circuit; the drive oil circuit comprises a hydraulic station, the hydraulic station comprises a hydraulic station output end and a hydraulic station input end, the hydraulic station output end is sequentially connected with a check valve and an energy accumulator (), the energy accumulator output end is respectively connected with the hydraulic cylinder input end and the sequence valve input end, the sequence valve output end is connected with the support cylinder input end, the support cylinder output end is connected with the hydraulic station input end, and the check valve oil spilling port is connected with the hydraulic station input end.
As a further improvement, the pressure gauge is connected to the energy accumulator output.
The utility model discloses an actively advance the effect and lie in:
the utility model has reasonable distribution of components and parts, and is distributed outside evenly, thus being convenient for maintenance; a full-automatic hydraulic clamping mode is adopted, so that the device is safe and reliable; by adopting the sequence valve and the pipeline oil pressure measuring device, the oil pressure on each pipeline can be adjusted, measured and controlled; the clamping stress of the workpiece is ensured to be uniform without deformation; after the clamp is used, the labor intensity is low, the production efficiency is high, and the quality is stable.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is the utility model discloses the structural schematic of vacuum pump cover.
Fig. 4 is the utility model discloses the structural schematic diagram that vacuum pump cover overlooked.
Fig. 5 is a schematic view of the driving oil path of the present invention.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings.
In the figures 1-5, the device comprises a vacuum pump cover 1, an installation through hole 1-1, a process boss 1-2, an anti-misalignment edge 1-3, a positioning block 2, a first positioning block 2-1, a second positioning block 2-2, a third positioning block 2-3, a positioning pin 3, a first positioning pin 3-1, a second positioning pin 3-2, a hydraulic cylinder 4, a connecting block 5, a pressure rod 6, a supporting cylinder 7, a first supporting cylinder 7-1, a second supporting cylinder 7-2, an misalignment block 8, an anti-misalignment surface 8-1, a hydraulic station output end 9-1, a hydraulic station input end 9-2, a one-way valve 10, an energy accumulator 11, a sequence valve 12, a pressure gauge 13 and the like.
As shown in fig. 1-2, the utility model relates to a vacuum pump cover blank bores and mills pressurize and press from both sides dress structure, including vacuum pump cover 1 and vacuum pump cover location hold-down mechanism, as shown in fig. 3-4, equipartition installation through-hole 1-1 on the vacuum pump cover 1 is used for with the vacuum pump body coupling, 3 technology bosss 1-2 of equipartition on the vacuum pump cover 1 for be convenient for the machine tooling location, 1 periphery of vacuum pump cover sets up prevents wrong limit 1-3, prevents that wrong limit 1-3 is different with other marginal shapes of 1 periphery of vacuum pump cover, is used for preventing to take place the malposition when assembling.
The vacuum pump cover positioning and compressing mechanism comprises a vacuum pump cover positioning mechanism and a vacuum pump cover compressing mechanism. The vacuum pump cover positioning mechanism comprises a positioning block 2 and a positioning pin 3. The number of the positioning blocks 2 is 3, the positioning blocks are composed of a first positioning block 2-1, a second positioning block 2-2 and a third positioning block 2-3 and matched with the position of the process boss 1-2, the number of the positioning pins 3 is 2, the positioning pins are composed of a first positioning pin 3-1 and a second positioning pin 3-2 and matched with the size and the position of the installation through hole 1-1.
Vacuum pump cover hold-down mechanism includes pneumatic cylinder 4, and pneumatic cylinder 4 is vertical setting, and pneumatic cylinder 4 is located the outside of locating piece 2, and 4 inboard articulated connecting block 5 lower parts in upper portion of pneumatic cylinder, the outer tip of the articulated depression bar 6 in 4 piston ends of pneumatic cylinder, the articulated depression bar 6 middle part in 5 upper portions of connecting block.
In order to avoid the cutter back-off phenomenon of the vacuum pump cover 1 caused by the cutting force of a cutter in the drilling and milling process, a supporting cylinder 7 is arranged in a positioning mechanism of the vacuum pump cover, and the supporting cylinder 7 comprises a first supporting cylinder 7-1 and a second supporting cylinder 7-2.
The support cylinder is one kind of frock clamp components and parts, is the execution original paper that the technical content is higher. The supporting cylinder generally uses a fixture product which is matched with the requirement of high automation degree, and is mainly used for propping a workpiece to prevent the workpiece from being deformed by cutting force during machining, so that the workpiece is prevented from vibrating during machining, the machining precision of the workpiece is influenced, the supporting cylinder has a low-pressure self-locking function, and an anti-corrosion material can prevent the cooling liquid and the working environment from corroding the cylinder body. The support device is mainly used for preventing the deformation support of the processed workpiece in the processing process.
In order to prevent the vacuum pump cover 1 from generating errors in the placing process, a mistake-proofing block 8 is placed on one side of a vacuum pump cover positioning mechanism, a mistake-proofing surface 8-1 is arranged in the mistake-proofing block 8, and the mistake-proofing surface 8-1 is matched with a mistake-proofing edge 1-3.
The hydraulic cylinder 4 and the supporting cylinder 7 are externally connected with a driving oil circuit.
As shown in fig. 5, the driving oil circuit comprises a hydraulic station, the hydraulic station comprises a hydraulic station output end 9-1 and a hydraulic station input end 9-2, the hydraulic station output end 9-1 is sequentially connected with a check valve 10 and an energy accumulator 11, the output end of the energy accumulator 11 is respectively connected with the input end of the hydraulic cylinder 4 and one end of a sequence valve 12, the other end of the sequence valve 12 is connected with the input end of a supporting cylinder 7, and the output end of the supporting cylinder 7 is connected with the hydraulic station input end 9-2. The oil overflow port of the one-way valve 10 is connected with the input end 9-2 of the hydraulic station.
The accumulator 11 assists in balancing small changes in oil pressure generated during machining, so that stability of oil pressure during the whole machining process can be guaranteed.
The output end of the energy accumulator 11 is connected with a pressure gauge 13 for monitoring the pressure of the oil way in real time.
The working process of the utility model is as follows:
and putting the vacuum pump cover 1 into a vacuum pump cover positioning mechanism. The first positioning pin 3-1 and the second positioning pin 3-2 are placed in the installation through hole 1-1, and the first positioning block 2-1, the second positioning block 2-2 and the third positioning block 2-3 are located at the lower part of the process boss 1-2, so that the positioning of the vacuum pump cover 1 is completed.
The hydraulic station is started, hydraulic oil passes through the one-way valve 10 and the energy accumulator 11 from the output end 9-1 of the hydraulic station to enter the input end of the hydraulic cylinder 4 and the sequence valve 12, the hydraulic oil flows into the input end of the hydraulic cylinder 4 at first, the starting pressure of the sequence valve 12 is not reached, the hydraulic cylinder 4 drives the outer end part of the pressure rod 6 to ascend, the pressure rod 6 rotates around the upper part of the connecting block 5, the inner end part of the pressure rod 6 descends, and the top of the. When the hydraulic cylinder 4 is filled with hydraulic oil, the oil pressure at the input end of the sequence valve 12 rises, the sequence valve 12 is opened, the hydraulic oil enters the supporting cylinder 7, and the piston ends of the first supporting cylinder 7-1 and the second supporting cylinder 7-2 rise to abut against the bottom of the vacuum pump cover 1.
Claims (9)
1. The utility model provides a vacuum pump cover blank bores mills pressurize and presss from both sides dress structure which characterized in that: the structure comprises a vacuum pump cover (1) and a vacuum pump cover positioning and pressing mechanism, wherein through holes (1-1) are uniformly distributed on the vacuum pump cover (1), process bosses (1-2) are uniformly distributed on the vacuum pump cover (1), and dislocation prevention edges (1-3) are arranged on the periphery of the vacuum pump cover (1); the vacuum pump cover positioning and compressing mechanism comprises a vacuum pump cover positioning mechanism and a vacuum pump cover compressing mechanism.
2. The vacuum pump cover blank drilling and milling pressure maintaining clamping structure of claim 1, characterized in that: the vacuum pump cover positioning mechanism comprises a positioning block (2) and a positioning pin (3).
3. The vacuum pump cover blank drilling and milling pressure maintaining clamping structure of claim 2, characterized in that: the number of the positioning blocks (2) is 3, the positioning blocks comprise a first positioning block (2-1), a second positioning block (2-2) and a third positioning block (2-3), the number of the positioning pins (3) is 2, and the positioning pins comprise a first positioning pin (3-1) and a second positioning pin (3-2).
4. The vacuum pump cover blank drilling and milling pressure maintaining clamping structure of claim 2, characterized in that: the vacuum pump cover pressing mechanism comprises a hydraulic cylinder (4), the inner side of the upper portion of the hydraulic cylinder (4) is hinged to the lower portion of a connecting block (5), the piston end of the hydraulic cylinder (4) is hinged to the outer end portion of a pressing rod (6), and the upper portion of the connecting block (5) is hinged to the middle portion of the pressing rod (6).
5. The vacuum pump cover blank drilling and milling pressure maintaining clamping structure of claim 4, wherein: the hydraulic cylinder (4) is vertically arranged, and the hydraulic cylinder (4) is located on the outer side of the positioning block (2).
6. The vacuum pump cover blank drilling and milling pressure maintaining clamping structure of claim 4, wherein: a supporting cylinder (7) is arranged in the vacuum pump cover positioning mechanism, and the supporting cylinder (7) comprises a first supporting cylinder (7-1) and a second supporting cylinder (7-2).
7. The vacuum pump cover blank drilling and milling pressure maintaining clamping structure of claim 1, characterized in that: a misplacing block (8) is placed on one side of the vacuum pump cover positioning mechanism, and a mistake-proofing surface (8-1) is arranged in the misplacing block (8).
8. The vacuum pump cover blank drilling and milling pressure maintaining clamping structure of claim 6, wherein: the hydraulic cylinder (4) and the supporting cylinder (7) are externally connected with a driving oil circuit; the driving oil way comprises a hydraulic station, the hydraulic station comprises a hydraulic station output end (9-1) and a hydraulic station input end (9-2), the hydraulic station output end (9-1) is sequentially connected with a check valve (10) and an energy accumulator (11), the output end of the energy accumulator (11) is respectively connected with the input end of a hydraulic cylinder (4) and the input end of a sequence valve (12), the output end of the sequence valve (12) is connected with the input end of a supporting cylinder (7), the output end of the supporting cylinder (7) is connected with the hydraulic station input end (9-2), and an oil overflow port of the check valve (10) is connected with the input end (9-2) of the hydraulic station.
9. The vacuum pump cover blank drilling and milling pressure maintaining clamping structure of claim 8, wherein: the output end of the energy accumulator (11) is connected with a pressure gauge (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021012867.6U CN212683108U (en) | 2020-06-04 | 2020-06-04 | Vacuum pump cover blank bores and mills pressurize clamping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021012867.6U CN212683108U (en) | 2020-06-04 | 2020-06-04 | Vacuum pump cover blank bores and mills pressurize clamping structure |
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| CN212683108U true CN212683108U (en) | 2021-03-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894576A (en) * | 2021-10-15 | 2022-01-07 | 湖北华阳汽车变速系统股份有限公司 | Gearbox shell, clamp and machining method |
-
2020
- 2020-06-04 CN CN202021012867.6U patent/CN212683108U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894576A (en) * | 2021-10-15 | 2022-01-07 | 湖北华阳汽车变速系统股份有限公司 | Gearbox shell, clamp and machining method |
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